/** @category AST */
import type { KindTypeMap } from "./KindTypeMap.js";
import type { Source } from "./source.js";
import type { TokenKind } from "./tokenKind.js";
/**
 * Contains a range of UTF-8 character offsets and token references that
 * identify the region of the source from which the AST derived.
 */
export declare class Location {
    /** The character offset at which this Node begins. */
    readonly start: number;
    /** The character offset at which this Node ends. */
    readonly end: number;
    /** The Token at which this Node begins. */
    readonly startToken: Token;
    /** The Token at which this Node ends. */
    readonly endToken: Token;
    /** The Source document the AST represents. */
    readonly source: Source;
    /**
     * Creates a Location instance.
     * @param startToken - The start token.
     * @param endToken - The end token.
     * @param source - Source document used to derive error locations.
     * @example
     * ```ts
     * import { Location, Source, Token, TokenKind } from 'graphql/language';
     *
     * const source = new Source('{ hello }');
     * const startToken = new Token(TokenKind.BRACE_L, 0, 1, 1, 1);
     * const endToken = new Token(TokenKind.BRACE_R, 8, 9, 1, 9);
     * const location = new Location(startToken, endToken, source);
     *
     * location.start; // => 0
     * location.end; // => 9
     * location.source.body; // => '{ hello }'
     * ```
     */
    constructor(startToken: Token, endToken: Token, source: Source);
    /**
     * Returns the value used by `Object.prototype.toString`.
     * @returns The built-in string tag for this object.
     */
    get [Symbol.toStringTag](): string;
    /**
     * Returns a JSON representation of this location.
     * @returns The JSON-serializable representation.
     * @example
     * ```ts
     * import { parse } from 'graphql/language';
     *
     * const document = parse('{ hello }');
     * const location = document.loc?.toJSON();
     *
     * location; // => { start: 0, end: 9 }
     * ```
     */
    toJSON(): {
        start: number;
        end: number;
    };
}
/**
 * Represents a range of characters represented by a lexical token
 * within a Source.
 */
export declare class Token {
    /** The kind of Token. */
    readonly kind: TokenKind;
    /** The character offset at which this Node begins. */
    readonly start: number;
    /** The character offset at which this Node ends. */
    readonly end: number;
    /** The 1-indexed line number on which this Token appears. */
    readonly line: number;
    /** The 1-indexed column number at which this Token begins. */
    readonly column: number;
    /**
     * For non-punctuation tokens, represents the interpreted value of the token.
     *
     * Note: is undefined for punctuation tokens, but typed as string for
     * convenience in the parser.
     */
    readonly value: string;
    /**
     * Tokens exist as nodes in a double-linked-list amongst all tokens
     * including ignored tokens. <SOF> is always the first node and <EOF>
     * the last.
     */
    readonly prev: Token | null;
    /** Next token in the token stream, including ignored tokens. */
    readonly next: Token | null;
    /**
     * Creates a Token instance.
     * @param kind - Token kind produced by lexical analysis.
     * @param start - Character offset where this token begins.
     * @param end - Character offset where this token ends.
     * @param line - One-indexed line number where this token begins.
     * @param column - One-indexed column number where this token begins.
     * @param value - Interpreted value for non-punctuation tokens.
     * @example
     * ```ts
     * import { Token, TokenKind } from 'graphql/language';
     *
     * const token = new Token(TokenKind.NAME, 2, 7, 1, 3, 'hello');
     *
     * token.kind; // => TokenKind.NAME
     * token.value; // => 'hello'
     * token.toJSON(); // => { kind: 'Name', value: 'hello', line: 1, column: 3 }
     * ```
     */
    constructor(kind: TokenKind, start: number, end: number, line: number, column: number, value?: string);
    /**
     * Returns the value used by `Object.prototype.toString`.
     * @returns The built-in string tag for this object.
     */
    get [Symbol.toStringTag](): string;
    /**
     * Returns a JSON representation of this token.
