/*
* Copyright (c) 2012, Codename One 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. Codename One designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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 Codename One through http://www.codenameone.com/ if you
* need additional information or have any questions.
*/
package com.codename1.tools.translator.bytecodes;
import com.codename1.tools.translator.ByteCodeClass;
import com.codename1.tools.translator.ByteCodeMethodArg;
import com.codename1.tools.translator.BytecodeMethod;
import com.codename1.tools.translator.Parser;
import com.codename1.tools.translator.Util;
import java.util.ArrayList;
import java.util.List;
import org.objectweb.asm.Opcodes;
/**
*
* @author shannah
*/
public class CustomInvoke extends Instruction {
private String owner;
private String name;
private String desc;
private boolean itf;
private String[] literalArgs;
private int origOpcode;
private String targetObjectLiteral;
private boolean noReturn;
public CustomInvoke(int opcode, String owner, String name, String desc, boolean itf) {
super(-1);
this.origOpcode = opcode;
this.owner = owner;
this.name = name;
this.desc = desc;
this.itf = itf;
}
public void setTargetObjectLiteral(String lit) {
this.targetObjectLiteral = lit;
}
public String getTargetObjectLiteral() {
return targetObjectLiteral;
}
public static CustomInvoke create(Invoke invoke) {
return new CustomInvoke(invoke.getOpcode(), invoke.getOwner(), invoke.getName(), invoke.getDesc(), invoke.isItf());
}
public boolean isMethodUsed(String desc, String name) {
return this.desc.equals(desc) && name.equals(name);
}
public String getMethodUsed() {
return desc + "." + name;
}
@Override
public void addDependencies(List<String> dependencyList) {
String t = owner.replace('.', '_').replace('/', '_').replace('$', '_');
t = unarray(t);
if(t != null && !dependencyList.contains(t)) {
dependencyList.add(t);
}
StringBuilder bld = new StringBuilder();
if(origOpcode != Opcodes.INVOKEINTERFACE && origOpcode != Opcodes.INVOKEVIRTUAL) {
return;
}
bld.append(owner.replace('/', '_').replace('$', '_'));
bld.append("_");
if(name.equals("<init>")) {
bld.append("__INIT__");
} else {
if(name.equals("<clinit>")) {
bld.append("__CLINIT__");
} else {
bld.append(name);
}
}
bld.append("__");
ArrayList<String> args = new ArrayList<String>();
String returnVal = BytecodeMethod.appendMethodSignatureSuffixFromDesc(desc, bld, args);
String str = bld.toString();
BytecodeMethod.addVirtualMethodsInvoked(str);
}
private String findActualOwner(ByteCodeClass bc) {
if(bc == null) {
return owner;
}
List<BytecodeMethod> mtds = bc.getMethods();
if(mtds == null) {
return owner;
}
for(BytecodeMethod mtd : mtds) {
if(mtd.getMethodName().equals(name) && mtd.isStatic()) {
return bc.getClsName();
}
}
return findActualOwner(bc.getBaseClassObject());
}
public boolean methodHasReturnValue() {
return BytecodeMethod.appendMethodSignatureSuffixFromDesc(desc, new StringBuilder(), new ArrayList<String>()) != null;
}
public String getReturnValue() {
ArrayList<String> args = new ArrayList<String>();
StringBuilder sb = new StringBuilder();
String returnVal = BytecodeMethod.appendMethodSignatureSuffixFromDesc(desc, sb, args);
return returnVal;
}
public boolean appendExpression(StringBuilder b) {
// special case for clone on an array which isn't a real method invocation
if(name.equals("clone") && owner.indexOf('[') > -1) {
if (targetObjectLiteral != null) {
b.append("cloneArray(").append(targetObjectLiteral).append(")");
} else {
b.append("cloneArray(POP_OBJ(1))");
}
return true;
}
