From d61932ef7e74f3d9f7863c33c6647c2c52538ed5 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Thu, 9 Apr 2020 16:17:18 +0200
Subject: Prepare for spliting generated into tokens and nodes

---
 crates/ra_syntax/src/ast/generated.rs | 9626 +--------------------------------
 1 file changed, 2 insertions(+), 9624 deletions(-)

(limited to 'crates/ra_syntax/src/ast/generated.rs')

diff --git a/crates/ra_syntax/src/ast/generated.rs b/crates/ra_syntax/src/ast/generated.rs
index bd92e9c87..6216641d8 100644
--- a/crates/ra_syntax/src/ast/generated.rs
+++ b/crates/ra_syntax/src/ast/generated.rs
@@ -1,9625 +1,3 @@
-//! Generated file, do not edit by hand, see `xtask/src/codegen`
+//! This file is actually hand-written, but the submodules are indeed generated.
 
-#[allow(unused_imports)]
-use crate::{
-    ast::{self, support, AstChildren, AstNode, AstToken},
-    NodeOrToken, SyntaxElement,
-    SyntaxKind::{self, *},
-    SyntaxNode, SyntaxToken,
-};
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Semi {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Semi {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Semi {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SEMI => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Comma {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Comma {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Comma {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            COMMA => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LParen {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for LParen {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for LParen {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            L_PAREN => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RParen {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for RParen {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for RParen {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            R_PAREN => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LCurly {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for LCurly {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for LCurly {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            L_CURLY => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RCurly {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for RCurly {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for RCurly {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            R_CURLY => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LBrack {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for LBrack {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for LBrack {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            L_BRACK => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RBrack {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for RBrack {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for RBrack {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            R_BRACK => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LAngle {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for LAngle {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for LAngle {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            L_ANGLE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RAngle {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for RAngle {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for RAngle {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            R_ANGLE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct At {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for At {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for At {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            AT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Pound {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Pound {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Pound {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            POUND => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Tilde {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Tilde {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Tilde {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TILDE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Question {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Question {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Question {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            QUESTION => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Dollar {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Dollar {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Dollar {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DOLLAR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Amp {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Amp {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Amp {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            AMP => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Pipe {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Pipe {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Pipe {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PIPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Plus {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Plus {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Plus {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PLUS => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Star {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Star {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Star {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            STAR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Slash {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Slash {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Slash {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SLASH => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Caret {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Caret {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Caret {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CARET => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Percent {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Percent {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Percent {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PERCENT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Underscore {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Underscore {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Underscore {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            UNDERSCORE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Dot {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Dot {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Dot {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DOT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Dotdot {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Dotdot {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Dotdot {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DOTDOT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Dotdotdot {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Dotdotdot {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Dotdotdot {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DOTDOTDOT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Dotdoteq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Dotdoteq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Dotdoteq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DOTDOTEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Colon {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Colon {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Colon {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            COLON => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Coloncolon {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Coloncolon {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Coloncolon {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            COLONCOLON => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Eq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Eq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Eq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            EQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Eqeq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Eqeq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Eqeq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            EQEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct FatArrow {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for FatArrow {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for FatArrow {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FAT_ARROW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Excl {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Excl {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Excl {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            EXCL => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Neq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Neq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Neq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            NEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Minus {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Minus {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Minus {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MINUS => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ThinArrow {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ThinArrow {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ThinArrow {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            THIN_ARROW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Lteq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Lteq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Lteq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LTEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Gteq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Gteq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Gteq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            GTEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Pluseq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Pluseq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Pluseq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PLUSEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Minuseq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Minuseq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Minuseq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MINUSEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Pipeeq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Pipeeq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Pipeeq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PIPEEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Ampeq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Ampeq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Ampeq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            AMPEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Careteq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Careteq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Careteq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CARETEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Slasheq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Slasheq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Slasheq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SLASHEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Stareq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Stareq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Stareq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            STAREQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Percenteq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Percenteq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Percenteq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PERCENTEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Ampamp {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Ampamp {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Ampamp {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            AMPAMP => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Pipepipe {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Pipepipe {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Pipepipe {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PIPEPIPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Shl {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Shl {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Shl {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SHL => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Shr {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Shr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Shr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SHR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Shleq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Shleq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Shleq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SHLEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Shreq {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Shreq {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Shreq {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SHREQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct AsKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for AsKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for AsKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            AS_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct AsyncKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for AsyncKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for AsyncKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ASYNC_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct AwaitKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for AwaitKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for AwaitKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            AWAIT_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct BoxKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for BoxKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for BoxKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BOX_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct BreakKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for BreakKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for BreakKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BREAK_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ConstKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ConstKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ConstKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CONST_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ContinueKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ContinueKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ContinueKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CONTINUE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct CrateKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for CrateKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for CrateKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CRATE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct DynKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for DynKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for DynKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DYN_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ElseKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ElseKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ElseKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ELSE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct EnumKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for EnumKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for EnumKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ENUM_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ExternKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ExternKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ExternKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            EXTERN_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct FalseKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for FalseKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for FalseKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FALSE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct FnKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for FnKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for FnKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FN_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ForKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ForKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ForKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FOR_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct IfKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for IfKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for IfKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            IF_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ImplKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ImplKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ImplKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            IMPL_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct InKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for InKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for InKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            IN_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LetKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for LetKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for LetKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LET_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LoopKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for LoopKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for LoopKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LOOP_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MacroKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for MacroKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for MacroKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MACRO_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MatchKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for MatchKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for MatchKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MATCH_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ModKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ModKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ModKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MOD_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MoveKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for MoveKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for MoveKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MOVE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MutKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for MutKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for MutKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MUT_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct PubKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for PubKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for PubKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PUB_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RefKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for RefKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for RefKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            REF_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ReturnKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ReturnKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ReturnKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RETURN_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct SelfKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for SelfKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for SelfKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SELF_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct StaticKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for StaticKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for StaticKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            STATIC_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct StructKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for StructKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for StructKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            STRUCT_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct SuperKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for SuperKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for SuperKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SUPER_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TraitKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for TraitKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for TraitKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TRAIT_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TrueKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for TrueKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for TrueKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TRUE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TryKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for TryKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for TryKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TRY_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TypeKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for TypeKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for TypeKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TYPE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct UnsafeKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for UnsafeKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for UnsafeKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            UNSAFE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct UseKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for UseKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for UseKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            USE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct WhereKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for WhereKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for WhereKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            WHERE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct WhileKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for WhileKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for WhileKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            WHILE_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct AutoKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for AutoKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for AutoKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            AUTO_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct DefaultKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for DefaultKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for DefaultKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DEFAULT_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ExistentialKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ExistentialKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ExistentialKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            EXISTENTIAL_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct UnionKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for UnionKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for UnionKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            UNION_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RawKw {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for RawKw {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for RawKw {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RAW_KW => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct IntNumber {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for IntNumber {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for IntNumber {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            INT_NUMBER => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct FloatNumber {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for FloatNumber {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for FloatNumber {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FLOAT_NUMBER => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Char {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Char {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Char {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CHAR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Byte {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Byte {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Byte {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BYTE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct String {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for String {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for String {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            STRING => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RawString {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for RawString {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for RawString {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RAW_STRING => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ByteString {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for ByteString {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for ByteString {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BYTE_STRING => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RawByteString {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for RawByteString {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for RawByteString {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RAW_BYTE_STRING => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Error {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Error {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Error {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ERROR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Ident {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Ident {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Ident {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            IDENT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Whitespace {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Whitespace {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Whitespace {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            WHITESPACE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Lifetime {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Lifetime {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Lifetime {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LIFETIME => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Comment {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Comment {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Comment {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            COMMENT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Shebang {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for Shebang {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for Shebang {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SHEBANG => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LDollar {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for LDollar {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for LDollar {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            L_DOLLAR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RDollar {
-    pub(crate) syntax: SyntaxToken,
-}
-impl std::fmt::Display for RDollar {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(&self.syntax, f)
-    }
-}
-impl AstToken for RDollar {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            R_DOLLAR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        &self.syntax
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct SourceFile {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for SourceFile {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for SourceFile {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SOURCE_FILE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::ModuleItemOwner for SourceFile {}
-impl ast::FnDefOwner for SourceFile {}
-impl ast::AttrsOwner for SourceFile {}
-impl SourceFile {
-    pub fn modules(&self) -> AstChildren<Module> {
-        support::children(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct FnDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for FnDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for FnDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FN_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for FnDef {}
-impl ast::NameOwner for FnDef {}
-impl ast::TypeParamsOwner for FnDef {}
-impl ast::DocCommentsOwner for FnDef {}
-impl ast::AttrsOwner for FnDef {}
-impl FnDef {
-    pub fn abi(&self) -> Option<Abi> {
-        support::child(&self.syntax)
-    }
-    pub fn const_kw(&self) -> Option<ConstKw> {
-        support::token(&self.syntax)
-    }
-    pub fn default_kw(&self) -> Option<DefaultKw> {
-        support::token(&self.syntax)
-    }
-    pub fn async_kw(&self) -> Option<AsyncKw> {
-        support::token(&self.syntax)
-    }
-    pub fn unsafe_kw(&self) -> Option<UnsafeKw> {
-        support::token(&self.syntax)
-    }
-    pub fn fn_kw(&self) -> Option<FnKw> {
-        support::token(&self.syntax)
-    }
-    pub fn param_list(&self) -> Option<ParamList> {
-        support::child(&self.syntax)
-    }
-    pub fn ret_type(&self) -> Option<RetType> {
-        support::child(&self.syntax)
-    }
-    pub fn body(&self) -> Option<BlockExpr> {
-        support::child(&self.syntax)
-    }
-    pub fn semi(&self) -> Option<Semi> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RetType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RetType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RetType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RET_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl RetType {
-    pub fn thin_arrow(&self) -> Option<ThinArrow> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct StructDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for StructDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for StructDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            STRUCT_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for StructDef {}
-impl ast::NameOwner for StructDef {}
-impl ast::TypeParamsOwner for StructDef {}
-impl ast::AttrsOwner for StructDef {}
-impl ast::DocCommentsOwner for StructDef {}
-impl StructDef {
-    pub fn struct_kw(&self) -> Option<StructKw> {
-        support::token(&self.syntax)
-    }
-    pub fn field_def_list(&self) -> Option<FieldDefList> {
-        support::child(&self.syntax)
-    }
-    pub fn semi(&self) -> Option<Semi> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct UnionDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for UnionDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for UnionDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            UNION_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for UnionDef {}
-impl ast::NameOwner for UnionDef {}
-impl ast::TypeParamsOwner for UnionDef {}
-impl ast::AttrsOwner for UnionDef {}
-impl ast::DocCommentsOwner for UnionDef {}
-impl UnionDef {
-    pub fn union_kw(&self) -> Option<UnionKw> {
-        support::token(&self.syntax)
-    }
-    pub fn record_field_def_list(&self) -> Option<RecordFieldDefList> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RecordFieldDefList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RecordFieldDefList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RecordFieldDefList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RECORD_FIELD_DEF_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl RecordFieldDefList {
-    pub fn l_curly(&self) -> Option<LCurly> {
-        support::token(&self.syntax)
-    }
-    pub fn fields(&self) -> AstChildren<RecordFieldDef> {
-        support::children(&self.syntax)
-    }
-    pub fn r_curly(&self) -> Option<RCurly> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RecordFieldDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RecordFieldDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RecordFieldDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RECORD_FIELD_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for RecordFieldDef {}
-impl ast::NameOwner for RecordFieldDef {}
-impl ast::AttrsOwner for RecordFieldDef {}
-impl ast::DocCommentsOwner for RecordFieldDef {}
-impl ast::TypeAscriptionOwner for RecordFieldDef {}
-impl RecordFieldDef {}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TupleFieldDefList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TupleFieldDefList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TupleFieldDefList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TUPLE_FIELD_DEF_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl TupleFieldDefList {
-    pub fn l_paren(&self) -> Option<LParen> {
-        support::token(&self.syntax)
-    }
-    pub fn fields(&self) -> AstChildren<TupleFieldDef> {
-        support::children(&self.syntax)
-    }
-    pub fn r_paren(&self) -> Option<RParen> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TupleFieldDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TupleFieldDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TupleFieldDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TUPLE_FIELD_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for TupleFieldDef {}
-impl ast::AttrsOwner for TupleFieldDef {}
-impl TupleFieldDef {
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct EnumDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for EnumDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for EnumDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ENUM_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for EnumDef {}
-impl ast::NameOwner for EnumDef {}
-impl ast::TypeParamsOwner for EnumDef {}
-impl ast::AttrsOwner for EnumDef {}
-impl ast::DocCommentsOwner for EnumDef {}
-impl EnumDef {
-    pub fn enum_kw(&self) -> Option<EnumKw> {
-        support::token(&self.syntax)
-    }
-    pub fn variant_list(&self) -> Option<EnumVariantList> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct EnumVariantList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for EnumVariantList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for EnumVariantList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ENUM_VARIANT_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl EnumVariantList {
-    pub fn l_curly(&self) -> Option<LCurly> {
-        support::token(&self.syntax)
-    }
-    pub fn variants(&self) -> AstChildren<EnumVariant> {
-        support::children(&self.syntax)
-    }
-    pub fn r_curly(&self) -> Option<RCurly> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct EnumVariant {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for EnumVariant {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for EnumVariant {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ENUM_VARIANT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for EnumVariant {}
-impl ast::NameOwner for EnumVariant {}
-impl ast::DocCommentsOwner for EnumVariant {}
-impl ast::AttrsOwner for EnumVariant {}
-impl EnumVariant {
