/*
 * Copyright The OpenTelemetry 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
 *
 *      https://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.
 */
/**
 * No-op implementations of {@link TextMapPropagator}.
 */
export class NoopTextMapPropagator {
    /** Noop inject function does nothing */
    inject(_context, _carrier) { }
    /** Noop extract function does nothing and returns the input context */
    extract(context, _carrier) {
        return context;
    }
    fields() {
        return [];
    }
}
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