Support for HHVM 3.18

Author: fredemmott

examples/dorm/demo/DormUserMutator.php

@@ -6,7 +6,7 @@
  * To re-generate this file run codegen.php DormUserSchema
  *
  *
- * @partially-generated SignedSource<<aed81933eb3016547905627d230a9d5a>>
+ * @partially-generated SignedSource<<9c1db5953912e41368e01d1425f6d968>>
  */
 
 final class DormUserMutator {
@@ -62,7 +62,8 @@ public function checkRequiredFields(): void {
     $missing = $required->removeAll($this->data->keys());;
     invariant(
       $missing->isEmpty(),
-      "The following required fields are missing: ".implode(", ", $missing),
+      "The following required fields are missing: %s",
+      implode(", ", $missing),
     );
   }
 

test/CodegenBaseTest.php

@@ -16,14 +16,14 @@ public static function assertTrue(
     bool $value,
     string $message = 'Expected true',
   ): void {
-    invariant($value, $message);
+    invariant($value, '%s', $message);
   }
 
   public static function assertFalse(
     bool $value,
     string $message = 'Expected false',
   ): void {
-    invariant(!$value, $message);
+    invariant(!$value, '%s', $message);
   }
 
   public static function assertEquals(
@@ -35,7 +35,7 @@ public static function assertEquals(
        $message = "Expected ".print_r($expected, true).
          " but got ".print_r($actual, true). " instead";
     }
-    invariant($expected === $actual, $message);
+    invariant($expected === $actual, '%s', $message);
   }