Move streams to it's own file

1 files changed, 17 insertions, 1146 deletions

diff --git a/src/javascript/jsc/webcore/response.zig b/src/javascript/jsc/webcore/response.zig
index d85139525..8d854d2f6 100644
--- a/src/javascript/jsc/webcore/response.zig
+++ b/src/javascript/jsc/webcore/response.zig
@@ -1020,98 +1020,6 @@ pub const Fetch = struct {
     }
 };
 
-pub const ReadableStream = struct {
-    pub const Tag = enum(i32) {
-        Blob = 1,
-        File = 2,
-    };
-
-    extern fn ZigGlobalObject__createNativeReadableStream(*JSGlobalObject, nativePtr: JSValue, nativeType: JSValue) JSValue;
-
-    pub fn fromNative(globalThis: *JSGlobalObject, id: Tag, ptr: *anyopaque) JSC.JSValue {
-        return ZigGlobalObject__createNativeReadableStream(globalThis, JSValue.fromPtr(ptr), JSValue.jsNumber(@enumToInt(id)));
-    }
-    pub fn fromBlob(globalThis: *JSGlobalObject, blob: *const Blob, recommended_chunk_size: Blob.SizeType) JSC.JSValue {
-        if (comptime JSC.is_bindgen)
-            unreachable;
-        var store = blob.store orelse {
-            return ReadableStream.empty(globalThis);
-        };
-        switch (store.data) {
-            .bytes => {
-                var reader = bun.default_allocator.create(ByteBlobLoader.Source) catch unreachable;
-                reader.* = .{
-                    .context = undefined,
-                };
-                reader.context.setup(blob, recommended_chunk_size);
-                return reader.toJS(globalThis);
-            },
-            .file => {
-                var reader = bun.default_allocator.create(FileBlobLoader.Source) catch unreachable;
-                reader.* = .{
-                    .context = undefined,
-                };
-                reader.context.setup(store, recommended_chunk_size);
-                return reader.toJS(globalThis);
-            },
-        }
-    }
-
-    pub fn empty(globalThis: *JSGlobalObject) JSC.JSValue {
-        if (comptime JSC.is_bindgen)
-            unreachable;
-
-        return ReadableStream__empty(globalThis);
-    }
-
-    extern fn ReadableStream__empty(*JSGlobalObject) JSC.JSValue;
-    extern fn ReadableStream__fromBlob(
-        *JSGlobalObject,
-        store: *anyopaque,
-        offset: usize,
-        length: usize,
-    ) JSC.JSValue;
-    const Base = @import("../../../ast/base.zig");
-    pub const StreamTag = enum(usize) {
-        invalid = 0,
-        _,
-
-        pub fn init(filedes: JSC.Node.FileDescriptor) StreamTag {
-            var bytes = [8]u8{ 1, 0, 0, 0, 0, 0, 0, 0 };
-            const filedes_ = @bitCast([8]u8, @as(usize, @truncate(u56, @intCast(usize, filedes))));
-            bytes[1..8].* = filedes_[0..7].*;
-
-            return @intToEnum(StreamTag, @bitCast(u64, bytes));
-        }
-
-        pub fn fd(this: StreamTag) JSC.Node.FileDescriptor {
-            var bytes = @bitCast([8]u8, @enumToInt(this));
-            if (bytes[0] != 1) {
-                return std.math.maxInt(JSC.Node.FileDescriptor);
-            }
-            var out: u64 = 0;
-            @bitCast([8]u8, out)[0..7].* = bytes[1..8].*;
-            return @intCast(JSC.Node.FileDescriptor, out);
-        }
-    };
-
-    // pub fn NativeReader(
-    //     comptime Context: type,
-    //     comptime onEnqueue: anytype,
-    //     comptime onClose: anytype,
-    //     comptime onAsJS: anytype,
-    // ) type {
-    //     return struct {
-    //         pub const tag = Context.tag;
-
-    //         pub fn enqueue(globalThis: *JSAGlobalObject, callframe: *const JSC.CallFrame) callconv(.C) JSC.JSValue {
-    //             var this = callframe.argument(0).asPtr(*Context);
-    //             return onEnqueue(this, globalThis, callframe.argument(1));
-    //         }
-    //     };
-    // }
-};
-
 // https://developer.mozilla.org/en-US/docs/Web/API/Headers
 pub const Headers = struct {
     pub usingnamespace HTTPClient.Headers;
@@ -2843,7 +2751,7 @@ pub const Blob = struct {
 
             recommended_chunk_size = @intCast(SizeType, @maximum(0, @truncate(i52, JSValue.c(arguments[0]).toInt64())));
         }
-        return ReadableStream.fromBlob(
+        return JSC.WebCore.ReadableStream.fromBlob(
             ctx.ptr(),
             this,
             recommended_chunk_size,
@@ -3911,7 +3819,7 @@ pub const Body = struct {
         callback: ?fn (ctx: *anyopaque, value: *Value) void = null,
         /// conditionally runs when requesting data
         /// used in HTTP server to ignore request bodies unless asked for it
-        onRequestData: ?fn (ctx: *anyopaque) void = null,
+        onPull: ?fn (ctx: *anyopaque) void = null,
         deinit: bool = false,
         action: Action = Action.none,
 
@@ -3920,9 +3828,9 @@ pub const Body = struct {
             var promise = JSC.JSPromise.create(globalThis);
             const promise_value = promise.asValue(globalThis);
             value.promise = promise_value;
-            if (value.onRequestData) |onRequestData| {
-                value.onRequestData = null;
-                onRequestData(value.task.?);
+            if (value.onPull) |onPull| {
+                value.onPull = null;
+                onPull(value.task.?);
             }
             return promise_value;
         }
@@ -4143,6 +4051,11 @@ pub const Body = struct {
             } else |_| {}
         }
 
+        if (value.as(JSC.WebCore.ReadableStream)) |readable| {
+            body.value = Body.Value.fromReadableStream(ctx, readable);
+            return body;
+        }
+
         body.value = .{
