com.google.javascript.jscomp.LintPassConfig Maven / Gradle / Ivy

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/*
 * Copyright 2015 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 com.google.common.collect.ImmutableList;
import com.google.javascript.jscomp.lint.CheckDuplicateCase;
import com.google.javascript.jscomp.lint.CheckEmptyStatements;
import com.google.javascript.jscomp.lint.CheckEnums;
import com.google.javascript.jscomp.lint.CheckInterfaces;
import com.google.javascript.jscomp.lint.CheckJSDocStyle;
import com.google.javascript.jscomp.lint.CheckMissingSemicolon;
import com.google.javascript.jscomp.lint.CheckNullabilityModifiers;
import com.google.javascript.jscomp.lint.CheckPrimitiveAsObject;
import com.google.javascript.jscomp.lint.CheckPrototypeProperties;
import com.google.javascript.jscomp.lint.CheckProvidesSorted;
import com.google.javascript.jscomp.lint.CheckRequiresSorted;
import com.google.javascript.jscomp.lint.CheckUnusedLabels;
import com.google.javascript.jscomp.lint.CheckUselessBlocks;
import com.google.javascript.jscomp.parsing.parser.FeatureSet;
import java.util.List;

/**
 * A PassConfig for the standalone linter, which runs on a single file at a time. This runs a
 * similar set of checks to what you would get when running the compiler with the lintChecks
 * DiagnosticGroup enabled, but some of the lint checks depend on type information, which is not
 * available when looking at a single file, so those are omitted here.
 */
class LintPassConfig extends PassConfig.PassConfigDelegate {
  LintPassConfig(CompilerOptions options) {
    super(new DefaultPassConfig(options));
  }

  @Override
  protected List getChecks() {
    return ImmutableList.of(
        gatherModuleMetadataPass,
        earlyLintChecks,
        checkRequires,
        variableReferenceCheck,
        closureRewriteClass,
        lateLintChecks);
  }

  @Override
  protected List getOptimizations() {
    return ImmutableList.of();
  }

  private final PassFactory gatherModuleMetadataPass =
      PassFactory.builderForHotSwap()
          .setName(PassNames.GATHER_MODULE_METADATA)
          .setInternalFactory(
              (compiler) ->
                  new GatherModuleMetadata(
                      compiler,
                      compiler.getOptions().getProcessCommonJSModules(),
                      compiler.getOptions().getModuleResolutionMode()))
          .setFeatureSet(FeatureSet.latest())
          .build();

  private final PassFactory earlyLintChecks =
      PassFactory.builder()
          .setName("earlyLintChecks")
          .setInternalFactory(
              (compiler) ->
                  new CombinedCompilerPass(
                      compiler,
                      ImmutableList.of(
                          new CheckDuplicateCase(compiler),
                          new CheckEmptyStatements(compiler),
                          new CheckEnums(compiler),
                          new CheckJSDocStyle(compiler),
                          new CheckJSDoc(compiler),
                          new CheckMissingSemicolon(compiler),
                          new CheckSuper(compiler),
                          new CheckPrimitiveAsObject(compiler),
                          new ClosureCheckModule(compiler, compiler.getModuleMetadataMap()),
                          new CheckNullabilityModifiers(compiler),
                          new CheckProvidesSorted(CheckProvidesSorted.Mode.COLLECT_AND_REPORT),
                          new CheckRequiresSorted(CheckRequiresSorted.Mode.COLLECT_AND_REPORT),
                          new CheckSideEffects(
                              compiler, /* report */ true, /* protectSideEffectFreeCode */ false),
                          new CheckTypeImportCodeReferences(compiler),
                          new CheckUnusedLabels(compiler),
                          new CheckUselessBlocks(compiler))))
          .setFeatureSet(FeatureSet.latest())
          .build();

  private final PassFactory variableReferenceCheck =
      PassFactory.builder()
          .setName("variableReferenceCheck")
          .setRunInFixedPointLoop(true)
          .setInternalFactory(VariableReferenceCheck::new)
          .setFeatureSet(FeatureSet.latest())
          .build();

  private final PassFactory checkRequires =
      PassFactory.builder()
          .setName("checkMissingAndExtraRequires")
          .setInternalFactory(
              (compiler) ->
                  new CheckMissingAndExtraRequires(
                      compiler, CheckMissingAndExtraRequires.Mode.SINGLE_FILE))
          .setFeatureSet(FeatureSet.latest())
          .build();

  private final PassFactory closureRewriteClass =
      PassFactory.builderForHotSwap()
          .setName(PassNames.CLOSURE_REWRITE_CLASS)
          .setInternalFactory(ClosureRewriteClass::new)
          .setFeatureSet(FeatureSet.latest())
          .build();

  private final PassFactory lateLintChecks =
      PassFactory.builder()
          .setName("lateLintChecks")
          .setInternalFactory(
              (compiler) ->
                  new CombinedCompilerPass(
                      compiler,
                      ImmutableList.of(
                          new CheckInterfaces(compiler), new CheckPrototypeProperties(compiler))))
          .setFeatureSet(FeatureSet.latest())
          .build();
}