| /******************************************************************************* |
| * Copyright (c) 2008, 2016 xored software, Inc. and others. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * xored software, Inc. - initial API and Implementation (Alex Panchenko) |
| *******************************************************************************/ |
| package org.eclipse.dltk.core.builder; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExecutableExtension; |
| import org.eclipse.dltk.ast.parser.IModuleDeclaration; |
| import org.eclipse.dltk.ast.parser.ISourceParser; |
| import org.eclipse.dltk.compiler.env.IModuleSource; |
| import org.eclipse.dltk.compiler.problem.ProblemCollector; |
| import org.eclipse.dltk.core.DLTKLanguageManager; |
| import org.eclipse.dltk.core.IScriptProject; |
| import org.eclipse.dltk.core.ISourceModuleInfoCache.ISourceModuleInfo; |
| import org.eclipse.dltk.core.SourceParserUtil; |
| import org.eclipse.dltk.internal.core.ModelManager; |
| |
| public class ParserBuildParticipantFactory extends AbstractBuildParticipantType |
| implements IExecutableExtension { |
| |
| @Override |
| public IBuildParticipant createBuildParticipant(IScriptProject project) |
| throws CoreException { |
| if (natureId != null) { |
| final ISourceParser parser = DLTKLanguageManager.getSourceParser( |
| project.getProject(), natureId); |
| if (parser != null) { |
| return new ParserBuildParticipant(parser); |
| } |
| } |
| return null; |
| } |
| |
| private String natureId = null; |
| |
| @Override |
| public void setInitializationData(IConfigurationElement config, |
| String propertyName, Object data) throws CoreException { |
| natureId = config.getAttribute("nature"); //$NON-NLS-1$ |
| } |
| |
| private static class ParserBuildParticipant implements IBuildParticipant { |
| |
| private final ISourceParser parser; |
| |
| public ParserBuildParticipant(ISourceParser parser) { |
| this.parser = parser; |
| } |
| |
| @Override |
| public void build(IBuildContext context) throws CoreException { |
| IModuleDeclaration moduleDeclaration = (IModuleDeclaration) context |
| .get(IBuildContext.ATTR_MODULE_DECLARATION); |
| if (moduleDeclaration != null) { |
| // do nothing if already have AST - optimization for reconcile |
| return; |
| } |
| // get cache entry |
| final ISourceModuleInfo cacheEntry = ModelManager.getModelManager() |
| .getSourceModuleInfoCache().get(context.getSourceModule()); |
| // check if there is cached AST |
| moduleDeclaration = SourceParserUtil.getModuleFromCache(cacheEntry, |
| context.getProblemReporter()); |
| if (moduleDeclaration != null) { |
| // use AST from cache |
| context.set(IBuildContext.ATTR_MODULE_DECLARATION, |
| moduleDeclaration); |
| return; |
| } |
| // create problem collector |
| final ProblemCollector problemCollector = new ProblemCollector(); |
| // parse |
| moduleDeclaration = parser |
| .parse((IModuleSource) context.getSourceModule(), |
| problemCollector); |
| // put result to the cache |
| SourceParserUtil.putModuleToCache(cacheEntry, moduleDeclaration, |
| problemCollector); |
| context.set(IBuildContext.ATTR_MODULE_DECLARATION, |
| moduleDeclaration); |
| // report errors to the build context |
| problemCollector.copyTo(context.getProblemReporter()); |
| } |
| } |
| |
| } |