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QueryResultTypeWalker.php
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QueryResultTypeWalker.php
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<?php declare(strict_types = 1);
namespace PHPStan\Type\Doctrine\Query;
use BackedEnum;
use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\Mapping\ClassMetadata;
use Doctrine\ORM\Query;
use Doctrine\ORM\Query\AST;
use Doctrine\ORM\Query\AST\TypedExpression;
use Doctrine\ORM\Query\Parser;
use Doctrine\ORM\Query\ParserResult;
use Doctrine\ORM\Query\SqlWalker;
use PHPStan\ShouldNotHappenException;
use PHPStan\Type\BooleanType;
use PHPStan\Type\Constant\ConstantFloatType;
use PHPStan\Type\Constant\ConstantIntegerType;
use PHPStan\Type\Constant\ConstantStringType;
use PHPStan\Type\ConstantTypeHelper;
use PHPStan\Type\Doctrine\DescriptorNotRegisteredException;
use PHPStan\Type\Doctrine\DescriptorRegistry;
use PHPStan\Type\FloatType;
use PHPStan\Type\GeneralizePrecision;
use PHPStan\Type\IntegerRangeType;
use PHPStan\Type\IntegerType;
use PHPStan\Type\IntersectionType;
use PHPStan\Type\MixedType;
use PHPStan\Type\NeverType;
use PHPStan\Type\NullType;
use PHPStan\Type\ObjectType;
use PHPStan\Type\StringType;
use PHPStan\Type\Type;
use PHPStan\Type\TypeCombinator;
use PHPStan\Type\TypeTraverser;
use PHPStan\Type\TypeUtils;
use PHPStan\Type\UnionType;
use function array_key_exists;
use function array_map;
use function assert;
use function class_exists;
use function count;
use function floatval;
use function get_class;
use function gettype;
use function intval;
use function is_numeric;
use function is_object;
use function is_string;
use function serialize;
use function sprintf;
use function strtolower;
use function unserialize;
/**
* QueryResultTypeWalker is a TreeWalker that uses a QueryResultTypeBuilder to build the result type of a Query
*
* It extends SqlkWalker because AST\Node::dispatch() accepts SqlWalker only
*
* @phpstan-import-type QueryComponent from Parser
*/
class QueryResultTypeWalker extends SqlWalker
{
private const HINT_TYPE_MAPPING = self::class . '::HINT_TYPE_MAPPING';
private const HINT_DESCRIPTOR_REGISTRY = self::class . '::HINT_DESCRIPTOR_REGISTRY';
/**
* Counter for generating unique scalar result.
*
* @var int
*/
private $scalarResultCounter = 1;
/**
* Counter for generating indexes.
*
* @var int
*/
private $newObjectCounter = 0;
/** @var Query<mixed> */
private $query;
/** @var EntityManagerInterface */
private $em;
/**
* Map of all components/classes that appear in the DQL query.
*
* @var array<array-key,QueryComponent> $queryComponents
*/
private $queryComponents;
/** @var array<array-key,bool> */
private $nullableQueryComponents;
/** @var QueryResultTypeBuilder */
private $typeBuilder;
/** @var DescriptorRegistry */
private $descriptorRegistry;
/** @var bool */
private $hasAggregateFunction;
/** @var bool */
private $hasGroupByClause;
/**
* @param Query<mixed> $query
*/
public static function walk(Query $query, QueryResultTypeBuilder $typeBuilder, DescriptorRegistry $descriptorRegistry): void
{
$query->setHint(Query::HINT_CUSTOM_OUTPUT_WALKER, self::class);
$query->setHint(self::HINT_TYPE_MAPPING, $typeBuilder);
$query->setHint(self::HINT_DESCRIPTOR_REGISTRY, $descriptorRegistry);
$parser = new Parser($query);
$parser->parse();
}
/**
* {@inheritDoc}
*
* @param Query<mixed> $query
* @param ParserResult $parserResult
* @param array<QueryComponent> $queryComponents
*/
public function __construct($query, $parserResult, array $queryComponents)
{
$this->query = $query;
$this->em = $query->getEntityManager();
$this->queryComponents = $queryComponents;
$this->nullableQueryComponents = [];
$this->hasAggregateFunction = false;
$this->hasGroupByClause = false;
// The object is instantiated by Doctrine\ORM\Query\Parser, so receiving
// dependencies through the constructor is not an option. Instead, we
// receive the dependencies via query hints.
