# Validation

GraphQL Validation

The `graphql.validation` package fulfills the Validation phase of fulfilling a GraphQL result.

graphql.validation.validate(schema: GraphQLSchema, document_ast: DocumentNode, rules: Collection[Type[ASTValidationRule]] | None = None, max_errors: int | None = None, type_info: TypeInfo | None = None) → List[GraphQLError]

  Implements the “Validation” section of the spec.

  Validation runs synchronously, returning a list of encountered errors, or an empty list if no errors were encountered and the document is valid.

  A list of specific validation rules may be provided. If not provided, the default list of rules defined by the GraphQL specification will be used.

  Each validation rule is a ValidationRule object which is a visitor object that holds a ValidationContext (see the language/visitor API). Visitor methods are expected to return GraphQLErrors, or lists of GraphQLErrors when invalid.

  Validate will stop validation after a `max_errors` limit has been reached. Attackers can send pathologically invalid queries to induce a DoS attack, so by default `max_errors` set to 100 errors.

  Providing a custom TypeInfo instance is deprecated; omit the `type_info` argument so that validate creates the TypeInfo instance. It will be removed in v3.3.

class graphql.validation.ASTValidationContext(ast: DocumentNode, on_error: Callable[[GraphQLError], None])

  Bases: `object`

  Utility class providing a context for validation of an AST.

  An instance of this class is passed as the context attribute to all Validators, allowing access to commonly useful contextual information from within a validation rule.

  __init__(ast: DocumentNode, on_error: Callable[[GraphQLError], None]) → None
  document: DocumentNode
  get_fragment(name: str) → FragmentDefinitionNode | None
  get_fragment_spreads(node: SelectionSetNode) → List[FragmentSpreadNode]
  get_recursively_referenced_fragments(operation: OperationDefinitionNode) → List[FragmentDefinitionNode]
  on_error(error: GraphQLError) → None
  report_error(error: GraphQLError) → None

class graphql.validation.ASTValidationRule(context: ASTValidationContext)

  Bases: `Visitor`

  Visitor for validation of an AST.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ASTValidationContext)
  context: ASTValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

class graphql.validation.SDLValidationContext(ast: DocumentNode, schema: GraphQLSchema | None, on_error: Callable[[GraphQLError], None])

  Bases: `ASTValidationContext`

  Utility class providing a context for validation of an SDL AST.

  An instance of this class is passed as the context attribute to all Validators, allowing access to commonly useful contextual information from within a validation rule.

  __init__(ast: DocumentNode, schema: GraphQLSchema | None, on_error: Callable[[GraphQLError], None]) → None
  document: DocumentNode
  get_fragment(name: str) → FragmentDefinitionNode | None
  get_fragment_spreads(node: SelectionSetNode) → List[FragmentSpreadNode]
  get_recursively_referenced_fragments(operation: OperationDefinitionNode) → List[FragmentDefinitionNode]
  on_error(error: GraphQLError) → None
  report_error(error: GraphQLError) → None
  schema: GraphQLSchema | None

class graphql.validation.SDLValidationRule(context: SDLValidationContext)

  Bases: `ASTValidationRule`

  Visitor for validation of an SDL AST.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: SDLValidationContext) → None
  context: SDLValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

class graphql.validation.ValidationContext(schema: GraphQLSchema, ast: DocumentNode, type_info: TypeInfo, on_error: Callable[[GraphQLError], None])

  Bases: `ASTValidationContext`

  Utility class providing a context for validation using a GraphQL schema.

  An instance of this class is passed as the context attribute to all Validators, allowing access to commonly useful contextual information from within a validation rule.

