132 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
			
		
		
	
	
			132 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
| // RUN: %clang_cc1 -fsyntax-only -verify -pedantic -Wno-objc-root-class %s
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| @protocol NSObject
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| @end
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| 
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| @protocol DTOutputStreams <NSObject>
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| @end
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| 
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| @interface DTFilterOutputStream <DTOutputStreams>
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| - nextOutputStream;
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| @end
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| 
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| @implementation DTFilterOutputStream
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| - (id)initWithNextOutputStream:(id <DTOutputStreams>) outputStream {
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|   id <DTOutputStreams> nextOutputStream = [self nextOutputStream];
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|   self = nextOutputStream;
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|   return nextOutputStream ? nextOutputStream : self;
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| }
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| - nextOutputStream {
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|   return self;
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| }
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| @end
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| 
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| @interface DTFilterOutputStream2
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| - nextOutputStream; // expected-note {{method 'nextOutputStream' declared here}}
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| @end
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| 
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| @implementation DTFilterOutputStream2 // expected-warning {{method definition for 'nextOutputStream' not found}}
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| - (id)initWithNextOutputStream:(id <DTOutputStreams>) outputStream {
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|   id <DTOutputStreams> nextOutputStream = [self nextOutputStream];
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|   self = nextOutputStream; // expected-warning {{assigning to 'DTFilterOutputStream2 *' from incompatible type 'id<DTOutputStreams>'}}
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|   return nextOutputStream ? nextOutputStream : self; // expected-warning {{incompatible operand types ('id<DTOutputStreams>' and 'DTFilterOutputStream2 *')}}
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| }
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| @end
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| 
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| // No @interface declaration for DTFilterOutputStream3
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| @implementation DTFilterOutputStream3 // expected-warning {{cannot find interface declaration for 'DTFilterOutputStream3'}} \
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| 				      // expected-note {{receiver is instance of class declared here}}
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| - (id)initWithNextOutputStream:(id <DTOutputStreams>) outputStream {
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|   id <DTOutputStreams> nextOutputStream = [self nextOutputStream]; // expected-warning {{method '-nextOutputStream' not found (return type defaults to 'id')}}
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|   self = nextOutputStream; // expected-warning {{assigning to 'DTFilterOutputStream3 *' from incompatible type 'id<DTOutputStreams>'}}
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|   return nextOutputStream ? nextOutputStream : self; // expected-warning {{incompatible operand types ('id<DTOutputStreams>' and 'DTFilterOutputStream3 *')}}
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| }
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| @end
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| 
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| //
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| 
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| @protocol P0
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| @property int intProp;
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| @end
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| @protocol P1
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| @end
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| @protocol P2
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| @end
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| @protocol P3 <P1>
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| @end
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| @protocol P4 <P1>
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| @end
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| 
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| @interface A <P0>
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| @end
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| 
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| @interface B : A
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| @end
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| 
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| @interface C
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| @end
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| 
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| @interface D
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| @end
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| 
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| @interface E : A
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| @end
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| 
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| void f0(id<P0> x) {
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|   x.intProp = 1;
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| }
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| 
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| void f1(int cond, id<P0> x, id<P0> y) {
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|   (cond ? x : y).intProp = 1;
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| }
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| 
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| void f2(int cond, id<P0> x, A *y) {
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|   (cond ? x : y).intProp = 1;
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| }
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| 
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| void f3(int cond, id<P0> x, B *y) {
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|   (cond ? x : y).intProp = 1;
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| }
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| 
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| void f4(int cond, id x, B *y) {
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|   (cond ? x : y).intProp = 1; // expected-error {{property 'intProp' not found on object of type 'id'}}
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| }
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| 
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| void f5(int cond, id<P0> x, C *y) {
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|   (cond ? x : y).intProp = 1; // expected-warning {{incompatible operand types ('id<P0>' and 'C *')}} expected-error {{property 'intProp' not found on object of type 'id'}}
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| }
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| 
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| void f6(int cond, C *x, D *y) {
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|   (cond ? x : y).intProp = 1; // expected-warning {{incompatible operand types}}, expected-error {{property 'intProp' not found on object of type 'id'}}
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| }
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| 
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| id f7(int a, id<P0> x, A* p) {
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|   return a ? x : p;
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| }
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| 
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| int f8(int a, A<P0> *x, A *y) {
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|   return [ (a ? x : y ) intProp ];
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| }
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| 
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| void f9(int a, A<P0> *x, A<P1> *y) {
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|   id l0 = (a ? x : y );     // Ok. y is of A<P1> object type and A is qualified by P0.
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|   A<P0> *l1 = (a ? x : y ); // Ok. y is of A<P1> object type and A is qualified by P0.
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|   A<P1> *l2 = (a ? x : y ); // expected-warning {{incompatible pointer types initializing 'A<P1> *' with an expression of type 'A<P0> *'}}
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|   (void)[ (a ? x : y ) intProp ]; // Ok. Common type is A<P0> * and P0's property intProp is accessed.
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| }
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| 
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| void f10(int a, id<P0> x, id y) {
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|   [ (a ? x : y ) intProp ];
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| }
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| 
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| void f11(int a, id<P0> x, id<P1> y) {
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|   [ (a ? x : y ) intProp ]; // expected-warning {{incompatible operand types ('id<P0>' and 'id<P1>')}}
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| }
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| 
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| void f12(int a, A<P0> *x, A<P1> *y) {
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|   A<P1>* l0 = (a ? x : y ); // expected-warning {{incompatible pointer types initializing 'A<P1> *' with an expression of type 'A<P0> *'}}
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| }
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| 
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| void f13(int a, B<P3, P0> *x, E<P0, P4> *y) {
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|   int *ip = a ? x : y; // expected-warning{{expression of type 'A<P1> *'}}
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| }
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