tra-analysis/website/functions/node_modules/@grpc/proto-loader/build/src/index.js
2019-01-06 13:14:45 -06:00

157 lines
5.8 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/**
* @license
* Copyright 2018 gRPC authors.
*
* 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.
*
*/
var Protobuf = require("protobufjs");
var fs = require("fs");
var path = require("path");
var _ = require("lodash");
function joinName(baseName, name) {
if (baseName === '') {
return name;
}
else {
return baseName + '.' + name;
}
}
function getAllServices(obj, parentName) {
var objName = joinName(parentName, obj.name);
if (obj.hasOwnProperty('methods')) {
return [[objName, obj]];
}
else {
return obj.nestedArray.map(function (child) {
if (child.hasOwnProperty('nested')) {
return getAllServices(child, objName);
}
else {
return [];
}
}).reduce(function (accumulator, currentValue) { return accumulator.concat(currentValue); }, []);
}
}
function createDeserializer(cls, options) {
return function deserialize(argBuf) {
return cls.toObject(cls.decode(argBuf), options);
};
}
function createSerializer(cls) {
return function serialize(arg) {
var message = cls.fromObject(arg);
return cls.encode(message).finish();
};
}
function createMethodDefinition(method, serviceName, options) {
return {
path: '/' + serviceName + '/' + method.name,
requestStream: !!method.requestStream,
responseStream: !!method.responseStream,
requestSerialize: createSerializer(method.resolvedRequestType),
requestDeserialize: createDeserializer(method.resolvedRequestType, options),
responseSerialize: createSerializer(method.resolvedResponseType),
responseDeserialize: createDeserializer(method.resolvedResponseType, options),
// TODO(murgatroid99): Find a better way to handle this
originalName: _.camelCase(method.name)
};
}
function createServiceDefinition(service, name, options) {
var def = {};
for (var _i = 0, _a = service.methodsArray; _i < _a.length; _i++) {
var method = _a[_i];
def[method.name] = createMethodDefinition(method, name, options);
}
return def;
}
function createPackageDefinition(root, options) {
var def = {};
for (var _i = 0, _a = getAllServices(root, ''); _i < _a.length; _i++) {
var _b = _a[_i], name = _b[0], service = _b[1];
def[name] = createServiceDefinition(service, name, options);
}
return def;
}
function addIncludePathResolver(root, includePaths) {
root.resolvePath = function (origin, target) {
for (var _i = 0, includePaths_1 = includePaths; _i < includePaths_1.length; _i++) {
var directory = includePaths_1[_i];
var fullPath = path.join(directory, target);
try {
fs.accessSync(fullPath, fs.constants.R_OK);
return fullPath;
}
catch (err) {
continue;
}
}
return null;
};
}
/**
* Load a .proto file with the specified options.
* @param filename The file path to load. Can be an absolute path or relative to
* an include path.
* @param options.keepCase Preserve field names. The default is to change them
* to camel case.
* @param options.longs The type that should be used to represent `long` values.
* Valid options are `Number` and `String`. Defaults to a `Long` object type
* from a library.
* @param options.enums The type that should be used to represent `enum` values.
* The only valid option is `String`. Defaults to the numeric value.
* @param options.bytes The type that should be used to represent `bytes`
* values. Valid options are `Array` and `String`. The default is to use
* `Buffer`.
* @param options.defaults Set default values on output objects. Defaults to
* `false`.
* @param options.arrays Set empty arrays for missing array values even if
* `defaults` is `false`. Defaults to `false`.
* @param options.objects Set empty objects for missing object values even if
* `defaults` is `false`. Defaults to `false`.
* @param options.oneofs Set virtual oneof properties to the present field's
* name
* @param options.includeDirs Paths to search for imported `.proto` files.
*/
function load(filename, options) {
var root = new Protobuf.Root();
options = options || {};
if (!!options.includeDirs) {
if (!(options.includeDirs instanceof Array)) {
return Promise.reject(new Error('The includeDirs option must be an array'));
}
addIncludePathResolver(root, options.includeDirs);
}
return root.load(filename, options).then(function (loadedRoot) {
loadedRoot.resolveAll();
return createPackageDefinition(root, options);
});
}
exports.load = load;
function loadSync(filename, options) {
var root = new Protobuf.Root();
options = options || {};
if (!!options.includeDirs) {
if (!(options.includeDirs instanceof Array)) {
throw new Error('The include option must be an array');
}
addIncludePathResolver(root, options.includeDirs);
}
var loadedRoot = root.loadSync(filename, options);
loadedRoot.resolveAll();
return createPackageDefinition(root, options);
}
exports.loadSync = loadSync;
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