-    pub fn field_def_list(&self) -> Option<FieldDefList> {
-        support::child(&self.syntax)
-    }
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TraitDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TraitDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TraitDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TRAIT_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for TraitDef {}
-impl ast::NameOwner for TraitDef {}
-impl ast::AttrsOwner for TraitDef {}
-impl ast::DocCommentsOwner for TraitDef {}
-impl ast::TypeParamsOwner for TraitDef {}
-impl ast::TypeBoundsOwner for TraitDef {}
-impl TraitDef {
-    pub fn unsafe_kw(&self) -> Option<UnsafeKw> {
-        support::token(&self.syntax)
-    }
-    pub fn auto_kw(&self) -> Option<AutoKw> {
-        support::token(&self.syntax)
-    }
-    pub fn trait_kw(&self) -> Option<TraitKw> {
-        support::token(&self.syntax)
-    }
-    pub fn item_list(&self) -> Option<ItemList> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Module {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Module {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Module {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MODULE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for Module {}
-impl ast::NameOwner for Module {}
-impl ast::AttrsOwner for Module {}
-impl ast::DocCommentsOwner for Module {}
-impl Module {
-    pub fn mod_kw(&self) -> Option<ModKw> {
-        support::token(&self.syntax)
-    }
-    pub fn item_list(&self) -> Option<ItemList> {
-        support::child(&self.syntax)
-    }
-    pub fn semi(&self) -> Option<Semi> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ItemList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ItemList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ItemList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ITEM_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::FnDefOwner for ItemList {}
-impl ast::ModuleItemOwner for ItemList {}
-impl ItemList {
-    pub fn l_curly(&self) -> Option<LCurly> {
-        support::token(&self.syntax)
-    }
-    pub fn impl_items(&self) -> AstChildren<ImplItem> {
-        support::children(&self.syntax)
-    }
-    pub fn r_curly(&self) -> Option<RCurly> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ConstDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ConstDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ConstDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CONST_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for ConstDef {}
-impl ast::NameOwner for ConstDef {}
-impl ast::TypeParamsOwner for ConstDef {}
-impl ast::AttrsOwner for ConstDef {}
-impl ast::DocCommentsOwner for ConstDef {}
-impl ast::TypeAscriptionOwner for ConstDef {}
-impl ConstDef {
-    pub fn default_kw(&self) -> Option<DefaultKw> {
-        support::token(&self.syntax)
-    }
-    pub fn const_kw(&self) -> Option<ConstKw> {
-        support::token(&self.syntax)
-    }
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn body(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn semi(&self) -> Option<Semi> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct StaticDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for StaticDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for StaticDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            STATIC_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for StaticDef {}
-impl ast::NameOwner for StaticDef {}
-impl ast::TypeParamsOwner for StaticDef {}
-impl ast::AttrsOwner for StaticDef {}
-impl ast::DocCommentsOwner for StaticDef {}
-impl ast::TypeAscriptionOwner for StaticDef {}
-impl StaticDef {
-    pub fn static_kw(&self) -> Option<StaticKw> {
-        support::token(&self.syntax)
-    }
-    pub fn mut_kw(&self) -> Option<MutKw> {
-        support::token(&self.syntax)
-    }
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn body(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn semi(&self) -> Option<Semi> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TypeAliasDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TypeAliasDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TypeAliasDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TYPE_ALIAS_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::VisibilityOwner for TypeAliasDef {}
-impl ast::NameOwner for TypeAliasDef {}
-impl ast::TypeParamsOwner for TypeAliasDef {}
-impl ast::AttrsOwner for TypeAliasDef {}
-impl ast::DocCommentsOwner for TypeAliasDef {}
-impl ast::TypeBoundsOwner for TypeAliasDef {}
-impl TypeAliasDef {
-    pub fn default_kw(&self) -> Option<DefaultKw> {
-        support::token(&self.syntax)
-    }
-    pub fn type_kw(&self) -> Option<TypeKw> {
-        support::token(&self.syntax)
-    }
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-    pub fn semi(&self) -> Option<Semi> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ImplDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ImplDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ImplDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            IMPL_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::TypeParamsOwner for ImplDef {}
-impl ast::AttrsOwner for ImplDef {}
-impl ImplDef {
-    pub fn default_kw(&self) -> Option<DefaultKw> {
-        support::token(&self.syntax)
-    }
-    pub fn const_kw(&self) -> Option<ConstKw> {
-        support::token(&self.syntax)
-    }
-    pub fn unsafe_kw(&self) -> Option<UnsafeKw> {
-        support::token(&self.syntax)
-    }
-    pub fn impl_kw(&self) -> Option<ImplKw> {
-        support::token(&self.syntax)
-    }
-    pub fn excl(&self) -> Option<Excl> {
-        support::token(&self.syntax)
-    }
-    pub fn for_kw(&self) -> Option<ForKw> {
-        support::token(&self.syntax)
-    }
-    pub fn item_list(&self) -> Option<ItemList> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ParenType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ParenType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ParenType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PAREN_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ParenType {
-    pub fn l_paren(&self) -> Option<LParen> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-    pub fn r_paren(&self) -> Option<RParen> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TupleType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TupleType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TupleType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TUPLE_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl TupleType {
-    pub fn l_paren(&self) -> Option<LParen> {
-        support::token(&self.syntax)
-    }
-    pub fn fields(&self) -> AstChildren<TypeRef> {
-        support::children(&self.syntax)
-    }
-    pub fn r_paren(&self) -> Option<RParen> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct NeverType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for NeverType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for NeverType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            NEVER_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl NeverType {
-    pub fn excl(&self) -> Option<Excl> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct PathType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for PathType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for PathType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PATH_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl PathType {
-    pub fn path(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct PointerType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for PointerType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for PointerType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            POINTER_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl PointerType {
-    pub fn star(&self) -> Option<Star> {
-        support::token(&self.syntax)
-    }
-    pub fn const_kw(&self) -> Option<ConstKw> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ArrayType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ArrayType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ArrayType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ARRAY_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ArrayType {
-    pub fn l_brack(&self) -> Option<LBrack> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-    pub fn semi(&self) -> Option<Semi> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn r_brack(&self) -> Option<RBrack> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct SliceType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for SliceType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for SliceType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SLICE_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl SliceType {
-    pub fn l_brack(&self) -> Option<LBrack> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-    pub fn r_brack(&self) -> Option<RBrack> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ReferenceType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ReferenceType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ReferenceType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            REFERENCE_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ReferenceType {
-    pub fn amp(&self) -> Option<Amp> {
-        support::token(&self.syntax)
-    }
-    pub fn lifetime(&self) -> Option<Lifetime> {
-        support::token(&self.syntax)
-    }
-    pub fn mut_kw(&self) -> Option<MutKw> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct PlaceholderType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for PlaceholderType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for PlaceholderType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PLACEHOLDER_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl PlaceholderType {
-    pub fn underscore(&self) -> Option<Underscore> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct FnPointerType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for FnPointerType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for FnPointerType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FN_POINTER_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl FnPointerType {
-    pub fn abi(&self) -> Option<Abi> {
-        support::child(&self.syntax)
-    }
-    pub fn unsafe_kw(&self) -> Option<UnsafeKw> {
-        support::token(&self.syntax)
-    }
-    pub fn fn_kw(&self) -> Option<FnKw> {
-        support::token(&self.syntax)
-    }
-    pub fn param_list(&self) -> Option<ParamList> {
-        support::child(&self.syntax)
-    }
-    pub fn ret_type(&self) -> Option<RetType> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ForType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ForType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ForType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FOR_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ForType {
-    pub fn for_kw(&self) -> Option<ForKw> {
-        support::token(&self.syntax)
-    }
-    pub fn type_param_list(&self) -> Option<TypeParamList> {
-        support::child(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ImplTraitType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ImplTraitType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ImplTraitType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            IMPL_TRAIT_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::TypeBoundsOwner for ImplTraitType {}
-impl ImplTraitType {
-    pub fn impl_kw(&self) -> Option<ImplKw> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct DynTraitType {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for DynTraitType {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for DynTraitType {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DYN_TRAIT_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::TypeBoundsOwner for DynTraitType {}
-impl DynTraitType {
-    pub fn dyn_kw(&self) -> Option<DynKw> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TupleExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TupleExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TupleExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TUPLE_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for TupleExpr {}
-impl TupleExpr {
-    pub fn l_paren(&self) -> Option<LParen> {
-        support::token(&self.syntax)
-    }
-    pub fn exprs(&self) -> AstChildren<Expr> {
-        support::children(&self.syntax)
-    }
-    pub fn r_paren(&self) -> Option<RParen> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ArrayExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ArrayExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ArrayExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ARRAY_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for ArrayExpr {}
-impl ArrayExpr {
-    pub fn l_brack(&self) -> Option<LBrack> {
-        support::token(&self.syntax)
-    }
-    pub fn exprs(&self) -> AstChildren<Expr> {
-        support::children(&self.syntax)
-    }
-    pub fn semi(&self) -> Option<Semi> {
-        support::token(&self.syntax)
-    }
-    pub fn r_brack(&self) -> Option<RBrack> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ParenExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ParenExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ParenExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PAREN_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for ParenExpr {}
-impl ParenExpr {
-    pub fn l_paren(&self) -> Option<LParen> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn r_paren(&self) -> Option<RParen> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct PathExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for PathExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for PathExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PATH_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl PathExpr {
-    pub fn path(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LambdaExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for LambdaExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for LambdaExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LAMBDA_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for LambdaExpr {}
-impl LambdaExpr {
-    pub fn static_kw(&self) -> Option<StaticKw> {
-        support::token(&self.syntax)
-    }
-    pub fn async_kw(&self) -> Option<AsyncKw> {
-        support::token(&self.syntax)
-    }
-    pub fn move_kw(&self) -> Option<MoveKw> {
-        support::token(&self.syntax)
-    }
-    pub fn param_list(&self) -> Option<ParamList> {
-        support::child(&self.syntax)
-    }
-    pub fn ret_type(&self) -> Option<RetType> {
-        support::child(&self.syntax)
-    }
-    pub fn body(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct IfExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for IfExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for IfExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            IF_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for IfExpr {}
-impl IfExpr {
-    pub fn if_kw(&self) -> Option<IfKw> {
-        support::token(&self.syntax)
-    }
-    pub fn condition(&self) -> Option<Condition> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LoopExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for LoopExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for LoopExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LOOP_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for LoopExpr {}
-impl ast::LoopBodyOwner for LoopExpr {}
-impl LoopExpr {
-    pub fn loop_kw(&self) -> Option<LoopKw> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TryBlockExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TryBlockExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TryBlockExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TRY_BLOCK_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for TryBlockExpr {}
-impl TryBlockExpr {
-    pub fn try_kw(&self) -> Option<TryKw> {
-        support::token(&self.syntax)
-    }
-    pub fn body(&self) -> Option<BlockExpr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ForExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ForExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ForExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FOR_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for ForExpr {}
-impl ast::LoopBodyOwner for ForExpr {}
-impl ForExpr {
-    pub fn for_kw(&self) -> Option<ForKw> {
-        support::token(&self.syntax)
-    }
-    pub fn pat(&self) -> Option<Pat> {
-        support::child(&self.syntax)
-    }
-    pub fn in_kw(&self) -> Option<InKw> {
-        support::token(&self.syntax)
-    }
-    pub fn iterable(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct WhileExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for WhileExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for WhileExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            WHILE_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for WhileExpr {}
-impl ast::LoopBodyOwner for WhileExpr {}
-impl WhileExpr {
-    pub fn while_kw(&self) -> Option<WhileKw> {
-        support::token(&self.syntax)
-    }
-    pub fn condition(&self) -> Option<Condition> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ContinueExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ContinueExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ContinueExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CONTINUE_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for ContinueExpr {}
-impl ContinueExpr {
-    pub fn continue_kw(&self) -> Option<ContinueKw> {
-        support::token(&self.syntax)
-    }
-    pub fn lifetime(&self) -> Option<Lifetime> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct BreakExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for BreakExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for BreakExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BREAK_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for BreakExpr {}
-impl BreakExpr {
-    pub fn break_kw(&self) -> Option<BreakKw> {
