changeset 35539:50f2489b234b v9.1.0529

patch 9.1.0529: silent! causes following try/catch to not work Commit: https://github.com/vim/vim/commit/749ba0f6d922b3f6b54a66543c214479492b5a0e Author: LemonBoy <thatlemon@gmail.com> Date: Thu Jul 4 19:23:16 2024 +0200 patch 9.1.0529: silent! causes following try/catch to not work Problem: silent! causes following try/catch to not work (Malcolm Rowe) Solution: consider emsg_silent in handle_did_throw() and do not abort evaluation flow for :silent! (LemonBoy) The silent! flag causes the evaluation not to be aborted in case of uncaught exceptions, adjust handle_did_throw to take this detail into account. Fixes the long-standing todo.txt item: ``` Problem that a previous silent ":throw" causes a following try/catch not to work. (ZyX, 2013 Sep 28) With examples: (Malcolm Rowe, 2015 Dec 24) Also see #8487 for an example. ``` fixes: #538 closes: #15128 Signed-off-by: LemonBoy <thatlemon@gmail.com> Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Thu, 04 Jul 2024 19:45:04 +0200
parents 37fbf37e11ff
children c0e777bb897a
files runtime/doc/todo.txt src/ex_docmd.c src/testdir/test_vimscript.vim src/version.c
diffstat 4 files changed, 35 insertions(+), 7 deletions(-) [+]
line wrap: on
line diff
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -1,4 +1,4 @@
-*todo.txt*      For Vim version 9.1.  Last change: 2024 Jun 03
+*todo.txt*      For Vim version 9.1.  Last change: 2024 Jul 04
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -512,10 +512,6 @@ Information for a specific terminal (e.g
 spread out.  Make a section with copy/paste examples of script and pointers to
 more information.
 
-Problem that a previous silent ":throw" causes a following try/catch not to
-work. (ZyX, 2013 Sep 28) With examples: (Malcolm Rowe, 2015 Dec 24)
-Also see #8487 for an example.
-
 Request to use "." for the cursor column in search pattern \%<.c and \%<.v.
 (#8179)
 
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -1460,8 +1460,13 @@ handle_did_throw(void)
     current_exception->throw_name = NULL;
 
     discard_current_exception();	// uses IObuff if 'verbose'
-    suppress_errthrow = TRUE;
-    force_abort = TRUE;
+
+    // If "silent!" is active the uncaught exception is not fatal.
+    if (emsg_silent == 0)
+    {
+	suppress_errthrow = TRUE;
+	force_abort = TRUE;
+    }
 
     if (messages != NULL)
     {
--- a/src/testdir/test_vimscript.vim
+++ b/src/testdir/test_vimscript.vim
@@ -7536,6 +7536,31 @@ func Test_deeply_nested_source()
   call system(cmd)
 endfunc
 
+func Test_exception_silent()
+  XpathINIT
+  let lines =<< trim END
+  func Throw()
+    Xpath 'a'
+    throw "Uncaught"
+    " This line is not executed.
+    Xpath 'b'
+  endfunc
+  " The exception is suppressed due to the presence of silent!.
+  silent! call Throw()
+  try
+    call DoesNotExist()
+  catch /E117:/
+    Xpath 'c'
+  endtry
+  Xpath 'd'
+  END
+  let verify =<< trim END
+    call assert_equal('acd', g:Xpath)
+  END
+
+  call RunInNewVim(lines, verify)
+endfunc
+
 "-------------------------------------------------------------------------------
 " Modelines								    {{{1
 " vim: ts=8 sw=2 sts=2 expandtab tw=80 fdm=marker
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    529,
+/**/
     528,
 /**/
     527,