PHP Class GraphQL\Utils\TypeInfo

Public Methods

Method	Description
__construct ( Schema $schema )	TypeInfo constructor.
doTypesOverlap ( Schema $schema, GraphQL\Type\Definition\CompositeType $typeA, GraphQL\Type\Definition\CompositeType $typeB )	Provided two composite types, determine if they "overlap". Two composite types overlap when the Sets of possible concrete types for each intersect.
enter ( Node $node )
getArgument ( ) : FieldArgument \| null
getDirective ( ) : Directive \| null
getFieldDef ( ) : FieldDefinition
getInputType ( ) : GraphQL\Type\Definition\InputType
getParentType ( ) : Type
getType ( ) : Type
isEqualType ( Type $typeA, Type $typeB )	Provided two types, return true if the types are equal (invariant).
isTypeSubTypeOf ( Schema $schema, Type $maybeSubType, Type $superType )	Provided a type and a super type, return true if the first type is either equal or a subset of the second super type (covariant).
leave ( Node $node )
typeFromAST ( Schema $schema, $inputTypeNode ) : Type

Method	Description
getFieldDefinition ( Schema $schema, Type $parentType, FieldNode $fieldNode ) : FieldDefinition	Not exactly the same as the executor's definition of getFieldDef, in this statically evaluated environment we do not always have an Object type, and need to handle Interface and Union types.

TypeInfo constructor.

public __construct ( Schema $schema )
$schema	GraphQL\Schema

This is often used to determine if a fragment of a given type could possibly be visited in a context of another type. This function is commutative.

static public doTypesOverlap ( Schema $schema, GraphQL\Type\Definition\CompositeType $typeA, GraphQL\Type\Definition\CompositeType $typeB )
$schema	GraphQL\Schema
$typeA	GraphQL\Type\Definition\CompositeType
$typeB	GraphQL\Type\Definition\CompositeType

public enter ( Node $node )
$node	GraphQL\Language\AST\Node

public getArgument ( ) : FieldArgument \| null
return	GraphQL\Type\Definition\FieldArgument \| null

public getDirective ( ) : Directive \| null
return	GraphQL\Type\Definition\Directive \| null

public getFieldDef ( ) : FieldDefinition
return	GraphQL\Type\Definition\FieldDefinition

public getInputType ( ) : GraphQL\Type\Definition\InputType
return	GraphQL\Type\Definition\InputType

public getParentType ( ) : Type
return	GraphQL\Type\Definition\Type

public getType ( ) : Type
return	GraphQL\Type\Definition\Type

Provided two types, return true if the types are equal (invariant).

public static isEqualType ( Type $typeA, Type $typeB )
$typeA	GraphQL\Type\Definition\Type
$typeB	GraphQL\Type\Definition\Type

Provided a type and a super type, return true if the first type is either equal or a subset of the second super type (covariant).

static public isTypeSubTypeOf ( Schema $schema, Type $maybeSubType, Type $superType )
$schema	GraphQL\Schema
$maybeSubType	GraphQL\Type\Definition\Type
$superType	GraphQL\Type\Definition\Type

public leave ( Node $node )
$node	GraphQL\Language\AST\Node

public static typeFromAST ( Schema $schema, $inputTypeNode ) : Type
$schema	GraphQL\Schema
return	GraphQL\Type\Definition\Type