[gcc r13-5542] gccrs: transcriber: Do not infinite loop if the current parsed node is an error
Arthur Cohen
cohenarthur@gcc.gnu.org
Tue Jan 31 13:14:57 GMT 2023
https://gcc.gnu.org/g:252216dd0c5956dfb931031fd1f8dfa59c922160
commit r13-5542-g252216dd0c5956dfb931031fd1f8dfa59c922160
Author: Arthur Cohen <arthur.cohen@embecosm.com>
Date: Mon Aug 29 16:23:51 2022 +0200
gccrs: transcriber: Do not infinite loop if the current parsed node is an error
gcc/rust/ChangeLog:
* expand/rust-macro-expand.cc (parse_many): Return early from parsing
loop if we encounter an error, and emit that error in the meantime.
Co-authored-by: philberty <philip.herron@embecosm.com>
Diff:
---
gcc/rust/expand/rust-macro-expand.cc | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/gcc/rust/expand/rust-macro-expand.cc b/gcc/rust/expand/rust-macro-expand.cc
index df258bd96ec..ed1b838c987 100644
--- a/gcc/rust/expand/rust-macro-expand.cc
+++ b/gcc/rust/expand/rust-macro-expand.cc
@@ -731,6 +731,14 @@ parse_many (Parser<MacroInvocLexer> &parser, TokenId &delimiter,
break;
auto node = parse_fn ();
+ if (node.is_error ())
+ {
+ for (auto err : parser.get_errors ())
+ err.emit_error ();
+
+ return AST::ASTFragment::create_error ();
+ }
+
nodes.emplace_back (std::move (node));
}
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