ObjectiveC. Continuing implementation of objc_bridge_related

attribute in sema and issuing a variety of diagnostics lazily 
for misuse of this attribute (and what to do) when converting 
from CF types to ObjectiveC types (and vice versa).
// rdar://15499111

llvm-svn: 196629

1 files changed, 31 insertions, 0 deletions

diff --git a/clang/test/SemaObjCXX/objcbridge-related-attribute.mm b/clang/test/SemaObjCXX/objcbridge-related-attribute.mm
new file mode 100644
index 00000000000..787e94081d7
--- /dev/null
+++ b/clang/test/SemaObjCXX/objcbridge-related-attribute.mm
@@ -0,0 +1,31 @@
+// RUN: %clang_cc1 -fsyntax-only -x objective-c++ -verify -Wno-objc-root-class %s
+// rdar://15499111
+typedef struct __attribute__((objc_bridge_related(NSColor,colorWithCGColor:,CGColor))) CGColor *CGColorRef; // expected-note 6 {{declared here}}
+
+@interface NSColor // expected-note 6 {{declared here}}
++ (NSColor *)colorWithCGColor:(CGColorRef)cgColor;
+- (CGColorRef)CGColor;
+@end
+
+@interface NSTextField
+- (void)setBackgroundColor:(NSColor *)color;
+- (NSColor *)backgroundColor;
+@end
+
+
+NSColor *Test1(NSColor *nsColor, CGColorRef newColor) {
+  nsColor = newColor; // expected-error {{'CGColorRef' (aka 'CGColor *') must be explicitly converted to 'NSColor *', use 'colorWithCGColor:' method for this conversion}}
+  NSColor *ns = newColor; // expected-error {{'CGColorRef' (aka 'CGColor *') must be explicitly converted to 'NSColor *', use 'colorWithCGColor:' method for this conversion}} \
+			  // expected-error {{cannot initialize a variable of type 'NSColor *' with an lvalue of type 'CGColorRef' (aka 'CGColor *')}}
+  return newColor; // expected-error {{'CGColorRef' (aka 'CGColor *') must be explicitly converted to 'NSColor *', use 'colorWithCGColor:' method for this conversion}} \
+		   // expected-error {{cannot initialize return object of type 'NSColor *' with an lvalue of type 'CGColorRef' (aka 'CGColor *')}}
+}
+
+CGColorRef Test2(NSColor *newColor, CGColorRef cgColor) {
+  cgColor = newColor; // expected-error {{'NSColor *' must be explicitly converted to 'CGColorRef' (aka 'CGColor *'), use 'CGColor' method for this conversion}}
+  CGColorRef cg = newColor; // expected-error {{'NSColor *' must be explicitly converted to 'CGColorRef' (aka 'CGColor *'), use 'CGColor' method for this conversion}} \
+			    // expected-error {{cannot initialize a variable of type 'CGColorRef' (aka 'CGColor *') with an lvalue of type 'NSColor *'}}
+  return newColor; // expected-error {{'NSColor *' must be explicitly converted to 'CGColorRef' (aka 'CGColor *'), use 'CGColor' method for this conversion}}\
+	    	   // expected-error {{cannot initialize return object of type 'CGColorRef' (aka 'CGColor *') with an lvalue of type 'NSColor *'}}
+}
+