             .Blob = Blob.fromJS(ctx.ptr(), value, true, false) catch |err| {
                 if (err == error.InvalidArguments) {
@@ -4841,1055 +4754,13 @@ pub const FetchEvent = struct {
     }
 };
 
-pub const StreamStart = union(enum) {
-    empty: void,
-    err: JSC.Node.Syscall.Error,
-    chunk_size: Blob.SizeType,
-};
-
-pub const StreamResult = union(enum) {
-    owned: bun.ByteList,
-    owned_and_done: bun.ByteList,
-    temporary_and_done: bun.ByteList,
-    temporary: bun.ByteList,
-    into_array: IntoArray,
-    into_array_and_done: IntoArray,
-    pending: *Pending,
-    err: JSC.Node.Syscall.Error,
-    done: void,
-
-    pub const IntoArray = struct {
-        value: JSValue = JSValue.zero,
-        len: Blob.SizeType = std.math.maxInt(Blob.SizeType),
-    };
+pub const StreamSource = struct {
+    ptr: ?*anyopaque = null,
+    vtable: VTable,
 
-    pub const Pending = struct {
-        frame: anyframe,
-        result: StreamResult,
-        used: bool = false,
+    pub const VTable = struct {
+        onStart: fn (this: StreamSource) JSC.WebCore.StreamStart,
+        onPull: fn (this: StreamSource) JSC.WebCore.StreamResult,
+        onError: fn (this: StreamSource) void,
     };
-
-    pub fn isDone(this: *const StreamResult) bool {
-        return switch (this.*) {
-            .owned_and_done, .temporary_and_done, .into_array_and_done, .done, .err => true,
-            else => false,
-        };
-    }
-
-    fn toPromisedWrap(globalThis: *JSGlobalObject, promise: *JSPromise, pending: *Pending) void {
-        suspend {}
-
-        pending.used = true;
-        const result: StreamResult = pending.result;
-
-        switch (result) {
-            .err => |err| {
-                promise.reject(globalThis, err.toJSC(globalThis));
-            },
-            .done => {
-                promise.resolve(globalThis, JSValue.jsBoolean(false));
-            },
-            else => {
-                promise.resolve(globalThis, result.toJS(globalThis));
-            },
-        }
-    }
-
-    pub fn toPromised(globalThis: *JSGlobalObject, promise: *JSPromise, pending: *Pending) void {
-        var frame = bun.default_allocator.create(@Frame(toPromisedWrap)) catch unreachable;
-        frame.* = async toPromisedWrap(globalThis, promise, pending);
-        pending.frame = frame;
-    }
-
-    pub fn toJS(this: *const StreamResult, globalThis: *JSGlobalObject) JSValue {
-        switch (this.*) {
-            .owned => |list| {
-                return JSC.ArrayBuffer.fromBytes(list.slice(), .Uint8Array).toJS(globalThis.ref(), null);
-            },
-            .owned_and_done => |list| {
-                return JSC.ArrayBuffer.fromBytes(list.slice(), .Uint8Array).toJS(globalThis.ref(), null);
-            },
-            .temporary => |temp| {
-                var array = JSC.JSValue.createUninitializedUint8Array(globalThis, temp.len);
-                var slice = array.asArrayBuffer(globalThis).?.slice();
-                @memcpy(slice.ptr, temp.ptr, temp.len);
-                return array;
-            },
-            .temporary_and_done => |temp| {
-                var array = JSC.JSValue.createUninitializedUint8Array(globalThis, temp.len);
-                var slice = array.asArrayBuffer(globalThis).?.slice();
-                @memcpy(slice.ptr, temp.ptr, temp.len);
-                return array;
-            },
-            .into_array => |array| {
-                return JSC.JSValue.jsNumberFromInt64(array.len);
-            },
-            .into_array_and_done => |array| {
-                return JSC.JSValue.jsNumberFromInt64(array.len);
-            },
-            .pending => |pending| {
-                var promise = JSC.JSPromise.create(globalThis);
-                toPromised(globalThis, promise, pending);
-                return promise.asValue(globalThis);
-            },
-
-            .err => |err| {
-                return JSC.JSPromise.rejectedPromise(globalThis, JSValue.c(err.toJS(globalThis.ref()))).asValue(globalThis);
-            },
-
-            // false == controller.close()
-            // undefined == noop, but we probably won't send it
-            .done => {
-                return JSC.JSValue.jsBoolean(false);
-            },
-        }
-    }
 };
-
-pub fn WritableStreamSink(
-    comptime Context: type,
-    comptime onStart: ?fn (this: Context) void,
-    comptime onWrite: fn (this: Context, bytes: []const u8) JSC.Maybe(Blob.SizeType),
-    comptime onAbort: ?fn (this: Context) void,
-    comptime onClose: ?fn (this: Context) void,
-    comptime deinit: ?fn (this: Context) void,
-) type {
-    return struct {
-        context: Context,
-        closed: bool = false,
-        deinited: bool = false,
-        pending_err: ?JSC.Node.Syscall.Error = null,
-        aborted: bool = false,
-
-        abort_signaler: ?*anyopaque = null,
-        onAbortCallback: ?fn (?*anyopaque) void = null,
-
-        close_signaler: ?*anyopaque = null,
-        onCloseCallback: ?fn (?*anyopaque) void = null,
-
-        pub const This = @This();
-
-        pub fn write(this: *This, bytes: []const u8) JSC.Maybe(Blob.SizeType) {
-            if (this.pending_err) |err| {
-                this.pending_err = null;
-                return .{ .err = err };
-            }
-
-            if (this.closed or this.aborted or this.deinited) {
-                return .{ .result = 0 };
-            }
-            return onWrite(&this.context, bytes);
-        }
-
-        pub fn start(this: *This) StreamStart {
-            return onStart(&this.context);
-        }
