There are dylib issues and I don't want to invest more time in this right now

integration/bunjs-only-snippets/clipboard.test.js

@@ -0,0 +1,7 @@
+import { it } from "bun:test";
+
+it("read", async () => {
+  // This doesn't run on Linux but it shouldn't throw at least
+  const text = await Bun.Clipboard.readText();
+  expect(text).toBe("hello");
+});

src/deps/objc.zig

@@ -0,0 +1,499 @@
+// Objective-C runtime headers without the extern
+// intended for dlopen
+
+const std = @import("std");
+
+pub const ObjC = struct {
+    // copypasta because the autocomplete for it is broken
+    pub const DlDynlib = struct {
+        const os = std.os;
+        const system = std.os.system;
+
+        pub const Error = error{FileNotFound};
+
+        handle: *anyopaque,
+
+        pub fn open(path: []const u8) !DlDynlib {
+            const path_c = try os.toPosixPath(path);
+            return openZ(&path_c);
+        }
+
+        pub fn openZ(path_c: [*:0]const u8) !DlDynlib {
+            return DlDynlib{
+                .handle = system.dlopen(path_c, system.RTLD.LAZY) orelse {
+                    return error.FileNotFound;
+                },
+            };
+        }
+
+        pub fn close(self: *DlDynlib) void {
+            _ = system.dlclose(self.handle);
+            self.* = undefined;
+        }
+
+        pub fn lookup(self: *DlDynlib, comptime T: type, name: [:0]const u8) ?T {
+            // dlsym (and other dl-functions) secretly take shadow parameter - return address on stack
+            // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66826
+            if (@call(.{ .modifier = .never_tail }, system.dlsym, .{ self.handle, name.ptr })) |symbol| {
+                @setRuntimeSafety(false);
+                return @ptrCast(T, @alignCast(@alignOf(T), symbol));
+            } else {
+                return null;
+            }
+        }
+    };
+
+    pub const C = struct {
+        objc_lookUpClass: Types.objc_lookUpClass,
+        sel_getUid: Types.sel_getUid,
+        objc_msgSend: fn (...) callconv(.C) Types.id,
+        objc_dylib: DlDynlib,
+        appkit_dylib: DlDynlib,
+        CFStringCreateWithBytesNoCopy: Types.CFStringCreateWithBytesNoCopy,
+        NSPasteboardTypeString: Types.CFStringRef,
+        NSPasteboardTypePNG: Types.CFStringRef,
+        // NSPasteboardTypeURL: *Types.id,
+        CFArrayCreate: Types.CFArrayCreate,
+        kCFAllocatorNull: Types.kCFAllocatorNull,
+        CFArrayContainsValue: Types.CFArrayContainsValue,
+        CFRetain: Types.CFRetain,
+        CFRelease: Types.CFRelease,
+        CFDataGetLength: Types.CFDataGetLength,
+        CFDataGetBytePtr: Types.CFDataGetBytePtr,
+        CFDataCreateWithBytesNoCopy: Types.CFDataCreateWithBytesNoCopy,
+        CFArrayGetCount: Types.CFArrayGetCount,
+        CFArrayGetValueAtIndex: Types.CFArrayGetValueAtIndex,
+
+        const id = Types.id;
+
+        pub fn class(c: *C, s: [*c]const u8) Types.id {
+            return @ptrCast(C.id, @alignCast(@alignOf(C.id), c.objc_lookUpClass(s)));
+        }
+
+        pub fn call(c: *C, obj: Types.id, sel_name: [*c]const u8) Types.id {
+            var f = @ptrCast(
+                fn (C.id, Types.SEL) callconv(.C) C.id,
+                c.objc_msgSend,
+            );
+            return f(obj, c.sel_getUid(sel_name));
+        }
+
+        pub fn call_(c: *C, obj: Types.id, sel_name: [*c]const u8, arg: anytype) C.id {
+            //  objc_msgSend has the prototype "void objc_msgSend(void)",
+            //  so we have to cast it based on the types of our arguments
+            //  (https://www.mikeash.com/pyblog/objc_msgsends-new-prototype.html)
+            var f = @ptrCast(
+                fn (Types.id, Types.SEL, @TypeOf(arg)) callconv(.C) Types.id,
+                c.objc_msgSend,
+            );
+            return f(obj, c.sel_getUid(sel_name), arg);
+        }
+
+        pub fn call2(c: *C, obj: Types.id, sel_name: [*c]const u8, arg: anytype, arg2: anytype) C.id {
+            //  objc_msgSend has the prototype "void objc_msgSend(void)",
