[headless] Refactor headless devtools client API.

headless/lib/browser/type_conversions_h.template

-// This file is generated
-
-// 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 HEADLESS_PUBLIC_DOMAINS_TYPE_CONVERSIONS_H_
-#define HEADLESS_PUBLIC_DOMAINS_TYPE_CONVERSIONS_H_
-
-#include "headless/public/domains/types.h"
-#include "headless/public/internal/value_conversions.h"
-
-namespace headless {
-namespace internal {
-
-{% for domain in api.domains %}
-  {% for type in domain.types %}
-    {% set namespace = domain.domain | camelcase_to_hacker_style %}
-    {% if "enum" in type %}
-template <>
-struct FromValue<{{namespace}}::{{type.id}}> {
-  static {{namespace}}::{{type.id}} Parse(const base::Value& value, ErrorReporter* errors) {
-      {% set default = namespace + '::' + type.id + '::' + type.enum[0] | sanitize_literal | dash_to_camelcase | camelcase_to_hacker_style | upper %}
-    std::string string_value;
-    if (!value.GetAsString(&string_value)) {
-      errors->AddError("string enum value expected");
-      {# Return an arbitrary enum member -- the caller will just ignore it. #}
-      return {{default}};
-    }
-      {% for literal in type.enum %}
-    if (string_value == "{{literal}}")
-      return {{namespace}}::{{type.id}}::{{literal | sanitize_literal | dash_to_camelcase | camelcase_to_hacker_style | upper }};
-      {% endfor %}
-    errors->AddError("invalid enum value");
-    return {{default}};
-  }
-};
-
-template <typename T>
-std::unique_ptr<base::Value> ToValueImpl(const {{namespace}}::{{type.id}}& value, T*) {
-  switch (value) {
-      {% for literal in type.enum %}
-    case {{namespace}}::{{type.id}}::{{literal | sanitize_literal | dash_to_camelcase | camelcase_to_hacker_style | upper }}:
-      return base::WrapUnique(new base::StringValue("{{literal}}"));
-      {% endfor %}
-  };
-  NOTREACHED();
-  return nullptr;
-}
-      {% continue %}
-    {% endif %}
-
-    {% if not (type.type == "object") or not ("properties" in type) %}{% continue %}{% endif %}
-template <>
-struct FromValue<{{namespace}}::{{type.id}}> {
-  static std::unique_ptr<{{namespace}}::{{type.id}}> Parse(const base::Value& value, ErrorReporter* errors) {
-    return {{namespace}}::{{type.id}}::Parse(value, errors);
-  }
-};
-
-template <typename T>
-std::unique_ptr<base::Value> ToValueImpl(const {{namespace}}::{{type.id}}& value, T*) {
-  return value.Serialize();
-}
-
-  {% endfor %}
-{% endfor %}
-
-template <typename T>
-std::unique_ptr<base::Value> ToValue(const T& value) {
-  return ToValueImpl(value, static_cast<T*>(nullptr));
-}
-
-}  // namespace internal
-}  // namespace headless
-
-#endif  // HEADLESS_PUBLIC_DOMAINS_TYPE_CONVERSIONS_H_