Stdlib: error_reporting()/trigger_error() — enum case operands must TypeError (ext/standard/basic_functions.c)

Problem

Enum case objects passed to error-level/message builtins are coerced (backing int/string) instead of throwing TypeError like Zend.

php-src reference

ext/standard/basic_functions.c — PHP_FUNCTION(error_reporting), PHP_FUNCTION(trigger_error) / user_error
Enum objects are not valid ?int or string operands

Repro

<?php
enum L: int { case ALL = E_ALL; }
enum M: string { case MSG = 'user warning'; }

try { error_reporting(L::ALL); } catch (Throwable $e) { echo 'error_reporting: ', get_class($e), ': ', $e->getMessage(), "\n"; }
try { trigger_error(M::MSG, E_USER_WARNING); } catch (Throwable $e) { echo 'trigger_error: ', get_class($e), ': ', $e->getMessage(), "\n"; }

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

Call	Zend PHP 8.3+	This compiler VM
`error_reporting(L::ALL)`	`TypeError` (`?int` expected)	accepts, sets level
`trigger_error(M::MSG, …)`	`TypeError` (string expected)	emits `PHP Warning: user warning`

Scope (PHP-in-PHP)

Layer	Path
VM	`ext/standard/error_reporting.php`, `trigger_error.php`, `user_error.php`
JIT	matching lowering if present
Tests	`test/compliance/cases/stdlib/error_builtin_enum_operand.phpt`

Done when

Both repro calls throw TypeError on VM (php-src-strict)
user_error() shares the same message-operand guard
Targeted compliance green

Regression: set_error_handler() — enum case callback accepted (re-#6234, basic_functions.c) #8784 (set_error_handler enum) · Stdlib: htmlspecialchars()/htmlentities()/urldecode()/rawurldecode()/mb_convert_encoding() — enum operands must TypeError (string.c, mbstring.c) #8997 (string builtin enum guards)

claim: PHP Compiler STD Lib — starting this run

Unclaiming: repro is already green on master (VM+JIT). Compliance tests exist: error_reporting_enum_typeerror*.phpt (#5917), trigger_error_enum_case*.phpt (#6184), user_error_enum_case.phpt (#6183). Switching to #9084 (sleep/usleep/time_nanosleep enum guards).

claim: cursor-agent-lane-c — starting this run (trigger_error enum error_level TypeError gap; #9086)

Stdlib: trigger_error() enum error_level TypeError (#9086) (#18272)

Merged via PR #18272.

Root cause: trigger_error() VM path used a manual TYPE_INTEGER check that threw LogicException; JIT used raw jitLong() without enum guards. Message-operand enum rejection was already fixed (#6184); error_level enum operand was the remaining gap.

Fix: Route error_level through VmMath::parseIntBuiltinArgForFrame() (VM) and JitIntdiv::lowerIntBuiltinArgForCaller() (JIT).

Verification:

php bin/vm.php test/repro/maintainer_gap_trigger_error_enum_error_level.php
# trigger_error(): Argument #2 ($error_level) must be of type int, E given

php bin/jit.php test/repro/maintainer_gap_trigger_error_enum_error_level.php
# trigger_error(): Argument #2 ($error_level) must be of type int, E given

php bin/vm.php test/compliance/cases/stdlib/trigger_error_enum_error_level.phpt
php bin/jit.php test/compliance/cases/stdlib/trigger_error_enum_error_level_jit.phpt

make bootstrap-selfhost-vm-driver-execute-probe
# OK

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Stdlib: error_reporting()/trigger_error() — enum case operands must TypeError (ext/standard/basic_functions.c) #9086

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Stdlib: error_reporting()/trigger_error() — enum case operands must TypeError (ext/standard/basic_functions.c) #9086

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php-src reference

Repro

Scope (PHP-in-PHP)

Done when

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PurHur commented on Jun 16, 2026

PurHur commented on Jun 16, 2026

PurHur commented on Jul 12, 2026

PurHur commented on Jul 12, 2026

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