1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright © 2016 Keith Packard <keithp@keithp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include "ao_scheme.h"
static void ao_scheme_invalid_write(ao_poly p, bool write) {
printf("??? type %d poly 0x%04x ???", ao_scheme_poly_type (p), p);
(void) write;
ao_scheme_abort();
}
static void (*const ao_scheme_write_funcs[AO_SCHEME_NUM_TYPE]) (ao_poly p, bool write) = {
[AO_SCHEME_CONS] = ao_scheme_cons_write,
#ifdef AO_SCHEME_FEATURE_BIGINT
[AO_SCHEME_BIGINT] = ao_scheme_bigint_write,
#endif
[AO_SCHEME_INT] = ao_scheme_int_write,
[AO_SCHEME_ATOM] = ao_scheme_atom_write,
[AO_SCHEME_BUILTIN] = ao_scheme_builtin_write,
[AO_SCHEME_FRAME] = ao_scheme_frame_write,
[AO_SCHEME_FRAME_VALS] = ao_scheme_invalid_write,
[AO_SCHEME_LAMBDA] = ao_scheme_lambda_write,
[AO_SCHEME_STACK] = ao_scheme_stack_write,
[AO_SCHEME_BOOL] = ao_scheme_bool_write,
[AO_SCHEME_STRING] = ao_scheme_string_write,
#ifdef AO_SCHEME_FEATURE_FLOAT
[AO_SCHEME_FLOAT] = ao_scheme_float_write,
#endif
#ifdef AO_SCHEME_FEATURE_VECTOR
[AO_SCHEME_VECTOR] = ao_scheme_vector_write,
#endif
};
void (*ao_scheme_poly_write_func(ao_poly p))(ao_poly p, bool write)
{
uint8_t type = ao_scheme_poly_type(p);
if (type < AO_SCHEME_NUM_TYPE)
return ao_scheme_write_funcs[type];
return ao_scheme_invalid_write;
}
void *
ao_scheme_ref(ao_poly poly) {
if (poly == AO_SCHEME_NIL)
return NULL;
if (poly & AO_SCHEME_CONST)
return (void *) (ao_scheme_const + (poly & AO_SCHEME_REF_MASK) - 4);
return (void *) (ao_scheme_pool + (poly & AO_SCHEME_REF_MASK) - 4);
}
ao_poly
ao_scheme_poly(const void *addr, ao_poly type) {
const uint8_t *a = addr;
if (a == NULL)
return AO_SCHEME_NIL;
if (ao_scheme_is_const_addr(a))
return AO_SCHEME_CONST | (a - ao_scheme_const + 4) | type;
return (a - ao_scheme_pool + 4) | type;
}
|
