Regression: glob() enum pattern operand — silent empty array not TypeError (re-#5732, dir.c)

[PurHur]

Category

stdlib | php-src-strict

Problem

#5732 landed but regressed: glob() with an enum case $pattern returns an empty array instead of throwing TypeError. Zend rejects non-string patterns before filesystem lookup.

php-src reference

• php/php-src ext/standard/dir.c — php_glob() / Z_PARAM_STR on $pattern
• php/php-src ext/standard/basic_functions.stub.php — function glob(string $pattern, ...)

Repro

test/repro-maintainer/parity_glob_enum_pattern.php:

<?php
declare(strict_types=1);
enum E { case A; }
enum Es: string { case P = '*.txt'; }
foreach ([E::A, Es::P] as $pattern) {
    try {
        var_export(glob($pattern));
        echo "\nuncaught\n";
    } catch (Throwable $e) {
        echo get_class($e), ': ', $e->getMessage(), "\n";
    }
}

./script/docker-exec.sh -- bash -lc 'source script/php-env.sh
php test/repro-maintainer/parity_glob_enum_pattern.php
php bin/vm.php test/repro-maintainer/parity_glob_enum_pattern.php'

Runtime	Result
Zend	TypeError: glob(): Argument #1 ($pattern) must be of type string, E given (and same for Es)
VM today	array () + uncaught (no exception)

Scope (this repo)

Path	Work
ext/standard/glob.php	Reject enum operands via VmString::requireStringBuiltinArg (not coerce / not empty-array fallback)
lib/JIT/Builtin/*Glob*	Mirror strict string check when JIT lowering exists
Tests	test/compliance/cases/stdlib/glob_enum_pattern.phpt

PHP-in-PHP: fix operand guard in ext/standard; do not add C branches in runtime/.

Done when

• Repro prints TypeError for both pure and backed enum cases (no uncaught)
• Valid string patterns still return matches / empty array per Zend
• JIT/AOT parity when glob JIT exists (or matrix notes VM-only deferral)
• ./script/ci-fast.sh --filter glob_enum green

Related

#5732 (closed) · #7405 (php-in-php glob vec) · #1492

[PurHur]

Stale-close (lane A audit 2026-06-23): repro green on master — verified this worker run. See audit comment on #10290. Recommend close.

[PurHur]

Closing: repro green on master (lane A verification 2026-06-23).