Auto merge of #138747 - matthiaskrgr:rollup-68x44rw, r=matthiaskrgr
Rollup of 8 pull requests Successful merges: - #138435 (Add support for postfix yield expressions) - #138685 (Use `Option<Ident>` for lowered param names.) - #138700 (Suggest `-Whelp` when pass `--print lints` to rustc) - #138727 (Do not rely on `type_var_origin` in `OrphanCheckErr::NonLocalInputType`) - #138729 (Clean up `FnCtxt::resolve_coroutine_interiors`) - #138731 (coverage: Add LLVM plumbing for expansion regions) - #138732 (Use `def_path_str` for def id arg in `UnsupportedOpInfo`) - #138735 (Remove `llvm` and `llvms` triagebot ping aliases for `icebreakers-llvm` ping group) r? `@ghost` `@rustbot` modify labels: rollup
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commit
eda7820be5
62 changed files with 499 additions and 240 deletions
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@ -17,6 +17,7 @@ use rustc_ast::{
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self as ast, AnonConst, Arm, AttrStyle, AttrVec, BinOp, BinOpKind, BlockCheckMode, CaptureBy,
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ClosureBinder, DUMMY_NODE_ID, Expr, ExprField, ExprKind, FnDecl, FnRetTy, Label, MacCall,
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MetaItemLit, Movability, Param, RangeLimits, StmtKind, Ty, TyKind, UnOp, UnsafeBinderCastKind,
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YieldKind,
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};
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use rustc_ast_pretty::pprust;
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use rustc_data_structures::stack::ensure_sufficient_stack;
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@ -1310,6 +1311,15 @@ impl<'a> Parser<'a> {
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return self.parse_match_block(lo, match_span, self_arg, MatchKind::Postfix);
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}
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// Parse a postfix `yield`.
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if self.eat_keyword(exp!(Yield)) {
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let yield_span = self.prev_token.span;
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self.psess.gated_spans.gate(sym::yield_expr, yield_span);
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return Ok(
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self.mk_expr(lo.to(yield_span), ExprKind::Yield(YieldKind::Postfix(self_arg)))
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);
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}
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let fn_span_lo = self.token.span;
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let mut seg = self.parse_path_segment(PathStyle::Expr, None)?;
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self.check_trailing_angle_brackets(&seg, &[exp!(OpenParen)]);
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@ -1884,7 +1894,7 @@ impl<'a> Parser<'a> {
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/// Parse `"yield" expr?`.
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fn parse_expr_yield(&mut self) -> PResult<'a, P<Expr>> {
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let lo = self.prev_token.span;
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let kind = ExprKind::Yield(self.parse_expr_opt()?);
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let kind = ExprKind::Yield(YieldKind::Prefix(self.parse_expr_opt()?));
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let span = lo.to(self.prev_token.span);
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self.psess.gated_spans.gate(sym::yield_expr, span);
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let expr = self.mk_expr(span, kind);
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