Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/compiler/JDTCompiler.java @ 13491:807ad2134a6b
Disable assertions that fail under normal usage.
author | Chris Seaton <chris.seaton@oracle.com> |
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date | Sun, 22 Dec 2013 20:06:55 +0000 |
parents | ae6b8ec920e2 |
children | f78eafd5ba9e |
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/* * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.truffle.dsl.processor.compiler; import java.util.*; import javax.annotation.processing.*; import javax.lang.model.element.*; import com.oracle.truffle.dsl.processor.*; public class JDTCompiler extends AbstractCompiler { public static boolean isValidElement(Element currentElement) { try { Class<?> elementClass = Class.forName("org.eclipse.jdt.internal.compiler.apt.model.ElementImpl"); return elementClass.isAssignableFrom(currentElement.getClass()); } catch (ClassNotFoundException e) { return false; } } public List<? extends Element> getEnclosedElementsDeclarationOrder(TypeElement type) { try { Object binding = field(type, "_binding"); Class<?> sourceTypeBinding = Class.forName("org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding"); final List<Object> declarationOrder; if (sourceTypeBinding.isAssignableFrom(binding.getClass())) { declarationOrder = findSourceOrder(binding); } else { return null; } List<Element> enclosedElements = new ArrayList<>(type.getEnclosedElements()); Collections.sort(enclosedElements, new Comparator<Element>() { public int compare(Element o1, Element o2) { try { Object o1Binding = field(o1, "_binding"); Object o2Binding = field(o2, "_binding"); int i1 = declarationOrder.indexOf(o1Binding); int i2 = declarationOrder.indexOf(o2Binding); return i1 - i2; } catch (Exception e) { return 0; } } }); return enclosedElements; } catch (Exception e) { return null; } } private static List<Object> findSourceOrder(Object binding) throws Exception { Object referenceContext = field(field(binding, "scope"), "referenceContext"); TreeMap<Integer, Object> orderedBindings = new TreeMap<>(); collectSourceOrder(orderedBindings, referenceContext, "methods"); collectSourceOrder(orderedBindings, referenceContext, "fields"); collectSourceOrder(orderedBindings, referenceContext, "memberTypes"); return new ArrayList<>(orderedBindings.values()); } private static void collectSourceOrder(TreeMap<Integer, Object> orderedBindings, Object referenceContext, String fieldName) throws Exception { Object[] declarations = (Object[]) field(referenceContext, fieldName); if (declarations != null) { for (int i = 0; i < declarations.length; i++) { Integer declarationSourceStart = (Integer) field(declarations[i], "declarationSourceStart"); orderedBindings.put(declarationSourceStart, field(declarations[i], "binding")); } } } @Override public String getMethodBody(ProcessingEnvironment env, ExecutableElement method) { try { char[] source = getSource(method); if (source == null) { return null; } /* * AbstractMethodDeclaration decl = * ((MethodBinding)(((ElementImpl)method)._binding)).sourceMethod(); int bodyStart = * decl.bodyStart; int bodyEnd = decl.bodyEnd; */ Object decl = method(field(method, "_binding"), "sourceMethod"); int bodyStart = (int) field(decl, "bodyStart"); int bodyEnd = (int) field(decl, "bodyEnd"); int length = bodyEnd - bodyStart; char[] target = new char[length]; System.arraycopy(source, bodyStart, target, 0, length); return new String(target); } catch (Exception e) { return Utils.printException(e); } } private static char[] getSource(Element element) throws Exception { /* * Binding binding = ((ElementImpl)element)._binding; char[] source = null; if (binding * instanceof MethodBinding) { source = ((MethodBinding) * binding).sourceMethod().compilationResult.getCompilationUnit().getContents(); } else if * (binding instanceof SourceTypeBinding) { source = * ((SourceTypeBinding)binding).scope.referenceContext * .compilationResult.compilationUnit.getContents(); } return source; */ Object binding = field(element, "_binding"); Class<?> methodBindingClass = Class.forName("org.eclipse.jdt.internal.compiler.lookup.MethodBinding"); Class<?> referenceBindingClass = Class.forName("org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding"); char[] source = null; if (methodBindingClass.isAssignableFrom(binding.getClass())) { Object sourceMethod = method(binding, "sourceMethod"); if (sourceMethod == null) { return null; } source = (char[]) method(method(field(sourceMethod, "compilationResult"), "getCompilationUnit"), "getContents"); } else if (referenceBindingClass.isAssignableFrom(binding.getClass())) { source = (char[]) method(field(field(field(field(binding, "scope"), "referenceContext"), "compilationResult"), "compilationUnit"), "getContents"); } return source; } @Override public String getHeaderComment(ProcessingEnvironment env, Element type) { try { char[] source = getSource(type); if (source == null) { return null; } return parseHeader(new String(source)); } catch (Exception e) { return Utils.printException(e); } } }