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| author | Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com> | 2022-06-05 15:24:09 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-06-05 15:24:09 (GMT) |
| commit | 4082c8e298a244edf6771839334372a47ece721d (patch) | |
| tree | b3311d1f6c136926d4a4eddea2e1ce2dd942b425 /Doc | |
| parent | 0902c3d8edf7ef67972dd95f6a21670f5d1a4251 (diff) | |
| download | cpython-4082c8e298a244edf6771839334372a47ece721d.zip cpython-4082c8e298a244edf6771839334372a47ece721d.tar.gz cpython-4082c8e298a244edf6771839334372a47ece721d.tar.bz2 | |
Document LOAD_FAST_CHECK opcode (#93498)
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/dis.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Doc/library/dis.rst b/Doc/library/dis.rst index 313870f..9163d1a 100644 --- a/Doc/library/dis.rst +++ b/Doc/library/dis.rst @@ -1042,6 +1042,17 @@ iterations of the loop. Pushes a reference to the local ``co_varnames[var_num]`` onto the stack. + .. versionchanged:: 3.12 + This opcode is now only used in situations where the local variable is + guaranteed to be initialized. It cannot raise :exc:`UnboundLocalError`. + +.. opcode:: LOAD_FAST_CHECK (var_num) + + Pushes a reference to the local ``co_varnames[var_num]`` onto the stack, + raising an :exc:`UnboundLocalError` if the local variable has not been + initialized. + + .. versionadded:: 3.12 .. opcode:: STORE_FAST (var_num) |