Exemple #1
0
        public void TestSet()
        {
            var foo = new Id(new Word("foo", Tag.ID), Sara.Type.Int, 0x20);
            var bar = new Constant(55);
            var set = new Set(foo, bar);

            set.Gen(10, 20);
            //output:
            //      	foo = 55
        }
        public void TestConstant()
        {
            Assert.AreEqual("true", Constant.True.ToString());
            Assert.AreEqual("false", Constant.False.ToString());
            Constant.True.Jumping(42, 99);
            Constant.False.Jumping(100, 8);
            //output :
            //goto L42
            //goto L8

            var c1 = new Constant(42);
            Assert.AreEqual("42", c1.ToString());
            var c2 = new Constant(new Real(3.14f), Sara.Type.Int);
            Assert.AreEqual("3.14", c2.ToString());
        }
Exemple #3
0
 public Access Offset(Id a)
 {
     Expr i, w, t1, t2, loc;
     Type type = a.Type;
     this.Match('[');
     i = this.Bool();
     this.Match(']');
     type = (type as Array).Of;
     w = new Constant(type.Width);
     t1 = new Arith(new Token('*'), i, w);
     loc = t1;
     while(_look.TagValue == '[')
     {
         this.Match('[');
         i = this.Bool();
         this.Match(']');
         type = (type as Array).Of;
         w = new Constant(type.Width);
         t1 = new Arith(new Token('*'), i, w);
         t2 = new Arith(new Token('+'), loc, t1);
         loc = t2;
     }
     return new Access(a, loc, type);
 }
Exemple #4
0
        public Expr Factor()
        {
            Expr expr = null;
            switch(_look.TagValue)
            {
                case'(':
                    this.Move();
                    expr = this.Bool();
                    this.Match(')');
                    return expr;

                case Tag.NUM:
                    expr = new Constant(_look, Sara.Type.Int);
                    this.Move();
                    return expr;

                case Tag.REAL:
                    expr = new Constant(_look, Sara.Type.Float);
                    this.Move();
                    return expr;

                case Tag.TRUE:
                    expr = Constant.True;
                    this.Move();
                    return expr;

                case Tag.FALSE:
                    expr = Constant.False;
                    this.Move();
                    return expr;

                default:
                    this.Error("syntax error");
                    return expr;

                case Tag.ID:
                    string s = _look.ToString();
                    Id id = this.Top.Get(_look);
                    if (id == null)
                        this.Error(_look.ToString() + " undeclared");
                    this.Move();
                    if (_look.TagValue != '[')
                        return id;
                    else
                        return this.Offset(id);
            }
        }