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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.
*/
#include <stdint.h>
#include "py/nlr.h"
#include "py/objfun.h"
#include "py/compile.h"
#include "py/runtime.h"
#include "py/builtin.h"
#if MICROPY_PY_BUILTINS_COMPILE
typedef struct _mp_obj_code_t {
mp_obj_base_t base;
mp_obj_t module_fun;
} mp_obj_code_t;
STATIC const mp_obj_type_t mp_type_code = {
{ &mp_type_type },
.name = MP_QSTR_code,
};
STATIC mp_obj_t code_execute(mp_obj_code_t *self, mp_obj_dict_t *globals, mp_obj_dict_t *locals) {
// save context and set new context
mp_obj_dict_t *old_globals = mp_globals_get();
mp_obj_dict_t *old_locals = mp_locals_get();
mp_globals_set(globals);
mp_locals_set(locals);
// a bit of a hack: fun_bc will re-set globals, so need to make sure it's
// the correct one
if (MP_OBJ_IS_TYPE(self->module_fun, &mp_type_fun_bc)) {
mp_obj_fun_bc_t *fun_bc = MP_OBJ_TO_PTR(self->module_fun);
fun_bc->globals = globals;
}
// execute code
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_obj_t ret = mp_call_function_0(self->module_fun);
nlr_pop();
mp_globals_set(old_globals);
mp_locals_set(old_locals);
return ret;
} else {
// exception; restore context and re-raise same exception
mp_globals_set(old_globals);
mp_locals_set(old_locals);
nlr_jump(nlr.ret_val);
}
}
STATIC mp_obj_t mp_builtin_compile(size_t n_args, const mp_obj_t *args) {
(void)n_args;
// get the source
size_t str_len;
const char *str = mp_obj_str_get_data(args[0], &str_len);
// get the filename
qstr filename = mp_obj_str_get_qstr(args[1]);
// create the lexer
mp_lexer_t *lex = mp_lexer_new_from_str_len(filename, str, str_len, 0);
// get the compile mode
qstr mode = mp_obj_str_get_qstr(args[2]);
mp_parse_input_kind_t parse_input_kind;
switch (mode) {
case MP_QSTR_single: parse_input_kind = MP_PARSE_SINGLE_INPUT; break;
case MP_QSTR_exec: parse_input_kind = MP_PARSE_FILE_INPUT; break;
case MP_QSTR_eval: parse_input_kind = MP_PARSE_EVAL_INPUT; break;
default:
mp_raise_ValueError("bad compile mode");
}
mp_obj_code_t *code = m_new_obj(mp_obj_code_t);
code->base.type = &mp_type_code;
code->module_fun = mp_parse_compile_execute(lex, parse_input_kind, NULL, NULL);
return MP_OBJ_FROM_PTR(code);
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_compile_obj, 3, 6, mp_builtin_compile);
#endif // MICROPY_PY_BUILTINS_COMPILE
#if MICROPY_PY_BUILTINS_EVAL_EXEC
STATIC mp_obj_t eval_exec_helper(size_t n_args, const mp_obj_t *args, mp_parse_input_kind_t parse_input_kind) {
// work out the context
mp_obj_dict_t *globals = mp_globals_get();
mp_obj_dict_t *locals = mp_locals_get();
for (size_t i = 1; i < 3 && i < n_args; ++i) {
if (args[i] != mp_const_none) {
if (!MP_OBJ_IS_TYPE(args[i], &mp_type_dict)) {
mp_raise_TypeError(NULL);
}
locals = MP_OBJ_TO_PTR(args[i]);
if (i == 1) {
globals = locals;
}
}
}
#if MICROPY_PY_BUILTINS_COMPILE
if (MP_OBJ_IS_TYPE(args[0], &mp_type_code)) {
return code_execute(MP_OBJ_TO_PTR(args[0]), globals, locals);
}
#endif
size_t str_len;
const char *str = mp_obj_str_get_data(args[0], &str_len);
// create the lexer
// MP_PARSE_SINGLE_INPUT is used to indicate a file input
mp_lexer_t *lex;
if (MICROPY_PY_BUILTINS_EXECFILE && parse_input_kind == MP_PARSE_SINGLE_INPUT) {
lex = mp_lexer_new_from_file(str);
parse_input_kind = MP_PARSE_FILE_INPUT;
} else {
lex = mp_lexer_new_from_str_len(MP_QSTR__lt_string_gt_, str, str_len, 0);
}
return mp_parse_compile_execute(lex, parse_input_kind, globals, locals);
}
STATIC mp_obj_t mp_builtin_eval(size_t n_args, const mp_obj_t *args) {
return eval_exec_helper(n_args, args, MP_PARSE_EVAL_INPUT);
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_eval_obj, 1, 3, mp_builtin_eval);
STATIC mp_obj_t mp_builtin_exec(size_t n_args, const mp_obj_t *args) {
return eval_exec_helper(n_args, args, MP_PARSE_FILE_INPUT);
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_exec_obj, 1, 3, mp_builtin_exec);
#endif // MICROPY_PY_BUILTINS_EVAL_EXEC
#if MICROPY_PY_BUILTINS_EXECFILE
STATIC mp_obj_t mp_builtin_execfile(size_t n_args, const mp_obj_t *args) {
// MP_PARSE_SINGLE_INPUT is used to indicate a file input
return eval_exec_helper(n_args, args, MP_PARSE_SINGLE_INPUT);
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_execfile_obj, 1, 3, mp_builtin_execfile);
#endif
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