stream: use synchronous error validation & validate abort signal option

made sure top level methods aren't async/generators
so that validation errors could be caught synchronously
also added validation for the abort signal option

Author: iMoses

lib/internal/streams/operators.js

@@ -10,7 +10,10 @@ const {
   },
   AbortError,
 } = require('internal/errors');
-const { validateInteger } = require('internal/validators');
+const {
+  validateAbortSignal,
+  validateInteger,
+} = require('internal/validators');
 const { kWeakHandler } = require('internal/event_target');
 const { finished } = require('internal/streams/end-of-stream');
 
@@ -33,10 +36,12 @@ function map(fn, options) {
     throw new ERR_INVALID_ARG_TYPE(
       'fn', ['Function', 'AsyncFunction'], fn);
   }
-
   if (options != null && typeof options !== 'object') {
     throw new ERR_INVALID_ARG_TYPE('options', ['Object']);
   }
+  if (options?.signal != null) {
+    validateAbortSignal(options.signal, 'options.signal');
+  }
 
   let concurrency = 1;
   if (options?.concurrency != null) {
@@ -161,17 +166,33 @@ function map(fn, options) {
   }.call(this);
 }
 
-async function* asIndexedPairs(options) {
-  let index = 0;
-  for await (const val of this) {
-    if (options?.signal?.aborted) {
-      throw new AbortError({ cause: options.signal.reason });
-    }
-    yield [index++, val];
+function asIndexedPairs(options) {
+  if (options != null && typeof options !== 'object') {
+    throw new ERR_INVALID_ARG_TYPE('options', ['Object']);
+  }
+  if (options?.signal != null) {
+    validateAbortSignal(options.signal, 'options.signal');
   }
+
+  return async function* asIndexedPairs() {
+    let index = 0;
+    for await (const val of this) {
+      if (options?.signal?.aborted) {
+        throw new AbortError({ cause: options.signal.reason });
+      }
+      yield [index++, val];
+    }
+  }.call(this);
 }
 
 async function some(fn, options) {
+  if (options != null && typeof options !== 'object') {
+    throw new ERR_INVALID_ARG_TYPE('options', ['Object']);
+  }
+  if (options?.signal != null) {
+    validateAbortSignal(options.signal, 'options.signal');
+  }
+
   // https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.some
   // Note that some does short circuit but also closes the iterator if it does
   const ac = new AbortController();
@@ -246,6 +267,13 @@ async function reduce(reducer, initialValue, options) {
     throw new ERR_INVALID_ARG_TYPE(
       'reducer', ['Function', 'AsyncFunction'], reducer);
   }
+  if (options != null && typeof options !== 'object') {
+    throw new ERR_INVALID_ARG_TYPE('options', ['Object']);
+  }
+  if (options?.signal != null) {
+    validateAbortSignal(options.signal, 'options.signal');
+  }
+
   let hasInitialValue = arguments.length > 1;
   if (options?.signal?.aborted) {
     const err = new AbortError(undefined, { cause: options.signal.reason });
@@ -283,6 +311,13 @@ async function reduce(reducer, initialValue, options) {
 }
 
 async function toArray(options) {
+  if (options != null && typeof options !== 'object') {
+    throw new ERR_INVALID_ARG_TYPE('options', ['Object']);
+  }
+  if (options?.signal != null) {
+    validateAbortSignal(options.signal, 'options.signal');
+  }
+
   const result = [];
   for await (const val of this) {
     if (options?.signal?.aborted) {
@@ -316,6 +351,13 @@ function toIntegerOrInfinity(number) {
 }
 
 function drop(number, options) {
+  if (options != null && typeof options !== 'object') {
+    throw new ERR_INVALID_ARG_TYPE('options', ['Object']);
+  }
+  if (options?.signal != null) {
+    validateAbortSignal(options.signal, 'options.signal');
+  }
+
   number = toIntegerOrInfinity(number);
   return async function* drop() {
     if (options?.signal?.aborted) {
@@ -332,8 +374,14 @@ function drop(number, options) {
   }.call(this);
 }
 
-
 function take(number, options) {
+  if (options != null && typeof options !== 'object') {
+    throw new ERR_INVALID_ARG_TYPE('options', ['Object']);
+  }
+  if (options?.signal != null) {
+    validateAbortSignal(options.signal, 'options.signal');
+  }
+
   number = toIntegerOrInfinity(number);
   return async function* take() {
     if (options?.signal?.aborted) {

test/parallel/test-stream-asIndexedPairs.mjs

@@ -1,6 +1,6 @@
 import '../common/index.mjs';
 import { Readable } from 'stream';
-import { deepStrictEqual, rejects } from 'assert';
+import { deepStrictEqual, rejects, throws } from 'assert';
 
