From b436709f4b1b0d75fa0b5f1c6c6b22f397a767c9 Mon Sep 17 00:00:00 2001 From: Owen Avery Date: Mon, 5 Jun 2023 16:48:55 -0400 Subject: 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 --- gcc/rust/parse/rust-parse-impl.h | 5 ++--- gcc/testsuite/rust/compile/struct-expr-parse.rs | 7 +++++++ 2 files changed, 9 insertions(+), 3 deletions(-) create mode 100644 gcc/testsuite/rust/compile/struct-expr-parse.rs (limited to 'gcc') diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h index 9faa374..80ffbcc 100644 --- a/gcc/rust/parse/rust-parse-impl.h +++ b/gcc/rust/parse/rust-parse-impl.h @@ -12633,11 +12633,10 @@ Parser::null_denotation (const_TokenPtr tok, std::unique_ptr 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 0000000..3c383a9 --- /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); +} -- cgit v1.1