$typeBuilder = $this->query->getHint(self::HINT_TYPE_MAPPING);
if (!$typeBuilder instanceof QueryResultTypeBuilder) {
throw new ShouldNotHappenException(sprintf(
'Expected the query hint %s to contain a %s, but got a %s',
self::HINT_TYPE_MAPPING,
QueryResultTypeBuilder::class,
is_object($typeBuilder) ? get_class($typeBuilder) : gettype($typeBuilder)
));
}
$this->typeBuilder = $typeBuilder;
$descriptorRegistry = $this->query->getHint(self::HINT_DESCRIPTOR_REGISTRY);
if (!$descriptorRegistry instanceof DescriptorRegistry) {
throw new ShouldNotHappenException(sprintf(
'Expected the query hint %s to contain a %s, but got a %s',
self::HINT_DESCRIPTOR_REGISTRY,
DescriptorRegistry::class,
is_object($descriptorRegistry) ? get_class($descriptorRegistry) : gettype($descriptorRegistry)
));
}
$this->descriptorRegistry = $descriptorRegistry;
parent::__construct($query, $parserResult, $queryComponents);
}
public function walkSelectStatement(AST\SelectStatement $AST): string
{
$this->typeBuilder->setSelectQuery();
$this->hasAggregateFunction = $this->hasAggregateFunction($AST);
$this->hasGroupByClause = $AST->groupByClause !== null;
$this->walkFromClause($AST->fromClause);
foreach ($AST->selectClause->selectExpressions as $selectExpression) {
assert($selectExpression instanceof AST\Node);
$selectExpression->dispatch($this);
}
return '';
}
public function walkUpdateStatement(AST\UpdateStatement $AST): string
{
return $this->marshalType(new MixedType());
}
public function walkDeleteStatement(AST\DeleteStatement $AST): string
{
return $this->marshalType(new MixedType());
}
/**
* @param string $identVariable
*/
public function walkEntityIdentificationVariable($identVariable): string
{
return $this->marshalType(new MixedType());
}
/**
* @param string $identificationVariable
* @param string|null $fieldName
*/
public function walkIdentificationVariable($identificationVariable, $fieldName = null): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\PathExpression $pathExpr
*/
public function walkPathExpression($pathExpr): string
{
$fieldName = $pathExpr->field;
$dqlAlias = $pathExpr->identificationVariable;
$qComp = $this->queryComponents[$dqlAlias];
assert(array_key_exists('metadata', $qComp));
$class = $qComp['metadata'];
assert($fieldName !== null);
switch ($pathExpr->type) {
case AST\PathExpression::TYPE_STATE_FIELD:
[$typeName, $enumType] = $this->getTypeOfField($class, $fieldName);
$nullable = $this->isQueryComponentNullable($dqlAlias)
|| $class->isNullable($fieldName)
|| $this->hasAggregateWithoutGroupBy();
$fieldType = $this->resolveDatabaseInternalType($typeName, $enumType, $nullable);
return $this->marshalType($fieldType);
case AST\PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION:
if (isset($class->associationMappings[$fieldName]['inherited'])) {
/** @var class-string $newClassName */
$newClassName = $class->associationMappings[$fieldName]['inherited'];
$class = $this->em->getClassMetadata($newClassName);
}
$assoc = $class->associationMappings[$fieldName];
if (
!$assoc['isOwningSide']
|| !isset($assoc['joinColumns'])
|| count($assoc['joinColumns']) !== 1
) {
throw new ShouldNotHappenException();
}
$joinColumn = $assoc['joinColumns'][0];
/** @var class-string $assocClassName */
$assocClassName = $assoc['targetEntity'];
$targetClass = $this->em->getClassMetadata($assocClassName);
$identifierFieldNames = $targetClass->getIdentifierFieldNames();
if (count($identifierFieldNames) !== 1) {
throw new ShouldNotHappenException();
}
$targetFieldName = $identifierFieldNames[0];
[$typeName, $enumType] = $this->getTypeOfField($targetClass, $targetFieldName);
$nullable = ($joinColumn['nullable'] ?? true)
|| $this->hasAggregateWithoutGroupBy();
$fieldType = $this->resolveDatabaseInternalType($typeName, $enumType, $nullable);
return $this->marshalType($fieldType);