  __init__(schema: GraphQLSchema, ast: DocumentNode, type_info: TypeInfo, on_error: Callable[[GraphQLError], None]) → None
  document: DocumentNode
  get_argument() → GraphQLArgument | None
  get_directive() → GraphQLDirective | None
  get_enum_value() → GraphQLEnumValue | None
  get_field_def() → GraphQLField | None
  get_fragment(name: str) → FragmentDefinitionNode | None
  get_fragment_spreads(node: SelectionSetNode) → List[FragmentSpreadNode]
  get_input_type() → GraphQLScalarType | GraphQLEnumType | GraphQLInputObjectType | GraphQLWrappingType | None
  get_parent_input_type() → GraphQLScalarType | GraphQLEnumType | GraphQLInputObjectType | GraphQLWrappingType | None
  get_parent_type() → GraphQLObjectType | GraphQLInterfaceType | GraphQLUnionType | None
  get_recursive_variable_usages(operation: OperationDefinitionNode) → List[VariableUsage]
  get_recursively_referenced_fragments(operation: OperationDefinitionNode) → List[FragmentDefinitionNode]
  get_type() → GraphQLScalarType | GraphQLObjectType | GraphQLInterfaceType | GraphQLUnionType | GraphQLEnumType | GraphQLWrappingType | None
  get_variable_usages(node: OperationDefinitionNode | FragmentDefinitionNode) → List[VariableUsage]
  on_error(error: GraphQLError) → None
  report_error(error: GraphQLError) → None
  schema: GraphQLSchema

class graphql.validation.ValidationRule(context: ValidationContext)

  Bases: `ASTValidationRule`

  Visitor for validation using a GraphQL schema.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext) → None
  context: ValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

## Rules

graphql.validation.specified_rules

  A tuple with all validation rules defined by the GraphQL specification

Spec Section: “Executable Definitions”

class graphql.validation.ExecutableDefinitionsRule(context: ASTValidationContext)

  Bases: `ASTValidationRule`

  Executable definitions

  A GraphQL document is only valid for execution if all definitions are either operation or fragment definitions.

  See https://spec.graphql.org/draft/#sec-Executable-Definitions

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ASTValidationContext)
  context: ASTValidationContext
  enter_document(node: DocumentNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Field Selections on Objects, Interfaces, and Unions Types”

class graphql.validation.FieldsOnCorrectTypeRule(context: ValidationContext)

  Bases: `ValidationRule`

  Fields on correct type

  A GraphQL document is only valid if all fields selected are defined by the parent type, or are an allowed meta field such as `__typename`.

  See https://spec.graphql.org/draft/#sec-Field-Selections

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext) → None
  context: ValidationContext
  enter_field(node: FieldNode, *_args: Any) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Fragments on Composite Types”

class graphql.validation.FragmentsOnCompositeTypesRule(context: ValidationContext)

  Bases: `ValidationRule`

  Fragments on composite type

  Fragments use a type condition to determine if they apply, since fragments can only be spread into a composite type (object, interface, or union), the type condition must also be a composite type.

  See https://spec.graphql.org/draft/#sec-Fragments-On-Composite-Types

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext) → None
  context: ValidationContext
  enter_fragment_definition(node: FragmentDefinitionNode, *_args: Any) → None
  enter_inline_fragment(node: InlineFragmentNode, *_args: Any) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Argument Names”

class graphql.validation.KnownArgumentNamesRule(context: ValidationContext)

  Bases: `KnownArgumentNamesOnDirectivesRule`

  Known argument names

  A GraphQL field is only valid if all supplied arguments are defined by that field.

  See https://spec.graphql.org/draft/#sec-Argument-Names See https://spec.graphql.org/draft/#sec-Directives-Are-In-Valid-Locations

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext)
  context: ValidationContext
  enter_argument(arg_node: ArgumentNode, *args: Any) → None
  enter_directive(directive_node: DirectiveNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Directives Are Defined”

class graphql.validation.KnownDirectivesRule(context: ValidationContext | SDLValidationContext)

  Bases: `ASTValidationRule`

  Known directives

  A GraphQL document is only valid if all `@directives` are known by the schema and legally positioned.

  See https://spec.graphql.org/draft/#sec-Directives-Are-Defined

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext | SDLValidationContext)
  context: ValidationContext | SDLValidationContext
  enter_directive(node: DirectiveNode, _key: Any, _parent: Any, _path: Any, ancestors: List[Node]) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Fragment spread target defined”

class graphql.validation.KnownFragmentNamesRule(context: ValidationContext)

  Bases: `ValidationRule`

  Known fragment names

  A GraphQL document is only valid if all `...Fragment` fragment spreads refer to fragments defined in the same document.

  See https://spec.graphql.org/draft/#sec-Fragment-spread-target-defined

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext) → None
  context: ValidationContext
  enter_fragment_spread(node: FragmentSpreadNode, *_args: Any) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Fragment Spread Type Existence”

class graphql.validation.KnownTypeNamesRule(context: ValidationContext | SDLValidationContext)

  Bases: `ASTValidationRule`

  Known type names

  A GraphQL document is only valid if referenced types (specifically variable definitions and fragment conditions) are defined by the type schema.