-
-        pub fn abort(this: *This) void {
-            if (this.closed or this.deinited or this.aborted) {
-                return;
-            }
-
-            this.aborted = true;
-            onAbort(&this.context);
-        }
-
-        pub fn didAbort(this: *This) void {
-            if (this.closed or this.deinited or this.aborted) {
-                return;
-            }
-            this.aborted = true;
-
-            if (this.onAbortCallback) |cb| {
-                this.onAbortCallback = null;
-                cb(this.abort_signaler);
-            }
-        }
-
-        pub fn didClose(this: *This) void {
-            if (this.closed or this.deinited or this.aborted) {
-                return;
-            }
-            this.closed = true;
-
-            if (this.onCloseCallback) |cb| {
-                this.onCloseCallback = null;
-                cb(this.close_signaler);
-            }
-        }
-
-        pub fn close(this: *This) void {
-            if (this.closed or this.deinited or this.aborted) {
-                return;
-            }
-
-            this.closed = true;
-            onClose(this.context);
-        }
-
-        pub fn deinit(this: *This) void {
-            if (this.deinited) {
-                return;
-            }
-            this.deinited = true;
-            deinit(this.context);
-        }
-
-        pub fn getError(this: *This) ?JSC.Node.Syscall.Error {
-            if (this.pending_err) |err| {
-                this.pending_err = null;
-                return err;
-            }
-
-            return null;
-        }
-    };
-}
-
-pub fn HTTPServerWritable(comptime ssl: bool) type {
-    return struct {
-        pub const UWSResponse = uws.NewApp(ssl).Response;
-        res: *UWSResponse,
-        pending_chunk: []const u8 = "",
-        is_listening_for_abort: bool = false,
-        wrote: Blob.SizeType = 0,
-        callback: anyframe->JSC.Maybe(Blob.SizeType) = undefined,
-        writable: Writable,
-
-        pub fn onWritable(this: *@This(), available: c_ulong, _: *UWSResponse) callconv(.C) bool {
-            const to_write = @minimum(@truncate(Blob.SizeType, available), @truncate(Blob.SizeType, this.pending_chunk.len));
-            if (!this.res.write(this.pending_chunk[0..to_write])) {
-                return true;
-            }
-
-            this.pending_chunk = this.pending_chunk[to_write..];
-            this.wrote += to_write;
-            if (this.pending_chunk.len > 0) {
-                this.res.onWritable(*@This(), onWritable, this);
-                return true;
-            }
-
-            var callback = this.callback;
-            this.callback = undefined;
-            // TODO: clarify what the boolean means
-            resume callback;
-            bun.default_allocator.destroy(callback.*);
-            return false;
-        }
-
-        pub fn onStart(this: *@This()) void {
-            if (this.res.hasResponded()) {
-                this.writable.didClose();
-            }
-        }
-        pub fn onWrite(this: *@This(), bytes: []const u8) JSC.Maybe(Blob.SizeType) {
-            if (this.writable.aborted) {
-                return .{ .result = 0 };
-            }
-
-            if (this.pending_chunk.len > 0) {
-                return JSC.Maybe(Blob.SizeType).retry;
-            }
-
-            if (this.res.write(bytes)) {
-                return .{ .result = @truncate(Blob.SizeType, bytes.len) };
-            }
-
-            this.pending_chunk = bytes;
-            this.writable.pending_err = null;
-            suspend {
-                if (!this.is_listening_for_abort) {
-                    this.is_listening_for_abort = true;
-                    this.res.onAborted(*@This(), onAborted);
-                }
-
-                this.res.onWritable(*@This(), onWritable, this);
-                var frame = bun.default_allocator.create(@TypeOf(@Frame(onWrite))) catch unreachable;
-                this.callback = frame;
-                frame.* = @frame().*;
-            }
-            const wrote = this.wrote;
-            this.wrote = 0;
-            if (this.writable.pending_err) |err| {
-                this.writable.pending_err = null;
-                return .{ .err = err };
-            }
-            return .{ .result = wrote };
-        }
-
-        // client-initiated
-        pub fn onAborted(this: *@This(), _: *UWSResponse) void {
-            this.writable.didAbort();
-        }
-        // writer-initiated
-        pub fn onAbort(this: *@This()) void {
-            this.res.end("", true);
-        }
-        pub fn onClose(this: *@This()) void {
-            this.res.end("", false);
-        }
-        pub fn deinit(_: *@This()) void {}
-
-        pub const Writable = WritableStreamSink(@This(), onStart, onWrite, onAbort, onClose, deinit);
-    };
-}
-pub const HTTPSWriter = HTTPServerWritable(true);
-pub const HTTPWriter = HTTPServerWritable(false);
-
-pub fn ReadableStreamSource(
-    comptime Context: type,
-    comptime name_: []const u8,
-    comptime onStart: anytype,
-    comptime onPull: anytype,
-    comptime onCancel: fn (this: *Context) void,
-    comptime deinit: fn (this: *Context) void,
-) type {
-    return struct {
-        context: Context,
-        cancelled: bool = false,
-        deinited: bool = false,
-        pending_err: ?JSC.Node.Syscall.Error = null,
-        close_handler: ?fn (*anyopaque) void = null,
-        close_ctx: ?*anyopaque = null,
-        close_jsvalue: JSValue = JSValue.zero,
-        globalThis: *JSGlobalObject = undefined,
-