-        support::token(&self.syntax)
-    }
-    pub fn lifetime(&self) -> Option<Lifetime> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Label {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Label {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Label {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LABEL => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl Label {
-    pub fn lifetime(&self) -> Option<Lifetime> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct BlockExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for BlockExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for BlockExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BLOCK_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for BlockExpr {}
-impl BlockExpr {
-    pub fn label(&self) -> Option<Label> {
-        support::child(&self.syntax)
-    }
-    pub fn unsafe_kw(&self) -> Option<UnsafeKw> {
-        support::token(&self.syntax)
-    }
-    pub fn block(&self) -> Option<Block> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ReturnExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ReturnExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ReturnExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RETURN_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for ReturnExpr {}
-impl ReturnExpr {
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct CallExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for CallExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for CallExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CALL_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::ArgListOwner for CallExpr {}
-impl CallExpr {
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MethodCallExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MethodCallExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MethodCallExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            METHOD_CALL_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for MethodCallExpr {}
-impl ast::ArgListOwner for MethodCallExpr {}
-impl MethodCallExpr {
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn dot(&self) -> Option<Dot> {
-        support::token(&self.syntax)
-    }
-    pub fn name_ref(&self) -> Option<NameRef> {
-        support::child(&self.syntax)
-    }
-    pub fn type_arg_list(&self) -> Option<TypeArgList> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct IndexExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for IndexExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for IndexExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            INDEX_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for IndexExpr {}
-impl IndexExpr {
-    pub fn l_brack(&self) -> Option<LBrack> {
-        support::token(&self.syntax)
-    }
-    pub fn r_brack(&self) -> Option<RBrack> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct FieldExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for FieldExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for FieldExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FIELD_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for FieldExpr {}
-impl FieldExpr {
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn dot(&self) -> Option<Dot> {
-        support::token(&self.syntax)
-    }
-    pub fn name_ref(&self) -> Option<NameRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct AwaitExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for AwaitExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for AwaitExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            AWAIT_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for AwaitExpr {}
-impl AwaitExpr {
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn dot(&self) -> Option<Dot> {
-        support::token(&self.syntax)
-    }
-    pub fn await_kw(&self) -> Option<AwaitKw> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TryExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TryExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TryExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TRY_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for TryExpr {}
-impl TryExpr {
-    pub fn try_kw(&self) -> Option<TryKw> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct CastExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for CastExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for CastExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CAST_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for CastExpr {}
-impl CastExpr {
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn as_kw(&self) -> Option<AsKw> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RefExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RefExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RefExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            REF_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for RefExpr {}
-impl RefExpr {
-    pub fn amp(&self) -> Option<Amp> {
-        support::token(&self.syntax)
-    }
-    pub fn raw_kw(&self) -> Option<RawKw> {
-        support::token(&self.syntax)
-    }
-    pub fn mut_kw(&self) -> Option<MutKw> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct PrefixExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for PrefixExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for PrefixExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PREFIX_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for PrefixExpr {}
-impl PrefixExpr {
-    pub fn prefix_op(&self) -> Option<PrefixOp> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct BoxExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for BoxExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for BoxExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BOX_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for BoxExpr {}
-impl BoxExpr {
-    pub fn box_kw(&self) -> Option<BoxKw> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RangeExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RangeExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RangeExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RANGE_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for RangeExpr {}
-impl RangeExpr {
-    pub fn range_op(&self) -> Option<RangeOp> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct BinExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for BinExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for BinExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BIN_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for BinExpr {}
-impl BinExpr {
-    pub fn bin_op(&self) -> Option<BinOp> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Literal {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Literal {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Literal {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LITERAL => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl Literal {
-    pub fn literal_token(&self) -> Option<LiteralToken> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MatchExpr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MatchExpr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MatchExpr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MATCH_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for MatchExpr {}
-impl MatchExpr {
-    pub fn match_kw(&self) -> Option<MatchKw> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn match_arm_list(&self) -> Option<MatchArmList> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MatchArmList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MatchArmList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MatchArmList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MATCH_ARM_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for MatchArmList {}
-impl MatchArmList {
-    pub fn l_curly(&self) -> Option<LCurly> {
-        support::token(&self.syntax)
-    }
-    pub fn arms(&self) -> AstChildren<MatchArm> {
-        support::children(&self.syntax)
-    }
-    pub fn r_curly(&self) -> Option<RCurly> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MatchArm {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MatchArm {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MatchArm {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MATCH_ARM => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for MatchArm {}
-impl MatchArm {
-    pub fn pat(&self) -> Option<Pat> {
-        support::child(&self.syntax)
-    }
-    pub fn guard(&self) -> Option<MatchGuard> {
-        support::child(&self.syntax)
-    }
-    pub fn fat_arrow(&self) -> Option<FatArrow> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MatchGuard {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MatchGuard {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MatchGuard {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MATCH_GUARD => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl MatchGuard {
-    pub fn if_kw(&self) -> Option<IfKw> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RecordLit {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RecordLit {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RecordLit {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RECORD_LIT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl RecordLit {
-    pub fn path(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-    pub fn record_field_list(&self) -> Option<RecordFieldList> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RecordFieldList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RecordFieldList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RecordFieldList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RECORD_FIELD_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl RecordFieldList {
-    pub fn l_curly(&self) -> Option<LCurly> {
-        support::token(&self.syntax)
-    }
-    pub fn fields(&self) -> AstChildren<RecordField> {
-        support::children(&self.syntax)
-    }
-    pub fn dotdot(&self) -> Option<Dotdot> {
-        support::token(&self.syntax)
-    }
-    pub fn spread(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn r_curly(&self) -> Option<RCurly> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RecordField {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RecordField {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RecordField {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RECORD_FIELD => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for RecordField {}
-impl RecordField {
-    pub fn name_ref(&self) -> Option<NameRef> {
-        support::child(&self.syntax)
-    }
-    pub fn colon(&self) -> Option<Colon> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct OrPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for OrPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for OrPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            OR_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl OrPat {
-    pub fn pats(&self) -> AstChildren<Pat> {
-        support::children(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ParenPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ParenPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ParenPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PAREN_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ParenPat {
-    pub fn l_paren(&self) -> Option<LParen> {
-        support::token(&self.syntax)
-    }
-    pub fn pat(&self) -> Option<Pat> {
-        support::child(&self.syntax)
-    }
-    pub fn r_paren(&self) -> Option<RParen> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RefPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RefPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RefPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            REF_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl RefPat {
-    pub fn amp(&self) -> Option<Amp> {
-        support::token(&self.syntax)
-    }
-    pub fn mut_kw(&self) -> Option<MutKw> {
-        support::token(&self.syntax)
-    }
-    pub fn pat(&self) -> Option<Pat> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct BoxPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for BoxPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for BoxPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BOX_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl BoxPat {
-    pub fn box_kw(&self) -> Option<BoxKw> {
-        support::token(&self.syntax)
-    }
-    pub fn pat(&self) -> Option<Pat> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct BindPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for BindPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for BindPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BIND_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for BindPat {}
-impl ast::NameOwner for BindPat {}
-impl BindPat {
-    pub fn ref_kw(&self) -> Option<RefKw> {
-        support::token(&self.syntax)
-    }
-    pub fn mut_kw(&self) -> Option<MutKw> {
-        support::token(&self.syntax)
-    }
-    pub fn pat(&self) -> Option<Pat> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct PlaceholderPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for PlaceholderPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for PlaceholderPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PLACEHOLDER_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl PlaceholderPat {
-    pub fn underscore(&self) -> Option<Underscore> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct DotDotPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for DotDotPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for DotDotPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DOT_DOT_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl DotDotPat {
-    pub fn dotdot(&self) -> Option<Dotdot> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct PathPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for PathPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for PathPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PATH_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl PathPat {
-    pub fn path(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct SlicePat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for SlicePat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for SlicePat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SLICE_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl SlicePat {
-    pub fn l_brack(&self) -> Option<LBrack> {
-        support::token(&self.syntax)
-    }
-    pub fn args(&self) -> AstChildren<Pat> {
-        support::children(&self.syntax)
-    }
-    pub fn r_brack(&self) -> Option<RBrack> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RangePat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RangePat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RangePat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RANGE_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl RangePat {
-    pub fn range_separator(&self) -> Option<RangeSeparator> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LiteralPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for LiteralPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for LiteralPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LITERAL_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl LiteralPat {
-    pub fn literal(&self) -> Option<Literal> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MacroPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MacroPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MacroPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MACRO_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl MacroPat {
-    pub fn macro_call(&self) -> Option<MacroCall> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RecordPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RecordPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RecordPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RECORD_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl RecordPat {
-    pub fn record_field_pat_list(&self) -> Option<RecordFieldPatList> {
-        support::child(&self.syntax)
-    }
-    pub fn path(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RecordFieldPatList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RecordFieldPatList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RecordFieldPatList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RECORD_FIELD_PAT_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl RecordFieldPatList {
-    pub fn l_curly(&self) -> Option<LCurly> {
-        support::token(&self.syntax)
-    }
-    pub fn pats(&self) -> AstChildren<RecordInnerPat> {
-        support::children(&self.syntax)
-    }
-    pub fn record_field_pats(&self) -> AstChildren<RecordFieldPat> {
-        support::children(&self.syntax)
-    }
-    pub fn bind_pats(&self) -> AstChildren<BindPat> {
-        support::children(&self.syntax)
-    }
-    pub fn dotdot(&self) -> Option<Dotdot> {
-        support::token(&self.syntax)
-    }
-    pub fn r_curly(&self) -> Option<RCurly> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct RecordFieldPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for RecordFieldPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RecordFieldPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RECORD_FIELD_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for RecordFieldPat {}
-impl ast::NameOwner for RecordFieldPat {}
-impl RecordFieldPat {
-    pub fn colon(&self) -> Option<Colon> {
-        support::token(&self.syntax)
-    }
-    pub fn pat(&self) -> Option<Pat> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TupleStructPat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TupleStructPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TupleStructPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TUPLE_STRUCT_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl TupleStructPat {
-    pub fn path(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-    pub fn l_paren(&self) -> Option<LParen> {
-        support::token(&self.syntax)
-    }
-    pub fn args(&self) -> AstChildren<Pat> {
