Simpler acessors for keywords

2 files changed, 73 insertions, 983 deletions

diff --git a/crates/ra_syntax/src/ast/generated/nodes.rs b/crates/ra_syntax/src/ast/generated/nodes.rs
index 3b820507d..20f663046 100644
--- a/crates/ra_syntax/src/ast/generated/nodes.rs
+++ b/crates/ra_syntax/src/ast/generated/nodes.rs
@@ -4,7 +4,7 @@ use super::tokens::*;
 use crate::{
     ast::{self, support, AstChildren, AstNode},
     SyntaxKind::{self, *},
-    SyntaxNode,
+    SyntaxNode, SyntaxToken,
 };
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct SourceFile {
@@ -48,11 +48,11 @@ 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_token(&self) -> Option<ConstKw> { support::token(&self.syntax) }
-    pub fn default_kw_token(&self) -> Option<DefaultKw> { support::token(&self.syntax) }
-    pub fn async_kw_token(&self) -> Option<AsyncKw> { support::token(&self.syntax) }
-    pub fn unsafe_kw_token(&self) -> Option<UnsafeKw> { support::token(&self.syntax) }
-    pub fn fn_kw_token(&self) -> Option<FnKw> { support::token(&self.syntax) }
+    pub fn const_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, CONST_KW) }
+    pub fn default_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, DEFAULT_KW) }
+    pub fn async_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, ASYNC_KW) }
+    pub fn unsafe_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, UNSAFE_KW) }
+    pub fn fn_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, FN_KW) }
     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) }
@@ -98,7 +98,7 @@ impl ast::TypeParamsOwner for StructDef {}
 impl ast::AttrsOwner for StructDef {}
 impl ast::DocCommentsOwner for StructDef {}
 impl StructDef {
-    pub fn struct_kw_token(&self) -> Option<StructKw> { support::token(&self.syntax) }
+    pub fn struct_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, STRUCT_KW) }
     pub fn field_def_list(&self) -> Option<FieldDefList> { support::child(&self.syntax) }
     pub fn semi_token(&self) -> Option<Semi> { support::token(&self.syntax) }
 }
@@ -123,7 +123,7 @@ impl ast::TypeParamsOwner for UnionDef {}
 impl ast::AttrsOwner for UnionDef {}
 impl ast::DocCommentsOwner for UnionDef {}
 impl UnionDef {
-    pub fn union_kw_token(&self) -> Option<UnionKw> { support::token(&self.syntax) }
+    pub fn union_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, UNION_KW) }
     pub fn record_field_def_list(&self) -> Option<RecordFieldDefList> {
         support::child(&self.syntax)
     }
@@ -230,7 +230,7 @@ impl ast::TypeParamsOwner for EnumDef {}
 impl ast::AttrsOwner for EnumDef {}
 impl ast::DocCommentsOwner for EnumDef {}
 impl EnumDef {
-    pub fn enum_kw_token(&self) -> Option<EnumKw> { support::token(&self.syntax) }
+    pub fn enum_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, ENUM_KW) }
     pub fn variant_list(&self) -> Option<EnumVariantList> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -299,9 +299,9 @@ impl ast::DocCommentsOwner for TraitDef {}
 impl ast::TypeParamsOwner for TraitDef {}
 impl ast::TypeBoundsOwner for TraitDef {}
 impl TraitDef {
-    pub fn unsafe_kw_token(&self) -> Option<UnsafeKw> { support::token(&self.syntax) }
-    pub fn auto_kw_token(&self) -> Option<AutoKw> { support::token(&self.syntax) }
-    pub fn trait_kw_token(&self) -> Option<TraitKw> { support::token(&self.syntax) }
+    pub fn unsafe_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, UNSAFE_KW) }
+    pub fn auto_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, AUTO_KW) }
+    pub fn trait_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, TRAIT_KW) }
     pub fn item_list(&self) -> Option<ItemList> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -324,7 +324,7 @@ impl ast::NameOwner for Module {}
 impl ast::AttrsOwner for Module {}
 impl ast::DocCommentsOwner for Module {}
 impl Module {
-    pub fn mod_kw_token(&self) -> Option<ModKw> { support::token(&self.syntax) }
+    pub fn mod_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, MOD_KW) }
     pub fn item_list(&self) -> Option<ItemList> { support::child(&self.syntax) }
