llvm-capstone/clang/test/SemaObjC/attr-swift_bridge.m
Corentin Jabot 98322d3eb4 Complete the implementation of P2361 Unevaluated string literals
The attributes changes were left out of Clang 17.
Attributes that used to take a string literal now accept an unevaluated
string literal instead, which means they reject numeric escape sequences
and strings literal with an encoding prefix - but the later was already
ill-formed in most cases.

We need to know that we are going to parse an unevaluated string literal
before we do - so we can reject numeric escape sequence,
so we derive from Attrs.td which attributes parameters are expected
to be string literals.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D156237
2023-08-15 14:13:13 +02:00

39 lines
1.3 KiB
Objective-C

// RUN: %clang_cc1 -verify -fsyntax-only %s
// expected-error@+1 {{'__swift_bridge__' attribute takes one argument}}
__attribute__((__swift_bridge__))
@interface I
@end
// expected-error@+1 {{expected string literal as argument of '__swift_bridge__' attribute}}
__attribute__((__swift_bridge__(1)))
@interface J
@end
// expected-error@+1 {{'__swift_bridge__' attribute takes one argument}}
__attribute__((__swift_bridge__("K", 1)))
@interface K
@end
@interface L
// expected-error@+1 {{'__swift_bridge__' attribute only applies to tag types, typedefs, Objective-C interfaces, and Objective-C protocols}}
- (void)method __attribute__((__swift_bridge__("method")));
@end
__attribute__((__swift_bridge__("Array")))
@interface NSArray
@end
__attribute__((__swift_bridge__("ProtocolP")))
@protocol P
@end
typedef NSArray *NSArrayAlias __attribute__((__swift_bridge__("ArrayAlias")));
struct __attribute__((__swift_bridge__("StructT"))) T {};
// Duplicate attributes with the same arguments are fine.
struct __attribute__((swift_bridge("foo"), swift_bridge("foo"))) S;
// Duplicate attributes with different arguments are not.
struct __attribute__((swift_bridge("foo"), swift_bridge("bar"))) S; // expected-warning {{attribute 'swift_bridge' is already applied with different arguments}}