Exemplos.java

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package plp.expressions2;

import java.util.LinkedList;
import java.util.List;

import plp.expressions2.declaration.DecVariavel;
import plp.expressions2.expression.ExpDeclaracao;
import plp.expressions2.expression.ExpSoma;
import plp.expressions2.expression.Id;
import plp.expressions2.expression.ValorInteiro;

public class Exemplos {

        public static void main(String [] args){
        
        /*
        // let var x = 3 in
        //     let var x = x + 1, var y = x in
        //           x + y
        //           
        
        
            Id idX = new Id("x");
            Id idY = new Id("y");
        
        
            DecVariavel decVar1 = new DecVariavel( idX ,  new ValorInteiro(3) );
        
        
            DecVariavel decVar2 = new DecVariavel( idX , new ExpSoma( idX, new ValorInteiro(1) ) );
        
        
            DecVariavel decVar3 = new DecVariavel( idY ,  idX );
        
        
            ExpDeclaracao expDeclara2 = new ExpDeclaracao(new SeqDec(decVar2,
                                                                                                                                 new SeqDec(decVar3)),
                                                                                                          new ExpSoma(idX,idY));
        
        
            ExpDeclaracao expDeclara = new ExpDeclaracao(new SeqDec(decVar1),expDeclara2);
        
        
            Programa prg = new Programa( expDeclara );
        
        
                try {
                        if (!prg.checaTipo()) {
                                System.out.println("Erro de tipo");
                        } else {
                                System.out.println(prg.executar());
                        }
                } catch (Exception e) {
                        System.out.println("Erro: " + e);
                        e.printStackTrace();
                }
        
        */
        // let var x = 3 in
        //     let var y = x + 1 in
        //         let var x = 5 in
        //             y
                Id idX = new Id("x");
                Id idY = new Id("y");
        
                DecVariavel decX2 = new DecVariavel(idX, new ValorInteiro(5));
                List<DecVariavel> list3 = new LinkedList<DecVariavel>();
                list3.add(decX2);
                ExpDeclaracao exp3 = new ExpDeclaracao(list3, idY);
                
                DecVariavel decY = new DecVariavel(idY, new ExpSoma(idX, new ValorInteiro(1)));
                List<DecVariavel> list2 = new LinkedList<DecVariavel>();
                list2.add(decY);
                ExpDeclaracao exp2 = new ExpDeclaracao(list2, exp3);
                
                DecVariavel decX1 = new DecVariavel(idX, new ValorInteiro(3));
                List<DecVariavel> list1 = new LinkedList<DecVariavel>();
                list1.add(decX1);
                ExpDeclaracao exp1 = new ExpDeclaracao(list1, exp2);
                
                Programa prg = new Programa(exp1);

                try {
                        if (!prg.checaTipo()) {
                                System.out.println("Erro de tipo");
                        } else {
                                System.out.println(prg.executar());
                        }
                } catch (Exception e) {
                        System.out.println("Erro: " + e);
                        e.printStackTrace();
                }

        }

}

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