/
SimpleNegatedAssertionReconciler.php
1855 lines (1645 loc) · 63.2 KB
/
SimpleNegatedAssertionReconciler.php
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<?php
namespace Psalm\Internal\Type;
use Psalm\CodeLocation;
use Psalm\Codebase;
use Psalm\Internal\Codebase\InternalCallMapHandler;
use Psalm\Issue\DocblockTypeContradiction;
use Psalm\Issue\RedundantPropertyInitializationCheck;
use Psalm\Issue\TypeDoesNotContainType;
use Psalm\IssueBuffer;
use Psalm\Storage\Assertion;
use Psalm\Storage\Assertion\ArrayKeyDoesNotExist;
use Psalm\Storage\Assertion\DoesNotHaveAtLeastCount;
use Psalm\Storage\Assertion\DoesNotHaveExactCount;
use Psalm\Storage\Assertion\Empty_;
use Psalm\Storage\Assertion\Falsy;
use Psalm\Storage\Assertion\IsGreaterThanOrEqualTo;
use Psalm\Storage\Assertion\IsLessThanOrEqualTo;
use Psalm\Storage\Assertion\IsNotIsset;
use Psalm\Storage\Assertion\NotInArray;
use Psalm\Storage\Assertion\NotNonEmptyCountable;
use Psalm\Type;
use Psalm\Type\Atomic\Scalar;
use Psalm\Type\Atomic\TArray;
use Psalm\Type\Atomic\TArrayKey;
use Psalm\Type\Atomic\TBool;
use Psalm\Type\Atomic\TCallable;
use Psalm\Type\Atomic\TCallableArray;
use Psalm\Type\Atomic\TCallableObject;
use Psalm\Type\Atomic\TCallableString;
use Psalm\Type\Atomic\TEmptyMixed;
use Psalm\Type\Atomic\TEmptyNumeric;
use Psalm\Type\Atomic\TEmptyScalar;
use Psalm\Type\Atomic\TFalse;
use Psalm\Type\Atomic\TFloat;
use Psalm\Type\Atomic\TGenericObject;
use Psalm\Type\Atomic\TInt;
use Psalm\Type\Atomic\TIntRange;
use Psalm\Type\Atomic\TIterable;
use Psalm\Type\Atomic\TKeyedArray;
use Psalm\Type\Atomic\TList;
use Psalm\Type\Atomic\TLiteralFloat;
use Psalm\Type\Atomic\TLiteralInt;
use Psalm\Type\Atomic\TLiteralString;
use Psalm\Type\Atomic\TMixed;
use Psalm\Type\Atomic\TNamedObject;
use Psalm\Type\Atomic\TNever;
use Psalm\Type\Atomic\TNonEmptyArray;
use Psalm\Type\Atomic\TNonEmptyList;
use Psalm\Type\Atomic\TNonEmptyLowercaseString;
use Psalm\Type\Atomic\TNonEmptyNonspecificLiteralString;
use Psalm\Type\Atomic\TNonEmptyString;
use Psalm\Type\Atomic\TNull;
use Psalm\Type\Atomic\TNumeric;
use Psalm\Type\Atomic\TObject;
use Psalm\Type\Atomic\TResource;
use Psalm\Type\Atomic\TScalar;
use Psalm\Type\Atomic\TString;
use Psalm\Type\Atomic\TTemplateParam;
use Psalm\Type\Reconciler;
use Psalm\Type\Union;
use function assert;
use function get_class;
use function max;
use function strpos;
/**
* @internal
*/
class SimpleNegatedAssertionReconciler extends Reconciler
{
/**
* @param string[] $suppressed_issues
* @param Reconciler::RECONCILIATION_* $failed_reconciliation
*/
public static function reconcile(
Codebase $codebase,
Assertion $assertion,
Union $existing_var_type,
?string $key = null,
bool $negated = false,
?CodeLocation $code_location = null,
array $suppressed_issues = [],
int &$failed_reconciliation = Reconciler::RECONCILIATION_EMPTY,
bool $is_equality = false,
bool $inside_loop = false
): ?Union {
$old_var_type_string = $existing_var_type->getId();
if ($assertion instanceof IsNotIsset) {
if ($existing_var_type->possibly_undefined) {
return Type::getNever();
}
if (!$existing_var_type->isNullable()
&& $key
&& strpos($key, '[') === false
&& (!$existing_var_type->hasMixed() || $existing_var_type->isAlwaysTruthy())
) {
if ($code_location) {
if ($existing_var_type->from_static_property) {
IssueBuffer::maybeAdd(
new RedundantPropertyInitializationCheck(
'Static property ' . $key . ' with type '
. $existing_var_type
. ' has unexpected isset check — should it be nullable?',
$code_location
),
$suppressed_issues
);
} elseif ($existing_var_type->from_property) {
IssueBuffer::maybeAdd(
new RedundantPropertyInitializationCheck(
'Property ' . $key . ' with type '
. $existing_var_type . ' should already be set in the constructor',
