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/**
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved.
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*
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* Oracle and Java are registered trademarks of Oracle and/or its affiliates.
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* Other names may be trademarks of their respective owners.
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*
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common
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jaroslav@358
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* Development and Distribution License("CDDL") (collectively, the
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* "License"). You may not use this file except in compliance with the
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* License. You can obtain a copy of the License at
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* http://www.netbeans.org/cddl-gplv2.html
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* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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* specific language governing permissions and limitations under the
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* License. When distributing the software, include this License Header
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* Notice in each file and include the License file at
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* nbbuild/licenses/CDDL-GPL-2-CP. 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 GPL Version 2 section of the License file that
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* accompanied this code. If applicable, add the following below the
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* License Header, with the fields enclosed by brackets [] replaced by
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* your own identifying information:
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* "Portions Copyrighted [year] [name of copyright owner]"
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*
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* Contributor(s):
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*
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* The Original Software is NetBeans. The Initial Developer of the Original
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* Software is Oracle. Portions Copyright 2013-2013 Oracle. All Rights Reserved.
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*
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* If you wish your version of this file to be governed by only the CDDL
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* or only the GPL Version 2, indicate your decision by adding
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* "[Contributor] elects to include this software in this distribution
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* under the [CDDL or GPL Version 2] license." If you do not indicate a
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* single choice of license, a recipient has the option to distribute
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jaroslav@358
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* your version of this file under either the CDDL, the GPL Version 2 or
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* to extend the choice of license to its licensees as provided above.
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* However, if you add GPL Version 2 code and therefore, elected the GPL
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* Version 2 license, then the option applies only if the new code is
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* made subject to such option by the copyright holder.
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*/
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package org.netbeans.html.boot.impl;
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jaroslav@165
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jaroslav@186
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import java.io.IOException;
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import java.io.Writer;
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jaroslav@165
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.TreeMap;
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import javax.annotation.processing.AbstractProcessor;
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import javax.annotation.processing.Completion;
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import javax.annotation.processing.Completions;
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import javax.annotation.processing.Messager;
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import javax.annotation.processing.Processor;
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import javax.annotation.processing.RoundEnvironment;
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jtulach@327
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import javax.lang.model.SourceVersion;
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import javax.lang.model.element.AnnotationMirror;
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import javax.lang.model.element.Element;
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import javax.lang.model.element.ElementKind;
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import javax.lang.model.element.ExecutableElement;
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import javax.lang.model.element.Modifier;
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import javax.lang.model.element.PackageElement;
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import javax.lang.model.element.TypeElement;
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import javax.lang.model.element.VariableElement;
