54 lines
2.3 KiB
JavaScript
Vendored
54 lines
2.3 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.proto2 = void 0;
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const proto_runtime_js_1 = require("./private/proto-runtime.js");
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const field_list_js_1 = require("./private/field-list.js");
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const field_normalize_js_1 = require("./private/field-normalize.js");
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/**
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* Provides functionality for messages defined with the proto2 syntax.
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*/
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exports.proto2 = (0, proto_runtime_js_1.makeProtoRuntime)("proto2", (fields) => {
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return new field_list_js_1.InternalFieldList(fields, (source) => (0, field_normalize_js_1.normalizeFieldInfos)(source, false));
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},
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// TODO merge with proto3 and initExtensionField, also see initPartial, equals, clone
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(target) => {
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for (const member of target.getType().fields.byMember()) {
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const name = member.localName, t = target;
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if (member.repeated) {
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t[name] = [];
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continue;
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}
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switch (member.kind) {
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case "oneof":
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t[name] = { case: undefined };
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break;
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case "map":
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t[name] = {};
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break;
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case "scalar":
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case "enum":
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case "message":
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// In contrast to proto3, enum and scalar fields have no intrinsic default value,
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// only an optional explicit default value.
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// Unlike proto3 intrinsic default values, proto2 explicit default values are not
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// set on construction, because they are not omitted on the wire. If we did set
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// default values on construction, a deserialize-serialize round-trip would add
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// fields to a message.
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break;
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}
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}
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});
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