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/*******************************************************************************
* Copyright (c) 2004, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.tools.internal;
import java.io.*;
import java.lang.reflect.*;
import java.util.*;
import org.eclipse.jdt.core.dom.*;
import org.eclipse.jdt.core.dom.Modifier;
public class ReflectMethod extends ReflectItem implements JNIMethod {
Method method;
ReflectType returnType, returnType64;
ReflectType[] paramTypes, paramTypes64;
ReflectClass declaringClass;
Boolean unique;
public ReflectMethod(ReflectClass declaringClass, Method method, String source, CompilationUnit unit) {
this.method = method;
this.declaringClass = declaringClass;
Class<?> returnType = method.getReturnType();
Class<?>[] paramTypes = method.getParameterTypes();
this.returnType = new ReflectType(returnType);
this.returnType64 = this.returnType;
this.paramTypes = new ReflectType[paramTypes.length];
this.paramTypes64 = new ReflectType[paramTypes.length];
for (int i = 0; i < this.paramTypes.length; i++) {
this.paramTypes[i] = this.paramTypes64[i] = new ReflectType(paramTypes[i]);
}
boolean changes = false;
if ((method.getModifiers() & Modifier.NATIVE) != 0) {
changes = canChange64(returnType);
if (!changes) {
for (int i = 0; i < paramTypes.length && !changes; i++) {
changes |= canChange64(paramTypes[i]);
}
}
}
if (changes && new File(declaringClass.sourcePath).exists()) {
String name = method.getName();
TypeDeclaration type = (TypeDeclaration)unit.types().get(0);
MethodDeclaration decl = null;
MethodDeclaration[] methods = type.getMethods();
for (int i = 0; i < methods.length && decl == null; i++) {
MethodDeclaration node = methods[i];
if (node.getName().getIdentifier().equals(name)) {
if (!declaringClass.getSimpleName(returnType).equals(node.getReturnType2().toString())) continue;
List<?> parameters = node.parameters();
if (parameters.size() != paramTypes.length) continue;
decl = node;
for (int j = 0; j < paramTypes.length; j++) {
if (!declaringClass.getSimpleName(paramTypes[j]).equals(((SingleVariableDeclaration)parameters.get(j)).getType().toString())) {
decl = null;
break;
}
}
}
}
for (int i = 0; i < paramTypes.length; i++) {
if (canChange64(paramTypes[i])) {
Class<?> clazz = paramTypes[i];
SingleVariableDeclaration node = (SingleVariableDeclaration)decl.parameters().get(i);
String s = source.substring(node.getStartPosition(), node.getStartPosition() + node.getLength());
if (clazz == int.class && s.indexOf("int /*long*/") != -1) this.paramTypes64[i] = new ReflectType(long.class);
else if (clazz == int[].class && (s.indexOf("int /*long*/") != -1 || s.indexOf("int[] /*long[]*/") != -1)) this.paramTypes64[i] = new ReflectType(long[].class);
else if (clazz == float.class && s.indexOf("float /*double*/") != -1) this.paramTypes64[i] = new ReflectType(double.class);
else if (clazz == float[].class && (s.indexOf("float /*double*/") != -1|| s.indexOf("float[] /*double[]*/") != -1)) this.paramTypes64[i] = new ReflectType(double[].class);
else if (clazz == long.class && s.indexOf("long /*int*/") != -1) this.paramTypes[i] = new ReflectType(int.class);
else if (clazz == long[].class && (s.indexOf("long /*int*/") != -1|| s.indexOf("long[] /*int[]*/") != -1)) this.paramTypes[i] = new ReflectType(int[].class);
else if (clazz == double.class && s.indexOf("double /*float*/") != -1) this.paramTypes[i] = new ReflectType(float.class);
else if (clazz == double[].class && (s.indexOf("double /*float*/") != -1|| s.indexOf("double[] /*float[]*/") != -1)) this.paramTypes[i] = new ReflectType(float[].class);
}
}
if (canChange64(returnType)) {
Class<?> clazz = returnType;
ASTNode node = decl.getReturnType2();
String s = source.substring(node.getStartPosition(), decl.getName().getStartPosition());
if (clazz == int.class && s.indexOf("int /*long*/") != -1) this.returnType64 = new ReflectType(long.class);
else if (clazz == int[].class && (s.indexOf("int /*long*/") != -1 || s.indexOf("int[] /*long[]*/") != -1)) this.returnType64 = new ReflectType(long[].class);
else if (clazz == float.class && s.indexOf("float /*double*/") != -1) this.returnType64 = new ReflectType(double.class);
