Access violation trying to access C.evaluated_get().view_layer_eval.depsgraph #62504

New Issue

System Information
Operating system: Win 10
Graphics card: gtx1080

Blender Version
Broken: b28 March 12, 14:38:10 - 936014ea8c

Access violation when trying to access C.evaluated_depsgraph_get().view_layer_eval.depsgraph. Crash occurs when trying to list the members of view_layer_eval in an evaluated depsgraph. Looks like the member depsgraph is causing it. All member names not staring with d lists fine. When doing dir(C.evaluated_depsgraph_get().view_layer_eval) it tells me depsgraph is the only member starting with d in this namespace.

Exact steps for others to reproduce the error

Open interactive console and type the below. The last line should crash.

deg = C.evaluated_depsgraph_get()
deg.view_layer_eval.depsgraph

See attached redundant gif.
I even made a blend file. Just hit ctrl+space

![view_layer_eval.gif](https://archive.blender.org/developer/F6810810/view_layer_eval.gif) [view_layer_eval_crash.blend](https://archive.blender.org/developer/F6810814/view_layer_eval_crash.blend) **System Information** Operating system: Win 10 Graphics card: gtx1080 **Blender Version** Broken: b28 March 12, 14:38:10 - 936014ea8c74 Access violation when trying to access C.evaluated_depsgraph_get().view_layer_eval.depsgraph. Crash occurs when trying to list the members of `view_layer_eval` in an evaluated depsgraph. Looks like the member `depsgraph` is causing it. All member names not staring with `d` lists fine. When doing `dir(C.evaluated_depsgraph_get().view_layer_eval)` it tells me `depsgraph` is the only member starting with `d` in this namespace. **Exact steps for others to reproduce the error** 1. Open interactive console and type the below. The last line should crash. ``` deg = C.evaluated_depsgraph_get() deg.view_layer_eval.depsgraph ``` See attached redundant gif. I even made a blend file. Just hit ctrl+space

Added subscriber: @KaiJaegersen

Added subscriber: @JacquesLucke

Simply executing the following script in the text editor also shows the bug.

lang=python
import bpy
bpy.context.depsgraph.view_layer_eval.depsgraph

Simply executing the following script in the text editor also shows the bug. ``` lang=python import bpy bpy.context.depsgraph.view_layer_eval.depsgraph ```

Added subscriber: @iss

Changed status from 'Confirmed' to: 'Needs User Info'

bpy.context no longer has depsgraph member

If I do steps to reproduce on evaluated_depsgraph_get() I get no crash.

Can you please check if this is still an issue in latest build?
https://builder.blender.org/download/

bpy.context no longer has `depsgraph` member If I do steps to reproduce on `evaluated_depsgraph_get()` I get no crash. Can you please check if this is still an issue in latest build? https://builder.blender.org/download/

Yeah. Type in console:

deg = C.evaluated_depsgraph_get()

deg.view_layer_eval.depsgraph  <- crash on hitting Enter

I don't think there's anything useful in this particular location, just the crash accessing in itself was amusing back then.

Yeah. Type in console: ``` deg = C.evaluated_depsgraph_get() deg.view_layer_eval.depsgraph <- crash on hitting Enter ``` I don't think there's anything useful in this particular location, just the crash accessing in itself was amusing back then.

Changed status from 'Needs User Info' to: 'Confirmed'

Ok, can confirm.

