Exemple #1
0
 public void TestUnary()
 {
     var mult = new Arith(new Token('*'), new Constant(42), new Constant(3));
     var u = new Unary(new Token('-'), mult);
     Assert.AreEqual("- 42 * 3", u.ToString());
     Assert.IsTrue(u.Gen() is Expr);
 }
Exemple #2
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        public void TestArith()
        {
            var add = new Arith(new Token('+'), new Constant(42), new Constant(99));
            Assert.AreEqual("42 + 99", add.ToString());
            Assert.IsTrue(add.Reduce() is Sara.Temp);

            var mult = new Arith(new Token('*'), new Constant(142), new Constant(0));
            var poly = new Arith(new Token('-'), add, mult);
            Assert.AreEqual("42 + 99 - 142 * 0", poly.ToString());
        }
Exemple #3
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        public Expr Term()
        {
            Expr expr = this.Unary();

            while (_look.TagValue == '*' || _look.TagValue == '/')
            {
                Token tok = _look;
                this.Move();
                expr = new Arith(tok, expr, this.Unary());
            }
            return(expr);
        }
Exemple #4
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        public Expr Expr()
        {
            Expr expr = this.Term();

            while (_look.TagValue == '+' || _look.TagValue == '-')
            {
                Token tok = _look;
                this.Move();
                expr = new Arith(tok, expr, this.Term());
            }
            return(expr);
        }
Exemple #5
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 #6
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 public Expr Term()
 {
     Expr expr = this.Unary();
     while(_look.TagValue == '*' || _look.TagValue == '/')
     {
         Token tok = _look;
         this.Move();
         expr = new Arith(tok, expr, this.Unary());
     }
     return expr;
 }
Exemple #7
0
 public Expr Expr()
 {
     Expr expr = this.Term();
     while(_look.TagValue == '+' || _look.TagValue == '-')
     {
         Token tok = _look;
         this.Move();
         expr = new Arith(tok, expr, this.Term());
     }
     return expr;
 }