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UnionTypeTest.php
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UnionTypeTest.php
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<?php declare(strict_types = 1);
namespace PHPStan\Type;
use DateTime;
use DateTimeImmutable;
use Exception;
use Iterator;
use PHPStan\Reflection\Native\NativeParameterReflection;
use PHPStan\Reflection\PassedByReference;
use PHPStan\Testing\PHPStanTestCase;
use PHPStan\TrinaryLogic;
use PHPStan\Type\Accessory\AccessoryNumericStringType;
use PHPStan\Type\Accessory\HasMethodType;
use PHPStan\Type\Accessory\HasOffsetType;
use PHPStan\Type\Accessory\HasPropertyType;
use PHPStan\Type\Accessory\NonEmptyArrayType;
use PHPStan\Type\Constant\ConstantArrayType;
use PHPStan\Type\Constant\ConstantBooleanType;
use PHPStan\Type\Constant\ConstantFloatType;
use PHPStan\Type\Constant\ConstantIntegerType;
use PHPStan\Type\Constant\ConstantStringType;
use PHPStan\Type\Generic\GenericClassStringType;
use PHPStan\Type\Generic\GenericObjectType;
use PHPStan\Type\Generic\TemplateTypeFactory;
use PHPStan\Type\Generic\TemplateTypeScope;
use PHPStan\Type\Generic\TemplateTypeVariance;
use stdClass;
use function array_map;
use function array_merge;
use function array_reverse;
use function get_class;
use function implode;
use function sprintf;
class UnionTypeTest extends PHPStanTestCase
{
public function dataIsCallable(): array
{
return [
[
TypeCombinator::union(
new ConstantArrayType(
[new ConstantIntegerType(0), new ConstantIntegerType(1)],
[new ConstantStringType('Closure'), new ConstantStringType('bind')],
),
new ConstantStringType('array_push'),
),
TrinaryLogic::createYes(),
],
[
new UnionType([
new ArrayType(new MixedType(), new MixedType()),
new StringType(),
]),
TrinaryLogic::createMaybe(),
],
[
new UnionType([
new ArrayType(new MixedType(), new MixedType()),
new ObjectType('Closure'),
]),
TrinaryLogic::createMaybe(),
],
[
new UnionType([
new StringType(),
new IntegerType(),
]),
TrinaryLogic::createMaybe(),
],
];
}
/**
* @dataProvider dataIsCallable
*/
public function testIsCallable(UnionType $type, TrinaryLogic $expectedResult): void
{
$actualResult = $type->isCallable();
$this->assertSame(
$expectedResult->describe(),
$actualResult->describe(),
sprintf('%s -> isCallable()', $type->describe(VerbosityLevel::precise())),
);
}
public function dataSelfCompare(): Iterator
{
$reflectionProvider = $this->createReflectionProvider();
$integerType = new IntegerType();
$stringType = new StringType();
$mixedType = new MixedType();
$constantStringType = new ConstantStringType('foo');
$constantIntegerType = new ConstantIntegerType(42);
$templateTypeScope = TemplateTypeScope::createWithClass('Foo');
$mixedParam = new NativeParameterReflection('foo', false, $mixedType, PassedByReference::createNo(), false, null);
$integerParam = new NativeParameterReflection('n', false, $integerType, PassedByReference::createNo(), false, null);
yield [new AccessoryNumericStringType()];
yield [new ArrayType($integerType, $stringType)];
yield [new ArrayType($stringType, $mixedType)];
yield [new BenevolentUnionType([$integerType, $stringType])];
yield [new BooleanType()];
yield [new CallableType()];
yield [new CallableType([$mixedParam, $integerParam], $stringType, false)];
yield [new ClassStringType()];
yield [new ClosureType([$mixedParam, $integerParam], $stringType, false)];
yield [new ConstantArrayType([$constantStringType, $constantIntegerType], [$mixedType, $stringType], 10, [1])];
yield [new ConstantBooleanType(true)];
yield [new ConstantFloatType(3.14)];
yield [$constantIntegerType];
yield [$constantStringType];
yield [new ErrorType()];
yield [new FloatType()];
yield [new GenericClassStringType(new ObjectType(Exception::class))];
yield [new GenericObjectType('Foo', [new ObjectType('DateTime')])];
yield [new HasMethodType('Foo')];
yield [new HasOffsetType($constantStringType)];
yield [new HasPropertyType('foo')];
yield [IntegerRangeType::fromInterval(3, 10)];
yield [$integerType];
yield [new IntersectionType([new HasMethodType('Foo'), new HasPropertyType('bar')])];
yield [new IterableType($integerType, $stringType)];
yield [$mixedType];
yield [new NeverType()];
yield [new NonEmptyArrayType()];
yield [new NonexistentParentClassType()];
yield [new NullType()];
yield [new ObjectType('Foo')];
yield [new ObjectWithoutClassType(new ObjectType('Foo'))];
yield [new ResourceType()];
