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| author | Scott Shawcroft <scott@tannewt.org> | 2019-05-13 17:31:30 -0700 |
|---|---|---|
| committer | Scott Shawcroft <scott@tannewt.org> | 2019-05-13 17:31:30 -0700 |
| commit | f29de5132562cd6e88661d150fa1ee3ab8b771e1 (patch) | |
| tree | 1f3ac8c4779e4badc825d22fac3c38aceb5bb99e /shared-bindings/displayio/TileGrid.c | |
| parent | a6785d7ff74e156c5bcfdd8f46b1cccae41cc3bf (diff) | |
Check native object in case of early access
If a native displayio object is accessed before it's super().__init__()
has been called, then a placeholder is given that will cause a crash if
accessed. This is tricky to get right so we detect this case and raise
a NotInplementedError instead of crashing.
Fixes #1881
Diffstat (limited to 'shared-bindings/displayio/TileGrid.c')
| -rw-r--r-- | shared-bindings/displayio/TileGrid.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/shared-bindings/displayio/TileGrid.c b/shared-bindings/displayio/TileGrid.c index 2b41eb8fd..6d18ac78f 100644 --- a/shared-bindings/displayio/TileGrid.c +++ b/shared-bindings/displayio/TileGrid.c @@ -31,6 +31,7 @@ #include "lib/utils/context_manager_helpers.h" #include "py/binary.h" #include "py/objproperty.h" +#include "py/objtype.h" #include "py/runtime.h" #include "shared-bindings/displayio/Bitmap.h" #include "shared-bindings/displayio/ColorConverter.h" @@ -139,6 +140,7 @@ STATIC mp_obj_t displayio_tilegrid_make_new(const mp_obj_type_t *type, size_t n_ // Helper to ensure we have the native super class instead of a subclass. static displayio_tilegrid_t* native_tilegrid(mp_obj_t tilegrid_obj) { mp_obj_t native_tilegrid = mp_instance_cast_to_native_base(tilegrid_obj, &displayio_tilegrid_type); + mp_obj_assert_native_inited(native_tilegrid); return MP_OBJ_TO_PTR(native_tilegrid); } |