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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_OBJFUN_H
#define MICROPY_INCLUDED_PY_OBJFUN_H
#include "py/bc.h"
#include "py/obj.h"
typedef struct _mp_obj_fun_bc_t {
mp_obj_base_t base;
const mp_module_context_t *context; // context within which this function was defined
struct _mp_raw_code_t *const *child_table; // table of children
const byte *bytecode; // bytecode for the function
#if MICROPY_PY_SYS_SETTRACE
const struct _mp_raw_code_t *rc;
#endif
// the following extra_args array is allocated space to take (in order):
// - values of positional default args (if any)
// - a single slot for default kw args dict (if it has them)
mp_obj_t extra_args[];
} mp_obj_fun_bc_t;
typedef struct _mp_obj_fun_asm_t {
mp_obj_base_t base;
size_t n_args;
const void *fun_data; // GC must be able to trace this pointer
mp_uint_t type_sig;
} mp_obj_fun_asm_t;
mp_obj_t mp_obj_new_fun_bc(const mp_obj_t *def_args, const byte *code, const mp_module_context_t *cm, struct _mp_raw_code_t *const *raw_code_table);
void mp_obj_fun_bc_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest);
#if MICROPY_EMIT_NATIVE
static inline mp_obj_t mp_obj_new_fun_native(const mp_obj_t *def_args, const void *fun_data, const mp_module_context_t *mc, struct _mp_raw_code_t *const *child_table) {
mp_obj_fun_bc_t *o = (mp_obj_fun_bc_t *)MP_OBJ_TO_PTR(mp_obj_new_fun_bc(def_args, (const byte *)fun_data, mc, child_table));
o->base.type = &mp_type_fun_native;
return MP_OBJ_FROM_PTR(o);
}
static inline mp_obj_t mp_obj_new_fun_viper(const void *fun_data, const mp_module_context_t *mc, struct _mp_raw_code_t *const *child_table) {
mp_obj_fun_bc_t *o = mp_obj_malloc(mp_obj_fun_bc_t, &mp_type_fun_viper);
o->bytecode = (const byte *)fun_data;
o->context = mc;
o->child_table = child_table;
return MP_OBJ_FROM_PTR(o);
}
static inline const uint8_t *mp_obj_fun_native_get_prelude_ptr(const mp_obj_fun_bc_t *fun_native) {
// Obtain a pointer to the start of the function prelude, based on prelude_ptr_index.
uintptr_t prelude_ptr_index = ((uintptr_t *)fun_native->bytecode)[0];
const uint8_t *prelude_ptr;
if (prelude_ptr_index == 0) {
prelude_ptr = (const uint8_t *)fun_native->child_table;
} else {
prelude_ptr = (const uint8_t *)fun_native->child_table[prelude_ptr_index];
}
return prelude_ptr;
}
static inline void *mp_obj_fun_native_get_function_start(const mp_obj_fun_bc_t *fun_native) {
// Obtain a pointer to the start of the function executable machine code.
return MICROPY_MAKE_POINTER_CALLABLE((void *)(fun_native->bytecode + sizeof(uintptr_t)));
}
static inline void *mp_obj_fun_native_get_generator_start(const mp_obj_fun_bc_t *fun_native) {
// Obtain a pointer to the start of the generator executable machine code.
uintptr_t start_offset = ((uintptr_t *)fun_native->bytecode)[1];
return MICROPY_MAKE_POINTER_CALLABLE((void *)(fun_native->bytecode + start_offset));
}
static inline void *mp_obj_fun_native_get_generator_resume(const mp_obj_fun_bc_t *fun_native) {
// Obtain a pointer to the resume location of the generator executable machine code.
return MICROPY_MAKE_POINTER_CALLABLE((void *)&((uintptr_t *)fun_native->bytecode)[2]);
}
#endif
#if MICROPY_EMIT_INLINE_ASM
static inline mp_obj_t mp_obj_new_fun_asm(size_t n_args, const void *fun_data, mp_uint_t type_sig) {
mp_obj_fun_asm_t *o = (mp_obj_fun_asm_t *)mp_obj_malloc(mp_obj_fun_asm_t, &mp_type_fun_asm);
o->n_args = n_args;
o->fun_data = (const byte *)fun_data;
o->type_sig = type_sig;
return MP_OBJ_FROM_PTR(o);
}
#endif
#endif // MICROPY_INCLUDED_PY_OBJFUN_H
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