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jaroslav@185
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import javax.lang.model.type.ArrayType;
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import javax.lang.model.type.ExecutableType;
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import javax.lang.model.type.TypeKind;
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import javax.lang.model.type.TypeMirror;
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import javax.tools.Diagnostic;
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import javax.tools.FileObject;
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import javax.tools.StandardLocation;
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import net.java.html.js.JavaScriptBody;
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import net.java.html.js.JavaScriptResource;
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import org.openide.util.lookup.ServiceProvider;
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/**
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*
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* @author Jaroslav Tulach <jtulach@netbeans.org>
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*/
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@ServiceProvider(service = Processor.class)
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public final class JavaScriptProcesor extends AbstractProcessor {
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jaroslav@186
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private final Map<String,Map<String,ExecutableElement>> javacalls =
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jaroslav@186
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new HashMap<String,Map<String,ExecutableElement>>();
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jaroslav@186
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jaroslav@165
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@Override
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public Set<String> getSupportedAnnotationTypes() {
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jaroslav@165
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Set<String> set = new HashSet<String>();
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set.add(JavaScriptBody.class.getName());
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set.add(JavaScriptResource.class.getName());
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return set;
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}
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jaroslav@165
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@Override
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public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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jaroslav@165
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final Messager msg = processingEnv.getMessager();
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for (Element e : roundEnv.getElementsAnnotatedWith(JavaScriptBody.class)) {
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if (e.getKind() != ElementKind.METHOD && e.getKind() != ElementKind.CONSTRUCTOR) {
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continue;
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jaroslav@165
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}
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ExecutableElement ee = (ExecutableElement)e;
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List<? extends VariableElement> params = ee.getParameters();
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JavaScriptBody jsb = e.getAnnotation(JavaScriptBody.class);
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if (jsb == null) {
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continue;
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jaroslav@165
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}
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String[] arr = jsb.args();
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if (params.size() != arr.length) {
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msg.printMessage(Diagnostic.Kind.ERROR, "Number of args arguments does not match real arguments!", e);
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}
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if (!jsb.javacall() && jsb.body().contains(".@")) {
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msg.printMessage(Diagnostic.Kind.WARNING, "Usage of .@ usually requires javacall=true", e);
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}
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if (jsb.javacall()) {
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JsCallback verify = new VerifyCallback(e);
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jaroslav@273
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try {
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verify.parse(jsb.body());
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jaroslav@273
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} catch (IllegalStateException ex) {
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msg.printMessage(Diagnostic.Kind.ERROR, ex.getLocalizedMessage(), e);
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jaroslav@273
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}
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}
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}
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for (Element e : roundEnv.getElementsAnnotatedWith(JavaScriptResource.class)) {
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JavaScriptResource r = e.getAnnotation(JavaScriptResource.class);
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if (r == null) {