 {
   // asIndexedPairs with a synchronous stream
@@ -45,3 +45,9 @@ import { deepStrictEqual, rejects } from 'assert';
     await Readable.from([1, 2, 3]).asIndexedPairs({ signal }).toArray();
   }, /AbortError/);
 }
+
+{
+  // Error cases
+  throws(() => Readable.from([1]).asIndexedPairs(1), /ERR_INVALID_ARG_TYPE/);
+  throws(() => Readable.from([1]).asIndexedPairs({ signal: true }), /ERR_INVALID_ARG_TYPE/);
+}

test/parallel/test-stream-drop-take.js

@@ -93,4 +93,10 @@ const naturals = () => from(async function*() {
   for (const example of invalidArgs) {
     throws(() => from([]).take(example).toArray(), /ERR_OUT_OF_RANGE/);
   }
+
+  throws(() => Readable.from([1]).drop(1, 1), /ERR_INVALID_ARG_TYPE/);
+  throws(() => Readable.from([1]).drop(1, { signal: true }), /ERR_INVALID_ARG_TYPE/);
+
+  throws(() => Readable.from([1]).take(1, 1), /ERR_INVALID_ARG_TYPE/);
+  throws(() => Readable.from([1]).take(1, { signal: true }), /ERR_INVALID_ARG_TYPE/);
 }

test/parallel/test-stream-flatMap.js

@@ -114,6 +114,7 @@ function oneTo5() {
     concurrency: 'Foo'
   }), /ERR_OUT_OF_RANGE/);
   assert.throws(() => Readable.from([1]).flatMap((x) => x, 1), /ERR_INVALID_ARG_TYPE/);
+  assert.throws(() => Readable.from([1]).flatMap((x) => x, { signal: true }), /ERR_INVALID_ARG_TYPE/);
 }
 {
   // Test result is a Readable

test/parallel/test-stream-map.js

@@ -180,6 +180,7 @@ const { setTimeout } = require('timers/promises');
     concurrency: 'Foo'
   }), /ERR_OUT_OF_RANGE/);
   assert.throws(() => Readable.from([1]).map((x) => x, 1), /ERR_INVALID_ARG_TYPE/);
+  assert.throws(() => Readable.from([1]).map((x) => x, { signal: true }), /ERR_INVALID_ARG_TYPE/);
 }
 {
   // Test result is a Readable

test/parallel/test-stream-reduce.js

@@ -121,6 +121,8 @@ function sum(p, c) {
   // Error cases
   assert.rejects(() => Readable.from([]).reduce(1), /TypeError/);
   assert.rejects(() => Readable.from([]).reduce('5'), /TypeError/);
+  assert.rejects(() => Readable.from([]).reduce((x, y) => x + y, 0, 1), /ERR_INVALID_ARG_TYPE/);
+  assert.rejects(() => Readable.from([]).reduce((x, y) => x + y, 0, { signal: true }), /ERR_INVALID_ARG_TYPE/);
 }
 
 {

test/parallel/test-stream-some-every.js

@@ -87,6 +87,17 @@ function oneTo5Async() {
   assert.rejects(async () => {
     await Readable.from([1]).every(1);
   }, /ERR_INVALID_ARG_TYPE/).then(common.mustCall());
+
+  assert.rejects(async () => {
+    await Readable.from([1]).every((x) => x, 1);
+  }, /ERR_INVALID_ARG_TYPE/).then(common.mustCall());
+
+  assert.rejects(async () => {
+    await Readable.from([1]).every((x) => x, {
+      signal: true
+    });
+  }, /ERR_INVALID_ARG_TYPE/).then(common.mustCall());
+
   assert.rejects(async () => {
     await Readable.from([1]).every((x) => x, {
       concurrency: 'Foo'

test/parallel/test-stream-toArray.js

@@ -79,3 +79,15 @@ const assert = require('assert');
   const result = Readable.from([1, 2, 3, 4, 5]).toArray();
   assert.strictEqual(result instanceof Promise, true);
 }
+{
+  // Error cases
+  assert.rejects(async () => {
+    await Readable.from([1]).toArray(1);
+  }, /ERR_INVALID_ARG_TYPE/).then(common.mustCall());
+
+  assert.rejects(async () => {
+    await Readable.from([1]).toArray({
+      signal: true
+    });
+  }, /ERR_INVALID_ARG_TYPE/).then(common.mustCall());
+}