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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.
*/
#ifndef MICROPY_INCLUDED_PY_EMITGLUE_H
#define MICROPY_INCLUDED_PY_EMITGLUE_H
#include "py/obj.h"
#include "py/bc.h"
// These variables and functions glue the code emitters to the runtime.
// These must fit in 8 bits; see scope.h
enum {
MP_EMIT_OPT_NONE,
MP_EMIT_OPT_BYTECODE,
MP_EMIT_OPT_NATIVE_PYTHON,
MP_EMIT_OPT_VIPER,
MP_EMIT_OPT_ASM,
};
typedef enum {
MP_CODE_UNUSED,
MP_CODE_RESERVED,
MP_CODE_BYTECODE,
MP_CODE_NATIVE_PY,
MP_CODE_NATIVE_VIPER,
MP_CODE_NATIVE_ASM,
} mp_raw_code_kind_t;
// compiled bytecode: instance in RAM, referenced by outer scope, usually freed after first (and only) use
// mpy file: instance in RAM, created when .mpy file is loaded (same comments as above)
// frozen: instance in ROM
typedef struct _mp_raw_code_t {
mp_uint_t kind : 3; // of type mp_raw_code_kind_t
mp_uint_t scope_flags : 7;
mp_uint_t n_pos_args : 11;
const void *fun_data;
#if MICROPY_PERSISTENT_CODE_SAVE || MICROPY_DEBUG_PRINTERS
size_t fun_data_len; // so mp_raw_code_save and mp_bytecode_print work
#endif
struct _mp_raw_code_t **children;
#if MICROPY_PERSISTENT_CODE_SAVE
size_t n_children;
#if MICROPY_PY_SYS_SETTRACE
mp_bytecode_prelude_t prelude;
// line_of_definition is a Python source line where the raw_code was
// created e.g. MP_BC_MAKE_FUNCTION. This is different from lineno info
// stored in prelude, which provides line number for first statement of
// a function. Required to properly implement "call" trace event.
mp_uint_t line_of_definition;
#endif
#if MICROPY_EMIT_MACHINE_CODE
uint16_t prelude_offset;
#endif
#endif
#if MICROPY_EMIT_MACHINE_CODE
mp_uint_t type_sig; // for viper, compressed as 2-bit types; ret is MSB, then arg0, arg1, etc
#endif
} mp_raw_code_t;
mp_raw_code_t *mp_emit_glue_new_raw_code(void);
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
mp_raw_code_t **children,
#if MICROPY_PERSISTENT_CODE_SAVE
size_t n_children,
#endif
mp_uint_t scope_flags);
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,
mp_raw_code_t **children,
#if MICROPY_PERSISTENT_CODE_SAVE
size_t n_children,
uint16_t prelude_offset,
#endif
mp_uint_t scope_flags, mp_uint_t n_pos_args, mp_uint_t type_sig);
mp_obj_t mp_make_function_from_raw_code(const mp_raw_code_t *rc, const mp_module_context_t *context, const mp_obj_t *def_args);
mp_obj_t mp_make_closure_from_raw_code(const mp_raw_code_t *rc, const mp_module_context_t *context, mp_uint_t n_closed_over, const mp_obj_t *args);
#endif // MICROPY_INCLUDED_PY_EMITGLUE_H
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