src/cobalt/bindings/v8c/templates/dictionary-conversion.cc.template

{#
 # Copyright 2017 Google Inc. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #}
// Copyright {{today.year}} Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// clang-format off

// This file has been auto-generated by {{code_generator}}. DO NOT MODIFY!
// Auto-generated from template: {{template_path}}

{% if conditional %}
#if defined({{conditional}})
{% endif %}

{% block includes %}
#include "{{generated_conversion_include}}"

#include "{{header_file}}"

#include "cobalt/script/exception_state.h"
#include "v8/include/v8.h"
{% for include in includes %}
#include "{{include}}"
{% endfor %}
{% endblock includes %}

using {{components|join('::')}}::{{class_name}};
{% for used_class in forward_declarations %}
{% if used_class.conditional %}
#if defined({{used_class.conditional}})
{% endif %}
using {{used_class.fully_qualified_name}};
{% if used_class.conditional %}
#endif  // defined({{used_class.conditional}})
{% endif %}
{% endfor %}

namespace cobalt {
namespace script {
namespace v8c {

void ToJSValue(
    v8::Isolate* isolate,
    const {{class_name}}& in_dictionary,
    v8::Local<v8::Value>* out_value) {
  // Create a new object that will hold the dictionary values.
  V8cGlobalEnvironment* global_environment = V8cGlobalEnvironment::GetFromIsolate(isolate);
  v8::Local<v8::Context> context = global_environment->context();
  v8::Local<v8::Object> dictionary_object = v8::Object::New(isolate);
{% for member in members %}
  if (in_dictionary.has_{{member.name}}()) {
    v8::Local<v8::Value> member_value;
    ToJSValue(isolate, in_dictionary.{{member.name}}(), &member_value);
    v8::Maybe<bool> maybe_result = dictionary_object->DefineOwnProperty(
      context,
      v8::String::NewFromUtf8(
        isolate,
        "{{member.idl_name}}",
        v8::NewStringType::kInternalized
      ).ToLocalChecked(),
      member_value
    );
    DCHECK(maybe_result.FromJust());
  }
{% endfor %}
  *out_value = dictionary_object;
}

void FromJSValue(v8::Isolate* isolate, v8::Local<v8::Value> value,
                 int conversion_flags, ExceptionState* exception_state,
                 {{class_name}}* out_dictionary) {
  DCHECK_EQ(0, conversion_flags) << "Unexpected conversion flags.";

{% if parent %}
  FromJSValue(isolate, value, conversion_flags, exception_state, static_cast<{{parent}}*>(out_dictionary));
{% endif %}

  // https://heycam.github.io/webidl/#es-dictionary
  if (value->IsNullOrUndefined()) {
    // The default constructor will assign appropriate values to dictionary
    // members with default values and leave the others unset.
    *out_dictionary = {{class_name}}();
    return;
  }

  if (!value->IsObject()) {
    // 1. If Type(V) is not Undefined, Null or Object, then throw a TypeError.
    exception_state->SetSimpleException(kNotObjectType);
    return;
  }

  V8cGlobalEnvironment* global_environment = V8cGlobalEnvironment::GetFromIsolate(isolate);
  v8::Local<v8::Context> context = global_environment->context();
  v8::MaybeLocal<v8::Object> maybe_dictionary_object = value->ToObject(context);
  v8::Local<v8::Object> dictionary_object;
  if (!maybe_dictionary_object.ToLocal(&dictionary_object)) {
    NOTREACHED();
    exception_state->SetSimpleException(kNotObjectType);
    return;
  }

{% for member in members %}
  {
    v8::MaybeLocal<v8::Value> maybe_member_value = dictionary_object->Get(
        context,
        v8::String::NewFromUtf8(isolate, "{{member.idl_name}}", v8::NewStringType::kInternalized).ToLocalChecked());
    v8::Local<v8::Value> member_value;
    if (!maybe_member_value.ToLocal(&member_value)) {
      exception_state->SetSimpleException(kSimpleError);
      return;
    }

    if (!member_value->IsUndefined()) {
  {% if not member.is_script_value %}
      {{member.type}} converted_value;
      FromJSValue(isolate,
                  member_value,
                  {{member.conversion_flags}},
                  exception_state,
                  &converted_value);
      out_dictionary->set_{{member.name}}(converted_value);
  {% else %}
      TypeTraits<::cobalt::script::ValueHandle >::ConversionType converted_value;
      FromJSValue(isolate,
                  member_value,
                  {{member.conversion_flags}},
                  exception_state,
                  &converted_value);
      out_dictionary->set_{{member.name}}(&converted_value);
  {% endif %}
    }
  }
{% endfor %}
}

}  // namespace v8c
}  // namespace script
}  // namespace cobalt

{% if conditional %}
#endif  // defined({{conditional}})
{% endif %}