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PregMatchTypeSpecifyingExtension.php
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PregMatchTypeSpecifyingExtension.php
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<?php declare(strict_types=1);
namespace Composer\Pcre\PHPStan;
use Composer\Pcre\Preg;
use PhpParser\Node\Expr\StaticCall;
use PHPStan\Analyser\Scope;
use PHPStan\Analyser\SpecifiedTypes;
use PHPStan\Analyser\TypeSpecifier;
use PHPStan\Analyser\TypeSpecifierAwareExtension;
use PHPStan\Analyser\TypeSpecifierContext;
use PHPStan\Reflection\MethodReflection;
use PHPStan\TrinaryLogic;
use PHPStan\Type\Constant\ConstantArrayType;
use PHPStan\Type\Php\RegexArrayShapeMatcher;
use PHPStan\Type\StaticMethodTypeSpecifyingExtension;
use PHPStan\Type\TypeCombinator;
use PHPStan\Type\Type;
final class PregMatchTypeSpecifyingExtension implements StaticMethodTypeSpecifyingExtension, TypeSpecifierAwareExtension
{
/**
* @var TypeSpecifier
*/
private $typeSpecifier;
/**
* @var RegexArrayShapeMatcher
*/
private $regexShapeMatcher;
public function __construct(RegexArrayShapeMatcher $regexShapeMatcher)
{
$this->regexShapeMatcher = $regexShapeMatcher;
}
public function setTypeSpecifier(TypeSpecifier $typeSpecifier): void
{
$this->typeSpecifier = $typeSpecifier;
}
public function getClass(): string
{
return Preg::class;
}
public function isStaticMethodSupported(MethodReflection $methodReflection, StaticCall $node, TypeSpecifierContext $context): bool
{
return in_array($methodReflection->getName(), [
'match', 'isMatch', 'matchStrictGroups', 'isMatchStrictGroups',
'matchAll', 'isMatchAll', 'matchAllStrictGroups', 'isMatchAllStrictGroups'
], true)
&& !$context->null();
}
public function specifyTypes(MethodReflection $methodReflection, StaticCall $node, Scope $scope, TypeSpecifierContext $context): SpecifiedTypes
{
$args = $node->getArgs();
$patternArg = $args[0] ?? null;
$matchesArg = $args[2] ?? null;
$flagsArg = $args[3] ?? null;
if (
$patternArg === null || $matchesArg === null
) {
return new SpecifiedTypes();
}
$flagsType = PregMatchFlags::getType($flagsArg, $scope);
if ($flagsType === null) {
return new SpecifiedTypes();
}
if (stripos($methodReflection->getName(), 'matchAll') !== false) {
$matchedType = $this->regexShapeMatcher->matchAllExpr($patternArg->value, $flagsType, TrinaryLogic::createFromBoolean($context->true()), $scope);
} else {
$matchedType = $this->regexShapeMatcher->matchExpr($patternArg->value, $flagsType, TrinaryLogic::createFromBoolean($context->true()), $scope);
}
if ($matchedType === null) {
return new SpecifiedTypes();
}
if (
in_array($methodReflection->getName(), ['matchStrictGroups', 'isMatchStrictGroups', 'matchAllStrictGroups', 'isMatchAllStrictGroups'], true)
) {
$matchedType = PregMatchFlags::removeNullFromMatches($matchedType);
}
$overwrite = false;
if ($context->false()) {
$overwrite = true;
$context = $context->negate();
}
// @phpstan-ignore function.alreadyNarrowedType
if (method_exists('PHPStan\Analyser\SpecifiedTypes', 'setRootExpr')) {
$typeSpecifier = $this->typeSpecifier->create(
$matchesArg->value,
$matchedType,
$context,
$scope
)->setRootExpr($node);
return $overwrite ? $typeSpecifier->setAlwaysOverwriteTypes() : $typeSpecifier;
}
// @phpstan-ignore arguments.count
return $this->typeSpecifier->create(
$matchesArg->value,
$matchedType,
$context,
// @phpstan-ignore argument.type
$overwrite,
$scope,
$node
);
}
}

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Expires
Sun, Oct 4, 01:50 (4 w, 1 d ago)
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a6/28/1316505df45884a89a1df7445551
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PregMatchTypeSpecifyingExtension.php (3 KB)

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