package railo.transformer.bytecode.op;
import org.objectweb.asm.Label;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Type;
import org.objectweb.asm.commons.GeneratorAdapter;
import railo.transformer.bytecode.BytecodeContext;
import railo.transformer.bytecode.BytecodeException;
import railo.transformer.bytecode.cast.CastBoolean;
import railo.transformer.bytecode.expression.ExprBoolean;
import railo.transformer.bytecode.expression.Expression;
import railo.transformer.bytecode.expression.ExpressionBase;
import railo.transformer.bytecode.util.ExpressionUtil;
import railo.transformer.bytecode.util.Types;
public final class OpContional extends ExpressionBase {
private ExprBoolean cont;
private Expression left;
private Expression right;
/**
*
* @see railo.transformer.bytecode.expression.ExpressionBase#_writeOut(org.objectweb.asm.commons.GeneratorAdapter, int)
*/
public Type _writeOut(BytecodeContext bc, int mode) throws BytecodeException {
GeneratorAdapter adapter = bc.getAdapter();
Label yes = new Label();
Label end = new Label();
// cont
ExpressionUtil.visitLine(bc, cont.getStart());
cont.writeOut(bc, MODE_VALUE);
ExpressionUtil.visitLine(bc, cont.getEnd());
adapter.visitJumpInsn(Opcodes.IFEQ, yes);
// left
ExpressionUtil.visitLine(bc, left.getStart());
left.writeOut(bc, MODE_REF);
ExpressionUtil.visitLine(bc, left.getEnd());
adapter.visitJumpInsn(Opcodes.GOTO, end);
// right
ExpressionUtil.visitLine(bc, right.getStart());
adapter.visitLabel(yes);
right.writeOut(bc, MODE_REF);
ExpressionUtil.visitLine(bc, right.getEnd());
adapter.visitLabel(end);
return Types.OBJECT;
}
private OpContional(Expression cont, Expression left, Expression right) {
super(left.getStart(),right.getEnd());
this.cont=CastBoolean.toExprBoolean(cont);
this.left=left;
this.right=right;
}
public static Expression toExpr(Expression cont, Expression left, Expression right) {
return new OpContional(cont,left,right);
}
/* *
* @see railo.transformer.bytecode.expression.Expression#getType()
* /
public int getType() {
return Types._BOOLEAN;
}*/
}