enum-stringclass-string narrowed to the name of an enum. An enum is a class as far
as the engine is concerned, so an analyzer that only checks class existence
accepts any class name here; modelling the spelling means knowing which
declarations are enums.
References:
- PHPStan TypeNodeResolver enum-string resolves to ClassStringType| Analyzer | Version | Result | Diagnostics |
|---|---|---|---|
| phan | 6.0.7Phan 6.0.7 php-ast version 1.1.3 PHP version used to run Phan: 8.5.9 | Unrecognized | phpdoc_advanced_fallback_enum_string.php:29: Saw a token Phan may have failed to parse after '* @return enum-string': after enum, saw '-' [PhanUnextractableAnnotationSuffix] phpdoc_advanced_fallback_enum_string.php:31: Return type of returnsEnumString() is undeclared type \Conformance\Tests\PhpdocAdvancedFallbackEnumString\enum [PhanUndeclaredTypeReturnType] phpdoc_advanced_fallback_enum_string.php:33: Returning SomeEnum::class of type string but returnsEnumString() is declared to return \Conformance\Tests\PhpdocAdvancedFallbackEnumString\enum (no real type) (the inferred real return type has nothing in common with the declared phpdoc return type) [PhanTypeMismatchReturnProbablyReal] phpdoc_advanced_fallback_enum_string.php:41: Saw possibly unextractable annotation for a fragment of comment '* @param enum-string $value': after enum, did not see an element name (will guess based on comment order) [PhanUnextractableAnnotationElementName] phpdoc_advanced_fallback_enum_string.php:41: Saw a token Phan may have failed to parse after '* @param enum-string $value': after enum, saw '-' [PhanUnextractableAnnotationSuffix] phpdoc_advanced_fallback_enum_string.php:43: Parameter $value has undeclared type \Conformance\Tests\PhpdocAdvancedFallbackEnumString\enum [PhanUndeclaredTypeParameter] phpdoc_advanced_fallback_enum_string.php:48: Argument 1 ($value) is returnsEnumString() of type \Conformance\Tests\PhpdocAdvancedFallbackEnumString\enum but \Conformance\Tests\PhpdocAdvancedFallbackEnumString\acceptsString() takes string defined at /Users/megurine/repo/php/php-typing-conformance/conformance/tests/phpdoc_advanced_fallback_enum_string.php:36 [PhanTypeMismatchArgument] phpdoc_advanced_fallback_enum_string.php:51: Argument 1 ($value) is SomeEnum::class of type string but \Conformance\Tests\PhpdocAdvancedFallbackEnumString\acceptsEnumString() takes \Conformance\Tests\PhpdocAdvancedFallbackEnumString\enum (no real type) defined at /Users/megurine/repo/php/php-typing-conformance/conformance/tests/phpdoc_advanced_fallback_enum_string.php:43 (the inferred real argument type has nothing in common with the parameter's phpdoc type) [PhanTypeMismatchArgumentProbablyReal] phpdoc_advanced_fallback_enum_string.php:54: Argument 1 ($value) is SomeClass::class of type string but \Conformance\Tests\PhpdocAdvancedFallbackEnumString\acceptsEnumString() takes \Conformance\Tests\PhpdocAdvancedFallbackEnumString\enum (no real type) defined at /Users/megurine/repo/php/php-typing-conformance/conformance/tests/phpdoc_advanced_fallback_enum_string.php:43 (the inferred real argument type has nothing in common with the parameter's phpdoc type) [PhanTypeMismatchArgumentProbablyReal]
Expectation diffLine 33: Expected valid value to be accepted, got ["Returning SomeEnum::class of type string but returnsEnumString() is declared to return \\Conformance\\Tests\\PhpdocAdvancedFallbackEnumString\\enum (no real type) (the inferred real return type has nothing in common with the declared phpdoc return type) [PhanTypeMismatchReturnProbablyReal]"] Line 48: Expected valid value to be accepted, got ["Argument 1 ($value) is returnsEnumString() of type \\Conformance\\Tests\\PhpdocAdvancedFallbackEnumString\\enum but \\Conformance\\Tests\\PhpdocAdvancedFallbackEnumString\\acceptsString() takes string defined at /Users/megurine/repo/php/php-typing-conformance/conformance/tests/phpdoc_advanced_fallback_enum_string.php:36 [PhanTypeMismatchArgument]"] Line 51: Expected valid value to be accepted, got ["Argument 1 ($value) is SomeEnum::class of type string but \\Conformance\\Tests\\PhpdocAdvancedFallbackEnumString\\acceptsEnumString() takes \\Conformance\\Tests\\PhpdocAdvancedFallbackEnumString\\enum (no real type) defined at /Users/megurine/repo/php/php-typing-conformance/conformance/tests/phpdoc_advanced_fallback_enum_string.php:43 (the inferred real argument type has nothing in common with the parameter's phpdoc type) [PhanTypeMismatchArgumentProbablyReal]"] |
| phpstan | 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 | Enforced reported Lv.5+ | phpdoc_advanced_fallback_enum_string.php:54: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedFallbackEnumString\acceptsEnumString expects class-string<UnitEnum>, string given. [identifier=argument.type] [reported-from-level=5] With strict-rulesphpdoc_advanced_fallback_enum_string.php:54: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedFallbackEnumString\acceptsEnumString expects class-string<UnitEnum>, string given. [identifier=argument.type]
|
| psalm | 6.16.1Psalm 6.16.1@f1f5de594dc76faf8784e02d3dc4716c91c6f6ac next: 7.0.0-beta19 |
Not enforced | No diagnostics reported.