  See https://spec.graphql.org/draft/#sec-Fragment-Spread-Type-Existence

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext | SDLValidationContext)
  context: ASTValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_named_type(node: NamedTypeNode, _key: Any, parent: Node, _path: Any, ancestors: List[Node]) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Lone Anonymous Operation”

class graphql.validation.LoneAnonymousOperationRule(context: ASTValidationContext)

  Bases: `ASTValidationRule`

  Lone anonymous operation

  A GraphQL document is only valid if when it contains an anonymous operation (the query short-hand) that it contains only that one operation definition.

  See https://spec.graphql.org/draft/#sec-Lone-Anonymous-Operation

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ASTValidationContext)
  context: ASTValidationContext
  enter_document(node: DocumentNode, *_args: Any) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_operation_definition(node: OperationDefinitionNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Fragments must not form cycles”

class graphql.validation.NoFragmentCyclesRule(context: ASTValidationContext)

  Bases: `ASTValidationRule`

  No fragment cycles

  The graph of fragment spreads must not form any cycles including spreading itself. Otherwise an operation could infinitely spread or infinitely execute on cycles in the underlying data.

  See https://spec.graphql.org/draft/#sec-Fragment-spreads-must-not-form-cycles

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ASTValidationContext)
  context: ASTValidationContext
  detect_cycle_recursive(fragment: FragmentDefinitionNode) → None
  enter_fragment_definition(node: FragmentDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  static enter_operation_definition(*_args: Any) → VisitorActionEnum | None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “All Variable Used Defined”

class graphql.validation.NoUndefinedVariablesRule(context: ValidationContext)

  Bases: `ValidationRule`

  No undefined variables

  A GraphQL operation is only valid if all variables encountered, both directly and via fragment spreads, are defined by that operation.

  See https://spec.graphql.org/draft/#sec-All-Variable-Uses-Defined

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext)
  context: ValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_operation_definition(*_args: Any) → None
  enter_variable_definition(node: VariableDefinitionNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  leave_operation_definition(operation: OperationDefinitionNode, *_args: Any) → None
  report_error(error: GraphQLError) → None

Spec Section: “Fragments must be used”

class graphql.validation.NoUnusedFragmentsRule(context: ASTValidationContext)

  Bases: `ASTValidationRule`

  No unused fragments

  A GraphQL document is only valid if all fragment definitions are spread within operations, or spread within other fragments spread within operations.

  See https://spec.graphql.org/draft/#sec-Fragments-Must-Be-Used

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ASTValidationContext)
  context: ASTValidationContext
  enter_fragment_definition(node: FragmentDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_operation_definition(node: OperationDefinitionNode, *_args: Any) → VisitorActionEnum | None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  leave_document(*_args: Any) → None
  report_error(error: GraphQLError) → None

Spec Section: “All Variables Used”

class graphql.validation.NoUnusedVariablesRule(context: ValidationContext)

  Bases: `ValidationRule`

  No unused variables

  A GraphQL operation is only valid if all variables defined by an operation are used, either directly or within a spread fragment.

  See https://spec.graphql.org/draft/#sec-All-Variables-Used

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext)
  context: ValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_operation_definition(*_args: Any) → None
  enter_variable_definition(definition: VariableDefinitionNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  leave_operation_definition(operation: OperationDefinitionNode, *_args: Any) → None
  report_error(error: GraphQLError) → None

Spec Section: “Field Selection Merging”

class graphql.validation.OverlappingFieldsCanBeMergedRule(context: ValidationContext)

  Bases: `ValidationRule`

  Overlapping fields can be merged

  A selection set is only valid if all fields (including spreading any fragments) either correspond to distinct response names or can be merged without ambiguity.