yield [new StaticType($reflectionProvider->getClass('Foo'))];
yield [new StrictMixedType()];
yield [new StringAlwaysAcceptingObjectWithToStringType()];
yield [$stringType];
yield [TemplateTypeFactory::create($templateTypeScope, 'T', null, TemplateTypeVariance::createInvariant())];
yield [TemplateTypeFactory::create($templateTypeScope, 'T', new ObjectType('Foo'), TemplateTypeVariance::createInvariant())];
yield [TemplateTypeFactory::create($templateTypeScope, 'T', new ObjectWithoutClassType(), TemplateTypeVariance::createInvariant())];
yield [new ThisType($reflectionProvider->getClass('Foo'))];
yield [new UnionType([$integerType, $stringType])];
yield [new VoidType()];
}
/**
* @dataProvider dataSelfCompare
*
*/
public function testSelfCompare(Type $type): void
{
$description = $type->describe(VerbosityLevel::precise());
$this->assertTrue(
$type->equals($type),
sprintf('%s -> equals(itself)', $description),
);
$this->assertEquals(
'Yes',
$type->isSuperTypeOf($type)->describe(),
sprintf('%s -> isSuperTypeOf(itself)', $description),
);
$this->assertInstanceOf(
get_class($type),
TypeCombinator::union($type, $type),
sprintf('%s -> union with itself is same type', $description),
);
}
public function dataIsSuperTypeOf(): Iterator
{
$unionTypeA = new UnionType([
new IntegerType(),
new StringType(),
]);
yield [
$unionTypeA,
$unionTypeA->getTypes()[0],
TrinaryLogic::createYes(),
];
yield [
$unionTypeA,
$unionTypeA->getTypes()[1],
TrinaryLogic::createYes(),
];
yield [
$unionTypeA,
$unionTypeA,
TrinaryLogic::createYes(),
];
yield [
$unionTypeA,
new IntersectionType([new StringType(), new CallableType()]),
TrinaryLogic::createYes(),
];
yield [
$unionTypeA,
new MixedType(),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new CallableType(),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new UnionType([new IntegerType(), new FloatType()]),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new UnionType([new CallableType(), new FloatType()]),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new IntersectionType([new MixedType(), new CallableType()]),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new FloatType(),
TrinaryLogic::createNo(),
];
yield [
$unionTypeA,
new UnionType([new ConstantBooleanType(true), new FloatType()]),
TrinaryLogic::createNo(),
];
yield [
$unionTypeA,
new IterableType(new MixedType(), new MixedType()),
TrinaryLogic::createNo(),
];
yield [
$unionTypeA,
new IntersectionType([new ArrayType(new MixedType(), new MixedType()), new CallableType()]),
TrinaryLogic::createNo(),
];
$unionTypeB = new UnionType([
new IntersectionType([
new ObjectType('ArrayObject'),
new IterableType(new MixedType(), new ObjectType('DatePeriod')),
]),
new ArrayType(new MixedType(), new ObjectType('DatePeriod')),
]);
yield [
$unionTypeB,
$unionTypeB->getTypes()[0],
TrinaryLogic::createYes(),
];
yield [
$unionTypeB,
$unionTypeB->getTypes()[1],
TrinaryLogic::createYes(),
];
yield [
$unionTypeB,
$unionTypeB,
TrinaryLogic::createYes(),
];
yield [
$unionTypeB,
new MixedType(),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeB,
new ObjectType('ArrayObject'),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeB,
new IterableType(new MixedType(), new ObjectType('DatePeriod')),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeB,
new IterableType(new MixedType(), new MixedType()),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeB,
new StringType(),
TrinaryLogic::createNo(),
];
yield [
$unionTypeB,
new IntegerType(),
TrinaryLogic::createNo(),
];
yield [
$unionTypeB,
new ObjectType(stdClass::class),
TrinaryLogic::createNo(),
];
yield [
$unionTypeB,
new IterableType(new MixedType(), new ObjectType('DateTime')),
TrinaryLogic::createNo(),
];
yield [
$unionTypeB,
new CallableType(),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeB,
new IntersectionType([new MixedType(), new CallableType()]),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeB,
new IntersectionType([new StringType(), new CallableType()]),
TrinaryLogic::createNo(),
];
yield 'is super type of template-of-union equal to a union member' => [
new UnionType([
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new UnionType([
new IntegerType(),
new FloatType(),
]),
TemplateTypeVariance::createInvariant(),
),
new NullType(),
]),
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new UnionType([
new IntegerType(),
new FloatType(),
]),
TemplateTypeVariance::createInvariant(),
),
