Subtraction.java

Subtraction

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package expression;
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A Subtraction consists of a leftHandSide and a rightHandSide expression, which are supposed to be subtracted.

For example

new Subtraction(new Identifier("x"), new Int(2))

represents the code

x - 2

public class Subtraction extends Expression {
    public final Expression leftHandSide;
    public final Expression rightHandSide;

    public Subtraction(Expression leftHandSide, Expression rightHandSide) {
        this.leftHandSide = leftHandSide;
        this.rightHandSide = rightHandSide;
    }
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    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        Subtraction that = (Subtraction) o;

        if (!leftHandSide.equals(that.leftHandSide)) return false;
        return rightHandSide.equals(that.rightHandSide);

    }
}