patch 8.2.4140: maparg() does not indicate the type of script

Problem:    maparg() does not indicate the type of script where it was defined.
Solution:   Add "scriptversion".

runtime/doc/builtin.txt

@@ -5247,6 +5247,8 @@ maparg({name} [, {mode} [, {abbr} [, {dict}]]])			*maparg()*
 				     (|mapmode-ic|)
 		  "sid"	     The script local ID, used for <sid> mappings
 			     (|<SID>|).
+		  "scriptversion"  The version of the script.  999999 for
+		  		   |Vim9| script.
 		  "lnum"     The line number in "sid", zero if unknown.
 		  "nowait"   Do not wait for other, longer mappings.
 			     (|:map-<nowait>|).

src/map.c

@@ -222,6 +222,7 @@ map_add(
 #ifdef FEAT_EVAL
 	int	    expr,
 	scid_T	    sid,	    // -1 to use current_sctx
+	int	    scriptversion,
 	linenr_T    lnum,
 #endif
 	int	    simplified)
@@ -259,11 +260,11 @@ map_add(
     mp->m_simplified = simplified;
 #ifdef FEAT_EVAL
     mp->m_expr = expr;
-    if (sid >= 0)
+    if (sid > 0)
     {
 	mp->m_script_ctx.sc_sid = sid;
 	mp->m_script_ctx.sc_lnum = lnum;
-	mp->m_script_ctx.sc_version = in_vim9script() ? SCRIPT_VERSION_VIM9 : 0;
+	mp->m_script_ctx.sc_version = scriptversion;
     }
     else
     {
@@ -844,7 +845,7 @@ do_map(
 	if (map_add(map_table, abbr_table, keys, rhs, orig_rhs,
 		    noremap, nowait, silent, mode, abbrev,
 #ifdef FEAT_EVAL
-		    expr, /* sid */ -1, /* lnum */ 0,
+		    expr, /* sid */ -1, /* scriptversion */ 0, /* lnum */ 0,
 #endif
 		    did_simplify && keyround == 1) == FAIL)
 	{
@@ -2302,6 +2303,8 @@ get_maparg(typval_T *argvars, typval_T *rettv, int exact)
 	dict_add_number(dict, "expr", mp->m_expr ? 1L : 0L);
 	dict_add_number(dict, "silent", mp->m_silent ? 1L : 0L);
 	dict_add_number(dict, "sid", (long)mp->m_script_ctx.sc_sid);
+	dict_add_number(dict, "scriptversion",
+					    (long)mp->m_script_ctx.sc_version);
 	dict_add_number(dict, "lnum", (long)mp->m_script_ctx.sc_lnum);
 	dict_add_number(dict, "buffer", (long)buffer_local);
 	dict_add_number(dict, "nowait", mp->m_nowait ? 1L : 0L);
@@ -2371,6 +2374,7 @@ f_mapset(typval_T *argvars, typval_T *rettv UNUSED)
     int		silent;
     int		buffer;
     scid_T	sid;
+    int		scriptversion;
     linenr_T	lnum;
     mapblock_T	**map_table = maphash;
     mapblock_T  **abbr_table = &first_abbr;
@@ -2416,6 +2420,7 @@ f_mapset(typval_T *argvars, typval_T *rettv UNUSED)
     expr = dict_get_number(d, (char_u *)"expr") != 0;
     silent = dict_get_number(d, (char_u *)"silent") != 0;
     sid = dict_get_number(d, (char_u *)"sid");
+    scriptversion = dict_get_number(d, (char_u *)"scriptversion");
     lnum = dict_get_number(d, (char_u *)"lnum");
     buffer = dict_get_number(d, (char_u *)"buffer");
     nowait = dict_get_number(d, (char_u *)"nowait") != 0;
@@ -2446,10 +2451,11 @@ f_mapset(typval_T *argvars, typval_T *rettv UNUSED)
     vim_free(arg);
 
     (void)map_add(map_table, abbr_table, lhsraw, rhs, orig_rhs, noremap,
-	    nowait, silent, mode, is_abbr, expr, sid, lnum, 0);
+	    nowait, silent, mode, is_abbr, expr, sid, scriptversion, lnum, 0);
     if (lhsrawalt != NULL)
 	(void)map_add(map_table, abbr_table, lhsrawalt, rhs, orig_rhs, noremap,
-		nowait, silent, mode, is_abbr, expr, sid, lnum, 1);
+		nowait, silent, mode, is_abbr, expr, sid, scriptversion,
+								      lnum, 1);
     vim_free(keys_buf);
     vim_free(arg_buf);
 }

src/testdir/test_maparg.vim

@@ -18,26 +18,30 @@ func Test_maparg()
   call assert_equal("is<F4>foo", maparg('foo<C-V>'))
   call assert_equal({'silent': 0, 'noremap': 0, 'script': 0, 'lhs': 'foo<C-V>',
         \ 'lhsraw': "foo\x80\xfc\x04V", 'lhsrawalt': "foo\x16",
-        \ 'mode': ' ', 'nowait': 0, 'expr': 0, 'sid': sid, 'lnum': lnum + 1, 
+        \ 'mode': ' ', 'nowait': 0, 'expr': 0, 'sid': sid, 'scriptversion': 1,
+        \ 'lnum': lnum + 1, 
 	\ 'rhs': 'is<F4>foo', 'buffer': 0},
 	\ maparg('foo<C-V>', '', 0, 1))
   call assert_equal({'silent': 1, 'noremap': 1, 'script': 1, 'lhs': 'bar',
         \ 'lhsraw': 'bar', 'mode': 'v',
-        \ 'nowait': 0, 'expr': 1, 'sid': sid, 'lnum': lnum + 2,
+        \ 'nowait': 0, 'expr': 1, 'sid': sid, 'scriptversion': 1,
+        \ 'lnum': lnum + 2,
 	\ 'rhs': 'isbar', 'buffer': 1},
         \ 'bar'->maparg('', 0, 1))
   let lnum = expand('<sflnum>')
   map <buffer> <nowait> foo bar
   call assert_equal({'silent': 0, 'noremap': 0, 'script': 0, 'lhs': 'foo',
         \ 'lhsraw': 'foo', 'mode': ' ',
-        \ 'nowait': 1, 'expr': 0, 'sid': sid, 'lnum': lnum + 1, 'rhs': 'bar',
+        \ 'nowait': 1, 'expr': 0, 'sid': sid, 'scriptversion': 1,
+        \ 'lnum': lnum + 1, 'rhs': 'bar',
 	\ 'buffer': 1},
         \ maparg('foo', '', 0, 1))
   let lnum = expand('<sflnum>')
   tmap baz foo
   call assert_equal({'silent': 0, 'noremap': 0, 'script': 0, 'lhs': 'baz',
         \ 'lhsraw': 'baz', 'mode': 't',
-        \ 'nowait': 0, 'expr': 0, 'sid': sid, 'lnum': lnum + 1, 'rhs': 'foo',
+        \ 'nowait': 0, 'expr': 0, 'sid': sid, 'scriptversion': 1,
+        \ 'lnum': lnum + 1, 'rhs': 'foo',
 	\ 'buffer': 0},
         \ maparg('baz', 't', 0, 1))
 

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4140,
 /**/
     4139,
 /**/