From a1c187eef3ba08076aedb5154929f7eda8d1b424 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Wed, 12 Aug 2020 18:26:51 +0200
Subject: Rename ra_syntax -> syntax

---
 crates/ra_syntax/src/ptr.rs | 105 --------------------------------------------
 1 file changed, 105 deletions(-)
 delete mode 100644 crates/ra_syntax/src/ptr.rs

(limited to 'crates/ra_syntax/src/ptr.rs')

diff --git a/crates/ra_syntax/src/ptr.rs b/crates/ra_syntax/src/ptr.rs
deleted file mode 100644
index ca7957747..000000000
--- a/crates/ra_syntax/src/ptr.rs
+++ /dev/null
@@ -1,105 +0,0 @@
-//! FIXME: write short doc here
-
-use std::{
-    hash::{Hash, Hasher},
-    iter::successors,
-    marker::PhantomData,
-};
-
-use crate::{AstNode, SyntaxKind, SyntaxNode, TextRange};
-
-/// A pointer to a syntax node inside a file. It can be used to remember a
-/// specific node across reparses of the same file.
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct SyntaxNodePtr {
-    pub(crate) range: TextRange,
-    kind: SyntaxKind,
-}
-
-impl SyntaxNodePtr {
-    pub fn new(node: &SyntaxNode) -> SyntaxNodePtr {
-        SyntaxNodePtr { range: node.text_range(), kind: node.kind() }
-    }
-
-    pub fn to_node(&self, root: &SyntaxNode) -> SyntaxNode {
-        assert!(root.parent().is_none());
-        successors(Some(root.clone()), |node| {
-            node.children().find(|it| it.text_range().contains_range(self.range))
-        })
-        .find(|it| it.text_range() == self.range && it.kind() == self.kind)
-        .unwrap_or_else(|| panic!("can't resolve local ptr to SyntaxNode: {:?}", self))
-    }
-
-    pub fn cast<N: AstNode>(self) -> Option<AstPtr<N>> {
-        if !N::can_cast(self.kind) {
-            return None;
-        }
-        Some(AstPtr { raw: self, _ty: PhantomData })
-    }
-}
-
-/// Like `SyntaxNodePtr`, but remembers the type of node
-#[derive(Debug)]
-pub struct AstPtr<N: AstNode> {
-    raw: SyntaxNodePtr,
-    _ty: PhantomData<fn() -> N>,
-}
-
-impl<N: AstNode> Clone for AstPtr<N> {
-    fn clone(&self) -> AstPtr<N> {
-        AstPtr { raw: self.raw.clone(), _ty: PhantomData }
-    }
-}
-
-impl<N: AstNode> Eq for AstPtr<N> {}
-
-impl<N: AstNode> PartialEq for AstPtr<N> {
-    fn eq(&self, other: &AstPtr<N>) -> bool {
-        self.raw == other.raw
-    }
-}
-
-impl<N: AstNode> Hash for AstPtr<N> {
-    fn hash<H: Hasher>(&self, state: &mut H) {
-        self.raw.hash(state)
-    }
-}
-
-impl<N: AstNode> AstPtr<N> {
-    pub fn new(node: &N) -> AstPtr<N> {
-        AstPtr { raw: SyntaxNodePtr::new(node.syntax()), _ty: PhantomData }
-    }
-
-    pub fn to_node(&self, root: &SyntaxNode) -> N {
-        let syntax_node = self.raw.to_node(root);
-        N::cast(syntax_node).unwrap()
-    }
-
-    pub fn syntax_node_ptr(&self) -> SyntaxNodePtr {
-        self.raw.clone()
-    }
-
-    pub fn cast<U: AstNode>(self) -> Option<AstPtr<U>> {
-        if !U::can_cast(self.raw.kind) {
-            return None;
-        }
-        Some(AstPtr { raw: self.raw, _ty: PhantomData })
-    }
-}
-
-impl<N: AstNode> From<AstPtr<N>> for SyntaxNodePtr {
-    fn from(ptr: AstPtr<N>) -> SyntaxNodePtr {
-        ptr.raw
-    }
-}
-
-#[test]
-fn test_local_syntax_ptr() {
-    use crate::{ast, AstNode, SourceFile};
-
-    let file = SourceFile::parse("struct Foo { f: u32, }").ok().unwrap();
-    let field = file.syntax().descendants().find_map(ast::RecordField::cast).unwrap();
-    let ptr = SyntaxNodePtr::new(field.syntax());
-    let field_syntax = ptr.to_node(file.syntax());
-    assert_eq!(field.syntax(), &field_syntax);
-}
-- 
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