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A same-named class takes precedence over the integer pseudo-type keyword

Group: Advanced PHPDoc types · Category: ecosystem · File: phpdoc_advanced_pseudotype_class_precedence.php

When a class named Integer is in scope, @param Integer should resolve to that class, not to the int keyword. Analyzers with this fallback reject a plain int argument; analyzers that always read integer as int accept it. The same rule applies to boolean, double, number, resource, etc. References: - PHPStan TypeNodeResolver::tryResolvePseudoTypeClassType

Analyzer results

AnalyzerVersionResultDiagnostics
phan 6.0.7Phan 6.0.7 php-ast version 1.1.3 PHP version used to run Phan: 8.5.9 Incidental (0/1)
phpdoc_advanced_pseudotype_class_precedence.php:31: Argument 1 ($value) is new Integer() of type \Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\Integer but \Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\acceptsIntegerClass() takes int (no real type) defined at /Users/megurine/repo/php/php-typing-conformance/conformance/tests/phpdoc_advanced_pseudotype_class_precedence.php:26 (the inferred real argument type has nothing in common with the parameter's phpdoc type) [PhanTypeMismatchArgumentProbablyReal]
  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported — incidental, since values the type admits were also rejected on line(s) 31
Expectation diff
Line 31: Expected valid value to be accepted, got ["Argument 1 ($value) is new Integer() of type \\Conformance\\Tests\\PhpdocAdvancedPseudotypeClassPrecedence\\Integer but \\Conformance\\Tests\\PhpdocAdvancedPseudotypeClassPrecedence\\acceptsIntegerClass() takes int (no real type) defined at /Users/megurine/repo/php/php-typing-conformance/conformance/tests/phpdoc_advanced_pseudotype_class_precedence.php:26 (the inferred real argument type has nothing in common with the parameter's phpdoc type) [PhanTypeMismatchArgumentProbablyReal]"]

Notes: Resolves `@param Integer` as the `int` keyword rather than the same-named `Integer` class, so it rejects the class instance instead of the plain int. PHPStan, Psalm, and Mago resolve the class.

phpstan 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 Enforced reported Lv.5+
phpdoc_advanced_pseudotype_class_precedence.php:35: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\acceptsIntegerClass expects Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\Integer, int given. [identifier=argument.type] [reported-from-level=5]
With strict-rules
phpdoc_advanced_pseudotype_class_precedence.php:35: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\acceptsIntegerClass expects Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\Integer, int given. [identifier=argument.type]
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
psalm 6.16.1Psalm 6.16.1@f1f5de594dc76faf8784e02d3dc4716c91c6f6ac
next: 7.0.0-beta19
Enforced
phpdoc_advanced_pseudotype_class_precedence.php:35: Argument 1 of Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\acceptsIntegerClass expects Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\Integer, but 5 provided [InvalidArgument]
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
mago 1.46.0mago 1.46.0 Enforced
phpdoc_advanced_pseudotype_class_precedence.php:35: Invalid argument type for argument #1 of `Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\acceptsIntegerClass`: expected `Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\Integer`, but found `int(5)`. [invalid-argument]
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
mir 0.70.1mir 0.70.1 Incidental (0/1)
phpdoc_advanced_pseudotype_class_precedence.php:31: InvalidArgument: Argument $value of acceptsIntegerClass() expects 'int', got 'Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\Integer' [MIR0201]
  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported — incidental, since values the type admits were also rejected on line(s) 31
Expectation diff
Line 31: Expected valid value to be accepted, got ["InvalidArgument: Argument $value of acceptsIntegerClass() expects 'int', got 'Conformance\\Tests\\PhpdocAdvancedPseudotypeClassPrecedence\\Integer' [MIR0201]"]

Notes: Resolves `@param Integer` as the `int` keyword rather than the same-named `Integer` class, so it rejects the class instance instead of the plain int. PHPStan, Psalm, and Mago resolve the class.

phpantom 0.9.0phpantom_lsp 0.9.0 Incidental (0/1)
phpdoc_advanced_pseudotype_class_precedence.php:31: Argument 1 ($value) expects int, got Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\Integer [type_mismatch_argument]
  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported — incidental, since values the type admits were also rejected on line(s) 31
Expectation diff
Line 31: Expected valid value to be accepted, got ["Argument 1 ($value) expects int, got Conformance\\Tests\\PhpdocAdvancedPseudotypeClassPrecedence\\Integer [type_mismatch_argument]"]
intelephense 1.18.5intelephense 1.18.5 Not enforced

No diagnostics reported.

  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported
phpy 0.2.0phpy 0.2.0 Enforced
phpdoc_advanced_pseudotype_class_precedence.php:35: Argument '1' passed to Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\acceptsIntegerClass() is expected to be of type Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\Integer, int given
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
qodana 262.8665.325Qodana 262.8665.325 Enforced
phpdoc_advanced_pseudotype_class_precedence.php:35: Parameter '5' type is not compatible with declaration [PhpParamsInspection]
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
noverify 0.5.5NoVerify, version 0.5.5: built on: 2025.04.22 14:36:46 OS: r-kuchinskas arm64 Commit: 4774b82f8adc53fbef38f95e97af4b953b4d1529 Not enforced

No diagnostics reported.

  • Recognition: spelling resolved
  • Enforcement: 0/1 of the expected violations reported
steins 0.1.5steins 0.1.5 (2026-08-12 revision 39b4cc1) Enforced
phpdoc_advanced_pseudotype_class_precedence.php:35: argument 5 to acceptsIntegerClass() violates declared @param Integer $value — declared contract violation [phpdoc.param-mismatch]
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
phpstan-strict 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 Enforced
phpdoc_advanced_pseudotype_class_precedence.php:35: Parameter #1 $value of function Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\acceptsIntegerClass expects Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\Integer, int given. [identifier=argument.type]
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported
psalm-next 7.0.0-beta19Psalm 7.0.0-beta19@7e751c06a756fa64dc4c759c09fe4a173afcb433 Enforced
phpdoc_advanced_pseudotype_class_precedence.php:35: Argument 1 of Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\acceptsIntegerClass expects Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence\Integer, but 5 provided [InvalidArgument]
  • Recognition: spelling resolved
  • Enforcement: 1/1 of the expected violations reported

Source

<?php

declare(strict_types=1);

namespace Conformance\Tests\PhpdocAdvancedPseudotypeClassPrecedence;

/**
 * A same-named class takes precedence over the `integer` pseudo-type keyword.
 *
 * When a class named `Integer` is in scope, `@param Integer` should resolve to
 * that class, not to the `int` keyword. Analyzers with this fallback reject a
 * plain `int` argument; analyzers that always read `integer` as `int` accept
 * it. The same rule applies to `boolean`, `double`, `number`, `resource`, etc.
 *
 * References:
 * - PHPStan TypeNodeResolver::tryResolvePseudoTypeClassType
 */

final class Integer
{
}

/**
 * @param Integer $value
 */
function acceptsIntegerClass($value): void // T: Integer (same-named class vs integer keyword)
{
}

// An `Integer` instance satisfies the class-resolved parameter.
acceptsIntegerClass(new Integer()); // V

// A plain int is not an `Integer` instance for analyzers that resolve the
// same-named class; keyword-only analyzers accept it as `int`.
acceptsIntegerClass(5); // E?: int should be rejected where @param Integer resolves to the class