Fixup index.d.ts files to reflect Flow (#2118)

* Fixup index.d.ts files to refelct Flow

* Add back TS version header

tstypes/index.d.ts

@@ -1,12 +1,40 @@
 // TypeScript Version: 2.6
 
+/**
+ * GraphQL.js provides a reference implementation for the GraphQL specification
+ * but is also a useful utility for operating on GraphQL files and building
+ * sophisticated tools.
+ *
+ * This primary module exports a general purpose function for fulfilling all
+ * steps of the GraphQL specification in a single operation, but also includes
+ * utilities for every part of the GraphQL specification:
+ *
+ *   - Parsing the GraphQL language.
+ *   - Building a GraphQL type schema.
+ *   - Validating a GraphQL request against a type schema.
+ *   - Executing a GraphQL request against a type schema.
+ *
+ * This also includes utility functions for operating on GraphQL types and
+ * GraphQL documents to facilitate building tools.
+ *
+ * You may also import from each sub-directory directly. For example, the
+ * following two import statements are equivalent:
+ *
+ *     import { parse } from 'graphql';
+ *     import { parse } from 'graphql/language';
+ */
+
+// The GraphQL.js version info.
+export { version, versionInfo } from './version';
+
 // The primary entry point into fulfilling a GraphQL request.
-export { graphql, graphqlSync, GraphQLArgs } from './graphql';
+export { GraphQLArgs, graphql, graphqlSync } from './graphql';
 
 // Create and operate on GraphQL type definitions and schema.
 export {
-  GraphQLSchema,
   // Definitions
+  GraphQLSchema,
+  GraphQLDirective,
   GraphQLScalarType,
   GraphQLObjectType,
   GraphQLInterfaceType,
@@ -15,10 +43,7 @@ export {
   GraphQLInputObjectType,
   GraphQLList,
   GraphQLNonNull,
-  GraphQLDirective,
-  // "Enum" of Type Kinds
-  TypeKind,
-  // Scalars
+  // Standard GraphQL Scalars
   specifiedScalarTypes,
   GraphQLInt,
   GraphQLFloat,
@@ -30,12 +55,10 @@ export {
   GraphQLIncludeDirective,
   GraphQLSkipDirective,
   GraphQLDeprecatedDirective,
+  // "Enum" of Type Kinds
+  TypeKind,
   // Constant Deprecation Reason
   DEFAULT_DEPRECATION_REASON,
-  // Meta-field definitions.
-  SchemaMetaFieldDef,
-  TypeMetaFieldDef,
-  TypeNameMetaFieldDef,
   // GraphQL Types for introspection.
   introspectionTypes,
   __Schema,
@@ -46,6 +69,10 @@ export {
   __InputValue,
   __EnumValue,
   __TypeKind,
+  // Meta-field definitions.
+  SchemaMetaFieldDef,
+  TypeMetaFieldDef,
+  TypeNameMetaFieldDef,
   // Predicates
   isSchema,
   isDirective,
@@ -72,6 +99,8 @@ export {
   isIntrospectionType,
   isSpecifiedDirective,
   // Assertions
+  assertSchema,
+  assertDirective,
   assertType,
   assertScalarType,
   assertObjectType,
@@ -95,7 +124,9 @@ export {
   // Validate GraphQL schema.
   validateSchema,
   assertValidSchema,
-  // type
+} from './type';
+
+export {
   GraphQLType,
   GraphQLInputType,
   GraphQLOutputType,
@@ -107,6 +138,7 @@ export {
   GraphQLNamedType,
   Thunk,
   GraphQLSchemaConfig,
+  GraphQLDirectiveConfig,
   GraphQLArgument,
   GraphQLArgumentConfig,
   GraphQLEnumTypeConfig,
@@ -128,10 +160,10 @@ export {
   GraphQLIsTypeOfFn,
   GraphQLObjectTypeConfig,
   GraphQLResolveInfo,
+  ResponsePath,
   GraphQLScalarTypeConfig,
   GraphQLTypeResolver,
   GraphQLUnionTypeConfig,
-  GraphQLDirectiveConfig,
   GraphQLScalarSerializer,
   GraphQLScalarValueParser,
   GraphQLScalarLiteralParser,
@@ -141,6 +173,12 @@ export {
 export {
   Source,
   getLocation,
+  // Print source location
+  printLocation,
+  printSourceLocation,
+  // Lex
+  createLexer,
+  TokenKind,
   // Parse
   parse,
   parseValue,
@@ -152,10 +190,9 @@ export {
   visitInParallel,
   visitWithTypeInfo,
   getVisitFn,
+  BREAK,
   Kind,
-  TokenKind,
   DirectiveLocation,
-  BREAK,
   // Predicates
   isDefinitionNode,
   isExecutableDefinitionNode,
@@ -166,20 +203,26 @@ export {
   isTypeDefinitionNode,
   isTypeSystemExtensionNode,
   isTypeExtensionNode,
-  // type
+} from './language';
+
+export {
   Lexer,
   ParseOptions,
   SourceLocation,
+  Location,
+  Token,
+  TokenKindEnum,
+  KindEnum,
+  DirectiveLocationEnum,
   // Visitor utilities
   ASTVisitor,
   Visitor,
   VisitFn,
   VisitorKeyMap,
   // AST nodes
-  Location,
-  Token,
   ASTNode,
   ASTKindToNode,
+  // Each kind of AST node
   NameNode,
   DocumentNode,
   DefinitionNode,
@@ -233,25 +276,26 @@ export {
   UnionTypeExtensionNode,
   EnumTypeExtensionNode,
   InputObjectTypeExtensionNode,
-  KindEnum,
-  TokenKindEnum,
-  DirectiveLocationEnum,
 } from './language';
 
