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Unified Diff: src/inspector/V8StackTraceImpl.cpp

Issue 2300823002: Revert of [inspector] Initial import of v8_inspector. (Closed)
Patch Set: Created 4 years, 4 months ago
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Index: src/inspector/V8StackTraceImpl.cpp
diff --git a/src/inspector/V8StackTraceImpl.cpp b/src/inspector/V8StackTraceImpl.cpp
deleted file mode 100644
index 9c711e60ab54095e4a9319ac331f0e250907689b..0000000000000000000000000000000000000000
--- a/src/inspector/V8StackTraceImpl.cpp
+++ /dev/null
@@ -1,267 +0,0 @@
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "src/inspector/V8StackTraceImpl.h"
-
-#include "src/inspector/StringUtil.h"
-#include "src/inspector/V8Debugger.h"
-#include "src/inspector/protocol/Protocol.h"
-
-#include <v8-debug.h>
-#include <v8-profiler.h>
-#include <v8-version.h>
-
-namespace v8_inspector {
-
-namespace {
-
-static const v8::StackTrace::StackTraceOptions stackTraceOptions = static_cast<v8::StackTrace::StackTraceOptions>(
- v8::StackTrace::kLineNumber |
- v8::StackTrace::kColumnOffset |
- v8::StackTrace::kScriptId |
- v8::StackTrace::kScriptNameOrSourceURL |
- v8::StackTrace::kFunctionName);
-
-V8StackTraceImpl::Frame toFrame(v8::Local<v8::StackFrame> frame)
-{
- String16 scriptId = String16::fromInteger(frame->GetScriptId());
- String16 sourceName;
- v8::Local<v8::String> sourceNameValue(frame->GetScriptNameOrSourceURL());
- if (!sourceNameValue.IsEmpty())
- sourceName = toProtocolString(sourceNameValue);
-
- String16 functionName;
- v8::Local<v8::String> functionNameValue(frame->GetFunctionName());
- if (!functionNameValue.IsEmpty())
- functionName = toProtocolString(functionNameValue);
-
- int sourceLineNumber = frame->GetLineNumber();
- int sourceColumn = frame->GetColumn();
- return V8StackTraceImpl::Frame(functionName, scriptId, sourceName, sourceLineNumber, sourceColumn);
-}
-
-void toFramesVector(v8::Local<v8::StackTrace> stackTrace, std::vector<V8StackTraceImpl::Frame>& frames, size_t maxStackSize, v8::Isolate* isolate)
-{
- DCHECK(isolate->InContext());
- int frameCount = stackTrace->GetFrameCount();
- if (frameCount > static_cast<int>(maxStackSize))
- frameCount = maxStackSize;
- for (int i = 0; i < frameCount; i++) {
- v8::Local<v8::StackFrame> stackFrame = stackTrace->GetFrame(i);
- frames.push_back(toFrame(stackFrame));
- }
-}
-
-} // namespace
-
-V8StackTraceImpl::Frame::Frame()
- : m_functionName("undefined")
- , m_scriptId("")
- , m_scriptName("undefined")
- , m_lineNumber(0)
- , m_columnNumber(0)
-{
-}
-
-V8StackTraceImpl::Frame::Frame(const String16& functionName, const String16& scriptId, const String16& scriptName, int lineNumber, int column)
- : m_functionName(functionName)
- , m_scriptId(scriptId)
- , m_scriptName(scriptName)
- , m_lineNumber(lineNumber)
- , m_columnNumber(column)
-{
- DCHECK(m_lineNumber != v8::Message::kNoLineNumberInfo);
- DCHECK(m_columnNumber != v8::Message::kNoColumnInfo);
-}
-
-V8StackTraceImpl::Frame::~Frame()
-{
-}
-
-// buildInspectorObject() and SourceLocation's toTracedValue() should set the same fields.
-// If either of them is modified, the other should be also modified.
