Stdlib: glob() enum pattern operand — TypeError not silent empty array (ext/standard/dir.c)

[PurHur]

Category

stdlib

Problem

glob() accepts an enum case as the pattern argument on VM and returns array() (no match) instead of TypeError like Zend. Operand validation must reject TYPE_ENUM_CASE / enum objects before calling VmFsGlob::glob().

php-src reference

• php/php-src ext/standard/dir.c — PHP_FUNCTION(glob), Z_PARAM_STR on pattern
• php/php-src Zend/zend_API.h — typed parameter enforcement

Repro (verified 2026-06-04)

<?php
enum E { case A; }
try {
    var_export(glob(E::A));
    echo "\n";
} catch (Throwable $e) {
    echo $e::class, ': ', $e->getMessage(), "\n";
}

docker info >/dev/null
./script/docker-exec.sh -- bash -lc 'source script/php-env.sh
php repro.php
php bin/vm.php repro.php
'

Runtime	Result
Zend PHP 8.2	TypeError: glob(): Argument #1 ($pattern) must be of type string, E given
bin/vm.php	array () ❌

Scope (PHP-in-PHP)

Layer	Path
VM	ext/standard/glob_.php — use shared zend_string_param / enum guard (see #5673 chr pattern)
Core	lib/VM/BuiltinArgCheck.php or EnumCaseSupport::rejectObjectOperand()
JIT/AOT	ext/standard/JitFsGlob.php — same TypeError before native __phpc_glob_vec
C shrink	After VM parity, complete #5459 (delete phpc_fs_dir.c glob path)

Done when

• Repro throws TypeError on VM (message matches Zend shape)
• No silent coercion of enum case name to pattern string
• ./script/ci-fast.sh --filter glob_enum_pattern green

Related

• php-in-php: glob/scandir/chmod/touch — delete phpc_fs_dir.c (~760 lines), JIT from ext/standard/VmFsGlob.php #5459 php-in-php glob/scandir · Bootstrap: glob() — native path pattern matching without host \glob() (ext/standard/dir.c) #4859 glob FFI · Epic: Self-host critical path — compiler compiles itself (M3→M5) #1492

[PurHur]

claim: PHP Runtime → PHP — starting this run (#5732 glob enum pattern TypeError, pairs #5459 C shrink).

[PurHur]

Merged via #7533

Fix: glob() pattern operand uses VmString::coerceStringBuiltinArg() (VM) and JitStringBuiltinArg::lower() (JIT) — enum cases now throw TypeError matching Zend Z_PARAM_STR in ext/standard/dir.c.

Verification:
```bash
./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
php bin/jit.php test/repro-maintainer/parity_glob_enum_pattern.php
./vendor/bin/phpunit --filter glob_enum_pattern
'
```
→ TypeError on unit + backed enum patterns; VM/JIT parity; 2/2 PHPTs green.

Pairs with #5459 for remaining phpc_fs_dir.c glob path deletion.