     pub fn semi_token(&self) -> Option<Semi> { support::token(&self.syntax) }
 }
@@ -371,8 +371,8 @@ impl ast::AttrsOwner for ConstDef {}
 impl ast::DocCommentsOwner for ConstDef {}
 impl ast::TypeAscriptionOwner for ConstDef {}
 impl ConstDef {
-    pub fn default_kw_token(&self) -> Option<DefaultKw> { support::token(&self.syntax) }
-    pub fn const_kw_token(&self) -> Option<ConstKw> { support::token(&self.syntax) }
+    pub fn default_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, DEFAULT_KW) }
+    pub fn const_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, CONST_KW) }
     pub fn eq_token(&self) -> Option<Eq> { support::token(&self.syntax) }
     pub fn body(&self) -> Option<Expr> { support::child(&self.syntax) }
     pub fn semi_token(&self) -> Option<Semi> { support::token(&self.syntax) }
@@ -399,8 +399,8 @@ impl ast::AttrsOwner for StaticDef {}
 impl ast::DocCommentsOwner for StaticDef {}
 impl ast::TypeAscriptionOwner for StaticDef {}
 impl StaticDef {
-    pub fn static_kw_token(&self) -> Option<StaticKw> { support::token(&self.syntax) }
-    pub fn mut_kw_token(&self) -> Option<MutKw> { support::token(&self.syntax) }
+    pub fn static_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, STATIC_KW) }
+    pub fn mut_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, MUT_KW) }
     pub fn eq_token(&self) -> Option<Eq> { support::token(&self.syntax) }
     pub fn body(&self) -> Option<Expr> { support::child(&self.syntax) }
     pub fn semi_token(&self) -> Option<Semi> { support::token(&self.syntax) }
@@ -427,8 +427,8 @@ impl ast::AttrsOwner for TypeAliasDef {}
 impl ast::DocCommentsOwner for TypeAliasDef {}
 impl ast::TypeBoundsOwner for TypeAliasDef {}
 impl TypeAliasDef {
-    pub fn default_kw_token(&self) -> Option<DefaultKw> { support::token(&self.syntax) }
-    pub fn type_kw_token(&self) -> Option<TypeKw> { support::token(&self.syntax) }
+    pub fn default_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, DEFAULT_KW) }
+    pub fn type_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, TYPE_KW) }
     pub fn eq_token(&self) -> Option<Eq> { support::token(&self.syntax) }
     pub fn type_ref(&self) -> Option<TypeRef> { support::child(&self.syntax) }
     pub fn semi_token(&self) -> Option<Semi> { support::token(&self.syntax) }
@@ -451,12 +451,12 @@ impl AstNode for ImplDef {
 impl ast::TypeParamsOwner for ImplDef {}
 impl ast::AttrsOwner for ImplDef {}
 impl ImplDef {
-    pub fn default_kw_token(&self) -> Option<DefaultKw> { support::token(&self.syntax) }
-    pub fn const_kw_token(&self) -> Option<ConstKw> { support::token(&self.syntax) }
-    pub fn unsafe_kw_token(&self) -> Option<UnsafeKw> { support::token(&self.syntax) }
-    pub fn impl_kw_token(&self) -> Option<ImplKw> { support::token(&self.syntax) }
+    pub fn default_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, DEFAULT_KW) }
+    pub fn const_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, CONST_KW) }
+    pub fn unsafe_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, UNSAFE_KW) }
+    pub fn impl_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, IMPL_KW) }
     pub fn excl_token(&self) -> Option<Excl> { support::token(&self.syntax) }
-    pub fn for_kw_token(&self) -> Option<ForKw> { support::token(&self.syntax) }
+    pub fn for_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, FOR_KW) }
     pub fn item_list(&self) -> Option<ItemList> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -552,8 +552,8 @@ impl AstNode for PointerType {
 }
 impl PointerType {
     pub fn star_token(&self) -> Option<Star> { support::token(&self.syntax) }
-    pub fn const_kw_token(&self) -> Option<ConstKw> { support::token(&self.syntax) }
-    pub fn mut_kw_token(&self) -> Option<MutKw> { support::token(&self.syntax) }
+    pub fn const_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, CONST_KW) }
+    pub fn mut_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, MUT_KW) }
     pub fn type_ref(&self) -> Option<TypeRef> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -616,7 +616,7 @@ impl AstNode for ReferenceType {