-std::unique_ptr<protocol::Runtime::CallFrame> V8StackTraceImpl::Frame::buildInspectorObject() const
-{
- return protocol::Runtime::CallFrame::create()
- .setFunctionName(m_functionName)
- .setScriptId(m_scriptId)
- .setUrl(m_scriptName)
- .setLineNumber(m_lineNumber - 1)
- .setColumnNumber(m_columnNumber - 1)
- .build();
-}
-
-V8StackTraceImpl::Frame V8StackTraceImpl::Frame::clone() const
-{
- return Frame(m_functionName, m_scriptId, m_scriptName, m_lineNumber, m_columnNumber);
-}
-
-// static
-void V8StackTraceImpl::setCaptureStackTraceForUncaughtExceptions(v8::Isolate* isolate, bool capture)
-{
- isolate->SetCaptureStackTraceForUncaughtExceptions(capture, V8StackTraceImpl::maxCallStackSizeToCapture, stackTraceOptions);
-}
-
-// static
-std::unique_ptr<V8StackTraceImpl> V8StackTraceImpl::create(V8Debugger* debugger, int contextGroupId, v8::Local<v8::StackTrace> stackTrace, size_t maxStackSize, const String16& description)
-{
- v8::Isolate* isolate = v8::Isolate::GetCurrent();
- v8::HandleScope scope(isolate);
- std::vector<V8StackTraceImpl::Frame> frames;
- if (!stackTrace.IsEmpty())
- toFramesVector(stackTrace, frames, maxStackSize, isolate);
-
- int maxAsyncCallChainDepth = 1;
- V8StackTraceImpl* asyncCallChain = nullptr;
- if (debugger && maxStackSize > 1) {
- asyncCallChain = debugger->currentAsyncCallChain();
- maxAsyncCallChainDepth = debugger->maxAsyncCallChainDepth();
- }
- // Do not accidentally append async call chain from another group. This should not
- // happen if we have proper instrumentation, but let's double-check to be safe.
- if (contextGroupId && asyncCallChain && asyncCallChain->m_contextGroupId && asyncCallChain->m_contextGroupId != contextGroupId) {
- asyncCallChain = nullptr;
- maxAsyncCallChainDepth = 1;
- }
-
- // Only the top stack in the chain may be empty, so ensure that second stack is non-empty (it's the top of appended chain).
- if (asyncCallChain && asyncCallChain->isEmpty())
- asyncCallChain = asyncCallChain->m_parent.get();
-
- if (stackTrace.IsEmpty() && !asyncCallChain)
- return nullptr;
-
- std::unique_ptr<V8StackTraceImpl> result(new V8StackTraceImpl(contextGroupId, description, frames, asyncCallChain ? asyncCallChain->cloneImpl() : nullptr));
-
- // Crop to not exceed maxAsyncCallChainDepth.
- V8StackTraceImpl* deepest = result.get();
- while (deepest && maxAsyncCallChainDepth) {
- deepest = deepest->m_parent.get();
- maxAsyncCallChainDepth--;
- }
- if (deepest)
- deepest->m_parent.reset();
-
- return result;
-}
-
-std::unique_ptr<V8StackTraceImpl> V8StackTraceImpl::capture(V8Debugger* debugger, int contextGroupId, size_t maxStackSize, const String16& description)
-{
- v8::Isolate* isolate = v8::Isolate::GetCurrent();
- v8::HandleScope handleScope(isolate);
- v8::Local<v8::StackTrace> stackTrace;
- if (isolate->InContext()) {
-#if V8_MAJOR_VERSION >= 5
- isolate->GetCpuProfiler()->CollectSample();
-#endif
- stackTrace = v8::StackTrace::CurrentStackTrace(isolate, maxStackSize, stackTraceOptions);
- }
- return V8StackTraceImpl::create(debugger, contextGroupId, stackTrace, maxStackSize, description);
-}
-
-std::unique_ptr<V8StackTraceImpl> V8StackTraceImpl::cloneImpl()
-{
- std::vector<Frame> framesCopy(m_frames);
- return wrapUnique(new V8StackTraceImpl(m_contextGroupId, m_description, framesCopy, m_parent ? m_parent->cloneImpl() : nullptr));
-}
-