-        const This = @This();
-        const ReadableStreamSourceType = @This();
-
-        pub fn pull(this: *This, buf: []u8) StreamResult {
-            return onPull(&this.context, buf, JSValue.zero);
-        }
-
-        pub fn start(
-            this: *This,
-        ) StreamStart {
-            return onStart(&this.context);
-        }
-
-        pub fn pullFromJS(this: *This, buf: []u8, view: JSValue) StreamResult {
-            return onPull(&this.context, buf, view);
-        }
-
-        pub fn startFromJS(this: *This) StreamStart {
-            return onStart(&this.context);
-        }
-
-        pub fn cancel(this: *This) void {
-            if (this.cancelled or this.deinited) {
-                return;
-            }
-
-            this.cancelled = true;
-            onCancel(&this.context);
-        }
-
-        pub fn onClose(this: *This) void {
-            if (this.cancelled or this.deinited) {
-                return;
-            }
-
-            if (this.close_handler) |close| {
-                this.close_handler = null;
-                close(this.close_ctx);
-            }
-        }
-
-        pub fn deinit(this: *This) void {
-            if (this.deinited) {
-                return;
-            }
-            this.deinited = true;
-            deinit(&this.context);
-        }
-
-        pub fn getError(this: *This) ?JSC.Node.Syscall.Error {
-            if (this.pending_err) |err| {
-                this.pending_err = null;
-                return err;
-            }
-
-            return null;
-        }
-
-        pub fn toJS(this: *ReadableStreamSourceType, globalThis: *JSGlobalObject) JSC.JSValue {
-            return ReadableStream.fromNative(globalThis, Context.tag, this);
-        }
-
-        pub const JSReadableStreamSource = struct {
-            pub const shim = JSC.Shimmer(std.mem.span(name_), "JSReadableStreamSource", @This());
-            pub const name = std.fmt.comptimePrint("{s}_JSReadableStreamSource", .{std.mem.span(name_)});
-
-            pub fn pull(globalThis: *JSGlobalObject, callFrame: *JSC.CallFrame) callconv(.C) JSC.JSValue {
-                var this = callFrame.argument(0).asPtr(ReadableStreamSourceType);
-                const view = callFrame.argument(1);
-                view.ensureStillAlive();
-                var buffer = view.asArrayBuffer(globalThis) orelse return JSC.JSValue.jsUndefined();
-                return processResult(
-                    globalThis,
-                    callFrame,
-                    this.pullFromJS(buffer.slice(), view),
-                );
-            }
-            pub fn start(globalThis: *JSGlobalObject, callFrame: *JSC.CallFrame) callconv(.C) JSC.JSValue {
-                var this = callFrame.argument(0).asPtr(ReadableStreamSourceType);
-                switch (this.startFromJS()) {
-                    .empty => return JSValue.jsNumber(0),
-                    .chunk_size => |size| return JSValue.jsNumber(size),
-                    .err => |err| {
-                        globalThis.vm().throwError(globalThis, err.toJSC(globalThis));
-                        return JSC.JSValue.jsUndefined();
-                    },
-                }
-            }
-
-            pub fn processResult(globalThis: *JSGlobalObject, callFrame: *JSC.CallFrame, result: StreamResult) JSC.JSValue {
-                switch (result) {
-                    .err => |err| {
-                        globalThis.vm().throwError(globalThis, err.toJSC(globalThis));
-                        return JSValue.jsUndefined();
-                    },
-                    .temporary_and_done, .owned_and_done, .into_array_and_done => {
-                        JSC.C.JSObjectSetPropertyAtIndex(globalThis.ref(), callFrame.argument(2).asObjectRef(), 0, JSValue.jsBoolean(true).asObjectRef(), null);
-                        return result.toJS(globalThis);
-                    },
-                    else => return result.toJS(globalThis),
-                }
-            }
-            pub fn cancel(_: *JSGlobalObject, callFrame: *JSC.CallFrame) callconv(.C) JSC.JSValue {
-                var this = callFrame.argument(0).asPtr(ReadableStreamSourceType);
-                this.cancel();
-                return JSC.JSValue.jsUndefined();
-            }
-            pub fn setClose(globalThis: *JSGlobalObject, callFrame: *JSC.CallFrame) callconv(.C) JSC.JSValue {
-                var this = callFrame.argument(0).asPtr(ReadableStreamSourceType);
-                this.close_ctx = this;
-                this.close_handler = JSReadableStreamSource.onClose;
-                this.globalThis = globalThis;
-                this.close_jsvalue = callFrame.argument(1);
-                return JSC.JSValue.jsUndefined();
-            }
-
-            fn onClose(ptr: *anyopaque) void {
-                var this = bun.cast(*ReadableStreamSourceType, ptr);
-                _ = this.close_jsvalue.call(this.globalThis, &.{});
-                //    this.closer
-            }
-
-            pub fn deinit(_: *JSGlobalObject, callFrame: *JSC.CallFrame) callconv(.C) JSC.JSValue {
-                var this = callFrame.argument(0).asPtr(ReadableStreamSourceType);
-                this.deinit();
-                return JSValue.jsUndefined();
-            }
-
-            pub fn load(globalThis: *JSGlobalObject) callconv(.C) JSC.JSValue {
-                if (comptime JSC.is_bindgen) unreachable;
-                if (comptime Environment.allow_assert) {
-                    // this should be cached per globals object
