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-rw-r--r--py/builtinhelp.c4
-rw-r--r--py/builtinimport.c27
-rw-r--r--py/mpconfig.h5
-rw-r--r--py/objmodule.c26
-rw-r--r--py/objmodule.h4
5 files changed, 32 insertions, 34 deletions
diff --git a/py/builtinhelp.c b/py/builtinhelp.c
index a7fede00ac..8f162d8858 100644
--- a/py/builtinhelp.c
+++ b/py/builtinhelp.c
@@ -80,10 +80,6 @@ STATIC void mp_help_print_modules(void) {
mp_help_add_from_map(list, &mp_builtin_module_map);
- #if MICROPY_MODULE_WEAK_LINKS
- mp_help_add_from_map(list, &mp_builtin_module_weak_links_map);
- #endif
-
#if MICROPY_MODULE_FROZEN_STR
extern const char mp_frozen_str_names[];
mp_help_add_from_names(list, mp_frozen_str_names);
diff --git a/py/builtinimport.c b/py/builtinimport.c
index 008a21dcff..b9f6c2ab2d 100644
--- a/py/builtinimport.c
+++ b/py/builtinimport.c
@@ -3,7 +3,7 @@
*
* The MIT License (MIT)
*
- * Copyright (c) 2013, 2014 Damien P. George
+ * Copyright (c) 2013-2019 Damien P. George
* Copyright (c) 2014 Paul Sokolovsky
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -381,21 +381,18 @@ mp_obj_t mp_builtin___import__(size_t n_args, const mp_obj_t *args) {
DEBUG_printf("Current path: %.*s\n", vstr_len(&path), vstr_str(&path));
if (stat == MP_IMPORT_STAT_NO_EXIST) {
+ module_obj = MP_OBJ_NULL;
#if MICROPY_MODULE_WEAK_LINKS
// check if there is a weak link to this module
if (i == mod_len) {
- mp_map_elem_t *el = mp_map_lookup((mp_map_t*)&mp_builtin_module_weak_links_map, MP_OBJ_NEW_QSTR(mod_name), MP_MAP_LOOKUP);
- if (el == NULL) {
- goto no_exist;
+ module_obj = mp_module_search_umodule(mod_str);
+ if (module_obj != MP_OBJ_NULL) {
+ // found weak linked module
+ mp_module_call_init(mod_name, module_obj);
}
- // found weak linked module
- module_obj = el->value;
- mp_module_call_init(mod_name, module_obj);
- } else {
- no_exist:
- #else
- {
+ }
#endif
+ if (module_obj == MP_OBJ_NULL) {
// couldn't find the file, so fail
if (MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE) {
mp_raise_msg(&mp_type_ImportError, "module not found");
@@ -492,11 +489,11 @@ mp_obj_t mp_builtin___import__(size_t n_args, const mp_obj_t *args) {
#if MICROPY_MODULE_WEAK_LINKS
// Check if there is a weak link to this module
- mp_map_elem_t *el = mp_map_lookup((mp_map_t*)&mp_builtin_module_weak_links_map, MP_OBJ_NEW_QSTR(module_name_qstr), MP_MAP_LOOKUP);
- if (el != NULL) {
+ module_obj = mp_module_search_umodule(qstr_str(module_name_qstr));
+ if (module_obj != MP_OBJ_NULL) {
// Found weak-linked module
- mp_module_call_init(module_name_qstr, el->value);
- return el->value;
+ mp_module_call_init(module_name_qstr, module_obj);
+ return module_obj;
}
#endif
diff --git a/py/mpconfig.h b/py/mpconfig.h
index 4172b5fcfe..e46da3e83c 100644
--- a/py/mpconfig.h
+++ b/py/mpconfig.h
@@ -1392,11 +1392,6 @@ typedef double mp_float_t;
#define MICROPY_PORT_BUILTIN_MODULES
#endif
-// Any module weak links - see objmodule.c:mp_builtin_module_weak_links_table.
