From aa76e8ac648cc6c483c7e72dbf4016b0c865d1e9 Mon Sep 17 00:00:00 2001 From: Laurens Valk Date: Fri, 19 Aug 2022 16:40:28 +0200 Subject: [PATCH] py/builtinimport: Allow overriding of mp_builtin___import__. This allows ports to override mp_builtin___import__. This can be useful in MicroPython applications where MICROPY_ENABLE_EXTERNAL_IMPORT has to be disabled due to its impact on build size (2% to 2.5% of the minimal port). By overriding the otherwise very minimal mp_builtin___import__, ports can still allow limited forms of application-specific imports. Signed-off-by: Laurens Valk --- py/builtin.h | 6 ++++++ py/builtinimport.c | 4 ++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/py/builtin.h b/py/builtin.h index fb11627841227..7232142b77bea 100644 --- a/py/builtin.h +++ b/py/builtin.h @@ -64,7 +64,13 @@ MP_DECLARE_CONST_FUN_OBJ_KW(mp_builtin_open_obj); #endif +// A port can provide its own import handler by defining mp_builtin___import__. +#ifndef mp_builtin___import__ +#define mp_builtin___import__ mp_builtin___import___default +#endif mp_obj_t mp_builtin___import__(size_t n_args, const mp_obj_t *args); +mp_obj_t mp_builtin___import___default(size_t n_args, const mp_obj_t *args); + mp_obj_t mp_micropython_mem_info(size_t n_args, const mp_obj_t *args); MP_DECLARE_CONST_FUN_OBJ_VAR(mp_builtin___build_class___obj); diff --git a/py/builtinimport.c b/py/builtinimport.c index 36cdac07675e3..a578d4ad2732e 100644 --- a/py/builtinimport.c +++ b/py/builtinimport.c @@ -467,7 +467,7 @@ STATIC mp_obj_t process_import_at_level(qstr full_mod_name, qstr level_mod_name, return module_obj; } -mp_obj_t mp_builtin___import__(size_t n_args, const mp_obj_t *args) { +mp_obj_t mp_builtin___import___default(size_t n_args, const mp_obj_t *args) { #if DEBUG_PRINT DEBUG_printf("__import__:\n"); for (size_t i = 0; i < n_args; i++) { @@ -566,7 +566,7 @@ mp_obj_t mp_builtin___import__(size_t n_args, const mp_obj_t *args) { #else // MICROPY_ENABLE_EXTERNAL_IMPORT -mp_obj_t mp_builtin___import__(size_t n_args, const mp_obj_t *args) { +mp_obj_t mp_builtin___import___default(size_t n_args, const mp_obj_t *args) { // Check that it's not a relative import if (n_args >= 5 && MP_OBJ_SMALL_INT_VALUE(args[4]) != 0) { mp_raise_NotImplementedError(MP_ERROR_TEXT("relative import")); pFad - Phonifier reborn

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