circuitpython/py/builtinevex.c
Damien George df6567e634 Merge map.h into obj.h.
Pretty much everyone needs to include map.h, since it's such an integral
part of the Micro Python object implementation.  Thus, the definitions
are now in obj.h instead.  map.h is removed.
2014-03-30 13:54:02 +01:00

78 lines
2.3 KiB
C

#include <stdint.h>
#include "nlr.h"
#include "misc.h"
#include "mpconfig.h"
#include "qstr.h"
#include "lexer.h"
#include "lexerunix.h"
#include "parse.h"
#include "obj.h"
#include "parsehelper.h"
#include "compile.h"
#include "runtime0.h"
#include "runtime.h"
#include "builtin.h"
STATIC mp_obj_t parse_compile_execute(mp_obj_t o_in, mp_parse_input_kind_t parse_input_kind) {
uint str_len;
const char *str = mp_obj_str_get_data(o_in, &str_len);
// create the lexer
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_string_gt_, str, str_len, 0);
qstr source_name = mp_lexer_source_name(lex);
// parse the string
mp_parse_error_kind_t parse_error_kind;
mp_parse_node_t pn = mp_parse(lex, parse_input_kind, &parse_error_kind);
mp_lexer_free(lex);
if (pn == MP_PARSE_NODE_NULL) {
// parse error; raise exception
nlr_jump(mp_parse_make_exception(parse_error_kind));
}
// compile the string
mp_obj_t module_fun = mp_compile(pn, source_name, false);
mp_parse_node_free(pn);
if (module_fun == mp_const_none) {
// TODO handle compile error correctly
return mp_const_none;
}
// complied successfully, execute it
return mp_call_function_0(module_fun);
}
STATIC mp_obj_t mp_builtin_eval(mp_obj_t o_in) {
return parse_compile_execute(o_in, MP_PARSE_EVAL_INPUT);
}
MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_eval_obj, mp_builtin_eval);
STATIC mp_obj_t mp_builtin_exec(uint n_args, const mp_obj_t *args) {
// Unconditional getting/setting assumes that these operations
// are cheap, which is the case when this comment was written.
mp_map_t *old_globals = mp_globals_get();
mp_map_t *old_locals = mp_locals_get();
if (n_args > 1) {
mp_obj_t globals = args[1];
mp_obj_t locals;
if (n_args > 2) {
locals = args[2];
} else {
locals = globals;
}
mp_globals_set(mp_obj_dict_get_map(globals));
mp_locals_set(mp_obj_dict_get_map(locals));
}
mp_obj_t res = parse_compile_execute(args[0], MP_PARSE_FILE_INPUT);
// TODO if the above call throws an exception, then we never get to reset the globals/locals
mp_globals_set(old_globals);
mp_locals_set(old_locals);
return res;
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_exec_obj, 1, 3, mp_builtin_exec);