| // Copyright 2006-2008 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef V8_CHECKS_H_ |
| #define V8_CHECKS_H_ |
| |
| #include <string.h> |
| |
| #include "flags.h" |
| |
| extern "C" void V8_Fatal(const char* file, int line, const char* format, ...); |
| void API_Fatal(const char* location, const char* format, ...); |
| |
| // The FATAL, UNREACHABLE and UNIMPLEMENTED macros are useful during |
| // development, but they should not be relied on in the final product. |
| #ifdef DEBUG |
| #define FATAL(msg) \ |
| V8_Fatal(__FILE__, __LINE__, "%s", (msg)) |
| #define UNIMPLEMENTED() \ |
| V8_Fatal(__FILE__, __LINE__, "unimplemented code") |
| #define UNREACHABLE() \ |
| V8_Fatal(__FILE__, __LINE__, "unreachable code") |
| #else |
| #define FATAL(msg) \ |
| V8_Fatal("", 0, "%s", (msg)) |
| #define UNIMPLEMENTED() \ |
| V8_Fatal("", 0, "unimplemented code") |
| #define UNREACHABLE() ((void) 0) |
| #endif |
| |
| |
| // Used by the CHECK macro -- should not be called directly. |
| static inline void CheckHelper(const char* file, |
| int line, |
| const char* source, |
| bool condition) { |
| if (!condition) |
| V8_Fatal(file, line, "CHECK(%s) failed", source); |
| } |
| |
| |
| // The CHECK macro checks that the given condition is true; if not, it |
| // prints a message to stderr and aborts. |
| #define CHECK(condition) CheckHelper(__FILE__, __LINE__, #condition, condition) |
| |
| |
| // Helper function used by the CHECK_EQ function when given int |
| // arguments. Should not be called directly. |
| static inline void CheckEqualsHelper(const char* file, int line, |
| const char* expected_source, int expected, |
| const char* value_source, int value) { |
| if (expected != value) { |
| V8_Fatal(file, line, |
| "CHECK_EQ(%s, %s) failed\n# Expected: %i\n# Found: %i", |
| expected_source, value_source, expected, value); |
| } |
| } |
| |
| |
| // Helper function used by the CHECK_EQ function when given int64_t |
| // arguments. Should not be called directly. |
| static inline void CheckEqualsHelper(const char* file, int line, |
| const char* expected_source, |
| int64_t expected, |
| const char* value_source, |
| int64_t value) { |
| if (expected != value) { |
| // Print int64_t values in hex, as two int32s, |
| // to avoid platform-dependencies. |
| V8_Fatal(file, line, |
| "CHECK_EQ(%s, %s) failed\n#" |
| " Expected: 0x%08x%08x\n# Found: 0x%08x%08x", |
| expected_source, value_source, |
| static_cast<uint32_t>(expected >> 32), |
| static_cast<uint32_t>(expected), |
| static_cast<uint32_t>(value >> 32), |
| static_cast<uint32_t>(value)); |
| } |
| } |
| |
| |
| // Helper function used by the CHECK_NE function when given int |
| // arguments. Should not be called directly. |
| static inline void CheckNonEqualsHelper(const char* file, |
| int line, |
| const char* unexpected_source, |
| int unexpected, |
| const char* value_source, |
| int value) { |
| if (unexpected == value) { |
| V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %i", |
| unexpected_source, value_source, value); |
| } |
| } |
| |
| |
| // Helper function used by the CHECK function when given string |
| // arguments. Should not be called directly. |
| static inline void CheckEqualsHelper(const char* file, |
| int line, |
| const char* expected_source, |
| const char* expected, |
| const char* value_source, |
| const char* value) { |
| if ((expected == NULL && value != NULL) || |
| (expected != NULL && value == NULL) || |
| (expected != NULL && value != NULL && strcmp(expected, value) != 0)) { |
| V8_Fatal(file, line, |
| "CHECK_EQ(%s, %s) failed\n# Expected: %s\n# Found: %s", |
| expected_source, value_source, expected, value); |
| } |
| } |
| |
| |
| static inline void CheckNonEqualsHelper(const char* file, |
| int line, |
| const char* expected_source, |
| const char* expected, |
| const char* value_source, |
| const char* value) { |
| if (expected == value || |
| (expected != NULL && value != NULL && strcmp(expected, value) == 0)) { |
| V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %s", |
| expected_source, value_source, value); |
| } |
| } |
| |
| |
| // Helper function used by the CHECK function when given pointer |
| // arguments. Should not be called directly. |
| static inline void CheckEqualsHelper(const char* file, |
| int line, |
| const char* expected_source, |
| const void* expected, |
| const char* value_source, |
| const void* value) { |
| if (expected != value) { |
| V8_Fatal(file, line, |
| "CHECK_EQ(%s, %s) failed\n# Expected: %p\n# Found: %p", |
| expected_source, value_source, |
| expected, value); |
| } |
| } |
| |
| |
| static inline void CheckNonEqualsHelper(const char* file, |
| int line, |
| const char* expected_source, |
| const void* expected, |
| const char* value_source, |
| const void* value) { |
