union is a weak keyword which means it isn't reserved and can be used
as a generic identifier. When we see an identifier where a union could
be declared we check whether the identifier is "union", but only when
the next token is also an identifier. In parse_union we shouldn't skip
the first identifier token, because it is already skipped when we call
expect_token.
---
gcc/rust/parse/rust-parse-impl.h | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h
index bdf1e09a029..3996ef21672 100644
--- a/gcc/rust/parse/rust-parse-impl.h
+++ b/gcc/rust/parse/rust-parse-impl.h
@@ -1083,7 +1083,8 @@ Parser<ManagedTokenSource>::parse_item (bool
called_from_statement)
// crappy hack to do union "keyword"
case IDENTIFIER:
// TODO: ensure std::string and literal comparison works
- if (t->get_str () == "union")
+ if (t->get_str () == "union"
+ && lexer.peek_token (1)->get_id () == IDENTIFIER)
{
return parse_vis_item (std::move (outer_attrs));
// or should this go straight to parsing union?
@@ -1274,8 +1275,8 @@ Parser<ManagedTokenSource>::parse_vis_item (AST::AttrVec
outer_attrs)
// TODO: implement union keyword but not really because of
// context-dependence case UNION: crappy hack to do union "keyword"
case IDENTIFIER:
- // TODO: ensure std::string and literal comparison works
- if (t->get_str () == "union")
+ if (t->get_str () == "union"
+ && lexer.peek_token (1)->get_id () == IDENTIFIER)
{
return parse_union (std::move (vis), std::move (outer_attrs));
// or should item switch go straight to parsing union?
@@ -4524,7 +4525,6 @@ Parser<ManagedTokenSource>::parse_union (AST::Visibility
vis,
const_TokenPtr union_keyword = expect_token (IDENTIFIER);
rust_assert (union_keyword->get_str () == "union");
Location locus = union_keyword->get_locus ();
- lexer.skip_token ();
// parse actual union name
const_TokenPtr union_name_tok = expect_token (IDENTIFIER);
@@ -6054,8 +6054,8 @@ Parser<ManagedTokenSource>::parse_stmt ()
break;
// crappy hack to do union "keyword"
case IDENTIFIER:
- // TODO: ensure std::string and literal comparison works
- if (t->get_str () == "union")
+ if (t->get_str () == "union"
+ && lexer.peek_token (1)->get_id () == IDENTIFIER)
{
return parse_vis_item (std::move (outer_attrs));
// or should this go straight to parsing union?
@@ -11674,8 +11674,8 @@
Parser<ManagedTokenSource>::parse_stmt_or_expr_without_block ()
}
// crappy hack to do union "keyword"
case IDENTIFIER:
- // TODO: ensure std::string and literal comparison works
- if (t->get_str () == "union")
+ if (t->get_str () == "union"
+ && lexer.peek_token (1)->get_id () == IDENTIFIER)
{
std::unique_ptr<AST::VisItem> item (
parse_vis_item (std::move (outer_attrs)));
--
2.32.0
--
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