1.1 --- a/ide/editor/src/main/java/org/apidesign/bck2brwsr/ide/editor/JNIHelper.java Mon Jan 13 12:37:03 2014 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,80 +0,0 @@
1.4 -/**
1.5 - * Back 2 Browser Bytecode Translator
1.6 - * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
1.7 - *
1.8 - * This program is free software: you can redistribute it and/or modify
1.9 - * it under the terms of the GNU General Public License as published by
1.10 - * the Free Software Foundation, version 2 of the License.
1.11 - *
1.12 - * This program is distributed in the hope that it will be useful,
1.13 - * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.14 - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.15 - * GNU General Public License for more details.
1.16 - *
1.17 - * You should have received a copy of the GNU General Public License
1.18 - * along with this program. Look for COPYING file in the top folder.
1.19 - * If not, see http://opensource.org/licenses/GPL-2.0.
1.20 - */
1.21 -package org.apidesign.bck2brwsr.ide.editor;
1.22 -
1.23 -import java.lang.reflect.Method;
1.24 -import java.util.HashMap;
1.25 -import java.util.Map;
1.26 -
1.27 -/**
1.28 - * JNI Helper.
1.29 - * To facilitate lookup of methods by name and signature, instead of manually parsing signatures,
1.30 - * constructs the map of all methods and uses Class.getName() to generate almost-correct signatures.
1.31 - */
1.32 -class JNIHelper {
1.33 -
1.34 - static Method method(String clazz, String method, String signature) {
1.35 - final Map<String, Method> methods = methodMap(JNIHelper.clazz(clazz));
1.36 - return methods.get(methodKey(method, signature));
1.37 - }
1.38 -
1.39 - static Class<?> clazz(String clazz) {
1.40 - try {
1.41 - return Class.forName(clazz);
1.42 - } catch (ClassNotFoundException e) {
1.43 - throw new IllegalArgumentException(e);
1.44 - }
1.45 - }
1.46 -
1.47 - static Map<String, Method> methodMap(final Class<?> clazz) {
1.48 - final Map<String, Method> map = new HashMap<String, Method>();
1.49 - final Method[] methods = clazz.getDeclaredMethods();
1.50 - for (int i = 0; i < methods.length; i++) {
1.51 - final Method method = methods[i];
1.52 - map.put(methodKey(method.getName(), signature(method)), method);
1.53 - }
1.54 - return map;
1.55 - }
1.56 -
1.57 - static String methodKey(String method, String signature) {
1.58 - return method + '@' + signature;
1.59 - }
1.60 -
1.61 - static String signature(final Method method) {
1.62 - final Class<?>[] parameterTypes = method.getParameterTypes();
1.63 - final StringBuilder b = new StringBuilder();
1.64 - for (int j = 0; j < parameterTypes.length; j++) {
1.65 - b.append(signature(parameterTypes[j]));
1.66 - }
1.67 - return b.toString();
1.68 - }
1.69 -
1.70 - static String signature(final Class<?> clazz) {
1.71 - if (clazz == boolean.class) return "Z";
1.72 - else if (clazz == byte.class) return "B";
1.73 - else if (clazz == char.class) return "C";
1.74 - else if (clazz == double.class) return "D";
1.75 - else if (clazz == float.class) return "F";
1.76 - else if (clazz == int.class) return "I";
1.77 - else if (clazz == long.class) return "J";
1.78 - else if (clazz == short.class) return "S";
1.79 - else if (clazz == void.class) return "V";
1.80 - else if (clazz.isArray()) return clazz.getName().replace('.','/');
1.81 - else return "L" + clazz.getName().replace('.','/') + ";";
1.82 - }
1.83 -}