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py: Add execfile function (from Python 2); enable in stmhal port. 

Adds just 60 bytes to stmhal binary.  Addresses issue #362.
This commit is contained in:
Damien George 2014-12-19 13:36:17 +00:00
parent 8427c5b76c
commit 2a3e2b9033
6 changed files with 29 additions and 1 deletions
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1
py/builtin.h
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@ -41,6 +41,7 @@ MP_DECLARE_CONST_FUN_OBJ(mp_builtin_dir_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_divmod_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_eval_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_exec_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_execfile_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_getattr_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_globals_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_hasattr_obj);

17
py/builtinevex.c
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@ -137,7 +137,14 @@ STATIC mp_obj_t eval_exec_helper(mp_uint_t n_args, const mp_obj_t *args, mp_pars
const char *str = mp_obj_str_get_data(args[0], &str_len);
// create the lexer
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_string_gt_, str, str_len, 0);
// 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);
}
@ -151,3 +158,11 @@ STATIC mp_obj_t mp_builtin_exec(mp_uint_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);
#if MICROPY_PY_BUILTINS_EXECFILE
STATIC mp_obj_t mp_builtin_execfile(mp_uint_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

3
py/modbuiltins.c
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@ -627,6 +627,9 @@ STATIC const mp_map_elem_t mp_module_builtins_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_divmod), (mp_obj_t)&mp_builtin_divmod_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_eval), (mp_obj_t)&mp_builtin_eval_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_exec), (mp_obj_t)&mp_builtin_exec_obj },
#if MICROPY_PY_BUILTINS_EXECFILE
{ MP_OBJ_NEW_QSTR(MP_QSTR_execfile), (mp_obj_t)&mp_builtin_execfile_obj },
#endif
{ MP_OBJ_NEW_QSTR(MP_QSTR_getattr), (mp_obj_t)&mp_builtin_getattr_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_globals), (mp_obj_t)&mp_builtin_globals_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_hasattr), (mp_obj_t)&mp_builtin_hasattr_obj },

5
py/mpconfig.h
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@ -340,6 +340,11 @@ typedef double mp_float_t;
#define MICROPY_PY_BUILTINS_COMPILE (0)
#endif
// Whether to support the Python 2 execfile function
#ifndef MICROPY_PY_BUILTINS_EXECFILE
#define MICROPY_PY_BUILTINS_EXECFILE (0)
#endif
// Whether to set __file__ for imported modules
#ifndef MICROPY_PY___FILE__
#define MICROPY_PY___FILE__ (1)

3
py/qstrdefs.h
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@ -167,6 +167,9 @@ Q(divmod)
Q(enumerate)
Q(eval)
Q(exec)
#if MICROPY_PY_BUILTINS_EXECFILE
Q(execfile)
#endif
Q(filter)
#if MICROPY_PY_BUILTINS_FLOAT
Q(float)

1
stmhal/mpconfigport.h
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@ -54,6 +54,7 @@
#define MICROPY_PY_BUILTINS_STR_UNICODE (1)
#define MICROPY_PY_BUILTINS_MEMORYVIEW (1)
#define MICROPY_PY_BUILTINS_FROZENSET (1)
#define MICROPY_PY_BUILTINS_EXECFILE (1)
#define MICROPY_PY_SYS_EXIT (1)
#define MICROPY_PY_SYS_STDFILES (1)
#define MICROPY_PY_CMATH (1)