stream: refactor to use more primordials

PR-URL: #36346 Reviewed-By: Zijian Liu <lxxyxzj@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com>
nodejs · Feb 1, 2021 · 419686c · 419686c
1 parent e6fbe48
commit 419686c
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Showing 12 changed files with 112 additions and 80 deletions.
diff --git a/lib/internal/streams/buffer_list.js b/lib/internal/streams/buffer_list.js
@@ -1,7 +1,9 @@
 'use strict';
 
 const {
+  StringPrototypeSlice,
   SymbolIterator,
+  TypedArrayPrototypeSet,
   Uint8Array,
 } = primordials;
 
@@ -67,7 +69,7 @@ module.exports = class BufferList {
     let p = this.head;
     let i = 0;
     while (p) {
-      ret.set(p.data, i);
+      TypedArrayPrototypeSet(ret, p.data, i);
       i += p.data.length;
       p = p.next;
     }
@@ -120,9 +122,9 @@ module.exports = class BufferList {
           else
             this.head = this.tail = null;
         } else {
-          ret += str.slice(0, n);
+          ret += StringPrototypeSlice(str, 0, n);
           this.head = p;
-          p.data = str.slice(n);
+          p.data = StringPrototypeSlice(str, n);
         }
         break;
       }
@@ -141,18 +143,20 @@ module.exports = class BufferList {
     do {
       const buf = p.data;
       if (n > buf.length) {
-        ret.set(buf, retLen - n);
+        TypedArrayPrototypeSet(ret, buf, retLen - n);
         n -= buf.length;
       } else {
         if (n === buf.length) {
-          ret.set(buf, retLen - n);
+          TypedArrayPrototypeSet(ret, buf, retLen - n);
           ++c;
           if (p.next)
             this.head = p.next;
           else
             this.head = this.tail = null;
         } else {
-          ret.set(new Uint8Array(buf.buffer, buf.byteOffset, n), retLen - n);
+          TypedArrayPrototypeSet(ret,
+                                 new Uint8Array(buf.buffer, buf.byteOffset, n),
+                                 retLen - n);
           this.head = p;
           p.data = buf.slice(n);
         }

diff --git a/lib/internal/streams/destroy.js b/lib/internal/streams/destroy.js
@@ -3,7 +3,10 @@
 const {
   ERR_MULTIPLE_CALLBACK
 } = require('internal/errors').codes;
-const { Symbol } = primordials;
+const {
+  FunctionPrototypeCall,
+  Symbol,
+} = primordials;
 
 const kDestroy = Symbol('kDestroy');
 const kConstruct = Symbol('kConstruct');
@@ -93,7 +96,8 @@ function _destroy(self, err, cb) {
     try {
       const then = result.then;
       if (typeof then === 'function') {
-        then.call(
+        FunctionPrototypeCall(
+          then,
           result,
           function() {
             if (called)
@@ -311,7 +315,8 @@ function constructNT(stream) {
     try {
       const then = result.then;
       if (typeof then === 'function') {
-        then.call(
+        FunctionPrototypeCall(
+          then,
           result,
           function() {
             // If the callback was invoked, do nothing further.

diff --git a/lib/internal/streams/end-of-stream.js b/lib/internal/streams/end-of-stream.js
@@ -3,6 +3,10 @@
 
 'use strict';
 
+const {
+  FunctionPrototype,
+  FunctionPrototypeCall,
+} = primordials;
 const {
   ERR_STREAM_PREMATURE_CLOSE
 } = require('internal/errors').codes;
@@ -53,7 +57,7 @@ function isWritableFinished(stream) {
   return wState.finished || (wState.ended && wState.length === 0);
 }
 
-function nop() {}
+const nop = FunctionPrototype;
 
 function isReadableEnded(stream) {
   if (stream.readableEnded) return true;
@@ -110,7 +114,7 @@ function eos(stream, options, callback) {
     if (stream.destroyed) willEmitClose = false;
 
     if (willEmitClose && (!stream.readable || readable)) return;
-    if (!readable || readableEnded) callback.call(stream);
+    if (!readable || readableEnded) FunctionPrototypeCall(callback, stream);
   };
 
   let readableEnded = stream.readableEnded ||
@@ -123,23 +127,25 @@ function eos(stream, options, callback) {
     if (stream.destroyed) willEmitClose = false;
 
     if (willEmitClose && (!stream.writable || writable)) return;
-    if (!writable || writableFinished) callback.call(stream);
+    if (!writable || writableFinished) FunctionPrototypeCall(callback, stream);
   };
 
   const onerror = (err) => {
-    callback.call(stream, err);
+    FunctionPrototypeCall(callback, stream, err);
   };
 
   const onclose = () => {
     if (readable && !readableEnded) {
       if (!isReadableEnded(stream))
-        return callback.call(stream, new ERR_STREAM_PREMATURE_CLOSE());
+        return FunctionPrototypeCall(callback, stream,
+                                     new ERR_STREAM_PREMATURE_CLOSE());
     }
     if (writable && !writableFinished) {
       if (!isWritableFinished(stream))
-        return callback.call(stream, new ERR_STREAM_PREMATURE_CLOSE());
+        return FunctionPrototypeCall(callback, stream,
+                                     new ERR_STREAM_PREMATURE_CLOSE());
     }
-    callback.call(stream);
+    FunctionPrototypeCall(callback, stream);
   };
 
