lib: refactor to reuse validators

lib/_http_agent.js

@@ -51,12 +51,15 @@ const { AsyncResource } = require('async_hooks');
 const { async_id_symbol } = require('internal/async_hooks').symbols;
 const {
   codes: {
-    ERR_INVALID_ARG_TYPE,
     ERR_OUT_OF_RANGE,
   },
 } = require('internal/errors');
 const { once } = require('internal/util');
-const { validateNumber, validateOneOf } = require('internal/validators');
+const {
+  validateNumber,
+  validateOneOf,
+  validateString
+} = require('internal/validators');
 
 const kOnKeylog = Symbol('onkeylog');
 const kRequestOptions = Symbol('requestOptions');
@@ -344,10 +347,7 @@ function calculateServerName(options, req) {
   let servername = options.host;
   const hostHeader = req.getHeader('host');
   if (hostHeader) {
-    if (typeof hostHeader !== 'string') {
-      throw new ERR_INVALID_ARG_TYPE('options.headers.host',
-                                     'String', hostHeader);
-    }
+    validateString(hostHeader, 'options.headers.host');
 
     // abc => abc
     // abc:123 => abc

lib/_tls_wrap.js

@@ -90,6 +90,9 @@ const {
   validateObject,
   validateString,
   validateUint32,
+  validateBoolean,
+  validateNumber,
+  validateFunction
 } = require('internal/validators');
 const {
   InternalX509Certificate
@@ -468,10 +471,8 @@ function TLSSocket(socket, opts) {
       process.emitWarning('Enabling --trace-tls can expose sensitive data in ' +
                           'the resulting log.');
     }
-  } else if (typeof enableTrace !== 'boolean') {
-    throw new ERR_INVALID_ARG_TYPE(
-      'options.enableTrace', 'boolean', enableTrace);
-  }
+  } else
+    validateBoolean(enableTrace, 'options.enableTrace');
 
   if (tlsOptions.ALPNProtocols)
     tls.convertALPNProtocols(tlsOptions.ALPNProtocols, tlsOptions);
@@ -783,11 +784,7 @@ TLSSocket.prototype._init = function(socket, wrap) {
   }
 
   if (options.pskCallback && ssl.enablePskCallback) {
-    if (typeof options.pskCallback !== 'function') {
-      throw new ERR_INVALID_ARG_TYPE('pskCallback',
-                                     'function',
-                                     options.pskCallback);
-    }
+    validateFunction(options.pskCallback, 'pskCallback');
 
     ssl[kOnPskExchange] = options.isServer ?
       onPskServerCallback : onPskClientCallback;
@@ -796,13 +793,7 @@ TLSSocket.prototype._init = function(socket, wrap) {
     ssl.enablePskCallback();
 
     if (options.pskIdentityHint) {
-      if (typeof options.pskIdentityHint !== 'string') {
-        throw new ERR_INVALID_ARG_TYPE(
-          'options.pskIdentityHint',
-          'string',
-          options.pskIdentityHint
-        );
-      }
+      validateString(options.pskIdentityHint, 'options.pskIdentityHint');
       ssl.setPskIdentityHint(options.pskIdentityHint);
     }
   }
@@ -1215,10 +1206,7 @@ function Server(options, listener) {
   this[kPskCallback] = options.pskCallback;
   this[kPskIdentityHint] = options.pskIdentityHint;
 
-  if (typeof this[kHandshakeTimeout] !== 'number') {
-    throw new ERR_INVALID_ARG_TYPE(
-      'options.handshakeTimeout', 'number', options.handshakeTimeout);
-  }
+  validateNumber(this[kHandshakeTimeout], 'options.handshakeTimeout');
 
   if (this[kSNICallback] && typeof this[kSNICallback] !== 'function') {
     throw new ERR_INVALID_ARG_TYPE(

lib/events.js

@@ -63,6 +63,7 @@ const {
 const {
   validateAbortSignal,
   validateFunction,
+  validateBoolean
 } = require('internal/validators');
 
 const kCapture = Symbol('kCapture');
@@ -89,10 +90,7 @@ ObjectDefineProperty(EventEmitter, 'captureRejections', {
     return EventEmitter.prototype[kCapture];
   },
   set(value) {
-    if (typeof value !== 'boolean') {
-      throw new ERR_INVALID_ARG_TYPE('EventEmitter.captureRejections',
-                                     'boolean', value);
-    }
+    validateBoolean(value, 'EventEmitter.captureRejections');
 
