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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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68
build/clang-plugin/tests/TestAssertWithAssignment.cpp Normal file
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#include "mozilla/MacroArgs.h"
static __attribute__((always_inline)) bool MOZ_AssertAssignmentTest(bool expr) {
return expr;
}
#define MOZ_UNLIKELY(x) (__builtin_expect(!!(x), 0))
#define MOZ_CRASH() do { } while(0)
#define MOZ_CHECK_ASSERT_ASSIGNMENT(expr) MOZ_AssertAssignmentTest(!!(expr))
#define MOZ_ASSERT_HELPER1(expr) \
do { \
if (MOZ_UNLIKELY(!MOZ_CHECK_ASSERT_ASSIGNMENT(expr))) { \
MOZ_CRASH();\
} \
} while(0) \
/* Now the two-argument form. */
#define MOZ_ASSERT_HELPER2(expr, explain) \
do { \
if (MOZ_UNLIKELY(!MOZ_CHECK_ASSERT_ASSIGNMENT(expr))) { \
MOZ_CRASH();\
} \
} while(0) \
#define MOZ_RELEASE_ASSERT_GLUE(a, b) a b
#define MOZ_RELEASE_ASSERT(...) \
MOZ_RELEASE_ASSERT_GLUE( \
MOZ_PASTE_PREFIX_AND_ARG_COUNT(MOZ_ASSERT_HELPER, __VA_ARGS__), \
(__VA_ARGS__))
#define MOZ_ASSERT(...) MOZ_RELEASE_ASSERT(__VA_ARGS__)
void FunctionTest(int p) {
MOZ_ASSERT(p = 1); // expected-error {{Forbidden assignment in assert expression}}
}
void FunctionTest2(int p) {
MOZ_ASSERT(((p = 1))); // expected-error {{Forbidden assignment in assert expression}}
}
void FunctionTest3(int p) {
MOZ_ASSERT(p != 3);
}
class TestOverloading {
int value;
public:
explicit TestOverloading(int _val) : value(_val) {}
// different operators
explicit operator bool() const { return true; }
TestOverloading& operator=(const int _val) { value = _val; return *this; }
int& GetInt() {return value;}
};
void TestOverloadingFunc() {
TestOverloading p(2);
int f;
MOZ_ASSERT(p);
MOZ_ASSERT(p = 3); // expected-error {{Forbidden assignment in assert expression}}
MOZ_ASSERT(p, "p is not valid");
MOZ_ASSERT(p = 3, "p different than 3"); // expected-error {{Forbidden assignment in assert expression}}
MOZ_ASSERT(p.GetInt() = 2); // expected-error {{Forbidden assignment in assert expression}}
MOZ_ASSERT(p.GetInt() == 2);
MOZ_ASSERT(p.GetInt() == 2, f = 3);
}