-#ifndef MICROPY_PORT_BUILTIN_MODULE_WEAK_LINKS
-#define MICROPY_PORT_BUILTIN_MODULE_WEAK_LINKS
-#endif
-
// Additional constant definitions for the compiler - see compile.c:mp_constants_table.
#ifndef MICROPY_PORT_CONSTANTS
#define MICROPY_PORT_CONSTANTS
diff --git a/py/objmodule.c b/py/objmodule.c
index 4a07913c5e..d725bb6a14 100644
--- a/py/objmodule.c
+++ b/py/objmodule.c
@@ -3,7 +3,7 @@
*
* The MIT License (MIT)
*
- * Copyright (c) 2013, 2014 Damien P. George
+ * Copyright (c) 2013-2019 Damien P. George
* Copyright (c) 2014-2015 Paul Sokolovsky
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -26,6 +26,7 @@
*/
#include <stdlib.h>
+#include <string.h>
#include <assert.h>
#include "py/objmodule.h"
@@ -235,14 +236,6 @@ STATIC const mp_rom_map_elem_t mp_builtin_module_table[] = {
MP_DEFINE_CONST_MAP(mp_builtin_module_map, mp_builtin_module_table);
-#if MICROPY_MODULE_WEAK_LINKS
-STATIC const mp_rom_map_elem_t mp_builtin_module_weak_links_table[] = {
- MICROPY_PORT_BUILTIN_MODULE_WEAK_LINKS
-};
-
-MP_DEFINE_CONST_MAP(mp_builtin_module_weak_links_map, mp_builtin_module_weak_links_table);
-#endif
-
// returns MP_OBJ_NULL if not found
mp_obj_t mp_module_get(qstr module_name) {
mp_map_t *mp_loaded_modules_map = &MP_STATE_VM(mp_loaded_modules_dict).map;
@@ -267,6 +260,21 @@ void mp_module_register(qstr qst, mp_obj_t module) {
mp_map_lookup(mp_loaded_modules_map, MP_OBJ_NEW_QSTR(qst), MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = module;
}
+#if MICROPY_MODULE_WEAK_LINKS
+// Search for u"foo" in built-in modules, return MP_OBJ_NULL if not found
+mp_obj_t mp_module_search_umodule(const char *module_str) {
+ for (size_t i = 0; i < MP_ARRAY_SIZE(mp_builtin_module_table); ++i) {
+ const mp_map_elem_t *entry = (const mp_map_elem_t*)&mp_builtin_module_table[i];
+ const char *key = qstr_str(MP_OBJ_QSTR_VALUE(entry->key));
+ if (key[0] == 'u' && strcmp(&key[1], module_str) == 0) {
+ return (mp_obj_t)entry->value;
+ }
+
+ }
+ return MP_OBJ_NULL;
+}
+#endif
+
#if MICROPY_MODULE_BUILTIN_INIT
void mp_module_call_init(qstr module_name, mp_obj_t module_obj) {
// Look for __init__ and call it if it exists
diff --git a/py/objmodule.h b/py/objmodule.h
index b7702ec50b..33a0ff07e1 100644
--- a/py/objmodule.h
+++ b/py/objmodule.h
@@ -3,7 +3,7 @@
*
* The MIT License (MIT)
*
- * Copyright (c) 2013, 2014 Damien P. George
+ * Copyright (c) 2013-2019 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
@@ -34,6 +34,8 @@ extern const mp_map_t mp_builtin_module_weak_links_map;
mp_obj_t mp_module_get(qstr module_name);
void mp_module_register(qstr qstr, mp_obj_t module);
+mp_obj_t mp_module_search_umodule(const char *module_str);
+
#if MICROPY_MODULE_BUILTIN_INIT
void mp_module_call_init(qstr module_name, mp_obj_t module_obj);
#else