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Diffstat (limited to 'src/3rdparty/v8/src/checks.cc')
| -rw-r--r-- | src/3rdparty/v8/src/checks.cc | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/3rdparty/v8/src/checks.cc b/src/3rdparty/v8/src/checks.cc new file mode 100644 index 0000000..320fd6b --- /dev/null +++ b/src/3rdparty/v8/src/checks.cc @@ -0,0 +1,110 @@ +// 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. + +#include <stdarg.h> + +#include "v8.h" + +#include "platform.h" + +// TODO(isolates): is it necessary to lift this? +static int fatal_error_handler_nesting_depth = 0; + +// Contains protection against recursive calls (faults while handling faults). +extern "C" void V8_Fatal(const char* file, int line, const char* format, ...) { + fflush(stdout); + fflush(stderr); + fatal_error_handler_nesting_depth++; + // First time we try to print an error message + if (fatal_error_handler_nesting_depth < 2) { + i::OS::PrintError("\n\n#\n# Fatal error in %s, line %d\n# ", file, line); + va_list arguments; + va_start(arguments, format); + i::OS::VPrintError(format, arguments); + va_end(arguments); + i::OS::PrintError("\n#\n\n"); + } + // First two times we may try to print a stack dump. + if (fatal_error_handler_nesting_depth < 3) { + if (i::FLAG_stack_trace_on_abort) { + // Call this one twice on double fault + i::Isolate::Current()->PrintStack(); + } + } + i::OS::Abort(); +} + + +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) { + if (!expected->Equals(value)) { + v8::String::Utf8Value value_str(value); + v8::String::Utf8Value expected_str(expected); + V8_Fatal(file, line, + "CHECK_EQ(%s, %s) failed\n# Expected: %s\n# Found: %s", + expected_source, value_source, *expected_str, *value_str); + } +} + + +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) { + if (unexpected->Equals(value)) { + v8::String::Utf8Value value_str(value); + V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %s", + unexpected_source, value_source, *value_str); + } +} + + +void API_Fatal(const char* location, const char* format, ...) { + i::OS::PrintError("\n#\n# Fatal error in %s\n# ", location); + va_list arguments; + va_start(arguments, format); + i::OS::VPrintError(format, arguments); + va_end(arguments); + i::OS::PrintError("\n#\n\n"); + i::OS::Abort(); +} + + +namespace v8 { namespace internal { + + bool EnableSlowAsserts() { return FLAG_enable_slow_asserts; } + + intptr_t HeapObjectTagMask() { return kHeapObjectTagMask; } + +} } // namespace v8::internal + |