Initial Commit

node_modules/@grpc/proto-loader/build/src/index.js

@@ -0,0 +1,234 @@
+"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.
+ *
+ */
+const fs = require("fs");
+const path = require("path");
+const Protobuf = require("protobufjs");
+const descriptor = require("protobufjs/ext/descriptor");
+const camelCase = require("lodash.camelcase");
+const descriptorOptions = {
+    longs: String,
+    enums: String,
+    bytes: String,
+    defaults: true,
+    oneofs: true,
+    json: true,
+};
+function joinName(baseName, name) {
+    if (baseName === '') {
+        return name;
+    }
+    else {
+        return baseName + '.' + name;
+    }
+}
+function isHandledReflectionObject(obj) {
+    return (obj instanceof Protobuf.Service ||
+        obj instanceof Protobuf.Type ||
+        obj instanceof Protobuf.Enum);
+}
+function isNamespaceBase(obj) {
+    return obj instanceof Protobuf.Namespace || obj instanceof Protobuf.Root;
+}
+function getAllHandledReflectionObjects(obj, parentName) {
+    const objName = joinName(parentName, obj.name);
+    if (isHandledReflectionObject(obj)) {
+        return [[objName, obj]];
+    }
+    else {
+        if (isNamespaceBase(obj) && typeof obj.nested !== 'undefined') {
+            return Object.keys(obj.nested)
+                .map(name => {
+                return getAllHandledReflectionObjects(obj.nested[name], objName);
+            })
+                .reduce((accumulator, currentValue) => accumulator.concat(currentValue), []);
+        }
+    }
+    return [];
+}
+function createDeserializer(cls, options) {
+    return function deserialize(argBuf) {
+        return cls.toObject(cls.decode(argBuf), options);
+    };
+}
+function createSerializer(cls) {
+    return function serialize(arg) {
+        const message = cls.fromObject(arg);
+        return cls.encode(message).finish();
+    };
+}
+function createMethodDefinition(method, serviceName, options, fileDescriptors) {
+    /* This is only ever called after the corresponding root.resolveAll(), so we
+     * can assume that the resolved request and response types are non-null */
+    const requestType = method.resolvedRequestType;
+    const responseType = method.resolvedResponseType;
+    return {
+        path: '/' + serviceName + '/' + method.name,
+        requestStream: !!method.requestStream,
+        responseStream: !!method.responseStream,
+        requestSerialize: createSerializer(requestType),
+        requestDeserialize: createDeserializer(requestType, options),
+        responseSerialize: createSerializer(responseType),
+        responseDeserialize: createDeserializer(responseType, options),
+        // TODO(murgatroid99): Find a better way to handle this
+        originalName: camelCase(method.name),
+        requestType: createMessageDefinition(requestType, fileDescriptors),
+        responseType: createMessageDefinition(responseType, fileDescriptors),
+    };
+}
+function createServiceDefinition(service, name, options, fileDescriptors) {
+    const def = {};
+    for (const method of service.methodsArray) {
+        def[method.name] = createMethodDefinition(method, name, options, fileDescriptors);
+    }
+    return def;
+}
+function createMessageDefinition(message, fileDescriptors) {
+    const messageDescriptor = message.toDescriptor('proto3');
+    return {
+        format: 'Protocol Buffer 3 DescriptorProto',
+        type: messageDescriptor.$type.toObject(messageDescriptor, descriptorOptions),
+        fileDescriptorProtos: fileDescriptors,
+    };
+}
+function createEnumDefinition(enumType, fileDescriptors) {
+    const enumDescriptor = enumType.toDescriptor('proto3');
+    return {
+        format: 'Protocol Buffer 3 EnumDescriptorProto',
+        type: enumDescriptor.$type.toObject(enumDescriptor, descriptorOptions),
+        fileDescriptorProtos: fileDescriptors,
+    };
+}
+/**
+ * function createDefinition(obj: Protobuf.Service, name: string, options:
+ * Options): ServiceDefinition; function createDefinition(obj: Protobuf.Type,
+ * name: string, options: Options): MessageTypeDefinition; function
+ * createDefinition(obj: Protobuf.Enum, name: string, options: Options):
+ * EnumTypeDefinition;
+ */
+function createDefinition(obj, name, options, fileDescriptors) {
+    if (obj instanceof Protobuf.Service) {
+        return createServiceDefinition(obj, name, options, fileDescriptors);
+    }
+    else if (obj instanceof Protobuf.Type) {
+        return createMessageDefinition(obj, fileDescriptors);
+    }
+    else if (obj instanceof Protobuf.Enum) {
+        return createEnumDefinition(obj, fileDescriptors);
+    }
+    else {
+        throw new Error('Type mismatch in reflection object handling');
+    }
+}
+function createPackageDefinition(root, options) {
+    const def = {};
+    root.resolveAll();
+    const descriptorList = root.toDescriptor('proto3').file;
+    const bufferList = descriptorList.map(value => Buffer.from(descriptor.FileDescriptorProto.encode(value).finish()));
+    for (const [name, obj] of getAllHandledReflectionObjects(root, '')) {
+        def[name] = createDefinition(obj, name, options, bufferList);
+    }
+    return def;
+}
+function addIncludePathResolver(root, includePaths) {
+    const originalResolvePath = root.resolvePath;
+    root.resolvePath = (origin, target) => {
+        if (path.isAbsolute(target)) {
+            return target;
+        }
+        for (const directory of includePaths) {
+            const fullPath = path.join(directory, target);
+            try {
+                fs.accessSync(fullPath, fs.constants.R_OK);
+                return fullPath;
+            }
+            catch (err) {
+                continue;
+            }
+        }
+        process.emitWarning(`${target} not found in any of the include paths ${includePaths}`);
+        return originalResolvePath(origin, target);
+    };
+}
+/**
+ * Load a .proto file with the specified options.
+ * @param filename One or multiple file paths 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) {
+    const root = new Protobuf.Root();
+    options = options || {};
+    if (!!options.includeDirs) {
+        if (!Array.isArray(options.includeDirs)) {
+            return Promise.reject(new Error('The includeDirs option must be an array'));
+        }
+        addIncludePathResolver(root, options.includeDirs);
+    }
+    return root.load(filename, options).then(loadedRoot => {
+        loadedRoot.resolveAll();
+        return createPackageDefinition(root, options);
+    });
+}
+exports.load = load;
+function loadSync(filename, options) {
+    const root = new Protobuf.Root();
+    options = options || {};
+    if (!!options.includeDirs) {
+        if (!Array.isArray(options.includeDirs)) {
+            throw new Error('The includeDirs option must be an array');
+        }
+        addIncludePathResolver(root, options.includeDirs);
+    }
+    const loadedRoot = root.loadSync(filename, options);
+    loadedRoot.resolveAll();
+    return createPackageDefinition(root, options);
+}
+exports.loadSync = loadSync;
+// Load Google's well-known proto files that aren't exposed by Protobuf.js.
+{
+    // Protobuf.js exposes: any, duration, empty, field_mask, struct, timestamp,
+    // and wrappers. compiler/plugin is excluded in Protobuf.js and here.
+    const wellKnownProtos = ['api', 'descriptor', 'source_context', 'type'];
+    const sourceDir = path.join(path.dirname(require.resolve('protobufjs')), 'google', 'protobuf');
+    for (const proto of wellKnownProtos) {
+        const file = path.join(sourceDir, `${proto}.proto`);
+        const descriptor = Protobuf.loadSync(file).toJSON();
+        Protobuf.common(proto, descriptor.nested.google.nested);
+    }
+}
+//# sourceMappingURL=index.js.map