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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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27
src/testdir/test_functions.vim
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@@ -1138,3 +1138,30 @@ func Test_func_range_with_edit()
call delete('Xfuncrange2')
bwipe!
endfunc
func Test_func_exists_on_reload()
call writefile(['func ExistingFunction()', 'echo "yes"', 'endfunc'], 'Xfuncexists')
call assert_equal(0, exists('*ExistingFunction'))
source Xfuncexists
call assert_equal(1, exists('*ExistingFunction'))
" Redefining a function when reloading a script is OK.
source Xfuncexists
call assert_equal(1, exists('*ExistingFunction'))
" But redefining in another script is not OK.
call writefile(['func ExistingFunction()', 'echo "yes"', 'endfunc'], 'Xfuncexists2')
call assert_fails('source Xfuncexists2', 'E122:')
delfunc ExistingFunction
call assert_equal(0, exists('*ExistingFunction'))
call writefile([
\ 'func ExistingFunction()', 'echo "yes"', 'endfunc',
\ 'func ExistingFunction()', 'echo "no"', 'endfunc',
\ ], 'Xfuncexists')
call assert_fails('source Xfuncexists', 'E122:')
call assert_equal(1, exists('*ExistingFunction'))
call delete('Xfuncexists2')
call delete('Xfuncexists')
delfunc ExistingFunction
endfunc