| if (expected == value) { |
| V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %p", |
| expected_source, value_source, value); |
| } |
| } |
| |
| |
| // Helper function used by the CHECK function when given floating |
| // point arguments. Should not be called directly. |
| static inline void CheckEqualsHelper(const char* file, |
| int line, |
| const char* expected_source, |
| double expected, |
| const char* value_source, |
| double value) { |
| // Force values to 64 bit memory to truncate 80 bit precision on IA32. |
| volatile double* exp = new double[1]; |
| *exp = expected; |
| volatile double* val = new double[1]; |
| *val = value; |
| if (*exp != *val) { |
| V8_Fatal(file, line, |
| "CHECK_EQ(%s, %s) failed\n# Expected: %f\n# Found: %f", |
| expected_source, value_source, *exp, *val); |
| } |
| delete[] exp; |
| delete[] val; |
| } |
| |
| |
| static inline void CheckNonEqualsHelper(const char* file, |
| int line, |
| const char* expected_source, |
| double expected, |
| const char* value_source, |
| double value) { |
| // Force values to 64 bit memory to truncate 80 bit precision on IA32. |
| volatile double* exp = new double[1]; |
| *exp = expected; |
| volatile double* val = new double[1]; |
| *val = value; |
| if (*exp == *val) { |
| V8_Fatal(file, line, |
| "CHECK_NE(%s, %s) failed\n# Value: %f", |
| expected_source, value_source, *val); |
| } |
| delete[] exp; |
| delete[] val; |
| } |
| |
| |
| namespace v8 { |
| class Value; |
| template <class T> class Handle; |
| } |
| |
| |
| void CheckNonEqualsHelper(const char* file, |
| int line, |
| const char* unexpected_source, |
| v8::Handle<v8::Value> unexpected, |
| const char* value_source, |
| v8::Handle<v8::Value> value); |
| |
| |
| void CheckEqualsHelper(const char* file, |
| int line, |
| const char* expected_source, |
| v8::Handle<v8::Value> expected, |
| const char* value_source, |
| v8::Handle<v8::Value> value); |
| |
| |
| #define CHECK_EQ(expected, value) CheckEqualsHelper(__FILE__, __LINE__, \ |
| #expected, expected, #value, value) |
| |
| |
| #define CHECK_NE(unexpected, value) CheckNonEqualsHelper(__FILE__, __LINE__, \ |
| #unexpected, unexpected, #value, value) |
| |
| |
| #define CHECK_GT(a, b) CHECK((a) > (b)) |
| #define CHECK_GE(a, b) CHECK((a) >= (b)) |
| |
| |
| // This is inspired by the static assertion facility in boost. This |
| // is pretty magical. If it causes you trouble on a platform you may |
| // find a fix in the boost code. |
| template <bool> class StaticAssertion; |
| template <> class StaticAssertion<true> { }; |
| // This macro joins two tokens. If one of the tokens is a macro the |
| // helper call causes it to be resolved before joining. |
| #define SEMI_STATIC_JOIN(a, b) SEMI_STATIC_JOIN_HELPER(a, b) |
| #define SEMI_STATIC_JOIN_HELPER(a, b) a##b |
| // Causes an error during compilation of the condition is not |
| // statically known to be true. It is formulated as a typedef so that |
| // it can be used wherever a typedef can be used. Beware that this |
| // actually causes each use to introduce a new defined type with a |
| // name depending on the source line. |
| template <int> class StaticAssertionHelper { }; |
| #define STATIC_CHECK(test) \ |
| typedef \ |
| StaticAssertionHelper<sizeof(StaticAssertion<static_cast<bool>(test)>)> \ |
| SEMI_STATIC_JOIN(__StaticAssertTypedef__, __LINE__) |
| |
| |
| // The ASSERT macro is equivalent to CHECK except that it only |
| // generates code in debug builds. |
| #ifdef DEBUG |
| #define ASSERT_RESULT(expr) CHECK(expr) |
| #define ASSERT(condition) CHECK(condition) |
| #define ASSERT_EQ(v1, v2) CHECK_EQ(v1, v2) |
| #define ASSERT_NE(v1, v2) CHECK_NE(v1, v2) |
| #define ASSERT_GE(v1, v2) CHECK_GE(v1, v2) |
| #define SLOW_ASSERT(condition) if (FLAG_enable_slow_asserts) CHECK(condition) |
| #else |
| #define ASSERT_RESULT(expr) (expr) |
| #define ASSERT(condition) ((void) 0) |
| #define ASSERT_EQ(v1, v2) ((void) 0) |
| #define ASSERT_NE(v1, v2) ((void) 0) |
| #define ASSERT_GE(v1, v2) ((void) 0) |
| #define SLOW_ASSERT(condition) ((void) 0) |
| #endif |
| // Static asserts has no impact on runtime performance, so they can be |
| // safely enabled in release mode. Moreover, the ((void) 0) expression |
| // obeys different syntax rules than typedef's, e.g. it can't appear |
| // inside class declaration, this leads to inconsistency between debug |
| // and release compilation modes behaviour. |
| #define STATIC_ASSERT(test) STATIC_CHECK(test) |
| |
| |
| #define ASSERT_TAG_ALIGNED(address) \ |
| ASSERT((reinterpret_cast<intptr_t>(address) & kHeapObjectTagMask) == 0) |
| |
| #define ASSERT_SIZE_TAG_ALIGNED(size) ASSERT((size & kHeapObjectTagMask) == 0) |
| |
| #define ASSERT_NOT_NULL(p) ASSERT_NE(NULL, p) |
| |
| #endif // V8_CHECKS_H_ |