patch 8.1.1987: more functions can be used as methodsv8.1.1987

Problem:    More functions can be used as methods.
Solution:   Make various functions usable as a method.

8 files changed, 100 insertions, 42 deletions

diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 89eac20f4..8d51ab0e1 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1,4 +1,4 @@
-*eval.txt*	For Vim version 8.1.  Last change: 2019 Aug 31
+*eval.txt*	For Vim version 8.1.  Last change: 2019 Sep 04
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -2547,7 +2547,7 @@ keys({dict})			List	keys in {dict}
 len({expr})			Number	the length of {expr}
 libcall({lib}, {func}, {arg})	String	call {func} in library {lib} with {arg}
 libcallnr({lib}, {func}, {arg})	Number	idem, but return a Number
-line({expr})			Number	line nr of cursor, last line or mark
+line({expr} [, {winid}])	Number	line nr of cursor, last line or mark
 line2byte({lnum})		Number	byte count of line {lnum}
 lispindent({lnum})		Number	Lisp indent for line {lnum}
 list2str({list} [, {utf8}])	String	turn numbers in {list} into a String
@@ -5688,8 +5688,8 @@ glob2regpat({expr})					 *glob2regpat()*
 			GetExpr()->glob2regpat()
 <								*globpath()*
 globpath({path}, {expr} [, {nosuf} [, {list} [, {alllinks}]]])
-		Perform glob() on all directories in {path} and concatenate
-		the results.  Example: >
+		Perform glob() for {expr} on all directories in {path} and
+		concatenate the results.  Example: >
 			:echo globpath(&rtp, "syntax/c.vim")
 <
 		{path} is a comma-separated list of directory names.  Each
@@ -5790,7 +5790,9 @@ hasmapto({what} [, {mode} [, {abbr}]])			*hasmapto()*
 		If no matching mapping is found 0 is returned.
 		The following characters are recognized in {mode}:
 			n	Normal mode
-			v	Visual mode
+			v	Visual and Select mode
+			x	Visual mode
+			s	Select mode
 			o	Operator-pending mode
 			i	Insert mode
 			l	Language-Argument ("r", "f", "t", etc.)
@@ -6376,8 +6378,9 @@ libcallnr({libname}, {funcname}, {argument})
 		the argument to the called function: >
 			GetValue()->libcallnr("libc.so", "printf")
 <
-							*line()*
-line({expr})	The result is a Number, which is the line number of the file
+
+line({expr} [, {winid}])				*line()*
+		The result is a Number, which is the line number of the file
 		position given with {expr}.  The accepted positions are:
 		    .	    the cursor position
 		    $	    the last line in the current buffer
@@ -6395,8 +6398,11 @@ line({expr})	The result is a Number, which is the line number of the file
 		then applies to another buffer.
 		To get the column number use |col()|.  To get both use
 		|getpos()|.
+		With the optional {winid} argument the values are obtained for
+		that window instead of the current window.
 		Examples: >
 			line(".")		line number of the cursor
+			line(".", winid)	idem, in window "winid"
 			line("'t")		line number of mark t
 			line("'" . marker)	line number of mark marker
 <
@@ -7547,6 +7553,9 @@ range({expr} [, {max} [, {stride}]])				*range()*
 			range(0)		" []
 			range(2, 0)		" error!
 <
+		Can also be used as a |method|: >
+			GetExpr()->range()
+<
 							*readdir()*
 readdir({directory} [, {expr}])
 		Return a list with file and directory names in {directory}.
@@ -7576,6 +7585,9 @@ readdir({directory} [, {expr}])
                   endfunction
                   echo s:tree(".")
 <
+		Can also be used as a |method|: >
+			GetDirName()->readdir()
+<
 							*readfile()*
 readfile({fname} [, {type} [, {max}]])
 		Read file {fname} and return a |List|, each line of the file
@@ -7610,6 +7622,9 @@ readfile({fname} [, {type} [, {max}]])
 		the result is an empty list.
 		Also see |writefile()|.
 
