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Support async gen fn

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This commit is contained in:
Michael Goulet
2023-12-05 21:45:01 +00:00
parent 2806c2df7b
commit a208bae00e
16 changed files with 115 additions and 104 deletions
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11
compiler/rustc_ast/src/ast.rs
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@@ -2415,10 +2415,12 @@ pub enum Unsafe {
/// Iterator`.
#[derive(Copy, Clone, Encodable, Decodable, Debug)]
pub enum CoroutineKind {
/// `async`, which evaluates to `impl Future`
/// `async`, which returns an `impl Future`
Async { span: Span, closure_id: NodeId, return_impl_trait_id: NodeId },
/// `gen`, which evaluates to `impl Iterator`
/// `gen`, which returns an `impl Iterator`
Gen { span: Span, closure_id: NodeId, return_impl_trait_id: NodeId },
/// `async gen`, which returns an `impl AsyncIterator`
AsyncGen { span: Span, closure_id: NodeId, return_impl_trait_id: NodeId },
}
impl CoroutineKind {
@@ -2435,7 +2437,10 @@ impl CoroutineKind {
pub fn return_id(self) -> (NodeId, Span) {
match self {
CoroutineKind::Async { return_impl_trait_id, span, .. }
| CoroutineKind::Gen { return_impl_trait_id, span, .. } => (return_impl_trait_id, span),
| CoroutineKind::Gen { return_impl_trait_id, span, .. }
| CoroutineKind::AsyncGen { return_impl_trait_id, span, .. } => {
(return_impl_trait_id, span)
}
}
}
}