202 lines
6 KiB
Text
202 lines
6 KiB
Text
// RUN: %clang_cc1 -fobjc-runtime-has-weak -fsyntax-only -fobjc-arc -verify -fblocks -Wno-objc-root-class %s
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// Simple ownership conversions + diagnostics.
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int &f0(id __strong const *); // expected-note{{candidate function not viable: 1st argument ('__weak id *') has __weak ownership, but parameter has __strong ownership}}
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void test_f0() {
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id __strong *sip;
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id __strong const *csip;
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id __weak *wip;
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id __autoreleasing *aip;
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id __unsafe_unretained *uip;
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int &ir1 = f0(sip);
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int &ir2 = f0(csip);
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int &ir3 = f0(aip);
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int &ir4 = f0(uip);
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f0(wip); // expected-error{{no matching function for call to 'f0'}}
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}
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// Simple overloading
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int &f1(id __strong const *);
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float &f1(id __weak const *);
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void test_f1() {
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id __strong *sip;
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id __strong const *csip;
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id __weak *wip;
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id __autoreleasing *aip;
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id __unsafe_unretained *uip;
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int &ir1 = f1(sip);
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int &ir2 = f1(csip);
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float &fr1 = f1(wip);
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int &ir3 = f1(aip);
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int &ir4 = f1(uip);
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}
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// Simple overloading
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int &f2(id __strong const *); // expected-note{{candidate function}}
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float &f2(id __autoreleasing const *); // expected-note{{candidate function}}
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void test_f2() {
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id __strong *sip;
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id __strong const *csip;
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id __weak *wip;
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id __autoreleasing *aip;
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id __unsafe_unretained *uip;
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// Prefer non-ownership conversions to ownership conversions.
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int &ir1 = f2(sip);
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int &ir2 = f2(csip);
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float &fr1 = f2(aip);
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f2(uip); // expected-error{{call to 'f2' is ambiguous}}
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}
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// Writeback conversion
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int &f3(id __autoreleasing *); // expected-note{{candidate function not viable: 1st argument ('__unsafe_unretained id *') has __unsafe_unretained ownership, but parameter has __autoreleasing ownership}}
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void test_f3() {
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id __strong sip;
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id __weak wip;
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id __autoreleasing aip;
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id __unsafe_unretained uip;
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int &ir1 = f3(&sip);
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int &ir2 = f3(&wip);
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int &ir3 = f3(&aip);
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f3(&uip); // expected-error{{no matching function for call to 'f3'}}
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}
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// Writeback conversion vs. no conversion
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int &f4(id __autoreleasing *);
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float &f4(id __strong *);
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void test_f4() {
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id __strong sip;
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id __weak wip;
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id __autoreleasing aip;
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extern __weak id weak_global_ptr;
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float &fr1 = f4(&sip);
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int &ir1 = f4(&wip);
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int &ir2 = f4(&aip);
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int &ir3 = f4(&weak_global_ptr); // expected-error{{passing address of non-local object to __autoreleasing parameter for write-back}}
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}
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// Writeback conversion vs. other conversion.
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int &f5(id __autoreleasing *);
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float &f5(id const __unsafe_unretained *);
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void test_f5() {
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id __strong sip;
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id __weak wip;
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id __autoreleasing aip;
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int &ir1 = f5(&wip);
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float &fr1 = f5(&sip);
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int &ir2 = f5(&aip);
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}
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@interface A
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@end
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int &f6(id __autoreleasing *);
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float &f6(id const __unsafe_unretained *);
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void test_f6() {
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A* __strong sip;
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A* __weak wip;
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A* __autoreleasing aip;
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int &ir1 = f6(&wip);
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float &fr1 = f6(&sip);
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int &ir2 = f6(&aip);
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}
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// Reference binding
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void f7(__strong id&); // expected-note{{candidate function not viable: 1st argument ('__weak id') has __weak ownership, but parameter has __strong ownership}} \
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// expected-note{{candidate function not viable: 1st argument ('__autoreleasing id') has __autoreleasing ownership, but parameter has __strong ownership}} \
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// expected-note{{candidate function not viable: 1st argument ('__unsafe_unretained id') has __unsafe_unretained ownership, but parameter has __strong ownership}}
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void test_f7() {
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__strong id strong_id;
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__weak id weak_id;
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__autoreleasing id autoreleasing_id;
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__unsafe_unretained id unsafe_id;
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f7(strong_id);
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f7(weak_id); // expected-error{{no matching function for call to 'f7'}}
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f7(autoreleasing_id); // expected-error{{no matching function for call to 'f7'}}
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f7(unsafe_id); // expected-error{{no matching function for call to 'f7'}}
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}
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void f8(const __strong id&);
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void test_f8() {
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__strong id strong_id;
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__weak id weak_id;
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__autoreleasing id autoreleasing_id;
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__unsafe_unretained id unsafe_id;
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f8(strong_id);
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f8(weak_id);
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f8(autoreleasing_id);
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f8(unsafe_id);
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}
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int &f9(__strong id&);
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float &f9(const __autoreleasing id&);
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void test_f9() {
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__strong id strong_id;
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__weak id weak_id;
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__autoreleasing id autoreleasing_id;
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__unsafe_unretained id unsafe_id;
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int &ir1 = f9(strong_id);
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float &fr1 = f9(autoreleasing_id);
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float &fr2 = f9(unsafe_id);
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float &fr2a = f9(weak_id);
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__strong A *strong_a;
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__weak A *weak_a;
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__autoreleasing A *autoreleasing_a;
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__unsafe_unretained A *unsafe_unretained_a;
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float &fr3 = f9(strong_a);
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float &fr4 = f9(autoreleasing_a);
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float &fr5 = f9(unsafe_unretained_a);
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float &fr6 = f9(weak_a);
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const __autoreleasing id& ar1 = strong_a;
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const __autoreleasing id& ar2 = autoreleasing_a;
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const __autoreleasing id& ar3 = unsafe_unretained_a;
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const __autoreleasing id& ar4 = weak_a;
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}
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// rdar://9790531
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void f9790531(void *inClientData); // expected-note {{candidate function not viable: cannot implicitly convert argument of type 'MixerEQGraphTestDelegate *const __strong' to 'void *' for 1st argument under ARC}}
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void f9790531_1(struct S*inClientData); // expected-note {{candidate function not viable}}
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void f9790531_2(char * inClientData); // expected-note {{candidate function not viable}}
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@class UIApplication;
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@interface MixerEQGraphTestDelegate
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- (void)applicationDidFinishLaunching;
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@end
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@implementation MixerEQGraphTestDelegate
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- (void)applicationDidFinishLaunching {
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f9790531(self); // expected-error {{no matching function for call to 'f9790531'}}
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f9790531_1(self); // expected-error {{no matching function for call to 'f9790531_1'}}
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f9790531_2(self); // expected-error {{no matching function for call to 'f9790531_2'}}
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}
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@end
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class rdar10142572 {
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id f() __attribute__((ns_returns_retained));
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id g(); // expected-note{{previous declaration}}
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};
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id rdar10142572::f() { return 0; } // okay: merged down
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id __attribute__((ns_returns_retained)) rdar10142572::g() { return 0; } // expected-error{{function declared with the ns_returns_retained attribute was previously declared without the ns_returns_retained attribute}}
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