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* [gcc r14-7643] gccrs: Allow parsing a borrow from struct expression
@ 2024-01-16 17:50 Arthur Cohen
0 siblings, 0 replies; only message in thread
From: Arthur Cohen @ 2024-01-16 17:50 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:b436709f4b1b0d75fa0b5f1c6c6b22f397a767c9
commit r14-7643-gb436709f4b1b0d75fa0b5f1c6c6b22f397a767c9
Author: Owen Avery <powerboat9.gamer@gmail.com>
Date: Mon Jun 5 16:48:55 2023 -0400
gccrs: Allow parsing a borrow from struct expression
gcc/rust/ChangeLog:
* parse/rust-parse-impl.h
(Parser::null_denotation): Allow struct expression referencing.
gcc/testsuite/ChangeLog:
* rust/compile/struct-expr-parse.rs: New test.
Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
Diff:
---
gcc/rust/parse/rust-parse-impl.h | 5 ++---
gcc/testsuite/rust/compile/struct-expr-parse.rs | 7 +++++++
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h
index 9faa374915c..80ffbcc22f9 100644
--- a/gcc/rust/parse/rust-parse-impl.h
+++ b/gcc/rust/parse/rust-parse-impl.h
@@ -12633,11 +12633,10 @@ Parser<ManagedTokenSource>::null_denotation (const_TokenPtr tok,
std::unique_ptr<AST::Expr> expr = nullptr;
bool is_mut_borrow = false;
- /* HACK: as struct expressions should always be value expressions,
- * cannot be referenced */
ParseRestrictions entered_from_unary;
entered_from_unary.entered_from_unary = true;
- entered_from_unary.can_be_struct_expr = false;
+ if (!restrictions.can_be_struct_expr)
+ entered_from_unary.can_be_struct_expr = false;
if (lexer.peek_token ()->get_id () == MUT)
{
diff --git a/gcc/testsuite/rust/compile/struct-expr-parse.rs b/gcc/testsuite/rust/compile/struct-expr-parse.rs
new file mode 100644
index 00000000000..3c383a90ca4
--- /dev/null
+++ b/gcc/testsuite/rust/compile/struct-expr-parse.rs
@@ -0,0 +1,7 @@
+struct A { // { dg-warning "struct is never constructed" }
+ a: u32
+}
+
+pub fn foo(a: u32) {
+ (&A { a }.a, 1);
+}
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