-                    const OnlyOnce = struct {
-                        pub threadlocal var last_globals: ?*JSGlobalObject = null;
-                    };
-                    if (OnlyOnce.last_globals) |last_globals| {
-                        std.debug.assert(last_globals != globalThis);
-                    }
-                    OnlyOnce.last_globals = globalThis;
-                }
-                return JSC.JSArray.from(globalThis, &.{
-                    JSC.NewFunction(globalThis, null, 1, JSReadableStreamSource.pull),
-                    JSC.NewFunction(globalThis, null, 1, JSReadableStreamSource.start),
-                    JSC.NewFunction(globalThis, null, 1, JSReadableStreamSource.cancel),
-                    JSC.NewFunction(globalThis, null, 1, JSReadableStreamSource.setClose),
-                    JSC.NewFunction(globalThis, null, 1, JSReadableStreamSource.deinit),
-                });
-            }
-
-            pub const Export = shim.exportFunctions(.{
-                .@"load" = load,
-            });
-
-            comptime {
-                if (!JSC.is_bindgen) {
-                    @export(load, .{ .name = Export[0].symbol_name });
-                    _ = JSReadableStreamSource.pull;
-                    _ = JSReadableStreamSource.start;
-                    _ = JSReadableStreamSource.cancel;
-                    _ = JSReadableStreamSource.setClose;
-                    _ = JSReadableStreamSource.load;
-                }
-            }
-        };
-    };
-}
-
-pub const ByteBlobLoader = struct {
-    offset: Blob.SizeType = 0,
-    store: *Blob.Store,
-    chunk_size: Blob.SizeType = 1024 * 1024 * 2,
-    remain: Blob.SizeType = 1024 * 1024 * 2,
-    done: bool = false,
-
-    pub const tag = ReadableStream.Tag.Blob;
-
-    pub fn setup(
-        this: *ByteBlobLoader,
-        blob: *const Blob,
-        user_chunk_size: Blob.SizeType,
-    ) void {
-        blob.store.?.ref();
-        var blobe = blob.*;
-        blobe.resolveSize();
-        this.* = ByteBlobLoader{
-            .offset = blobe.offset,
-            .store = blobe.store.?,
-            .chunk_size = if (user_chunk_size > 0) @minimum(user_chunk_size, blobe.size) else @minimum(1024 * 1024 * 2, blobe.size),
-            .remain = blobe.size,
-            .done = false,
-        };
-    }
-
-    pub fn onStart(this: *ByteBlobLoader) StreamStart {
-        return .{ .chunk_size = this.chunk_size };
-    }
-
-    pub fn onPull(this: *ByteBlobLoader, buffer: []u8, array: JSC.JSValue) StreamResult {
-        array.ensureStillAlive();
-        defer array.ensureStillAlive();
-        if (this.done) {
-            return .{ .done = {} };
-        }
-
-        var temporary = this.store.sharedView();
-        temporary = temporary[this.offset..];
-
-        temporary = temporary[0..@minimum(buffer.len, @minimum(temporary.len, this.remain))];
-        if (temporary.len == 0) {
-            this.store.deref();
-            this.done = true;
-            return .{ .done = {} };
-        }
-
-        const copied = @intCast(Blob.SizeType, temporary.len);
-
-        this.remain -|= copied;
-        this.offset +|= copied;
-        @memcpy(buffer.ptr, temporary.ptr, temporary.len);
-        if (this.remain == 0) {
-            return .{ .into_array_and_done = .{ .value = array, .len = copied } };
-        }
-
-        return .{ .into_array = .{ .value = array, .len = copied } };
-    }
-
-    pub fn onCancel(_: *ByteBlobLoader) void {}
-
-    pub fn deinit(this: *ByteBlobLoader) void {
-        if (!this.done) {
-            this.done = true;
-            this.store.deref();
-        }
-
-        bun.default_allocator.destroy(this);
-    }
-
-    pub const Source = ReadableStreamSource(@This(), "ByteBlob", onStart, onPull, onCancel, deinit);
-};
-
-pub const FileBlobLoader = struct {
-    buf: []u8 = &[_]u8{},
-    protected_view: JSC.JSValue = JSC.JSValue.zero,
-    fd: JSC.Node.FileDescriptor = 0,
-    auto_close: bool = false,
-    loop: *JSC.EventLoop = undefined,
-    mode: JSC.Node.Mode = 0,
-    store: *Blob.Store,
-    total_read: Blob.SizeType = 0,
-    finalized: bool = false,
-    callback: anyframe = undefined,
-    pending: StreamResult.Pending = StreamResult.Pending{
-        .frame = undefined,
-        .used = false,
-        .result = .{ .done = {} },
-    },
-    cancelled: bool = false,
-    user_chunk_size: Blob.SizeType = 0,
-    scheduled_count: u32 = 0,
-    concurrent: Concurrent = Concurrent{},
-
-    const FileReader = @This();
-
-    const run_on_different_thread_size = bun.huge_allocator_threshold;
-
-    pub const tag = ReadableStream.Tag.File;
-
-    pub fn setup(this: *FileBlobLoader, store: *Blob.Store, chunk_size: Blob.SizeType) void {
-        store.ref();
-        this.* = .{
-            .loop = JSC.VirtualMachine.vm.eventLoop(),
-            .auto_close = store.data.file.pathlike == .path,
-            .store = store,
-            .user_chunk_size = chunk_size,
-        };
-    }
-
-    pub fn watch(this: *FileReader) void {
-        _ = JSC.VirtualMachine.vm.poller.watch(this.fd, .read, this, callback);
-        this.scheduled_count += 1;
-    }
-
-    const Concurrent = struct {
-        read: Blob.SizeType = 0,
-        task: NetworkThread.Task = .{ .callback = Concurrent.taskCallback },
-        completion: AsyncIO.Completion = undefined,
-        read_frame: anyframe = undefined,
-        chunk_size: Blob.SizeType = 0,
-        main_thread_task: JSC.AnyTask = .{ .callback = onJSThread, .ctx = null },
-
-        pub fn taskCallback(task: *NetworkThread.Task) void {