$code_location
),
$suppressed_issues
);
} elseif ($existing_var_type->from_docblock) {
IssueBuffer::maybeAdd(
new DocblockTypeContradiction(
'Cannot resolve types for ' . $key . ' with docblock-defined type '
. $existing_var_type . ' and !isset assertion',
$code_location,
null
),
$suppressed_issues
);
} else {
IssueBuffer::maybeAdd(
new TypeDoesNotContainType(
'Cannot resolve types for ' . $key . ' with type '
. $existing_var_type . ' and !isset assertion',
$code_location,
null
),
$suppressed_issues
);
}
}
return $existing_var_type->from_docblock
? Type::getNull()
: Type::getNever();
}
return Type::getNull();
}
if ($assertion instanceof ArrayKeyDoesNotExist) {
return Type::getNever();
}
if ($assertion instanceof NotInArray) {
$new_var_type = clone $assertion->type;
$intersection = Type::intersectUnionTypes(
$new_var_type,
$existing_var_type,
$codebase
);
if ($intersection === null) {
if ($key && $code_location) {
self::triggerIssueForImpossible(
$existing_var_type,
$existing_var_type->getId(),
$key,
$assertion,
true,
$negated,
$code_location,
$suppressed_issues
);
}
$failed_reconciliation = Reconciler::RECONCILIATION_EMPTY;
}
return $existing_var_type;
}
if ($assertion instanceof Falsy || $assertion instanceof Empty_) {
return self::reconcileFalsyOrEmpty(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
false
);
}
if ($assertion instanceof NotNonEmptyCountable) {
return self::reconcileNotNonEmptyCountable(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$is_equality,
null
);
}
if ($assertion instanceof DoesNotHaveAtLeastCount) {
return self::reconcileNotNonEmptyCountable(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$is_equality,
$assertion->count
);
}
if ($assertion instanceof DoesNotHaveExactCount) {
return $existing_var_type;
}
if ($assertion instanceof IsLessThanOrEqualTo) {
return self::reconcileIsLessThanOrEqualTo(
$assertion,
$existing_var_type,
$inside_loop,
$old_var_type_string,
$key,
$negated,
$code_location,
$suppressed_issues
);
}
if ($assertion instanceof IsGreaterThanOrEqualTo) {
return self::reconcileIsGreaterThanOrEqualTo(
$assertion,
$existing_var_type,
$inside_loop,
$old_var_type_string,
$key,
$negated,
$code_location,
$suppressed_issues
);
}
$assertion_type = $assertion->getAtomicType();
if ($assertion_type instanceof TObject && !$existing_var_type->hasMixed()) {
return self::reconcileObject(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type instanceof TScalar && !$existing_var_type->hasMixed()) {
return self::reconcileScalar(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type instanceof TResource && !$existing_var_type->hasMixed()) {
return self::reconcileResource(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type && get_class($assertion_type) === TBool::class && !$existing_var_type->hasMixed()) {
return self::reconcileBool(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type instanceof TNumeric && !$existing_var_type->hasMixed()) {
return self::reconcileNumeric(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type instanceof TFloat && !$existing_var_type->hasMixed()) {
return self::reconcileFloat(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type && get_class($assertion_type) === TInt::class && !$existing_var_type->hasMixed()) {
return self::reconcileInt(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type && get_class($assertion_type) === TString::class && !$existing_var_type->hasMixed()) {
return self::reconcileString(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type instanceof TArray
&& !$existing_var_type->hasMixed()
&& $assertion_type->type_params[0]->isArrayKey()
&& $assertion_type->type_params[1]->isMixed()
) {
