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Fix #2400 - string should subsume class-string
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Matthew Brown
parent
04879af105
commit
a8c2b7a525
@ -111,6 +111,9 @@ class TypeCombination
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/** @var array<string, Atomic\TLiteralFloat>|null */
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private $floats = [];
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/** @var array<string, Atomic\TNamedObject|Atomic\TObject>|null */
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private $class_string_types = [];
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/**
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* @var array<string, TNamedObject|TTemplateParam|TIterable|TObject>|null
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*/
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@ -192,6 +195,7 @@ class TypeCombination
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&& !$combination->object_type_params
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&& !$combination->named_object_types
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&& !$combination->strings
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&& !$combination->class_string_types
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&& !$combination->ints
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&& !$combination->floats
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) {
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@ -470,6 +474,23 @@ class TypeCombination
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$new_types[] = new TGenericObject($generic_type, $generic_type_params);
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}
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if ($combination->class_string_types) {
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if (!isset($combination->value_types['string'])) {
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$object_type = self::combineTypes(
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array_values($combination->class_string_types),
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$codebase
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);
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foreach ($object_type->getTypes() as $object_atomic_type) {
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if ($object_atomic_type instanceof TNamedObject) {
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$new_types[] = new TClassString($object_atomic_type->value, $object_atomic_type);
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} elseif ($object_atomic_type instanceof TObject) {
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$new_types[] = new TClassString();
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}
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}
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}
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}
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if ($combination->strings) {
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$new_types = array_merge($new_types, array_values($combination->strings));
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}
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@ -930,8 +951,12 @@ class TypeCombination
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if ($type instanceof Type\Atomic\TTemplateParamClass) {
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$combination->value_types[$type_key] = $type;
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} elseif ($type instanceof Type\Atomic\TClassString && $type->as !== 'object') {
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$combination->value_types[$type_key] = $type;
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} elseif ($type instanceof Type\Atomic\TClassString) {
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if (!$type->as_type) {
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$combination->class_string_types['object'] = new TObject();
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} else {
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$combination->class_string_types[$type->as] = $type->as_type;
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}
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} elseif ($type instanceof TLiteralString) {
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if ($combination->strings !== null && count($combination->strings) < $literal_limit) {
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$combination->strings[$type_key] = $type;
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@ -954,10 +979,9 @@ class TypeCombination
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if ($mutual) {
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$first_class = array_keys($mutual)[0];
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$class_string_type = new TClassString($first_class, new TNamedObject($first_class));
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$combination->value_types[$class_string_type->getKey()] = $class_string_type;
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$combination->class_string_types[$first_class] = new TNamedObject($first_class);
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} else {
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$combination->value_types['class-string'] = new TClassString();
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$combination->class_string_types['object'] = new TObject();
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}
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} else {
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$combination->value_types['string'] = new TString();
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@ -984,10 +1008,10 @@ class TypeCombination
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) {
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$combination->value_types[$type_key] = new TString();
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} else {
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if (isset($shared_classlikes[$type->as])) {
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$combination->value_types[$type->getKey()] = $type;
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if (isset($shared_classlikes[$type->as]) && $type->as_type) {
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$combination->class_string_types[$type->as] = $type->as_type;
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} else {
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$combination->value_types[$type_key] = new TClassString();
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$combination->class_string_types['object'] = new TObject();
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}
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}
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} else {
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@ -996,41 +1020,6 @@ class TypeCombination
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} elseif (get_class($combination->value_types['string']) !== TString::class) {
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if (get_class($type) === TString::class) {
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$combination->value_types[$type_key] = $type;
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} elseif ($combination->value_types['string'] instanceof HasClassString
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&& $type instanceof HasClassString
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) {
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$a_named_object = $combination->value_types['string']->hasSingleNamedObject();
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$b_named_object = $type->hasSingleNamedObject();
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if ($a_named_object && $b_named_object) {
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$a_object = $combination->value_types['string']->getSingleNamedObject();
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$b_object = $type->getSingleNamedObject();
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if ($a_object->value === $b_object->value) {
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$combination->value_types[$type_key] = new TClassString(
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$a_object->value,
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$a_object
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);
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} else {
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$union = self::combineTypes([$a_object, $b_object], $codebase);
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if ($union->hasSingleNamedObject()) {
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$combined_object = $union->getSingleNamedObject();
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$combined_class_string = new TClassString(
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$combined_object->value,
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$combined_object
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);
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$combination->value_types[$combined_class_string->getKey()]
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= $combined_class_string;
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} else {
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$combination->value_types[$type_key] = new TClassString();
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}
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}
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} else {
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$combination->value_types[$type_key] = new TClassString();
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}
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} elseif ($combination->value_types['string'] instanceof TTraitString
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&& $type instanceof TClassString
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) {