StringBuilder bld = new StringBuilder();
if(origOpcode == Opcodes.INVOKEINTERFACE || origOpcode == Opcodes.INVOKEVIRTUAL) {
//b.append(" ");
bld.append("virtual_");
}
if(origOpcode == Opcodes.INVOKESTATIC) {
// find the actual class of the static method to workaround javac not defining it correctly
ByteCodeClass bc = Parser.getClassObject(owner.replace('/', '_').replace('$', '_'));
owner = findActualOwner(bc);
}
bld.append(owner.replace('/', '_').replace('$', '_'));
bld.append("_");
if(name.equals("<init>")) {
bld.append("__INIT__");
} else {
if(name.equals("<clinit>")) {
bld.append("__CLINIT__");
} else {
bld.append(name);
}
}
bld.append("__");
ArrayList<String> args = new ArrayList<String>();
String returnVal = BytecodeMethod.appendMethodSignatureSuffixFromDesc(desc, bld, args);
int numLiteralArgs = this.getNumLiteralArgs();
if (numLiteralArgs > 0) {
b.append("/* CustomInvoke */");
}
boolean noPop = false;
b.append(bld);
b.append("(threadStateData");
if(origOpcode != Opcodes.INVOKESTATIC) {
if (targetObjectLiteral == null) {
//b.append(", SP[-");
//b.append(args.size() + 1 - numLiteralArgs);
//b.append("].data.o");
return false;
} else {
b.append(", ").append(targetObjectLiteral);
numLiteralArgs++;
}
}
//int offset = args.size();
//int numArgs = offset;
int argIndex=0;
for(String a : args) {
b.append(", ");
if (literalArgs != null && literalArgs[argIndex] != null) {
b.append(literalArgs[argIndex]);
} else {
return false;
//b.append("SP[-");
//b.append(offset);
//b.append("].data.");
//b.append(a);
//offset--;
}
argIndex++;
}
if (returnVal == null) {
return false;
}
b.append(")");
return true;
}
@Override
public void appendInstruction(StringBuilder b) {
// special case for clone on an array which isn't a real method invocation
if(name.equals("clone") && owner.indexOf('[') > -1) {
if (targetObjectLiteral != null) {
b.append(" PUSH_OBJ(cloneArray(").append(targetObjectLiteral).append("));\n");
} else {
b.append(" POP_MANY_AND_PUSH_OBJ(cloneArray(PEEK_OBJ(1)), 1);\n");
}
return;
}
StringBuilder bld = new StringBuilder();
if(origOpcode == Opcodes.INVOKEINTERFACE || origOpcode == Opcodes.INVOKEVIRTUAL) {
b.append(" ");
bld.append("virtual_");
} else {
b.append(" ");
}
if(origOpcode == Opcodes.INVOKESTATIC) {
// find the actual class of the static method to workaround javac not defining it correctly
ByteCodeClass bc = Parser.getClassObject(owner.replace('/', '_').replace('$', '_'));
owner = findActualOwner(bc);
}
//if(owner.replace('/', '_').replace('$', '_').equals("java_lang_System_1") && name.equals("sleep")) {
// System.out.println("Break");
//}
bld.append(owner.replace('/', '_').replace('$', '_'));
bld.append("_");
if(name.equals("<init>")) {
bld.append("__INIT__");
} else {
if(name.equals("<clinit>")) {
bld.append("__CLINIT__");
} else {
bld.append(name);
}
}
bld.append("__");
ArrayList<String> args = new ArrayList<String>();
String returnVal = BytecodeMethod.appendMethodSignatureSuffixFromDesc(desc, bld, args);
int numLiteralArgs = this.getNumLiteralArgs();
if (numLiteralArgs > 0) {
b.append("/* CustomInvoke */");
}
boolean noPop = false;
if(returnVal == null || noReturn) {
b.append(bld);
} else {
if(args.size() - numLiteralArgs == 0 && origOpcode == Opcodes.INVOKESTATIC) {
// special case for static method
if(returnVal.equals("JAVA_OBJECT")) {
b.append("PUSH_OBJ");
} else {
if(returnVal.equals("JAVA_INT")) {
b.append("PUSH_INT");
} else {
if(returnVal.equals("JAVA_LONG")) {
b.append("PUSH_LONG");
} else {
if(returnVal.equals("JAVA_DOUBLE")) {
b.append("PUSH_DOUBLE");
} else {
if(returnVal.equals("JAVA_FLOAT")) {
