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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 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.
*/
// This code glues the code emitters to the runtime.
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "py/emitglue.h"
#include "py/runtime0.h"
#include "py/bc.h"
#if MICROPY_DEBUG_VERBOSE // print debugging info
#define DEBUG_PRINT (1)
#define WRITE_CODE (1)
#define DEBUG_printf DEBUG_printf
#define DEBUG_OP_printf(...) DEBUG_printf(__VA_ARGS__)
#else // don't print debugging info
#define DEBUG_printf(...) (void)0
#define DEBUG_OP_printf(...) (void)0
#endif
#if MICROPY_DEBUG_PRINTERS
mp_uint_t mp_verbose_flag = 0;
#endif
mp_raw_code_t *mp_emit_glue_new_raw_code(void) {
mp_raw_code_t *rc = m_new0(mp_raw_code_t, 1);
rc->kind = MP_CODE_RESERVED;
return rc;
}
void mp_emit_glue_assign_bytecode(mp_raw_code_t *rc, const byte *code,
#if MICROPY_PERSISTENT_CODE_SAVE || MICROPY_DEBUG_PRINTERS
size_t len,
#endif
const mp_uint_t *const_table,
#if MICROPY_PERSISTENT_CODE_SAVE
uint16_t n_obj, uint16_t n_raw_code,
#endif
mp_uint_t scope_flags) {
rc->kind = MP_CODE_BYTECODE;
rc->scope_flags = scope_flags;
rc->data.u_byte.bytecode = code;
rc->data.u_byte.const_table = const_table;
#if MICROPY_PERSISTENT_CODE_SAVE
rc->data.u_byte.bc_len = len;
rc->data.u_byte.n_obj = n_obj;
rc->data.u_byte.n_raw_code = n_raw_code;
#endif
#ifdef DEBUG_PRINT
DEBUG_printf("assign byte code: code=%p len=" UINT_FMT " flags=%x\n", code, len, (uint)scope_flags);
#endif
#if MICROPY_DEBUG_PRINTERS
if (mp_verbose_flag >= 2) {
mp_bytecode_print(rc, code, len, const_table);
}
#endif
}
#if MICROPY_EMIT_NATIVE || MICROPY_EMIT_INLINE_ASM
void mp_emit_glue_assign_native(mp_raw_code_t *rc, mp_raw_code_kind_t kind, void *fun_data, mp_uint_t fun_len, const mp_uint_t *const_table, mp_uint_t n_pos_args, mp_uint_t scope_flags, mp_uint_t type_sig) {
assert(kind == MP_CODE_NATIVE_PY || kind == MP_CODE_NATIVE_VIPER || kind == MP_CODE_NATIVE_ASM);
rc->kind = kind;
rc->scope_flags = scope_flags;
rc->n_pos_args = n_pos_args;
rc->data.u_native.fun_data = fun_data;
rc->data.u_native.const_table = const_table;
rc->data.u_native.type_sig = type_sig;
#ifdef DEBUG_PRINT
DEBUG_printf("assign native: kind=%d fun=%p len=" UINT_FMT " n_pos_args=" UINT_FMT " flags=%x\n", kind, fun_data, fun_len, n_pos_args, (uint)scope_flags);
for (mp_uint_t i = 0; i < fun_len; i++) {
if (i > 0 && i % 16 == 0) {
DEBUG_printf("\n");
}
DEBUG_printf(" %02x", ((byte*)fun_data)[i]);
}
DEBUG_printf("\n");
#ifdef WRITE_CODE
FILE *fp_write_code = fopen("out-code", "wb");
fwrite(fun_data, fun_len, 1, fp_write_code);
fclose(fp_write_code);
#endif
#else
(void)fun_len;
#endif
}
#endif
mp_obj_t mp_make_function_from_raw_code(const mp_raw_code_t *rc, mp_obj_t def_args, mp_obj_t def_kw_args) {
DEBUG_OP_printf("make_function_from_raw_code %p\n", rc);
assert(rc != NULL);
// def_args must be MP_OBJ_NULL or a tuple
assert(def_args == MP_OBJ_NULL || MP_OBJ_IS_TYPE(def_args, &mp_type_tuple));
// def_kw_args must be MP_OBJ_NULL or a dict
assert(def_kw_args == MP_OBJ_NULL || MP_OBJ_IS_TYPE(def_kw_args, &mp_type_dict));
// make the function, depending on the raw code kind
mp_obj_t fun;
switch (rc->kind) {
#if MICROPY_EMIT_NATIVE
case MP_CODE_NATIVE_PY:
fun = mp_obj_new_fun_native(def_args, def_kw_args, rc->data.u_native.fun_data, rc->data.u_native.const_table);
break;
case MP_CODE_NATIVE_VIPER:
fun = mp_obj_new_fun_viper(rc->n_pos_args, rc->data.u_native.fun_data, rc->data.u_native.type_sig);
break;
#endif
#if MICROPY_EMIT_INLINE_ASM
case MP_CODE_NATIVE_ASM:
fun = mp_obj_new_fun_asm(rc->n_pos_args, rc->data.u_native.fun_data, rc->data.u_native.type_sig);
break;
#endif
default:
// rc->kind should always be set and BYTECODE is the only remaining case
assert(rc->kind == MP_CODE_BYTECODE);
fun = mp_obj_new_fun_bc(def_args, def_kw_args, rc->data.u_byte.bytecode, rc->data.u_byte.const_table);
break;
}
// check for generator functions and if so wrap in generator object
if ((rc->scope_flags & MP_SCOPE_FLAG_GENERATOR) != 0) {
fun = mp_obj_new_gen_wrap(fun);
}
return fun;
}
mp_obj_t mp_make_closure_from_raw_code(const mp_raw_code_t *rc, mp_uint_t n_closed_over, const mp_obj_t *args) {
DEBUG_OP_printf("make_closure_from_raw_code %p " UINT_FMT " %p\n", rc, n_closed_over, args);
// make function object
mp_obj_t ffun;
if (n_closed_over & 0x100) {
// default positional and keyword args given
ffun = mp_make_function_from_raw_code(rc, args[0], args[1]);
} else {
// default positional and keyword args not given
ffun = mp_make_function_from_raw_code(rc, MP_OBJ_NULL, MP_OBJ_NULL);
}
// wrap function in closure object
return mp_obj_new_closure(ffun, n_closed_over & 0xff, args + ((n_closed_over >> 7) & 2));
}
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