   const onrequest = () => {

diff --git a/lib/internal/streams/from.js b/lib/internal/streams/from.js
@@ -1,6 +1,7 @@
 'use strict';
 
 const {
+  PromisePrototypeThen,
   SymbolAsyncIterator,
   SymbolIterator
 } = primordials;
@@ -55,7 +56,8 @@ function from(Readable, iterable, opts) {
   readable._destroy = function(error, cb) {
     if (needToClose) {
       needToClose = false;
-      close().then(
+      PromisePrototypeThen(
+        close(),
         () => process.nextTick(cb, error),
         (e) => process.nextTick(cb, error || e),
       );

diff --git a/lib/internal/streams/lazy_transform.js b/lib/internal/streams/lazy_transform.js
@@ -4,6 +4,7 @@
 'use strict';
 
 const {
+  FunctionPrototypeCall,
   ObjectDefineProperties,
   ObjectDefineProperty,
   ObjectSetPrototypeOf,
@@ -25,7 +26,7 @@ ObjectSetPrototypeOf(LazyTransform, stream.Transform);
 
 function makeGetter(name) {
   return function() {
-    stream.Transform.call(this, this._options);
+    FunctionPrototypeCall(stream.Transform, this, this._options);
     this._writableState.decodeStrings = false;
 
     if (!this._options || !this._options.defaultEncoding) {

diff --git a/lib/internal/streams/legacy.js b/lib/internal/streams/legacy.js
@@ -2,13 +2,15 @@
 
 const {
   ArrayIsArray,
+  ArrayPrototypeUnshift,
+  FunctionPrototypeCall,
   ObjectSetPrototypeOf,
 } = primordials;
 
 const EE = require('events');
 
 function Stream(opts) {
-  EE.call(this, opts);
+  FunctionPrototypeCall(EE, this, opts);
 }
 ObjectSetPrototypeOf(Stream.prototype, EE.prototype);
 ObjectSetPrototypeOf(Stream, EE);
@@ -106,7 +108,7 @@ function prependListener(emitter, event, fn) {
   if (!emitter._events || !emitter._events[event])
     emitter.on(event, fn);
   else if (ArrayIsArray(emitter._events[event]))
-    emitter._events[event].unshift(fn);
+    ArrayPrototypeUnshift(emitter._events[event], fn);
   else
     emitter._events[event] = [fn, emitter._events[event]];
 }

diff --git a/lib/internal/streams/passthrough.js b/lib/internal/streams/passthrough.js
@@ -26,6 +26,7 @@
 'use strict';
 
 const {
+  FunctionPrototypeCall,
   ObjectSetPrototypeOf,
 } = primordials;
 
@@ -39,7 +40,7 @@ function PassThrough(options) {
   if (!(this instanceof PassThrough))
     return new PassThrough(options);
 
-  Transform.call(this, options);
+  FunctionPrototypeCall(Transform, this, options);
 }
 
 PassThrough.prototype._transform = function(chunk, encoding, cb) {

diff --git a/lib/internal/streams/pipeline.js b/lib/internal/streams/pipeline.js
@@ -5,6 +5,10 @@
 
 const {
   ArrayIsArray,
+  ArrayPrototypePop,
+  ArrayPrototypePush,
+  ArrayPrototypeShift,
+  FunctionPrototypeCall,
   ReflectApply,
   SymbolAsyncIterator,
   SymbolIterator,
@@ -75,7 +79,7 @@ function popCallback(streams) {
   // a single stream. Therefore optimize for the average case instead of
   // checking for length === 0 as well.
   validateCallback(streams[streams.length - 1]);
-  return streams.pop();
+  return ArrayPrototypePop(streams);
 }
 
 function isReadable(obj) {
@@ -114,7 +118,7 @@ async function* fromReadable(val) {
     Readable = require('internal/streams/readable');
   }
 
-  yield* Readable.prototype[SymbolAsyncIterator].call(val);
+  yield* FunctionPrototypeCall(Readable.prototype[SymbolAsyncIterator], val);
 }
 
 async function pump(iterable, writable, finish) {
@@ -171,7 +175,7 @@ function pipeline(...streams) {
     }
 
     while (destroys.length) {
-      destroys.shift()(error);
+      ArrayPrototypeShift(destroys)(error);
     }
 
     if (final) {
@@ -187,7 +191,7 @@ function pipeline(...streams) {
 
     if (isStream(stream)) {
       finishCount++;
-      destroys.push(destroyer(stream, reading, writing, finish));
+      ArrayPrototypePush(destroys, destroyer(stream, reading, writing, finish));
     }
 
     if (i === 0) {
@@ -250,7 +254,7 @@ function pipeline(...streams) {
         ret = pt;
 
         finishCount++;
-        destroys.push(destroyer(ret, false, true, finish));
+        ArrayPrototypePush(destroys, destroyer(ret, false, true, finish));
       }
     } else if (isStream(stream)) {
       if (isReadable(ret)) {