author | jlahoda |
Thu, 15 Jun 2017 13:44:42 +0200 | |
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/* |
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* Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.tools.javac.api; |
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import java.util.Collection; |
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import java.util.LinkedHashSet; |
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import java.util.Locale; |
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import java.util.Objects; |
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import java.util.ServiceLoader; |
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import java.util.Set; |
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import java.util.stream.Collectors; |
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import javax.annotation.processing.Processor; |
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import javax.lang.model.element.Element; |
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import javax.lang.model.type.TypeMirror; |
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import javax.lang.model.util.Elements; |
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import javax.lang.model.util.Types; |
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import javax.tools.JavaFileObject; |
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import com.sun.source.tree.CompilationUnitTree; |
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import com.sun.source.tree.Tree; |
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import com.sun.source.util.JavacTask; |
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import com.sun.source.util.Plugin; |
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import com.sun.source.util.TaskListener; |
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import com.sun.tools.doclint.DocLint; |
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import com.sun.tools.javac.main.JavaCompiler; |
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import com.sun.tools.javac.model.JavacElements; |
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import com.sun.tools.javac.model.JavacTypes; |
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import com.sun.tools.javac.platform.PlatformDescription; |
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import com.sun.tools.javac.platform.PlatformDescription.PluginInfo; |
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import com.sun.tools.javac.processing.JavacProcessingEnvironment; |
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import com.sun.tools.javac.resources.CompilerProperties.Errors; |
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import com.sun.tools.javac.tree.JCTree; |
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import com.sun.tools.javac.util.Context; |
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import com.sun.tools.javac.util.DefinedBy; |
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import com.sun.tools.javac.util.DefinedBy.Api; |
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import com.sun.tools.javac.util.List; |
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import com.sun.tools.javac.util.Log; |
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import com.sun.tools.javac.util.PropagatedException; |
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/** |
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* Provides basic functionality for implementations of JavacTask. |
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* |
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* <p><b>This is NOT part of any supported API. |
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* If you write code that depends on this, you do so at your own |
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* risk. This code and its internal interfaces are subject to change |
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* or deletion without notice.</b></p> |
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*/ |
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public class BasicJavacTask extends JavacTask { |
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protected Context context; |
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private TaskListener taskListener; |
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public static JavacTask instance(Context context) { |
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JavacTask instance = context.get(JavacTask.class); |
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if (instance == null) |
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instance = new BasicJavacTask(context, true); |
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return instance; |
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} |
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public BasicJavacTask(Context c, boolean register) { |
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context = c; |
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if (register) |
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context.put(JavacTask.class, this); |
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} |
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@Override @DefinedBy(Api.COMPILER_TREE) |
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public Iterable<? extends CompilationUnitTree> parse() { |
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throw new IllegalStateException(); |
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} |
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@Override @DefinedBy(Api.COMPILER_TREE) |
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public Iterable<? extends Element> analyze() { |
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throw new IllegalStateException(); |
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} |
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@Override @DefinedBy(Api.COMPILER_TREE) |
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public Iterable<? extends JavaFileObject> generate() { |
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throw new IllegalStateException(); |
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} |
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@Override @DefinedBy(Api.COMPILER_TREE) |
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public void setTaskListener(TaskListener tl) { |
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MultiTaskListener mtl = MultiTaskListener.instance(context); |
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if (taskListener != null) |
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mtl.remove(taskListener); |
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if (tl != null) |
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mtl.add(tl); |
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taskListener = tl; |
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} |
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@Override @DefinedBy(Api.COMPILER_TREE) |
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public void addTaskListener(TaskListener taskListener) { |
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MultiTaskListener mtl = MultiTaskListener.instance(context); |
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mtl.add(taskListener); |
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} |
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@Override @DefinedBy(Api.COMPILER_TREE) |
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public void removeTaskListener(TaskListener taskListener) { |
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MultiTaskListener mtl = MultiTaskListener.instance(context); |
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mtl.remove(taskListener); |
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} |
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public Collection<TaskListener> getTaskListeners() { |
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MultiTaskListener mtl = MultiTaskListener.instance(context); |
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return mtl.getTaskListeners(); |
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} |
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@Override @DefinedBy(Api.COMPILER_TREE) |
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public TypeMirror getTypeMirror(Iterable<? extends Tree> path) { |
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// TODO: Should complete attribution if necessary |
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Tree last = null; |
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for (Tree node : path) { |
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last = Objects.requireNonNull(node); |
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} |
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if (last == null) { |
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throw new IllegalArgumentException("empty path"); |
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} |
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return ((JCTree) last).type; |
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} |
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@Override @DefinedBy(Api.COMPILER_TREE) |
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public Elements getElements() { |
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if (context == null) |
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throw new IllegalStateException(); |
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return JavacElements.instance(context); |
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} |
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@Override @DefinedBy(Api.COMPILER_TREE) |
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public Types getTypes() { |
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if (context == null) |
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throw new IllegalStateException(); |
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return JavacTypes.instance(context); |
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} |
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@Override @DefinedBy(Api.COMPILER) |
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public void addModules(Iterable<String> moduleNames) { |
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throw new IllegalStateException(); |
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} |
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@Override @DefinedBy(Api.COMPILER) |
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public void setProcessors(Iterable<? extends Processor> processors) { |
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throw new IllegalStateException(); |
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} |
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@Override @DefinedBy(Api.COMPILER) |
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public void setLocale(Locale locale) { |
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throw new IllegalStateException(); |
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} |
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@Override @DefinedBy(Api.COMPILER) |
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public Boolean call() { |
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throw new IllegalStateException(); |
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} |
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/** |
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* For internal use only. |
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* This method will be removed without warning. |
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* @return the context |
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*/ |
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public Context getContext() { |
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return context; |
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} |
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public void initPlugins(Set<List<String>> pluginOpts) { |
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PlatformDescription platformProvider = context.get(PlatformDescription.class); |
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if (platformProvider != null) { |
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for (PluginInfo<Plugin> pluginDesc : platformProvider.getPlugins()) { |
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java.util.List<String> options = |
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pluginDesc.getOptions().entrySet().stream() |
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.map(e -> e.getKey() + "=" + e.getValue()) |
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.collect(Collectors.toList()); |
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try { |
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pluginDesc.getPlugin().init(this, options.toArray(new String[options.size()])); |
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} catch (RuntimeException ex) { |
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throw new PropagatedException(ex); |
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} |
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} |
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} |
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if (pluginOpts.isEmpty()) |
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return; |
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Set<List<String>> pluginsToCall = new LinkedHashSet<>(pluginOpts); |
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JavacProcessingEnvironment pEnv = JavacProcessingEnvironment.instance(context); |
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ServiceLoader<Plugin> sl = pEnv.getServiceLoader(Plugin.class); |
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for (Plugin plugin : sl) { |
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for (List<String> p : pluginsToCall) { |
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if (plugin.getName().equals(p.head)) { |
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pluginsToCall.remove(p); |
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try { |
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plugin.init(this, p.tail.toArray(new String[p.tail.size()])); |
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} catch (RuntimeException ex) { |
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throw new PropagatedException(ex); |
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} |
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} |
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} |
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} |
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for (List<String> p: pluginsToCall) { |
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Log.instance(context).error(Errors.PluginNotFound(p.head)); |
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} |
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} |
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public void initDocLint(List<String> docLintOpts) { |
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if (docLintOpts.isEmpty()) |
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return; |
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new DocLint().init(this, docLintOpts.toArray(new String[docLintOpts.size()])); |
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JavaCompiler.instance(context).keepComments = true; |
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} |
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} |