You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
1.9 KiB
77 lines
1.9 KiB
package jode;
|
|
import sun.tools.java.Type;
|
|
|
|
public class BinaryOperator extends Operator {
|
|
protected Type operandType;
|
|
|
|
public BinaryOperator(Type type, int op) {
|
|
super(type, op);
|
|
operandType = type;
|
|
}
|
|
|
|
public int getOperandCount() {
|
|
return 2;
|
|
}
|
|
|
|
public int getPriority() {
|
|
switch (operator) {
|
|
case 1: case 2:
|
|
return 610;
|
|
case 3: case 4: case 5:
|
|
return 650;
|
|
case 6: case 7: case 8:
|
|
return 600;
|
|
case 9:
|
|
return 450;
|
|
case 10:
|
|
return 410;
|
|
case 11:
|
|
return 420;
|
|
case 12: case 13: case 14: case 15: case 16: case 17:
|
|
case 18: case 19: case 20: case 21: case 22: case 23:
|
|
return 100;
|
|
case LOG_OR_OP:
|
|
return 310;
|
|
case LOG_AND_OP:
|
|
return 350;
|
|
}
|
|
throw new RuntimeException("Illegal operator");
|
|
}
|
|
|
|
public int getOperandPriority(int i) {
|
|
return getPriority() + i;
|
|
}
|
|
|
|
public Type getOperandType(int i) {
|
|
return operandType;
|
|
}
|
|
|
|
public void setOperandType(Type[] inputTypes) {
|
|
operandType = MyType.intersection
|
|
(operandType, MyType.intersection(inputTypes[0],
|
|
inputTypes[1]));
|
|
type = operandType;
|
|
}
|
|
|
|
/**
|
|
* Sets the return type of this operator.
|
|
* @return true if the operand types changed
|
|
*/
|
|
public boolean setType(Type newType) {
|
|
operandType = MyType.intersection(operandType, newType);
|
|
if (type != operandType) {
|
|
type = operandType;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public boolean equals(Object o) {
|
|
return (o instanceof BinaryOperator) &&
|
|
((BinaryOperator)o).operator == operator;
|
|
}
|
|
|
|
public String toString(String[] operands) {
|
|
return operands[0] + getOperatorString() + operands[1];
|
|
}
|
|
}
|
|
|