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continue;
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}
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final String res;
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if (r.value().startsWith("/")) {
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res = r.value();
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} else {
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res = findPkg(e).replace('.', '/') + "/" + r.value();
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}
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try {
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FileObject os = processingEnv.getFiler().getResource(StandardLocation.SOURCE_PATH, "", res);
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os.openInputStream().close();
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} catch (IOException ex1) {
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try {
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FileObject os2 = processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, "", res);
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os2.openInputStream().close();
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} catch (IOException ex2) {
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msg.printMessage(Diagnostic.Kind.ERROR, "Cannot find " + res + " in " + res + " package", e);
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}
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}
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}
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if (roundEnv.processingOver()) {
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generateCallbackClass(javacalls);
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javacalls.clear();
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}
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return true;
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}
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@Override
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public Iterable<? extends Completion> getCompletions(Element e,
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AnnotationMirror annotation, ExecutableElement member, String userText
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) {
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jaroslav@165
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StringBuilder sb = new StringBuilder();
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jaroslav@165
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if (e.getKind() == ElementKind.METHOD && member.getSimpleName().contentEquals("args")) {
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jaroslav@165
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ExecutableElement ee = (ExecutableElement) e;
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jaroslav@165
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String sep = "";
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sb.append("{ ");
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jaroslav@165
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for (VariableElement ve : ee.getParameters()) {
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jaroslav@165
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sb.append(sep).append('"').append(ve.getSimpleName())
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.append('"');
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sep = ", ";
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jaroslav@165
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}
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jaroslav@165
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sb.append(" }");
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jaroslav@165
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return Collections.nCopies(1, Completions.of(sb.toString()));
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jaroslav@165
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}
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jaroslav@165
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return null;
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jaroslav@165
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}
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jaroslav@165
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jaroslav@184
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private class VerifyCallback extends JsCallback {
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jaroslav@184
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private final Element e;
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jaroslav@184
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public VerifyCallback(Element e) {
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jaroslav@184
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this.e = e;
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jaroslav@184
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}
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jaroslav@184
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jaroslav@184
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@Override
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jaroslav@184
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protected CharSequence callMethod(String ident, String fqn, String method, String params) {
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jaroslav@185
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final TypeElement type = processingEnv.getElementUtils().getTypeElement(fqn);
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jaroslav@185
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if (type == null) {
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jaroslav@184
