[Bf-blender-cvs] [dfa52017638] master: Python: add opcodes for safe py-drivers

[Campbell Barton]

Commit: dfa52017638abdf59791e5588c439d3a558a191d
Author: Campbell Barton
Date:   Tue Jul 5 13:41:53 2022 +1000
Branches: master
https://developer.blender.org/rBdfa52017638abdf59791e5588c439d3a558a191d

Python: add opcodes for safe py-drivers

New opcodes added since 3.7 meant some actions such as `len()`
were disabled in safe py-driver execution.

The following opcodes have been added, see [0] for details:

- ROT_FOUR: similar to existing ROT_* opcodes, added v3.8.

- ROT_N: similar to existing ROT_* opcodes, added v3.10.

- GET_LEN: Push len(TOS) onto the stack, added v3.10.

- IS_OP: for ternary operator, added v3.9.

- BUILD_SLICE: access `slice` built-in, doesn't expose new
  functionality beyond existing `__getitem__` access.

[0]: https://docs.python.org/3.10/library/dis.html

===================================================================

M	source/blender/python/intern/bpy_driver.c

===================================================================

diff --git a/source/blender/python/intern/bpy_driver.c b/source/blender/python/intern/bpy_driver.c
index a9cc0019783..05def07a6d7 100644
--- a/source/blender/python/intern/bpy_driver.c
+++ b/source/blender/python/intern/bpy_driver.c
@@ -290,6 +290,7 @@ static const char secure_opcodes[255] = {
     OK_OP(ROT_THREE),
     OK_OP(DUP_TOP),
     OK_OP(DUP_TOP_TWO),
+    OK_OP(ROT_FOUR),
     OK_OP(NOP),
     OK_OP(UNARY_POSITIVE),
     OK_OP(UNARY_NEGATIVE),
@@ -307,6 +308,7 @@ static const char secure_opcodes[255] = {
     OK_OP(BINARY_TRUE_DIVIDE),
     OK_OP(INPLACE_FLOOR_DIVIDE),
     OK_OP(INPLACE_TRUE_DIVIDE),
+    OK_OP(GET_LEN),
     OK_OP(INPLACE_ADD),
     OK_OP(INPLACE_SUBTRACT),
     OK_OP(INPLACE_MULTIPLY),
@@ -323,6 +325,7 @@ static const char secure_opcodes[255] = {
     OK_OP(INPLACE_XOR),
     OK_OP(INPLACE_OR),
     OK_OP(RETURN_VALUE),
+    OK_OP(ROT_N),
     OK_OP(BUILD_TUPLE),
     OK_OP(BUILD_LIST),
     OK_OP(BUILD_SET),
@@ -335,9 +338,11 @@ static const char secure_opcodes[255] = {
     OK_OP(POP_JUMP_IF_FALSE),
     OK_OP(POP_JUMP_IF_TRUE),
     OK_OP(LOAD_GLOBAL),
+    OK_OP(IS_OP),
     OK_OP(LOAD_FAST),
     OK_OP(STORE_FAST),
     OK_OP(DELETE_FAST),
+    OK_OP(BUILD_SLICE),
     OK_OP(LOAD_DEREF),
     OK_OP(STORE_DEREF),