     EventEmitter.prototype[kCapture] = value;
   },
@@ -190,10 +188,7 @@ EventEmitter.init = function(opts) {
 
 
   if (opts?.captureRejections) {
-    if (typeof opts.captureRejections !== 'boolean') {
-      throw new ERR_INVALID_ARG_TYPE('options.captureRejections',
-                                     'boolean', opts.captureRejections);
-    }
+    validateBoolean(opts.captureRejections, 'options.captureRejections');
     this[kCapture] = Boolean(opts.captureRejections);
   } else {
     // Assigning the kCapture property directly saves an expensive

lib/internal/perf/timerify.js

@@ -15,7 +15,8 @@ const {
 } = require('internal/perf/perf');
 
 const {
-  validateObject
+  validateObject,
+  validateFunction
 } = require('internal/validators');
 
 const {
@@ -57,8 +58,7 @@ function processComplete(name, start, args, histogram) {
 }
 
 function timerify(fn, options = {}) {
-  if (typeof fn !== 'function')
-    throw new ERR_INVALID_ARG_TYPE('fn', 'function', fn);
+  validateFunction(fn, 'fn');
 
   validateObject(options, 'options');
   const {

lib/internal/process/per_thread.js

@@ -44,6 +44,7 @@ const format = require('internal/util/inspect').format;
 const {
   validateArray,
   validateObject,
+  validateNumber
 } = require('internal/validators');
 const constants = internalBinding('constants').os.signals;
 
@@ -122,19 +123,13 @@ function wrapProcessMethods(binding) {
       if (!previousValueIsValid(prevValue.user)) {
         validateObject(prevValue, 'prevValue');
 
-        if (typeof prevValue.user !== 'number') {
-          throw new ERR_INVALID_ARG_TYPE('prevValue.user',
-                                         'number', prevValue.user);
-        }
+        validateNumber(prevValue.user, 'prevValue.user');
         throw new ERR_INVALID_ARG_VALUE.RangeError('prevValue.user',
                                                    prevValue.user);
       }
 
       if (!previousValueIsValid(prevValue.system)) {
-        if (typeof prevValue.system !== 'number') {
-          throw new ERR_INVALID_ARG_TYPE('prevValue.system',
-                                         'number', prevValue.system);
-        }
+        validateNumber(prevValue.system, 'prevValue.system');
         throw new ERR_INVALID_ARG_VALUE.RangeError('prevValue.system',
                                                    prevValue.system);
       }

lib/internal/util.js

@@ -36,6 +36,7 @@ const {
   uvErrmapGet,
   overrideStackTrace,
 } = require('internal/errors');
+const { validateFunction } = require('internal/validators');
 const { signals } = internalBinding('constants').os;
 const {
   getHiddenValue,
@@ -300,14 +301,11 @@ const kCustomPromisifiedSymbol = SymbolFor('nodejs.util.promisify.custom');
 const kCustomPromisifyArgsSymbol = Symbol('customPromisifyArgs');
 
 function promisify(original) {
-  if (typeof original !== 'function')
-    throw new ERR_INVALID_ARG_TYPE('original', 'Function', original);
+  validateFunction(original, 'original');
 
   if (original[kCustomPromisifiedSymbol]) {
     const fn = original[kCustomPromisifiedSymbol];
-    if (typeof fn !== 'function') {
-      throw new ERR_INVALID_ARG_TYPE('util.promisify.custom', 'Function', fn);
-    }
+    validateFunction(fn, 'util.promisify.custom');
     return ObjectDefineProperty(fn, kCustomPromisifiedSymbol, {
       value: fn, enumerable: false, writable: false, configurable: true
     });

lib/util.js

@@ -60,7 +60,10 @@ const {
   inspect
 } = require('internal/util/inspect');
 const { debuglog } = require('internal/util/debuglog');
-const { validateNumber } = require('internal/validators');
+const {
+  validateNumber,
+  validateFunction
+} = require('internal/validators');
 const { TextDecoder, TextEncoder } = require('internal/encoding');
 const { isBuffer } = require('buffer').Buffer;
 const types = require('internal/util/types');
@@ -285,18 +288,14 @@ const callbackifyOnRejected = hideStackFrames((reason, cb) => {
  * }
  */
 function callbackify(original) {
-  if (typeof original !== 'function') {
-    throw new ERR_INVALID_ARG_TYPE('original', 'Function', original);
-  }
+  validateFunction(original, 'original');
 
