Patch 8.2.4880

[Bram Moolenaar]

Patch 8.2.4880
Problem: Vim9: misplaced elseif causes invalid memory access.
Solution: Check cs_idx not to be negative.
Files: src/ex_eval.c


*** ../vim-8.2.4879/src/ex_eval.c 2022-05-05 17:02:41.494034106 +0100
--- src/ex_eval.c 2022-05-06 11:26:20.056878950 +0100
***************
*** 1124,1133 ****
skip = TRUE;
}

! // Variables declared in the previous block can no longer be
! // used. Needs to be done before setting "cs_flags".
! leave_block(cstack);
! enter_block(cstack);

// if skipping or the ":if" was TRUE, reset ACTIVE, otherwise set it
if (skip || cstack->cs_flags[cstack->cs_idx] & CSF_TRUE)
--- 1124,1136 ----
skip = TRUE;
}

! if (cstack->cs_idx >= 0)
! {
! // Variables declared in the previous block can no longer be
! // used. Needs to be done before setting "cs_flags".
! leave_block(cstack);
! enter_block(cstack);
! }

// if skipping or the ":if" was TRUE, reset ACTIVE, otherwise set it
if (skip || cstack->cs_flags[cstack->cs_idx] & CSF_TRUE)
*** ../vim-8.2.4879/src/version.c 2022-05-06 11:21:13.961097837 +0100
--- src/version.c 2022-05-06 11:27:19.492832599 +0100
***************
*** 748,749 ****
--- 748,751 ----
{ /* Add new patch number below this line */
+ /**/
+ 4880,
/**/

--
hundred-and-one symptoms of being an internet addict:
111. You and your friends get together regularly on IRC, even though
all of you live in the same street.

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
/// \\\
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