  See https://spec.graphql.org/draft/#sec-Field-Selection-Merging

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext)
  context: ValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_selection_set(selection_set: SelectionSetNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Fragment spread is possible”

class graphql.validation.PossibleFragmentSpreadsRule(context: ValidationContext)

  Bases: `ValidationRule`

  Possible fragment spread

  A fragment spread is only valid if the type condition could ever possibly be true: if there is a non-empty intersection of the possible parent types, and possible types which pass the type condition.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext) → None
  context: ValidationContext
  enter_fragment_spread(node: FragmentSpreadNode, *_args: Any) → None
  enter_inline_fragment(node: InlineFragmentNode, *_args: Any) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_fragment_type(name: str) → GraphQLObjectType | GraphQLInterfaceType | GraphQLUnionType | None
  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Argument Optionality”

class graphql.validation.ProvidedRequiredArgumentsRule(context: ValidationContext)

  Bases: `ProvidedRequiredArgumentsOnDirectivesRule`

  Provided required arguments

  A field or directive is only valid if all required (non-null without a default value) field arguments have been provided.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext)
  context: ValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  leave_directive(directive_node: DirectiveNode, *_args: Any) → None
  leave_field(field_node: FieldNode, *_args: Any) → VisitorActionEnum | None
  report_error(error: GraphQLError) → None

Spec Section: “Leaf Field Selections”

class graphql.validation.ScalarLeafsRule(context: ValidationContext)

  Bases: `ValidationRule`

  Scalar leafs

  A GraphQL document is valid only if all leaf fields (fields without sub selections) are of scalar or enum types.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext) → None
  context: ValidationContext
  enter_field(node: FieldNode, *_args: Any) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Subscriptions with Single Root Field”

class graphql.validation.SingleFieldSubscriptionsRule(context: ValidationContext)

  Bases: `ValidationRule`

  Subscriptions must only include a single non-introspection field.

  A GraphQL subscription is valid only if it contains a single root field and that root field is not an introspection field.

  See https://spec.graphql.org/draft/#sec-Single-root-field

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext) → None
  context: ValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_operation_definition(node: OperationDefinitionNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Argument Uniqueness”

class graphql.validation.UniqueArgumentNamesRule(context: ASTValidationContext)

  Bases: `ASTValidationRule`

  Unique argument names

  A GraphQL field or directive is only valid if all supplied arguments are uniquely named.

  See https://spec.graphql.org/draft/#sec-Argument-Names

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ASTValidationContext)
  check_arg_uniqueness(argument_nodes: Collection[ArgumentNode]) → None
  context: ASTValidationContext
  enter_directive(node: DirectiveNode, *args: Any) → None
  enter_field(node: FieldNode, *_args: Any) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Directives Are Unique Per Location”

class graphql.validation.UniqueDirectivesPerLocationRule(context: ValidationContext | SDLValidationContext)

  Bases: `ASTValidationRule`

  Unique directive names per location

  A GraphQL document is only valid if all non-repeatable directives at a given location are uniquely named.

  See https://spec.graphql.org/draft/#sec-Directives-Are-Unique-Per-Location

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext | SDLValidationContext)
  context: ValidationContext | SDLValidationContext
  enter(node: Node, *_args: Any) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Fragment Name Uniqueness”

class graphql.validation.UniqueFragmentNamesRule(context: ASTValidationContext)

  Bases: `ASTValidationRule`

  Unique fragment names

  A GraphQL document is only valid if all defined fragments have unique names.

  See https://spec.graphql.org/draft/#sec-Fragment-Name-Uniqueness

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ASTValidationContext)
  context: ASTValidationContext
  enter_fragment_definition(node: FragmentDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  static enter_operation_definition(*_args: Any) → VisitorActionEnum | None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Input Object Field Uniqueness”

class graphql.validation.UniqueInputFieldNamesRule(context: ASTValidationContext)

  Bases: `ASTValidationRule`

  Unique input field names

  A GraphQL input object value is only valid if all supplied fields are uniquely named.

  See https://spec.graphql.org/draft/#sec-Input-Object-Field-Uniqueness

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ASTValidationContext)
  context: ASTValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_object_field(node: ObjectFieldNode, *_args: Any) → None
  enter_object_value(*_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  leave_object_value(*_args: Any) → None
  report_error(error: GraphQLError) → None

Spec Section: “Operation Name Uniqueness”

class graphql.validation.UniqueOperationNamesRule(context: ASTValidationContext)

  Bases: `ASTValidationRule`

  Unique operation names

  A GraphQL document is only valid if all defined operations have unique names.

