| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.coreFoundation.CFNumber,osx.cocoa.RetainCount -analyzer-store=region -verify -triple x86_64-apple-darwin9 %s |
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| 2 | |
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| 3 | typedef signed long CFIndex; |
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| 4 | typedef const struct __CFAllocator * CFAllocatorRef; |
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| 5 | enum { kCFNumberSInt8Type = 1, kCFNumberSInt16Type = 2, |
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| 6 | kCFNumberSInt32Type = 3, kCFNumberSInt64Type = 4, |
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| 7 | kCFNumberFloat32Type = 5, kCFNumberFloat64Type = 6, |
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| 8 | kCFNumberCharType = 7, kCFNumberShortType = 8, |
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| 9 | kCFNumberIntType = 9, kCFNumberLongType = 10, |
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| 10 | kCFNumberLongLongType = 11, kCFNumberFloatType = 12, |
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| 11 | kCFNumberDoubleType = 13, kCFNumberCFIndexType = 14, |
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| 12 | kCFNumberNSIntegerType = 15, kCFNumberCGFloatType = 16, |
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| 13 | kCFNumberMaxType = 16 }; |
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| 14 | typedef CFIndex CFNumberType; |
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| 15 | typedef const struct __CFNumber * CFNumberRef; |
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| 16 | typedef unsigned char Boolean; |
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| 17 | extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr); |
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| 18 | Boolean CFNumberGetValue(CFNumberRef number, CFNumberType theType, void *valuePtr); |
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| 19 | |
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| 20 | __attribute__((cf_returns_retained)) CFNumberRef f1(unsigned char x) { |
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| 21 | return CFNumberCreate(0, kCFNumberSInt16Type, &x); // expected-warning{{An 8-bit integer is used to initialize a CFNumber object that represents a 16-bit integer; 8 bits of the CFNumber value will be garbage}} |
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| 22 | } |
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| 23 | |
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| 24 | __attribute__((cf_returns_retained)) CFNumberRef f2(unsigned short x) { |
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| 25 | return CFNumberCreate(0, kCFNumberSInt8Type, &x); // expected-warning{{A 16-bit integer is used to initialize a CFNumber object that represents an 8-bit integer; 8 bits of the integer value will be lost}} |
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| 26 | } |
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| 27 | |
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| 28 | // test that the attribute overrides the naming convention. |
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| 29 | __attribute__((cf_returns_not_retained)) CFNumberRef CreateNum(unsigned char x) { |
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| 30 | return CFNumberCreate(0, kCFNumberSInt8Type, &x); // expected-warning{{leak}} |
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| 31 | } |
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| 32 | |
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| 33 | __attribute__((cf_returns_retained)) CFNumberRef f3(unsigned i) { |
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| 34 | return CFNumberCreate(0, kCFNumberLongType, &i); // expected-warning{{A 32-bit integer is used to initialize a CFNumber object that represents a 64-bit integer}} |
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| 35 | } |
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| 36 | |
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| 37 | unsigned char getValueTest1(CFNumberRef x) { |
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| 38 | unsigned char scalar = 0; |
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| 39 | CFNumberGetValue(x, kCFNumberSInt16Type, &scalar); // expected-warning{{A CFNumber object that represents a 16-bit integer is used to initialize an 8-bit integer; 8 bits of the CFNumber value will overwrite adjacent storage}} |
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| 40 | return scalar; |
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| 41 | } |
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| 42 | |
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| 43 | unsigned char getValueTest2(CFNumberRef x) { |
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| 44 | unsigned short scalar = 0; |
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| 45 | CFNumberGetValue(x, kCFNumberSInt8Type, &scalar); // expected-warning{{A CFNumber object that represents an 8-bit integer is used to initialize a 16-bit integer; 8 bits of the integer value will be garbage}} |
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| 46 | return scalar; |
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| 47 | } |
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| 48 | |
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