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Groovy: A powerful, dynamic language for the JVM
/*
* Copyright 2003-2007 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codehaus.groovy.runtime.dgmimpl.arrays;
import groovy.lang.GString;
import groovy.lang.MetaClassImpl;
import groovy.lang.MetaMethod;
import org.codehaus.groovy.reflection.CachedClass;
import org.codehaus.groovy.reflection.ReflectionCache;
import org.codehaus.groovy.runtime.callsite.CallSite;
import org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite;
import org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation;
public class DoubleArrayPutAtMetaMethod extends ArrayPutAtMetaMethod {
private static final CachedClass OBJECT_CLASS = ReflectionCache.OBJECT_CLASS;
private static final CachedClass ARR_CLASS = ReflectionCache.getCachedClass(double[].class);
private static final CachedClass [] PARAM_CLASS_ARR = new CachedClass[] {INTEGER_CLASS, OBJECT_CLASS};
public DoubleArrayPutAtMetaMethod() {
parameterTypes = PARAM_CLASS_ARR;
}
public final CachedClass getDeclaringClass() {
return ARR_CLASS;
}
public Object invoke(Object object, Object[] args) {
final double[] objects = (double[]) object;
final int index = normaliseIndex(((Integer) args[0]).intValue(), objects.length);
Object newValue = args[1];
if (!(newValue instanceof Double)) {
if(newValue instanceof Character || newValue instanceof String || newValue instanceof GString) {
Character ch = DefaultTypeTransformation.getCharFromSizeOneString(newValue);
objects[index] = ((Double)DefaultTypeTransformation.castToType(ch, Double.class)).doubleValue();
} else {
Number n = (Number) newValue;
objects[index] = ((Number)newValue).doubleValue();
}
}
else
objects[index] = ((Double)args[1]).doubleValue();
return null;
}
public CallSite createPojoCallSite(CallSite site, MetaClassImpl metaClass, MetaMethod metaMethod, Class[] params, Object receiver, Object[] args) {
if (!(args [0] instanceof Integer) || !(args [1] instanceof Double))
return PojoMetaMethodSite.createNonAwareCallSite(site, metaClass, metaMethod, params, args);
else
return new MyPojoMetaMethodSite(site, metaClass, metaMethod, params);
}
private static class MyPojoMetaMethodSite extends PojoMetaMethodSite {
public MyPojoMetaMethodSite(CallSite site, MetaClassImpl metaClass, MetaMethod metaMethod, Class[] params) {
super(site, metaClass, metaMethod, params);
}
public Object call(Object receiver, Object[] args) throws Throwable {
if ((receiver instanceof double[] && args[0] instanceof Integer && args[1] instanceof Double )
&& checkPojoMetaClass()) {
final double[] objects = (double[]) receiver;
objects[normaliseIndex(((Integer) args[0]).intValue(), objects.length)] = ((Double)args[1]).doubleValue();
return null;
}
else
return super.call(receiver,args);
}
public Object call(Object receiver, Object arg1, Object arg2) throws Throwable {
if (checkPojoMetaClass()) {
try {
final double[] objects = (double []) receiver;
objects[normaliseIndex(((Integer) arg1).intValue(), objects.length)] = ((Double)arg2).doubleValue();
return null;
}
catch (ClassCastException e) {
if ((receiver instanceof double[]) && (arg1 instanceof Integer))
throw e;
}
}
return super.call(receiver,arg1,arg2);
}
}
}