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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gin/try_catch.h"
#include <sstream>
#include "gin/converter.h"
#include "v8/include/v8-message.h"
namespace {
v8::Local<v8::String> GetSourceLine(v8::Isolate* isolate,
v8::Local<v8::Message> message) {
auto maybe = message->GetSourceLine(isolate->GetCurrentContext());
v8::Local<v8::String> source_line;
return maybe.ToLocal(&source_line) ? source_line : v8::String::Empty(isolate);
}
} // namespace
namespace gin {
TryCatch::TryCatch(v8::Isolate* isolate)
: isolate_(isolate), try_catch_(isolate) {
}
TryCatch::~TryCatch() = default;
bool TryCatch::HasCaught() {
return try_catch_.HasCaught();
}
std::string TryCatch::GetStackTrace() {
if (!HasCaught()) {
return "";
}
std::stringstream ss;
v8::Local<v8::Message> message = try_catch_.Message();
ss << V8ToString(isolate_, message->Get()) << std::endl
<< V8ToString(isolate_, GetSourceLine(isolate_, message)) << std::endl;
v8::Local<v8::StackTrace> trace = message->GetStackTrace();
if (trace.IsEmpty())
return ss.str();
int len = trace->GetFrameCount();
for (int i = 0; i < len; ++i) {
v8::Local<v8::StackFrame> frame = trace->GetFrame(isolate_, i);
ss << V8ToString(isolate_, frame->GetScriptName()) << ":"
<< frame->GetLineNumber() << ":" << frame->GetColumn() << ": "
<< V8ToString(isolate_, frame->GetFunctionName()) << std::endl;
}
return ss.str();
}
} // namespace gin
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