     * @returns The JSON-serializable representation.
     * @example
     * ```ts
     * import { Lexer, Source } from 'graphql/language';
     *
     * const lexer = new Lexer(new Source('{ hello }'));
     * const token = lexer.advance().toJSON();
     *
     * token; // => { kind: '{', value: undefined, line: 1, column: 1 }
     * ```
     */
    toJSON(): {
        kind: TokenKind;
        value?: string;
        line: number;
        column: number;
    };
}
/** The list of all possible AST node types. */
export type ASTNode = NameNode | DocumentNode | OperationDefinitionNode | VariableDefinitionNode | VariableNode | SelectionSetNode | FieldNode | ArgumentNode | FragmentArgumentNode | FragmentSpreadNode | InlineFragmentNode | FragmentDefinitionNode | IntValueNode | FloatValueNode | StringValueNode | BooleanValueNode | NullValueNode | EnumValueNode | ListValueNode | ObjectValueNode | ObjectFieldNode | DirectiveNode | NamedTypeNode | ListTypeNode | NonNullTypeNode | SchemaDefinitionNode | OperationTypeDefinitionNode | ScalarTypeDefinitionNode | ObjectTypeDefinitionNode | FieldDefinitionNode | InputValueDefinitionNode | InterfaceTypeDefinitionNode | UnionTypeDefinitionNode | EnumTypeDefinitionNode | EnumValueDefinitionNode | InputObjectTypeDefinitionNode | DirectiveDefinitionNode | SchemaExtensionNode | ScalarTypeExtensionNode | ObjectTypeExtensionNode | InterfaceTypeExtensionNode | UnionTypeExtensionNode | EnumTypeExtensionNode | InputObjectTypeExtensionNode | DirectiveExtensionNode | TypeCoordinateNode | MemberCoordinateNode | ArgumentCoordinateNode | DirectiveCoordinateNode | DirectiveArgumentCoordinateNode;
/** Utility type listing all nodes indexed by their kind. */
export type ASTKindToNode = {
    [NodeT in ASTNode as NodeT['kind']]: NodeT;
};
/** @internal */
export declare const QueryDocumentKeys: {
    [NodeT in ASTNode as NodeT['kind']]: ReadonlyArray<keyof NodeT>;
};
/** @internal */
export declare function isNode(maybeNode: any): maybeNode is ASTNode;
/** An identifier in a GraphQL document. */
export interface NameNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['NAME'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Parsed value represented by this node. */
    readonly value: string;
}
/** The root AST node for a parsed GraphQL document. */
export interface DocumentNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['DOCUMENT'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Top-level executable and type-system definitions in this document. */
    readonly definitions: ReadonlyArray<DefinitionNode>;
    /** The number of lexical tokens parsed for this document, if token counting was enabled. */
    readonly tokenCount?: number | undefined;
}
/** Any top-level definition that may appear in a GraphQL document. */
export type DefinitionNode = ExecutableDefinitionNode | TypeSystemDefinitionNode | TypeSystemExtensionNode;
/** Any executable definition that may appear in an operation document. */
export type ExecutableDefinitionNode = OperationDefinitionNode | FragmentDefinitionNode;
/** A query, mutation, or subscription operation definition. */
export interface OperationDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['OPERATION_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** The operation selected for execution. */
    readonly operation: OperationTypeNode;
    /** Name node identifying this AST node. */
    readonly name?: NameNode | undefined;
    /** Variable definitions declared by this operation or fragment. */
    readonly variableDefinitions?: ReadonlyArray<VariableDefinitionNode> | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<DirectiveNode> | undefined;
    /** Selections made by this operation, field, or fragment. */
    readonly selectionSet: SelectionSetNode;
}
/**
 * A narrowed OperationDefinitionNode for subscription operations.
 * Subscription operations go through a distinct execution pipeline
 * (source event stream + per-event execution), so narrowing the operation
 * type allows functions in that pipeline to accept only valid input.
