nativeglue.c 4.4 KB
Newer Older
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
/*
 * This file is part of the Micro Python project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 Damien P. George
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include <stdio.h>
#include <string.h>
#include <assert.h>

31
32
33
34
#include "py/nlr.h"
#include "py/runtime0.h"
#include "py/runtime.h"
#include "py/emitglue.h"
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49

#if MICROPY_EMIT_NATIVE

#if 0 // print debugging info
#define DEBUG_printf DEBUG_printf
#else // don't print debugging info
#define DEBUG_printf(...) (void)0
#endif

// convert a Micro Python object to a valid native value based on type
mp_uint_t mp_convert_obj_to_native(mp_obj_t obj, mp_uint_t type) {
    DEBUG_printf("mp_convert_obj_to_native(%p, " UINT_FMT ")\n", obj, type);
    switch (type & 3) {
        case MP_NATIVE_TYPE_OBJ: return (mp_uint_t)obj;
        case MP_NATIVE_TYPE_BOOL:
50
51
52
53
54
55
56
57
58
59
        case MP_NATIVE_TYPE_INT: return mp_obj_get_int(obj);
        case MP_NATIVE_TYPE_UINT: {
            mp_buffer_info_t bufinfo;
            if (mp_get_buffer(obj, &bufinfo, MP_BUFFER_RW)) {
                return (mp_uint_t)bufinfo.buf;
            } else {
                // TODO should be mp_obj_get_uint_truncated or something
                return mp_obj_get_int(obj);
            }
        }
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
        default: assert(0); return 0;
    }
}

// convert a native value to a Micro Python object based on type
mp_obj_t mp_convert_native_to_obj(mp_uint_t val, mp_uint_t type) {
    DEBUG_printf("mp_convert_native_to_obj(" UINT_FMT ", " UINT_FMT ")\n", val, type);
    switch (type & 3) {
        case MP_NATIVE_TYPE_OBJ: return (mp_obj_t)val;
        case MP_NATIVE_TYPE_BOOL: return MP_BOOL(val);
        case MP_NATIVE_TYPE_INT: return mp_obj_new_int(val);
        case MP_NATIVE_TYPE_UINT: return mp_obj_new_int_from_uint(val);
        default: assert(0); return mp_const_none;
    }
}

// wrapper that accepts n_args and n_kw in one argument
// (native emitter can only pass at most 3 arguments to a function)
78
mp_obj_t mp_native_call_function_n_kw(mp_obj_t fun_in, mp_uint_t n_args_kw, const mp_obj_t *args) {
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
    return mp_call_function_n_kw(fun_in, n_args_kw & 0xff, (n_args_kw >> 8) & 0xff, args);
}

// wrapper that makes raise obj and raises it
NORETURN void mp_native_raise(mp_obj_t o) {
    nlr_raise(mp_make_raise_obj(o));
}

// these must correspond to the respective enum in runtime0.h
void *const mp_fun_table[MP_F_NUMBER_OF] = {
    mp_convert_obj_to_native,
    mp_convert_native_to_obj,
    mp_load_const_int,
    mp_load_const_dec,
    mp_load_const_str,
    mp_load_const_bytes,
    mp_load_name,
    mp_load_global,
    mp_load_build_class,
    mp_load_attr,
    mp_load_method,
    mp_store_name,
    mp_store_global,
    mp_store_attr,
    mp_obj_subscr,
    mp_obj_is_true,
    mp_unary_op,
    mp_binary_op,
    mp_obj_new_tuple,
    mp_obj_new_list,
    mp_obj_list_append,
    mp_obj_new_dict,
    mp_obj_dict_store,
#if MICROPY_PY_BUILTINS_SET
    mp_obj_new_set,
    mp_obj_set_store,
#endif
    mp_make_function_from_raw_code,
    mp_native_call_function_n_kw,
    mp_call_method_n_kw,
    mp_getiter,
    mp_iternext,
    nlr_push,
    nlr_pop,
    mp_native_raise,
    mp_import_name,
    mp_import_from,
    mp_import_all,
#if MICROPY_PY_BUILTINS_SLICE
    mp_obj_new_slice,
#endif
    mp_unpack_sequence,
    mp_unpack_ex,
132
133
    mp_delete_name,
    mp_delete_global,
134
135
136
137
138
139
140
141
142
};

/*
void mp_f_vector(mp_fun_kind_t fun_kind) {
    (mp_f_table[fun_kind])();
}
*/

#endif // MICROPY_EMIT_NATIVE