  See https://spec.graphql.org/draft/#sec-Operation-Name-Uniqueness

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ASTValidationContext)
  context: ASTValidationContext
  static enter_fragment_definition(*_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_operation_definition(node: OperationDefinitionNode, *_args: Any) → VisitorActionEnum | None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Variable Uniqueness”

class graphql.validation.UniqueVariableNamesRule(context: ASTValidationContext)

  Bases: `ASTValidationRule`

  Unique variable names

  A GraphQL operation is only valid if all its variables are uniquely named.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ASTValidationContext)
  context: ASTValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_operation_definition(node: OperationDefinitionNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “Value Type Correctness”

class graphql.validation.ValuesOfCorrectTypeRule(context: ValidationContext)

  Bases: `ValidationRule`

  Value literals of correct type

  A GraphQL document is only valid if all value literals are of the type expected at their position.

  See https://spec.graphql.org/draft/#sec-Values-of-Correct-Type

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext) → None
  context: ValidationContext
  enter_boolean_value(node: BooleanValueNode, *_args: Any) → None
  enter_enum_value(node: EnumValueNode, *_args: Any) → None
  enter_float_value(node: FloatValueNode, *_args: Any) → None
  enter_int_value(node: IntValueNode, *_args: Any) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_list_value(node: ListValueNode, *_args: Any) → VisitorActionEnum | None
  enter_null_value(node: NullValueNode, *_args: Any) → None
  enter_object_field(node: ObjectFieldNode, *_args: Any) → None
  enter_object_value(node: ObjectValueNode, *_args: Any) → VisitorActionEnum | None
  enter_string_value(node: StringValueNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  is_valid_value_node(node: ValueNode) → None

    Check whether this is a valid value node.

    Any value literal may be a valid representation of a Scalar, depending on that scalar type.

  report_error(error: GraphQLError) → None

Spec Section: “Variables are Input Types”

class graphql.validation.VariablesAreInputTypesRule(context: ValidationContext)

  Bases: `ValidationRule`

  Variables are input types

  A GraphQL operation is only valid if all the variables it defines are of input types (scalar, enum, or input object).

  See https://spec.graphql.org/draft/#sec-Variables-Are-Input-Types

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext) → None
  context: ValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_variable_definition(node: VariableDefinitionNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

Spec Section: “All Variable Usages Are Allowed”

class graphql.validation.VariablesInAllowedPositionRule(context: ValidationContext)

  Bases: `ValidationRule`

  Variables in allowed position

  Variable usages must be compatible with the arguments they are passed to.

  See https://spec.graphql.org/draft/#sec-All-Variable-Usages-are-Allowed

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext)
  context: ValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_operation_definition(*_args: Any) → None
  enter_variable_definition(node: VariableDefinitionNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  leave_operation_definition(operation: OperationDefinitionNode, *_args: Any) → None
  report_error(error: GraphQLError) → None

No spec section: “Maximum introspection depth”

class graphql.validation.MaxIntrospectionDepthRule(context: ValidationContext)

  Bases: `ASTValidationRule`

  Checks maximum introspection depth

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: ValidationContext) → None
  context: ASTValidationContext
  enter_field(node: FieldNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

SDL-specific validation rules

class graphql.validation.LoneSchemaDefinitionRule(context: SDLValidationContext)

  Bases: `SDLValidationRule`

  Lone Schema definition

  A GraphQL document is only valid if it contains only one schema definition.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: SDLValidationContext)
  context: SDLValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_schema_definition(node: SchemaDefinitionNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

class graphql.validation.UniqueOperationTypesRule(context: SDLValidationContext)

  Bases: `SDLValidationRule`

  Unique operation types

  A GraphQL document is only valid if it has only one type per operation.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: SDLValidationContext)
  check_operation_types(node: SchemaDefinitionNode | SchemaExtensionNode, *_args: Any) → VisitorActionEnum | None
  context: SDLValidationContext
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_schema_definition(node: SchemaDefinitionNode | SchemaExtensionNode, *_args: Any) → VisitorActionEnum | None
  enter_schema_extension(node: SchemaDefinitionNode | SchemaExtensionNode, *_args: Any) → VisitorActionEnum | None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

class graphql.validation.UniqueTypeNamesRule(context: SDLValidationContext)

