feat(typings): emit declaration files, filtering out internals

Closes #745

src/cli/config/init.ts

@@ -12,6 +12,9 @@ import { Arguments } from 'yargs'
 import { CliCommand } from '..'
 import { createJestPreset } from '../../config/create-jest-preset'
 
+/**
+ * @internal
+ */
 export const run: CliCommand = async (args: Arguments /* , logger: Logger */) => {
   const file = args._[0] || 'jest.config.js'
   const filePath = join(process.cwd(), file)
@@ -94,6 +97,9 @@ Jest configuration written to "${filePath}".
 `)
 }
 
+/**
+ * @internal
+ */
 export const help: CliCommand = async () => {
   process.stdout.write(`
 Usage:

src/cli/config/migrate.ts

@@ -9,6 +9,9 @@ import { CliCommand } from '..'
 import { createJestPreset } from '../../config/create-jest-preset'
 import { backportJestConfig } from '../../util/backports'
 
+/**
+ * @internal
+ */
 export const run: CliCommand = async (args: Arguments /*, logger: Logger*/) => {
   const nullLogger = createLogger({ targets: [] })
   const file = args._[0]
@@ -153,6 +156,9 @@ function dedupSort(arr: any[]) {
     .sort((a, b) => (a.toString() > b.toString() ? 1 : a.toString() < b.toString() ? -1 : 0))
 }
 
+/**
+ * @internal
+ */
 export const help: CliCommand = async () => {
   process.stdout.write(`
 Usage:

src/cli/help.ts

@@ -1,5 +1,8 @@
 import { Arguments } from 'yargs'
 
+/**
+ * @internal
+ */
 export const run = async (_: Arguments) => {
   process.stdout.write(`
 Usage:
@@ -15,4 +18,7 @@ Example:
 `)
 }
 
-export { run as help }
+/**
+ * @internal
+ */
+export const help = run

src/cli/index.ts

@@ -8,6 +8,9 @@ const VALID_COMMANDS = ['help', 'config:migrate', 'config:init']
 
 const logger = rootLogger.child({ [LogContexts.namespace]: 'cli', [LogContexts.application]: 'ts-jest' })
 
+/**
+ * @internal
+ */
 export type CliCommand = (argv: Arguments, logger: Logger) => Promise<void>
 
 async function cli(args: string[]): Promise<void> {
@@ -33,6 +36,9 @@ async function cli(args: string[]): Promise<void> {
   return cmd(parsedArgv, logger)
 }
 
+/**
+ * @internal
+ */
 export async function processArgv(): Promise<void> {
   try {
     await cli(process.argv.slice(2))

src/compiler.ts

@@ -45,6 +45,7 @@ const hasOwn = Object.prototype.hasOwnProperty
 
 /**
  * Register TypeScript compiler.
+ * @internal
  */
 export function createCompiler(configs: ConfigSet): TsCompiler {
   const logger = configs.logger.child({ namespace: 'ts-compiler' })

src/config/config-set.ts

@@ -57,14 +57,23 @@ interface ReadTsConfigResult {
   resolved: ParsedCommandLine
 }
 
+/**
+ * @internal
+ */
 // this regex MUST match nothing, it's the goal ;-)
 export const MATCH_NOTHING = /a^/
+/**
+ * @internal
+ */
 export const IGNORE_DIAGNOSTIC_CODES = [
   6059, // "'rootDir' is expected to contain all source files."
   18002, // "The 'files' list in config file is empty."
   18003, // "No inputs were found in config file."
 ]
 
