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Closure Compiler is a JavaScript optimizing compiler. It parses your JavaScript, analyzes it, removes dead code and rewrites and minimizes what's left. It also checks syntax, variable references, and types, and warns about common JavaScript pitfalls. It is used in many of Google's JavaScript apps, including Gmail, Google Web Search, Google Maps, and Google Docs.

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/*
 * Copyright 2016 The Closure Compiler 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
 *
 *     http://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.
 */

package com.google.javascript.jscomp;

import org.jspecify.nullness.Nullable;

/**
 * A warnings guard that suppresses warnings for a particular diagnostic group for a file that
 * contains the specified substring.
 */
public final class DiagnosticGroupPathSuppressingWarningsGuard extends WarningsGuard {
  private final DiagnosticGroup group;
  private final String part;

  public DiagnosticGroupPathSuppressingWarningsGuard(DiagnosticGroup group, String part) {
    this.group = group;
    this.part = part;
  }

  /** Does not touch warnings in other paths. */
  @Override
  public @Nullable CheckLevel level(JSError error) {
    if (error.getSourceName() == null || !error.getSourceName().contains(this.part)) {
      return null;
    }
    return this.group.matches(error) ? CheckLevel.OFF : null;
  }

  @Override
  public String toString() {
    return this.group + "(" + this.part + ")";
  }
}