+		Can also be used as a |method|: >
+			GetFileName()->readfile()
+
 reg_executing()						*reg_executing()*
 		Returns the single letter name of the register being executed.
 		Returns an empty string when no register is being executed.
@@ -7631,6 +7646,10 @@ reltime([{start} [, {end}]])				*reltime()*
 		and {end}.
 		The {start} and {end} arguments must be values returned by
 		reltime().
+
+		Can also be used as a |method|: >
+			GetStart()->reltime()
+<
 		{only available when compiled with the |+reltime| feature}
 
 reltimefloat({time})				*reltimefloat()*
@@ -7641,7 +7660,11 @@ reltimefloat({time})				*reltimefloat()*
 			let seconds = reltimefloat(reltime(start))
 <		See the note of reltimestr() about overhead.
 		Also see |profiling|.
-		{only available when compiled with the |+reltime| feature}
+
+		Can also be used as a |method|: >
+			reltime(start)->reltimefloat()
+
+<		{only available when compiled with the |+reltime| feature}
 
 reltimestr({time})				*reltimestr()*
 		Return a String that represents the time value of {time}.
@@ -7656,7 +7679,11 @@ reltimestr({time})				*reltimestr()*
 		can use split() to remove it. >
 			echo split(reltimestr(reltime(start)))[0]
 <		Also see |profiling|.
-		{only available when compiled with the |+reltime| feature}
+
+		Can also be used as a |method|: >
+			reltime(start)->reltimestr()
+
+<		{only available when compiled with the |+reltime| feature}
 
 							*remote_expr()* *E449*
 remote_expr({server}, {string} [, {idvar} [, {timeout}]])
@@ -7685,6 +7712,8 @@ remote_expr({server}, {string} [, {idvar} [, {timeout}]])
 			:echo remote_expr("gvim", "2+2")
 			:echo remote_expr("gvim1", "b:current_syntax")
 <
+		Can also be used as a |method|: >
+			ServerName()->remote_expr(expr)
 
 remote_foreground({server})				*remote_foreground()*
 		Move the Vim server with the name {server} to the foreground.
@@ -7696,7 +7725,11 @@ remote_foreground({server})				*remote_foreground()*
 		Note: This does not restore the window if it was minimized,
 		like foreground() does.
 		This function is not available in the |sandbox|.
-		{only in the Win32, Athena, Motif and GTK GUI versions and the
+
+		Can also be used as a |method|: >
+			ServerName()->remote_foreground()
+
+<		{only in the Win32, Athena, Motif and GTK GUI versions and the
 		Win32 console version}
 
 
@@ -7714,6 +7747,9 @@ remote_peek({serverid} [, {retvar}])		*remote_peek()*
 			:let repl = ""
 			:echo "PEEK: ".remote_peek(id, "repl").": ".repl
 
+<		Can also be used as a |method|: >
+			ServerId()->remote_peek()
+
 remote_read({serverid}, [{timeout}])			*remote_read()*
 		Return the oldest available reply from {serverid} and consume
 		it.  Unless a {timeout} in seconds is given, it blocks until a
@@ -7723,6 +7759,9 @@ remote_read({serverid}, [{timeout}])			*remote_read()*
 		{only available when compiled with the |+clientserver| feature}
 		Example: >
 			:echo remote_read(id)
+
+<		Can also be used as a |method|: >
+			ServerId()->remote_read()
 <
 							*remote_send()* *E241*
 remote_send({server}, {string} [, {idvar}])
@@ -7747,11 +7786,18 @@ remote_send({server}, {string} [, {idvar}])
 		:echo remote_send("gvim", ":sleep 10 | echo ".
 		 \ 'server2client(expand("<client>"), "HELLO")<CR>')
 <
+		Can also be used as a |method|: >
+			ServerName()->remote_send(keys)
+<
 					*remote_startserver()* *E941* *E942*
 remote_startserver({name})
 		Become the server {name}.  This fails if already running as a
 		server, when |v:servername| is not empty.
-		{only available when compiled with the |+clientserver| feature}
+
+		Can also be used as a |method|: >
+			ServerName()->remote_startserver()
+
+<		{only available when compiled with the |+clientserver| feature}
 
 remove({list}, {idx} [, {end}])				*remove()*
 		Without {end}: Remove the item at {idx} from |List| {list} and
@@ -7795,6 +7841,9 @@ rename({from}, {to})					*rename()*
 		NOTE: If {to} exists it is overwritten without warning.
 		This function is not available in the |sandbox|.
 