return self::reconcileArray(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type instanceof TNull && !$existing_var_type->hasMixed()) {
return self::reconcileNull(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type instanceof TFalse && !$existing_var_type->hasMixed()) {
return self::reconcileFalse(
$assertion,
$existing_var_type,
$key,
$negated,
$code_location,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
}
if ($assertion_type instanceof TCallable) {
return self::reconcileCallable(
$existing_var_type
);
}
return null;
}
private static function reconcileCallable(
Union $existing_var_type
): Union {
foreach ($existing_var_type->getAtomicTypes() as $atomic_key => $type) {
if ($type instanceof TLiteralString
&& InternalCallMapHandler::inCallMap($type->value)
) {
$existing_var_type->removeType($atomic_key);
}
if ($type->isCallableType()) {
$existing_var_type->removeType($atomic_key);
}
}
return $existing_var_type;
}
/**
* @param string[] $suppressed_issues
* @param Reconciler::RECONCILIATION_* $failed_reconciliation
*/
private static function reconcileBool(
Assertion $assertion,
Union $existing_var_type,
?string $key,
bool $negated,
?CodeLocation $code_location,
array $suppressed_issues,
int &$failed_reconciliation,
bool $is_equality
): Union {
$old_var_type_string = $existing_var_type->getId();
$non_bool_types = [];
$did_remove_type = false;
foreach ($existing_var_type->getAtomicTypes() as $type) {
if ($type instanceof TTemplateParam) {
if (!$type->as->hasBool()) {
$non_bool_types[] = $type;
}
$did_remove_type = true;
} elseif (!$type instanceof TBool
|| ($is_equality && get_class($type) === TBool::class)
) {
if ($type instanceof TScalar) {
$did_remove_type = true;
$non_bool_types[] = new TString();
$non_bool_types[] = new TInt();
$non_bool_types[] = new TFloat();
} else {
$non_bool_types[] = $type;
}
} else {
$did_remove_type = true;
}
}
if (!$did_remove_type || !$non_bool_types) {
if ($key && $code_location && !$is_equality) {
self::triggerIssueForImpossible(
$existing_var_type,
$old_var_type_string,
$key,
$assertion,
!$did_remove_type,
$negated,
$code_location,
$suppressed_issues
);
}
if (!$did_remove_type) {
$failed_reconciliation = Reconciler::RECONCILIATION_REDUNDANT;
}
}
if ($non_bool_types) {
return new Union($non_bool_types);
}
$failed_reconciliation = Reconciler::RECONCILIATION_EMPTY;
return Type::getMixed();
}
/**
* @param string[] $suppressed_issues
* @param Reconciler::RECONCILIATION_* $failed_reconciliation
*/
private static function reconcileNotNonEmptyCountable(
Assertion $assertion,
Union $existing_var_type,
?string $key,
bool $negated,
?CodeLocation $code_location,
array $suppressed_issues,
bool $is_equality,
?int $min_count
): Union {
$old_var_type_string = $existing_var_type->getId();
$existing_var_atomic_types = $existing_var_type->getAtomicTypes();
if (isset($existing_var_atomic_types['array'])) {
$array_atomic_type = $existing_var_atomic_types['array'];
$did_remove_type = false;
if (($array_atomic_type instanceof TNonEmptyArray
|| $array_atomic_type instanceof TNonEmptyList)
&& ($min_count === null
|| $array_atomic_type->count >= $min_count
|| $array_atomic_type->min_count >= $min_count)
) {
$did_remove_type = true;
$existing_var_type->removeType('array');
} elseif (!($array_atomic_type instanceof TArray && $array_atomic_type->isEmptyArray())) {
$did_remove_type = true;
if (!$min_count) {
$existing_var_type->addType(new TArray(
[
new Union([new TNever()]),
new Union([new TNever()]),
]
));
}
} elseif ($array_atomic_type instanceof TKeyedArray) {
$did_remove_type = true;
foreach ($array_atomic_type->properties as $property_type) {
if (!$property_type->possibly_undefined) {
$did_remove_type = false;
break;
}
}
}
if (!$is_equality
&& !$existing_var_type->hasMixed()