 */
export interface SubscriptionOperationDefinitionNode extends OperationDefinitionNode {
    /** Subscription operation kind for this definition. */
    readonly operation: (typeof OperationTypeNode)['SUBSCRIPTION'];
}
/**
 * The operation types supported by GraphQL executable definitions.
 * @category Kinds
 */
export declare const OperationTypeNode: {
    readonly QUERY: "query";
    readonly MUTATION: "mutation";
    readonly SUBSCRIPTION: "subscription";
};
/**
 * The operation types supported by GraphQL executable definitions.
 * @category Kinds
 */
export type OperationTypeNode = (typeof OperationTypeNode)[keyof typeof OperationTypeNode];
/** A variable declaration in an operation or experimental fragment definition. */
export interface VariableDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['VARIABLE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** The variable being defined or referenced. */
    readonly variable: VariableNode;
    /** The GraphQL type reference or runtime type for this element. */
    readonly type: TypeNode;
    /** Default value used when no explicit value is supplied. */
    readonly defaultValue?: ConstValueNode | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
}
/** A variable reference, such as `$id`. */
export interface VariableNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['VARIABLE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
}
/** A set of fields and fragments selected from an object, interface, or union. */
export interface SelectionSetNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    kind: KindTypeMap['SELECTION_SET'];
    /** The source location for this AST node, if location tracking was enabled. */
    loc?: Location | undefined;
    /** Fields and fragments contained in this selection set. */
    selections: ReadonlyArray<SelectionNode>;
}
/** Any selection that may appear inside a selection set. */
export type SelectionNode = FieldNode | FragmentSpreadNode | InlineFragmentNode;
/** A field selected in an executable GraphQL document. */
export interface FieldNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['FIELD'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The response-key alias for this field, if one was supplied. */
    readonly alias?: NameNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Arguments supplied to this field, directive, or coordinate. */
    readonly arguments?: ReadonlyArray<ArgumentNode> | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<DirectiveNode> | undefined;
    /** Selections made by this operation, field, or fragment. */
    readonly selectionSet?: SelectionSetNode | undefined;
}
/** An argument supplied to a field or directive. */
export interface ArgumentNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['ARGUMENT'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Parsed value represented by this node. */
    readonly value: ValueNode;
}
/** An argument node whose value is guaranteed to be constant. */
export interface ConstArgumentNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['ARGUMENT'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Parsed value represented by this node. */
    readonly value: ConstValueNode;
}
/** Variable definition declared by a fragment argument. */
export interface FragmentArgumentNode {
    /** AST node kind for a fragment argument. */
    readonly kind: KindTypeMap['FRAGMENT_ARGUMENT'];
    /** Source location for this fragment argument. */
    readonly loc?: Location | undefined;
    /** Variable name declared by this fragment argument. */
    readonly name: NameNode;
    /** Default value literal for this fragment argument, if provided. */
    readonly value: ValueNode;
}
/** A named fragment spread, such as `...userFields`. */
export interface FragmentSpreadNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['FRAGMENT_SPREAD'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Argument values supplied to the referenced fragment. */
    readonly arguments?: ReadonlyArray<FragmentArgumentNode> | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<DirectiveNode> | undefined;
}
/** An inline fragment spread with an optional type condition. */
export interface InlineFragmentNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['INLINE_FRAGMENT'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The type condition that limits where this fragment applies. */
    readonly typeCondition?: NamedTypeNode | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<DirectiveNode> | undefined;
    /** Selections made by this operation, field, or fragment. */
    readonly selectionSet: SelectionSetNode;
}
/** A reusable fragment definition declared in an executable document. */
export interface FragmentDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['FRAGMENT_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Experimental variable definitions declared by this fragment definition. */
    readonly variableDefinitions?: ReadonlyArray<VariableDefinitionNode> | undefined;
    /** The type condition that limits where this fragment applies. */
    readonly typeCondition: NamedTypeNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<DirectiveNode> | undefined;
    /** Selections made by this operation, field, or fragment. */
    readonly selectionSet: SelectionSetNode;
}
/** Any value literal that may appear in an executable GraphQL document. */