 // Execute GraphQL queries.
 export {
   execute,
   defaultFieldResolver,
+  defaultTypeResolver,
   responsePathAsArray,
   getDirectiveValues,
-  // type
   ExecutionArgs,
   ExecutionResult,
 } from './execution';
 
-export { subscribe, createSourceEventStream } from './subscription';
+export {
+  subscribe,
+  createSourceEventStream,
+  SubscriptionArgs,
+} from './subscription';
 
-// Validate GraphQL queries.
+// Validate GraphQL documents.
 export {
   validate,
   ValidationContext,
@@ -283,13 +327,16 @@ export {
   ValuesOfCorrectTypeRule,
   VariablesAreInputTypesRule,
   VariablesInAllowedPositionRule,
+  ValidationRule,
 } from './validation';
 
-// Create and format GraphQL errors.
+// Create, format, and print GraphQL errors.
 export {
   GraphQLError,
-  formatError,
+  syntaxError,
+  locatedError,
   printError,
+  formatError,
   GraphQLFormattedError,
 } from './error';
 
@@ -298,13 +345,13 @@ export {
   // Produce the GraphQL query recommended for a full schema introspection.
   // Accepts optional IntrospectionOptions.
   getIntrospectionQuery,
-  // @deprecated: use getIntrospectionQuery - will be removed in v15
+  // @deprecated: use getIntrospectionQuery - will be removed in v15.
   introspectionQuery,
-  // Gets the target Operation from a Document
+  // Gets the target Operation from a Document.
   getOperationAST,
   // Gets the Type for the target Operation AST.
   getOperationRootType,
-  // Convert a GraphQLSchema to an IntrospectionQuery
+  // Convert a GraphQLSchema to an IntrospectionQuery.
   introspectionFromSchema,
   // Build a GraphQLSchema from an introspection result.
   buildClientSchema,
@@ -313,7 +360,7 @@ export {
   // Build a GraphQLSchema from a GraphQL schema language document.
   buildSchema,
   // @deprecated: Get the description from a schema AST node and supports legacy
-  // syntax for specifying descriptions - will be removed in v16
+  // syntax for specifying descriptions - will be removed in v16.
   getDescription,
   // Extends an existing GraphQLSchema from a parsed GraphQL Schema
   // language AST.
@@ -322,11 +369,11 @@ export {
   lexicographicSortSchema,
   // Print a GraphQLSchema to GraphQL Schema language.
   printSchema,
+  // Print a GraphQLType to GraphQL Schema language.
+  printType,
   // Prints the built-in introspection schema in the Schema Language
   // format.
   printIntrospectionSchema,
-  // Print a GraphQLType to GraphQL Schema language.
-  printType,
   // Create a GraphQLType from a GraphQL language AST.
   typeFromAST,
   // Create a JavaScript value from a GraphQL language AST with a Type.
@@ -339,15 +386,20 @@ export {
   // the GraphQL type system.
   TypeInfo,
   // Coerces a JavaScript value to a GraphQL type, or produces errors.
+  coerceInputValue,
+  // @deprecated use coerceInputValue - will be removed in v15
   coerceValue,
-  // @deprecated use coerceValue - will be removed in v15
+  // @deprecated use coerceInputValue - will be removed in v15
   isValidJSValue,
   // @deprecated use validation - will be removed in v15
   isValidLiteralValue,