else if (clazz == float[].class && (s.indexOf("float /*double*/") != -1|| s.indexOf("float[] /*double[]*/") != -1)) this.returnType64 = new ReflectType(double[].class);
else if (clazz == long.class && s.indexOf("long /*int*/") != -1) this.returnType = new ReflectType(int.class);
else if (clazz == long[].class && (s.indexOf("long /*int*/") != -1|| s.indexOf("long[] /*int[]*/") != -1)) this.returnType = new ReflectType(int[].class);
else if (clazz == double.class && s.indexOf("double /*float*/") != -1) this.returnType = new ReflectType(float.class);
else if (clazz == double[].class && (s.indexOf("double /*float*/") != -1|| s.indexOf("double[] /*float[]*/") != -1)) this.returnType = new ReflectType(float[].class);
}
}
}
@Override
public int hashCode() {
return method.hashCode();
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof ReflectMethod)) return false;
return ((ReflectMethod)obj).method.equals(method);
}
@Override
public JNIClass getDeclaringClass() {
return declaringClass;
}
@Override
public int getModifiers() {
return method.getModifiers();
}
@Override
public String getName() {
return method.getName();
}
@Override
public boolean isNativeUnique() {
if (unique != null) return unique.booleanValue();
boolean result = true;
String name = getName();
JNIMethod[] methods = declaringClass.getDeclaredMethods();
for (int i = 0; i < methods.length; i++) {
JNIMethod mth = methods[i];
if ((mth.getModifiers() & Modifier.NATIVE) != 0 &&
this != mth && !this.equals(mth) &&
name.equals(mth.getName()))
{
result = false;
break;
}
}
unique = Boolean.valueOf(result);
return result;
}
@Override
public JNIType[] getParameterTypes() {
return paramTypes;
}
@Override
public JNIType[] getParameterTypes64() {
return paramTypes64;
}
@Override
public JNIParameter[] getParameters() {
Class<?>[] paramTypes = method.getParameterTypes();
ReflectParameter[] result = new ReflectParameter[paramTypes.length];
for (int i = 0; i < paramTypes.length; i++) {
result[i] = new ReflectParameter(this, i);
}
return result;
}
@Override
public JNIType getReturnType() {
return returnType;
}
@Override
public JNIType getReturnType64() {
return returnType64;
}
@Override
public String getAccessor() {
return (String)getParam("accessor");
}
@Override
public String getExclude() {
return (String)getParam("exclude");
}
@Override
public String getMetaData() {
String className = getDeclaringClass().getSimpleName();
String key = className + "_" + JNIGenerator.getFunctionName(this);
MetaData metaData = declaringClass.metaData;
String value = metaData.getMetaData(key, null);
if (value == null) {
key = className + "_" + method.getName();
value = metaData.getMetaData(key, null);
}
/*
* Support for 64 bit port.
*/
if (value == null) {
JNIType[] paramTypes = getParameterTypes();
if (convertTo32Bit(paramTypes, true)) {
key = className + "_" + JNIGenerator.getFunctionName(this, paramTypes);
value = metaData.getMetaData(key, null);
}
if (value == null) {
paramTypes = getParameterTypes();
if (convertTo32Bit(paramTypes, false)) {
key = className + "_" + JNIGenerator.getFunctionName(this, paramTypes);
value = metaData.getMetaData(key, null);
}
}
}
/*
* Support for lock.
*/
if (value == null && method.getName().startsWith("_")) {
key = className + "_" + JNIGenerator.getFunctionName(this).substring(2);
value = metaData.getMetaData(key, null);
if (value == null) {
key = className + "_" + method.getName().substring(1);
value = metaData.getMetaData(key, null);
}
}
if (value == null) value = "";
return value;
}
@Override
public void setAccessor(String str) {
setParam("accessor", str);
}
@Override
public void setExclude(String str) {
setParam("exclude", str);
}
@Override
public void setMetaData(String value) {
String key;
String className = declaringClass.getSimpleName();
if (isNativeUnique()) {
key = className + "_" + method.getName ();
} else {
key = className + "_" + JNIGenerator.getFunctionName(this);
}
declaringClass.metaData.setMetaData(key, value);
}
@Override
public String toString() {
return method.toString();
}
}
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