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Auto merge of #104875 - chenyukang:yukang/fix-104867-inc, r=estebank

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Properly handle postfix inc/dec in standalone and subexpr scenarios

Fixes #104867
r? `@estebank`
This commit is contained in:
bors 2022-12-14 04:00:05 +00:00
commit 309c469eec
10 changed files with 386 additions and 65 deletions
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4
compiler/rustc_parse/src/parser/stmt.rs
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@ -164,7 +164,7 @@ impl<'a> Parser<'a> {
// Perform this outside of the `collect_tokens_trailing_token` closure,
// since our outer attributes do not apply to this part of the expression
let expr = self.with_res(Restrictions::STMT_EXPR, |this| {
this.parse_assoc_expr_with(0, LhsExpr::AlreadyParsed(expr))
this.parse_assoc_expr_with(0, LhsExpr::AlreadyParsed(expr, true))
})?;
Ok(self.mk_stmt(lo.to(self.prev_token.span), StmtKind::Expr(expr)))
} else {
@ -198,7 +198,7 @@ impl<'a> Parser<'a> {
let e = self.mk_expr(lo.to(hi), ExprKind::MacCall(mac));
let e = self.maybe_recover_from_bad_qpath(e)?;
let e = self.parse_dot_or_call_expr_with(e, lo, attrs)?;
let e = self.parse_assoc_expr_with(0, LhsExpr::AlreadyParsed(e))?;
let e = self.parse_assoc_expr_with(0, LhsExpr::AlreadyParsed(e, false))?;
StmtKind::Expr(e)
};
Ok(self.mk_stmt(lo.to(hi), kind))