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diff src/eval.c @ 23428:5807e3958e38 v8.2.2257

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patch 8.2.2257: Vim9: using -> for lambda is ambiguous Commit: https://github.com/vim/vim/commit/2949cfdbe4335b9abcfeda1be4dfc52090ee1df6 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Dec 31 21:28:47 2020 +0100 patch 8.2.2257: Vim9: using -> for lambda is ambiguous Problem: Vim9: using -> for lambda is ambiguous. Solution: Stop supporting ->, must use =>.
author Bram Moolenaar <Bram@vim.org>
date Thu, 31 Dec 2020 21:30:03 +0100
parents 108039938e3c
children b1dbbc81a011
line wrap: on
line diff
--- a/src/eval.c
+++ b/src/eval.c
@@ -3316,7 +3316,10 @@ eval7(
      * Lambda: {arg, arg -> expr}
      * Dictionary: {'key': val, 'key': val}
      */
-    case '{':	ret = get_lambda_tv(arg, rettv, in_vim9script(), evalarg);
+    case '{':	if (in_vim9script())
+		    ret = NOTDONE;
+		else
+		    ret = get_lambda_tv(arg, rettv, in_vim9script(), evalarg);
 		if (ret == NOTDONE)
 		    ret = eval_dict(arg, rettv, evalarg, FALSE);
 		break;
@@ -3617,7 +3620,24 @@ eval_lambda(
     *arg += 2;
     rettv->v_type = VAR_UNKNOWN;
 
-    ret = get_lambda_tv(arg, rettv, FALSE, evalarg);
+    if (**arg == '{')
+    {
+	// ->{lambda}()
+	ret = get_lambda_tv(arg, rettv, FALSE, evalarg);
+    }
+    else
+    {
+	// ->(lambda)()
+	++*arg;
+	ret = eval1(arg, rettv, evalarg);
+	*arg = skipwhite_and_linebreak(*arg, evalarg);
+	if (**arg != ')')
+	{
+	    emsg(_(e_missing_close));
+	    ret = FAIL;
+	}
+	++*arg;
+    }
     if (ret != OK)
 	return FAIL;
     else if (**arg != '(')
@@ -5645,8 +5665,8 @@ handle_subscript(
 	    *arg = p;
 	    if (ret == OK)
 	    {
-		if ((*arg)[2] == '{')
-		    // expr->{lambda}()
+		if (((*arg)[2] == '{' && !in_vim9script()) || (*arg)[2] == '(')
+		    // expr->{lambda}() or expr->(lambda)()
 		    ret = eval_lambda(arg, rettv, evalarg, verbose);
 		else
 		    // expr->name()