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// Copyright 2016 The Chromium 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 THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_SOURCE_LOCATION_H_
#define THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_SOURCE_LOCATION_H_
#include <v8-inspector-protocol.h>
#include <memory>
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
class ExecutionContext;
class TracedValue;
class CORE_EXPORT SourceLocation {
public:
// Zero lineNumber and columnNumber mean unknown. Captures current stack
// trace.
static std::unique_ptr<SourceLocation> Capture(const String& url,
unsigned line_number,
unsigned column_number);
// Shortcut when location is unknown. Tries to capture call stack or parsing
// location if available.
static std::unique_ptr<SourceLocation> Capture(ExecutionContext* = nullptr);
static std::unique_ptr<SourceLocation> FromMessage(v8::Isolate*,
v8::Local<v8::Message>,
ExecutionContext*);
static std::unique_ptr<SourceLocation> FromFunction(v8::Local<v8::Function>);
// Forces full stack trace.
static std::unique_ptr<SourceLocation> CaptureWithFullStackTrace();
static std::unique_ptr<SourceLocation> Create(
const String& url,
unsigned line_number,
unsigned column_number,
std::unique_ptr<v8_inspector::V8StackTrace>,
int script_id = 0);
~SourceLocation();
bool IsUnknown() const {
return url_.IsNull() && !script_id_ && !line_number_;
}
const String& Url() const { return url_; }
unsigned LineNumber() const { return line_number_; }
unsigned ColumnNumber() const { return column_number_; }
int ScriptId() const { return script_id_; }
std::unique_ptr<v8_inspector::V8StackTrace> TakeStackTrace() {
return std::move(stack_trace_);
}
std::unique_ptr<SourceLocation> Clone()
const; // Safe to pass between threads.
// No-op when stack trace is unknown.
void ToTracedValue(TracedValue*, const char* name) const;
// Could be null string when stack trace is unknown.
String ToString() const;
// Could be null when stack trace is unknown.
std::unique_ptr<v8_inspector::protocol::Runtime::API::StackTrace>
BuildInspectorObject() const;
private:
SourceLocation(const String& url,
unsigned line_number,
unsigned column_number,
std::unique_ptr<v8_inspector::V8StackTrace>,
int script_id);
static std::unique_ptr<SourceLocation> CreateFromNonEmptyV8StackTrace(
std::unique_ptr<v8_inspector::V8StackTrace>,
int script_id);
String url_;
unsigned line_number_;
unsigned column_number_;
std::unique_ptr<v8_inspector::V8StackTrace> stack_trace_;
int script_id_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_SOURCE_LOCATION_H_
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