-        support::children(&self.syntax)
-    }
-    pub fn r_paren(&self) -> Option<RParen> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TuplePat {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TuplePat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TuplePat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TUPLE_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl TuplePat {
-    pub fn l_paren(&self) -> Option<LParen> {
-        support::token(&self.syntax)
-    }
-    pub fn args(&self) -> AstChildren<Pat> {
-        support::children(&self.syntax)
-    }
-    pub fn r_paren(&self) -> Option<RParen> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Visibility {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Visibility {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Visibility {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            VISIBILITY => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl Visibility {
-    pub fn pub_kw(&self) -> Option<PubKw> {
-        support::token(&self.syntax)
-    }
-    pub fn super_kw(&self) -> Option<SuperKw> {
-        support::token(&self.syntax)
-    }
-    pub fn self_kw(&self) -> Option<SelfKw> {
-        support::token(&self.syntax)
-    }
-    pub fn crate_kw(&self) -> Option<CrateKw> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Name {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Name {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Name {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            NAME => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl Name {
-    pub fn ident(&self) -> Option<Ident> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct NameRef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for NameRef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for NameRef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            NAME_REF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl NameRef {
-    pub fn name_ref_token(&self) -> Option<NameRefToken> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MacroCall {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MacroCall {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MacroCall {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MACRO_CALL => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::NameOwner for MacroCall {}
-impl ast::AttrsOwner for MacroCall {}
-impl ast::DocCommentsOwner for MacroCall {}
-impl MacroCall {
-    pub fn path(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-    pub fn excl(&self) -> Option<Excl> {
-        support::token(&self.syntax)
-    }
-    pub fn token_tree(&self) -> Option<TokenTree> {
-        support::child(&self.syntax)
-    }
-    pub fn semi(&self) -> Option<Semi> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Attr {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Attr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Attr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ATTR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl Attr {
-    pub fn pound(&self) -> Option<Pound> {
-        support::token(&self.syntax)
-    }
-    pub fn excl(&self) -> Option<Excl> {
-        support::token(&self.syntax)
-    }
-    pub fn l_brack(&self) -> Option<LBrack> {
-        support::token(&self.syntax)
-    }
-    pub fn path(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn input(&self) -> Option<AttrInput> {
-        support::child(&self.syntax)
-    }
-    pub fn r_brack(&self) -> Option<RBrack> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TokenTree {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TokenTree {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TokenTree {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TOKEN_TREE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl TokenTree {}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TypeParamList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TypeParamList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TypeParamList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TYPE_PARAM_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl TypeParamList {
-    pub fn l_angle(&self) -> Option<LAngle> {
-        support::token(&self.syntax)
-    }
-    pub fn generic_params(&self) -> AstChildren<GenericParam> {
-        support::children(&self.syntax)
-    }
-    pub fn type_params(&self) -> AstChildren<TypeParam> {
-        support::children(&self.syntax)
-    }
-    pub fn lifetime_params(&self) -> AstChildren<LifetimeParam> {
-        support::children(&self.syntax)
-    }
-    pub fn const_params(&self) -> AstChildren<ConstParam> {
-        support::children(&self.syntax)
-    }
-    pub fn r_angle(&self) -> Option<RAngle> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TypeParam {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TypeParam {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TypeParam {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TYPE_PARAM => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::NameOwner for TypeParam {}
-impl ast::AttrsOwner for TypeParam {}
-impl ast::TypeBoundsOwner for TypeParam {}
-impl TypeParam {
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn default_type(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ConstParam {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ConstParam {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ConstParam {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CONST_PARAM => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::NameOwner for ConstParam {}
-impl ast::AttrsOwner for ConstParam {}
-impl ast::TypeAscriptionOwner for ConstParam {}
-impl ConstParam {
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn default_val(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LifetimeParam {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for LifetimeParam {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for LifetimeParam {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LIFETIME_PARAM => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for LifetimeParam {}
-impl LifetimeParam {
-    pub fn lifetime(&self) -> Option<Lifetime> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TypeBound {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TypeBound {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TypeBound {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TYPE_BOUND => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl TypeBound {
-    pub fn lifetime(&self) -> Option<Lifetime> {
-        support::token(&self.syntax)
-    }
-    pub fn const_kw(&self) -> Option<ConstKw> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TypeBoundList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TypeBoundList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TypeBoundList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TYPE_BOUND_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl TypeBoundList {
-    pub fn bounds(&self) -> AstChildren<TypeBound> {
-        support::children(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct WherePred {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for WherePred {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for WherePred {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            WHERE_PRED => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::TypeBoundsOwner for WherePred {}
-impl WherePred {
-    pub fn lifetime(&self) -> Option<Lifetime> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct WhereClause {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for WhereClause {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for WhereClause {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            WHERE_CLAUSE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl WhereClause {
-    pub fn where_kw(&self) -> Option<WhereKw> {
-        support::token(&self.syntax)
-    }
-    pub fn predicates(&self) -> AstChildren<WherePred> {
-        support::children(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Abi {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Abi {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Abi {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ABI => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl Abi {
-    pub fn string(&self) -> Option<String> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ExprStmt {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ExprStmt {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ExprStmt {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            EXPR_STMT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for ExprStmt {}
-impl ExprStmt {
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn semi(&self) -> Option<Semi> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LetStmt {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for LetStmt {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for LetStmt {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LET_STMT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for LetStmt {}
-impl ast::TypeAscriptionOwner for LetStmt {}
-impl LetStmt {
-    pub fn let_kw(&self) -> Option<LetKw> {
-        support::token(&self.syntax)
-    }
-    pub fn pat(&self) -> Option<Pat> {
-        support::child(&self.syntax)
-    }
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn initializer(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Condition {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Condition {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Condition {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CONDITION => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl Condition {
-    pub fn let_kw(&self) -> Option<LetKw> {
-        support::token(&self.syntax)
-    }
-    pub fn pat(&self) -> Option<Pat> {
-        support::child(&self.syntax)
-    }
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Block {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Block {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Block {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            BLOCK => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for Block {}
-impl ast::ModuleItemOwner for Block {}
-impl Block {
-    pub fn l_curly(&self) -> Option<LCurly> {
-        support::token(&self.syntax)
-    }
-    pub fn statements(&self) -> AstChildren<Stmt> {
-        support::children(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-    pub fn r_curly(&self) -> Option<RCurly> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ParamList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ParamList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ParamList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PARAM_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ParamList {
-    pub fn l_paren(&self) -> Option<LParen> {
-        support::token(&self.syntax)
-    }
-    pub fn self_param(&self) -> Option<SelfParam> {
-        support::child(&self.syntax)
-    }
-    pub fn params(&self) -> AstChildren<Param> {
-        support::children(&self.syntax)
-    }
-    pub fn r_paren(&self) -> Option<RParen> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct SelfParam {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for SelfParam {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for SelfParam {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            SELF_PARAM => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::TypeAscriptionOwner for SelfParam {}
-impl ast::AttrsOwner for SelfParam {}
-impl SelfParam {
-    pub fn amp(&self) -> Option<Amp> {
-        support::token(&self.syntax)
-    }
-    pub fn lifetime(&self) -> Option<Lifetime> {
-        support::token(&self.syntax)
-    }
-    pub fn self_kw(&self) -> Option<SelfKw> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Param {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Param {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Param {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PARAM => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::TypeAscriptionOwner for Param {}
-impl ast::AttrsOwner for Param {}
-impl Param {
-    pub fn pat(&self) -> Option<Pat> {
-        support::child(&self.syntax)
-    }
-    pub fn dotdotdot(&self) -> Option<Dotdotdot> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct UseItem {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for UseItem {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for UseItem {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            USE_ITEM => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for UseItem {}
-impl ast::VisibilityOwner for UseItem {}
-impl UseItem {
-    pub fn use_kw(&self) -> Option<UseKw> {
-        support::token(&self.syntax)
-    }
-    pub fn use_tree(&self) -> Option<UseTree> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct UseTree {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for UseTree {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for UseTree {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            USE_TREE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl UseTree {
-    pub fn path(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-    pub fn star(&self) -> Option<Star> {
-        support::token(&self.syntax)
-    }
-    pub fn use_tree_list(&self) -> Option<UseTreeList> {
-        support::child(&self.syntax)
-    }
-    pub fn alias(&self) -> Option<Alias> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Alias {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Alias {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Alias {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ALIAS => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::NameOwner for Alias {}
-impl Alias {
-    pub fn as_kw(&self) -> Option<AsKw> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct UseTreeList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for UseTreeList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for UseTreeList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            USE_TREE_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl UseTreeList {
-    pub fn l_curly(&self) -> Option<LCurly> {
-        support::token(&self.syntax)
-    }
-    pub fn use_trees(&self) -> AstChildren<UseTree> {
-        support::children(&self.syntax)
-    }
-    pub fn r_curly(&self) -> Option<RCurly> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ExternCrateItem {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ExternCrateItem {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ExternCrateItem {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            EXTERN_CRATE_ITEM => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::AttrsOwner for ExternCrateItem {}
-impl ast::VisibilityOwner for ExternCrateItem {}
-impl ExternCrateItem {
-    pub fn extern_kw(&self) -> Option<ExternKw> {
-        support::token(&self.syntax)
-    }
-    pub fn crate_kw(&self) -> Option<CrateKw> {
-        support::token(&self.syntax)
-    }
-    pub fn name_ref(&self) -> Option<NameRef> {
-        support::child(&self.syntax)
-    }
-    pub fn alias(&self) -> Option<Alias> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ArgList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ArgList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ArgList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ARG_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ArgList {
-    pub fn l_paren(&self) -> Option<LParen> {
-        support::token(&self.syntax)
-    }
-    pub fn args(&self) -> AstChildren<Expr> {
-        support::children(&self.syntax)
-    }
-    pub fn r_paren(&self) -> Option<RParen> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Path {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for Path {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Path {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PATH => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl Path {
-    pub fn segment(&self) -> Option<PathSegment> {
-        support::child(&self.syntax)
-    }
-    pub fn qualifier(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct PathSegment {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for PathSegment {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for PathSegment {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PATH_SEGMENT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl PathSegment {
-    pub fn coloncolon(&self) -> Option<Coloncolon> {
-        support::token(&self.syntax)
-    }
-    pub fn l_angle(&self) -> Option<LAngle> {
-        support::token(&self.syntax)
-    }
-    pub fn name_ref(&self) -> Option<NameRef> {
-        support::child(&self.syntax)
-    }
-    pub fn type_arg_list(&self) -> Option<TypeArgList> {
-        support::child(&self.syntax)
-    }
-    pub fn param_list(&self) -> Option<ParamList> {
-        support::child(&self.syntax)
-    }
-    pub fn ret_type(&self) -> Option<RetType> {
-        support::child(&self.syntax)
-    }
-    pub fn path_type(&self) -> Option<PathType> {
-        support::child(&self.syntax)
-    }
-    pub fn r_angle(&self) -> Option<RAngle> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TypeArgList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TypeArgList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TypeArgList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TYPE_ARG_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl TypeArgList {
-    pub fn coloncolon(&self) -> Option<Coloncolon> {
-        support::token(&self.syntax)
-    }
-    pub fn l_angle(&self) -> Option<LAngle> {
-        support::token(&self.syntax)
-    }
-    pub fn generic_args(&self) -> AstChildren<GenericArg> {
-        support::children(&self.syntax)
-    }
-    pub fn type_args(&self) -> AstChildren<TypeArg> {
-        support::children(&self.syntax)
-    }
-    pub fn lifetime_args(&self) -> AstChildren<LifetimeArg> {
-        support::children(&self.syntax)
-    }
-    pub fn assoc_type_args(&self) -> AstChildren<AssocTypeArg> {
-        support::children(&self.syntax)
-    }
-    pub fn const_args(&self) -> AstChildren<ConstArg> {