   // Concatenates multiple AST together.
   concatAST,
   // Separates an AST into an AST per Operation.
   separateOperations,
+  // Strips characters that are not significant to the validity or execution
+  // of a GraphQL document.
+  stripIgnoredCharacters,
   // Comparators for types
   isEqualType,
   isTypeSubTypeOf,
@@ -357,36 +409,38 @@ export {
   // Determine if a string is a valid GraphQL name.
   isValidNameError,
   // Compares two GraphQLSchemas and detects breaking changes.
-  findBreakingChanges,
-  findDangerousChanges,
   BreakingChangeType,
   DangerousChangeType,
+  findBreakingChanges,
+  findDangerousChanges,
   // Report all deprecated usage within a GraphQL document.
   findDeprecatedUsages,
-  // type
-  BuildSchemaOptions,
-  BreakingChange,
-  DangerousChange,
+} from './utilities';
+
+export {
   IntrospectionOptions,
-  IntrospectionDirective,
+  IntrospectionQuery,
+  IntrospectionSchema,
+  IntrospectionType,
+  IntrospectionInputType,
+  IntrospectionOutputType,
+  IntrospectionScalarType,
+  IntrospectionObjectType,
+  IntrospectionInterfaceType,
+  IntrospectionUnionType,
   IntrospectionEnumType,
-  IntrospectionEnumValue,
-  IntrospectionField,
   IntrospectionInputObjectType,
-  IntrospectionInputType,
+  IntrospectionTypeRef,
   IntrospectionInputTypeRef,
-  IntrospectionInputValue,
-  IntrospectionInterfaceType,
-  IntrospectionListTypeRef,
+  IntrospectionOutputTypeRef,
   IntrospectionNamedTypeRef,
+  IntrospectionListTypeRef,
   IntrospectionNonNullTypeRef,
-  IntrospectionObjectType,
-  IntrospectionOutputType,
-  IntrospectionOutputTypeRef,
-  IntrospectionQuery,
-  IntrospectionScalarType,
-  IntrospectionSchema,
-  IntrospectionType,
-  IntrospectionTypeRef,
-  IntrospectionUnionType,
+  IntrospectionField,
+  IntrospectionInputValue,
+  IntrospectionEnumValue,
+  IntrospectionDirective,
+  BuildSchemaOptions,
+  BreakingChange,
+  DangerousChange,
 } from './utilities';

tstypes/language/index.d.ts

@@ -1,5 +1,8 @@
 export { Source } from './source';
 export { getLocation, SourceLocation } from './location';
+
+export { printLocation, printSourceLocation } from './printLocation';
+
 export { Kind, KindEnum } from './kinds';
 export { TokenKind, TokenKindEnum } from './tokenKind';
 export { createLexer, Lexer } from './lexer';

tstypes/type/index.d.ts

@@ -1,3 +1,5 @@
+export { Path as ResponsePath } from '../jsutils/Path';
+
 export {
   // Predicate
   isSchema,

tstypes/validation/index.d.ts

@@ -1,6 +1,6 @@
 export { validate } from './validate';
 
-export { ValidationContext } from './ValidationContext';
+export { ValidationContext, ValidationRule } from './ValidationContext';
 
 export { specifiedRules } from './specifiedRules';
 

tstypes/version.d.ts

@@ -0,0 +1,14 @@
+/**
+ * A string containing the version of the GraphQL.js library
+ */
+export const version: string;
+
+/**
+ * An object containing the components of the GraphQL.js version string
+ */
+export const versionInfo: {
+  major: number;
+  minor: number;
+  patch: number;
+  preReleaseTag: number | null;
+};