-            var this = @fieldParentPtr(FileBlobLoader, "concurrent", @fieldParentPtr(Concurrent, "task", task));
-            var frame = HTTPClient.getAllocator().create(@Frame(runAsync)) catch unreachable;
-            _ = @asyncCall(std.mem.asBytes(frame), undefined, runAsync, .{this});
-        }
-
-        pub fn onRead(this: *FileBlobLoader, completion: *HTTPClient.NetworkThread.Completion, result: AsyncIO.ReadError!usize) void {
-            this.concurrent.read = @truncate(Blob.SizeType, result catch |err| {
-                if (@hasField(HTTPClient.NetworkThread.Completion, "result")) {
-                    this.pending.result = .{
-                        .err = JSC.Node.Syscall.Error{
-                            .errno = @intCast(JSC.Node.Syscall.Error.Int, -completion.result),
-                            .syscall = .read,
-                        },
-                    };
-                } else {
-                    this.pending.result = .{
-                        .err = JSC.Node.Syscall.Error{
-                            // this is too hacky
-                            .errno = @truncate(JSC.Node.Syscall.Error.Int, @intCast(u16, @maximum(1, @errorToInt(err)))),
-                            .syscall = .read,
-                        },
-                    };
-                }
-                this.concurrent.read = 0;
-                resume this.concurrent.read_frame;
-                return;
-            });
-
-            resume this.concurrent.read_frame;
-        }
-
-        pub fn scheduleRead(this: *FileBlobLoader) void {
-            if (comptime Environment.isMac) {
-                var remaining = this.buf[this.concurrent.read..];
-
-                while (remaining.len > 0) {
-                    const to_read = @minimum(@as(usize, this.concurrent.chunk_size), remaining.len);
-                    switch (JSC.Node.Syscall.read(this.fd, remaining[0..to_read])) {
-                        .err => |err| {
-                            const retry = comptime if (Environment.isLinux)
-                                std.os.E.WOULDBLOCK
-                            else
-                                std.os.E.AGAIN;
-
-                            switch (err.getErrno()) {
-                                retry => break,
-                                else => {},
-                            }
-
-                            this.pending.result = .{ .err = err };
-                            scheduleMainThreadTask(this);
-                            return;
-                        },
-                        .result => |result| {
-                            this.concurrent.read += @intCast(Blob.SizeType, result);
-                            remaining = remaining[result..];
-
-                            if (result == 0) {
-                                remaining.len = 0;
-                                break;
-                            }
-                        },
-                    }
-                }
-
-                if (remaining.len == 0) {
-                    scheduleMainThreadTask(this);
-                    return;
-                }
-            }
-
-            AsyncIO.global.read(
-                *FileBlobLoader,
-                this,
-                onRead,
-                &this.concurrent.completion,
-                this.fd,
-                this.buf[this.concurrent.read..],
-                null,
-            );
-
-            suspend {
-                var _frame = @frame();
-                var this_frame = HTTPClient.getAllocator().create(std.meta.Child(@TypeOf(_frame))) catch unreachable;
-                this_frame.* = _frame.*;
-                this.concurrent.read_frame = this_frame;
-            }
-
-            scheduleMainThreadTask(this);
-        }
-
-        pub fn onJSThread(task_ctx: *anyopaque) void {
-            var this: *FileBlobLoader = bun.cast(*FileBlobLoader, task_ctx);
-            const protected_view = this.protected_view;
-            defer protected_view.unprotect();
-            this.protected_view = JSC.JSValue.zero;
-
-            if (this.finalized and this.scheduled_count == 0) {
-                if (!this.pending.used) {
-                    resume this.pending.frame;
-                }
-                this.scheduled_count -= 1;
-
-                this.deinit();
-
-                return;
-            }
-
-            if (!this.pending.used and this.pending.result == .err and this.concurrent.read == 0) {
-                resume this.pending.frame;
-                this.scheduled_count -= 1;
-                this.finalize();
-                return;
-            }
-
-            if (this.concurrent.read == 0) {
-                this.pending.result = .{ .done = {} };
-                resume this.pending.frame;
-                this.scheduled_count -= 1;
-                this.finalize();
-                return;
-            }
-
-            this.pending.result = this.handleReadChunk(@as(usize, this.concurrent.read));
-            resume this.pending.frame;
-            this.scheduled_count -= 1;
-            if (this.pending.result.isDone()) {
-                this.finalize();
-            }
-        }
-
-        pub fn scheduleMainThreadTask(this: *FileBlobLoader) void {
-            this.concurrent.main_thread_task.ctx = this;
-            this.loop.enqueueTaskConcurrent(JSC.Task.init(&this.concurrent.main_thread_task));
-        }
-
-        fn runAsync(this: *FileBlobLoader) void {
-            this.concurrent.read = 0;
-
-            Concurrent.scheduleRead(this);