 impl ReferenceType {
     pub fn amp_token(&self) -> Option<Amp> { support::token(&self.syntax) }
     pub fn lifetime_token(&self) -> Option<Lifetime> { support::token(&self.syntax) }
-    pub fn mut_kw_token(&self) -> Option<MutKw> { support::token(&self.syntax) }
+    pub fn mut_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, MUT_KW) }
     pub fn type_ref(&self) -> Option<TypeRef> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -654,8 +654,8 @@ impl AstNode for FnPointerType {
 }
 impl FnPointerType {
     pub fn abi(&self) -> Option<Abi> { support::child(&self.syntax) }
-    pub fn unsafe_kw_token(&self) -> Option<UnsafeKw> { support::token(&self.syntax) }
-    pub fn fn_kw_token(&self) -> Option<FnKw> { support::token(&self.syntax) }
+    pub fn unsafe_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, UNSAFE_KW) }
+    pub fn fn_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, FN_KW) }
     pub fn param_list(&self) -> Option<ParamList> { support::child(&self.syntax) }
     pub fn ret_type(&self) -> Option<RetType> { support::child(&self.syntax) }
 }
@@ -675,7 +675,7 @@ impl AstNode for ForType {
     fn syntax(&self) -> &SyntaxNode { &self.syntax }
 }
 impl ForType {
-    pub fn for_kw_token(&self) -> Option<ForKw> { support::token(&self.syntax) }
+    pub fn for_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, FOR_KW) }
     pub fn type_param_list(&self) -> Option<TypeParamList> { support::child(&self.syntax) }
     pub fn type_ref(&self) -> Option<TypeRef> { support::child(&self.syntax) }
 }
@@ -696,7 +696,7 @@ impl AstNode for ImplTraitType {
 }
 impl ast::TypeBoundsOwner for ImplTraitType {}
 impl ImplTraitType {
-    pub fn impl_kw_token(&self) -> Option<ImplKw> { support::token(&self.syntax) }
+    pub fn impl_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, IMPL_KW) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct DynTraitType {
@@ -715,7 +715,7 @@ impl AstNode for DynTraitType {
 }
 impl ast::TypeBoundsOwner for DynTraitType {}
 impl DynTraitType {
-    pub fn dyn_kw_token(&self) -> Option<DynKw> { support::token(&self.syntax) }
+    pub fn dyn_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, DYN_KW) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct TupleExpr {
@@ -816,9 +816,9 @@ impl AstNode for LambdaExpr {
 }
 impl ast::AttrsOwner for LambdaExpr {}
 impl LambdaExpr {
-    pub fn static_kw_token(&self) -> Option<StaticKw> { support::token(&self.syntax) }
-    pub fn async_kw_token(&self) -> Option<AsyncKw> { support::token(&self.syntax) }
-    pub fn move_kw_token(&self) -> Option<MoveKw> { support::token(&self.syntax) }
+    pub fn static_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, STATIC_KW) }
+    pub fn async_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, ASYNC_KW) }
+    pub fn move_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, MOVE_KW) }
     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) }
@@ -840,7 +840,7 @@ impl AstNode for IfExpr {
 }
 impl ast::AttrsOwner for IfExpr {}
 impl IfExpr {
-    pub fn if_kw_token(&self) -> Option<IfKw> { support::token(&self.syntax) }
+    pub fn if_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, IF_KW) }
     pub fn condition(&self) -> Option<Condition> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -861,7 +861,7 @@ impl AstNode for LoopExpr {
 impl ast::AttrsOwner for LoopExpr {}
 impl ast::LoopBodyOwner for LoopExpr {}
 impl LoopExpr {
-    pub fn loop_kw_token(&self) -> Option<LoopKw> { support::token(&self.syntax) }
+    pub fn loop_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, LOOP_KW) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct TryBlockExpr {
@@ -880,7 +880,7 @@ impl AstNode for TryBlockExpr {
 }
 impl ast::AttrsOwner for TryBlockExpr {}
 impl TryBlockExpr {
-    pub fn try_kw_token(&self) -> Option<TryKw> { support::token(&self.syntax) }
+    pub fn try_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, TRY_KW) }
