Add an assertion for the Y10K bug

hhvm · Jun 1, 2022 · 5271217 · 5271217
1 parent cc352bb
commit 5271217
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/__Private/is_compatible_schema_version.hack b/src/__Private/is_compatible_schema_version.hack
@@ -21,6 +21,12 @@ use namespace HH\Lib\Str;
  * Facebook\HHAST\SCHEMA_VERSION.
  */
 function is_compatible_schema_version(string $other_version): bool {
+  invariant(
+    Str\length($other_version) === Str\length(SCHEMA_VERSION) &&
+      Str\length($other_version) === Str\length(LATEST_BREAKING_SCHEMA_VERSION),
+    '%s needs updating or a Y10K bug occurs',
+    __FILE__,
+  );
   return Str\compare($other_version, SCHEMA_VERSION) <= 0 &&
     Str\compare($other_version, LATEST_BREAKING_SCHEMA_VERSION) >= 0;
 }