patch 7.4.1608

Problem:    string() doesn't handle a partial.
Solution:   Make a string from a partial.

src/eval.c

@@ -7897,9 +7897,49 @@ tv2string(
 	    *tofree = string_quote(tv->vval.v_string, TRUE);
 	    return *tofree;
 	case VAR_PARTIAL:
-	    *tofree = string_quote(tv->vval.v_partial == NULL ? NULL
+	    {
-					 : tv->vval.v_partial->pt_name, TRUE);
+		partial_T   *pt = tv->vval.v_partial;
+		char_u	    *fname = string_quote(pt == NULL ? NULL
+							: pt->pt_name, FALSE);
+		garray_T    ga;
+		int	    i;
+		char_u	    *tf;
+
+		ga_init2(&ga, 1, 100);
+		ga_concat(&ga, (char_u *)"function(");
+		if (fname != NULL)
+		{
+		    ga_concat(&ga, fname);
+		    vim_free(fname);
+		}
+		if (pt != NULL && pt->pt_argc > 0)
+		{
+		    ga_concat(&ga, (char_u *)", [");
+		    for (i = 0; i < pt->pt_argc; ++i)
+		    {
+			if (i > 0)
+			    ga_concat(&ga, (char_u *)", ");
+			ga_concat(&ga,
+			     tv2string(&pt->pt_argv[i], &tf, numbuf, copyID));
+			vim_free(tf);
+		    }
+		    ga_concat(&ga, (char_u *)"]");
+		}
+		if (pt != NULL && pt->pt_dict != NULL)
+		{
+		    typval_T dtv;
+
+		    ga_concat(&ga, (char_u *)", ");
+		    dtv.v_type = VAR_DICT;
+		    dtv.vval.v_dict = pt->pt_dict;
+		    ga_concat(&ga, tv2string(&dtv, &tf, numbuf, copyID));
+		    vim_free(tf);
+		}
+		ga_concat(&ga, (char_u *)")");
+
+		*tofree = ga.ga_data;
 		return *tofree;
+	    }
 	case VAR_STRING:
 	    *tofree = string_quote(tv->vval.v_string, FALSE);
 	    return *tofree;

src/testdir/test_partial.vim

@@ -156,3 +156,17 @@ func Test_partial_exists()
   let lF = [F]
   call assert_true(exists('*lF[0]'))
 endfunc
+
+func Test_partial_string()
+  let F = function('MyFunc')
+  call assert_equal("function('MyFunc')", string(F))
+  let F = function('MyFunc', ['foo'])
+  call assert_equal("function('MyFunc', ['foo'])", string(F))
+  let F = function('MyFunc', ['foo', 'bar'])
+  call assert_equal("function('MyFunc', ['foo', 'bar'])", string(F))
+  let d = {'one': 1}
+  let F = function('MyFunc', d)
+  call assert_equal("function('MyFunc', {'one': 1})", string(F))
+  let F = function('MyFunc', ['foo'], d)
+  call assert_equal("function('MyFunc', ['foo'], {'one': 1})", string(F))
+endfunc

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1608,
 /**/
     1607,
 /**/