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" Test 'tagfunc'
func TagFunc(pat, flag, info)
let g:tagfunc_args = [a:pat, a:flag, a:info]
let tags = []
for num in range(1,10)
let tags += [{
\ 'cmd': '2', 'name': 'nothing'.num, 'kind': 'm',
\ 'filename': 'Xfile1', 'user_data': 'somedata'.num,
\}]
endfor
return tags
endfunc
func Test_tagfunc()
set tagfunc=TagFunc
new Xfile1
call setline(1, ['empty', 'one()', 'empty'])
write
call assert_equal({'cmd': '2', 'static': 0,
\ 'name': 'nothing2', 'user_data': 'somedata2',
\ 'kind': 'm', 'filename': 'Xfile1'}, taglist('.')[1])
call settagstack(win_getid(), {'items': []})
tag arbitrary
call assert_equal('arbitrary', g:tagfunc_args[0])
call assert_equal('', g:tagfunc_args[1])
call assert_equal('somedata1', gettagstack().items[0].user_data)
5tag arbitrary
call assert_equal('arbitrary', g:tagfunc_args[0])
call assert_equal('', g:tagfunc_args[1])
call assert_equal('somedata5', gettagstack().items[1].user_data)
pop
tag
call assert_equal('arbitrary', g:tagfunc_args[0])
call assert_equal('', g:tagfunc_args[1])
call assert_equal('somedata5', gettagstack().items[1].user_data)
let g:tagfunc_args=[]
execute "normal! \<c-]>"
call assert_equal('one', g:tagfunc_args[0])
call assert_equal('c', g:tagfunc_args[1])
let g:tagfunc_args=[]
execute "tag /foo$"
call assert_equal('foo$', g:tagfunc_args[0])
call assert_equal('r', g:tagfunc_args[1])
set cpt=t
let g:tagfunc_args=[]
execute "normal! i\<c-n>\<c-y>"
call assert_equal('\<\k\k', g:tagfunc_args[0])
call assert_equal('cir', g:tagfunc_args[1])
call assert_equal('nothing1', getline('.')[0:7])
let g:tagfunc_args=[]
execute "normal! ono\<c-n>\<c-n>\<c-y>"
call assert_equal('\<no', g:tagfunc_args[0])
call assert_equal('cir', g:tagfunc_args[1])
call assert_equal('nothing2', getline('.')[0:7])
func BadTagFunc1(...)
return 0
endfunc
func BadTagFunc2(...)
return [1]
endfunc
func BadTagFunc3(...)
return [{'name': 'foo'}]
endfunc
for &tagfunc in ['BadTagFunc1', 'BadTagFunc2', 'BadTagFunc3']
try
tag nothing
call assert_false(1, 'tag command should have failed')
catch
call assert_exception('E987:')
endtry
exe 'delf' &tagfunc
endfor
func NullTagFunc(...)
return v:null
endfunc
set tags= tfu=NullTagFunc
call assert_fails('tag nothing', 'E433:')
delf NullTagFunc
bwipe!
set tags& tfu& cpt&
call delete('Xfile1')
endfunc
" Test for modifying the tag stack from a tag function and jumping to a tag
" from a tag function
func Test_tagfunc_settagstack()
func Mytagfunc1(pat, flags, info)
call settagstack(1, {'tagname' : 'mytag', 'from' : [0, 10, 1, 0]})
return [{'name' : 'mytag', 'filename' : 'Xtest', 'cmd' : '1'}]
endfunc
set tagfunc=Mytagfunc1
call writefile([''], 'Xtest')
call assert_fails('tag xyz', 'E986:')
func Mytagfunc2(pat, flags, info)
tag test_tag
return [{'name' : 'mytag', 'filename' : 'Xtest', 'cmd' : '1'}]
endfunc
set tagfunc=Mytagfunc2
call assert_fails('tag xyz', 'E986:')
call delete('Xtest')
set tagfunc&
delfunc Mytagfunc1
delfunc Mytagfunc2
endfunc
" Test for different ways of setting the 'tagfunc' option
func Test_tagfunc_callback()
" Test for using a function()
func MytagFunc1(pat, flags, info)
let g:MytagFunc1_args = [a:pat, a:flags, a:info]
return v:null
endfunc
let g:MytagFunc1_args = []
set tagfunc=function('MytagFunc1')
call assert_fails('tag abc', 'E433:')
call assert_equal(['abc', '', {}], g:MytagFunc1_args)
" Test for using a funcref()
new
func MytagFunc2(pat, flags, info)
let g:MytagFunc2_args = [a:pat, a:flags, a:info]
return v:null
endfunc
let g:MytagFunc2_args = []
set tagfunc=funcref('MytagFunc2')
call assert_fails('tag def', 'E433:')
call assert_equal(['def', '', {}], g:MytagFunc2_args)
" Test for using a lambda function
new
func MytagFunc3(pat, flags, info)
let g:MytagFunc3_args = [a:pat, a:flags, a:info]
return v:null
endfunc
let g:MytagFunc3_args = []
let &tagfunc= '{a, b, c -> MytagFunc3(a, b, c)}'
call assert_fails('tag ghi', 'E433:')
call assert_equal(['ghi', '', {}], g:MytagFunc3_args)
" Test for clearing the 'tagfunc' option
set tagfunc=''
set tagfunc&
call assert_fails("set tagfunc=function('abc')", "E700:")
call assert_fails("set tagfunc=funcref('abc')", "E700:")
let &tagfunc = "{a -> 'abc'}"
call assert_fails("echo taglist('a')", "E987:")
" cleanup
delfunc MytagFunc1
delfunc MytagFunc2
delfunc MytagFunc3
%bw!
endfunc
" vim: shiftwidth=2 sts=2 expandtab
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