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42 lines
1.4 KiB
42 lines
1.4 KiB
4 months ago
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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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import { unsafeClear, unsafeIsSet } from "./reflect/unsafe.js";
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/**
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* Returns true if the field is set.
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*
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* - Scalar and enum fields with implicit presence (proto3):
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* Set if not a zero value.
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*
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* - Scalar and enum fields with explicit presence (proto2, oneof):
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* Set if a value was set when creating or parsing the message, or when a
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* value was assigned to the field's property.
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*
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* - Message fields:
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* Set if the property is not undefined.
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*
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* - List and map fields:
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* Set if not empty.
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*/
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export function isFieldSet(message, field) {
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return (field.parent.typeName == message.$typeName && unsafeIsSet(message, field));
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}
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/**
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* Resets the field, so that isFieldSet() will return false.
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*/
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export function clearField(message, field) {
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if (field.parent.typeName == message.$typeName) {
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unsafeClear(message, field);
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}
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}
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