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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/objcode.h"
#include "py/objfun.h"
#include "py/compile.h"
#include "py/runtime.h"
#include "py/builtin.h"
#if MICROPY_PY_BUILTINS_COMPILE
static mp_obj_t code_execute(mp_obj_code_t *self, mp_obj_dict_t *globals, mp_obj_dict_t *locals) {
// save context
nlr_jump_callback_node_globals_locals_t ctx;
ctx.globals = mp_globals_get();
ctx.locals = mp_locals_get();
// set new context
mp_globals_set(globals);
mp_locals_set(locals);
// set exception handler to restore context if an exception is raised
nlr_push_jump_callback(&ctx.callback, mp_globals_locals_set_from_nlr_jump_callback);
#if MICROPY_PY_BUILTINS_CODE >= MICROPY_PY_BUILTINS_CODE_BASIC
mp_module_context_t *module_context = m_new_obj(mp_module_context_t);
module_context->module.base.type = &mp_type_module;
module_context->module.globals = globals;
module_context->constants = *mp_code_get_constants(self);
mp_obj_t module_fun = mp_make_function_from_proto_fun(mp_code_get_proto_fun(self), module_context, NULL);
#else
// The call to mp_parse_compile_execute() in mp_builtin_compile() below passes
// NULL for the globals, so repopulate that entry now with the correct globals.
mp_obj_t module_fun = self->module_fun;
if (mp_obj_is_type(self->module_fun, &mp_type_fun_bc)
#if MICROPY_EMIT_NATIVE
|| mp_obj_is_type(self->module_fun, &mp_type_fun_native)
#endif
) {
mp_obj_fun_bc_t *fun_bc = MP_OBJ_TO_PTR(module_fun);
((mp_module_context_t *)fun_bc->context)->module.globals = globals;
}
#endif
// execute code
mp_obj_t ret = mp_call_function_0(module_fun);
// deregister exception handler and restore context
nlr_pop_jump_callback(true);
// return value
return ret;
}
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(MP_ERROR_TEXT("bad compile mode"));
}
#if MICROPY_PY_BUILTINS_CODE >= MICROPY_PY_BUILTINS_CODE_BASIC
mp_parse_tree_t parse_tree = mp_parse(lex, parse_input_kind);
mp_module_context_t ctx;
ctx.module.globals = NULL;
mp_compiled_module_t cm;
cm.context = &ctx;
mp_compile_to_raw_code(&parse_tree, lex->source_name, parse_input_kind == MP_PARSE_SINGLE_INPUT, &cm);
#if MICROPY_PY_BUILTINS_CODE >= MICROPY_PY_BUILTINS_CODE_FULL
mp_module_context_t *ctx_ptr = m_new_obj(mp_module_context_t);
*ctx_ptr = ctx;
return mp_obj_new_code(ctx_ptr, cm.rc, true);
#else
return mp_obj_new_code(ctx.constants, cm.rc);
#endif
#else
mp_obj_t module_fun = mp_parse_compile_execute(lex, parse_input_kind, NULL, NULL);
return mp_obj_new_code(module_fun);
#endif
}
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
// 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(mp_obj_str_get_qstr(args[0]));
parse_input_kind = MP_PARSE_FILE_INPUT;
} else {
// Extract the source code.
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(args[0], &bufinfo, MP_BUFFER_READ);
lex = mp_lexer_new_from_str_len(MP_QSTR__lt_string_gt_, bufinfo.buf, bufinfo.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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