Mercurial > hg > truffle
diff graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/compiler/AbstractCompiler.java @ 16759:23415229349b
Truffle-DSL: new package structure.
author | Christian Humer <christian.humer@gmail.com> |
---|---|
date | Mon, 11 Aug 2014 15:57:14 +0200 |
parents | graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/compiler/AbstractCompiler.java@f78eafd5ba9e |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/compiler/AbstractCompiler.java Mon Aug 11 15:57:14 2014 +0200 @@ -0,0 +1,83 @@ +/* + * 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.java.compiler; + +import java.lang.reflect.*; + +public abstract class AbstractCompiler implements Compiler { + + protected static Object method(Object o, String methodName) throws Exception { + Method method = o.getClass().getMethod(methodName); + method.setAccessible(true); + return method.invoke(o); + } + + protected static Object method(Object o, String methodName, Class<?>[] paramTypes, Object... values) throws Exception { + Method method = o.getClass().getMethod(methodName, paramTypes); + method.setAccessible(true); + return method.invoke(o, values); + } + + protected static Object field(Object o, String fieldName) throws Exception { + if (o == null) { + return null; + } + Class<?> clazz = o.getClass(); + Field field = null; + try { + field = clazz.getField(fieldName); + } catch (NoSuchFieldException e) { + while (clazz != null) { + try { + field = clazz.getDeclaredField(fieldName); + break; + } catch (NoSuchFieldException e1) { + clazz = clazz.getSuperclass(); + } + } + if (field == null) { + throw e; + } + } + field.setAccessible(true); + return field.get(o); + } + + protected static String parseHeader(String content) { + int index = content.indexOf("/*"); + if (index == -1) { + return null; + } + if (!content.substring(0, index).trim().equals("")) { + // just whitespace before + return null; + } + + int endIndex = content.indexOf("*/", index); + if (endIndex == -1) { + return null; + } + return content.substring(index, endIndex + 2); + } + +}