265 lines
9.8 KiB
JavaScript
Vendored
265 lines
9.8 KiB
JavaScript
Vendored
"use strict";
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// Copyright 2021-2024 Buf Technologies, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.createRegistryFromDescriptors = void 0;
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const assert_js_1 = require("./private/assert.js");
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const proto3_js_1 = require("./proto3.js");
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const proto2_js_1 = require("./proto2.js");
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const names_js_1 = require("./private/names.js");
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const timestamp_pb_js_1 = require("./google/protobuf/timestamp_pb.js");
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const duration_pb_js_1 = require("./google/protobuf/duration_pb.js");
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const any_pb_js_1 = require("./google/protobuf/any_pb.js");
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const empty_pb_js_1 = require("./google/protobuf/empty_pb.js");
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const field_mask_pb_js_1 = require("./google/protobuf/field_mask_pb.js");
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const struct_pb_js_1 = require("./google/protobuf/struct_pb.js");
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const enum_js_1 = require("./private/enum.js");
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const wrappers_pb_js_1 = require("./google/protobuf/wrappers_pb.js");
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const descriptor_pb_js_1 = require("./google/protobuf/descriptor_pb.js");
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const create_descriptor_set_js_1 = require("./create-descriptor-set.js");
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const is_message_js_1 = require("./is-message.js");
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// well-known message types with specialized JSON representation
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const wkMessages = [
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any_pb_js_1.Any,
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duration_pb_js_1.Duration,
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empty_pb_js_1.Empty,
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field_mask_pb_js_1.FieldMask,
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struct_pb_js_1.Struct,
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struct_pb_js_1.Value,
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struct_pb_js_1.ListValue,
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timestamp_pb_js_1.Timestamp,
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duration_pb_js_1.Duration,
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wrappers_pb_js_1.DoubleValue,
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wrappers_pb_js_1.FloatValue,
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wrappers_pb_js_1.Int64Value,
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wrappers_pb_js_1.Int32Value,
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wrappers_pb_js_1.UInt32Value,
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wrappers_pb_js_1.UInt64Value,
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wrappers_pb_js_1.BoolValue,
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wrappers_pb_js_1.StringValue,
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wrappers_pb_js_1.BytesValue,
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];
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// well-known enum types with specialized JSON representation
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const wkEnums = [(0, enum_js_1.getEnumType)(struct_pb_js_1.NullValue)];
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/**
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* Create a registry from a set of descriptors. The types returned by this
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* registry behave exactly like types from generated code.
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*
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* This function accepts google.protobuf.FileDescriptorSet in serialized or
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* deserialized form. Alternatively, it also accepts a DescriptorSet (see
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* createDescriptorSet()).
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*
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* By default, all well-known types with a specialized JSON representation
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* are replaced with their generated counterpart in this package.
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*/
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function createRegistryFromDescriptors(input, replaceWkt = true) {
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const set = input instanceof Uint8Array || (0, is_message_js_1.isMessage)(input, descriptor_pb_js_1.FileDescriptorSet)
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? (0, create_descriptor_set_js_1.createDescriptorSet)(input)
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: input;
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const enums = new Map();
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const messages = new Map();
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const extensions = new Map();
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const extensionsByExtendee = new Map();
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const services = {};
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if (replaceWkt) {
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for (const mt of wkMessages) {
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messages.set(mt.typeName, mt);
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}
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for (const et of wkEnums) {
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enums.set(et.typeName, et);
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}
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}
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return {
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/**
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* May raise an error on invalid descriptors.
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*/
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findEnum(typeName) {
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const existing = enums.get(typeName);
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if (existing) {
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return existing;
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}
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const desc = set.enums.get(typeName);
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if (!desc) {
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return undefined;
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}
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const runtime = desc.file.syntax == "proto3" ? proto3_js_1.proto3 : proto2_js_1.proto2;
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const type = runtime.makeEnumType(typeName, desc.values.map((u) => ({
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no: u.number,
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name: u.name,
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localName: (0, names_js_1.localName)(u),
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})), {});
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enums.set(typeName, type);
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return type;
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},
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/**
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* May raise an error on invalid descriptors.
