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An easy-to-learn/use static analysis framework for Java
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/*
* Tai-e: A Static Analysis Framework for Java
*
* Copyright (C) 2022 Tian Tan
* Copyright (C) 2022 Yue Li
*
* This file is part of Tai-e.
*
* Tai-e 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 3
* of the License, or (at your option) any later version.
*
* Tai-e 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 Tai-e. If not, see .
*/
package pascal.taie.ir.exp;
import pascal.taie.language.type.DoubleType;
import pascal.taie.language.type.FloatType;
import pascal.taie.language.type.IntType;
import pascal.taie.language.type.LongType;
import pascal.taie.language.type.Type;
/**
* Representation of comparison expression, e.g., cmp.
*/
public class ComparisonExp extends AbstractBinaryExp {
public enum Op implements BinaryExp.Op {
CMP("cmp"),
CMPL("cmpl"),
CMPG("cmpg"),
;
private final String instruction;
Op(String instruction) {
this.instruction = instruction;
}
@Override
public String toString() {
return instruction;
}
}
private final Op op;
public ComparisonExp(Op op, Var value1, Var value2) {
super(value1, value2);
this.op = op;
}
@Override
protected void validate() {
Type v1type = operand1.getType();
assert v1type.equals(operand2.getType());
assert v1type.equals(LongType.LONG) ||
v1type.equals(FloatType.FLOAT) ||
v1type.equals(DoubleType.DOUBLE);
}
@Override
public Op getOperator() {
return op;
}
@Override
public IntType getType() {
return IntType.INT;
}
@Override
public T accept(ExpVisitor visitor) {
return visitor.visit(this);
}
}
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