export type ValueNode = VariableNode | IntValueNode | FloatValueNode | StringValueNode | BooleanValueNode | NullValueNode | EnumValueNode | ListValueNode | ObjectValueNode;
/** Any value literal that is guaranteed not to contain a variable reference. */
export type ConstValueNode = IntValueNode | FloatValueNode | StringValueNode | BooleanValueNode | NullValueNode | EnumValueNode | ConstListValueNode | ConstObjectValueNode;
/** An integer value literal. */
export interface IntValueNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['INT'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Parsed value represented by this node. */
    readonly value: string;
}
/** A floating-point value literal. */
export interface FloatValueNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['FLOAT'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Parsed value represented by this node. */
    readonly value: string;
}
/** A string value literal. */
export interface StringValueNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['STRING'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Parsed value represented by this node. */
    readonly value: string;
    /** Whether this string was parsed from block string syntax. */
    readonly block?: boolean | undefined;
}
/** A boolean value literal. */
export interface BooleanValueNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['BOOLEAN'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Parsed value represented by this node. */
    readonly value: boolean;
}
/** A null value literal. */
export interface NullValueNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['NULL'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
}
/** An enum value literal. */
export interface EnumValueNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['ENUM'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Parsed value represented by this node. */
    readonly value: string;
}
/** A list value literal. */
export interface ListValueNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['LIST'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Values contained in this enum, list, or input-object definition. */
    readonly values: ReadonlyArray<ValueNode>;
}
/** A list value literal whose elements are all constant values. */
export interface ConstListValueNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['LIST'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Values contained in this enum, list, or input-object definition. */
    readonly values: ReadonlyArray<ConstValueNode>;
}
/** An input object value literal. */
export interface ObjectValueNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['OBJECT'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Fields declared by this object, interface, input object, or literal. */
    readonly fields: ReadonlyArray<ObjectFieldNode>;
}
/** An input object value literal whose fields are all constant values. */
export interface ConstObjectValueNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['OBJECT'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Fields declared by this object, interface, input object, or literal. */
    readonly fields: ReadonlyArray<ConstObjectFieldNode>;
}
/** A field inside an input object value literal. */
export interface ObjectFieldNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['OBJECT_FIELD'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Parsed value represented by this node. */
    readonly value: ValueNode;
}
/** A field inside a constant input object value literal. */
export interface ConstObjectFieldNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['OBJECT_FIELD'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Parsed value represented by this node. */
    readonly value: ConstValueNode;
}
/** A directive applied to an executable or type-system location. */
export interface DirectiveNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['DIRECTIVE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Arguments supplied to this field, directive, or coordinate. */
    readonly arguments?: ReadonlyArray<ArgumentNode> | undefined;
}
/** A directive whose arguments are all constant values. */
export interface ConstDirectiveNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['DIRECTIVE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Arguments supplied to this field, directive, or coordinate. */
    readonly arguments?: ReadonlyArray<ConstArgumentNode> | undefined;
}
/** Any GraphQL type reference AST node. */
export type TypeNode = NamedTypeNode | ListTypeNode | NonNullTypeNode;
/** A named type reference. */
export interface NamedTypeNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['NAMED_TYPE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
}
/** A list type reference. */
export interface ListTypeNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['LIST_TYPE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The GraphQL type reference or runtime type for this element. */
    readonly type: TypeNode;
}
/** A non-null type reference. */
export interface NonNullTypeNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['NON_NULL_TYPE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The GraphQL type reference or runtime type for this element. */
    readonly type: NamedTypeNode | ListTypeNode;
}
/** Any type-system definition that may appear in a schema document. */
