ExpConcat.java

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package plp.expressions1.expression;

import plp.expressions1.util.Tipo;

public class ExpConcat extends ExpBinaria{
  

        public ExpConcat(Expressao esq, Expressao dir){
                super(esq, dir, "++");
        } 

        public Valor avaliar(){
                return new ValorString(
                                        ( (ValorString) getEsq().avaliar()).valor() +
                                        ( (ValorString) getDir().avaliar()).valor()
                );
        }

        protected boolean checaTipoElementoTerminal() {
                return (getEsq().getTipo().eString() && getDir().getTipo().eString());
        }

        public Tipo getTipo() {
                return Tipo.TIPO_STRING;
        }

}

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