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// 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.
#ifndef V8_INSPECTOR_V8STACKTRACEIMPL_H_
#define V8_INSPECTOR_V8STACKTRACEIMPL_H_
#include <vector>
#include "src/base/macros.h"
#include "src/inspector/protocol/Forward.h"
#include "src/inspector/protocol/Runtime.h"
#include "include/v8-inspector.h"
namespace v8_inspector {
class TracedValue;
class V8Debugger;
// Note: async stack trace may have empty top stack with non-empty tail to
// indicate
// that current native-only state had some async story.
// On the other hand, any non-top async stack is guaranteed to be non-empty.
class V8StackTraceImpl final : public V8StackTrace {
public:
static const size_t maxCallStackSizeToCapture = 200;
class Frame {
public:
Frame();
Frame(const String16& functionName, const String16& scriptId,
const String16& scriptName, int lineNumber, int column = 0);
~Frame();
const String16& functionName() const { return m_functionName; }
const String16& scriptId() const { return m_scriptId; }
const String16& sourceURL() const { return m_scriptName; }
int lineNumber() const { return m_lineNumber; }
int columnNumber() const { return m_columnNumber; }
Frame clone() const;
private:
friend class V8StackTraceImpl;
std::unique_ptr<protocol::Runtime::CallFrame> buildInspectorObject() const;
void toTracedValue(TracedValue*) const;
String16 m_functionName;
String16 m_scriptId;
String16 m_scriptName;
int m_lineNumber;
int m_columnNumber;
};
static void setCaptureStackTraceForUncaughtExceptions(v8::Isolate*,
bool capture);
static std::unique_ptr<V8StackTraceImpl> create(
V8Debugger*, int contextGroupId, v8::Local<v8::StackTrace>,
size_t maxStackSize, const String16& description = String16());
static std::unique_ptr<V8StackTraceImpl> capture(
V8Debugger*, int contextGroupId, size_t maxStackSize,
const String16& description = String16());
// This method drops the async chain. Use cloneImpl() instead.
std::unique_ptr<V8StackTrace> clone() override;
std::unique_ptr<V8StackTraceImpl> cloneImpl();
std::unique_ptr<protocol::Runtime::StackTrace> buildInspectorObjectForTail(
V8Debugger*) const;
std::unique_ptr<protocol::Runtime::StackTrace> buildInspectorObjectImpl()
const;
~V8StackTraceImpl() override;
// V8StackTrace implementation.
bool isEmpty() const override { return !m_frames.size(); };
StringView topSourceURL() const override;
int topLineNumber() const override;
int topColumnNumber() const override;
StringView topScriptId() const override;
StringView topFunctionName() const override;
std::unique_ptr<protocol::Runtime::API::StackTrace> buildInspectorObject()
const override;
std::unique_ptr<StringBuffer> toString() const override;
void setCreation(std::unique_ptr<V8StackTraceImpl> creation);
private:
V8StackTraceImpl(int contextGroupId, const String16& description,
std::vector<Frame>& frames,
std::unique_ptr<V8StackTraceImpl> parent);
int m_contextGroupId;
String16 m_description;
std::vector<Frame> m_frames;
std::unique_ptr<V8StackTraceImpl> m_parent;
std::unique_ptr<V8StackTraceImpl> m_creation;
DISALLOW_COPY_AND_ASSIGN(V8StackTraceImpl);
};
} // namespace v8_inspector
#endif // V8_INSPECTOR_V8STACKTRACEIMPL_H_
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