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patch 8.1.0515: reloading a script gives errors for existing functions

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Problem:    Reloading a script gives errors for existing functions.
Solution:   Allow redefining a function once when reloading a script.
This commit is contained in:
Bram Moolenaar
2018-11-10 17:33:29 +01:00
parent 1bbb619483
commit ded5f1bed7
10 changed files with 55 additions and 11 deletions
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10
runtime/doc/eval.txt
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@@ -9673,9 +9673,13 @@ See |:verbose-cmd| for more information.
deleted if there are no more references to it.
*E127* *E122*
When a function by this name already exists and [!] is
not used an error message is given. When [!] is used,
an existing function is silently replaced. Unless it
is currently being executed, that is an error.
not used an error message is given. There is one
exception: When sourcing a script again, a function
that was previously defined in that script will be
silently replaced.
When [!] is used, an existing function is silently
replaced. Unless it is currently being executed, that
is an error.
NOTE: Use ! wisely. If used without care it can cause
an existing function to be replaced unexpectedly,
which is hard to debug.