package com.google.code.vimsztool.debug.eval;
import org.antlr.runtime.tree.CommonTree;
import com.google.code.vimsztool.exception.ExpressionEvalException;
import com.sun.jdi.ByteValue;
import com.sun.jdi.CharValue;
import com.sun.jdi.DoubleValue;
import com.sun.jdi.FloatValue;
import com.sun.jdi.IntegerValue;
import com.sun.jdi.LongValue;
import com.sun.jdi.ShortValue;
public class Mod {
public static Object operate(CommonTree leftOp, CommonTree rightOp) {
Object leftValue = ExpEval.evalTreeNode(leftOp);
Object rightValue = ExpEval.evalTreeNode(rightOp);
if ((leftValue instanceof Integer
|| leftValue instanceof Character
|| leftValue instanceof Byte
|| leftValue instanceof Short
|| leftValue instanceof IntegerValue
|| leftValue instanceof CharValue
|| leftValue instanceof ByteValue
|| leftValue instanceof ShortValue
)
&& ( rightValue instanceof Integer
|| rightValue instanceof Character
|| rightValue instanceof Byte
|| rightValue instanceof Short
|| rightValue instanceof IntegerValue
|| rightValue instanceof CharValue
|| rightValue instanceof ByteValue
|| rightValue instanceof ShortValue )
) {
int left =0;
int right = 0;
if (leftValue instanceof Character ) {
left = ((Character)leftValue).charValue();
} else if (leftValue instanceof CharValue) {
left = ((CharValue)leftValue).charValue();
} else {
left = Integer.parseInt(leftValue.toString()) ;
}
if (rightValue instanceof Character) {
right = ((Character)rightValue).charValue();
} else if (rightValue instanceof CharValue) {
right = ((CharValue)rightValue).charValue();
} else {
right = Integer.parseInt(rightValue.toString());
}
return left % right;
}
if (leftValue instanceof Long || leftValue instanceof LongValue) {
return Long.parseLong(leftValue.toString())
% Long.parseLong(rightValue.toString());
}
if (leftValue instanceof Float || leftValue instanceof FloatValue) {
return Float.parseFloat(leftValue.toString())
% Float.parseFloat(rightValue.toString());
}
if (leftValue instanceof Double || leftValue instanceof DoubleValue) {
return Double.parseDouble(leftValue.toString())
% Double.parseDouble(rightValue.toString());
}
throw new ExpressionEvalException("'%' operation can't be done.");
}
}