diff options
| author | Mark Shannon <mark@hotpy.org> | 2021-05-07 14:19:19 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-05-07 14:19:19 (GMT) |
| commit | adcd2205565f91c6719f4141ab4e1da6d7086126 (patch) | |
| tree | 0953b285944eccde57b05b8f3c7e30fb501a3d64 /Misc | |
| parent | b32c8e97951db46484ba3b646b988bcdc4062199 (diff) | |
| download | cpython-adcd2205565f91c6719f4141ab4e1da6d7086126.zip cpython-adcd2205565f91c6719f4141ab4e1da6d7086126.tar.gz cpython-adcd2205565f91c6719f4141ab4e1da6d7086126.tar.bz2 | |
bpo-40222: "Zero cost" exception handling (GH-25729)
"Zero cost" exception handling.
* Uses a lookup table to determine how to handle exceptions.
* Removes SETUP_FINALLY and POP_TOP block instructions, eliminating (most of) the runtime overhead of try statements.
* Reduces the size of the frame object by about 60%.
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2021-04-30-15-48-36.bpo-40222.j3VxeX.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-04-30-15-48-36.bpo-40222.j3VxeX.rst b/Misc/NEWS.d/next/Core and Builtins/2021-04-30-15-48-36.bpo-40222.j3VxeX.rst new file mode 100644 index 0000000..b774475 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2021-04-30-15-48-36.bpo-40222.j3VxeX.rst @@ -0,0 +1,7 @@ +"Zero cost" exception handling. + +* Uses a lookup table to determine how to handle exceptions. +* Removes SETUP_FINALLY and POP_TOP block instructions, eliminating the runtime overhead of try statements. +* Reduces the size of the frame object by about 60%. + +Patch by Mark Shannon |