bjoernager/rust
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Add (..) syntax for RTN

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This commit is contained in:
Michael Goulet 2023-03-16 22:00:08 +00:00
parent 104aacb49f
commit 8b592db27a
44 changed files with 355 additions and 201 deletions
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20
compiler/rustc_ast/src/ast.rs
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@ -167,6 +167,9 @@ pub enum GenericArgs {
AngleBracketed(AngleBracketedArgs),
/// The `(A, B)` and `C` in `Foo(A, B) -> C`.
Parenthesized(ParenthesizedArgs),
/// Associated return type bounds, like `T: Trait<method(..): Send>`
/// which applies the `Send` bound to the return-type of `method`.
ReturnTypeNotation(Span),
}
impl GenericArgs {
@ -174,14 +177,11 @@ impl GenericArgs {
matches!(self, AngleBracketed(..))
}
pub fn is_parenthesized(&self) -> bool {
matches!(self, Parenthesized(..))
}
pub fn span(&self) -> Span {
match self {
AngleBracketed(data) => data.span,
Parenthesized(data) => data.span,
ReturnTypeNotation(span) => *span,
}
}
}
@ -235,15 +235,15 @@ impl AngleBracketedArg {
}
}
impl Into<Option<P<GenericArgs>>> for AngleBracketedArgs {
fn into(self) -> Option<P<GenericArgs>> {
Some(P(GenericArgs::AngleBracketed(self)))
impl Into<P<GenericArgs>> for AngleBracketedArgs {
fn into(self) -> P<GenericArgs> {
P(GenericArgs::AngleBracketed(self))
}
}
impl Into<Option<P<GenericArgs>>> for ParenthesizedArgs {
fn into(self) -> Option<P<GenericArgs>> {
Some(P(GenericArgs::Parenthesized(self)))
impl Into<P<GenericArgs>> for ParenthesizedArgs {
fn into(self) -> P<GenericArgs> {
P(GenericArgs::Parenthesized(self))
}
}