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processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR,
|
jaroslav@184
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"Callback to non-existing class " + fqn, e
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jaroslav@184
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);
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jaroslav@185
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return "";
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jaroslav@185
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}
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jaroslav@186
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ExecutableElement found = null;
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jaroslav@185
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StringBuilder foundParams = new StringBuilder();
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jaroslav@185
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for (Element m : type.getEnclosedElements()) {
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jaroslav@185
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if (m.getKind() != ElementKind.METHOD) {
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jaroslav@185
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continue;
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jaroslav@185
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}
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jaroslav@185
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if (m.getSimpleName().contentEquals(method)) {
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jaroslav@188
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String paramTypes = findParamTypes((ExecutableElement)m);
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jaroslav@185
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if (paramTypes.equals(params)) {
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jaroslav@186
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found = (ExecutableElement) m;
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jaroslav@185
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break;
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jaroslav@185
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}
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jaroslav@185
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foundParams.append(paramTypes).append("\n");
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jaroslav@185
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}
|
jaroslav@185
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}
|
jaroslav@185
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if (found == null) {
|
jaroslav@185
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if (foundParams.length() == 0) {
|
jaroslav@185
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processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR,
|
jaroslav@185
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212 |
"Callback to class " + fqn + " with unknown method " + method, e
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jaroslav@185
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);
|
jaroslav@185
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} else {
|
jaroslav@185
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215 |
processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR,
|
jaroslav@185
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216 |
"Callback to " + fqn + "." + method + " with wrong parameters: " +
|
jaroslav@185
|
217 |
params + ". Only known parameters are " + foundParams, e
|
jaroslav@185
|
218 |
);
|
jaroslav@185
|
219 |
}
|
jaroslav@186
|
220 |
} else {
|
jaroslav@186
|
221 |
Map<String,ExecutableElement> mangledOnes = javacalls.get(findPkg(e));
|
jaroslav@186
|
222 |
if (mangledOnes == null) {
|
jaroslav@186
|
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mangledOnes = new TreeMap<String, ExecutableElement>();
|
jaroslav@186
|
224 |
javacalls.put(findPkg(e), mangledOnes);
|
jaroslav@186
|
225 |
}
|
jaroslav@188
|
226 |
String mangled = JsCallback.mangle(fqn, method, findParamTypes(found));
|
jaroslav@186
|
227 |
mangledOnes.put(mangled, found);
|
jaroslav@184
|
228 |
}
|
jaroslav@184
|
229 |
return "";
|
jaroslav@184
|
230 |
}
|
jaroslav@185
|
231 |
|
jaroslav@188
|
232 |
private String findParamTypes(ExecutableElement method) {
|
jaroslav@185
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233 |
ExecutableType t = (ExecutableType) method.asType();
|
jaroslav@185
|
234 |
StringBuilder sb = new StringBuilder();
|
jaroslav@188
|
235 |
sb.append('(');
|
jaroslav@185
|
236 |
for (TypeMirror tm : t.getParameterTypes()) {
|
jaroslav@185
|
237 |
if (tm.getKind().isPrimitive()) {
|
jaroslav@185
|
238 |
switch (tm.getKind()) {
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jaroslav@185
|
239 |
case INT: sb.append('I'); break;
|
jaroslav@185
|
240 |
case BOOLEAN: sb.append('Z'); break;
|
jaroslav@185
|
241 |
case BYTE: sb.append('B'); break;
|
jaroslav@185
|
242 |
case CHAR: sb.append('C'); break;
|
jaroslav@185
|
243 |
case SHORT: sb.append('S'); break;
|
jaroslav@185
|
244 |
case DOUBLE: sb.append('D'); break;
|
jaroslav@185
|
245 |
case FLOAT: sb.append('F'); break;
|
jaroslav@185
|
246 |
case LONG: sb.append('J'); break;
|
jaroslav@185
|
247 |
default:
|
jaroslav@185
|
248 |
throw new IllegalStateException("Uknown " + tm.getKind());
|
jaroslav@185
|
249 |
}
|
jaroslav@185
|
250 |
} else {
|
jaroslav@185
|
251 |
while (tm.getKind() == TypeKind.ARRAY) {
|
jaroslav@185
|
252 |
sb.append('[');
|
jaroslav@185
|
253 |
tm = ((ArrayType)tm).getComponentType();
|
jaroslav@185
|
254 |
}
|
jaroslav@185
|
255 |
sb.append('L');
|
jaroslav@185
|
256 |
sb.append(tm.toString().replace('.', '/'));
|
jaroslav@185
|
257 |
sb.append(';');
|
jaroslav@185
|
258 |
}
|