TrinaryLogic::createYes(),
];
yield 'maybe super type of template-of-union equal to a union member' => [
new UnionType([
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new UnionType([
new IntegerType(),
new FloatType(),
]),
TemplateTypeVariance::createInvariant(),
),
new NullType(),
]),
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Bar'),
'T',
new UnionType([
new IntegerType(),
new FloatType(),
]),
TemplateTypeVariance::createInvariant(),
),
TrinaryLogic::createMaybe(),
];
yield 'is super type of template-of-string equal to a union member' => [
new UnionType([
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new StringType(),
TemplateTypeVariance::createInvariant(),
),
new NullType(),
]),
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new StringType(),
TemplateTypeVariance::createInvariant(),
),
TrinaryLogic::createYes(),
];
yield 'maybe super type of template-of-string sub type of a union member' => [
new UnionType([
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new StringType(),
TemplateTypeVariance::createInvariant(),
),
new NullType(),
]),
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Bar'),
'T',
new StringType(),
TemplateTypeVariance::createInvariant(),
),
TrinaryLogic::createMaybe(),
];
}
/**
* @dataProvider dataIsSuperTypeOf
*/
public function testIsSuperTypeOf(UnionType $type, Type $otherType, TrinaryLogic $expectedResult): void
{
$actualResult = $type->isSuperTypeOf($otherType);
$this->assertSame(
$expectedResult->describe(),
$actualResult->describe(),
sprintf('%s -> isSuperTypeOf(%s)', $type->describe(VerbosityLevel::precise()), $otherType->describe(VerbosityLevel::precise())),
);
}
public function dataIsSubTypeOf(): Iterator
{
$unionTypeA = new UnionType([
new IntegerType(),
new StringType(),
]);
yield [
$unionTypeA,
$unionTypeA,
TrinaryLogic::createYes(),
];
yield [
$unionTypeA,
new UnionType(array_merge($unionTypeA->getTypes(), [new ResourceType()])),
TrinaryLogic::createYes(),
];
yield [
$unionTypeA,
new MixedType(),
TrinaryLogic::createYes(),
];
yield [
$unionTypeA,
$unionTypeA->getTypes()[0],
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
$unionTypeA->getTypes()[1],
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new CallableType(),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new UnionType([new IntegerType(), new FloatType()]),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new UnionType([new CallableType(), new FloatType()]),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new IntersectionType([new StringType(), new CallableType()]),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new IntersectionType([new MixedType(), new CallableType()]),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeA,
new FloatType(),
TrinaryLogic::createNo(),
];
yield [
$unionTypeA,
new UnionType([new ConstantBooleanType(true), new FloatType()]),
TrinaryLogic::createNo(),
];
yield [
$unionTypeA,
new IterableType(new MixedType(), new MixedType()),
TrinaryLogic::createNo(),
];
yield [
$unionTypeA,
new IntersectionType([new ArrayType(new MixedType(), new MixedType()), new CallableType()]),
TrinaryLogic::createNo(),
];
$unionTypeB = new UnionType([
new IntersectionType([
new ObjectType('ArrayObject'),
new IterableType(new MixedType(), new ObjectType('Item')),
new CallableType(),
]),
new ArrayType(new MixedType(), new ObjectType('Item')),
]);
yield [
$unionTypeB,
$unionTypeB,
TrinaryLogic::createYes(),
];
yield [
$unionTypeB,
new UnionType(array_merge($unionTypeB->getTypes(), [new StringType()])),
TrinaryLogic::createYes(),
];
yield [
$unionTypeB,
new MixedType(),
TrinaryLogic::createYes(),
];
yield [
$unionTypeB,
$unionTypeB->getTypes()[0],
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeB,
$unionTypeB->getTypes()[1],
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeB,
new ObjectType('ArrayObject'),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeB,
new CallableType(),
TrinaryLogic::createMaybe(),
];
yield [
$unionTypeB,
new FloatType(),
TrinaryLogic::createNo(),
];
yield [
$unionTypeB,
new ObjectType(stdClass::class),
TrinaryLogic::createNo(),
];
}
/**
* @dataProvider dataIsSubTypeOf
*/
public function testIsSubTypeOf(UnionType $type, Type $otherType, TrinaryLogic $expectedResult): void
{
$actualResult = $type->isSubTypeOf($otherType);
$this->assertSame(
$expectedResult->describe(),
$actualResult->describe(),
