1.1 --- a/emul/mini/src/main/java/org/apidesign/bck2brwsr/emul/reflect/AnnotationImpl.java Fri Mar 22 16:59:47 2013 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,130 +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.emul.reflect;
1.22 -
1.23 -import java.lang.annotation.Annotation;
1.24 -import java.lang.reflect.Method;
1.25 -import java.lang.reflect.Modifier;
1.26 -import org.apidesign.bck2brwsr.core.JavaScriptBody;
1.27 -
1.28 -/**
1.29 - *
1.30 - * @author Jaroslav Tulach <jtulach@netbeans.org>
1.31 - */
1.32 -public final class AnnotationImpl implements Annotation {
1.33 - private final Class<? extends Annotation> type;
1.34 -
1.35 - public AnnotationImpl(Class<? extends Annotation> type) {
1.36 - this.type = type;
1.37 - }
1.38 -
1.39 - public Class<? extends Annotation> annotationType() {
1.40 - return type;
1.41 - }
1.42 -
1.43 - @JavaScriptBody(args = { "a", "n", "arr", "values" }, body = ""
1.44 - + "function f(val, prop, clazz) {\n"
1.45 - + " return function() {\n"
1.46 - + " if (clazz == null) return val[prop];\n"
1.47 - + " if (clazz.isArray__Z()) {\n"
1.48 - + " var valarr = val[prop];\n"
1.49 - + " var cmp = clazz.getComponentType__Ljava_lang_Class_2();\n"
1.50 - + " var retarr = vm.java_lang_reflect_Array(false).newInstance__Ljava_lang_Object_2Ljava_lang_Class_2I(cmp, valarr.length);\n"
1.51 - + " for (var i = 0; i < valarr.length; i++) {\n"
1.52 - + " retarr[i] = CLS.prototype.c__Ljava_lang_Object_2Ljava_lang_Class_2Ljava_lang_Object_2(cmp, valarr[i]);\n"
1.53 - + " }\n"
1.54 - + " return retarr;\n"
1.55 - + " }\n"
1.56 - + " return CLS.prototype.c__Ljava_lang_Object_2Ljava_lang_Class_2Ljava_lang_Object_2(clazz, val[prop]);\n"
1.57 - + " };\n"
1.58 - + "}\n"
1.59 - + "for (var i = 0; i < arr.length; i += 3) {\n"
1.60 - + " var m = arr[i];\n"
1.61 - + " var p = arr[i + 1];\n"
1.62 - + " var c = arr[i + 2];\n"
1.63 - + " a[m] = f(values, p, c);\n"
1.64 - + "}\n"
1.65 - + "a['$instOf_' + n] = true;\n"
1.66 - + "return a;"
1.67 - )
1.68 - private static native <T extends Annotation> T create(
1.69 - AnnotationImpl a, String n, Object[] methodsAndProps, Object values
1.70 - );
1.71 -
1.72 - private static Object c(Class<? extends Annotation> a, Object v) {
1.73 - return create(a, v);
1.74 - }
1.75 -
1.76 - public static <T extends Annotation> T create(Class<T> annoClass, Object values) {
1.77 - return create(new AnnotationImpl(annoClass),
1.78 - annoClass.getName().replace('.', '_'),
1.79 - findProps(annoClass), values
1.80 - );
1.81 - }
1.82 -
1.83 - public static Annotation[] create(Object anno) {
1.84 - String[] names = findNames(anno);
1.85 - Annotation[] ret = new Annotation[names.length];
1.86 - for (int i = 0; i < names.length; i++) {
1.87 - String annoNameSlash = names[i].substring(1, names[i].length() - 1);
1.88 - Class<? extends Annotation> annoClass;
1.89 - try {
1.90 - annoClass = (Class<? extends Annotation>)Class.forName(annoNameSlash.replace('/', '.'));
1.91 - } catch (ClassNotFoundException ex) {
1.92 - throw new IllegalStateException("Can't find annotation class " + annoNameSlash);
1.93 - }
1.94 - ret[i] = create(
1.95 - new AnnotationImpl(annoClass),
1.96 - annoNameSlash.replace('/', '_'),
1.97 - findProps(annoClass),
1.98 - findData(anno, names[i])
1.99 - );
1.100 - }
1.101 - return ret;
1.102 - }
1.103 - @JavaScriptBody(args = "anno", body =
1.104 - "var arr = new Array();"
1.105 - + "var props = Object.getOwnPropertyNames(anno);\n"
1.106 - + "for (var i = 0; i < props.length; i++) {\n"
1.107 - + " var p = props[i];\n"
1.108 - + " arr.push(p);"
1.109 - + "}"
1.110 - + "return arr;"
1.111 - )
1.112 - private static native String[] findNames(Object anno);
1.113 -
1.114 - @JavaScriptBody(args={ "anno", "p"}, body="return anno[p];")
1.115 - private static native Object findData(Object anno, String p);
1.116 -
1.117 - private static Object[] findProps(Class<?> annoClass) {
1.118 - final Method[] marr = MethodImpl.findMethods(annoClass, Modifier.PUBLIC);
1.119 - Object[] arr = new Object[marr.length * 3];
1.120 - int pos = 0;
1.121 - for (Method m : marr) {
1.122 - arr[pos++] = MethodImpl.toSignature(m);
1.123 - arr[pos++] = m.getName();
1.124 - final Class<?> rt = m.getReturnType();
1.125 - if (rt.isArray()) {
1.126 - arr[pos++] = rt.getComponentType().isAnnotation() ? rt : null;
1.127 - } else {
1.128 - arr[pos++] = rt.isAnnotation() ? rt : null;
1.129 - }
1.130 - }
1.131 - return arr;
1.132 - }
1.133 -}