   // We DO NOT return the promise as it gives the user a false sense that
   // the promise is actually somehow related to the callback's execution
   // and that the callback throwing will reject the promise.
   function callbackified(...args) {
     const maybeCb = ArrayPrototypePop(args);
-    if (typeof maybeCb !== 'function') {
-      throw new ERR_INVALID_ARG_TYPE('last argument', 'Function', maybeCb);
-    }
+    validateFunction(maybeCb, 'last argument');
     const cb = FunctionPrototypeBind(maybeCb, this);
     // In true node style we process the callback on `nextTick` with all the
     // implications (stack, `uncaughtException`, `async_hooks`)

lib/vm.js

@@ -54,6 +54,7 @@ const {
   validateBuffer,
   validateObject,
   validateOneOf,
+  validateFunction
 } = require('internal/validators');
 const {
   kVmBreakFirstLineSymbol,
@@ -108,11 +109,8 @@ class Script extends ContextifyScript {
     }
 
     if (importModuleDynamically !== undefined) {
-      if (typeof importModuleDynamically !== 'function') {
-        throw new ERR_INVALID_ARG_TYPE('options.importModuleDynamically',
-                                       'function',
-                                       importModuleDynamically);
-      }
+      validateFunction(importModuleDynamically,
+                       'options.importModuleDynamically');
       const { importModuleDynamicallyWrap } =
         require('internal/vm/module');
       const { callbackMap } = internalBinding('module_wrap');
@@ -373,11 +371,8 @@ function compileFunction(code, params, options = {}) {
   }
 
   if (importModuleDynamically !== undefined) {
-    if (typeof importModuleDynamically !== 'function') {
-      throw new ERR_INVALID_ARG_TYPE('options.importModuleDynamically',
-                                     'function',
-                                     importModuleDynamically);
-    }
+    validateFunction(importModuleDynamically,
+                     'options.importModuleDynamically');
     const { importModuleDynamicallyWrap } =
       require('internal/vm/module');
     const { callbackMap } = internalBinding('module_wrap');

lib/wasi.js

@@ -20,6 +20,7 @@ const {
   validateBoolean,
   validateInt32,
   validateObject,
+  validateFunction
 } = require('internal/validators');
 const { WASI: _WASI } = internalBinding('wasi');
 const kExitCode = Symbol('kExitCode');
@@ -118,10 +119,7 @@ class WASI {
 
     const { _start, _initialize } = this[kInstance].exports;
 
-    if (typeof _start !== 'function') {
-      throw new ERR_INVALID_ARG_TYPE(
-        'instance.exports._start', 'function', _start);
-    }
+    validateFunction(_start, 'instance.exports._start');
     if (_initialize !== undefined) {
       throw new ERR_INVALID_ARG_TYPE(
         'instance.exports._initialize', 'undefined', _initialize);

lib/zlib.js

@@ -71,6 +71,7 @@ const {
 const { owner_symbol } = require('internal/async_hooks').symbols;
 const {
   validateFunction,
+  validateNumber
 } = require('internal/validators');
 
 const kFlushFlag = Symbol('kFlushFlag');
@@ -212,10 +213,7 @@ const checkFiniteNumber = hideStackFrames((number, name) => {
     return false;
   }
 
-  // Other non-numbers
-  if (typeof number !== 'number') {
-    throw new ERR_INVALID_ARG_TYPE(name, 'number', number);
-  }
+  validateNumber(number, name);
 
   // Infinite numbers
   throw new ERR_OUT_OF_RANGE(name, 'a finite number', number);