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" Functions shared by the tests for Vim Script
" Commands to track the execution path of a script
com! XpathINIT let g:Xpath = ''
com! -nargs=1 -bar Xpath let g:Xpath ..= <args>
com! XloopINIT let g:Xloop = 1
com! -nargs=1 -bar Xloop let g:Xpath ..= <args> .. g:Xloop
com! XloopNEXT let g:Xloop += 1
" MakeScript() - Make a script file from a function. {{{2
"
" Create a script that consists of the body of the function a:funcname.
" Replace any ":return" by a ":finish", any argument variable by a global
" variable, and every ":call" by a ":source" for the next following argument
" in the variable argument list. This function is useful if similar tests are
" to be made for a ":return" from a function call or a ":finish" in a script
" file.
func MakeScript(funcname, ...)
let script = tempname()
execute "redir! >" . script
execute "function" a:funcname
redir END
execute "edit" script
" Delete the "function" and the "endfunction" lines. Do not include the
" word "function" in the pattern since it might be translated if LANG is
" set. When MakeScript() is being debugged, this deletes also the debugging
" output of its line 3 and 4.
exec '1,/.*' . a:funcname . '(.*)/d'
/^\d*\s*endfunction\>/,$d
%s/^\d*//e
%s/return/finish/e
%s/\<a:\(\h\w*\)/g:\1/ge
normal gg0
let cnt = 0
while search('\<call\s*\%(\u\|s:\)\w*\s*(.*)', 'W') > 0
let cnt = cnt + 1
s/\<call\s*\%(\u\|s:\)\w*\s*(.*)/\='source ' . a:{cnt}/
endwhile
g/^\s*$/d
write
bwipeout
return script
endfunc
" ExecAsScript - Source a temporary script made from a function. {{{2
"
" Make a temporary script file from the function a:funcname, ":source" it, and
" delete it afterwards. However, if an exception is thrown the file may remain,
" the caller should call DeleteTheScript() afterwards.
let s:script_name = ''
func ExecAsScript(funcname)
" Make a script from the function passed as argument.
let s:script_name = MakeScript(a:funcname)
" Source and delete the script.
exec "source" s:script_name
call delete(s:script_name)
let s:script_name = ''
endfunc
func DeleteTheScript()
if s:script_name
call delete(s:script_name)
let s:script_name = ''
endif
endfunc
com! -nargs=1 -bar ExecAsScript call ExecAsScript(<f-args>)
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