     pub fn body(&self) -> Option<BlockExpr> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -901,9 +901,9 @@ impl AstNode for ForExpr {
 impl ast::AttrsOwner for ForExpr {}
 impl ast::LoopBodyOwner for ForExpr {}
 impl ForExpr {
-    pub fn for_kw_token(&self) -> Option<ForKw> { support::token(&self.syntax) }
+    pub fn for_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, FOR_KW) }
     pub fn pat(&self) -> Option<Pat> { support::child(&self.syntax) }
-    pub fn in_kw_token(&self) -> Option<InKw> { support::token(&self.syntax) }
+    pub fn in_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, IN_KW) }
     pub fn iterable(&self) -> Option<Expr> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -924,7 +924,7 @@ impl AstNode for WhileExpr {
 impl ast::AttrsOwner for WhileExpr {}
 impl ast::LoopBodyOwner for WhileExpr {}
 impl WhileExpr {
-    pub fn while_kw_token(&self) -> Option<WhileKw> { support::token(&self.syntax) }
+    pub fn while_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, WHILE_KW) }
     pub fn condition(&self) -> Option<Condition> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -944,7 +944,9 @@ impl AstNode for ContinueExpr {
 }
 impl ast::AttrsOwner for ContinueExpr {}
 impl ContinueExpr {
-    pub fn continue_kw_token(&self) -> Option<ContinueKw> { support::token(&self.syntax) }
+    pub fn continue_token(&self) -> Option<SyntaxToken> {
+        support::token2(&self.syntax, CONTINUE_KW)
+    }
     pub fn lifetime_token(&self) -> Option<Lifetime> { support::token(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -964,7 +966,7 @@ impl AstNode for BreakExpr {
 }
 impl ast::AttrsOwner for BreakExpr {}
 impl BreakExpr {
-    pub fn break_kw_token(&self) -> Option<BreakKw> { support::token(&self.syntax) }
+    pub fn break_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, BREAK_KW) }
     pub fn lifetime_token(&self) -> Option<Lifetime> { support::token(&self.syntax) }
     pub fn expr(&self) -> Option<Expr> { support::child(&self.syntax) }
 }
@@ -1004,7 +1006,7 @@ impl AstNode for BlockExpr {
 impl ast::AttrsOwner for BlockExpr {}
 impl BlockExpr {
     pub fn label(&self) -> Option<Label> { support::child(&self.syntax) }
-    pub fn unsafe_kw_token(&self) -> Option<UnsafeKw> { support::token(&self.syntax) }
+    pub fn unsafe_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, UNSAFE_KW) }
     pub fn block(&self) -> Option<Block> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -1128,7 +1130,7 @@ impl ast::AttrsOwner for AwaitExpr {}
 impl AwaitExpr {
     pub fn expr(&self) -> Option<Expr> { support::child(&self.syntax) }
     pub fn dot_token(&self) -> Option<Dot> { support::token(&self.syntax) }
-    pub fn await_kw_token(&self) -> Option<AwaitKw> { support::token(&self.syntax) }
+    pub fn await_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, AWAIT_KW) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct TryExpr {
@@ -1147,7 +1149,7 @@ impl AstNode for TryExpr {
 }
 impl ast::AttrsOwner for TryExpr {}
 impl TryExpr {
-    pub fn try_kw_token(&self) -> Option<TryKw> { support::token(&self.syntax) }
+    pub fn try_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, TRY_KW) }
     pub fn expr(&self) -> Option<Expr> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -1168,7 +1170,7 @@ impl AstNode for CastExpr {
 impl ast::AttrsOwner for CastExpr {}
 impl CastExpr {
     pub fn expr(&self) -> Option<Expr> { support::child(&self.syntax) }
-    pub fn as_kw_token(&self) -> Option<AsKw> { support::token(&self.syntax) }
+    pub fn as_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, AS_KW) }
     pub fn type_ref(&self) -> Option<TypeRef> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -1189,8 +1191,8 @@ impl AstNode for RefExpr {
 impl ast::AttrsOwner for RefExpr {}
 impl RefExpr {
     pub fn amp_token(&self) -> Option<Amp> { support::token(&self.syntax) }
-    pub fn raw_kw_token(&self) -> Option<RawKw> { support::token(&self.syntax) }
-    pub fn mut_kw_token(&self) -> Option<MutKw> { support::token(&self.syntax) }
+    pub fn raw_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, RAW_KW) }
