/* Copyright 2013-2016 Jason Leyba 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.github.jsdossier.jscomp; import com.github.jsdossier.annotations.Global; import com.github.jsdossier.annotations.Modules; import com.github.jsdossier.jscomp.Annotations.Internal; import com.google.common.collect.ImmutableList; import com.google.common.collect.ImmutableSet; import com.google.inject.AbstractModule; import com.google.inject.Provides; import com.google.inject.Scopes; import com.google.javascript.jscomp.ClosureCodingConvention; import com.google.javascript.jscomp.CompilationLevel; import com.google.javascript.jscomp.CompilerOptions; import com.google.javascript.jscomp.CompilerOptions.LanguageMode; import com.google.javascript.jscomp.CustomPassExecutionTime; import com.google.javascript.jscomp.deps.ModuleLoader; import com.google.javascript.jscomp.parsing.Config; import com.google.javascript.rhino.jstype.JSTypeRegistry; import com.google.javascript.rhino.jstype.StaticTypedScope; import java.nio.file.Path; import javax.inject.Provider; import javax.inject.Singleton; /** Defines the bindings for the compiler. */ public final class CompilerModule extends AbstractModule { @Override protected void configure() { bind(DossierCompiler.class).in(Scopes.SINGLETON); } @Provides @Singleton @Global SymbolTable provideGlobalSymbolTable() { return SymbolTable.createGlobalSymbolTable(); } @Provides StaticTypedScope provideGlobalScope(DossierCompiler compiler) { return compiler.getTopScope(); } @Provides JSTypeRegistry provideJsTypeRegistry(DossierCompiler compiler) { return compiler.getTypeRegistry(); } @Provides @Internal ImmutableList<DossierCompilerPass> providePasses( BuildSymbolTablePass symbolTablePass, FileVisibilityPass visibilityPass, @Modules ImmutableSet<Path> modulePaths, Provider<NodeModulePass> nodeModulePassProvider) { ImmutableList.Builder<DossierCompilerPass> passes = ImmutableList.<DossierCompilerPass>builder().add(symbolTablePass, visibilityPass); // Transform CommonJS style node modules into Closure's goog.module syntax. // TODO(jleyba): do we still need to control this transformation? if (!modulePaths.isEmpty()) { passes.add(nodeModulePassProvider.get()); } return passes.build(); } @Provides CompilerOptions provideCompilerOptions( ProvidedSymbolPass providedSymbolPass, TypeCollectionPass typeCollectionPass, @Modules ImmutableSet<Path> modulePaths, Environment environment) { CompilerOptions options = new CompilerOptions(); switch (environment) { case BROWSER: options.setEnvironment(CompilerOptions.Environment.BROWSER); options.setModuleResolutionMode(ModuleLoader.ResolutionMode.BROWSER); break; case NODE: options.setEnvironment(CompilerOptions.Environment.CUSTOM); options.setModuleResolutionMode(ModuleLoader.ResolutionMode.NODE); break; default: throw new AssertionError("unexpected environment: " + environment); } options.setModuleRoots(ImmutableList.of()); options.setLanguageIn(LanguageMode.STABLE_IN); options.setLanguageOut(LanguageMode.STABLE_OUT); options.setCodingConvention(new ClosureCodingConvention()); CompilationLevel.ADVANCED_OPTIMIZATIONS.setOptionsForCompilationLevel(options); CompilationLevel.ADVANCED_OPTIMIZATIONS.setTypeBasedOptimizationOptions(options); options.setChecksOnly(true); options.setContinueAfterErrors(true); options.setAllowHotswapReplaceScript(true); options.setPreserveDetailedSourceInfo(true); options.setParseJsDocDocumentation(Config.JsDocParsing.INCLUDE_DESCRIPTIONS_WITH_WHITESPACE); // For easier debugging. options.setPrettyPrint(true); options.addCustomPass(CustomPassExecutionTime.BEFORE_CHECKS, providedSymbolPass); options.addCustomPass(CustomPassExecutionTime.BEFORE_OPTIMIZATIONS, typeCollectionPass); return options; } }