default:
throw new ShouldNotHappenException();
}
}
/**
* @param AST\SelectClause $selectClause
*/
public function walkSelectClause($selectClause): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\FromClause $fromClause
*/
public function walkFromClause($fromClause): string
{
foreach ($fromClause->identificationVariableDeclarations as $identificationVariableDecl) {
assert($identificationVariableDecl instanceof AST\Node);
$identificationVariableDecl->dispatch($this);
}
return '';
}
/**
* @param AST\IdentificationVariableDeclaration $identificationVariableDecl
*/
public function walkIdentificationVariableDeclaration($identificationVariableDecl): string
{
if ($identificationVariableDecl->indexBy !== null) {
$identificationVariableDecl->indexBy->dispatch($this);
}
foreach ($identificationVariableDecl->joins as $join) {
assert($join instanceof AST\Node);
$join->dispatch($this);
}
return '';
}
/**
* @param AST\IndexBy $indexBy
*/
public function walkIndexBy($indexBy): void
{
$type = $this->unmarshalType($indexBy->singleValuedPathExpression->dispatch($this));
$this->typeBuilder->setIndexedBy($type);
}
/**
* @param AST\RangeVariableDeclaration $rangeVariableDeclaration
*/
public function walkRangeVariableDeclaration($rangeVariableDeclaration): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\JoinAssociationDeclaration $joinAssociationDeclaration
* @param int $joinType
* @param AST\ConditionalExpression|AST\Phase2OptimizableConditional|null $condExpr
*/
public function walkJoinAssociationDeclaration($joinAssociationDeclaration, $joinType = AST\Join::JOIN_TYPE_INNER, $condExpr = null): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\Functions\FunctionNode $function
*/
public function walkFunction($function): string
{
switch (true) {
case $function instanceof AST\Functions\AvgFunction:
case $function instanceof AST\Functions\MaxFunction:
case $function instanceof AST\Functions\MinFunction:
case $function instanceof AST\Functions\SumFunction:
case $function instanceof AST\Functions\CountFunction:
return $function->getSql($this);
case $function instanceof AST\Functions\AbsFunction:
$exprType = $this->unmarshalType($this->walkSimpleArithmeticExpression($function->simpleArithmeticExpression));
$type = TypeCombinator::union(
IntegerRangeType::fromInterval(0, null),
new FloatType()
);
if (TypeCombinator::containsNull($exprType)) {
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\BitAndFunction:
case $function instanceof AST\Functions\BitOrFunction:
$firstExprType = $this->unmarshalType($function->firstArithmetic->dispatch($this));
$secondExprType = $this->unmarshalType($function->secondArithmetic->dispatch($this));
$type = IntegerRangeType::fromInterval(0, null);
if (TypeCombinator::containsNull($firstExprType) || TypeCombinator::containsNull($secondExprType)) {
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\ConcatFunction:
$hasNull = false;
foreach ($function->concatExpressions as $expr) {
$type = $this->unmarshalType($expr->dispatch($this));
$hasNull = $hasNull || TypeCombinator::containsNull($type);
}
$type = new StringType();
if ($hasNull) {
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\CurrentDateFunction:
case $function instanceof AST\Functions\CurrentTimeFunction:
case $function instanceof AST\Functions\CurrentTimestampFunction:
return $this->marshalType(new StringType());
case $function instanceof AST\Functions\DateAddFunction:
case $function instanceof AST\Functions\DateSubFunction:
$dateExprType = $this->unmarshalType($function->firstDateExpression->dispatch($this));
$intervalExprType = $this->unmarshalType($function->intervalExpression->dispatch($this));
$type = new StringType();
if (TypeCombinator::containsNull($dateExprType) || TypeCombinator::containsNull($intervalExprType)) {
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\DateDiffFunction:
