From 8d1ca37d1f413b08f5ff9ceb502fa35ffd6034c7 Mon Sep 17 00:00:00 2001
From: Sean Dewar <seandewar@users.noreply.github.com>
Date: Fri, 6 Aug 2021 18:31:27 +0100
Subject: vim-patch:8.1.1816: cannot use a user defined function as a method

Problem:    Cannot use a user defined function as a method.
Solution:   Pass the base as the first argument to the user defined function
            after "->". (partly by FUJIWARA Takuya)
https://github.com/vim/vim/commit/fcfe1a9b8950b8b211ab3b24d84b17c6847ea43f
---
 src/nvim/testdir/sautest/autoload/foo.vim |  4 ++++
 src/nvim/testdir/test_autoload.vim        |  2 ++
 src/nvim/testdir/test_user_func.vim       | 18 +++++++++++++++++-
 3 files changed, 23 insertions(+), 1 deletion(-)

(limited to 'src/nvim/testdir')

diff --git a/src/nvim/testdir/sautest/autoload/foo.vim b/src/nvim/testdir/sautest/autoload/foo.vim
index d7dcd5ce3d..298e7275d8 100644
--- a/src/nvim/testdir/sautest/autoload/foo.vim
+++ b/src/nvim/testdir/sautest/autoload/foo.vim
@@ -5,3 +5,7 @@ let foo#bar = {}
 func foo#bar.echo()
   let g:called_foo_bar_echo += 1
 endfunc
+
+func foo#addFoo(head)
+  return a:head .. 'foo'
+endfunc
diff --git a/src/nvim/testdir/test_autoload.vim b/src/nvim/testdir/test_autoload.vim
index 7396c227c9..b8c4fa251f 100644
--- a/src/nvim/testdir/test_autoload.vim
+++ b/src/nvim/testdir/test_autoload.vim
@@ -8,6 +8,8 @@ func Test_autoload_dict_func()
   call g:foo#bar.echo()
   call assert_equal(1, g:loaded_foo_vim)
   call assert_equal(1, g:called_foo_bar_echo)
+
+  eval 'bar'->g:foo#addFoo()->assert_equal('barfoo')
 endfunc
 
 func Test_source_autoload()
diff --git a/src/nvim/testdir/test_user_func.vim b/src/nvim/testdir/test_user_func.vim
index 7dcd92a54b..5231ef7b4f 100644
--- a/src/nvim/testdir/test_user_func.vim
+++ b/src/nvim/testdir/test_user_func.vim
@@ -47,7 +47,7 @@ func FuncWithRef(a)
 endfunc
 
 func Test_user_func()
-  let g:FuncRef=function("FuncWithRef")
+  let g:FuncRef = function("FuncWithRef")
   let g:counter = 0
   inoremap <expr> ( ListItem()
   inoremap <expr> [ ListReset()
@@ -62,6 +62,14 @@ func Test_user_func()
   call assert_equal(9, g:retval)
   call assert_equal(333, g:FuncRef(333))
 
+  let g:retval = "nop"
+  call assert_equal('xxx4asdf', "xxx"->Table(4, "asdf"))
+  call assert_equal('fail', 45->Compute(0, "retval"))
+  call assert_equal('nop', g:retval)
+  call assert_equal('ok', 45->Compute(5, "retval"))
+  call assert_equal(9, g:retval)
+  " call assert_equal(333, 333->g:FuncRef())
+
   enew
 
   normal oXX+-XX
@@ -150,6 +158,14 @@ func Test_default_arg()
 	\ execute('func Args2'))
 endfunc
 
+func s:addFoo(lead)
+  return a:lead .. 'foo'
+endfunc
+
+func Test_user_method()
+  eval 'bar'->s:addFoo()->assert_equal('barfoo')
+endfunc
+
 func Test_failed_call_in_try()
   try | call UnknownFunc() | catch | endtry
 endfunc
-- 
cgit