+/**
+ * @internal
+ */
 // WARNING: DO NOT CHANGE THE ORDER OF CODE NAMES!
 // ONLY APPEND IF YOU NEED TO ADD SOME
 export enum DiagnosticCodes {
@@ -103,16 +112,6 @@ const toDiagnosticCodeList = (items: any, into: number[] = []): number[] => {
 }
 
 export class ConfigSet {
-  readonly logger: Logger
-
-  constructor(
-    private readonly _jestConfig: jest.ProjectConfig,
-    readonly parentOptions?: TsJestGlobalOptions,
-    parentLogger?: Logger,
-  ) {
-    this.logger = parentLogger ? parentLogger.child({ [LogContexts.namespace]: 'config' }) : logger
-  }
-
   @Memoize()
   get jest(): jest.ProjectConfig {
     const config = backportJestConfig(this.logger, this._jestConfig)
@@ -234,6 +233,9 @@ export class ConfigSet {
     )
   }
 
+  /**
+   * @internal
+   */
   @Memoize()
   private get _typescript(): ReadTsConfigResult {
     const {
@@ -252,6 +254,9 @@ export class ConfigSet {
     return result
   }
 
+  /**
+   * @internal
+   */
   @Memoize()
   get raiseDiagnostics() {
     const {
@@ -349,6 +354,9 @@ export class ConfigSet {
     return {}
   }
 
+  /**
+   * @internal
+   */
   @Memoize()
   get filterDiagnostics() {
     const {
@@ -392,6 +400,9 @@ export class ConfigSet {
     }
   }
 
+  /**
+   * @internal
+   */
   @Memoize()
   get createTsError() {
     const {
@@ -471,10 +482,54 @@ export class ConfigSet {
     return normalize(this.jest.cwd || process.cwd())
   }
 
+  /**
+   * @internal
+   */
   get isDoctoring() {
     return !!process.env.TS_JEST_DOCTOR
   }
 
+  /**
+   * @internal
+   */
+  @Memoize()
+  get jsonValue() {
+    const jest = { ...this.jest }
+    const globals = (jest.globals = { ...jest.globals } as any)
+    // we need to remove some stuff from jest config
+    // this which does not depend on config
+    delete jest.name
+    delete jest.cacheDirectory
+    // we do not need this since its normalized version is in tsJest
+    delete globals['ts-jest']
+
+    return new JsonableValue({
+      versions: this.versions,
+      transformers: this.astTransformers.map(t => `${t.name}@${t.version}`),
+      jest,
+      tsJest: this.tsJest,
+      babel: this.babel,
+      tsconfig: this.tsconfig,
+    })
+  }
+
+  get cacheKey(): string {
+    return this.jsonValue.serialized
+  }
+  readonly logger: Logger
+  /**
+   * @internal
+   */
+  private readonly _jestConfig: jest.ProjectConfig
+
+  constructor(jestConfig: jest.ProjectConfig, readonly parentOptions?: TsJestGlobalOptions, parentLogger?: Logger) {
+    this._jestConfig = jestConfig
+    this.logger = parentLogger ? parentLogger.child({ [LogContexts.namespace]: 'config' }) : logger
+  }
+
+  /**
+   * @internal
+   */
   makeDiagnostic(
     code: number,
     messageText: string,
@@ -491,6 +546,9 @@ export class ConfigSet {
     }
   }
 
+  /**
+   * @internal
+   */
   readTsConfig(
     compilerOptions?: object,
     resolvedConfigFile?: string | null,
@@ -608,31 +666,9 @@ export class ConfigSet {
     return path
   }
 
-  @Memoize()
-  get jsonValue() {
-    const jest = { ...this.jest }
-    const globals = (jest.globals = { ...jest.globals } as any)
-    // we need to remove some stuff from jest config
-    // this which does not depend on config
-    delete jest.name
-    delete jest.cacheDirectory
-    // we do not need this since its normalized version is in tsJest
-    delete globals['ts-jest']
-
-    return new JsonableValue({
-      versions: this.versions,
-      transformers: this.astTransformers.map(t => `${t.name}@${t.version}`),
-      jest,
-      tsJest: this.tsJest,
-      babel: this.babel,
-      tsconfig: this.tsconfig,
-    })
-  }
-
-  get cacheKey(): string {
-    return this.jsonValue.serialized
-  }
-
+  /**
+   * @internal
+   */
   toJSON() {
     return this.jsonValue.value
   }

src/index.ts

@@ -5,47 +5,53 @@ import { TsJestGlobalOptions } from './types'
 import { VersionCheckers } from './util/version-checkers'
 