  Bases: `SDLValidationRule`

  Unique type names

  A GraphQL document is only valid if all defined types have unique names.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: SDLValidationContext)
  check_type_name(node: TypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  context: SDLValidationContext
  enter_enum_type_definition(node: TypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_input_object_type_definition(node: TypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_interface_type_definition(node: TypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_object_type_definition(node: TypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_scalar_type_definition(node: TypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_union_type_definition(node: TypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

class graphql.validation.UniqueEnumValueNamesRule(context: SDLValidationContext)

  Bases: `SDLValidationRule`

  Unique enum value names

  A GraphQL enum type is only valid if all its values are uniquely named.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: SDLValidationContext)
  check_value_uniqueness(node: EnumTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  context: SDLValidationContext
  enter_enum_type_definition(node: EnumTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_enum_type_extension(node: EnumTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

class graphql.validation.UniqueFieldDefinitionNamesRule(context: SDLValidationContext)

  Bases: `SDLValidationRule`

  Unique field definition names

  A GraphQL complex type is only valid if all its fields are uniquely named.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: SDLValidationContext)
  check_field_uniqueness(node: ObjectTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  context: SDLValidationContext
  enter_input_object_type_definition(node: ObjectTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_input_object_type_extension(node: ObjectTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_interface_type_definition(node: ObjectTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_interface_type_extension(node: ObjectTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_object_type_definition(node: ObjectTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_object_type_extension(node: ObjectTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

class graphql.validation.UniqueArgumentDefinitionNamesRule(context: SDLValidationContext)

  Bases: `SDLValidationRule`

  Unique argument definition names

  A GraphQL Object or Interface type is only valid if all its fields have uniquely named arguments. A GraphQL Directive is only valid if all its arguments are uniquely named.

  See https://spec.graphql.org/draft/#sec-Argument-Uniqueness

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: SDLValidationContext) → None
  check_arg_uniqueness(parent_name: str, argument_nodes: Collection[InputValueDefinitionNode]) → VisitorActionEnum | None
  check_arg_uniqueness_per_field(name: NameNode, fields: Collection[FieldDefinitionNode]) → VisitorActionEnum | None
  context: SDLValidationContext
  enter_directive_definition(node: DirectiveDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_interface_type_definition(node: InterfaceTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_interface_type_extension(node: InterfaceTypeExtensionNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_object_type_definition(node: ObjectTypeDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_object_type_extension(node: ObjectTypeExtensionNode, *_args: Any) → VisitorActionEnum | None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

class graphql.validation.UniqueDirectiveNamesRule(context: SDLValidationContext)

  Bases: `SDLValidationRule`

  Unique directive names

  A GraphQL document is only valid if all defined directives have unique names.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: SDLValidationContext)
  context: SDLValidationContext
  enter_directive_definition(node: DirectiveDefinitionNode, *_args: Any) → VisitorActionEnum | None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None

class graphql.validation.PossibleTypeExtensionsRule(context: SDLValidationContext)

  Bases: `SDLValidationRule`

  Possible type extension

  A type extension is only valid if the type is defined and has the same kind.

  BREAK = True
  IDLE = None
  REMOVE = Ellipsis
  SKIP = False
  __init__(context: SDLValidationContext)
  check_extension(node: TypeExtensionNode, *_args: Any) → None
  context: SDLValidationContext
  enter_enum_type_extension(node: TypeExtensionNode, *_args: Any) → None
  enter_input_object_type_extension(node: TypeExtensionNode, *_args: Any) → None
  enter_interface_type_extension(node: TypeExtensionNode, *_args: Any) → None
  enter_leave_map: Dict[str, EnterLeaveVisitor]
  enter_object_type_extension(node: TypeExtensionNode, *_args: Any) → None
  enter_scalar_type_extension(node: TypeExtensionNode, *_args: Any) → None
  enter_union_type_extension(node: TypeExtensionNode, *_args: Any) → None
  get_enter_leave_for_kind(kind: str) → EnterLeaveVisitor

    Given a node kind, return the EnterLeaveVisitor for that kind.

  get_visit_fn(kind: str, is_leaving: bool = False) → Callable[[...], VisitorActionEnum | None] | None

    Get the visit function for the given node kind and direction.

    This deprecated compatibility helper delegates to `get_enter_leave_for_kind`; call `get_enter_leave_for_kind` directly because `get_visit_fn` will be removed in v3.3.

    Deprecated since version 3.2: Please use `get_enter_leave_for_kind` instead. Will be removed in v3.3.

  report_error(error: GraphQLError) → None