Id.java

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package plp.expressions2.expression;

import plp.expressions1.util.Tipo;
import plp.expressions2.memory.AmbienteCompilacao;
import plp.expressions2.memory.AmbienteExecucao;
import plp.expressions2.memory.VariavelNaoDeclaradaException;

public class Id implements Expressao {

        private String  idName;

        public Id(String strName) {
                idName =  strName;
        }

        public boolean equals(Object obj) {
                if (obj instanceof Id) {
                        return ((Id) obj).idName.equals(this.idName);
                }
                return false;
        }

        public int hashCode() {
                return idName.hashCode();
        }

        public String toString() {
                return idName;
        }

        public Valor avaliar(AmbienteExecucao ambiente) throws VariavelNaoDeclaradaException {
                return ambiente.get(this);
        }

        public boolean checaTipo(AmbienteCompilacao amb) throws VariavelNaoDeclaradaException {
                boolean result = true;
                Tipo t = amb.get(this); // se estiver no ambiente, entao esta ok.
                return result;
        }

        public Tipo getTipo(AmbienteCompilacao amb) throws VariavelNaoDeclaradaException {
                return amb.get(this);
        }

        public String getIdName() {
                return idName;
        }

        public void setIdName(String idName) {
                this.idName = idName;
        }

}

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