sprintf('%s -> isSubTypeOf(%s)', $type->describe(VerbosityLevel::precise()), $otherType->describe(VerbosityLevel::precise())),
);
}
/**
* @dataProvider dataIsSubTypeOf
*/
public function testIsSubTypeOfInversed(UnionType $type, Type $otherType, TrinaryLogic $expectedResult): void
{
$actualResult = $otherType->isSuperTypeOf($type);
$this->assertSame(
$expectedResult->describe(),
$actualResult->describe(),
sprintf('%s -> isSuperTypeOf(%s)', $otherType->describe(VerbosityLevel::precise()), $type->describe(VerbosityLevel::precise())),
);
}
public function dataDescribe(): array
{
return [
[
new UnionType([new IntegerType(), new StringType()]),
'int|string',
'int|string',
],
[
new UnionType([new IntegerType(), new StringType(), new NullType()]),
'int|string|null',
'int|string|null',
],
[
new UnionType([
new ConstantStringType('1aaa'),
new ConstantStringType('11aaa'),
new ConstantStringType('2aaa'),
new ConstantStringType('10aaa'),
new ConstantIntegerType(2),
new ConstantIntegerType(1),
new ConstantIntegerType(10),
new ConstantFloatType(2.2),
new NullType(),
new ConstantStringType('10'),
new ObjectType(stdClass::class),
new ConstantBooleanType(true),
new ConstantStringType('foo'),
new ConstantStringType('2'),
new ConstantStringType('1'),
]),
"1|2|2.2|10|'1'|'10'|'10aaa'|'11aaa'|'1aaa'|'2'|'2aaa'|'foo'|stdClass|true|null",
'float|int|stdClass|string|true|null',
],
[
TypeCombinator::union(
new ConstantArrayType([
new ConstantStringType('a'),
new ConstantStringType('b'),
], [
new StringType(),
new BooleanType(),
]),
new ConstantArrayType([
new ConstantStringType('a'),
new ConstantStringType('b'),
], [
new IntegerType(),
new FloatType(),
]),
new ConstantStringType('aaa'),
),
'\'aaa\'|array{a: int|string, b: bool|float}',
'array<string, bool|float|int|string>|string',
],
[
TypeCombinator::union(
new ConstantArrayType([
new ConstantStringType('a'),
new ConstantStringType('b'),
], [
new StringType(),
new BooleanType(),
]),
new ConstantArrayType([
new ConstantStringType('b'),
new ConstantStringType('c'),
], [
new IntegerType(),
new FloatType(),
]),
new ConstantStringType('aaa'),
),
'\'aaa\'|array{a: string, b: bool}|array{b: int, c: float}',
'array<string, bool|float|int|string>|string',
],
[
TypeCombinator::union(
new ConstantArrayType([
new ConstantStringType('a'),
new ConstantStringType('b'),
], [
new StringType(),
new BooleanType(),
]),
new ConstantArrayType([
new ConstantStringType('c'),
new ConstantStringType('d'),
], [
new IntegerType(),
new FloatType(),
]),
new ConstantStringType('aaa'),
),
'\'aaa\'|array{a: string, b: bool}|array{c: int, d: float}',
'array<string, bool|float|int|string>|string',
],
[
TypeCombinator::union(
new ConstantArrayType([
new ConstantIntegerType(0),
], [
new StringType(),
]),
new ConstantArrayType([
new ConstantIntegerType(0),
new ConstantIntegerType(1),
new ConstantIntegerType(2),
], [
new IntegerType(),
new BooleanType(),
new FloatType(),
]),
),
'array{0: int|string, 1?: bool, 2?: float}',
'array<int, bool|float|int|string>',
],
[
TypeCombinator::union(
new ConstantArrayType([], []),
new ConstantArrayType([
new ConstantStringType('foooo'),
], [
new ConstantStringType('barrr'),
]),
),
'array{}|array{foooo: \'barrr\'}',
'array<string, string>',
],
[
TypeCombinator::union(
new IntegerType(),
new IntersectionType([
new StringType(),
new AccessoryNumericStringType(),
]),
),
'int|numeric-string',
'int|string',
],
[
TypeCombinator::union(
IntegerRangeType::fromInterval(0, 4),
IntegerRangeType::fromInterval(6, 10),
),
'int<0, 4>|int<6, 10>',
'int<0, 4>|int<6, 10>',
],
];
}
/**
* @dataProvider dataDescribe
*/
public function testDescribe(
Type $type,
string $expectedValueDescription,
string $expectedTypeOnlyDescription,
): void
{
$this->assertSame($expectedValueDescription, $type->describe(VerbosityLevel::value()));
$this->assertSame($expectedTypeOnlyDescription, $type->describe(VerbosityLevel::typeOnly()));
}
public function dataAccepts(): array
{
return [
[
new UnionType([new CallableType(), new NullType()]),
new ClosureType([], new StringType(), false),
TrinaryLogic::createYes(),
],
[
new UnionType([new CallableType(), new NullType()]),
new UnionType([new ClosureType([], new StringType(), false), new BooleanType()]),
TrinaryLogic::createMaybe(),
],
[
new UnionType([new CallableType(), new NullType()]),
new BooleanType(),
TrinaryLogic::createNo(),
],
[
new UnionType([
new CallableType([
