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functions --copy: store file and lineno (#9542)

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Keeps the location of original function definition, and also stores
where it was copied. `functions` and `type` show both locations,
instead of none. It also retains the line numbers in the stack trace.
This commit is contained in:
esdmr
2023-02-13 19:29:28 +03:30
committed by GitHub
parent 904839dcce
commit a607421912
10 changed files with 240 additions and 40 deletions
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6
doc_src/cmds/functions.rst
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@@ -34,10 +34,10 @@ The following options are available:
Causes the specified functions to be erased. This also means that it is prevented from autoloading in the current session. Use :doc:`funcsave <funcsave>` to remove the saved copy.
**-D** or **--details**
Reports the path name where the specified function is defined or could be autoloaded, ``stdin`` if the function was defined interactively or on the command line or by reading standard input, **-** if the function was created via :doc:`source <source>`, and ``n/a`` if the function isn't available. (Functions created via :doc:`alias <alias>` will return **-**, because ``alias`` uses ``source`` internally.) If the **--verbose** option is also specified then five lines are written:
Reports the path name where the specified function is defined or could be autoloaded, ``stdin`` if the function was defined interactively or on the command line or by reading standard input, **-** if the function was created via :doc:`source <source>`, and ``n/a`` if the function isn't available. (Functions created via :doc:`alias <alias>` will return **-**, because ``alias`` uses ``source`` internally. Copied functions will return where the function was copied.) If the **--verbose** option is also specified then five lines are written:
- the pathname as already described,
- ``autoloaded``, ``not-autoloaded`` or ``n/a``,
- the path name as already described,
- if the function was copied, the path name to where the function was originally defined, otherwise ``autoloaded``, ``not-autoloaded`` or ``n/a``,
- the line number within the file or zero if not applicable,
- ``scope-shadowing`` if the function shadows the vars in the calling function (the normal case if it wasn't defined with **--no-scope-shadowing**), else ``no-scope-shadowing``, or ``n/a`` if the function isn't defined,
- the function description minimally escaped so it is a single line, or ``n/a`` if the function isn't defined or has no description.