+		Can also be used as a |method|: >
+			GetOldName()->rename(newname)
+
 repeat({expr}, {count})					*repeat()*
 		Repeat {expr} {count} times and return the concatenated
 		result.  Example: >
@@ -7824,6 +7873,8 @@ resolve({filename})					*resolve()* *E655*
 		current directory (provided the result is still a relative
 		path name) and also keeps a trailing path separator.
 
+		Can also be used as a |method|: >
+			GetName()->resolve()
 
 reverse({object})					*reverse()*
 		Reverse the order of items in {object} in-place.
@@ -7861,7 +7912,11 @@ rubyeval({expr})					*rubyeval()*
 		Hashes are represented as Vim |Dictionary| type.
 		Other objects are represented as strings resulted from their
 		"Object#to_s" method.
-		{only available when compiled with the |+ruby| feature}
+
+		Can also be used as a |method|: >
+			GetRubyExpr()->rubyeval()
+
+<		{only available when compiled with the |+ruby| feature}
 
 screenattr({row}, {col})					*screenattr()*
 		Like |screenchar()|, but return the attribute.  This is a rather
@@ -10231,6 +10286,7 @@ macunix			Synonym for osxdarwin
 menu			Compiled with support for |:menu|.
 mksession		Compiled with support for |:mksession|.
 modify_fname		Compiled with file name modifiers. |filename-modifiers|
+			(always true)
 mouse			Compiled with support mouse.
 mouse_dec		Compiled with support for Dec terminal mouse.
 mouse_gpm		Compiled with support for gpm (Linux console mouse)
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 13326e32b..676f0376a 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -684,32 +684,32 @@ static funcentry_T global_functions[] =
 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3)
     {"pyxeval",		1, 1, FEARG_1,	  f_pyxeval},
 #endif
-    {"range",		1, 3, 0,	  f_range},
-    {"readdir",		1, 2, 0,	  f_readdir},
-    {"readfile",	1, 3, 0,	  f_readfile},
+    {"range",		1, 3, FEARG_1,	  f_range},
+    {"readdir",		1, 2, FEARG_1,	  f_readdir},
+    {"readfile",	1, 3, FEARG_1,	  f_readfile},
     {"reg_executing",	0, 0, 0,	  f_reg_executing},
     {"reg_recording",	0, 0, 0,	  f_reg_recording},
-    {"reltime",		0, 2, 0,	  f_reltime},
+    {"reltime",		0, 2, FEARG_1,	  f_reltime},
 #ifdef FEAT_FLOAT
-    {"reltimefloat",	1, 1, 0,	  f_reltimefloat},
-#endif
-    {"reltimestr",	1, 1, 0,	  f_reltimestr},
-    {"remote_expr",	2, 4, 0,	  f_remote_expr},
-    {"remote_foreground", 1, 1, 0,	  f_remote_foreground},
-    {"remote_peek",	1, 2, 0,	  f_remote_peek},
-    {"remote_read",	1, 2, 0,	  f_remote_read},
-    {"remote_send",	2, 3, 0,	  f_remote_send},
-    {"remote_startserver", 1, 1, 0,	  f_remote_startserver},
+    {"reltimefloat",	1, 1, FEARG_1,	  f_reltimefloat},
+#endif
+    {"reltimestr",	1, 1, FEARG_1,	  f_reltimestr},
+    {"remote_expr",	2, 4, FEARG_1,	  f_remote_expr},
+    {"remote_foreground", 1, 1, FEARG_1,  f_remote_foreground},
+    {"remote_peek",	1, 2, FEARG_1,	  f_remote_peek},
+    {"remote_read",	1, 2, FEARG_1,	  f_remote_read},
+    {"remote_send",	2, 3, FEARG_1,	  f_remote_send},
+    {"remote_startserver", 1, 1, FEARG_1,  f_remote_startserver},
     {"remove",		2, 3, FEARG_1,	  f_remove},
-    {"rename",		2, 2, 0,	  f_rename},
+    {"rename",		2, 2, FEARG_1,	  f_rename},
     {"repeat",		2, 2, FEARG_1,	  f_repeat},
-    {"resolve",		1, 1, 0,	  f_resolve},
+    {"resolve",		1, 1, FEARG_1,	  f_resolve},
     {"reverse",		1, 1, FEARG_1,	  f_reverse},
 #ifdef FEAT_FLOAT
     {"round",		1, 1, FEARG_1,	  f_round},
 #endif
 #ifdef FEAT_RUBY
-    {"rubyeval",	1, 1, 0,	  f_rubyeval},
+    {"rubyeval",	1, 1, FEARG_1,	  f_rubyeval},
 #endif
     {"screenattr",	2, 2, 0,	  f_screenattr},
     {"screenchar",	2, 2, 0,	  f_screenchar},
diff --git a/src/testdir/test_clientserver.vim b/src/testdir/test_clientserver.vim
index 385ff9129..2e4a66ef8 100644
--- a/src/testdir/test_clientserver.vim
+++ b/src/testdir/test_clientserver.vim
@@ -34,7 +34,7 @@ func Test_client_server()
   " When using valgrind it takes much longer.
   call WaitForAssert({-> assert_match(name, serverlist())})
 