&& (!$did_remove_type || $existing_var_type->isUnionEmpty())
) {
if ($key && $code_location) {
self::triggerIssueForImpossible(
$existing_var_type,
$old_var_type_string,
$key,
$assertion,
!$did_remove_type,
$negated,
$code_location,
$suppressed_issues
);
}
}
}
return $existing_var_type;
}
/**
* @param string[] $suppressed_issues
* @param Reconciler::RECONCILIATION_* $failed_reconciliation
*/
private static function reconcileNull(
Assertion $assertion,
Union $existing_var_type,
?string $key,
bool $negated,
?CodeLocation $code_location,
array $suppressed_issues,
int &$failed_reconciliation,
bool $is_equality
): Union {
$old_var_type_string = $existing_var_type->getId();
$did_remove_type = false;
if ($existing_var_type->hasType('null')) {
$did_remove_type = true;
$existing_var_type->removeType('null');
}
foreach ($existing_var_type->getAtomicTypes() as $type) {
if ($type instanceof TTemplateParam) {
$type->as = self::reconcileNull(
$assertion,
$type->as,
null,
false,
null,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
$did_remove_type = true;
$existing_var_type->bustCache();
}
}
if (!$did_remove_type || $existing_var_type->isUnionEmpty()) {
if ($key && $code_location && !$is_equality) {
self::triggerIssueForImpossible(
$existing_var_type,
$old_var_type_string,
$key,
$assertion,
!$did_remove_type,
$negated,
$code_location,
$suppressed_issues
);
}
if (!$did_remove_type) {
$failed_reconciliation = Reconciler::RECONCILIATION_REDUNDANT;
}
}
if (!$existing_var_type->isUnionEmpty()) {
return $existing_var_type;
}
$failed_reconciliation = Reconciler::RECONCILIATION_EMPTY;
return Type::getMixed();
}
/**
* @param string[] $suppressed_issues
* @param Reconciler::RECONCILIATION_* $failed_reconciliation
*/
private static function reconcileFalse(
Assertion $assertion,
Union $existing_var_type,
?string $key,
bool $negated,
?CodeLocation $code_location,
array $suppressed_issues,
int &$failed_reconciliation,
bool $is_equality
): Union {
$old_var_type_string = $existing_var_type->getId();
$did_remove_type = $existing_var_type->hasScalar();
if ($existing_var_type->hasType('false')) {
$did_remove_type = true;
$existing_var_type->removeType('false');
}
foreach ($existing_var_type->getAtomicTypes() as $type) {
if ($type instanceof TTemplateParam) {
$type->as = self::reconcileFalse(
$assertion,
$type->as,
null,
false,
null,
$suppressed_issues,
$failed_reconciliation,
$is_equality
);
$did_remove_type = true;
$existing_var_type->bustCache();
}
}
if (!$did_remove_type || $existing_var_type->isUnionEmpty()) {
if ($key && $code_location && !$is_equality) {
self::triggerIssueForImpossible(
$existing_var_type,
$old_var_type_string,
$key,
$assertion,
!$did_remove_type,
$negated,
$code_location,
$suppressed_issues
);
}
if (!$did_remove_type) {
$failed_reconciliation = Reconciler::RECONCILIATION_REDUNDANT;
}
}
if (!$existing_var_type->isUnionEmpty()) {
return $existing_var_type;
}
$failed_reconciliation = Reconciler::RECONCILIATION_EMPTY;
return Type::getMixed();
}
/**
* @param Falsy|Empty_ $assertion
* @param string[] $suppressed_issues
* @param Reconciler::RECONCILIATION_* $failed_reconciliation
*/
private static function reconcileFalsyOrEmpty(
Assertion $assertion,
Union $existing_var_type,
?string $key,
bool $negated,
?CodeLocation $code_location,
array $suppressed_issues,
int &$failed_reconciliation,
bool $recursive_check
): Union {
$old_var_type_string = $existing_var_type->getId();
$did_remove_type = $existing_var_type->possibly_undefined
|| $existing_var_type->possibly_undefined_from_try;
foreach ($existing_var_type->getAtomicTypes() as $existing_var_type_key => $existing_var_type_part) {
//if any atomic in the union is either always truthy, we remove it. If not always falsy, we mark the check
//as not redundant.