-        support::children(&self.syntax)
-    }
-    pub fn r_angle(&self) -> Option<RAngle> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct TypeArg {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for TypeArg {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TypeArg {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TYPE_ARG => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl TypeArg {
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct AssocTypeArg {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for AssocTypeArg {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for AssocTypeArg {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            ASSOC_TYPE_ARG => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::TypeBoundsOwner for AssocTypeArg {}
-impl AssocTypeArg {
-    pub fn name_ref(&self) -> Option<NameRef> {
-        support::child(&self.syntax)
-    }
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn type_ref(&self) -> Option<TypeRef> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct LifetimeArg {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for LifetimeArg {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for LifetimeArg {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LIFETIME_ARG => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl LifetimeArg {
-    pub fn lifetime(&self) -> Option<Lifetime> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ConstArg {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ConstArg {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ConstArg {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            CONST_ARG => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ConstArg {
-    pub fn literal(&self) -> Option<Literal> {
-        support::child(&self.syntax)
-    }
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn block_expr(&self) -> Option<BlockExpr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MacroItems {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MacroItems {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MacroItems {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MACRO_ITEMS => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::ModuleItemOwner for MacroItems {}
-impl ast::FnDefOwner for MacroItems {}
-impl MacroItems {}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MacroStmts {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MacroStmts {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MacroStmts {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MACRO_STMTS => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl MacroStmts {
-    pub fn statements(&self) -> AstChildren<Stmt> {
-        support::children(&self.syntax)
-    }
-    pub fn expr(&self) -> Option<Expr> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ExternItemList {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ExternItemList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ExternItemList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            EXTERN_ITEM_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ast::FnDefOwner for ExternItemList {}
-impl ast::ModuleItemOwner for ExternItemList {}
-impl ExternItemList {
-    pub fn l_curly(&self) -> Option<LCurly> {
-        support::token(&self.syntax)
-    }
-    pub fn extern_items(&self) -> AstChildren<ExternItem> {
-        support::children(&self.syntax)
-    }
-    pub fn r_curly(&self) -> Option<RCurly> {
-        support::token(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ExternBlock {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for ExternBlock {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ExternBlock {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            EXTERN_BLOCK => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl ExternBlock {
-    pub fn abi(&self) -> Option<Abi> {
-        support::child(&self.syntax)
-    }
-    pub fn extern_item_list(&self) -> Option<ExternItemList> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MetaItem {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MetaItem {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MetaItem {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            META_ITEM => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl MetaItem {
-    pub fn path(&self) -> Option<Path> {
-        support::child(&self.syntax)
-    }
-    pub fn eq(&self) -> Option<Eq> {
-        support::token(&self.syntax)
-    }
-    pub fn attr_input(&self) -> Option<AttrInput> {
-        support::child(&self.syntax)
-    }
-    pub fn nested_meta_items(&self) -> AstChildren<MetaItem> {
-        support::children(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct MacroDef {
-    pub(crate) syntax: SyntaxNode,
-}
-impl std::fmt::Display for MacroDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for MacroDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MACRO_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        if Self::can_cast(syntax.kind()) {
-            Some(Self { syntax })
-        } else {
-            None
-        }
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        &self.syntax
-    }
-}
-impl MacroDef {
-    pub fn name(&self) -> Option<Name> {
-        support::child(&self.syntax)
-    }
-    pub fn token_tree(&self) -> Option<TokenTree> {
-        support::child(&self.syntax)
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum NominalDef {
-    StructDef(StructDef),
-    EnumDef(EnumDef),
-    UnionDef(UnionDef),
-}
-impl From<StructDef> for NominalDef {
-    fn from(node: StructDef) -> NominalDef {
-        NominalDef::StructDef(node)
-    }
-}
-impl From<EnumDef> for NominalDef {
-    fn from(node: EnumDef) -> NominalDef {
-        NominalDef::EnumDef(node)
-    }
-}
-impl From<UnionDef> for NominalDef {
-    fn from(node: UnionDef) -> NominalDef {
-        NominalDef::UnionDef(node)
-    }
-}
-impl std::fmt::Display for NominalDef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for NominalDef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            STRUCT_DEF | ENUM_DEF | UNION_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            STRUCT_DEF => NominalDef::StructDef(StructDef { syntax }),
-            ENUM_DEF => NominalDef::EnumDef(EnumDef { syntax }),
-            UNION_DEF => NominalDef::UnionDef(UnionDef { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            NominalDef::StructDef(it) => &it.syntax,
-            NominalDef::EnumDef(it) => &it.syntax,
-            NominalDef::UnionDef(it) => &it.syntax,
-        }
-    }
-}
-impl ast::NameOwner for NominalDef {}
-impl ast::TypeParamsOwner for NominalDef {}
-impl ast::AttrsOwner for NominalDef {}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum GenericParam {
-    LifetimeParam(LifetimeParam),
-    TypeParam(TypeParam),
-    ConstParam(ConstParam),
-}
-impl From<LifetimeParam> for GenericParam {
-    fn from(node: LifetimeParam) -> GenericParam {
-        GenericParam::LifetimeParam(node)
-    }
-}
-impl From<TypeParam> for GenericParam {
-    fn from(node: TypeParam) -> GenericParam {
-        GenericParam::TypeParam(node)
-    }
-}
-impl From<ConstParam> for GenericParam {
-    fn from(node: ConstParam) -> GenericParam {
-        GenericParam::ConstParam(node)
-    }
-}
-impl std::fmt::Display for GenericParam {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for GenericParam {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LIFETIME_PARAM | TYPE_PARAM | CONST_PARAM => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            LIFETIME_PARAM => GenericParam::LifetimeParam(LifetimeParam { syntax }),
-            TYPE_PARAM => GenericParam::TypeParam(TypeParam { syntax }),
-            CONST_PARAM => GenericParam::ConstParam(ConstParam { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            GenericParam::LifetimeParam(it) => &it.syntax,
-            GenericParam::TypeParam(it) => &it.syntax,
-            GenericParam::ConstParam(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum GenericArg {
-    LifetimeArg(LifetimeArg),
-    TypeArg(TypeArg),
-    ConstArg(ConstArg),
-    AssocTypeArg(AssocTypeArg),
-}
-impl From<LifetimeArg> for GenericArg {
-    fn from(node: LifetimeArg) -> GenericArg {
-        GenericArg::LifetimeArg(node)
-    }
-}
-impl From<TypeArg> for GenericArg {
-    fn from(node: TypeArg) -> GenericArg {
-        GenericArg::TypeArg(node)
-    }
-}
-impl From<ConstArg> for GenericArg {
-    fn from(node: ConstArg) -> GenericArg {
-        GenericArg::ConstArg(node)
-    }
-}
-impl From<AssocTypeArg> for GenericArg {
-    fn from(node: AssocTypeArg) -> GenericArg {
-        GenericArg::AssocTypeArg(node)
-    }
-}
-impl std::fmt::Display for GenericArg {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for GenericArg {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LIFETIME_ARG | TYPE_ARG | CONST_ARG | ASSOC_TYPE_ARG => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            LIFETIME_ARG => GenericArg::LifetimeArg(LifetimeArg { syntax }),
-            TYPE_ARG => GenericArg::TypeArg(TypeArg { syntax }),
-            CONST_ARG => GenericArg::ConstArg(ConstArg { syntax }),
-            ASSOC_TYPE_ARG => GenericArg::AssocTypeArg(AssocTypeArg { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            GenericArg::LifetimeArg(it) => &it.syntax,
-            GenericArg::TypeArg(it) => &it.syntax,
-            GenericArg::ConstArg(it) => &it.syntax,
-            GenericArg::AssocTypeArg(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum TypeRef {
-    ParenType(ParenType),
-    TupleType(TupleType),
-    NeverType(NeverType),
-    PathType(PathType),
-    PointerType(PointerType),
-    ArrayType(ArrayType),
-    SliceType(SliceType),
-    ReferenceType(ReferenceType),
-    PlaceholderType(PlaceholderType),
-    FnPointerType(FnPointerType),
-    ForType(ForType),
-    ImplTraitType(ImplTraitType),
-    DynTraitType(DynTraitType),
-}
-impl From<ParenType> for TypeRef {
-    fn from(node: ParenType) -> TypeRef {
-        TypeRef::ParenType(node)
-    }
-}
-impl From<TupleType> for TypeRef {
-    fn from(node: TupleType) -> TypeRef {
-        TypeRef::TupleType(node)
-    }
-}
-impl From<NeverType> for TypeRef {
-    fn from(node: NeverType) -> TypeRef {
-        TypeRef::NeverType(node)
-    }
-}
-impl From<PathType> for TypeRef {
-    fn from(node: PathType) -> TypeRef {
-        TypeRef::PathType(node)
-    }
-}
-impl From<PointerType> for TypeRef {
-    fn from(node: PointerType) -> TypeRef {
-        TypeRef::PointerType(node)
-    }
-}
-impl From<ArrayType> for TypeRef {
-    fn from(node: ArrayType) -> TypeRef {
-        TypeRef::ArrayType(node)
-    }
-}
-impl From<SliceType> for TypeRef {
-    fn from(node: SliceType) -> TypeRef {
-        TypeRef::SliceType(node)
-    }
-}
-impl From<ReferenceType> for TypeRef {
-    fn from(node: ReferenceType) -> TypeRef {
-        TypeRef::ReferenceType(node)
-    }
-}
-impl From<PlaceholderType> for TypeRef {
-    fn from(node: PlaceholderType) -> TypeRef {
-        TypeRef::PlaceholderType(node)
-    }
-}
-impl From<FnPointerType> for TypeRef {
-    fn from(node: FnPointerType) -> TypeRef {
-        TypeRef::FnPointerType(node)
-    }
-}
-impl From<ForType> for TypeRef {
-    fn from(node: ForType) -> TypeRef {
-        TypeRef::ForType(node)
-    }
-}
-impl From<ImplTraitType> for TypeRef {
-    fn from(node: ImplTraitType) -> TypeRef {
-        TypeRef::ImplTraitType(node)
-    }
-}
-impl From<DynTraitType> for TypeRef {
-    fn from(node: DynTraitType) -> TypeRef {
-        TypeRef::DynTraitType(node)
-    }
-}
-impl std::fmt::Display for TypeRef {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for TypeRef {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PAREN_TYPE | TUPLE_TYPE | NEVER_TYPE | PATH_TYPE | POINTER_TYPE | ARRAY_TYPE
-            | SLICE_TYPE | REFERENCE_TYPE | PLACEHOLDER_TYPE | FN_POINTER_TYPE | FOR_TYPE
-            | IMPL_TRAIT_TYPE | DYN_TRAIT_TYPE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            PAREN_TYPE => TypeRef::ParenType(ParenType { syntax }),
-            TUPLE_TYPE => TypeRef::TupleType(TupleType { syntax }),
-            NEVER_TYPE => TypeRef::NeverType(NeverType { syntax }),
-            PATH_TYPE => TypeRef::PathType(PathType { syntax }),
-            POINTER_TYPE => TypeRef::PointerType(PointerType { syntax }),
-            ARRAY_TYPE => TypeRef::ArrayType(ArrayType { syntax }),
-            SLICE_TYPE => TypeRef::SliceType(SliceType { syntax }),
-            REFERENCE_TYPE => TypeRef::ReferenceType(ReferenceType { syntax }),
-            PLACEHOLDER_TYPE => TypeRef::PlaceholderType(PlaceholderType { syntax }),
-            FN_POINTER_TYPE => TypeRef::FnPointerType(FnPointerType { syntax }),
-            FOR_TYPE => TypeRef::ForType(ForType { syntax }),
-            IMPL_TRAIT_TYPE => TypeRef::ImplTraitType(ImplTraitType { syntax }),
-            DYN_TRAIT_TYPE => TypeRef::DynTraitType(DynTraitType { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            TypeRef::ParenType(it) => &it.syntax,
-            TypeRef::TupleType(it) => &it.syntax,
-            TypeRef::NeverType(it) => &it.syntax,
-            TypeRef::PathType(it) => &it.syntax,
-            TypeRef::PointerType(it) => &it.syntax,
-            TypeRef::ArrayType(it) => &it.syntax,
-            TypeRef::SliceType(it) => &it.syntax,
-            TypeRef::ReferenceType(it) => &it.syntax,
-            TypeRef::PlaceholderType(it) => &it.syntax,
-            TypeRef::FnPointerType(it) => &it.syntax,
-            TypeRef::ForType(it) => &it.syntax,
-            TypeRef::ImplTraitType(it) => &it.syntax,
-            TypeRef::DynTraitType(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum ModuleItem {
-    StructDef(StructDef),
-    UnionDef(UnionDef),
-    EnumDef(EnumDef),
-    FnDef(FnDef),
-    TraitDef(TraitDef),
-    TypeAliasDef(TypeAliasDef),
-    ImplDef(ImplDef),
-    UseItem(UseItem),
-    ExternCrateItem(ExternCrateItem),
-    ConstDef(ConstDef),
-    StaticDef(StaticDef),
-    Module(Module),
-    MacroCall(MacroCall),
-    ExternBlock(ExternBlock),
-}
-impl From<StructDef> for ModuleItem {
-    fn from(node: StructDef) -> ModuleItem {
-        ModuleItem::StructDef(node)
-    }
-}
-impl From<UnionDef> for ModuleItem {
-    fn from(node: UnionDef) -> ModuleItem {
-        ModuleItem::UnionDef(node)
-    }
-}
-impl From<EnumDef> for ModuleItem {
-    fn from(node: EnumDef) -> ModuleItem {
-        ModuleItem::EnumDef(node)
-    }
-}
-impl From<FnDef> for ModuleItem {
-    fn from(node: FnDef) -> ModuleItem {
-        ModuleItem::FnDef(node)
-    }
-}
-impl From<TraitDef> for ModuleItem {
-    fn from(node: TraitDef) -> ModuleItem {
-        ModuleItem::TraitDef(node)
-    }
-}
-impl From<TypeAliasDef> for ModuleItem {
-    fn from(node: TypeAliasDef) -> ModuleItem {
-        ModuleItem::TypeAliasDef(node)
-    }
-}
-impl From<ImplDef> for ModuleItem {
-    fn from(node: ImplDef) -> ModuleItem {
-        ModuleItem::ImplDef(node)
-    }
-}
-impl From<UseItem> for ModuleItem {
-    fn from(node: UseItem) -> ModuleItem {
-        ModuleItem::UseItem(node)
-    }
-}
-impl From<ExternCrateItem> for ModuleItem {
-    fn from(node: ExternCrateItem) -> ModuleItem {
-        ModuleItem::ExternCrateItem(node)
-    }
-}
-impl From<ConstDef> for ModuleItem {
-    fn from(node: ConstDef) -> ModuleItem {
-        ModuleItem::ConstDef(node)
-    }
-}
-impl From<StaticDef> for ModuleItem {
-    fn from(node: StaticDef) -> ModuleItem {
-        ModuleItem::StaticDef(node)
-    }
-}
-impl From<Module> for ModuleItem {
-    fn from(node: Module) -> ModuleItem {
-        ModuleItem::Module(node)
-    }
-}
-impl From<MacroCall> for ModuleItem {
-    fn from(node: MacroCall) -> ModuleItem {
-        ModuleItem::MacroCall(node)
-    }
-}
-impl From<ExternBlock> for ModuleItem {
-    fn from(node: ExternBlock) -> ModuleItem {
-        ModuleItem::ExternBlock(node)
-    }
-}
-impl std::fmt::Display for ModuleItem {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ModuleItem {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            STRUCT_DEF | UNION_DEF | ENUM_DEF | FN_DEF | TRAIT_DEF | TYPE_ALIAS_DEF | IMPL_DEF
-            | USE_ITEM | EXTERN_CRATE_ITEM | CONST_DEF | STATIC_DEF | MODULE | MACRO_CALL
-            | EXTERN_BLOCK => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            STRUCT_DEF => ModuleItem::StructDef(StructDef { syntax }),
-            UNION_DEF => ModuleItem::UnionDef(UnionDef { syntax }),
-            ENUM_DEF => ModuleItem::EnumDef(EnumDef { syntax }),
-            FN_DEF => ModuleItem::FnDef(FnDef { syntax }),
-            TRAIT_DEF => ModuleItem::TraitDef(TraitDef { syntax }),
-            TYPE_ALIAS_DEF => ModuleItem::TypeAliasDef(TypeAliasDef { syntax }),
-            IMPL_DEF => ModuleItem::ImplDef(ImplDef { syntax }),
-            USE_ITEM => ModuleItem::UseItem(UseItem { syntax }),
-            EXTERN_CRATE_ITEM => ModuleItem::ExternCrateItem(ExternCrateItem { syntax }),
-            CONST_DEF => ModuleItem::ConstDef(ConstDef { syntax }),
-            STATIC_DEF => ModuleItem::StaticDef(StaticDef { syntax }),
-            MODULE => ModuleItem::Module(Module { syntax }),
-            MACRO_CALL => ModuleItem::MacroCall(MacroCall { syntax }),
-            EXTERN_BLOCK => ModuleItem::ExternBlock(ExternBlock { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            ModuleItem::StructDef(it) => &it.syntax,
-            ModuleItem::UnionDef(it) => &it.syntax,
-            ModuleItem::EnumDef(it) => &it.syntax,
-            ModuleItem::FnDef(it) => &it.syntax,
-            ModuleItem::TraitDef(it) => &it.syntax,
-            ModuleItem::TypeAliasDef(it) => &it.syntax,
-            ModuleItem::ImplDef(it) => &it.syntax,
-            ModuleItem::UseItem(it) => &it.syntax,
-            ModuleItem::ExternCrateItem(it) => &it.syntax,
-            ModuleItem::ConstDef(it) => &it.syntax,
-            ModuleItem::StaticDef(it) => &it.syntax,
-            ModuleItem::Module(it) => &it.syntax,
-            ModuleItem::MacroCall(it) => &it.syntax,
-            ModuleItem::ExternBlock(it) => &it.syntax,
-        }
-    }
-}
-impl ast::NameOwner for ModuleItem {}
-impl ast::AttrsOwner for ModuleItem {}