-  call remote_foreground(name)
+  eval name->remote_foreground()
 
   call remote_send(name, ":let testvar = 'yes'\<CR>")
   call WaitFor('remote_expr("' . name . '", "exists(\"testvar\") ? testvar : \"\"", "", 1) == "yes"')
@@ -53,7 +53,7 @@ func Test_client_server()
     endif
     " Wait for the server to be up and answering requests.
     sleep 100m
-    call WaitForAssert({-> assert_true(remote_expr(name, "v:version", "", 1) != "")})
+    call WaitForAssert({-> assert_true(name->remote_expr("v:version", "", 1) != "")})
 
     call remote_send(name, ":let testvar = 'maybe'\<CR>")
     call WaitForAssert({-> assert_equal('maybe', remote_expr(name, "testvar", "", 2))})
@@ -63,7 +63,7 @@ func Test_client_server()
 
   " Expression evaluated locally.
   if v:servername == ''
-    call remote_startserver('MYSELF')
+    eval 'MYSELF'->remote_startserver()
     " May get MYSELF1 when running the test again.
     call assert_match('MYSELF', v:servername)
   endif
@@ -71,11 +71,11 @@ func Test_client_server()
   call assert_equal('myself', remote_expr(v:servername, 'testvar'))
 
   call remote_send(name, ":call server2client(expand('<client>'), 'got it')\<CR>", 'g:myserverid')
-  call assert_equal('got it', remote_read(g:myserverid, 2))
+  call assert_equal('got it', g:myserverid->remote_read(2))
 
   call remote_send(name, ":call server2client(expand('<client>'), 'another')\<CR>", 'g:myserverid')
   let peek_result = 'nothing'
-  let r = remote_peek(g:myserverid, 'peek_result')
+  let r = g:myserverid->remote_peek('peek_result')
   " unpredictable whether the result is already available.
   if r > 0
     call assert_equal('another', peek_result)
@@ -89,7 +89,7 @@ func Test_client_server()
   call assert_equal('another', g:peek_result)
   call assert_equal('another', remote_read(g:myserverid, 2))
 
