patch 9.0.1932: Vim9: error when using null object constructor Commit: https://github.com/vim/vim/commit/7398f367d5125eedfb4058c63a5d167fe8601e3d Author: Yegappan Lakshmanan <yegap...@yahoo.com> Date: Sun Sep 24 23:09:10 2023 +0200
patch 9.0.1932: Vim9: error when using null object constructor Problem: Vim9: error when using null object constructor Solution: Check for a null object only when calling an object method closes: #13154 closes: #13163 Signed-off-by: Christian Brabandt <c...@256bit.org> Co-authored-by: Yegappan Lakshmanan <yegap...@yahoo.com> diff --git a/src/testdir/test_vim9_class.vim b/src/testdir/test_vim9_class.vim index 87679d814..87dc53673 100644 --- a/src/testdir/test_vim9_class.vim +++ b/src/testdir/test_vim9_class.vim @@ -5675,4 +5675,34 @@ def Test_dict_object_member() v9.CheckSourceSuccess(lines) enddef +" The following test was failing after 9.0.1914. This was caused by using a +" freed object from a previous method call. +def Test_freed_object_from_previous_method_call() + var lines =<< trim END + vim9script + + class Context + endclass + + class Result + endclass + + def Failure(): Result + return Result.new() + enddef + + def GetResult(ctx: Context): Result + return Failure() + enddef + + def Test_GetResult() + var ctx = Context.new() + var result = GetResult(ctx) + enddef + + Test_GetResult() + END + v9.CheckSourceSuccess(lines) +enddef + " vim: ts=8 sw=2 sts=2 expandtab tw=80 fdm=marker diff --git a/src/version.c b/src/version.c index b5ffdd1fe..6166111ac 100644 --- a/src/version.c +++ b/src/version.c @@ -699,6 +699,8 @@ static char *(features[]) = static int included_patches[] = { /* Add new patch number below this line */ +/**/ + 1932, /**/ 1931, /**/ diff --git a/src/vim9execute.c b/src/vim9execute.c index a53b1b3bf..2fc7f343d 100644 --- a/src/vim9execute.c +++ b/src/vim9execute.c @@ -535,15 +535,6 @@ call_dfunc( // If this is an object method, the object is just before the arguments. typval_T *obj = STACK_TV_BOT(0) - argcount - vararg_count - 1; - if (obj->v_type == VAR_OBJECT && obj->vval.v_object == NULL - && !IS_CONSTRUCTOR_METHOD(ufunc)) - { - // If this is not the constructor method, then a valid object is - // needed. - emsg(_(e_using_null_object)); - return FAIL; - } - // Check the argument types. if (check_ufunc_arg_types(ufunc, argcount, vararg_count, ectx) == FAIL) return FAIL; @@ -610,6 +601,15 @@ call_dfunc( // the first local variable. if (IS_OBJECT_METHOD(ufunc)) { + if (obj->v_type == VAR_OBJECT && obj->vval.v_object == NULL + && !IS_CONSTRUCTOR_METHOD(ufunc)) + { + // If this is not a constructor method, then a valid object is + // needed. + emsg(_(e_using_null_object)); + return FAIL; + } + *STACK_TV_VAR(0) = *obj; obj->v_type = VAR_UNKNOWN; } -- -- You received this message from the "vim_dev" maillist. Do not top-post! Type your reply below the text you are replying to. For more information, visit http://www.vim.org/maillist.php --- You received this message because you are subscribed to the Google Groups "vim_dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to vim_dev+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/vim_dev/E1qkWRX-00A1ne-Js%40256bit.org.