 // tslint:disable-next-line:no-var-requires
-const version: string = require('../package.json').version
+export const version: string = require('../package.json').version
 
 let transformer!: TsJestTransformer
 function defaultTransformer(): TsJestTransformer {
   return transformer || (transformer = createTransformer())
 }
 
-function createTransformer(baseConfig?: TsJestGlobalOptions) {
+export function createTransformer(baseConfig?: TsJestGlobalOptions) {
   VersionCheckers.jest.warn()
   return new TsJestTransformer(baseConfig)
 }
-function tsProcess(...args: any[]): any {
+/**
+ * @internal
+ */
+export function process(...args: any[]): any {
   return (defaultTransformer().process as any)(...args)
 }
-function getCacheKey(...args: any[]): any {
+/**
+ * @internal
+ */
+export function getCacheKey(...args: any[]): any {
   return (defaultTransformer().getCacheKey as any)(...args)
 }
 
+/**
+ * @internal
+ */
 // we let jest doing the instrumentation, it does it well
-const canInstrument = false
+export const canInstrument = false
 
 const jestPreset = createJestPreset()
 
+/**
+ * @internal
+ */
 // for tests
 // tslint:disable-next-line:variable-name
-const __singleton = () => transformer
+export const __singleton = () => transformer
+/**
+ * @internal
+ */
 // tslint:disable-next-line:variable-name
-const __resetModule = () => (transformer = undefined as any)
+export const __resetModule = () => (transformer = undefined as any)
 
 export {
-  version,
-  // jest API ===============
-  createTransformer,
-  tsProcess as process,
-  getCacheKey,
-  canInstrument,
   // extra ==================
   createJestPreset,
   jestPreset,
   pathsToModuleNameMapper,
-  // tests ==================
-  __singleton,
-  __resetModule,
 }

src/transformers/hoist-jest.ts

@@ -19,13 +19,20 @@ import { ConfigSet } from '../config/config-set'
  */
 const HOIST_METHODS = ['mock', 'unmock']
 
+/**
+ * @internal
+ */
 export const name = 'hoisting-jest-mock'
 // increment this each time the code is modified
+/**
+ * @internal
+ */
 export const version = 1
 
 /**
  * The factory of hoisting transformer factory
  * @param cs Current jest configuration-set
+ * @internal
  */
 export function factory(cs: ConfigSet) {
   const logger = cs.logger.child({ namespace: 'ts-hoisting' })

src/transformers/index.ts

@@ -2,4 +2,7 @@ import { AstTransformerDesc } from '../types'
 
 import * as hoisting from './hoist-jest'
 
+/**
+ * @internal
+ */
 export const internals: AstTransformerDesc[] = [hoisting]

src/ts-jest-transformer.ts

@@ -20,11 +20,20 @@ interface ConfigSetIndexItem {
 }
 
 export class TsJestTransformer implements jest.Transformer {
+  /**
+   * @internal
+   */
   private static readonly _configSetsIndex: ConfigSetIndexItem[] = []
+  /**
+   * @internal
+   */
   private static _lastTransformerId = 0
   static get lastTransformerId() {
     return TsJestTransformer._lastTransformerId
   }
+  /**
+   * @internal
+   */
   private static get _nextTransformerId() {
     return ++TsJestTransformer._lastTransformerId
   }
@@ -43,6 +52,9 @@ export class TsJestTransformer implements jest.Transformer {
     this.logger.debug({ baseOptions }, 'created new transformer')
   }
 
+  /**
+   * @internal
+   */
   /* istanbul ignore next */
   [INSPECT_CUSTOM]() {
     return `[object TsJestTransformer<#${this.id}>]`