-std::unique_ptr<V8StackTrace> V8StackTraceImpl::clone()
-{
- std::vector<Frame> frames;
- for (size_t i = 0; i < m_frames.size(); i++)
- frames.push_back(m_frames.at(i).clone());
- return wrapUnique(new V8StackTraceImpl(m_contextGroupId, m_description, frames, nullptr));
-}
-
-V8StackTraceImpl::V8StackTraceImpl(int contextGroupId, const String16& description, std::vector<Frame>& frames, std::unique_ptr<V8StackTraceImpl> parent)
- : m_contextGroupId(contextGroupId)
- , m_description(description)
- , m_parent(std::move(parent))
-{
- m_frames.swap(frames);
-}
-
-V8StackTraceImpl::~V8StackTraceImpl()
-{
-}
-
-StringView V8StackTraceImpl::topSourceURL() const
-{
- DCHECK(m_frames.size());
- return toStringView(m_frames[0].m_scriptName);
-}
-
-int V8StackTraceImpl::topLineNumber() const
-{
- DCHECK(m_frames.size());
- return m_frames[0].m_lineNumber;
-}
-
-int V8StackTraceImpl::topColumnNumber() const
-{
- DCHECK(m_frames.size());
- return m_frames[0].m_columnNumber;
-}
-
-StringView V8StackTraceImpl::topFunctionName() const
-{
- DCHECK(m_frames.size());
- return toStringView(m_frames[0].m_functionName);
-}
-
-StringView V8StackTraceImpl::topScriptId() const
-{
- DCHECK(m_frames.size());
- return toStringView(m_frames[0].m_scriptId);
-}
-
-std::unique_ptr<protocol::Runtime::StackTrace> V8StackTraceImpl::buildInspectorObjectImpl() const
-{
- std::unique_ptr<protocol::Array<protocol::Runtime::CallFrame>> frames = protocol::Array<protocol::Runtime::CallFrame>::create();
- for (size_t i = 0; i < m_frames.size(); i++)
- frames->addItem(m_frames.at(i).buildInspectorObject());
-
- std::unique_ptr<protocol::Runtime::StackTrace> stackTrace = protocol::Runtime::StackTrace::create()
- .setCallFrames(std::move(frames)).build();
- if (!m_description.isEmpty())
- stackTrace->setDescription(m_description);
- if (m_parent)
- stackTrace->setParent(m_parent->buildInspectorObjectImpl());
- return stackTrace;
-}
-
-std::unique_ptr<protocol::Runtime::StackTrace> V8StackTraceImpl::buildInspectorObjectForTail(V8Debugger* debugger) const
-{
- v8::HandleScope handleScope(v8::Isolate::GetCurrent());
- // Next call collapses possible empty stack and ensures maxAsyncCallChainDepth.
- std::unique_ptr<V8StackTraceImpl> fullChain = V8StackTraceImpl::create(debugger, m_contextGroupId, v8::Local<v8::StackTrace>(), V8StackTraceImpl::maxCallStackSizeToCapture);
- if (!fullChain || !fullChain->m_parent)
- return nullptr;
- return fullChain->m_parent->buildInspectorObjectImpl();
-}
-
-std::unique_ptr<protocol::Runtime::API::StackTrace> V8StackTraceImpl::buildInspectorObject() const
-{
- return buildInspectorObjectImpl();
-}
-
-std::unique_ptr<StringBuffer> V8StackTraceImpl::toString() const
-{
- String16Builder stackTrace;
- for (size_t i = 0; i < m_frames.size(); ++i) {
- const Frame& frame = m_frames[i];
- stackTrace.append("\n at " + (frame.functionName().length() ? frame.functionName() : "(anonymous function)"));
- stackTrace.append(" (");
- stackTrace.append(frame.sourceURL());
- stackTrace.append(':');
- stackTrace.append(String16::fromInteger(frame.lineNumber()));
- stackTrace.append(':');
- stackTrace.append(String16::fromInteger(frame.columnNumber()));
- stackTrace.append(')');
- }
- String16 string = stackTrace.toString();
- return StringBufferImpl::adopt(string);
-}
-
-} // namespace v8_inspector
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