-
-            suspend {
-                HTTPClient.getAllocator().destroy(@frame());
-            }
-        }
-    };
-
-    pub fn scheduleAsync(this: *FileReader, chunk_size: Blob.SizeType) void {
-        this.scheduled_count += 1;
-        this.loop.virtual_machine.active_tasks +|= 1;
-
-        NetworkThread.init() catch {};
-        this.concurrent.chunk_size = chunk_size;
-        NetworkThread.global.pool.schedule(.{ .head = &this.concurrent.task, .tail = &this.concurrent.task, .len = 1 });
-    }
-
-    const default_fifo_chunk_size = 1024;
-    const default_file_chunk_size = 1024 * 1024 * 2;
-    pub fn onStart(this: *FileBlobLoader) StreamStart {
-        var file = &this.store.data.file;
-        var file_buf: [std.fs.MAX_PATH_BYTES]u8 = undefined;
-        var auto_close = this.auto_close;
-        defer this.auto_close = auto_close;
-        var fd = if (!auto_close)
-            file.pathlike.fd
-        else switch (JSC.Node.Syscall.open(file.pathlike.path.sliceZ(&file_buf), std.os.O.RDONLY | std.os.O.NONBLOCK | std.os.O.CLOEXEC, 0)) {
-            .result => |_fd| _fd,
-            .err => |err| {
-                this.deinit();
-                return .{ .err = err.withPath(file.pathlike.path.slice()) };
-            },
-        };
-
-        if (!auto_close) {
-            // ensure we have non-blocking IO set
-            const flags = std.os.fcntl(fd, std.os.F.GETFL, 0) catch return .{ .err = JSC.Node.Syscall.Error.fromCode(std.os.E.BADF, .fcntl) };
-
-            // if we do not, clone the descriptor and set non-blocking
-            // it is important for us to clone it so we don't cause Weird Things to happen
-            if ((flags & std.os.O.NONBLOCK) == 0) {
-                auto_close = true;
-                fd = @intCast(@TypeOf(fd), std.os.fcntl(fd, std.os.F.DUPFD, 0) catch return .{ .err = JSC.Node.Syscall.Error.fromCode(std.os.E.BADF, .fcntl) });
-                _ = std.os.fcntl(fd, std.os.F.SETFL, flags | std.os.O.NONBLOCK) catch return .{ .err = JSC.Node.Syscall.Error.fromCode(std.os.E.BADF, .fcntl) };
-            }
-        }
-
-        const stat: std.os.Stat = switch (JSC.Node.Syscall.fstat(fd)) {
-            .result => |result| result,
-            .err => |err| {
-                if (auto_close) {
-                    _ = JSC.Node.Syscall.close(fd);
-                }
-                this.deinit();
-                return .{ .err = err.withPath(file.pathlike.path.slice()) };
-            },
-        };
-
-        if (std.os.S.ISDIR(stat.mode)) {
-            const err = JSC.Node.Syscall.Error.fromCode(.ISDIR, .fstat);
-            if (auto_close) {
-                _ = JSC.Node.Syscall.close(fd);
-            }
-            this.deinit();
-            return .{ .err = err };
-        }
-
-        if (std.os.S.ISSOCK(stat.mode)) {
-            const err = JSC.Node.Syscall.Error.fromCode(.INVAL, .fstat);
-
-            if (auto_close) {
-                _ = JSC.Node.Syscall.close(fd);
-            }
-            this.deinit();
-            return .{ .err = err };
-        }
-
-        file.seekable = std.os.S.ISREG(stat.mode);
-        file.mode = @intCast(JSC.Node.Mode, stat.mode);
-        this.mode = file.mode;
-
-        if (file.seekable orelse false)
-            file.max_size = @intCast(Blob.SizeType, stat.size);
-
-        if ((file.seekable orelse false) and file.max_size == 0) {
-            if (auto_close) {
-                _ = JSC.Node.Syscall.close(fd);
-            }
-            this.deinit();
-            return .{ .empty = {} };
-        }
-
-        this.fd = fd;
-        this.auto_close = auto_close;
-
-        const chunk_size = this.calculateChunkSize(std.math.maxInt(usize));
-        return .{ .chunk_size = @truncate(Blob.SizeType, chunk_size) };
-    }
-
-    fn calculateChunkSize(this: *FileBlobLoader, available_to_read: usize) usize {
-        const file = &this.store.data.file;
-
-        const chunk_size: usize = if (this.user_chunk_size > 0)
-            @as(usize, this.user_chunk_size)
-        else if (file.seekable orelse false)
-            @as(usize, default_file_chunk_size)
-        else
-            @as(usize, default_fifo_chunk_size);
-
-        return if (file.max_size > 0)
-            if (available_to_read != std.math.maxInt(usize)) @minimum(chunk_size, available_to_read) else @minimum(@maximum(this.total_read, file.max_size) - this.total_read, chunk_size)
-        else
-            @minimum(available_to_read, chunk_size);
-    }
-
-    pub fn onPull(this: *FileBlobLoader, buffer: []u8, view: JSC.JSValue) StreamResult {
-        const chunk_size = this.calculateChunkSize(std.math.maxInt(usize));
-
-        switch (chunk_size) {
-            0 => {
-                std.debug.assert(this.store.data.file.seekable orelse false);
-                this.finalize();
-                return .{ .done = {} };
-            },
-            run_on_different_thread_size...std.math.maxInt(@TypeOf(chunk_size)) => {
-                this.protected_view = view;
-                this.protected_view.protect();
-                // should never be reached
-                this.pending.result = .{
-                    .err = JSC.Node.Syscall.Error.todo,
-                };
-                this.buf = buffer;
-
-                this.scheduleAsync(@truncate(Blob.SizeType, chunk_size));
-
-                return .{ .pending = &this.pending };
-            },
-            else => {},
-        }
-
-        return this.read(buffer, view);
-    }
-
-    fn maybeAutoClose(this: *FileBlobLoader) void {
