patch 9.0.0724: closure in compiled function gets same variable in block
Problem: Closure in compiled function gets same variable in block.
Solution: At the end of a block to not always reset the variable count.
(issue #11094)
diff --git a/src/vim9cmds.c b/src/vim9cmds.c
index d209a16..a1e8ac1 100644
--- a/src/vim9cmds.c
+++ b/src/vim9cmds.c
@@ -57,22 +57,20 @@
}
/*
* Remove local variables above "new_top".
+ * Do this by clearing the name. If "keep" is TRUE do not reset the length, a
+ * closure may still need location of the variable.
*/
static void
-unwind_locals(cctx_T *cctx, int new_top)
+unwind_locals(cctx_T *cctx, int new_top, int keep)
{
if (cctx->ctx_locals.ga_len > new_top)
- {
- int idx;
- lvar_T *lvar;
-
- for (idx = new_top; idx < cctx->ctx_locals.ga_len; ++idx)
+ for (int idx = new_top; idx < cctx->ctx_locals.ga_len; ++idx)
{
- lvar = ((lvar_T *)cctx->ctx_locals.ga_data) + idx;
- vim_free(lvar->lv_name);
+ lvar_T *lvar = ((lvar_T *)cctx->ctx_locals.ga_data) + idx;
+ VIM_CLEAR(lvar->lv_name);
}
- }
- cctx->ctx_locals.ga_len = new_top;
+ if (!keep)
+ cctx->ctx_locals.ga_len = new_top;
}
/*
@@ -81,7 +79,7 @@
void
free_locals(cctx_T *cctx)
{
- unwind_locals(cctx, 0);
+ unwind_locals(cctx, 0, FALSE);
ga_clear(&cctx->ctx_locals);
}
@@ -525,7 +523,7 @@
emsg(_(e_elseif_without_if));
return NULL;
}
- unwind_locals(cctx, scope->se_local_count);
+ unwind_locals(cctx, scope->se_local_count, TRUE);
if (!cctx->ctx_had_return)
scope->se_u.se_if.is_had_return = FALSE;
@@ -672,7 +670,7 @@
emsg(_(e_else_without_if));
return NULL;
}
- unwind_locals(cctx, scope->se_local_count);
+ unwind_locals(cctx, scope->se_local_count, TRUE);
if (!cctx->ctx_had_return)
scope->se_u.se_if.is_had_return = FALSE;
scope->se_u.se_if.is_seen_else = TRUE;
@@ -744,7 +742,7 @@
return NULL;
}
ifscope = &scope->se_u.se_if;
- unwind_locals(cctx, scope->se_local_count);
+ unwind_locals(cctx, scope->se_local_count, TRUE);
if (!cctx->ctx_had_return)
ifscope->is_had_return = FALSE;
@@ -1122,7 +1120,7 @@
if (compile_loop_end(&forscope->fs_loop_info, cctx) == FAIL)
return NULL;
- unwind_locals(cctx, scope->se_local_count);
+ unwind_locals(cctx, scope->se_local_count, FALSE);
// At end of ":for" scope jump back to the FOR instruction.
generate_JUMP(cctx, JUMP_ALWAYS, forscope->fs_top_label);
@@ -1249,7 +1247,7 @@
if (compile_loop_end(&whilescope->ws_loop_info, cctx) == FAIL)
return NULL;
- unwind_locals(cctx, scope->se_local_count);
+ unwind_locals(cctx, scope->se_local_count, FALSE);
#ifdef FEAT_PROFILE
// count the endwhile before jumping
@@ -1471,7 +1469,7 @@
scope_T *scope = cctx->ctx_scope;
cctx->ctx_scope = scope->se_outer;
- unwind_locals(cctx, scope->se_local_count);
+ unwind_locals(cctx, scope->se_local_count, TRUE);
vim_free(scope);
}