if (!$existing_var_type->possibly_undefined
&& !$existing_var_type->possibly_undefined_from_try
&& $existing_var_type_part->isTruthy()
) {
$did_remove_type = true;
$existing_var_type->removeType($existing_var_type_key);
} elseif (!$existing_var_type_part->isFalsy()) {
$did_remove_type = true;
}
}
if ($did_remove_type && $existing_var_type->isUnionEmpty()) {
//every type was removed, this is an impossible assertion
if ($code_location && $key && !$recursive_check) {
self::triggerIssueForImpossible(
$existing_var_type,
$old_var_type_string,
$key,
$assertion,
false,
$negated,
$code_location,
$suppressed_issues
);
}
$failed_reconciliation = 2;
return Type::getNever();
}
if (!$did_remove_type) {
//nothing was removed, this is a redundant assertion
if ($code_location && $key && !$recursive_check) {
self::triggerIssueForImpossible(
$existing_var_type,
$old_var_type_string,
$key,
$assertion,
true,
$negated,
$code_location,
$suppressed_issues
);
}
$failed_reconciliation = 1;
return $existing_var_type;
}
if ($existing_var_type->hasType('bool')) {
$existing_var_type->removeType('bool');
$existing_var_type->addType(new TFalse());
}
if ($existing_var_type->hasArray()) {
$existing_var_type->removeType('array');
$existing_var_type->addType(new TArray(
[
new Union([new TNever()]),
new Union([new TNever()]),
]
));
}
if ($existing_var_type->hasMixed()) {
$mixed_atomic_type = $existing_var_type->getAtomicTypes()['mixed'];
if (get_class($mixed_atomic_type) === TMixed::class) {
$existing_var_type->removeType('mixed');
$existing_var_type->addType(new TEmptyMixed());
}
}
if ($existing_var_type->hasScalar()) {
$scalar_atomic_type = $existing_var_type->getAtomicTypes()['scalar'];
if (get_class($scalar_atomic_type) === TScalar::class) {
$existing_var_type->removeType('scalar');
$existing_var_type->addType(new TEmptyScalar());
}
}
if ($existing_var_type->hasType('string')) {
$string_atomic_type = $existing_var_type->getAtomicTypes()['string'];
if (get_class($string_atomic_type) === TString::class) {
$existing_var_type->removeType('string');
$existing_var_type->addType(new TLiteralString(''));
$existing_var_type->addType(new TLiteralString('0'));
} elseif (get_class($string_atomic_type) === TNonEmptyString::class) {
$existing_var_type->removeType('string');
$existing_var_type->addType(new TLiteralString('0'));
} elseif (get_class($string_atomic_type) === TNonEmptyLowercaseString::class) {
$existing_var_type->removeType('string');
$existing_var_type->addType(new TLiteralString('0'));
} elseif (get_class($string_atomic_type) === TNonEmptyNonspecificLiteralString::class) {
$existing_var_type->removeType('string');
$existing_var_type->addType(new TLiteralString('0'));
}
}
if ($existing_var_type->hasInt()) {
$existing_range_types = $existing_var_type->getRangeInts();
if ($existing_range_types) {
foreach ($existing_range_types as $int_key => $literal_type) {
if ($literal_type->contains(0)) {
$existing_var_type->removeType($int_key);
$existing_var_type->addType(new TLiteralInt(0));
}
}
} else {
$existing_var_type->removeType('int');
$existing_var_type->addType(new TLiteralInt(0));
}
}
if ($existing_var_type->hasFloat()) {
$existing_var_type->removeType('float');
