74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE.chromium file.
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#include "native_mate/arguments.h"
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#include "base/strings/stringprintf.h"
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#include "native_mate/converter.h"
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namespace mate {
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namespace {
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std::string V8TypeAsString(v8::Local<v8::Value> value) {
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if (value.IsEmpty())
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return "<empty handle>";
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if (value->IsUndefined())
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return "undefined";
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if (value->IsNull())
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return "null";
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std::string result;
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if (!ConvertFromV8(NULL, value, &result))
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return std::string();
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return result;
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}
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} // namespace
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Arguments::Arguments()
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: isolate_(NULL),
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info_(NULL),
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next_(0),
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insufficient_arguments_(false) {
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}
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Arguments::Arguments(const MATE_METHOD_ARGS_TYPE& info)
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: isolate_(info.GetIsolate()),
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info_(&info),
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next_(0),
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insufficient_arguments_(false) {
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}
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Arguments::~Arguments() {
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}
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v8::Local<v8::Value> Arguments::PeekNext() const {
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if (next_ >= info_->Length())
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return v8::Local<v8::Value>();
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return (*info_)[next_];
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}
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v8::Local<v8::Value> Arguments::ThrowError() const {
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if (insufficient_arguments_)
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return ThrowTypeError("Insufficient number of arguments.");
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return ThrowTypeError(base::StringPrintf(
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"Error processing argument at index %d, conversion failure from %s",
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next_, V8TypeAsString((*info_)[next_]).c_str()));
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}
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v8::Local<v8::Value> Arguments::ThrowError(const std::string& message) const {
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MATE_THROW_EXCEPTION(isolate_, v8::Exception::Error(
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StringToV8(isolate_, message)));
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return MATE_UNDEFINED(isolate_);
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}
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v8::Local<v8::Value> Arguments::ThrowTypeError(
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const std::string& message) const {
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MATE_THROW_EXCEPTION(isolate_, v8::Exception::TypeError(
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StringToV8(isolate_, message)));
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return MATE_UNDEFINED(isolate_);
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}
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} // namespace mate
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