b.append("PUSH_FLOAT");
} else {
throw new UnsupportedOperationException("Unknown type: " + returnVal);
}
}
}
}
}
//b.append(returnVal);
noPop = true;
b.append("(");
} else {
//b.append("POP_MANY_AND_");
//b.append(returnVal);
b.append("{ ");
b.append(returnVal);
b.append(" tmpResult = ");
}
b.append(bld);
}
b.append("(threadStateData");
if(origOpcode != Opcodes.INVOKESTATIC) {
if (targetObjectLiteral == null) {
b.append(", SP[-");
b.append(args.size() + 1 - numLiteralArgs);
b.append("].data.o");
} else {
b.append(", "+targetObjectLiteral);
numLiteralArgs++;
}
}
int offset = args.size();
//int numArgs = offset;
int argIndex=0;
for(String a : args) {
b.append(", ");
if (literalArgs != null && literalArgs[argIndex] != null) {
b.append(literalArgs[argIndex]);
} else {
b.append("SP[-");
b.append(offset);
b.append("].data.");
b.append(a);
offset--;
}
argIndex++;
}
if(noPop) {
b.append("));\n");
return;
}
if(returnVal != null && !noReturn) {
b.append(");\n");
if(origOpcode != Opcodes.INVOKESTATIC) {
if(args.size() - numLiteralArgs > 0) {
b.append(" SP -= ");
b.append(args.size() - numLiteralArgs);
b.append(";\n");
}
} else {
if(args.size() - numLiteralArgs > 1) {
b.append(" SP -= ");
b.append(args.size() - numLiteralArgs - 1);
b.append(";\n");
}
}
if (targetObjectLiteral == null) {
if(returnVal.equals("JAVA_OBJECT")) {
b.append(" SP[-1].data.o = tmpResult; SP[-1].type = CN1_TYPE_OBJECT; }\n");
} else {
if(returnVal.equals("JAVA_INT")) {
b.append(" SP[-1].data.i = tmpResult; SP[-1].type = CN1_TYPE_INT; }\n");
} else {
if(returnVal.equals("JAVA_LONG")) {
b.append(" SP[-1].data.l = tmpResult; SP[-1].type = CN1_TYPE_LONG; }\n");
} else {
if(returnVal.equals("JAVA_DOUBLE")) {
b.append(" SP[-1].data.d = tmpResult; SP[-1].type = CN1_TYPE_DOUBLE; }\n");
} else {
if(returnVal.equals("JAVA_FLOAT")) {
b.append(" SP[-1].data.f = tmpResult; SP[-1].type = CN1_TYPE_FLOAT; }\n");
} else {
throw new UnsupportedOperationException("Unknown type: " + returnVal);
}
}
}
}
}
} else {
if(returnVal.equals("JAVA_OBJECT")) {
b.append(" PUSH_OBJ(tmpResult); }\n");
} else {
if(returnVal.equals("JAVA_INT")) {
b.append(" PUSH_INT(tmpResult); }\n");
} else {
if(returnVal.equals("JAVA_LONG")) {
b.append(" PUSH_LONG(tmpResult); }\n");
} else {
if(returnVal.equals("JAVA_DOUBLE")) {
b.append(" PUSH_DOUBLE(tmpResult); }\n");
} else {
if(returnVal.equals("JAVA_FLOAT")) {
b.append(" PUSH_FLOAT(tmpResult); }\n");
} else {
throw new UnsupportedOperationException("Unknown type: " + returnVal);
}
}
}
}
}
}
return;
}
b.append("); ");
int val;
if(origOpcode != Opcodes.INVOKESTATIC) {
val = args.size() + 1 - numLiteralArgs;
} else {
val = args.size() - numLiteralArgs;
}
if(val > 0) {
b.append(" SP -= ");
b.append(val);
b.append(";\n");
} else {
b.append("\n");
}
}
public List<ByteCodeMethodArg> getArgs() {
return Util.getMethodArgs(desc);
}
public void setLiteralArg(int index, String arg) {
if (literalArgs == null) {
literalArgs = new String[getArgs().size()];
}
if (index >= literalArgs.length) {
throw new RuntimeException("Attempt to set literal arg "+index+" on method invocation that only takes "+literalArgs.length+" args. Method: "+owner+"."+name+" "+desc);
}
literalArgs[index] = arg;
}
private int getNumLiteralArgs() {
if (literalArgs == null) {
return 0;
}
int count = 0;
for (int i=0; i < literalArgs.length; i++) {
if (literalArgs[i] != null) {
count++;
}
}
return count;
}
/**
* @return the noReturn
*/
public boolean isNoReturn() {
return noReturn;
}
/**
* @param noReturn the noReturn to set
*/
public void setNoReturn(boolean noReturn) {
this.noReturn = noReturn;
}
}