$existing_var_type->addType(new TLiteralFloat(0.0));
}
if ($existing_var_type->hasNumeric()) {
$existing_var_type->removeType('numeric');
$existing_var_type->addType(new TEmptyNumeric());
}
foreach ($existing_var_type->getAtomicTypes() as $type_key => $existing_var_atomic_type) {
if ($existing_var_atomic_type instanceof TTemplateParam) {
if (!$existing_var_atomic_type->as->isMixed()) {
$template_did_fail = 0;
$existing_var_atomic_type = clone $existing_var_atomic_type;
$existing_var_atomic_type->as = self::reconcileFalsyOrEmpty(
$assertion,
$existing_var_atomic_type->as,
$key,
$negated,
$code_location,
$suppressed_issues,
$template_did_fail,
$recursive_check
);
if (!$template_did_fail) {
$existing_var_type->removeType($type_key);
$existing_var_type->addType($existing_var_atomic_type);
}
}
}
}
assert(!$existing_var_type->isUnionEmpty());
return $existing_var_type;
}
/**
* @param string[] $suppressed_issues
* @param Reconciler::RECONCILIATION_* $failed_reconciliation
*/
private static function reconcileScalar(
Assertion $assertion,
Union $existing_var_type,
?string $key,
bool $negated,
?CodeLocation $code_location,
array $suppressed_issues,
int &$failed_reconciliation,
bool $is_equality
): Union {
$old_var_type_string = $existing_var_type->getId();
$non_scalar_types = [];
$did_remove_type = false;
foreach ($existing_var_type->getAtomicTypes() as $type) {
if ($type instanceof TTemplateParam) {
if (!$is_equality && !$type->as->isMixed()) {
$template_did_fail = 0;
$type = clone $type;
$type->as = self::reconcileScalar(
$assertion,
$type->as,
null,
false,
null,
$suppressed_issues,
$template_did_fail,
$is_equality
);
$did_remove_type = true;
if (!$template_did_fail) {
$non_scalar_types[] = $type;
}
} else {
$did_remove_type = true;
$non_scalar_types[] = $type;
}
} elseif (!($type instanceof Scalar)) {
$non_scalar_types[] = $type;
} else {
$did_remove_type = true;
if ($is_equality) {
$non_scalar_types[] = $type;
}
}
}
if (!$did_remove_type || !$non_scalar_types) {
if ($key && $code_location) {
self::triggerIssueForImpossible(
$existing_var_type,
$old_var_type_string,
$key,
$assertion,
!$did_remove_type,
$negated,
$code_location,
$suppressed_issues
);
}
if (!$did_remove_type) {
$failed_reconciliation = Reconciler::RECONCILIATION_REDUNDANT;
}
}
if ($non_scalar_types) {
$type = new Union($non_scalar_types);
$type->ignore_falsable_issues = $existing_var_type->ignore_falsable_issues;
$type->ignore_nullable_issues = $existing_var_type->ignore_nullable_issues;
$type->from_docblock = $existing_var_type->from_docblock;
return $type;
}
$failed_reconciliation = Reconciler::RECONCILIATION_EMPTY;
return Type::getMixed();
}
/**
* @param string[] $suppressed_issues
* @param Reconciler::RECONCILIATION_* $failed_reconciliation
*/
private static function reconcileObject(
Assertion $assertion,
Union $existing_var_type,
?string $key,
bool $negated,
?CodeLocation $code_location,
array $suppressed_issues,
int &$failed_reconciliation,
bool $is_equality
): Union {
$old_var_type_string = $existing_var_type->getId();
$non_object_types = [];
$did_remove_type = false;
foreach ($existing_var_type->getAtomicTypes() as $type) {
if ($type instanceof TTemplateParam) {
if (!$is_equality && !$type->as->isMixed()) {