export type TypeSystemDefinitionNode = SchemaDefinitionNode | TypeDefinitionNode | DirectiveDefinitionNode;
/** A schema definition in a type-system document. */
export interface SchemaDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['SCHEMA_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Root operation types declared by this schema definition or extension. */
    readonly operationTypes: ReadonlyArray<OperationTypeDefinitionNode>;
}
/** A root operation type declaration inside a schema definition or extension. */
export interface OperationTypeDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['OPERATION_TYPE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The operation selected for execution. */
    readonly operation: OperationTypeNode;
    /** The GraphQL type reference or runtime type for this element. */
    readonly type: NamedTypeNode;
}
/** Any named type definition that may appear in a schema document. */
export type TypeDefinitionNode = ScalarTypeDefinitionNode | ObjectTypeDefinitionNode | InterfaceTypeDefinitionNode | UnionTypeDefinitionNode | EnumTypeDefinitionNode | InputObjectTypeDefinitionNode;
/** A scalar type definition in a type-system document. */
export interface ScalarTypeDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['SCALAR_TYPE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
}
/** An object type definition in a type-system document. */
export interface ObjectTypeDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['OBJECT_TYPE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Interfaces implemented by this object or interface type. */
    readonly interfaces?: ReadonlyArray<NamedTypeNode> | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Fields declared by this object, interface, input object, or literal. */
    readonly fields?: ReadonlyArray<FieldDefinitionNode> | undefined;
}
/** A field definition declared by an object or interface type. */
export interface FieldDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['FIELD_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Arguments supplied to this field, directive, or coordinate. */
    readonly arguments?: ReadonlyArray<InputValueDefinitionNode> | undefined;
    /** The GraphQL type reference or runtime type for this element. */
    readonly type: TypeNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
}
/** An argument or input-field definition. */
export interface InputValueDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['INPUT_VALUE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** The GraphQL type reference or runtime type for this element. */
    readonly type: TypeNode;
    /** Default value used when no explicit value is supplied. */
    readonly defaultValue?: ConstValueNode | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
}
/** An interface type definition in a type-system document. */
export interface InterfaceTypeDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['INTERFACE_TYPE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Interfaces implemented by this object or interface type. */
    readonly interfaces?: ReadonlyArray<NamedTypeNode> | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Fields declared by this object, interface, input object, or literal. */
    readonly fields?: ReadonlyArray<FieldDefinitionNode> | undefined;
}
/** A union type definition in a type-system document. */
export interface UnionTypeDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['UNION_TYPE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Object types that belong to this union type. */
    readonly types?: ReadonlyArray<NamedTypeNode> | undefined;
}
/** An enum type definition in a type-system document. */
export interface EnumTypeDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['ENUM_TYPE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Values contained in this enum, list, or input-object definition. */
    readonly values?: ReadonlyArray<EnumValueDefinitionNode> | undefined;
}
/** An enum value definition. */
export interface EnumValueDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['ENUM_VALUE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
}
/** An input object type definition in a type-system document. */
export interface InputObjectTypeDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['INPUT_OBJECT_TYPE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Fields declared by this object, interface, input object, or literal. */
    readonly fields?: ReadonlyArray<InputValueDefinitionNode> | undefined;
}
/** A directive definition in a type-system document. */
export interface DirectiveDefinitionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['DIRECTIVE_DEFINITION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** The optional GraphQL description associated with this definition. */
    readonly description?: StringValueNode | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Arguments supplied to this field, directive, or coordinate. */
    readonly arguments?: ReadonlyArray<InputValueDefinitionNode> | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Whether this directive may appear more than once at the same location. */
    readonly repeatable: boolean;
    /** Locations where this directive may be applied. */
    readonly locations: ReadonlyArray<NameNode>;
}
/** Any type-system extension that may appear in a schema extension document. */
