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// 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 EXTENSIONS_RENDERER_API_SIGNATURE_H_
#define EXTENSIONS_RENDERER_API_SIGNATURE_H_
#include <memory>
#include <vector>
#include "base/macros.h"
#include "v8/include/v8.h"
namespace base {
class Value;
class ListValue;
}
namespace extensions {
class APITypeReferenceMap;
class ArgumentSpec;
// A representation of the expected signature for an API method, along with the
// ability to match provided arguments and convert them to base::Values.
class APISignature {
public:
APISignature(const base::ListValue& specification);
~APISignature();
// Parses |arguments| against this signature, and populates |args_out| with
// the v8 values (performing no conversion). The resulting vector may differ
// from the list of arguments passed in because it will include null-filled
// optional arguments.
// Returns true if the arguments were successfully parsed and converted.
bool ParseArgumentsToV8(v8::Local<v8::Context> context,
const std::vector<v8::Local<v8::Value>>& arguments,
const APITypeReferenceMap& type_refs,
std::vector<v8::Local<v8::Value>>* args_out,
std::string* error) const;
// Parses |arguments| against this signature, converting to a base::ListValue.
// Returns true if the arguments were successfully parsed and converted, and
// populates |args_out| and |callback_out| with the JSON arguments and
// callback values, respectively. On failure, returns false populates |error|.
bool ParseArgumentsToJSON(v8::Local<v8::Context> context,
const std::vector<v8::Local<v8::Value>>& arguments,
const APITypeReferenceMap& type_refs,
std::unique_ptr<base::ListValue>* args_out,
v8::Local<v8::Function>* callback_out,
std::string* error) const;
private:
// The list of expected arguments.
std::vector<std::unique_ptr<ArgumentSpec>> signature_;
DISALLOW_COPY_AND_ASSIGN(APISignature);
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_API_SIGNATURE_H_
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