101 lines
3.5 KiB
C
101 lines
3.5 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* SPDX-FileCopyrightText: 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_SCOPE_H
|
|
#define MICROPY_INCLUDED_PY_SCOPE_H
|
|
|
|
#include "py/parse.h"
|
|
#include "py/emitglue.h"
|
|
|
|
enum {
|
|
ID_INFO_KIND_UNDECIDED,
|
|
ID_INFO_KIND_GLOBAL_IMPLICIT,
|
|
ID_INFO_KIND_GLOBAL_EXPLICIT,
|
|
ID_INFO_KIND_LOCAL, // in a function f, written and only referenced by f
|
|
ID_INFO_KIND_CELL, // in a function f, read/written by children of f
|
|
ID_INFO_KIND_FREE, // in a function f, belongs to the parent of f
|
|
};
|
|
|
|
enum {
|
|
ID_FLAG_IS_PARAM = 0x01,
|
|
ID_FLAG_IS_STAR_PARAM = 0x02,
|
|
ID_FLAG_IS_DBL_STAR_PARAM = 0x04,
|
|
ID_FLAG_VIPER_TYPE_POS = 4,
|
|
};
|
|
|
|
typedef struct _id_info_t {
|
|
uint8_t kind;
|
|
uint8_t flags;
|
|
// when it's an ID_INFO_KIND_LOCAL this is the unique number of the local
|
|
// whet it's an ID_INFO_KIND_CELL/FREE this is the unique number of the closed over variable
|
|
uint16_t local_num;
|
|
qstr qst;
|
|
} id_info_t;
|
|
|
|
#define SCOPE_IS_FUNC_LIKE(s) ((s) >= SCOPE_LAMBDA)
|
|
#define SCOPE_IS_COMP_LIKE(s) (SCOPE_LIST_COMP <= (s) && (s) <= SCOPE_GEN_EXPR)
|
|
|
|
// scope is a "block" in Python parlance
|
|
typedef enum {
|
|
SCOPE_MODULE,
|
|
SCOPE_CLASS,
|
|
SCOPE_LAMBDA,
|
|
SCOPE_LIST_COMP,
|
|
SCOPE_DICT_COMP,
|
|
SCOPE_SET_COMP,
|
|
SCOPE_GEN_EXPR,
|
|
SCOPE_FUNCTION,
|
|
} scope_kind_t;
|
|
|
|
typedef struct _scope_t {
|
|
scope_kind_t kind;
|
|
struct _scope_t *parent;
|
|
struct _scope_t *next;
|
|
mp_parse_node_t pn;
|
|
mp_raw_code_t *raw_code;
|
|
uint16_t source_file; // a qstr
|
|
uint16_t simple_name; // a qstr
|
|
uint16_t scope_flags; // see runtime0.h
|
|
uint16_t emit_options; // see emitglue.h
|
|
uint16_t num_pos_args;
|
|
uint16_t num_kwonly_args;
|
|
uint16_t num_def_pos_args;
|
|
uint16_t num_locals;
|
|
uint16_t stack_size; // maximum size of the locals stack
|
|
uint16_t exc_stack_size; // maximum size of the exception stack
|
|
uint16_t id_info_alloc;
|
|
uint16_t id_info_len;
|
|
id_info_t *id_info;
|
|
} scope_t;
|
|
|
|
scope_t *scope_new(scope_kind_t kind, mp_parse_node_t pn, qstr source_file, mp_uint_t emit_options);
|
|
void scope_free(scope_t *scope);
|
|
id_info_t *scope_find_or_add_id(scope_t *scope, qstr qstr, scope_kind_t kind);
|
|
id_info_t *scope_find(scope_t *scope, qstr qstr);
|
|
id_info_t *scope_find_global(scope_t *scope, qstr qstr);
|
|
void scope_check_to_close_over(scope_t *scope, id_info_t *id);
|
|
|
|
#endif // MICROPY_INCLUDED_PY_SCOPE_H
|