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7275da0f2e
ARC mode. Declaring __strong pointer fields in structs was not allowed in Objective-C ARC until now because that would make the struct non-trivial to default-initialize, copy/move, and destroy, which is not something C was designed to do. This patch lifts that restriction. Special functions for non-trivial C structs are synthesized that are needed to default-initialize, copy/move, and destroy the structs and manage the ownership of the objects the __strong pointer fields point to. Non-trivial structs passed to functions are destructed in the callee function. rdar://problem/33599681 Differential Revision: https://reviews.llvm.org/D41228 llvm-svn: 326307
15 lines
395 B
Objective-C
15 lines
395 B
Objective-C
// RUN: %clang_cc1 -triple arm64-apple-ios11 -fobjc-arc -fblocks -fobjc-runtime=ios-11.0 -emit-llvm -verify -o - %s
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typedef struct { // expected-error {{special function __default_constructor_8_s8 for non-trivial C struct has incorrect type}}
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int i;
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id f1;
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} StrongSmall;
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int __default_constructor_8_s8(double a) {
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return 0;
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}
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void testIncorrectFunctionType(void) {
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StrongSmall x;
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}
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