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added some primitive functions

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hyung-hwan
2016-10-25 13:44:38 +00:00
parent 15b995801d
commit ccca08c725
5 changed files with 129 additions and 15 deletions
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90
lib/prim.c
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@ -163,9 +163,97 @@ static int prim_log (hcl_t* hcl, hcl_ooi_t nargs)
/* ------------------------------------------------------------------------- */
static int oop_to_ooi (hcl_t* hcl, hcl_oop_t iv, hcl_ooi_t* ov)
{
if (HCL_OOP_IS_SMOOI(iv))
{
*ov = HCL_OOP_TO_SMOOI(iv);
return 0;
}
else if (HCL_IS_INTEGER(hcl, iv))
{
*ov = (hcl_ooi_t)((hcl_oop_word_t)iv)->slot[0];
return 0;
}
else
{
/* TODO: set error number or something...to indicate primitive failure... */
return -1;
}
}
static int prim_plus (hcl_t* hcl, hcl_ooi_t nargs)
{
hcl_ooi_t x = 0;
hcl_oow_t i;
hcl_oop_t arg, ret;
for (i = 0; i < nargs; i++)
{
hcl_ooi_t v;
arg = HCL_STACK_GETARG(hcl, nargs, i);
if (oop_to_ooi(hcl, arg, &v) <= -1) return -1;
x += v;
}
ret = hcl_makeinteger (hcl, x);
if (!ret) return -1;
HCL_STACK_SETRET (hcl, nargs, ret);
return 0;
}
static int prim_minus (hcl_t* hcl, hcl_ooi_t nargs)
{
hcl_ooi_t x = 0;
hcl_oow_t i;
hcl_oop_t arg, ret;
if (nargs > 0)
{
arg = HCL_STACK_GETARG(hcl, nargs, 0);
if (oop_to_ooi(hcl, arg, &x) <= -1) return -1;
for (i = 1; i < nargs; i++)
{
hcl_ooi_t v;
arg = HCL_STACK_GETARG(hcl, nargs, i);
if (oop_to_ooi(hcl, arg, &v) <= -1) return -1;
x -= v;
}
}
ret = hcl_makeinteger (hcl, x);
if (!ret) return -1;
HCL_STACK_SETRET (hcl, nargs, ret);
return 0;
}
/* ------------------------------------------------------------------------- */
static prim_t builtin_prims[] =
{
{ 0, HCL_TYPE_MAX(hcl_oow_t), prim_log, 3, { 'l','o','g' } }
{ 0, HCL_TYPE_MAX(hcl_oow_t), prim_log, 3, { 'l','o','g' } },
/*
{ 2, 2, prim_gt, 1, { '>' } },
{ 2, 2, prim_ge, 2, { '>','=' } },
{ 2, 2, prim_lt, 1, { '<' } },
{ 2, 2, prim_le, 2, { '<','=' } },
{ 2, 2, prim_eq, 1, { '=' } },
{ 2, 2, prim_ne, 2, { '/','=' } },
{ 2, 2, prim_eql, 3, { 'e','q','l' } },
{ 2, 2, prim_max, 3, { 'm','a','x' } },
{ 2, 2, prim_min, 3, { 'm','i','n' } },
{ 2, 2, prim_and, 3, { 'a','n','d' } },
{ 2, 2, prim_or, 2, { 'o','r' } },
{ 1, 1, prim_not, 3, { 'n','o','t' } }, */
{ 0, HCL_TYPE_MAX(hcl_oow_t), prim_plus, 1, { '+' } },
{ 0, HCL_TYPE_MAX(hcl_oow_t), prim_minus, 1, { '-' } }
};