Merge remote-tracking branch 'vim/master'

src/Make_cyg_ming.mak

@@ -415,7 +415,7 @@ WINDRES_CC = $(CC)
 ###########################################################################
 
 CFLAGS = -Iproto $(DEFINES) -pipe -march=$(ARCH) -Wall
-CXXFLAGS = -std=c++11
+CXXFLAGS = -std=gnu++11
 WINDRES_FLAGS = --preprocessor="$(WINDRES_CC) -E -xc" -DRC_INVOKED
 EXTRA_LIBS =
 

src/eval.c

@@ -209,7 +209,9 @@ static hashtab_T	func_hashtab;
 /* The names of packages that once were loaded are remembered. */
 static garray_T		ga_loaded = {0, 0, sizeof(char_u *), 4, NULL};
 
-/* list heads for garbage collection */
+/* List heads for garbage collection. Although there can be a reference loop
+ * from partial to dict to partial, we don't need to keep track of the partial,
+ * since it will get freed when the dict is unused and gets freed. */
 static dict_T		*first_dict = NULL;	/* list of all dicts */
 static list_T		*first_list = NULL;	/* list of all lists */
 
@@ -7130,9 +7132,14 @@ set_ref_in_item(
     list_T	*ll;
     int		abort = FALSE;
 
-    if (tv->v_type == VAR_DICT)
+    if (tv->v_type == VAR_DICT || tv->v_type == VAR_PARTIAL)
     {
-	dd = tv->vval.v_dict;
+	if (tv->v_type == VAR_DICT)
+	    dd = tv->vval.v_dict;
+	else if (tv->vval.v_partial != NULL)
+	    dd = tv->vval.v_partial->pt_dict;
+	else
+	    dd = NULL;
 	if (dd != NULL && dd->dv_copyID != copyID)
 	{
 	    /* Didn't see this dict yet. */
@@ -7184,6 +7191,32 @@ set_ref_in_item(
     return abort;
 }
 
+    static void
+partial_free(partial_T *pt, int free_dict)
+{
+    int i;
+
+    for (i = 0; i < pt->pt_argc; ++i)
+	clear_tv(&pt->pt_argv[i]);
+    vim_free(pt->pt_argv);
+    if (free_dict)
+	dict_unref(pt->pt_dict);
+    func_unref(pt->pt_name);
+    vim_free(pt->pt_name);
+    vim_free(pt);
+}
+
+/*
+ * Unreference a closure: decrement the reference count and free it when it
+ * becomes zero.
+ */
+    void
+partial_unref(partial_T *pt)
+{
+    if (pt != NULL && --pt->pt_refcount <= 0)
+	partial_free(pt, TRUE);
+}
+
 /*
  * Allocate an empty header for a dictionary.
  */
@@ -7275,7 +7308,18 @@ dict_free(
 	    hash_remove(&d->dv_hashtab, hi);
 	    if (recurse || (di->di_tv.v_type != VAR_LIST
 					     && di->di_tv.v_type != VAR_DICT))
-		clear_tv(&di->di_tv);
+	    {
+		if (!recurse && di->di_tv.v_type == VAR_PARTIAL)
+		{
+		    partial_T *pt = di->di_tv.vval.v_partial;
+
+		    /* We unref the partial but not the dict it refers to. */
+		    if (pt != NULL && --pt->pt_refcount == 0)
+			partial_free(pt, FALSE);
+		}
+		else
+		    clear_tv(&di->di_tv);
+	    }
 	    vim_free(di);
 	    --todo;
 	}
@@ -12011,30 +12055,6 @@ f_function(typval_T *argvars, typval_T *rettv)
     }
 }
 
-    static void
-partial_free(partial_T *pt)
-{
-    int i;
-
-    for (i = 0; i < pt->pt_argc; ++i)
-	clear_tv(&pt->pt_argv[i]);
-    vim_free(pt->pt_argv);
-    func_unref(pt->pt_name);
-    vim_free(pt->pt_name);
-    vim_free(pt);
-}
-
-/*
- * Unreference a closure: decrement the reference count and free it when it
- * becomes zero.
- */
-    void
-partial_unref(partial_T *pt)
-{
-    if (pt != NULL && --pt->pt_refcount <= 0)
-	partial_free(pt);
-}
-
 /*
  * "garbagecollect()" function
  */
@@ -21824,7 +21844,8 @@ handle_subscript(
 		selfdict = NULL;
 		if (rettv->v_type == VAR_FUNC)
 		{
-		    /* just a function: use selfdict */
+		    /* Just a function: Take over the function name and use
+		     * selfdict. */
 		    pt->pt_name = rettv->vval.v_string;
 		}
 		else
@@ -21832,8 +21853,11 @@ handle_subscript(
 		    partial_T	*ret_pt = rettv->vval.v_partial;
 		    int		i;
 
-		    /* partial: use selfdict and copy args */
+		    /* Partial: copy the function name, use selfdict and copy
+		     * args.  Can't take over name or args, the partial might
+		     * be referenced elsewhere. */
 		    pt->pt_name = vim_strsave(ret_pt->pt_name);
+		    func_ref(pt->pt_name);
 		    if (ret_pt->pt_argc > 0)
 		    {
 			pt->pt_argv = (typval_T *)alloc(
@@ -21850,7 +21874,6 @@ handle_subscript(
 		    }
 		    partial_unref(ret_pt);
 		}
-		func_ref(pt->pt_name);
 		rettv->v_type = VAR_PARTIAL;
 		rettv->vval.v_partial = pt;
 	    }

src/ex_getln.c

@@ -1997,6 +1997,7 @@ getcmdline_prompt(
     char_u		*s;
     struct cmdline_info	save_ccline;
     int			msg_col_save = msg_col;
+    int			msg_silent_save = msg_silent;
 
     save_cmdline(&save_ccline);
     ccline.cmdprompt = prompt;
@@ -2006,8 +2007,10 @@ getcmdline_prompt(
     ccline.xp_arg = xp_arg;
     ccline.input_fn = (firstc == '@');
 # endif
+    msg_silent = 0;
     s = getcmdline(firstc, 1L, 0);
     restore_cmdline(&save_ccline);
+    msg_silent = msg_silent_save;
     /* Restore msg_col, the prompt from input() may have changed it.
      * But only if called recursively and the commandline is therefore being
      * restored to an old one; if not, the input() prompt stays on the screen,

src/testdir/test_partial.vim

@@ -170,3 +170,13 @@ func Test_partial_string()
   let F = function('MyFunc', ['foo'], d)
   call assert_equal("function('MyFunc', ['foo'], {'one': 1})", string(F))
 endfunc
+
+func Test_func_unref()
+  let obj = {}
+  function! obj.func() abort
+  endfunction
+  let funcnumber = matchstr(string(obj.func), '^function(''\zs.\{-}\ze''')
+  call assert_true(exists('*{' . funcnumber . '}'))
+  unlet obj
+  call assert_false(exists('*{' . funcnumber . '}'))
+endfunc

src/version.c

@@ -763,6 +763,14 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1639,
+/**/
+    1638,
+/**/
+    1637,
+/**/
+    1636,
 /**/
     1635,
 /**/