+    pub fn mut_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, MUT_KW) }
     pub fn expr(&self) -> Option<Expr> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -1230,7 +1232,7 @@ impl AstNode for BoxExpr {
 }
 impl ast::AttrsOwner for BoxExpr {}
 impl BoxExpr {
-    pub fn box_kw_token(&self) -> Option<BoxKw> { support::token(&self.syntax) }
+    pub fn box_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, BOX_KW) }
     pub fn expr(&self) -> Option<Expr> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -1306,7 +1308,7 @@ impl AstNode for MatchExpr {
 }
 impl ast::AttrsOwner for MatchExpr {}
 impl MatchExpr {
-    pub fn match_kw_token(&self) -> Option<MatchKw> { support::token(&self.syntax) }
+    pub fn match_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, MATCH_KW) }
     pub fn expr(&self) -> Option<Expr> { support::child(&self.syntax) }
     pub fn match_arm_list(&self) -> Option<MatchArmList> { support::child(&self.syntax) }
 }
@@ -1369,7 +1371,7 @@ impl AstNode for MatchGuard {
     fn syntax(&self) -> &SyntaxNode { &self.syntax }
 }
 impl MatchGuard {
-    pub fn if_kw_token(&self) -> Option<IfKw> { support::token(&self.syntax) }
+    pub fn if_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, IF_KW) }
     pub fn expr(&self) -> Option<Expr> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -1489,7 +1491,7 @@ impl AstNode for RefPat {
 }
 impl RefPat {
     pub fn amp_token(&self) -> Option<Amp> { support::token(&self.syntax) }
-    pub fn mut_kw_token(&self) -> Option<MutKw> { support::token(&self.syntax) }
+    pub fn mut_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, MUT_KW) }
     pub fn pat(&self) -> Option<Pat> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -1508,7 +1510,7 @@ impl AstNode for BoxPat {
     fn syntax(&self) -> &SyntaxNode { &self.syntax }
 }
 impl BoxPat {
-    pub fn box_kw_token(&self) -> Option<BoxKw> { support::token(&self.syntax) }
+    pub fn box_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, BOX_KW) }
     pub fn pat(&self) -> Option<Pat> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -1529,8 +1531,8 @@ impl AstNode for BindPat {
 impl ast::AttrsOwner for BindPat {}
 impl ast::NameOwner for BindPat {}
 impl BindPat {
-    pub fn ref_kw_token(&self) -> Option<RefKw> { support::token(&self.syntax) }
-    pub fn mut_kw_token(&self) -> Option<MutKw> { support::token(&self.syntax) }
+    pub fn ref_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, REF_KW) }
+    pub fn mut_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, MUT_KW) }
     pub fn at_token(&self) -> Option<At> { support::token(&self.syntax) }
     pub fn pat(&self) -> Option<Pat> { support::child(&self.syntax) }
 }
@@ -1786,10 +1788,10 @@ impl AstNode for Visibility {
     fn syntax(&self) -> &SyntaxNode { &self.syntax }
 }
 impl Visibility {
-    pub fn pub_kw_token(&self) -> Option<PubKw> { support::token(&self.syntax) }
-    pub fn super_kw_token(&self) -> Option<SuperKw> { support::token(&self.syntax) }
-    pub fn self_kw_token(&self) -> Option<SelfKw> { support::token(&self.syntax) }
-    pub fn crate_kw_token(&self) -> Option<CrateKw> { support::token(&self.syntax) }
+    pub fn pub_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, PUB_KW) }
+    pub fn super_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, SUPER_KW) }
+    pub fn self_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, SELF_KW) }
+    pub fn crate_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, CRATE_KW) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct Name {
@@ -1994,7 +1996,7 @@ impl AstNode for TypeBound {
 }
 impl TypeBound {
     pub fn lifetime_token(&self) -> Option<Lifetime> { support::token(&self.syntax) }
-    pub fn const_kw_token(&self) -> Option<ConstKw> { support::token(&self.syntax) }
+    pub fn const_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, CONST_KW) }
     pub fn type_ref(&self) -> Option<TypeRef> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -2051,7 +2053,7 @@ impl AstNode for WhereClause {