-        if (this.auto_close) {
-            _ = JSC.Node.Syscall.close(this.fd);
-            this.auto_close = false;
-        }
-    }
-
-    fn handleReadChunk(this: *FileBlobLoader, result: usize) StreamResult {
-        this.total_read += @intCast(Blob.SizeType, result);
-        const remaining: Blob.SizeType = if (this.store.data.file.seekable orelse false)
-            this.store.data.file.max_size -| this.total_read
-        else
-            @as(Blob.SizeType, std.math.maxInt(Blob.SizeType));
-
-        // this handles:
-        // - empty file
-        // - stream closed for some reason
-        if ((result == 0 and remaining == 0)) {
-            this.finalize();
-            return .{ .done = {} };
-        }
-
-        const has_more = remaining > 0;
-
-        if (!has_more) {
-            return .{ .into_array_and_done = .{ .len = @truncate(Blob.SizeType, result) } };
-        }
-
-        return .{ .into_array = .{ .len = @truncate(Blob.SizeType, result) } };
-    }
-
-    pub fn read(
-        this: *FileBlobLoader,
-        read_buf: []u8,
-        view: JSC.JSValue,
-    ) StreamResult {
-        const rc =
-            JSC.Node.Syscall.read(this.fd, read_buf);
-
-        switch (rc) {
-            .err => |err| {
-                const retry = comptime if (Environment.isLinux)
-                    std.os.E.WOULDBLOCK
-                else
-                    std.os.E.AGAIN;
-
-                switch (err.getErrno()) {
-                    retry => {
-                        this.protected_view = view;
-                        this.protected_view.protect();
-                        this.buf = read_buf;
-                        this.watch();
-                        return .{
-                            .pending = &this.pending,
-                        };
-                    },
-                    else => {},
-                }
-                const sys = if (this.store.data.file.pathlike == .path and this.store.data.file.pathlike.path.slice().len > 0)
-                    err.withPath(this.store.data.file.pathlike.path.slice())
-                else
-                    err;
-
-                this.finalize();
-                return .{ .err = sys };
-            },
-            .result => |result| {
-                return this.handleReadChunk(result);
-            },
-        }
-    }
-
-    pub fn callback(task: ?*anyopaque, sizeOrOffset: i64, _: u16) void {
-        var this: *FileReader = bun.cast(*FileReader, task.?);
-        this.scheduled_count -= 1;
-        const protected_view = this.protected_view;
-        defer protected_view.unprotect();
-        this.protected_view = JSValue.zero;
-
-        var available_to_read: usize = std.math.maxInt(usize);
-        if (comptime Environment.isMac) {
-            if (std.os.S.ISREG(this.mode)) {
-                // Returns when the file pointer is not at the end of
-                // file.  data contains the offset from current position
-                // to end of file, and may be negative.
-                available_to_read = @intCast(usize, @maximum(sizeOrOffset, 0));
-            } else if (std.os.S.ISCHR(this.mode) or std.os.S.ISFIFO(this.mode)) {
-                available_to_read = @intCast(usize, @maximum(sizeOrOffset, 0));
-            }
-        }
-        if (this.finalized and this.scheduled_count == 0) {
-            if (!this.pending.used) {
-                // should never be reached
-                this.pending.result = .{
-                    .err = JSC.Node.Syscall.Error.todo,
-                };
-                resume this.pending.frame;
-            }
-            this.deinit();
-            return;
-        }
-        if (this.cancelled)
-            return;
-
-        if (this.buf.len == 0) {
-            return;
-        } else {
-            this.buf.len = @minimum(this.buf.len, available_to_read);
-        }
-
-        this.pending.result = this.read(this.buf, this.protected_view);
-        resume this.pending.frame;
-    }
-
-    pub fn finalize(this: *FileBlobLoader) void {
-        if (this.finalized)
-            return;
-        this.finalized = true;
-
-        this.maybeAutoClose();
-
-        this.store.deref();
-    }
-
-    pub fn onCancel(this: *FileBlobLoader) void {
-        this.cancelled = true;
-
-        this.deinit();
-    }
-
-    pub fn deinit(this: *FileBlobLoader) void {
-        this.finalize();
-        if (this.scheduled_count == 0 and !this.pending.used) {
-            this.destroy();
-        }
-    }
-
-    pub fn destroy(this: *FileBlobLoader) void {
-        bun.default_allocator.destroy(this);
-    }
-
-    pub const Source = ReadableStreamSource(@This(), "FileBlobLoader", onStart, onPull, onCancel, deinit);
-};
-
-// pub const BlobFileLoader = struct {
-//     reader: Reader,
-//     source: ?*anyopaque = null,
-//     store: *Store,
-//     pub const Reader = NewFileReader(onRead, onError, onWouldBlock, isCancelled);
-
-//     pub fn onRead(this: *BlobFileReader, buf: []u8, len: Blob.SizeType) bool {
-//         if (len == 0) {
-//             return BlobStore__onRead(this.source, null, 0);
-//         }
-
-//         return BlobStore__onReadExternal(this.source, buf.ptr, len, buf.ptr, JSC.MarkedArrayBuffer_deallocator);
-//     }
-
-//     pub fn onError(ctx: *BlobFileReader, err: JSC.SystemError) void {
-//         _ = BlobStore__onError(ctx.source, &err, ctx.reader.global);
-//     }
-
-//     pub fn isCancelled(ctx: *BlobFileReader) bool {
-//         return BlobStore__isCancelled(ctx.source);
-//     }
-// };