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<?php |
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declare(strict_types = 1); |
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namespace Innmind\Immutable; |
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use Innmind\Immutable\{ |
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Specification\PrimitiveType, |
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Specification\ClassType, |
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Specification\VariableType, |
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Specification\MixedType, |
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Specification\NullableType, |
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Specification\UnionType |
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}; |
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final class Type |
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{ |
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/** |
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* Build the appropriate specification for the given type |
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* |
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* @param string $type |
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* |
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* @return SpecificationInterface |
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*/ |
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472 |
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public static function of(string $type): SpecificationInterface |
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{ |
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472 |
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if ($type === '?null') { |
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throw new \ParseError('\'null\' type is already nullable'); |
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} |
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if ($type === '?mixed') { |
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throw new \ParseError('\'mixed\' type already accepts \'null\' values'); |
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} |
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468 |
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$type = Str::of($type); |
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468 |
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if ($type->contains('|') && $type->contains('?')) { |
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throw new \ParseError('Nullable expression is not allowed in a union type'); |
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} |
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if ($type->contains('|')) { |
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return new UnionType( |
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...$type->split('|')->reduce( |
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[], |
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static function(array $types, Str $type): array { |
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$types[] = self::of((string) $type); |
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return $types; |
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2 |
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} |
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) |
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); |
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} |
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if ($type->startsWith('?')) { |
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return new NullableType( |
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self::ofPrimitive((string) $type->drop(1)) |
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); |
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} |
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return self::ofPrimitive((string) $type); |
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} |
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/** |
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* Return the type of the given value |
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* |
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* @param mixed $value |
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* |
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* @return string |
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*/ |
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public static function determine($value): string |
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{ |
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$type = \gettype($value); |
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switch ($type) { |
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case 'object': |
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return \get_class($value); |
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case 'integer': |
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return 'int'; |
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2 |
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case 'boolean': |
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return 'bool'; |
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case 'NULL': |
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return 'null'; |
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case 'double': |
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return 'float'; |
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default: |
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return $type; |
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} |
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} |
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private static function ofPrimitive(string $type): SpecificationInterface |
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{ |
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if (\function_exists('is_'.$type)) { |
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return new PrimitiveType($type); |
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} |
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if ($type === 'variable') { |
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return new VariableType; |
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} |
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202 |
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if ($type === 'mixed') { |
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2 |
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return new MixedType; |
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} |
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202 |
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return new ClassType($type); |
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} |
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} |
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Innmind /
Immutable
