Web Streams API (#176)

* [bun.js] `WritableStream`, `ReadableStream`, `TransformStream`, `WritableStreamDefaultController`, `ReadableStreamDefaultController` & more

* Implement `Blob.stream()`

* Update streams.test.js

* Fix sourcemaps crash

* [TextEncoder] 3x faster in hot loops

* reading almost works

* start to implement native streams

* Implement `Blob.stream()`

* Implement `Bun.file(pathOrFd).stream()`

* Add an extra function

* [fs.readFile] Improve performance

* make jsc bindings a little easier to work with

* fix segfault

* faster async/await + readablestream optimizations

* WebKit updates

* More WebKit updates

* Add releaseWEakrefs binding

* `bun:jsc`

* More streams

* Update streams.test.js

* Update Makefile

* Update mimalloc

* Update WebKit

* Create bun-jsc.test.js

* Faster ReadableStream

* Fix off by one & exceptions

* Handle empty files/blobs

* Update streams.test.js

* Move streams to it's own file

* temp

* impl #1

* take two

* good enough for now

* Implement `readableStreamToArray`, `readableStreamToArrayBuffer`, `concatArrayBuffers`

* jsxOptimizationInlining

* Fix crash

* Add `jsxOptimizationInline` to Bun.Transpiler

* Update Transpiler types

* Update js_ast.zig

* Automatically choose production mode when NODE_ENV="production"

* Update cli.zig

* [jsx] Handle defaultProps when inlining

* Update transpiler.test.js

* uncomment some tests

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>

1 files changed, 165 insertions, 0 deletions

diff --git a/src/javascript/jsc/bindings/builtins/js/ReadableStreamDefaultReader.js b/src/javascript/jsc/bindings/builtins/js/ReadableStreamDefaultReader.js
new file mode 100644
index 000000000..118376ffb
--- /dev/null
+++ b/src/javascript/jsc/bindings/builtins/js/ReadableStreamDefaultReader.js
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2015 Canon Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+function initializeReadableStreamDefaultReader(stream)
+{
+    "use strict";
+
+    if (!@isReadableStream(stream))
+        @throwTypeError("ReadableStreamDefaultReader needs a ReadableStream");
+    if (@isReadableStreamLocked(stream))
+        @throwTypeError("ReadableStream is locked");
+
+    @readableStreamReaderGenericInitialize(this, stream);
+    @putByIdDirectPrivate(this, "readRequests", @createFIFO());
+
+    return this;
+}
+
+function cancel(reason)
+{
+    "use strict";
+
+    if (!@isReadableStreamDefaultReader(this))
+        return @Promise.@reject(@makeThisTypeError("ReadableStreamDefaultReader", "cancel"));
+
+    if (!@getByIdDirectPrivate(this, "ownerReadableStream"))
+        return @Promise.@reject(@makeTypeError("cancel() called on a reader owned by no readable stream"));
+
+    return @readableStreamReaderGenericCancel(this, reason);
+}
+
+function readMany()
+{
+    "use strict";
+
+    if (!@isReadableStreamDefaultReader(this))
+        @throwTypeError("ReadableStreamDefaultReader.readMany() should not be called directly");
+
+    const stream = @getByIdDirectPrivate(this, "ownerReadableStream");
+    if (!stream)
+        @throwTypeError("readMany() called on a reader owned by no readable stream");
+
+    const state = @getByIdDirectPrivate(stream, "state");
+    @putByIdDirectPrivate(stream, "disturbed", true);
+    if (state === @streamClosed)
+        return {value: [], size: 0, done: true};
+    else if (state === @streamErrored) {
+        throw @getByIdDirectPrivate(stream, "storedError");
+    }
+
+    
+    var controller = @getByIdDirectPrivate(stream, "readableStreamController");
+
+    const content = @getByIdDirectPrivate(controller, "queue").content;
+    var size = @getByIdDirectPrivate(controller, "queue").size;
+    var values = content.toArray(false);
+    var length = values.length;
+    
+
+    if (length > 0) {
+        
+        @resetQueue(@getByIdDirectPrivate(controller, "queue"));
+
+        
+        if (@getByIdDirectPrivate(controller, "closeRequested"))
+            @readableStreamClose(@getByIdDirectPrivate(controller, "controlledReadableStream"));
+        else if (@isReadableStreamDefaultController(controller)) 
+            @readableStreamDefaultControllerCallPullIfNeeded(controller);
+        else if (@isReadableByteStreamController(controller))
+            @readableByteStreamControllerCallPullIfNeeded(controller);
+
+        return {value: values, size, done: false};
+    }
+
+    var onPullMany = (result) => {
+        if (result.done) {
+            return {value: [], size: 0, done: true};
+        }
+        var controller = @getByIdDirectPrivate(stream, "readableStreamController");
+        
+        var queue = @getByIdDirectPrivate(controller, "queue");
+        var value = [result.value].concat(queue.content.toArray(false));
+        var size = queue.size;
+        @resetQueue(queue);
+
+        if (@getByIdDirectPrivate(controller, "closeRequested"))
+            @readableStreamClose(@getByIdDirectPrivate(controller, "controlledReadableStream"));
+        else if (@isReadableStreamDefaultController(controller)) 
+            @readableStreamDefaultControllerCallPullIfNeeded(controller);
+        else if (@isReadableByteStreamController(controller))
+            @readableByteStreamControllerCallPullIfNeeded(controller);
+        
+
+        
+        return {value: value, size: size, done: false};
+    };
+    
+    var pullResult = controller.@pull(controller);
+    if (pullResult && @isPromise(pullResult)) {
+        return pullResult.@then(onPullMany);
+    }
+
+    return onPullMany(pullResult);
+}
+
+function read()
+{
+    "use strict";
+
+    if (!@isReadableStreamDefaultReader(this))
+        return @Promise.@reject(@makeThisTypeError("ReadableStreamDefaultReader", "read"));
+    if (!@getByIdDirectPrivate(this, "ownerReadableStream"))
+        return @Promise.@reject(@makeTypeError("read() called on a reader owned by no readable stream"));
+
+    return @readableStreamDefaultReaderRead(this);
+}
+
+function releaseLock()
+{
+    "use strict";
+
+    if (!@isReadableStreamDefaultReader(this))
+        throw @makeThisTypeError("ReadableStreamDefaultReader", "releaseLock");
+
+    if (!@getByIdDirectPrivate(this, "ownerReadableStream"))
+        return;
+
+    if (@getByIdDirectPrivate(this, "readRequests")?.isNotEmpty())
+        @throwTypeError("There are still pending read requests, cannot release the lock");
+
+    @readableStreamReaderGenericRelease(this);
+}
+
+@getter
+function closed()
+{
+    "use strict";
+
+    if (!@isReadableStreamDefaultReader(this))
+        return @Promise.@reject(@makeGetterTypeError("ReadableStreamDefaultReader", "closed"));
+
+    return @getByIdDirectPrivate(this, "closedPromiseCapability").@promise;
+}