>	blender.exe!rna_ViewLayer_depsgraph_get(PointerRNA * ptr) Line 171	C

 	blender.exe!ViewLayer_depsgraph_get(PointerRNA * ptr) Line 908	C
 	blender.exe!RNA_property_pointer_get(PointerRNA * ptr, PropertyRNA * prop) Line 3757	C
 	blender.exe!pyrna_prop_to_py(PointerRNA * ptr, PropertyRNA * prop) Line 1565	C
 	blender.exe!pyrna_struct_getattro(BPy_StructRNA * self, _object * pyname) Line 4261	C
 	[Externí kód]	
 	blender.exe!bpy_class_call(bContext * C, PointerRNA * ptr, FunctionRNA * func, ParameterList * parms) Line 8333	C
 	blender.exe!rna_operator_execute_cb(bContext * C, wmOperator * op) Line 1307	C
 	blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1269	C
 	blender.exe!wm_operator_call_internal(bContext * C, wmOperatorType * ot, PointerRNA * properties, ReportList * reports, const short context, const bool poll_only, wmEvent * event) Line 1504	C
 	blender.exe!WM_operator_name_call_ptr(bContext * C, wmOperatorType * ot, short context, PointerRNA * properties) Line 1519	C
 	blender.exe!console_indent_or_autocomplete_exec(bContext * C, wmOperator * UNUSED_op) Line 486	C
 	blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1269	C
 	blender.exe!wm_handler_operator_call(bContext * C, ListBase * handlers, wmEventHandler * handler_base, wmEvent * event, PointerRNA * properties, const unsigned char * kmi_idname) Line 2081	C
 	blender.exe!wm_handlers_do_keymap_with_keymap_handler(bContext * C, wmEvent * event, ListBase * handlers, wmEventHandler_Keymap * handler, wmKeyMap * keymap, const bool do_debug_handler) Line 2391	C
 	blender.exe!wm_handlers_do_intern(bContext * C, wmEvent * event, ListBase * handlers) Line 2527	C
 	blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 2792	C
 	blender.exe!wm_event_do_handlers(bContext * C) Line 3245	C
 	blender.exe!WM_main(bContext * C) Line 421	C
 	blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 520	C

id was null

Ok, can confirm. ``` > blender.exe!rna_ViewLayer_depsgraph_get(PointerRNA * ptr) Line 171 C blender.exe!ViewLayer_depsgraph_get(PointerRNA * ptr) Line 908 C blender.exe!RNA_property_pointer_get(PointerRNA * ptr, PropertyRNA * prop) Line 3757 C blender.exe!pyrna_prop_to_py(PointerRNA * ptr, PropertyRNA * prop) Line 1565 C blender.exe!pyrna_struct_getattro(BPy_StructRNA * self, _object * pyname) Line 4261 C [Externí kód] blender.exe!bpy_class_call(bContext * C, PointerRNA * ptr, FunctionRNA * func, ParameterList * parms) Line 8333 C blender.exe!rna_operator_execute_cb(bContext * C, wmOperator * op) Line 1307 C blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1269 C blender.exe!wm_operator_call_internal(bContext * C, wmOperatorType * ot, PointerRNA * properties, ReportList * reports, const short context, const bool poll_only, wmEvent * event) Line 1504 C blender.exe!WM_operator_name_call_ptr(bContext * C, wmOperatorType * ot, short context, PointerRNA * properties) Line 1519 C blender.exe!console_indent_or_autocomplete_exec(bContext * C, wmOperator * UNUSED_op) Line 486 C blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1269 C blender.exe!wm_handler_operator_call(bContext * C, ListBase * handlers, wmEventHandler * handler_base, wmEvent * event, PointerRNA * properties, const unsigned char * kmi_idname) Line 2081 C blender.exe!wm_handlers_do_keymap_with_keymap_handler(bContext * C, wmEvent * event, ListBase * handlers, wmEventHandler_Keymap * handler, wmKeyMap * keymap, const bool do_debug_handler) Line 2391 C blender.exe!wm_handlers_do_intern(bContext * C, wmEvent * event, ListBase * handlers) Line 2527 C blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 2792 C blender.exe!wm_event_do_handlers(bContext * C) Line 3245 C blender.exe!WM_main(bContext * C) Line 421 C blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 520 C ``` `id` was null

This issue was referenced by 055c0f9077

This issue was referenced by 055c0f907733a070e3ecc6484981742fa7f433dd

This issue was referenced by 9d290c9fc6

This issue was referenced by 9d290c9fc62acdbb53fb34922916521f2027ed33

This issue was referenced by ca39325826

This issue was referenced by ca393258262625a82a3389bf3ad6a8dc6cd22dff

Changed status from 'Confirmed' to: 'Resolved'

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Access violation trying to access C.evaluated_get().view_layer_eval.depsgraph #62504