2fef0a30ae
I'm removing empty identifiers everywhere, because in practice they always mean "no identifier" rather than "empty identifier". (An empty identifier is impossible.) It's better to use `Option` to mean "no identifier" because you then can't forget about the "no identifier" possibility. Some specifics: - When testing an attribute for a single name, the commit uses the `has_name` method. - When testing an attribute for multiple names, the commit uses the new `has_any_name` method. - When using `match` on an attribute, the match arms now have `Some` on them. In the tests, we now avoid printing empty identifiers by not printing the identifier in the `error:` line at all, instead letting the carets point out the problem.
57 lines
1.9 KiB
Rust
57 lines
1.9 KiB
Rust
//@ normalize-stderr: "(abi|pref|unadjusted_abi_align): Align\([1-8] bytes\)" -> "$1: $$SOME_ALIGN"
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//@ normalize-stderr: "randomization_seed: \d+" -> "randomization_seed: $$SEED"
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//@ normalize-stderr: "(size): Size\([48] bytes\)" -> "$1: $$SOME_SIZE"
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//@ normalize-stderr: "(can_unwind): (true|false)" -> "$1: $$SOME_BOOL"
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//@ normalize-stderr: "(valid_range): 0\.\.=(4294967295|18446744073709551615)" -> "$1: $$FULL"
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// This pattern is prepared for when we account for alignment in the niche.
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//@ normalize-stderr: "(valid_range): [1-9]\.\.=(429496729[0-9]|1844674407370955161[0-9])" -> "$1: $$NON_NULL"
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// Some attributes are only computed for release builds:
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//@ compile-flags: -O
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#![feature(rustc_attrs)]
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#![crate_type = "lib"]
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struct S(u16);
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#[rustc_abi(debug)]
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fn test(_x: u8) -> bool { true } //~ ERROR: fn_abi
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#[rustc_abi(debug)]
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type TestFnPtr = fn(bool) -> u8; //~ ERROR: fn_abi
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#[rustc_abi(debug)]
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fn test_generic<T>(_x: *const T) { } //~ ERROR: fn_abi
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#[rustc_abi(debug)]
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const C: () = (); //~ ERROR: can only be applied to
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impl S {
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#[rustc_abi(debug)]
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const C: () = (); //~ ERROR: can only be applied to
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}
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impl S {
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#[rustc_abi(debug)]
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fn assoc_test(&self) { } //~ ERROR: fn_abi
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}
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#[rustc_abi(assert_eq)]
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type TestAbiEq = (fn(bool), fn(bool));
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#[rustc_abi(assert_eq)]
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type TestAbiNe = (fn(u8), fn(u32)); //~ ERROR: ABIs are not compatible
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#[rustc_abi(assert_eq)]
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type TestAbiNeLarger = (fn([u8; 32]), fn([u32; 32])); //~ ERROR: ABIs are not compatible
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#[rustc_abi(assert_eq)]
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type TestAbiNeFloat = (fn(f32), fn(u32)); //~ ERROR: ABIs are not compatible
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// Sign matters on some targets (such as s390x), so let's make sure we never accept this.
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#[rustc_abi(assert_eq)]
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type TestAbiNeSign = (fn(i32), fn(u32)); //~ ERROR: ABIs are not compatible
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#[rustc_abi(assert_eq)]
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type TestAbiEqNonsense = (fn((str, str)), fn((str, str))); //~ ERROR: cannot be known at compilation time
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#[rustc_abi("assert_eq")] //~ ERROR unrecognized argument
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type Bad = u32;
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