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@ -1102,14 +1091,16 @@ class TypeCombination
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}
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}
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foreach ($this->value_types as $value_type) {
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if ($value_type instanceof TClassString && $value_type->as_type) {
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$classlikes = self::getClassLikes($codebase, $value_type->as_type->value);
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if ($this->class_string_types) {
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foreach ($this->class_string_types as $value_type) {
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if ($value_type instanceof TNamedObject) {
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$classlikes = self::getClassLikes($codebase, $value_type->value);
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if ($shared_classlikes === null) {
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$shared_classlikes = $classlikes;
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} elseif ($shared_classlikes) {
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$shared_classlikes = array_intersect_key($shared_classlikes, $classlikes);
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if ($shared_classlikes === null) {
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$shared_classlikes = $classlikes;
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} elseif ($shared_classlikes) {
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$shared_classlikes = array_intersect_key($shared_classlikes, $classlikes);
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}
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}
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}
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}
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@ -7,7 +7,7 @@ use Psalm\Type\Union;
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/**
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* Represents a string whose value is a fully-qualified class found by get_class($var)
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*/
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class GetClassT extends TString implements HasClassString
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class GetClassT extends TString
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{
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/**
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* Used to hold information as to what this refers to
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@ -42,20 +42,4 @@ class GetClassT extends TString implements HasClassString
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{
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return false;
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}
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public function hasSingleNamedObject() : bool
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{
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return $this->as_type->isSingle() && $this->as_type->hasNamedObject();
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}
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public function getSingleNamedObject() : TNamedObject
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{
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$first_value = array_values($this->as_type->getTypes())[0];
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if (!$first_value instanceof TNamedObject) {
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throw new \UnexpectedValueException('Bad object');
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}
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return $first_value;
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}
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}
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@ -1,9 +0,0 @@
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<?php
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namespace Psalm\Type\Atomic;
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interface HasClassString
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{
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public function hasSingleNamedObject() : bool;
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public function getSingleNamedObject() : TNamedObject;
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}
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@ -8,7 +8,7 @@ use function preg_replace;
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use function stripos;
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use function strtolower;
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class TClassString extends TString implements HasClassString
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class TClassString extends TString
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{
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/**
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* @var string
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@ -111,20 +111,6 @@ class TClassString extends TString implements HasClassString
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return false;
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}
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public function hasSingleNamedObject() : bool
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{
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return (bool) $this->as_type;
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}
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public function getSingleNamedObject() : TNamedObject
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{
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if (!$this->as_type) {
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throw new \UnexpectedValueException('Bad object');
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}
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return $this->as_type;
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}
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/**
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* @param StatementsSource $source
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* @param CodeLocation $code_location
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@ -1426,22 +1426,6 @@ class Union
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return reset($this->literal_int_types);
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}
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public function hasSingleNamedObject() : bool
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{
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return $this->isSingle() && $this->hasNamedObject();
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}
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public function getSingleNamedObject() : TNamedObject
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{
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$first_value = array_values($this->types)[0];
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if (!$first_value instanceof TNamedObject) {
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throw new \UnexpectedValueException('Bad object');
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}
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return $first_value;
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}
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/**
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* @param StatementsSource $source
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* @param CodeLocation $code_location
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@ -445,6 +445,34 @@ class TypeCombinationTest extends TestCase
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'Closure(B):void',
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],
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],
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'combineClassStringWithString' => [
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'string',
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[
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'class-string',
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'string',
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],
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],
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'combineClassStringWithFalse' => [
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'class-string|false',
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[
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'class-string',
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'false',
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],
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],
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'combineRefinedClassStringWithString' => [
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'string',
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[
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'class-string<Exception>',
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'string',
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],
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],
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'combineRefinedClassStrings' => [
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'class-string<Exception>|class-string<Iterator>',
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[
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'class-string<Exception>',
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'class-string<Iterator>',
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],
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],
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];
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}
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