     fn syntax(&self) -> &SyntaxNode { &self.syntax }
 }
 impl WhereClause {
-    pub fn where_kw_token(&self) -> Option<WhereKw> { support::token(&self.syntax) }
+    pub fn where_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, WHERE_KW) }
     pub fn predicates(&self) -> AstChildren<WherePred> { support::children(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -2110,7 +2112,7 @@ impl AstNode for LetStmt {
 impl ast::AttrsOwner for LetStmt {}
 impl ast::TypeAscriptionOwner for LetStmt {}
 impl LetStmt {
-    pub fn let_kw_token(&self) -> Option<LetKw> { support::token(&self.syntax) }
+    pub fn let_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, LET_KW) }
     pub fn pat(&self) -> Option<Pat> { support::child(&self.syntax) }
     pub fn eq_token(&self) -> Option<Eq> { support::token(&self.syntax) }
     pub fn initializer(&self) -> Option<Expr> { support::child(&self.syntax) }
@@ -2132,7 +2134,7 @@ impl AstNode for Condition {
     fn syntax(&self) -> &SyntaxNode { &self.syntax }
 }
 impl Condition {
-    pub fn let_kw_token(&self) -> Option<LetKw> { support::token(&self.syntax) }
+    pub fn let_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, LET_KW) }
     pub fn pat(&self) -> Option<Pat> { support::child(&self.syntax) }
     pub fn eq_token(&self) -> Option<Eq> { support::token(&self.syntax) }
     pub fn expr(&self) -> Option<Expr> { support::child(&self.syntax) }
@@ -2201,7 +2203,7 @@ impl ast::AttrsOwner for SelfParam {}
 impl SelfParam {
     pub fn amp_token(&self) -> Option<Amp> { support::token(&self.syntax) }
     pub fn lifetime_token(&self) -> Option<Lifetime> { support::token(&self.syntax) }
-    pub fn self_kw_token(&self) -> Option<SelfKw> { support::token(&self.syntax) }
+    pub fn self_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, SELF_KW) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct Param {
@@ -2242,7 +2244,7 @@ impl AstNode for UseItem {
 impl ast::AttrsOwner for UseItem {}
 impl ast::VisibilityOwner for UseItem {}
 impl UseItem {
-    pub fn use_kw_token(&self) -> Option<UseKw> { support::token(&self.syntax) }
+    pub fn use_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, USE_KW) }
     pub fn use_tree(&self) -> Option<UseTree> { support::child(&self.syntax) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -2283,7 +2285,7 @@ impl AstNode for Alias {
 }
 impl ast::NameOwner for Alias {}
 impl Alias {
-    pub fn as_kw_token(&self) -> Option<AsKw> { support::token(&self.syntax) }
+    pub fn as_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, AS_KW) }
 }
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct UseTreeList {
@@ -2323,8 +2325,8 @@ impl AstNode for ExternCrateItem {
 impl ast::AttrsOwner for ExternCrateItem {}
 impl ast::VisibilityOwner for ExternCrateItem {}
 impl ExternCrateItem {
-    pub fn extern_kw_token(&self) -> Option<ExternKw> { support::token(&self.syntax) }
-    pub fn crate_kw_token(&self) -> Option<CrateKw> { support::token(&self.syntax) }
+    pub fn extern_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, EXTERN_KW) }
+    pub fn crate_token(&self) -> Option<SyntaxToken> { support::token2(&self.syntax, CRATE_KW) }
     pub fn name_ref(&self) -> Option<NameRef> { support::child(&self.syntax) }
     pub fn alias(&self) -> Option<Alias> { support::child(&self.syntax) }
 }
diff --git a/crates/ra_syntax/src/ast/generated/tokens.rs b/crates/ra_syntax/src/ast/generated/tokens.rs
index e64b8bce6..7344b0e49 100644
--- a/crates/ra_syntax/src/ast/generated/tokens.rs
+++ b/crates/ra_syntax/src/ast/generated/tokens.rs
@@ -1046,906 +1046,6 @@ impl AstToken for Shreq {
     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 { kind == AS_KW }
-    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 { kind == ASYNC_KW }
-    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 { kind == AWAIT_KW }
-    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 { kind == BOX_KW }
-    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 { kind == BREAK_KW }
-    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 { kind == CONST_KW }