new NativeParameterReflection('a', false, new IntegerType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new StringType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new StringType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new ArrayType(new MixedType(), new MixedType()), PassedByReference::createNo(), false, null),
], new BooleanType(), false),
new NullType(),
]),
new CallableType(),
TrinaryLogic::createYes(),
],
[
new UnionType([
new CallableType([
new NativeParameterReflection('a', false, new IntegerType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new StringType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new StringType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new ArrayType(new MixedType(), new MixedType()), PassedByReference::createNo(), false, null),
], new BooleanType(), false),
new NullType(),
]),
new BooleanType(),
TrinaryLogic::createNo(),
],
[
new UnionType([
new ClosureType([
new NativeParameterReflection('a', false, new IntegerType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new StringType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new StringType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new ArrayType(new MixedType(), new MixedType()), PassedByReference::createNo(), false, null),
], new BooleanType(), false),
new NullType(),
]),
new CallableType(),
TrinaryLogic::createMaybe(),
],
[
new UnionType([
new ClosureType([
new NativeParameterReflection('a', false, new IntegerType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new StringType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new StringType(), PassedByReference::createNo(), false, null),
new NativeParameterReflection('a', false, new ArrayType(new MixedType(), new MixedType()), PassedByReference::createNo(), false, null),
], new BooleanType(), false),
new NullType(),
]),
new ClosureType([], new MixedType(), false),
TrinaryLogic::createYes(),
],
'accepts template-of-union equal to a union member' => [
new UnionType([
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new UnionType([
new IntegerType(),
new FloatType(),
]),
TemplateTypeVariance::createInvariant(),
),
new NullType(),
]),
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new UnionType([
new IntegerType(),
new FloatType(),
]),
TemplateTypeVariance::createInvariant(),
),
TrinaryLogic::createYes(),
],
'maybe accepts template-of-union sub type of a union member' => [
new UnionType([
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new UnionType([
new IntegerType(),
new FloatType(),
]),
TemplateTypeVariance::createInvariant(),
),
new NullType(),
]),
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Bar'),
'T',
new UnionType([
new IntegerType(),
new FloatType(),
]),
TemplateTypeVariance::createInvariant(),
),
TrinaryLogic::createMaybe(),
],
'accepts template-of-string equal to a union member' => [
new UnionType([
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new StringType(),
TemplateTypeVariance::createInvariant(),
),
new NullType(),
]),
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new StringType(),
TemplateTypeVariance::createInvariant(),
),
TrinaryLogic::createYes(),
],
'maybe accepts template-of-string sub type of a union member' => [
new UnionType([
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new StringType(),
TemplateTypeVariance::createInvariant(),
),
new NullType(),
]),
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Bar'),
'T',
new StringType(),
TemplateTypeVariance::createInvariant(),
),
TrinaryLogic::createMaybe(),
],
'accepts template-of-union containing a union member' => [
new UnionType([
new IntegerType(),
new NullType(),
]),
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new UnionType([
new IntegerType(),
new FloatType(),
]),
TemplateTypeVariance::createInvariant(),
),
TrinaryLogic::createMaybe(),
],
'accepts intersection with template-of-union equal to a union member' => [
new UnionType([
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new UnionType([
new ObjectType('Iterator'),
new ObjectType('IteratorAggregate'),
]),
TemplateTypeVariance::createInvariant(),
),
new NullType(),
]),
new IntersectionType([
TemplateTypeFactory::create(
TemplateTypeScope::createWithClass('Foo'),
'T',
new UnionType([
new ObjectType('Iterator'),
new ObjectType('IteratorAggregate'),
]),
TemplateTypeVariance::createInvariant(),
),
new ObjectType('Countable'),
]),
TrinaryLogic::createYes(),
],
];
}
/**
* @dataProvider dataAccepts
*/
public function testAccepts(
UnionType $type,