fe96e0b6be
property references to use a new PseudoObjectExpr expression which pairs a syntactic form of the expression with a set of semantic expressions implementing it. This should significantly reduce the complexity required elsewhere in the compiler to deal with these kinds of expressions (e.g. IR generation's special l-value kind, the static analyzer's Message abstraction), at the lower cost of specifically dealing with the odd AST structure of these expressions. It should also greatly simplify efforts to implement similar language features in the future, most notably Managed C++'s properties and indexed properties. Most of the effort here is in dealing with the various clients of the AST. I've gone ahead and simplified the ObjC rewriter's use of properties; other clients, like IR-gen and the static analyzer, have all the old complexity *and* all the new complexity, at least temporarily. Many thanks to Ted for writing and advising on the necessary changes to the static analyzer. I've xfailed a small diagnostics regression in the static analyzer at Ted's request. llvm-svn: 143867
43 lines
1.1 KiB
Objective-C
43 lines
1.1 KiB
Objective-C
// RUN: %clang_cc1 -analyze -analyzer-checker=core,experimental.core -analyzer-store=region -verify %s
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// Test function pointer casts. Currently we track function addresses using
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// loc::FunctionVal. Because casts can be arbitrary, do we need to model
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// functions with regions?
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typedef void* (*MyFuncTest1)(void);
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MyFuncTest1 test1_aux(void);
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void test1(void) {
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void *x;
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void* (*p)(void);
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p = ((void*) test1_aux());
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if (p != ((void*) 0)) x = (*p)();
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}
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// Test casts from void* to function pointers. Same issue as above:
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// should we eventually model function pointers using regions?
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void* test2(void *p) {
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MyFuncTest1 fp = (MyFuncTest1) p;
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return (*fp)();
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}
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// <radar://10087620>
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// A cast from int onjective C property reference to int.
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typedef signed char BOOL;
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@protocol NSObject - (BOOL)isEqual:(id)object; @end
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@interface NSObject <NSObject> {} - (id)init; @end
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typedef enum {
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EEOne,
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EETwo
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} RDR10087620Enum;
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@interface RDR10087620 : NSObject {
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RDR10087620Enum elem;
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}
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@property (readwrite, nonatomic) RDR10087620Enum elem;
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@end
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static void
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adium_media_ready_cb(RDR10087620 *InObj)
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{
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InObj.elem |= EEOne;
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}
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