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*/
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findMessage(typeName) {
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const existing = messages.get(typeName);
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if (existing) {
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return existing;
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}
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const desc = set.messages.get(typeName);
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if (!desc) {
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return undefined;
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}
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const runtime = desc.file.syntax == "proto3" ? proto3_js_1.proto3 : proto2_js_1.proto2;
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const fields = [];
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const type = runtime.makeMessageType(typeName, () => fields, {
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localName: (0, names_js_1.localName)(desc),
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});
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messages.set(typeName, type);
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for (const field of desc.fields) {
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fields.push(makeFieldInfo(field, this));
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}
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return type;
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},
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/**
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* May raise an error on invalid descriptors.
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*/
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findService(typeName) {
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const existing = services[typeName];
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if (existing) {
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return existing;
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}
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const desc = set.services.get(typeName);
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if (!desc) {
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return undefined;
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}
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const methods = {};
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for (const method of desc.methods) {
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const I = resolve(method.input, this, method);
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const O = resolve(method.output, this, method);
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methods[(0, names_js_1.localName)(method)] = {
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name: method.name,
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I,
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O,
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kind: method.methodKind,
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idempotency: method.idempotency,
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// We do not surface options at this time
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// options: {},
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};
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}
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return (services[typeName] = {
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typeName: desc.typeName,
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methods,
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});
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},
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/**
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* May raise an error on invalid descriptors.
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*/
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findExtensionFor(typeName, no) {
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var _a;
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if (!set.messages.has(typeName)) {
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return undefined;
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}
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let extensionsByNo = extensionsByExtendee.get(typeName);
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if (!extensionsByNo) {
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// maintain a lookup for extension desc by number
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extensionsByNo = new Map();
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extensionsByExtendee.set(typeName, extensionsByNo);
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for (const desc of set.extensions.values()) {
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if (desc.extendee.typeName == typeName) {
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extensionsByNo.set(desc.number, desc);
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}
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}
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}
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const desc = (_a = extensionsByExtendee.get(typeName)) === null || _a === void 0 ? void 0 : _a.get(no);
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return desc ? this.findExtension(desc.typeName) : undefined;
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},
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/**
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* May raise an error on invalid descriptors.
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*/
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findExtension(typeName) {
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const existing = extensions.get(typeName);
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if (existing) {
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return existing;
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}
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const desc = set.extensions.get(typeName);
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if (!desc) {
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return undefined;
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}
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const extendee = resolve(desc.extendee, this, desc);
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const runtime = desc.file.syntax == "proto3" ? proto3_js_1.proto3 : proto2_js_1.proto2;
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const ext = runtime.makeExtension(typeName, extendee, makeFieldInfo(desc, this));
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extensions.set(typeName, ext);
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return ext;
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},
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};
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}
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exports.createRegistryFromDescriptors = createRegistryFromDescriptors;
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function makeFieldInfo(desc, registry) {
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var _a;
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const f = {
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kind: desc.fieldKind,
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no: desc.number,
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name: desc.name,
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jsonName: desc.jsonName,
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delimited: desc.proto.type == descriptor_pb_js_1.FieldDescriptorProto_Type.GROUP,
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repeated: desc.repeated,
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packed: desc.packed,
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oneof: (_a = desc.oneof) === null || _a === void 0 ? void 0 : _a.name,
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opt: desc.optional,
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req: desc.proto.label === descriptor_pb_js_1.FieldDescriptorProto_Label.REQUIRED,
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};
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switch (desc.fieldKind) {
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case "map": {
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(0, assert_js_1.assert)(desc.kind == "field"); // maps are not allowed for extensions
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let T;
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switch (desc.mapValue.kind) {
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case "scalar":
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T = desc.mapValue.scalar;
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break;
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case "enum": {
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T = resolve(desc.mapValue.enum, registry, desc);
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break;
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}
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case "message": {
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T = resolve(desc.mapValue.message, registry, desc);
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break;
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}
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}
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f.K = desc.mapKey;
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f.V = {
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kind: desc.mapValue.kind,
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T,
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};
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break;
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}
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case "message": {
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f.T = resolve(desc.message, registry, desc);
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break;
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}
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case "enum": {
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f.T = resolve(desc.enum, registry, desc);
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f.default = desc.getDefaultValue();
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break;
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}
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case "scalar": {
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f.L = desc.longType;
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f.T = desc.scalar;
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f.default = desc.getDefaultValue();
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break;
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}
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}
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return f;
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}
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function resolve(desc, registry, context) {
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const type = desc.kind == "message"
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? registry.findMessage(desc.typeName)
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: registry.findEnum(desc.typeName);
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(0, assert_js_1.assert)(type, `${desc.toString()}" for ${context.toString()} not found`);
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return type;
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}
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