-impl ast::VisibilityOwner for ModuleItem {}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum ImplItem {
-    FnDef(FnDef),
-    TypeAliasDef(TypeAliasDef),
-    ConstDef(ConstDef),
-}
-impl From<FnDef> for ImplItem {
-    fn from(node: FnDef) -> ImplItem {
-        ImplItem::FnDef(node)
-    }
-}
-impl From<TypeAliasDef> for ImplItem {
-    fn from(node: TypeAliasDef) -> ImplItem {
-        ImplItem::TypeAliasDef(node)
-    }
-}
-impl From<ConstDef> for ImplItem {
-    fn from(node: ConstDef) -> ImplItem {
-        ImplItem::ConstDef(node)
-    }
-}
-impl std::fmt::Display for ImplItem {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ImplItem {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FN_DEF | TYPE_ALIAS_DEF | CONST_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            FN_DEF => ImplItem::FnDef(FnDef { syntax }),
-            TYPE_ALIAS_DEF => ImplItem::TypeAliasDef(TypeAliasDef { syntax }),
-            CONST_DEF => ImplItem::ConstDef(ConstDef { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            ImplItem::FnDef(it) => &it.syntax,
-            ImplItem::TypeAliasDef(it) => &it.syntax,
-            ImplItem::ConstDef(it) => &it.syntax,
-        }
-    }
-}
-impl ast::NameOwner for ImplItem {}
-impl ast::AttrsOwner for ImplItem {}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum ExternItem {
-    FnDef(FnDef),
-    StaticDef(StaticDef),
-}
-impl From<FnDef> for ExternItem {
-    fn from(node: FnDef) -> ExternItem {
-        ExternItem::FnDef(node)
-    }
-}
-impl From<StaticDef> for ExternItem {
-    fn from(node: StaticDef) -> ExternItem {
-        ExternItem::StaticDef(node)
-    }
-}
-impl std::fmt::Display for ExternItem {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for ExternItem {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            FN_DEF | STATIC_DEF => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            FN_DEF => ExternItem::FnDef(FnDef { syntax }),
-            STATIC_DEF => ExternItem::StaticDef(StaticDef { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            ExternItem::FnDef(it) => &it.syntax,
-            ExternItem::StaticDef(it) => &it.syntax,
-        }
-    }
-}
-impl ast::NameOwner for ExternItem {}
-impl ast::AttrsOwner for ExternItem {}
-impl ast::VisibilityOwner for ExternItem {}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum Expr {
-    TupleExpr(TupleExpr),
-    ArrayExpr(ArrayExpr),
-    ParenExpr(ParenExpr),
-    PathExpr(PathExpr),
-    LambdaExpr(LambdaExpr),
-    IfExpr(IfExpr),
-    LoopExpr(LoopExpr),
-    ForExpr(ForExpr),
-    WhileExpr(WhileExpr),
-    ContinueExpr(ContinueExpr),
-    BreakExpr(BreakExpr),
-    Label(Label),
-    BlockExpr(BlockExpr),
-    ReturnExpr(ReturnExpr),
-    MatchExpr(MatchExpr),
-    RecordLit(RecordLit),
-    CallExpr(CallExpr),
-    IndexExpr(IndexExpr),
-    MethodCallExpr(MethodCallExpr),
-    FieldExpr(FieldExpr),
-    AwaitExpr(AwaitExpr),
-    TryExpr(TryExpr),
-    TryBlockExpr(TryBlockExpr),
-    CastExpr(CastExpr),
-    RefExpr(RefExpr),
-    PrefixExpr(PrefixExpr),
-    RangeExpr(RangeExpr),
-    BinExpr(BinExpr),
-    Literal(Literal),
-    MacroCall(MacroCall),
-    BoxExpr(BoxExpr),
-}
-impl From<TupleExpr> for Expr {
-    fn from(node: TupleExpr) -> Expr {
-        Expr::TupleExpr(node)
-    }
-}
-impl From<ArrayExpr> for Expr {
-    fn from(node: ArrayExpr) -> Expr {
-        Expr::ArrayExpr(node)
-    }
-}
-impl From<ParenExpr> for Expr {
-    fn from(node: ParenExpr) -> Expr {
-        Expr::ParenExpr(node)
-    }
-}
-impl From<PathExpr> for Expr {
-    fn from(node: PathExpr) -> Expr {
-        Expr::PathExpr(node)
-    }
-}
-impl From<LambdaExpr> for Expr {
-    fn from(node: LambdaExpr) -> Expr {
-        Expr::LambdaExpr(node)
-    }
-}
-impl From<IfExpr> for Expr {
-    fn from(node: IfExpr) -> Expr {
-        Expr::IfExpr(node)
-    }
-}
-impl From<LoopExpr> for Expr {
-    fn from(node: LoopExpr) -> Expr {
-        Expr::LoopExpr(node)
-    }
-}
-impl From<ForExpr> for Expr {
-    fn from(node: ForExpr) -> Expr {
-        Expr::ForExpr(node)
-    }
-}
-impl From<WhileExpr> for Expr {
-    fn from(node: WhileExpr) -> Expr {
-        Expr::WhileExpr(node)
-    }
-}
-impl From<ContinueExpr> for Expr {
-    fn from(node: ContinueExpr) -> Expr {
-        Expr::ContinueExpr(node)
-    }
-}
-impl From<BreakExpr> for Expr {
-    fn from(node: BreakExpr) -> Expr {
-        Expr::BreakExpr(node)
-    }
-}
-impl From<Label> for Expr {
-    fn from(node: Label) -> Expr {
-        Expr::Label(node)
-    }
-}
-impl From<BlockExpr> for Expr {
-    fn from(node: BlockExpr) -> Expr {
-        Expr::BlockExpr(node)
-    }
-}
-impl From<ReturnExpr> for Expr {
-    fn from(node: ReturnExpr) -> Expr {
-        Expr::ReturnExpr(node)
-    }
-}
-impl From<MatchExpr> for Expr {
-    fn from(node: MatchExpr) -> Expr {
-        Expr::MatchExpr(node)
-    }
-}
-impl From<RecordLit> for Expr {
-    fn from(node: RecordLit) -> Expr {
-        Expr::RecordLit(node)
-    }
-}
-impl From<CallExpr> for Expr {
-    fn from(node: CallExpr) -> Expr {
-        Expr::CallExpr(node)
-    }
-}
-impl From<IndexExpr> for Expr {
-    fn from(node: IndexExpr) -> Expr {
-        Expr::IndexExpr(node)
-    }
-}
-impl From<MethodCallExpr> for Expr {
-    fn from(node: MethodCallExpr) -> Expr {
-        Expr::MethodCallExpr(node)
-    }
-}
-impl From<FieldExpr> for Expr {
-    fn from(node: FieldExpr) -> Expr {
-        Expr::FieldExpr(node)
-    }
-}
-impl From<AwaitExpr> for Expr {
-    fn from(node: AwaitExpr) -> Expr {
-        Expr::AwaitExpr(node)
-    }
-}
-impl From<TryExpr> for Expr {
-    fn from(node: TryExpr) -> Expr {
-        Expr::TryExpr(node)
-    }
-}
-impl From<TryBlockExpr> for Expr {
-    fn from(node: TryBlockExpr) -> Expr {
-        Expr::TryBlockExpr(node)
-    }
-}
-impl From<CastExpr> for Expr {
-    fn from(node: CastExpr) -> Expr {
-        Expr::CastExpr(node)
-    }
-}
-impl From<RefExpr> for Expr {
-    fn from(node: RefExpr) -> Expr {
-        Expr::RefExpr(node)
-    }
-}
-impl From<PrefixExpr> for Expr {
-    fn from(node: PrefixExpr) -> Expr {
-        Expr::PrefixExpr(node)
-    }
-}
-impl From<RangeExpr> for Expr {
-    fn from(node: RangeExpr) -> Expr {
-        Expr::RangeExpr(node)
-    }
-}
-impl From<BinExpr> for Expr {
-    fn from(node: BinExpr) -> Expr {
-        Expr::BinExpr(node)
-    }
-}
-impl From<Literal> for Expr {
-    fn from(node: Literal) -> Expr {
-        Expr::Literal(node)
-    }
-}
-impl From<MacroCall> for Expr {
-    fn from(node: MacroCall) -> Expr {
-        Expr::MacroCall(node)
-    }
-}
-impl From<BoxExpr> for Expr {
-    fn from(node: BoxExpr) -> Expr {
-        Expr::BoxExpr(node)
-    }
-}
-impl std::fmt::Display for Expr {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Expr {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            TUPLE_EXPR | ARRAY_EXPR | PAREN_EXPR | PATH_EXPR | LAMBDA_EXPR | IF_EXPR
-            | LOOP_EXPR | FOR_EXPR | WHILE_EXPR | CONTINUE_EXPR | BREAK_EXPR | LABEL
-            | BLOCK_EXPR | RETURN_EXPR | MATCH_EXPR | RECORD_LIT | CALL_EXPR | INDEX_EXPR
-            | METHOD_CALL_EXPR | FIELD_EXPR | AWAIT_EXPR | TRY_EXPR | TRY_BLOCK_EXPR
-            | CAST_EXPR | REF_EXPR | PREFIX_EXPR | RANGE_EXPR | BIN_EXPR | LITERAL | MACRO_CALL
-            | BOX_EXPR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            TUPLE_EXPR => Expr::TupleExpr(TupleExpr { syntax }),
-            ARRAY_EXPR => Expr::ArrayExpr(ArrayExpr { syntax }),
-            PAREN_EXPR => Expr::ParenExpr(ParenExpr { syntax }),
-            PATH_EXPR => Expr::PathExpr(PathExpr { syntax }),
-            LAMBDA_EXPR => Expr::LambdaExpr(LambdaExpr { syntax }),
-            IF_EXPR => Expr::IfExpr(IfExpr { syntax }),
-            LOOP_EXPR => Expr::LoopExpr(LoopExpr { syntax }),
-            FOR_EXPR => Expr::ForExpr(ForExpr { syntax }),
-            WHILE_EXPR => Expr::WhileExpr(WhileExpr { syntax }),
-            CONTINUE_EXPR => Expr::ContinueExpr(ContinueExpr { syntax }),
-            BREAK_EXPR => Expr::BreakExpr(BreakExpr { syntax }),
-            LABEL => Expr::Label(Label { syntax }),
-            BLOCK_EXPR => Expr::BlockExpr(BlockExpr { syntax }),
-            RETURN_EXPR => Expr::ReturnExpr(ReturnExpr { syntax }),
-            MATCH_EXPR => Expr::MatchExpr(MatchExpr { syntax }),
-            RECORD_LIT => Expr::RecordLit(RecordLit { syntax }),
-            CALL_EXPR => Expr::CallExpr(CallExpr { syntax }),
-            INDEX_EXPR => Expr::IndexExpr(IndexExpr { syntax }),
-            METHOD_CALL_EXPR => Expr::MethodCallExpr(MethodCallExpr { syntax }),
-            FIELD_EXPR => Expr::FieldExpr(FieldExpr { syntax }),
-            AWAIT_EXPR => Expr::AwaitExpr(AwaitExpr { syntax }),
-            TRY_EXPR => Expr::TryExpr(TryExpr { syntax }),
-            TRY_BLOCK_EXPR => Expr::TryBlockExpr(TryBlockExpr { syntax }),
-            CAST_EXPR => Expr::CastExpr(CastExpr { syntax }),
-            REF_EXPR => Expr::RefExpr(RefExpr { syntax }),
-            PREFIX_EXPR => Expr::PrefixExpr(PrefixExpr { syntax }),
-            RANGE_EXPR => Expr::RangeExpr(RangeExpr { syntax }),
-            BIN_EXPR => Expr::BinExpr(BinExpr { syntax }),
-            LITERAL => Expr::Literal(Literal { syntax }),
-            MACRO_CALL => Expr::MacroCall(MacroCall { syntax }),
-            BOX_EXPR => Expr::BoxExpr(BoxExpr { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            Expr::TupleExpr(it) => &it.syntax,
-            Expr::ArrayExpr(it) => &it.syntax,
-            Expr::ParenExpr(it) => &it.syntax,
-            Expr::PathExpr(it) => &it.syntax,
-            Expr::LambdaExpr(it) => &it.syntax,
-            Expr::IfExpr(it) => &it.syntax,
-            Expr::LoopExpr(it) => &it.syntax,
-            Expr::ForExpr(it) => &it.syntax,
-            Expr::WhileExpr(it) => &it.syntax,
-            Expr::ContinueExpr(it) => &it.syntax,
-            Expr::BreakExpr(it) => &it.syntax,
-            Expr::Label(it) => &it.syntax,
-            Expr::BlockExpr(it) => &it.syntax,
-            Expr::ReturnExpr(it) => &it.syntax,
-            Expr::MatchExpr(it) => &it.syntax,
-            Expr::RecordLit(it) => &it.syntax,
-            Expr::CallExpr(it) => &it.syntax,
-            Expr::IndexExpr(it) => &it.syntax,
-            Expr::MethodCallExpr(it) => &it.syntax,
-            Expr::FieldExpr(it) => &it.syntax,
-            Expr::AwaitExpr(it) => &it.syntax,
-            Expr::TryExpr(it) => &it.syntax,
-            Expr::TryBlockExpr(it) => &it.syntax,
-            Expr::CastExpr(it) => &it.syntax,
-            Expr::RefExpr(it) => &it.syntax,
-            Expr::PrefixExpr(it) => &it.syntax,
-            Expr::RangeExpr(it) => &it.syntax,
-            Expr::BinExpr(it) => &it.syntax,
-            Expr::Literal(it) => &it.syntax,
-            Expr::MacroCall(it) => &it.syntax,
-            Expr::BoxExpr(it) => &it.syntax,
-        }
-    }
-}
-impl ast::AttrsOwner for Expr {}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum Pat {
-    OrPat(OrPat),
-    ParenPat(ParenPat),
-    RefPat(RefPat),
-    BoxPat(BoxPat),
-    BindPat(BindPat),
-    PlaceholderPat(PlaceholderPat),
-    DotDotPat(DotDotPat),
-    PathPat(PathPat),
-    RecordPat(RecordPat),
-    TupleStructPat(TupleStructPat),
-    TuplePat(TuplePat),
-    SlicePat(SlicePat),
-    RangePat(RangePat),
-    LiteralPat(LiteralPat),
-    MacroPat(MacroPat),
-}
-impl From<OrPat> for Pat {
-    fn from(node: OrPat) -> Pat {
-        Pat::OrPat(node)
-    }
-}
-impl From<ParenPat> for Pat {
-    fn from(node: ParenPat) -> Pat {
-        Pat::ParenPat(node)
-    }
-}
-impl From<RefPat> for Pat {
-    fn from(node: RefPat) -> Pat {
-        Pat::RefPat(node)
-    }
-}
-impl From<BoxPat> for Pat {
-    fn from(node: BoxPat) -> Pat {
-        Pat::BoxPat(node)
-    }
-}
-impl From<BindPat> for Pat {
-    fn from(node: BindPat) -> Pat {
-        Pat::BindPat(node)
-    }
-}
-impl From<PlaceholderPat> for Pat {
-    fn from(node: PlaceholderPat) -> Pat {
-        Pat::PlaceholderPat(node)
-    }
-}
-impl From<DotDotPat> for Pat {
-    fn from(node: DotDotPat) -> Pat {
-        Pat::DotDotPat(node)
-    }
-}
-impl From<PathPat> for Pat {
-    fn from(node: PathPat) -> Pat {
-        Pat::PathPat(node)
-    }
-}
-impl From<RecordPat> for Pat {
-    fn from(node: RecordPat) -> Pat {
-        Pat::RecordPat(node)
-    }
-}
-impl From<TupleStructPat> for Pat {
-    fn from(node: TupleStructPat) -> Pat {
-        Pat::TupleStructPat(node)
-    }
-}
-impl From<TuplePat> for Pat {
-    fn from(node: TuplePat) -> Pat {
-        Pat::TuplePat(node)
-    }
-}
-impl From<SlicePat> for Pat {
-    fn from(node: SlicePat) -> Pat {
-        Pat::SlicePat(node)
-    }
-}
-impl From<RangePat> for Pat {
-    fn from(node: RangePat) -> Pat {
-        Pat::RangePat(node)
-    }
-}
-impl From<LiteralPat> for Pat {
-    fn from(node: LiteralPat) -> Pat {
-        Pat::LiteralPat(node)
-    }
-}
-impl From<MacroPat> for Pat {
-    fn from(node: MacroPat) -> Pat {
-        Pat::MacroPat(node)
-    }
-}
-impl std::fmt::Display for Pat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Pat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            OR_PAT | PAREN_PAT | REF_PAT | BOX_PAT | BIND_PAT | PLACEHOLDER_PAT | DOT_DOT_PAT
-            | PATH_PAT | RECORD_PAT | TUPLE_STRUCT_PAT | TUPLE_PAT | SLICE_PAT | RANGE_PAT
-            | LITERAL_PAT | MACRO_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            OR_PAT => Pat::OrPat(OrPat { syntax }),
-            PAREN_PAT => Pat::ParenPat(ParenPat { syntax }),
-            REF_PAT => Pat::RefPat(RefPat { syntax }),
-            BOX_PAT => Pat::BoxPat(BoxPat { syntax }),
-            BIND_PAT => Pat::BindPat(BindPat { syntax }),
-            PLACEHOLDER_PAT => Pat::PlaceholderPat(PlaceholderPat { syntax }),
-            DOT_DOT_PAT => Pat::DotDotPat(DotDotPat { syntax }),
-            PATH_PAT => Pat::PathPat(PathPat { syntax }),
-            RECORD_PAT => Pat::RecordPat(RecordPat { syntax }),
-            TUPLE_STRUCT_PAT => Pat::TupleStructPat(TupleStructPat { syntax }),
-            TUPLE_PAT => Pat::TuplePat(TuplePat { syntax }),
-            SLICE_PAT => Pat::SlicePat(SlicePat { syntax }),
-            RANGE_PAT => Pat::RangePat(RangePat { syntax }),
-            LITERAL_PAT => Pat::LiteralPat(LiteralPat { syntax }),
-            MACRO_PAT => Pat::MacroPat(MacroPat { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            Pat::OrPat(it) => &it.syntax,
-            Pat::ParenPat(it) => &it.syntax,
-            Pat::RefPat(it) => &it.syntax,
-            Pat::BoxPat(it) => &it.syntax,
-            Pat::BindPat(it) => &it.syntax,
-            Pat::PlaceholderPat(it) => &it.syntax,
-            Pat::DotDotPat(it) => &it.syntax,
-            Pat::PathPat(it) => &it.syntax,
-            Pat::RecordPat(it) => &it.syntax,
-            Pat::TupleStructPat(it) => &it.syntax,
-            Pat::TuplePat(it) => &it.syntax,
-            Pat::SlicePat(it) => &it.syntax,
-            Pat::RangePat(it) => &it.syntax,
-            Pat::LiteralPat(it) => &it.syntax,
-            Pat::MacroPat(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum RecordInnerPat {
-    RecordFieldPat(RecordFieldPat),
-    BindPat(BindPat),
-}
-impl From<RecordFieldPat> for RecordInnerPat {
-    fn from(node: RecordFieldPat) -> RecordInnerPat {
-        RecordInnerPat::RecordFieldPat(node)
-    }
-}
-impl From<BindPat> for RecordInnerPat {
-    fn from(node: BindPat) -> RecordInnerPat {
-        RecordInnerPat::BindPat(node)
-    }
-}
-impl std::fmt::Display for RecordInnerPat {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for RecordInnerPat {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RECORD_FIELD_PAT | BIND_PAT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            RECORD_FIELD_PAT => RecordInnerPat::RecordFieldPat(RecordFieldPat { syntax }),
-            BIND_PAT => RecordInnerPat::BindPat(BindPat { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            RecordInnerPat::RecordFieldPat(it) => &it.syntax,
-            RecordInnerPat::BindPat(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum AttrInput {
-    Literal(Literal),
-    TokenTree(TokenTree),
-}
-impl From<Literal> for AttrInput {
-    fn from(node: Literal) -> AttrInput {
-        AttrInput::Literal(node)
-    }
-}
-impl From<TokenTree> for AttrInput {
-    fn from(node: TokenTree) -> AttrInput {
-        AttrInput::TokenTree(node)
-    }
-}
-impl std::fmt::Display for AttrInput {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for AttrInput {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LITERAL | TOKEN_TREE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            LITERAL => AttrInput::Literal(Literal { syntax }),
-            TOKEN_TREE => AttrInput::TokenTree(TokenTree { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            AttrInput::Literal(it) => &it.syntax,
-            AttrInput::TokenTree(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum Stmt {
-    LetStmt(LetStmt),
-    ExprStmt(ExprStmt),
-}
-impl From<LetStmt> for Stmt {
-    fn from(node: LetStmt) -> Stmt {
-        Stmt::LetStmt(node)
-    }
-}
-impl From<ExprStmt> for Stmt {
-    fn from(node: ExprStmt) -> Stmt {
-        Stmt::ExprStmt(node)
-    }
-}
-impl std::fmt::Display for Stmt {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for Stmt {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            LET_STMT | EXPR_STMT => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            LET_STMT => Stmt::LetStmt(LetStmt { syntax }),
-            EXPR_STMT => Stmt::ExprStmt(ExprStmt { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            Stmt::LetStmt(it) => &it.syntax,
-            Stmt::ExprStmt(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum LeftDelimiter {
-    LParen(LParen),
-    LBrack(LBrack),
-    LCurly(LCurly),
-}
-impl From<LParen> for LeftDelimiter {
-    fn from(node: LParen) -> LeftDelimiter {
-        LeftDelimiter::LParen(node)
-    }
-}
-impl From<LBrack> for LeftDelimiter {
-    fn from(node: LBrack) -> LeftDelimiter {
-        LeftDelimiter::LBrack(node)
-    }
-}
-impl From<LCurly> for LeftDelimiter {
-    fn from(node: LCurly) -> LeftDelimiter {
-        LeftDelimiter::LCurly(node)
-    }
-}
