/**
*
* Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
**/
package lucee.transformer.bytecode.visitor;
import lucee.transformer.bytecode.BytecodeContext;
import org.objectweb.asm.Label;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.commons.GeneratorAdapter;
public final class DecisionIntVisitor {
public static final int GT=Opcodes.IF_ICMPGT;
public static final int GTE=Opcodes.IF_ICMPGE;
public static final int LT=Opcodes.IF_ICMPLT;
public static final int LTE=Opcodes.IF_ICMPLE;
public static final int EQ=Opcodes.IF_ICMPEQ;
public static final int NEQ=Opcodes.IF_ICMPNE;
private int operation;
public void visitBegin() {
}
public void visitMiddle(int operation) {
this.operation=operation;
}
public void visitGT() {
this.operation=GT;
}
public void visitGTE() {
this.operation=GTE;
}
public void visitLT() {
this.operation=LT;
}
public void visitLTE() {
this.operation=LTE;
}
public void visitEQ() {
this.operation=EQ;
}
public void visitNEQ() {
this.operation=NEQ;
}
public void visitEnd(BytecodeContext bc) {
GeneratorAdapter adapter = bc.getAdapter();
Label l1 = new Label();
adapter.visitJumpInsn(operation, l1);
//mv.visitJumpInsn(IF_ICMPGT, l1);
adapter.visitInsn(Opcodes.ICONST_0);
Label l2 = new Label();
adapter.visitJumpInsn(Opcodes.GOTO, l2);
adapter.visitLabel(l1);
adapter.visitInsn(Opcodes.ICONST_1);
adapter.visitLabel(l2);
}
}