jaroslav@185
|
259 |
}
|
jaroslav@188
|
260 |
sb.append(')');
|
jaroslav@185
|
261 |
return sb.toString();
|
jaroslav@185
|
262 |
}
|
jaroslav@184
|
263 |
}
|
jaroslav@186
|
264 |
|
jaroslav@186
|
265 |
private void generateCallbackClass(Map<String,Map<String, ExecutableElement>> process) {
|
jaroslav@186
|
266 |
for (Map.Entry<String, Map<String, ExecutableElement>> pkgEn : process.entrySet()) {
|
jaroslav@186
|
267 |
String pkgName = pkgEn.getKey();
|
jaroslav@186
|
268 |
Map<String, ExecutableElement> map = pkgEn.getValue();
|
jaroslav@186
|
269 |
StringBuilder source = new StringBuilder();
|
jaroslav@186
|
270 |
source.append("package ").append(pkgName).append(";\n");
|
jaroslav@188
|
271 |
source.append("public final class $JsCallbacks$ {\n");
|
jaroslav@288
|
272 |
source.append(" static final $JsCallbacks$ VM = new $JsCallbacks$(null);\n");
|
jaroslav@288
|
273 |
source.append(" private final org.apidesign.html.boot.spi.Fn.Presenter p;\n");
|
jaroslav@288
|
274 |
source.append(" private $JsCallbacks$ last;\n");
|
jaroslav@288
|
275 |
source.append(" private $JsCallbacks$(org.apidesign.html.boot.spi.Fn.Presenter p) {\n");
|
jaroslav@288
|
276 |
source.append(" this.p = p;\n");
|
jaroslav@288
|
277 |
source.append(" }\n");
|
jaroslav@288
|
278 |
source.append(" final $JsCallbacks$ current() {\n");
|
jaroslav@322
|
279 |
source.append(" org.apidesign.html.boot.spi.Fn.Presenter now = org.apidesign.html.boot.spi.Fn.activePresenter();\n");
|
jaroslav@288
|
280 |
source.append(" if (now == p) return this;\n");
|
jaroslav@288
|
281 |
source.append(" if (last != null && now == last.p) return last;\n");
|
jaroslav@288
|
282 |
source.append(" return last = new $JsCallbacks$(now);\n");
|
jaroslav@288
|
283 |
source.append(" }\n");
|
jaroslav@186
|
284 |
for (Map.Entry<String, ExecutableElement> entry : map.entrySet()) {
|
jaroslav@186
|
285 |
final String mangled = entry.getKey();
|
jaroslav@186
|
286 |
final ExecutableElement m = entry.getValue();
|
jaroslav@186
|
287 |
final boolean isStatic = m.getModifiers().contains(Modifier.STATIC);
|
jaroslav@186
|
288 |
|
jaroslav@186
|
289 |
source.append("\n public java.lang.Object ")
|
jaroslav@186
|
290 |
.append(mangled)
|
jaroslav@186
|
291 |
.append("(");
|
jaroslav@186
|
292 |
|
jaroslav@186
|
293 |
String sep = "";
|
jaroslav@186
|
294 |
if (!isStatic) {
|
jaroslav@186
|
295 |
source.append(((TypeElement)m.getEnclosingElement()).getQualifiedName());
|
jaroslav@186
|
296 |
source.append(" self");
|
jaroslav@186
|
297 |
sep = ", ";
|
jaroslav@186
|
298 |
}
|
jaroslav@186
|
299 |
|
jaroslav@186
|
300 |
int cnt = 0;
|
jaroslav@186
|
301 |
for (VariableElement ve : m.getParameters()) {
|
jaroslav@186
|
302 |
source.append(sep);
|
jaroslav@186
|
303 |
source.append(ve.asType());
|
jaroslav@186
|
304 |
source.append(" arg").append(++cnt);
|
jaroslav@186
|
305 |
sep = ", ";
|
jaroslav@186
|
306 |
}
|
jaroslav@322
|
307 |
source.append(") throws Throwable {\n");
|
jtulach@327
|
308 |
if (processingEnv.getSourceVersion().compareTo(SourceVersion.RELEASE_7) >= 0) {
|
jtulach@327
|
309 |
source.append(" try (java.io.Closeable a = org.apidesign.html.boot.spi.Fn.activate(p)) { \n");
|
jtulach@327
|
310 |
} else {
|
jtulach@327
|
311 |
source.append(" java.io.Closeable a = org.apidesign.html.boot.spi.Fn.activate(p); try {\n");
|
jtulach@327
|
312 |
}
|
jaroslav@186
|
313 |
source.append(" ");
|
jaroslav@186
|
314 |
if (m.getReturnType().getKind() != TypeKind.VOID) {
|
jaroslav@186
|
315 |
source.append("return ");
|
jaroslav@186
|
316 |
}
|
jaroslav@191
|
317 |
if (isStatic) {
|
jaroslav@191
|
318 |
source.append(((TypeElement)m.getEnclosingElement()).getQualifiedName());
|
jaroslav@191
|
319 |
source.append('.');
|
jaroslav@191
|
320 |
} else {
|
jaroslav@186
|
321 |
source.append("self.");
|
jaroslav@186
|
322 |
}
|
jaroslav@186
|
323 |
source.append(m.getSimpleName());
|
jaroslav@186
|
324 |
source.append("(");
|
jaroslav@186
|
325 |
cnt = 0;
|
jaroslav@186
|
326 |
sep = "";
|
jaroslav@186
|
327 |
for (VariableElement ve : m.getParameters()) {
|
jaroslav@186
|
328 |
source.append(sep);
|
jaroslav@186
|
329 |
source.append("arg").append(++cnt);
|
jaroslav@186
|
330 |
sep = ", ";
|
jaroslav@186
|
331 |
}
|
jaroslav@186
|
332 |
source.append(");\n");
|
jaroslav@186
|
333 |
if (m.getReturnType().getKind() == TypeKind.VOID) {
|
jaroslav@186
|
334 |
source.append(" return null;\n");
|
jaroslav@186
|
335 |
}
|
jtulach@327
|
336 |
if (processingEnv.getSourceVersion().compareTo(SourceVersion.RELEASE_7) >= 0) {
|
jtulach@327
|
337 |
source.append(" }\n");
|
jtulach@327
|
338 |
} else {
|
jtulach@327
|
339 |
|
jtulach@327
|
340 |
source.append(" } finally {\n");
|
jtulach@327
|
341 |
source.append(" a.close();\n");
|
jtulach@327
|
342 |
source.append(" }\n");
|
jtulach@327
|
343 |
}
|
jaroslav@186
|
344 |
source.append(" }\n");
|
jaroslav@186
|
345 |
}
|
jaroslav@186
|
346 |
source.append("}\n");
|
jaroslav@186
|
347 |
final String srcName = pkgName + ".$JsCallbacks$";
|
jaroslav@186
|
348 |
try {
|
jaroslav@186
|
349 |
Writer w = processingEnv.getFiler().createSourceFile(srcName,
|
jaroslav@186
|
350 |
map.values().toArray(new Element[map.size()])
|
jaroslav@186
|
351 |
).openWriter();
|
jaroslav@186
|
352 |
w.write(source.toString());
|
jaroslav@186
|
353 |
w.close();
|
jaroslav@186
|
354 |
} catch (IOException ex) {
|
jaroslav@186
|
355 |
processingEnv.getMessager().printMessage(
|
jaroslav@186
|
356 |
Diagnostic.Kind.ERROR, "Can't write " + srcName + ": " + ex.getMessage()
|
jaroslav@186
|
357 |
);
|
jaroslav@186
|
358 |
}
|
jaroslav@186
|
359 |
}
|
jaroslav@186
|
360 |
}
|
jaroslav@186
|
361 |
|
jaroslav@186
|
362 |
private static String findPkg(Element e) {
|
jaroslav@186
|
363 |
while (e.getKind() != ElementKind.PACKAGE) {
|
jaroslav@186
|
364 |
e = e.getEnclosingElement();
|
jaroslav@186
|
365 |
}
|
jaroslav@186
|
366 |
return ((PackageElement)e).getQualifiedName().toString();
|
jaroslav@186
|
367 |
}
|
jaroslav@186
|
368 |
|
jaroslav@165
|
369 |
}
|