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method call scope

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This commit is contained in:
Aleksey Kladov 2018-09-03 02:01:43 +03:00
parent fdd282ee0c
commit 58480b9190
4 changed files with 44 additions and 11 deletions
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10
crates/libsyntax2/src/ast/generated.rs
View file

@ -200,12 +200,10 @@ impl<'a> AstNode<'a> for CallExpr<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> ast::ArgListOwner<'a> for CallExpr<'a> {}
impl<'a> CallExpr<'a> {pub fn expr(self) -> Option<Expr<'a>> {
super::child_opt(self)
}
pub fn arg_list(self) -> Option<ArgList<'a>> {
super::child_opt(self)
}
}
// CastExpr
@ -934,7 +932,11 @@ impl<'a> AstNode<'a> for MethodCallExpr<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> MethodCallExpr<'a> {}
impl<'a> ast::ArgListOwner<'a> for MethodCallExpr<'a> {}
impl<'a> MethodCallExpr<'a> {pub fn expr(self) -> Option<Expr<'a>> {
super::child_opt(self)
}
}
// Module
#[derive(Debug, Clone, Copy)]

6
crates/libsyntax2/src/ast/mod.rs
View file

@ -26,6 +26,12 @@ pub trait LoopBodyOwner<'a>: AstNode<'a> {
}
}
pub trait ArgListOwner<'a>: AstNode<'a> {
fn arg_list(self) -> Option<ArgList<'a>> {
child_opt(self)
}
}
pub trait TypeParamsOwner<'a>: AstNode<'a> {
fn type_param_list(self) -> Option<TypeParamList<'a>> {
child_opt(self)

8
crates/libsyntax2/src/grammar.ron
View file

@ -388,10 +388,14 @@ Grammar(
"NamedFieldList": (),
"NamedField": (),
"CallExpr": (
options: [ "Expr", "ArgList" ]
traits: ["ArgListOwner"],
options: [ "Expr" ],
),
"MethodCallExpr": (
traits: ["ArgListOwner"],
options: [ "Expr" ],
),
"IndexExpr": (),
"MethodCallExpr": (),
"FieldExpr": (),
"TryExpr": (),
"CastExpr": (),