-impl std::fmt::Display for LeftDelimiter {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstToken for LeftDelimiter {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            L_PAREN | L_BRACK | L_CURLY => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        let res = match syntax.kind() {
-            L_PAREN => LeftDelimiter::LParen(LParen { syntax }),
-            L_BRACK => LeftDelimiter::LBrack(LBrack { syntax }),
-            L_CURLY => LeftDelimiter::LCurly(LCurly { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        match self {
-            LeftDelimiter::LParen(it) => &it.syntax,
-            LeftDelimiter::LBrack(it) => &it.syntax,
-            LeftDelimiter::LCurly(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum RightDelimiter {
-    RParen(RParen),
-    RBrack(RBrack),
-    RCurly(RCurly),
-}
-impl From<RParen> for RightDelimiter {
-    fn from(node: RParen) -> RightDelimiter {
-        RightDelimiter::RParen(node)
-    }
-}
-impl From<RBrack> for RightDelimiter {
-    fn from(node: RBrack) -> RightDelimiter {
-        RightDelimiter::RBrack(node)
-    }
-}
-impl From<RCurly> for RightDelimiter {
-    fn from(node: RCurly) -> RightDelimiter {
-        RightDelimiter::RCurly(node)
-    }
-}
-impl std::fmt::Display for RightDelimiter {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstToken for RightDelimiter {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            R_PAREN | R_BRACK | R_CURLY => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        let res = match syntax.kind() {
-            R_PAREN => RightDelimiter::RParen(RParen { syntax }),
-            R_BRACK => RightDelimiter::RBrack(RBrack { syntax }),
-            R_CURLY => RightDelimiter::RCurly(RCurly { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        match self {
-            RightDelimiter::RParen(it) => &it.syntax,
-            RightDelimiter::RBrack(it) => &it.syntax,
-            RightDelimiter::RCurly(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum RangeSeparator {
-    Dotdot(Dotdot),
-    Dotdotdot(Dotdotdot),
-    Dotdoteq(Dotdoteq),
-}
-impl From<Dotdot> for RangeSeparator {
-    fn from(node: Dotdot) -> RangeSeparator {
-        RangeSeparator::Dotdot(node)
-    }
-}
-impl From<Dotdotdot> for RangeSeparator {
-    fn from(node: Dotdotdot) -> RangeSeparator {
-        RangeSeparator::Dotdotdot(node)
-    }
-}
-impl From<Dotdoteq> for RangeSeparator {
-    fn from(node: Dotdoteq) -> RangeSeparator {
-        RangeSeparator::Dotdoteq(node)
-    }
-}
-impl std::fmt::Display for RangeSeparator {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstToken for RangeSeparator {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DOTDOT | DOTDOTDOT | DOTDOTEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        let res = match syntax.kind() {
-            DOTDOT => RangeSeparator::Dotdot(Dotdot { syntax }),
-            DOTDOTDOT => RangeSeparator::Dotdotdot(Dotdotdot { syntax }),
-            DOTDOTEQ => RangeSeparator::Dotdoteq(Dotdoteq { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        match self {
-            RangeSeparator::Dotdot(it) => &it.syntax,
-            RangeSeparator::Dotdotdot(it) => &it.syntax,
-            RangeSeparator::Dotdoteq(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum BinOp {
-    Pipepipe(Pipepipe),
-    Ampamp(Ampamp),
-    Eqeq(Eqeq),
-    Neq(Neq),
-    Lteq(Lteq),
-    Gteq(Gteq),
-    LAngle(LAngle),
-    RAngle(RAngle),
-    Plus(Plus),
-    Star(Star),
-    Minus(Minus),
-    Slash(Slash),
-    Percent(Percent),
-    Shl(Shl),
-    Shr(Shr),
-    Caret(Caret),
-    Pipe(Pipe),
-    Amp(Amp),
-    Eq(Eq),
-    Pluseq(Pluseq),
-    Slasheq(Slasheq),
-    Stareq(Stareq),
-    Percenteq(Percenteq),
-    Shreq(Shreq),
-    Shleq(Shleq),
-    Minuseq(Minuseq),
-    Pipeeq(Pipeeq),
-    Ampeq(Ampeq),
-    Careteq(Careteq),
-}
-impl From<Pipepipe> for BinOp {
-    fn from(node: Pipepipe) -> BinOp {
-        BinOp::Pipepipe(node)
-    }
-}
-impl From<Ampamp> for BinOp {
-    fn from(node: Ampamp) -> BinOp {
-        BinOp::Ampamp(node)
-    }
-}
-impl From<Eqeq> for BinOp {
-    fn from(node: Eqeq) -> BinOp {
-        BinOp::Eqeq(node)
-    }
-}
-impl From<Neq> for BinOp {
-    fn from(node: Neq) -> BinOp {
-        BinOp::Neq(node)
-    }
-}
-impl From<Lteq> for BinOp {
-    fn from(node: Lteq) -> BinOp {
-        BinOp::Lteq(node)
-    }
-}
-impl From<Gteq> for BinOp {
-    fn from(node: Gteq) -> BinOp {
-        BinOp::Gteq(node)
-    }
-}
-impl From<LAngle> for BinOp {
-    fn from(node: LAngle) -> BinOp {
-        BinOp::LAngle(node)
-    }
-}
-impl From<RAngle> for BinOp {
-    fn from(node: RAngle) -> BinOp {
-        BinOp::RAngle(node)
-    }
-}
-impl From<Plus> for BinOp {
-    fn from(node: Plus) -> BinOp {
-        BinOp::Plus(node)
-    }
-}
-impl From<Star> for BinOp {
-    fn from(node: Star) -> BinOp {
-        BinOp::Star(node)
-    }
-}
-impl From<Minus> for BinOp {
-    fn from(node: Minus) -> BinOp {
-        BinOp::Minus(node)
-    }
-}
-impl From<Slash> for BinOp {
-    fn from(node: Slash) -> BinOp {
-        BinOp::Slash(node)
-    }
-}
-impl From<Percent> for BinOp {
-    fn from(node: Percent) -> BinOp {
-        BinOp::Percent(node)
-    }
-}
-impl From<Shl> for BinOp {
-    fn from(node: Shl) -> BinOp {
-        BinOp::Shl(node)
-    }
-}
-impl From<Shr> for BinOp {
-    fn from(node: Shr) -> BinOp {
-        BinOp::Shr(node)
-    }
-}
-impl From<Caret> for BinOp {
-    fn from(node: Caret) -> BinOp {
-        BinOp::Caret(node)
-    }
-}
-impl From<Pipe> for BinOp {
-    fn from(node: Pipe) -> BinOp {
-        BinOp::Pipe(node)
-    }
-}
-impl From<Amp> for BinOp {
-    fn from(node: Amp) -> BinOp {
-        BinOp::Amp(node)
-    }
-}
-impl From<Eq> for BinOp {
-    fn from(node: Eq) -> BinOp {
-        BinOp::Eq(node)
-    }
-}
-impl From<Pluseq> for BinOp {
-    fn from(node: Pluseq) -> BinOp {
-        BinOp::Pluseq(node)
-    }
-}
-impl From<Slasheq> for BinOp {
-    fn from(node: Slasheq) -> BinOp {
-        BinOp::Slasheq(node)
-    }
-}
-impl From<Stareq> for BinOp {
-    fn from(node: Stareq) -> BinOp {
-        BinOp::Stareq(node)
-    }
-}
-impl From<Percenteq> for BinOp {
-    fn from(node: Percenteq) -> BinOp {
-        BinOp::Percenteq(node)
-    }
-}
-impl From<Shreq> for BinOp {
-    fn from(node: Shreq) -> BinOp {
-        BinOp::Shreq(node)
-    }
-}
-impl From<Shleq> for BinOp {
-    fn from(node: Shleq) -> BinOp {
-        BinOp::Shleq(node)
-    }
-}
-impl From<Minuseq> for BinOp {
-    fn from(node: Minuseq) -> BinOp {
-        BinOp::Minuseq(node)
-    }
-}
-impl From<Pipeeq> for BinOp {
-    fn from(node: Pipeeq) -> BinOp {
-        BinOp::Pipeeq(node)
-    }
-}
-impl From<Ampeq> for BinOp {
-    fn from(node: Ampeq) -> BinOp {
-        BinOp::Ampeq(node)
-    }
-}
-impl From<Careteq> for BinOp {
-    fn from(node: Careteq) -> BinOp {
-        BinOp::Careteq(node)
-    }
-}
-impl std::fmt::Display for BinOp {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstToken for BinOp {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            PIPEPIPE | AMPAMP | EQEQ | NEQ | LTEQ | GTEQ | L_ANGLE | R_ANGLE | PLUS | STAR
-            | MINUS | SLASH | PERCENT | SHL | SHR | CARET | PIPE | AMP | EQ | PLUSEQ | SLASHEQ
-            | STAREQ | PERCENTEQ | SHREQ | SHLEQ | MINUSEQ | PIPEEQ | AMPEQ | CARETEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        let res = match syntax.kind() {
-            PIPEPIPE => BinOp::Pipepipe(Pipepipe { syntax }),
-            AMPAMP => BinOp::Ampamp(Ampamp { syntax }),
-            EQEQ => BinOp::Eqeq(Eqeq { syntax }),
-            NEQ => BinOp::Neq(Neq { syntax }),
-            LTEQ => BinOp::Lteq(Lteq { syntax }),
-            GTEQ => BinOp::Gteq(Gteq { syntax }),
-            L_ANGLE => BinOp::LAngle(LAngle { syntax }),
-            R_ANGLE => BinOp::RAngle(RAngle { syntax }),
-            PLUS => BinOp::Plus(Plus { syntax }),
-            STAR => BinOp::Star(Star { syntax }),
-            MINUS => BinOp::Minus(Minus { syntax }),
-            SLASH => BinOp::Slash(Slash { syntax }),
-            PERCENT => BinOp::Percent(Percent { syntax }),
-            SHL => BinOp::Shl(Shl { syntax }),
-            SHR => BinOp::Shr(Shr { syntax }),
-            CARET => BinOp::Caret(Caret { syntax }),
-            PIPE => BinOp::Pipe(Pipe { syntax }),
-            AMP => BinOp::Amp(Amp { syntax }),
-            EQ => BinOp::Eq(Eq { syntax }),
-            PLUSEQ => BinOp::Pluseq(Pluseq { syntax }),
-            SLASHEQ => BinOp::Slasheq(Slasheq { syntax }),
-            STAREQ => BinOp::Stareq(Stareq { syntax }),
-            PERCENTEQ => BinOp::Percenteq(Percenteq { syntax }),
-            SHREQ => BinOp::Shreq(Shreq { syntax }),
-            SHLEQ => BinOp::Shleq(Shleq { syntax }),
-            MINUSEQ => BinOp::Minuseq(Minuseq { syntax }),
-            PIPEEQ => BinOp::Pipeeq(Pipeeq { syntax }),
-            AMPEQ => BinOp::Ampeq(Ampeq { syntax }),
-            CARETEQ => BinOp::Careteq(Careteq { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        match self {
-            BinOp::Pipepipe(it) => &it.syntax,
-            BinOp::Ampamp(it) => &it.syntax,
-            BinOp::Eqeq(it) => &it.syntax,
-            BinOp::Neq(it) => &it.syntax,
-            BinOp::Lteq(it) => &it.syntax,
-            BinOp::Gteq(it) => &it.syntax,
-            BinOp::LAngle(it) => &it.syntax,
-            BinOp::RAngle(it) => &it.syntax,
-            BinOp::Plus(it) => &it.syntax,
-            BinOp::Star(it) => &it.syntax,
-            BinOp::Minus(it) => &it.syntax,
-            BinOp::Slash(it) => &it.syntax,
-            BinOp::Percent(it) => &it.syntax,
-            BinOp::Shl(it) => &it.syntax,
-            BinOp::Shr(it) => &it.syntax,
-            BinOp::Caret(it) => &it.syntax,
-            BinOp::Pipe(it) => &it.syntax,
-            BinOp::Amp(it) => &it.syntax,
-            BinOp::Eq(it) => &it.syntax,
-            BinOp::Pluseq(it) => &it.syntax,
-            BinOp::Slasheq(it) => &it.syntax,
-            BinOp::Stareq(it) => &it.syntax,
-            BinOp::Percenteq(it) => &it.syntax,
-            BinOp::Shreq(it) => &it.syntax,
-            BinOp::Shleq(it) => &it.syntax,
-            BinOp::Minuseq(it) => &it.syntax,
-            BinOp::Pipeeq(it) => &it.syntax,
-            BinOp::Ampeq(it) => &it.syntax,
-            BinOp::Careteq(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum PrefixOp {
-    Minus(Minus),
-    Excl(Excl),
-    Star(Star),
-}
-impl From<Minus> for PrefixOp {
-    fn from(node: Minus) -> PrefixOp {
-        PrefixOp::Minus(node)
-    }
-}
-impl From<Excl> for PrefixOp {
-    fn from(node: Excl) -> PrefixOp {
-        PrefixOp::Excl(node)
-    }
-}
-impl From<Star> for PrefixOp {
-    fn from(node: Star) -> PrefixOp {
-        PrefixOp::Star(node)
-    }
-}
-impl std::fmt::Display for PrefixOp {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstToken for PrefixOp {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            MINUS | EXCL | STAR => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        let res = match syntax.kind() {
-            MINUS => PrefixOp::Minus(Minus { syntax }),
-            EXCL => PrefixOp::Excl(Excl { syntax }),
-            STAR => PrefixOp::Star(Star { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        match self {
-            PrefixOp::Minus(it) => &it.syntax,
-            PrefixOp::Excl(it) => &it.syntax,
-            PrefixOp::Star(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum RangeOp {
-    Dotdot(Dotdot),
-    Dotdoteq(Dotdoteq),
-}
-impl From<Dotdot> for RangeOp {
-    fn from(node: Dotdot) -> RangeOp {
-        RangeOp::Dotdot(node)
-    }
-}
-impl From<Dotdoteq> for RangeOp {
-    fn from(node: Dotdoteq) -> RangeOp {
-        RangeOp::Dotdoteq(node)
-    }
-}
-impl std::fmt::Display for RangeOp {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstToken for RangeOp {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            DOTDOT | DOTDOTEQ => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        let res = match syntax.kind() {
-            DOTDOT => RangeOp::Dotdot(Dotdot { syntax }),
-            DOTDOTEQ => RangeOp::Dotdoteq(Dotdoteq { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        match self {
-            RangeOp::Dotdot(it) => &it.syntax,
-            RangeOp::Dotdoteq(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum LiteralToken {
-    IntNumber(IntNumber),
-    FloatNumber(FloatNumber),
-    String(String),
-    RawString(RawString),
-    TrueKw(TrueKw),
-    FalseKw(FalseKw),
-    ByteString(ByteString),
-    RawByteString(RawByteString),
-    Char(Char),
-    Byte(Byte),
-}
-impl From<IntNumber> for LiteralToken {
-    fn from(node: IntNumber) -> LiteralToken {
-        LiteralToken::IntNumber(node)
-    }
-}
-impl From<FloatNumber> for LiteralToken {
-    fn from(node: FloatNumber) -> LiteralToken {
-        LiteralToken::FloatNumber(node)
-    }
-}
-impl From<String> for LiteralToken {
-    fn from(node: String) -> LiteralToken {
-        LiteralToken::String(node)
-    }
-}
-impl From<RawString> for LiteralToken {
-    fn from(node: RawString) -> LiteralToken {
-        LiteralToken::RawString(node)
-    }
-}
-impl From<TrueKw> for LiteralToken {
-    fn from(node: TrueKw) -> LiteralToken {
-        LiteralToken::TrueKw(node)
-    }
-}
-impl From<FalseKw> for LiteralToken {
-    fn from(node: FalseKw) -> LiteralToken {
-        LiteralToken::FalseKw(node)
-    }
-}
-impl From<ByteString> for LiteralToken {
-    fn from(node: ByteString) -> LiteralToken {
-        LiteralToken::ByteString(node)
-    }
-}
-impl From<RawByteString> for LiteralToken {
-    fn from(node: RawByteString) -> LiteralToken {
-        LiteralToken::RawByteString(node)
-    }
-}
-impl From<Char> for LiteralToken {
-    fn from(node: Char) -> LiteralToken {
-        LiteralToken::Char(node)
-    }
-}
-impl From<Byte> for LiteralToken {
-    fn from(node: Byte) -> LiteralToken {
-        LiteralToken::Byte(node)
-    }
-}
-impl std::fmt::Display for LiteralToken {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstToken for LiteralToken {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            INT_NUMBER | FLOAT_NUMBER | STRING | RAW_STRING | TRUE_KW | FALSE_KW | BYTE_STRING
-            | RAW_BYTE_STRING | CHAR | BYTE => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        let res = match syntax.kind() {
-            INT_NUMBER => LiteralToken::IntNumber(IntNumber { syntax }),
-            FLOAT_NUMBER => LiteralToken::FloatNumber(FloatNumber { syntax }),
-            STRING => LiteralToken::String(String { syntax }),
-            RAW_STRING => LiteralToken::RawString(RawString { syntax }),
-            TRUE_KW => LiteralToken::TrueKw(TrueKw { syntax }),
-            FALSE_KW => LiteralToken::FalseKw(FalseKw { syntax }),
-            BYTE_STRING => LiteralToken::ByteString(ByteString { syntax }),
-            RAW_BYTE_STRING => LiteralToken::RawByteString(RawByteString { syntax }),
-            CHAR => LiteralToken::Char(Char { syntax }),
-            BYTE => LiteralToken::Byte(Byte { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        match self {
-            LiteralToken::IntNumber(it) => &it.syntax,
-            LiteralToken::FloatNumber(it) => &it.syntax,
-            LiteralToken::String(it) => &it.syntax,
-            LiteralToken::RawString(it) => &it.syntax,
-            LiteralToken::TrueKw(it) => &it.syntax,
-            LiteralToken::FalseKw(it) => &it.syntax,
-            LiteralToken::ByteString(it) => &it.syntax,
-            LiteralToken::RawByteString(it) => &it.syntax,
-            LiteralToken::Char(it) => &it.syntax,
-            LiteralToken::Byte(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum NameRefToken {
-    Ident(Ident),
-    IntNumber(IntNumber),
-}
-impl From<Ident> for NameRefToken {
-    fn from(node: Ident) -> NameRefToken {
-        NameRefToken::Ident(node)
-    }
-}
-impl From<IntNumber> for NameRefToken {
-    fn from(node: IntNumber) -> NameRefToken {
-        NameRefToken::IntNumber(node)
-    }
-}
-impl std::fmt::Display for NameRefToken {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstToken for NameRefToken {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            IDENT | INT_NUMBER => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxToken) -> Option<Self> {
-        let res = match syntax.kind() {
-            IDENT => NameRefToken::Ident(Ident { syntax }),
-            INT_NUMBER => NameRefToken::IntNumber(IntNumber { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxToken {
-        match self {
-            NameRefToken::Ident(it) => &it.syntax,
-            NameRefToken::IntNumber(it) => &it.syntax,
-        }
-    }
-}
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum FieldDefList {
-    RecordFieldDefList(RecordFieldDefList),
-    TupleFieldDefList(TupleFieldDefList),
-}
-impl From<RecordFieldDefList> for FieldDefList {
-    fn from(node: RecordFieldDefList) -> FieldDefList {
-        FieldDefList::RecordFieldDefList(node)
-    }
-}
-impl From<TupleFieldDefList> for FieldDefList {
-    fn from(node: TupleFieldDefList) -> FieldDefList {
-        FieldDefList::TupleFieldDefList(node)
-    }
-}
-impl std::fmt::Display for FieldDefList {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        std::fmt::Display::fmt(self.syntax(), f)
-    }
-}
-impl AstNode for FieldDefList {
-    fn can_cast(kind: SyntaxKind) -> bool {
-        match kind {
-            RECORD_FIELD_DEF_LIST | TUPLE_FIELD_DEF_LIST => true,
-            _ => false,
-        }
-    }
-    fn cast(syntax: SyntaxNode) -> Option<Self> {
-        let res = match syntax.kind() {
-            RECORD_FIELD_DEF_LIST => {
-                FieldDefList::RecordFieldDefList(RecordFieldDefList { syntax })
-            }
-            TUPLE_FIELD_DEF_LIST => FieldDefList::TupleFieldDefList(TupleFieldDefList { syntax }),
-            _ => return None,
-        };
-        Some(res)
-    }
-    fn syntax(&self) -> &SyntaxNode {
-        match self {
-            FieldDefList::RecordFieldDefList(it) => &it.syntax,
-            FieldDefList::TupleFieldDefList(it) => &it.syntax,
-        }
-    }
-}
+pub(super) mod nodes;
-- 
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