py: Make collections module configurable, enabled by default.

py/builtintables.c

@@ -132,7 +132,9 @@ STATIC const mp_map_elem_t mp_builtin_module_table[] = {
 #if MICROPY_ENABLE_MOD_IO
     { MP_OBJ_NEW_QSTR(MP_QSTR_io), (mp_obj_t)&mp_module_io },
 #endif
+#if MICROPY_ENABLE_MOD_COLLECTIONS
     { MP_OBJ_NEW_QSTR(MP_QSTR__collections), (mp_obj_t)&mp_module_collections },
+#endif
 #if MICROPY_ENABLE_MOD_STRUCT
     { MP_OBJ_NEW_QSTR(MP_QSTR_struct), (mp_obj_t)&mp_module_struct },
 #endif

py/modcollections.c

@@ -4,6 +4,8 @@
 #include "obj.h"
 #include "builtin.h"
 
+#if MICROPY_ENABLE_MOD_COLLECTIONS
+
 STATIC const mp_map_elem_t mp_module_collections_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR__collections) },
     { MP_OBJ_NEW_QSTR(MP_QSTR_namedtuple), (mp_obj_t)&mp_namedtuple_obj },
@@ -25,3 +27,5 @@ const mp_obj_module_t mp_module_collections = {
     .name = MP_QSTR__collections,
     .globals = (mp_obj_dict_t*)&mp_module_collections_globals,
 };
+
+#endif // MICROPY_ENABLE_MOD_COLLECTIONS

py/mpconfig.h

@@ -115,6 +115,11 @@ typedef double mp_float_t;
 #define MICROPY_ENABLE_FLOAT (0)
 #endif
 
+// Whether to provide "collections" module
+#ifndef MICROPY_ENABLE_MOD_COLLECTIONS
+#define MICROPY_ENABLE_MOD_COLLECTIONS (1)
+#endif
+
 // Whether to provide "math" module
 #ifndef MICROPY_ENABLE_MOD_MATH
 #define MICROPY_ENABLE_MOD_MATH (1)

py/objnamedtuple.c

@@ -7,6 +7,8 @@
 #include "obj.h"
 #include "objtuple.h"
 
+#if MICROPY_ENABLE_MOD_COLLECTIONS
+
 typedef struct _mp_obj_namedtuple_type_t {
     mp_obj_type_t base;
     const char *fields;
@@ -143,3 +145,5 @@ STATIC mp_obj_t new_namedtuple_type(mp_obj_t name_in, mp_obj_t fields_in) {
     return mp_obj_new_namedtuple_type(name, fields);
 }
 MP_DEFINE_CONST_FUN_OBJ_2(mp_namedtuple_obj, new_namedtuple_type);
+
+#endif // MICROPY_ENABLE_MOD_COLLECTIONS