export type TypeSystemExtensionNode = SchemaExtensionNode | TypeExtensionNode | DirectiveExtensionNode;
/** A schema extension in a type-system document. */
export interface SchemaExtensionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['SCHEMA_EXTENSION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Root operation types declared by this schema definition or extension. */
    readonly operationTypes?: ReadonlyArray<OperationTypeDefinitionNode> | undefined;
}
/** Any named type extension that may appear in a schema extension document. */
export type TypeExtensionNode = ScalarTypeExtensionNode | ObjectTypeExtensionNode | InterfaceTypeExtensionNode | UnionTypeExtensionNode | EnumTypeExtensionNode | InputObjectTypeExtensionNode;
/** A scalar type extension. */
export interface ScalarTypeExtensionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['SCALAR_TYPE_EXTENSION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
}
/** An object type extension. */
export interface ObjectTypeExtensionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['OBJECT_TYPE_EXTENSION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Interfaces implemented by this object or interface type. */
    readonly interfaces?: ReadonlyArray<NamedTypeNode> | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Fields declared by this object, interface, input object, or literal. */
    readonly fields?: ReadonlyArray<FieldDefinitionNode> | undefined;
}
/** An interface type extension. */
export interface InterfaceTypeExtensionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['INTERFACE_TYPE_EXTENSION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Interfaces implemented by this object or interface type. */
    readonly interfaces?: ReadonlyArray<NamedTypeNode> | undefined;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Fields declared by this object, interface, input object, or literal. */
    readonly fields?: ReadonlyArray<FieldDefinitionNode> | undefined;
}
/** A union type extension. */
export interface UnionTypeExtensionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['UNION_TYPE_EXTENSION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Object types that belong to this union type. */
    readonly types?: ReadonlyArray<NamedTypeNode> | undefined;
}
/** An enum type extension. */
export interface EnumTypeExtensionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['ENUM_TYPE_EXTENSION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Values contained in this enum, list, or input-object definition. */
    readonly values?: ReadonlyArray<EnumValueDefinitionNode> | undefined;
}
/** An input object type extension. */
export interface InputObjectTypeExtensionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['INPUT_OBJECT_TYPE_EXTENSION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
    /** Fields declared by this object, interface, input object, or literal. */
    readonly fields?: ReadonlyArray<InputValueDefinitionNode> | undefined;
}
/** A directive extension. */
export interface DirectiveExtensionNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['DIRECTIVE_EXTENSION'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location | undefined;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** Directives available in this schema or applied to this AST node. */
    readonly directives?: ReadonlyArray<ConstDirectiveNode> | undefined;
}
/** Any AST node representing a GraphQL schema coordinate. */
export type SchemaCoordinateNode = TypeCoordinateNode | MemberCoordinateNode | ArgumentCoordinateNode | DirectiveCoordinateNode | DirectiveArgumentCoordinateNode;
/** A schema coordinate that refers to a named type. */
export interface TypeCoordinateNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['TYPE_COORDINATE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
}
/** A schema coordinate that refers to a member of a named type. */
export interface MemberCoordinateNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['MEMBER_COORDINATE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** The member name referenced by this schema coordinate. */
    readonly memberName: NameNode;
}
/** A schema coordinate that refers to a field or directive argument. */
export interface ArgumentCoordinateNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['ARGUMENT_COORDINATE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** The field name referenced by this schema coordinate. */
    readonly fieldName: NameNode;
    /** The argument name referenced by this schema coordinate. */
    readonly argumentName: NameNode;
}
/** A schema coordinate that refers to a directive. */
export interface DirectiveCoordinateNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['DIRECTIVE_COORDINATE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
}
/** A schema coordinate that refers to a directive argument. */
export interface DirectiveArgumentCoordinateNode {
    /** The discriminator identifying the concrete AST or introspection kind. */
    readonly kind: KindTypeMap['DIRECTIVE_ARGUMENT_COORDINATE'];
    /** The source location for this AST node, if location tracking was enabled. */
    readonly loc?: Location;
    /** Name node identifying this AST node. */
    readonly name: NameNode;
    /** The argument name referenced by this schema coordinate. */
    readonly argumentName: NameNode;
}