$date1ExprType = $this->unmarshalType($function->date1->dispatch($this));
$date2ExprType = $this->unmarshalType($function->date2->dispatch($this));
$type = TypeCombinator::union(
new IntegerType(),
new FloatType()
);
if (TypeCombinator::containsNull($date1ExprType) || TypeCombinator::containsNull($date2ExprType)) {
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\LengthFunction:
$stringPrimaryType = $this->unmarshalType($function->stringPrimary->dispatch($this));
$type = IntegerRangeType::fromInterval(0, null);
if (TypeCombinator::containsNull($stringPrimaryType)) {
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\LocateFunction:
$firstExprType = $this->unmarshalType($this->walkStringPrimary($function->firstStringPrimary));
$secondExprType = $this->unmarshalType($this->walkStringPrimary($function->secondStringPrimary));
$type = IntegerRangeType::fromInterval(0, null);
if (TypeCombinator::containsNull($firstExprType) || TypeCombinator::containsNull($secondExprType)) {
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\LowerFunction:
case $function instanceof AST\Functions\TrimFunction:
case $function instanceof AST\Functions\UpperFunction:
$stringPrimaryType = $this->unmarshalType($function->stringPrimary->dispatch($this));
$type = new StringType();
if (TypeCombinator::containsNull($stringPrimaryType)) {
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\ModFunction:
$firstExprType = $this->unmarshalType($this->walkSimpleArithmeticExpression($function->firstSimpleArithmeticExpression));
$secondExprType = $this->unmarshalType($this->walkSimpleArithmeticExpression($function->secondSimpleArithmeticExpression));
$type = IntegerRangeType::fromInterval(0, null);
if (TypeCombinator::containsNull($firstExprType) || TypeCombinator::containsNull($secondExprType)) {
$type = TypeCombinator::addNull($type);
}
if ((new ConstantIntegerType(0))->isSuperTypeOf($secondExprType)->maybe()) {
// MOD(x, 0) returns NULL
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\SqrtFunction:
$exprType = $this->unmarshalType($this->walkSimpleArithmeticExpression($function->simpleArithmeticExpression));
$type = new FloatType();
if (TypeCombinator::containsNull($exprType)) {
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\SubstringFunction:
$stringType = $this->unmarshalType($function->stringPrimary->dispatch($this));
$firstExprType = $this->unmarshalType($this->walkSimpleArithmeticExpression($function->firstSimpleArithmeticExpression));
if ($function->secondSimpleArithmeticExpression !== null) {
$secondExprType = $this->unmarshalType($this->walkSimpleArithmeticExpression($function->secondSimpleArithmeticExpression));
} else {
$secondExprType = new IntegerType();
}
$type = new StringType();
if (TypeCombinator::containsNull($stringType) || TypeCombinator::containsNull($firstExprType) || TypeCombinator::containsNull($secondExprType)) {
$type = TypeCombinator::addNull($type);
}
return $this->marshalType($type);
case $function instanceof AST\Functions\IdentityFunction:
$dqlAlias = $function->pathExpression->identificationVariable;
$assocField = $function->pathExpression->field;
$queryComp = $this->queryComponents[$dqlAlias];
assert(array_key_exists('metadata', $queryComp));
$class = $queryComp['metadata'];
$assoc = $class->associationMappings[$assocField];
/** @var class-string $assocClassName */
$assocClassName = $assoc['targetEntity'];
$targetClass = $this->em->getClassMetadata($assocClassName);
if ($function->fieldMapping === null) {
$identifierFieldNames = $targetClass->getIdentifierFieldNames();
if (count($identifierFieldNames) === 0) {
throw new ShouldNotHappenException();
}
$targetFieldName = $identifierFieldNames[0];
} else {
$targetFieldName = $function->fieldMapping;
}
$fieldMapping = $targetClass->fieldMappings[$targetFieldName] ?? null;
