75 lines
2.6 KiB
JavaScript
75 lines
2.6 KiB
JavaScript
// 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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import { isScalarZeroValue, scalarZeroValue } from "./scalars.js";
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/**
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* Returns true if the field is set.
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*/
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export function isFieldSet(field, target) {
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const localName = field.localName;
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if (field.repeated) {
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return target[localName].length > 0;
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}
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if (field.oneof) {
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return target[field.oneof.localName].case === localName; // eslint-disable-line @typescript-eslint/no-unsafe-member-access
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}
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switch (field.kind) {
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case "enum":
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case "scalar":
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if (field.opt || field.req) {
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// explicit presence
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return target[localName] !== undefined;
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}
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// implicit presence
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if (field.kind == "enum") {
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return target[localName] !== field.T.values[0].no;
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}
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return !isScalarZeroValue(field.T, target[localName]);
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case "message":
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return target[localName] !== undefined;
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case "map":
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return Object.keys(target[localName]).length > 0; // eslint-disable-line @typescript-eslint/no-unsafe-argument
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}
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}
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/**
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* Resets the field, so that isFieldSet() will return false.
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*/
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export function clearField(field, target) {
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const localName = field.localName;
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const implicitPresence = !field.opt && !field.req;
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if (field.repeated) {
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target[localName] = [];
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}
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else if (field.oneof) {
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target[field.oneof.localName] = { case: undefined };
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}
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else {
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switch (field.kind) {
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case "map":
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target[localName] = {};
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break;
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case "enum":
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target[localName] = implicitPresence ? field.T.values[0].no : undefined;
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break;
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case "scalar":
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target[localName] = implicitPresence
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? scalarZeroValue(field.T, field.L)
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: undefined;
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break;
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case "message":
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target[localName] = undefined;
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break;
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}
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}
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}
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