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patch 9.0.2050: Vim9: crash with deferred function call and exception

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Problem:  Vim9: crash with deferred function call and exception
Solution: Save and restore exception state

Crash when a deferred function is called after an exception and another
exception is thrown

closes: #13376
closes: #13377

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
This commit is contained in:
Yegappan Lakshmanan
2023-10-19 10:52:34 +02:00
committed by Christian Brabandt
parent d7b616d0ad
commit c59c1e0d88
8 changed files with 106 additions and 50 deletions
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22
src/testdir/test_user_func.vim
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@@ -873,11 +873,21 @@ endfunc
" Test for calling a deferred function after an exception
func Test_defer_after_exception()
let g:callTrace = []
func Bar()
let g:callTrace += [1]
throw 'InnerException'
endfunc
func Defer()
let g:callTrace += ['a']
let g:callTrace += ['b']
let g:callTrace += ['c']
let g:callTrace += ['d']
let g:callTrace += [2]
let g:callTrace += [3]
try
call Bar()
catch /InnerException/
let g:callTrace += [4]
endtry
let g:callTrace += [5]
let g:callTrace += [6]
endfunc
func Foo()
@@ -888,9 +898,9 @@ func Test_defer_after_exception()
try
call Foo()
catch /TestException/
let g:callTrace += ['e']
let g:callTrace += [7]
endtry
call assert_equal(['a', 'b', 'c', 'd', 'e'], g:callTrace)
call assert_equal([2, 3, 1, 4, 5, 6, 7], g:callTrace)
delfunc Defer
delfunc Foo