if ($fieldMapping === null) {
return $this->marshalType(new MixedType());
}
[$typeName, $enumType] = $this->getTypeOfField($targetClass, $targetFieldName);
if (!isset($assoc['joinColumns'])) {
return $this->marshalType(new MixedType());
}
$joinColumn = null;
foreach ($assoc['joinColumns'] as $item) {
if ($item['referencedColumnName'] === $fieldMapping['columnName']) {
$joinColumn = $item;
break;
}
}
if ($joinColumn === null) {
return $this->marshalType(new MixedType());
}
$nullable = ($joinColumn['nullable'] ?? true)
|| $this->isQueryComponentNullable($dqlAlias)
|| $this->hasAggregateWithoutGroupBy();
$fieldType = $this->resolveDatabaseInternalType($typeName, $enumType, $nullable);
return $this->marshalType($fieldType);
default:
return $this->marshalType(new MixedType());
}
}
/**
* @param AST\OrderByClause $orderByClause
*/
public function walkOrderByClause($orderByClause): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\OrderByItem $orderByItem
*/
public function walkOrderByItem($orderByItem): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\HavingClause $havingClause
*/
public function walkHavingClause($havingClause): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\Join $join
*/
public function walkJoin($join): string
{
$joinType = $join->joinType;
$joinDeclaration = $join->joinAssociationDeclaration;
switch (true) {
case $joinDeclaration instanceof AST\RangeVariableDeclaration:
$dqlAlias = $joinDeclaration->aliasIdentificationVariable;
$this->nullableQueryComponents[$dqlAlias] = $joinType === AST\Join::JOIN_TYPE_LEFT || $joinType === AST\Join::JOIN_TYPE_LEFTOUTER;
break;
case $joinDeclaration instanceof AST\JoinAssociationDeclaration:
$dqlAlias = $joinDeclaration->aliasIdentificationVariable;
$this->nullableQueryComponents[$dqlAlias] = $joinType === AST\Join::JOIN_TYPE_LEFT || $joinType === AST\Join::JOIN_TYPE_LEFTOUTER;
break;
}
return '';
}
/**
* @param AST\CoalesceExpression $coalesceExpression
*/
public function walkCoalesceExpression($coalesceExpression): string
{
$expressionTypes = [];
$allTypesContainNull = true;
foreach ($coalesceExpression->scalarExpressions as $expression) {
if (!$expression instanceof AST\Node) {
$expressionTypes[] = new MixedType();
continue;
}
$type = $this->unmarshalType($expression->dispatch($this));
$allTypesContainNull = $allTypesContainNull && TypeCombinator::containsNull($type);
$expressionTypes[] = $type;
}
$type = TypeCombinator::union(...$expressionTypes);
if (!$allTypesContainNull) {
$type = TypeCombinator::removeNull($type);
}
return $this->marshalType($type);
}
/**
* @param AST\NullIfExpression $nullIfExpression
*/
public function walkNullIfExpression($nullIfExpression): string
{
$firstExpression = $nullIfExpression->firstExpression;
if (!$firstExpression instanceof AST\Node) {
return $this->marshalType(new MixedType());
}
$firstType = $this->unmarshalType($firstExpression->dispatch($this));
// NULLIF() returns the first expression or NULL
$type = TypeCombinator::addNull($firstType);
return $this->marshalType($type);
}
public function walkGeneralCaseExpression(AST\GeneralCaseExpression $generalCaseExpression): string
{
$whenClauses = $generalCaseExpression->whenClauses;
$elseScalarExpression = $generalCaseExpression->elseScalarExpression;
$types = [];
foreach ($whenClauses as $clause) {
if (!$clause instanceof AST\WhenClause) {
$types[] = new MixedType();
continue;
}
$thenScalarExpression = $clause->thenScalarExpression;
if (!$thenScalarExpression instanceof AST\Node) {
$types[] = new MixedType();
continue;
}
$types[] = $this->unmarshalType(
$thenScalarExpression->dispatch($this)
);
}
if ($elseScalarExpression instanceof AST\Node) {
$types[] = $this->unmarshalType(
$elseScalarExpression->dispatch($this)
);
}
$type = TypeCombinator::union(...$types);
return $this->marshalType($type);
