System.AsyncProcess: Fixed an issue where an error would occur if a callback was not set.

Author: mikoto2000

autoload/vital/__vital__/System/AsyncProcess.vim

@@ -96,11 +96,16 @@ function! s:execute(command, options) abort
 
   let job_id = -1
   if s:is_nvim
-    let options = {
-          \ 'on_stdout': function('s:_inner_out_cb', [a:options.out_cb]),
-          \ 'on_stderr': function('s:_inner_err_cb', [a:options.err_cb]),
-          \ 'on_exit': function('s:_inner_exit_cb', [a:options.exit_cb]),
-          \ }
+    let options = {}
+    if has_key(a:options, 'out_cb')
+      let options['on_stdout'] = function('s:_inner_out_cb', [a:options.out_cb])
+    endif
+    if has_key(a:options, 'err_cb')
+      let options['on_stderr'] = function('s:_inner_err_cb', [a:options.err_cb])
+    endif
+    if has_key(a:options, 'exit_cb')
+      let options['on_exit'] = function('s:_inner_exit_cb', [a:options.exit_cb])
+    endif
 
     let job_id = jobstart([&shell] + args, options)
 
@@ -114,11 +119,16 @@ function! s:execute(command, options) abort
           \ 'stop': function('jobstop', [job_id]),
           \  }
   else
-    let options = {
-          \ 'out_cb': function('s:_inner_out_cb', [a:options.out_cb]),
-          \ 'err_cb': function('s:_inner_err_cb', [a:options.err_cb]),
-          \ 'exit_cb': function('s:_inner_exit_cb', [a:options.exit_cb]),
-          \ }
+    let options = {}
+    if has_key(a:options, 'out_cb')
+      let options['out_cb'] = function('s:_inner_out_cb', [a:options.out_cb])
+    endif
+    if has_key(a:options, 'err_cb')
+      let options['err_cb'] = function('s:_inner_err_cb', [a:options.err_cb])
+    endif
+    if has_key(a:options, 'exit_cb')
+      let options['exit_cb'] = function('s:_inner_exit_cb', [a:options.exit_cb])
+    endif
 
     let job = job_start([&shell] + args, options)
 

test/System/AsyncProcess.vimspec

@@ -69,6 +69,15 @@ Describe System.AsyncProcess
     End
   End
 
+  Describe .execute({args})
+    It uses a String item
+      let args = 'echo "abcdefg"'
+      call AsyncProcess.execute(args, {})
+
+      " expect is nothing error
+    End
+  End
+
   Describe .stop()
     It stop
       let g:out_msg = []