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match scope

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This commit is contained in:
Aleksey Kladov 2018-09-03 01:51:46 +03:00
parent 83e2ab434c
commit 23303cd0f8
3 changed files with 63 additions and 20 deletions
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26
crates/libsyntax2/src/ast/generated.rs
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@ -842,7 +842,17 @@ impl<'a> AstNode<'a> for MatchArm<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> MatchArm<'a> {}
impl<'a> MatchArm<'a> {
pub fn pats(self) -> impl Iterator<Item = Pat<'a>> + 'a {
super::children(self)
}
pub fn guard(self) -> Option<MatchGuard<'a>> {
super::child_opt(self)
}
pub fn expr(self) -> Option<Expr<'a>> {
super::child_opt(self)
}
}
// MatchArmList
#[derive(Debug, Clone, Copy)]
@ -860,7 +870,11 @@ impl<'a> AstNode<'a> for MatchArmList<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> MatchArmList<'a> {}
impl<'a> MatchArmList<'a> {
pub fn arms(self) -> impl Iterator<Item = MatchArm<'a>> + 'a {
super::children(self)
}
}
// MatchExpr
#[derive(Debug, Clone, Copy)]
@ -878,7 +892,13 @@ impl<'a> AstNode<'a> for MatchExpr<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> MatchExpr<'a> {}
impl<'a> MatchExpr<'a> {pub fn expr(self) -> Option<Expr<'a>> {
super::child_opt(self)
}
pub fn match_arm_list(self) -> Option<MatchArmList<'a>> {
super::child_opt(self)
}
}
// MatchGuard
#[derive(Debug, Clone, Copy)]