}
/**
* @param AST\SimpleCaseExpression $simpleCaseExpression
*/
public function walkSimpleCaseExpression($simpleCaseExpression): string
{
$whenClauses = $simpleCaseExpression->simpleWhenClauses;
$elseScalarExpression = $simpleCaseExpression->elseScalarExpression;
$types = [];
foreach ($whenClauses as $clause) {
if (!$clause instanceof AST\SimpleWhenClause) {
$types[] = new MixedType();
continue;
}
$thenScalarExpression = $clause->thenScalarExpression;
if (!$thenScalarExpression instanceof AST\Node) {
$types[] = new MixedType();
continue;
}
$types[] = $this->unmarshalType(
$thenScalarExpression->dispatch($this)
);
}
if ($elseScalarExpression instanceof AST\Node) {
$types[] = $this->unmarshalType(
$elseScalarExpression->dispatch($this)
);
}
$type = TypeCombinator::union(...$types);
return $this->marshalType($type);
}
/**
* @param AST\SelectExpression $selectExpression
*/
public function walkSelectExpression($selectExpression): string
{
$expr = $selectExpression->expression;
$hidden = $selectExpression->hiddenAliasResultVariable;
if ($hidden) {
return '';
}
if (is_string($expr)) {
$dqlAlias = $expr;
$queryComp = $this->queryComponents[$dqlAlias];
assert(array_key_exists('metadata', $queryComp));
$class = $queryComp['metadata'];
$resultAlias = $selectExpression->fieldIdentificationVariable ?? $dqlAlias;
assert(array_key_exists('parent', $queryComp));
if ($queryComp['parent'] !== null) {
return '';
}
$type = new ObjectType($class->name);
if ($this->isQueryComponentNullable($dqlAlias) || $this->hasAggregateWithoutGroupBy()) {
$type = TypeCombinator::addNull($type);
}
$this->typeBuilder->addEntity($resultAlias, $type, $selectExpression->fieldIdentificationVariable);
return '';
}
if ($expr instanceof AST\PathExpression) {
assert($expr->type === AST\PathExpression::TYPE_STATE_FIELD);
$fieldName = $expr->field;
assert($fieldName !== null);
$resultAlias = $selectExpression->fieldIdentificationVariable ?? $fieldName;
$dqlAlias = $expr->identificationVariable;
$qComp = $this->queryComponents[$dqlAlias];
assert(array_key_exists('metadata', $qComp));
$class = $qComp['metadata'];
[$typeName, $enumType] = $this->getTypeOfField($class, $fieldName);
$nullable = $this->isQueryComponentNullable($dqlAlias)
|| $class->isNullable($fieldName)
|| $this->hasAggregateWithoutGroupBy();
$type = $this->resolveDoctrineType($typeName, $enumType, $nullable);
$this->typeBuilder->addScalar($resultAlias, $type);
return '';
}
if ($expr instanceof AST\NewObjectExpression) {
$resultAlias = $selectExpression->fieldIdentificationVariable ?? $this->newObjectCounter++;
$type = $this->unmarshalType($this->walkNewObject($expr));
$this->typeBuilder->addNewObject($resultAlias, $type);
return '';
}
if ($expr instanceof AST\Node) {
$resultAlias = $selectExpression->fieldIdentificationVariable ?? $this->scalarResultCounter++;
$type = $this->unmarshalType($expr->dispatch($this));
if (class_exists(TypedExpression::class) && $expr instanceof TypedExpression) {
$enforcedType = $this->resolveDoctrineType(Types::INTEGER);
$type = TypeTraverser::map($type, static function (Type $type, callable $traverse) use ($enforcedType): Type {
if ($type instanceof UnionType || $type instanceof IntersectionType) {
return $traverse($type);
}
if ($type instanceof NullType) {
return $type;
}
if ($enforcedType->accepts($type, true)->yes()) {
return $type;
}
if ($enforcedType instanceof StringType) {
if ($type instanceof IntegerType || $type instanceof FloatType) {
return TypeCombinator::union($type->toString(), $type);
}
if ($type instanceof BooleanType) {
return TypeCombinator::union($type->toInteger()->toString(), $type);
}
}
return $enforcedType;
});
} else {
// Expressions default to Doctrine's StringType, whose
// convertToPHPValue() is a no-op. So the actual type depends on
// the driver and PHP version.
