patch 8.2.0504: Vim9: leaking scope memory when compilation fails
Problem: Vim9: leaking scope memory when compilation fails.
Solution: Cleanup the scope list.
diff --git a/src/vim9compile.c b/src/vim9compile.c
index 8366172..3ce04a1 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -3995,6 +3995,18 @@
}
}
+ static void
+compile_free_jump_to_end(endlabel_T **el)
+{
+ while (*el != NULL)
+ {
+ endlabel_T *cur = (*el);
+
+ *el = cur->el_next;
+ vim_free(cur);
+ }
+}
+
/*
* Create a new scope and set up the generic items.
*/
@@ -4026,6 +4038,20 @@
return;
}
cctx->ctx_scope = scope->se_outer;
+ switch (scope->se_type)
+ {
+ case IF_SCOPE:
+ compile_free_jump_to_end(&scope->se_u.se_if.is_end_label); break;
+ case FOR_SCOPE:
+ compile_free_jump_to_end(&scope->se_u.se_for.fs_end_label); break;
+ case WHILE_SCOPE:
+ compile_free_jump_to_end(&scope->se_u.se_while.ws_end_label); break;
+ case TRY_SCOPE:
+ compile_free_jump_to_end(&scope->se_u.se_try.ts_end_label); break;
+ case NO_SCOPE:
+ case BLOCK_SCOPE:
+ break;
+ }
vim_free(scope);
}
@@ -5519,6 +5545,9 @@
if (!dfunc->df_deleted)
--def_functions.ga_len;
+ while (cctx.ctx_scope != NULL)
+ drop_scope(&cctx);
+
// Don't execute this function body.
ga_clear_strings(&ufunc->uf_lines);