bjoernager/rust
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Add the yield_expr feature

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This commit is contained in:
Eric Holk 2025-03-05 17:09:08 -08:00
parent 30f168ef81
commit 432e1c3eea
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GPG key ID: F1A772BB658A63E1
9 changed files with 74 additions and 50 deletions
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35
compiler/rustc_ast_lowering/src/expr.rs
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@ -1690,6 +1690,19 @@ impl<'hir> LoweringContext<'_, 'hir> {
let yielded =
opt_expr.as_ref().map(|x| self.lower_expr(x)).unwrap_or_else(|| self.expr_unit(span));
if !self.tcx.features().yield_expr()
&& !self.tcx.features().coroutines()
&& !self.tcx.features().gen_blocks()
{
rustc_session::parse::feature_err(
&self.tcx.sess,
sym::yield_expr,
span,
fluent_generated::ast_lowering_yield,
)
.emit();
}
let is_async_gen = match self.coroutine_kind {
Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _)) => false,
Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _)) => true,
@ -1714,28 +1727,8 @@ impl<'hir> LoweringContext<'_, 'hir> {
None,
);
}
Some(hir::CoroutineKind::Coroutine(_)) => {
if !self.tcx.features().coroutines() {
rustc_session::parse::feature_err(
&self.tcx.sess,
sym::coroutines,
span,
fluent_generated::ast_lowering_yield,
)
.emit();
}
false
}
Some(hir::CoroutineKind::Coroutine(_)) => false,
None => {
if !self.tcx.features().coroutines() {
rustc_session::parse::feature_err(
&self.tcx.sess,
sym::coroutines,
span,
fluent_generated::ast_lowering_yield,
)
.emit();
}
let suggestion = self.current_item.map(|s| s.shrink_to_lo());
self.dcx().emit_err(YieldInClosure { span, suggestion });
self.coroutine_kind = Some(hir::CoroutineKind::Coroutine(Movability::Movable));