|
| mago | 1.46.0mago 1.46.0 | Widened to class-string | No diagnostics reported.
|
| mir | 0.70.1mir 0.70.1 | Incidental (1/1) | phpdoc_advanced_fallback_enum_string.php:33: InvalidReturnType: Return type 'class-string<Conformance\Tests\PhpdocAdvancedFallbackEnumString\SomeEnum>' is not compatible with declared 'enum-string' [MIR0200] phpdoc_advanced_fallback_enum_string.php:51: InvalidArgument: Argument $value of acceptsEnumString() expects 'enum-string', got 'class-string<Conformance\Tests\PhpdocAdvancedFallbackEnumString\SomeEnum>' [MIR0201] phpdoc_advanced_fallback_enum_string.php:54: InvalidArgument: Argument $value of acceptsEnumString() expects 'enum-string', got 'class-string<Conformance\Tests\PhpdocAdvancedFallbackEnumString\SomeClass>' [MIR0201]
Expectation diffLine 33: Expected valid value to be accepted, got ["InvalidReturnType: Return type 'class-string<Conformance\\Tests\\PhpdocAdvancedFallbackEnumString\\SomeEnum>' is not compatible with declared 'enum-string' [MIR0200]"] Line 51: Expected valid value to be accepted, got ["InvalidArgument: Argument $value of acceptsEnumString() expects 'enum-string', got 'class-string<Conformance\\Tests\\PhpdocAdvancedFallbackEnumString\\SomeEnum>' [MIR0201]"] |
| phpantom | 0.9.0phpantom_lsp 0.9.0 | Not enforced | No diagnostics reported.
|
| intelephense | 1.18.5intelephense 1.18.5 | Widened to class-string | No diagnostics reported.
|
| phpy | 0.2.0phpy 0.2.0 | Not enforced | No diagnostics reported.
|
| qodana | 262.8665.325Qodana 262.8665.325 | Unrecognized | phpdoc_advanced_fallback_enum_string.php:29: Return type in PHPDoc does not match the actual return type [PhpReturnDocTypeMismatchInspection] phpdoc_advanced_fallback_enum_string.php:29: Undefined class 'enum-string' [PhpUndefinedClassInspection] phpdoc_advanced_fallback_enum_string.php:33: Return value type is not compatible with declared [PhpIncompatibleReturnTypeInspection] phpdoc_advanced_fallback_enum_string.php:41: Undefined class 'enum-string' [PhpUndefinedClassInspection] phpdoc_advanced_fallback_enum_string.php:51: Parameter 'SomeEnum::class' type is not compatible with declaration [PhpParamsInspection] phpdoc_advanced_fallback_enum_string.php:54: Parameter 'SomeClass::class' type is not compatible with declaration [PhpParamsInspection]
Expectation diffLine 33: Expected valid value to be accepted, got ["Return value type is not compatible with declared [PhpIncompatibleReturnTypeInspection]"] Line 51: Expected valid value to be accepted, got ["Parameter 'SomeEnum::class' type is not compatible with declaration [PhpParamsInspection]"] |
| noverify | 0.5.5NoVerify, version 0.5.5: built on: 2025.04.22 14:36:46 OS: r-kuchinskas arm64 Commit: 4774b82f8adc53fbef38f95e97af4b953b4d1529 | Unrecognized | phpdoc_advanced_fallback_enum_string.php:29: Class or interface named \Conformance\Tests\PhpdocAdvancedFallbackEnumString\enum-string does not exist [undefinedClass] phpdoc_advanced_fallback_enum_string.php:41: Class or interface named \Conformance\Tests\PhpdocAdvancedFallbackEnumString\enum-string does not exist [undefinedClass]
|
| steins | 0.1.5steins 0.1.5 (2026-08-12 revision 39b4cc1) | Widened to string | No diagnostics reported.
Notes: `enum-string` lowers to `ContractTy::StrOpaque` (ADR-0038), so Steins never checks that the string names an enum specifically — it accepts any string. |
| phpstan-strict | 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 | Enforced | phpdoc_advanced_fallback_enum_string.php:54: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedFallbackEnumString\acceptsEnumString expects class-string<UnitEnum>, string given. [identifier=argument.type]
|
| psalm-next | 7.0.0-beta19Psalm 7.0.0-beta19@7e751c06a756fa64dc4c759c09fe4a173afcb433 | Not enforced | No diagnostics reported.
|
<?php
declare(strict_types=1);
namespace Conformance\Tests\PhpdocAdvancedFallbackEnumString;
/**
* `enum-string`
*
* A `class-string` narrowed to the name of an enum. An enum is a class as far
* as the engine is concerned, so an analyzer that only checks class existence
* accepts any class name here; modelling the spelling means knowing which
* declarations are enums.
*
* References:
* - PHPStan TypeNodeResolver `enum-string` resolves to ClassStringType
*/
enum SomeEnum
{
case A;
}
final class SomeClass
{
}
/**
* @return enum-string
*/
function returnsEnumString() // T: enum-string
{
return SomeEnum::class; // V
}
function acceptsString(string $value): void
{
}
/**
* @param enum-string $value
*/
function acceptsEnumString($value): void // T: enum-string
{
}
// An `enum-string` value always satisfies a native `string` parameter.
acceptsString(returnsEnumString()); // V
// The name of an enum satisfies the parameter.
acceptsEnumString(SomeEnum::class); // V
// The name of an ordinary class does not.
acceptsEnumString(SomeClass::class); // E?: a class-string is not an enum-string