// Here we assume that the value may or may not be casted to
// string by the driver.
$type = TypeTraverser::map($type, static function (Type $type, callable $traverse): Type {
if ($type instanceof UnionType || $type instanceof IntersectionType) {
return $traverse($type);
}
if ($type instanceof IntegerType || $type instanceof FloatType) {
return TypeCombinator::union($type->toString(), $type);
}
if ($type instanceof BooleanType) {
return TypeCombinator::union($type->toInteger()->toString(), $type);
}
return $traverse($type);
});
}
$this->typeBuilder->addScalar($resultAlias, $type);
return '';
}
return '';
}
/**
* @param AST\QuantifiedExpression $qExpr
*/
public function walkQuantifiedExpression($qExpr): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\Subselect $subselect
*/
public function walkSubselect($subselect): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\SubselectFromClause $subselectFromClause
*/
public function walkSubselectFromClause($subselectFromClause): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\SimpleSelectClause $simpleSelectClause
*/
public function walkSimpleSelectClause($simpleSelectClause): string
{
return $this->marshalType(new MixedType());
}
public function walkParenthesisExpression(AST\ParenthesisExpression $parenthesisExpression): string
{
return $parenthesisExpression->expression->dispatch($this);
}
/**
* @param AST\NewObjectExpression $newObjectExpression
* @param string|null $newObjectResultAlias
*/
public function walkNewObject($newObjectExpression, $newObjectResultAlias = null): string
{
for ($i = 0; $i < count($newObjectExpression->args); $i++) {
$this->scalarResultCounter++;
}
$type = new ObjectType($newObjectExpression->className);
return $this->marshalType($type);
}
/**
* @param AST\SimpleSelectExpression $simpleSelectExpression
*/
public function walkSimpleSelectExpression($simpleSelectExpression): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\AggregateExpression $aggExpression
*/
public function walkAggregateExpression($aggExpression): string
{
switch ($aggExpression->functionName) {
case 'MAX':
case 'MIN':
$type = $this->unmarshalType(
$this->walkSimpleArithmeticExpression($aggExpression->pathExpression)
);
return $this->marshalType(TypeCombinator::addNull($type));
case 'AVG':
$type = $this->unmarshalType(
$this->walkSimpleArithmeticExpression($aggExpression->pathExpression)
);
$type = TypeCombinator::union($type, $type->toFloat());
$type = TypeUtils::generalizeType($type, GeneralizePrecision::lessSpecific());
return $this->marshalType(TypeCombinator::addNull($type));
case 'SUM':
$type = $this->unmarshalType(
$this->walkSimpleArithmeticExpression($aggExpression->pathExpression)
);
$type = TypeUtils::generalizeType($type, GeneralizePrecision::lessSpecific());
return $this->marshalType(TypeCombinator::addNull($type));
case 'COUNT':
return $this->marshalType(IntegerRangeType::fromInterval(0, null));
default:
return $this->marshalType(new MixedType());
}
}
/**
* @param AST\GroupByClause $groupByClause
*/
public function walkGroupByClause($groupByClause): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\PathExpression|string $groupByItem
*/
public function walkGroupByItem($groupByItem): string
{
return $this->marshalType(new MixedType());
}
public function walkDeleteClause(AST\DeleteClause $deleteClause): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\UpdateClause $updateClause
*/
public function walkUpdateClause($updateClause): string
{
return $this->marshalType(new MixedType());
}
/**
* @param AST\UpdateItem $updateItem
*/