bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Fix a stack overflow with long else if chains

Browse source
This commit is contained in:
John Kåre Alsaker 2023-08-19 12:55:01 +02:00
parent d06ca0ffaf
commit 1e87ef66f4
2 changed files with 4 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

3
compiler/rustc_parse/src/parser/expr.rs
View file

@ -22,6 +22,7 @@ use rustc_ast::{AnonConst, BinOp, BinOpKind, FnDecl, FnRetTy, MacCall, Param, Ty
use rustc_ast::{Arm, Async, BlockCheckMode, Expr, ExprKind, Label, Movability, RangeLimits};
use rustc_ast::{ClosureBinder, MetaItemLit, StmtKind};
use rustc_ast_pretty::pprust;
use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_errors::{
AddToDiagnostic, Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed, IntoDiagnostic,
PResult, StashKey,
@ -2489,7 +2490,7 @@ impl<'a> Parser<'a> {
let else_span = self.prev_token.span; // `else`
let attrs = self.parse_outer_attributes()?; // For recovery.
let expr = if self.eat_keyword(kw::If) {
self.parse_expr_if()?
ensure_sufficient_stack(|| self.parse_expr_if())?
} else if self.check(&TokenKind::OpenDelim(Delimiter::Brace)) {
self.parse_simple_block()?
} else {