mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
/*
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* Copyright (C) 2016-2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "ExceptionScope.h"
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#include <wtf/StackTrace.h>
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#include <wtf/StringPrintStream.h>
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#include <wtf/Threading.h>
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namespace JSC {
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#if ENABLE(EXCEPTION_SCOPE_VERIFICATION)
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ExceptionScope::ExceptionScope(VM& vm, ExceptionEventLocation location)
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: m_vm(vm)
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, m_previousScope(vm.m_topExceptionScope)
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, m_location(location)
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, m_recursionDepth(m_previousScope ? m_previousScope->m_recursionDepth + 1 : 0)
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{
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m_vm.m_topExceptionScope = this;
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}
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ExceptionScope::~ExceptionScope()
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{
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RELEASE_ASSERT(m_vm.m_topExceptionScope);
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m_vm.m_topExceptionScope = m_previousScope;
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}
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CString ExceptionScope::unexpectedExceptionMessage()
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{
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StringPrintStream out;
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out.println("Unexpected exception observed on thread ", Thread::current(), " at:");
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auto currentStack = StackTrace::captureStackTrace(Options::unexpectedExceptionStackTraceLimit(), 1);
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currentStack->dump(out, " ");
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if (!m_vm.nativeStackTraceOfLastThrow())
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return CString();
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out.println("The exception was thrown from thread ", *m_vm.throwingThread(), " at:");
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m_vm.nativeStackTraceOfLastThrow()->dump(out, " ");
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return out.toCString();
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}
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#endif // ENABLE(EXCEPTION_SCOPE_VERIFICATION)
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} // namespace JSC
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