/
arguments.cc
72 lines (57 loc) · 1.91 KB
/
arguments.cc
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// Copyright 2013 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.chromium file.
#include "native_mate/arguments.h"
#include "base/strings/stringprintf.h"
#include "native_mate/converter.h"
namespace mate {
namespace {
std::string V8TypeAsString(v8::Isolate* isolate, v8::Local<v8::Value> value) {
if (value.IsEmpty())
return "<empty handle>";
v8::MaybeLocal<v8::String> details =
value->ToDetailString(isolate->GetCurrentContext());
std::string result;
if (!details.IsEmpty())
ConvertFromV8(isolate, details.ToLocalChecked(), &result);
return result;
}
} // namespace
Arguments::Arguments()
: isolate_(NULL),
info_(NULL),
next_(0),
insufficient_arguments_(false) {
}
Arguments::Arguments(const v8::FunctionCallbackInfo<v8::Value>& info)
: isolate_(info.GetIsolate()),
info_(&info),
next_(0),
insufficient_arguments_(false) {
}
Arguments::~Arguments() {
}
v8::Local<v8::Value> Arguments::PeekNext() const {
if (next_ >= info_->Length())
return v8::Local<v8::Value>();
return (*info_)[next_];
}
v8::Local<v8::Value> Arguments::ThrowError() const {
if (insufficient_arguments_)
return ThrowTypeError("Insufficient number of arguments.");
return ThrowTypeError(base::StringPrintf(
"Error processing argument at index %d, conversion failure from %s",
next_, V8TypeAsString(isolate_, (*info_)[next_]).c_str()));
}
v8::Local<v8::Value> Arguments::ThrowError(const std::string& message) const {
isolate_->ThrowException(v8::Exception::Error(
StringToV8(isolate_, message)));
return v8::Undefined(isolate_);
}
v8::Local<v8::Value> Arguments::ThrowTypeError(
const std::string& message) const {
isolate_->ThrowException(v8::Exception::TypeError(
StringToV8(isolate_, message)));
return v8::Undefined(isolate_);
}
} // namespace mate