-  call remote_send(name, ":qa!\<CR>")
+  eval name->remote_send(":qa!\<CR>")
   try
     call WaitForAssert({-> assert_equal("dead", job_status(job))})
   finally
diff --git a/src/testdir/test_eval_stuff.vim b/src/testdir/test_eval_stuff.vim
index 82f9cac24..b518f5ae6 100644
--- a/src/testdir/test_eval_stuff.vim
+++ b/src/testdir/test_eval_stuff.vim
@@ -75,7 +75,7 @@ func Test_readfile_binary()
   call setline(1, ['one', 'two', 'three'])
   setlocal ff=dos
   write XReadfile
-  let lines = readfile('XReadfile')
+  let lines = 'XReadfile'->readfile()
   call assert_equal(['one', 'two', 'three'], lines)
   let lines = readfile('XReadfile', '', 2)
   call assert_equal(['one', 'two'], lines)
diff --git a/src/testdir/test_functions.vim b/src/testdir/test_functions.vim
index fc22bcd32..dfd6a933b 100644
--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -253,7 +253,7 @@ func Test_resolve_unix()
   call delete('Xlink')
 
   silent !ln -s -f Xlink2/ Xlink1
-  call assert_equal('Xlink2', resolve('Xlink1'))
+  call assert_equal('Xlink2', 'Xlink1'->resolve())
   call assert_equal('Xlink2/', resolve('Xlink1/'))
   call delete('Xlink1')
 
@@ -1413,7 +1413,7 @@ func Test_func_range_with_edit()
   " is invalid in that buffer.
   call writefile(['just one line'], 'Xfuncrange2')
   new
-  call setline(1, range(10))
+  call setline(1, 10->range())
   write Xfuncrange1
   call assert_fails('5,8call EditAnotherFile()', 'E16:')
 
@@ -1544,7 +1544,7 @@ func Test_readdir()
   call assert_equal(['bar.txt', 'dir', 'foo.txt'], sort(files))
 
   " Only results containing "f"
-  let files = readdir('Xdir', { x -> stridx(x, 'f') !=- 1 })
+  let files = 'Xdir'->readdir({ x -> stridx(x, 'f') !=- 1 })
   call assert_equal(['foo.txt'], sort(files))
 
   " Only .txt files
diff --git a/src/testdir/test_reltime.vim b/src/testdir/test_reltime.vim
index 404ea3f7a..e25c3cede 100644
--- a/src/testdir/test_reltime.vim
+++ b/src/testdir/test_reltime.vim
@@ -8,11 +8,11 @@ func Test_reltime()
   let now = reltime()
   sleep 10m
   let later = reltime()
-  let elapsed = reltime(now)
+  let elapsed = now->reltime()
   call assert_true(reltimestr(elapsed) =~ '0\.0')
-  call assert_true(reltimestr(elapsed) != '0.0')
+  call assert_true(elapsed->reltimestr() != '0.0')
   call assert_true(reltimefloat(elapsed) < 0.1)
-  call assert_true(reltimefloat(elapsed) > 0.0)
+  call assert_true(elapsed->reltimefloat() > 0.0)
 
   let same = reltime(now, now)
   call assert_equal('0.000', split(reltimestr(same))[0][:4])
diff --git a/src/testdir/test_rename.vim b/src/testdir/test_rename.vim
index 2311caf79..3887fcfab 100644
--- a/src/testdir/test_rename.vim
+++ b/src/testdir/test_rename.vim
@@ -25,7 +25,7 @@ func Test_rename_file_ignore_case()
   set fileignorecase
   call writefile(['foo'], 'Xrename')
 
-  call assert_equal(0, rename('Xrename', 'XRENAME'))
+  call assert_equal(0, 'Xrename'->rename('XRENAME'))
 
   call assert_equal(['foo'], readfile('XRENAME'))
 
diff --git a/src/version.c b/src/version.c
index d61b59c47..420d1ff52 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1987,
+/**/
     1986,
 /**/
     1985,