-    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 { kind == CONTINUE_KW }
-    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 { kind == CRATE_KW }
-    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 { kind == DYN_KW }
-    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 { kind == ELSE_KW }
-    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 { kind == ENUM_KW }
-    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 { kind == EXTERN_KW }
-    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 { kind == FALSE_KW }
-    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 { kind == FN_KW }
-    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 { kind == FOR_KW }
-    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 { kind == IF_KW }
-    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 { kind == IMPL_KW }
-    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 { kind == IN_KW }
-    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 { kind == LET_KW }
-    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 { kind == LOOP_KW }
-    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 { kind == MACRO_KW }
-    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 { kind == MATCH_KW }
-    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 { kind == MOD_KW }
-    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 { kind == MOVE_KW }
-    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 { kind == MUT_KW }
-    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 { kind == PUB_KW }
-    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 { kind == REF_KW }
-    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 { kind == RETURN_KW }
-    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 { kind == SELF_KW }
-    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 { kind == STATIC_KW }
-    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 { kind == STRUCT_KW }
-    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 { kind == SUPER_KW }
-    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 { kind == TRAIT_KW }
-    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 { kind == TRUE_KW }
-    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 { kind == TRY_KW }
-    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 { kind == TYPE_KW }
-    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 { kind == UNSAFE_KW }
-    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 { kind == USE_KW }
-    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 { kind == WHERE_KW }
-    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 { kind == WHILE_KW }
-    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 { kind == AUTO_KW }
-    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 { kind == DEFAULT_KW }
-    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 { kind == EXISTENTIAL_KW }
-    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 { kind == UNION_KW }
-    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 { kind == RAW_KW }
-    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,
 }
@@ -2687,8 +1787,6 @@ pub enum LiteralToken {
     FloatNumber(FloatNumber),
     String(String),
     RawString(RawString),
-    TrueKw(TrueKw),
-    FalseKw(FalseKw),
     ByteString(ByteString),
     RawByteString(RawByteString),
     Char(Char),
@@ -2706,12 +1804,6 @@ impl From<String> for LiteralToken {
 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) }
 }
@@ -2732,8 +1824,8 @@ impl std::fmt::Display for LiteralToken {
 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,
+            INT_NUMBER | FLOAT_NUMBER | STRING | RAW_STRING | BYTE_STRING | RAW_BYTE_STRING
+            | CHAR | BYTE => true,
             _ => false,
         }
     }
@@ -2743,8 +1835,6 @@ impl AstToken for LiteralToken {
             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 }),
@@ -2759,8 +1849,6 @@ impl AstToken for LiteralToken {
             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,