package com.sun.org.apache.xalan.internal.xsltc.compiler.util;
import com.sun.org.apache.bcel.internal.generic.BranchHandle;
import com.sun.org.apache.bcel.internal.generic.BranchInstruction;
import com.sun.org.apache.bcel.internal.generic.CHECKCAST;
import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
import com.sun.org.apache.bcel.internal.generic.GOTO;
import com.sun.org.apache.bcel.internal.generic.IFEQ;
import com.sun.org.apache.bcel.internal.generic.IFGE;
import com.sun.org.apache.bcel.internal.generic.IFGT;
import com.sun.org.apache.bcel.internal.generic.IFLE;
import com.sun.org.apache.bcel.internal.generic.IFLT;
import com.sun.org.apache.bcel.internal.generic.IF_ICMPGE;
import com.sun.org.apache.bcel.internal.generic.IF_ICMPGT;
import com.sun.org.apache.bcel.internal.generic.IF_ICMPLE;
import com.sun.org.apache.bcel.internal.generic.IF_ICMPLT;
import com.sun.org.apache.bcel.internal.generic.ILOAD;
import com.sun.org.apache.bcel.internal.generic.INVOKESPECIAL;
import com.sun.org.apache.bcel.internal.generic.INVOKEVIRTUAL;
import com.sun.org.apache.bcel.internal.generic.ISTORE;
import com.sun.org.apache.bcel.internal.generic.Instruction;
import com.sun.org.apache.bcel.internal.generic.InstructionList;
import com.sun.org.apache.bcel.internal.generic.NEW;
import com.sun.org.apache.bcel.internal.generic.PUSH;
import com.sun.org.apache.xalan.internal.xsltc.compiler.Constants;
public final class BooleanType extends Type {
protected BooleanType() {}
public String toString() {
return "boolean";
}
public boolean identicalTo(Type other) {
return this == other;
}
public String toSignature() {
return "Z";
}
public boolean isSimple() {
return true;
}
public com.sun.org.apache.bcel.internal.generic.Type toJCType() {
return com.sun.org.apache.bcel.internal.generic.Type.BOOLEAN;
}
public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
Type type) {
if (type == Type.String) {
translateTo(classGen, methodGen, (StringType) type);
}
else if (type == Type.Real) {
translateTo(classGen, methodGen, (RealType) type);
}
else if (type == Type.Reference) {
translateTo(classGen, methodGen, (ReferenceType) type);
}
else {
ErrorMsg err = new ErrorMsg(ErrorMsg.DATA_CONVERSION_ERR,
toString(), type.toString());
classGen.getParser().reportError(Constants.FATAL, err);
}
}
public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
StringType type) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
final BranchHandle falsec = il.append(new IFEQ(null));
il.append(new PUSH(cpg, "true"));
final BranchHandle truec = il.append(new GOTO(null));
falsec.setTarget(il.append(new PUSH(cpg, "false")));
truec.setTarget(il.append(NOP));
}
public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
RealType type) {
methodGen.getInstructionList().append(I2D);
}
public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
ReferenceType type) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
il.append(new NEW(cpg.addClass(BOOLEAN_CLASS)));
il.append(DUP_X1);
il.append(SWAP);
il.append(new INVOKESPECIAL(cpg.addMethodref(BOOLEAN_CLASS,
"<init>",
"(Z)V")));
}
public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
Class<?> clazz) {
if (clazz == java.lang.Boolean.TYPE) {
methodGen.getInstructionList().append(NOP);
}
else if (clazz.isAssignableFrom(java.lang.Boolean.class)) {
translateTo(classGen, methodGen, Type.Reference);
}
else {
ErrorMsg err = new ErrorMsg(ErrorMsg.DATA_CONVERSION_ERR,
toString(), clazz.getName());
classGen.getParser().reportError(Constants.FATAL, err);
}
}
public void translateFrom(ClassGenerator classGen, MethodGenerator methodGen,
Class<?> clazz) {
translateTo(classGen, methodGen, clazz);
}
public void translateBox(ClassGenerator classGen,
MethodGenerator methodGen) {
translateTo(classGen, methodGen, Type.Reference);
}
public void translateUnBox(ClassGenerator classGen,
MethodGenerator methodGen) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
il.append(new CHECKCAST(cpg.addClass(BOOLEAN_CLASS)));
il.append(new INVOKEVIRTUAL(cpg.addMethodref(BOOLEAN_CLASS,
BOOLEAN_VALUE,
BOOLEAN_VALUE_SIG)));
}
public Instruction LOAD(int slot) {
return new ILOAD(slot);
}
public Instruction STORE(int slot) {
return new ISTORE(slot);
}
public BranchInstruction GT(boolean tozero) {
return tozero ? (BranchInstruction) new IFGT(null) :
(BranchInstruction) new IF_ICMPGT(null);
}
public BranchInstruction GE(boolean tozero) {
return tozero ? (BranchInstruction) new IFGE(null) :
(BranchInstruction) new IF_ICMPGE(null);
}
public BranchInstruction LT(boolean tozero) {
return tozero ? (BranchInstruction) new IFLT(null) :
(BranchInstruction) new IF_ICMPLT(null);
}
public BranchInstruction LE(boolean tozero) {
return tozero ? (BranchInstruction) new IFLE(null) :
(BranchInstruction) new IF_ICMPLE(null);
}
}