Ejemplo n.º 1
0
def get_report_env():
    w_module = ModuleDict()
    for w_name, w_cont in prelude_impl.iteritems():
        w_module.setitem(w_name, w_cont)
    return w_module
Ejemplo n.º 2
0
    def test_recur(self):
        maincode = makecode(
            [
                Op.INT,
                10,
                0,
                Op.GETGLOBAL,
                1,  # 'display-and-halt
                Op.GETGLOBAL,
                0,  # 'fibo
                Op.CONT,  # (fibo 10 display-and-halt)
            ]
        )
        print_and_halt = makecode([Op.LOAD, 0, Op.DUP, Op.PRINT, Op.NEWLINE, Op.HALT])
        fibo_entry = makecode(
            [
                Op.LOAD,
                0,
                Op.DUP,
                Op.INT,
                2,
                0,
                Op.LT,
                Op.BRANCHIFNOT,
                3,
                0,
                # base case
                Op.LOAD,
                1,
                Op.CONT,
                # recur case
                Op.INT,
                1,
                0,
                Op.ISUB,
                Op.BUILDCONT,
                1,
                0,  # 'fibo-k0, with upval[0] = n, upval[1] = k
                Op.GETGLOBAL,
                0,  # 'fibo
                Op.CONT,
            ]
        )
        fibo_k0 = makecode(
            [
                Op.GETUPVAL,
                0,
                Op.INT,
                2,
                0,
                Op.ISUB,
                Op.BUILDCONT,
                2,
                0,  # 'fibo-k1, with upval[0] = $Rv_0, upval[1] = k
                Op.GETGLOBAL,
                0,  # 'fibo
                Op.CONT,
            ]
        )
        fibo_k1 = makecode([Op.GETUPVAL, 0, Op.LOAD, 0, Op.IADD, Op.GETUPVAL, 1, Op.CONT])  # $Rv_0  # $Rv_1  # k
        fibo_sym = symbol("fibo")
        dah_sym = symbol("display-and-halt")
        const_w0 = [fibo_sym, dah_sym]
        const_w1 = [fibo_sym]
        proto_w = [None, None, None, None, None]
        w_module = ModuleDict()
        proto_w[0] = W_Proto(maincode, nb_args=0, nb_locals=0, upval_descr=[], const_w=const_w0, w_module=w_module)
        w_maincont = W_Cont(proto_w[0], upval_w=[])
        proto_w[1] = W_Proto(
            fibo_k0, nb_args=1, nb_locals=1, upval_descr=[chr(0), chr(1)], const_w=const_w1, w_module=w_module
        )
        proto_w[2] = W_Proto(
            fibo_k1, nb_args=1, nb_locals=1, upval_descr=[chr(0), chr(2)], const_w=const_w1, w_module=w_module
        )
        proto_w[3] = W_Proto(fibo_entry, nb_args=2, nb_locals=2, upval_descr=[], const_w=const_w1, w_module=w_module)
        w_fibocont = W_Cont(proto_w[3], upval_w=[])
        proto_w[4] = W_Proto(print_and_halt, nb_args=1, nb_locals=1, upval_descr=[], const_w=[], w_module=w_module)
        w_printcont = W_Cont(proto_w[4], upval_w=[])

        w_module.setitem(fibo_sym, w_fibocont)
        w_module.setitem(dah_sym, w_printcont)

        frame = Frame(w_maincont, proto_w)

        w_ret = frame.run()
        self.assertEquals(w_ret.to_int(), 55)
Ejemplo n.º 3
0
def get_report_env():
    w_module = ModuleDict()
    for w_name, w_cont in prelude_impl.iteritems():
        w_module.setitem(w_name, w_cont)
    return w_module