+            //  so we have to cast it based on the types of our arguments
+            //  (https://www.mikeash.com/pyblog/objc_msgsends-new-prototype.html)
+            var f = @ptrCast(
+                fn (Types.id, Types.SEL, @TypeOf(arg), @TypeOf(arg2)) callconv(.C) C.id,
+                c.objc_msgSend,
+            );
+            return f(obj, c.sel_getUid(sel_name), arg, arg2);
+        }
+    };
+
+    pub const Clipboard = struct {
+        pub const Data = enum {
+            png,
+            string,
+            // url,
+        };
+        pub fn get(allocator: std.mem.Allocator, tag: Data) ![]u8 {
+            if (!objc_loaded) {
+                try load();
+            }
+
+            const pasteboard_class = objc.class("NSPasteboard");
+            const pb = objc.call(pasteboard_class, "generalPasteboard");
+            var kind = switch (tag) {
+                .png => objc.NSPasteboardTypePNG,
+                .string => objc.NSPasteboardTypeString,
+                // .url => objc.NSPasteboardTypeURL,
+            };
+            var array = [_]?*const anyopaque{kind};
+            var supported_types = objc.CFArrayCreate(null, &array, 1, null);
+            defer objc.CFRelease(supported_types);
+            const item = objc.call_(pb, "availableTypeFromArray:", supported_types.toNSArray());
+            const data = objc.call_(
+                item,
+                "dataForType:",
+                @ptrCast(Types.id, @alignCast(@alignOf(Types.id), kind)),
+            );
+            const size: usize = @ptrToInt(objc.call(data, "length"));
+            if (size == 0)
+                return &[_]u8{};
+
+            var bytes = try allocator.alloc(u8, size);
+            _ = objc.call2(data, "getBytes:length:", bytes.ptr, size);
+            return bytes;
+        }
+
+        pub fn set(tag: Data, blob: []const u8) !void {
+            if (!objc_loaded) {
+                try load();
+            }
+
+            const pasteboard_class = objc.class("NSPasteboard");
+            const pb = objc.call(pasteboard_class, "generalPasteboard");
+
+            const NSData = objc.class("NSData");
+            var data = objc.call2(NSData, "dataWithBytes:length", blob.ptr, blob.len);
+            var kind = switch (tag) {
+                .png => objc.NSPasteboardTypePNG,
+                .string => objc.NSPasteboardTypeString,
+                // .url => objc.NSPasteboardTypeURL,
+            };
+            _ = objc.call2(pb, "declareTypes:owner", kind, @as(Types.id, null));
+
+            _ = objc.call2(
+                pb,
+                "setData:forType",
+                data,
+                @ptrCast(Types.id, @alignCast(@alignOf(Types.id), kind)),
+            );
+        }
+    };
+
+    pub var objc: C = undefined;
+    pub var objc_loaded: bool = false;
+
+    pub fn load() !void {
+        var dylib = try DlDynlib.openZ("/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation");
+        var appkit = try DlDynlib.openZ("/System/Library/Frameworks/AppKit.framework/AppKit");
+        var CFStringCreateWithBytesNoCopy = dylib.lookup(Types.CFStringCreateWithBytesNoCopy, "CFStringCreateWithBytesNoCopy").?;
+        const kCFAllocatorNull = dylib.lookup(Types.kCFAllocatorNull, "kCFAllocatorNull").?;
+        var NSPasteboardTypeString = CFStringCreateWithBytesNoCopy(
+            null,
+            "public.utf8-plain-text",
+            "public.utf8-plain-text".len,
+            Types.CFStringEncoding.ASCII,
+            1,
+            null,
+        );
+        var NSPasteboardTypePNG = CFStringCreateWithBytesNoCopy(
+            null,
+            "public.png",
+            "public.png".len,
+            Types.CFStringEncoding.ASCII,
+            1,
+            null,
+        );
+
+        objc = C{
+            .kCFAllocatorNull = kCFAllocatorNull,
+
+            .objc_lookUpClass = dylib.lookup(Types.objc_lookUpClass, "objc_lookUpClass").?,
+            .sel_getUid = dylib.lookup(Types.sel_getUid, "sel_getUid").?,
+            .objc_msgSend = dylib.lookup(fn (...) callconv(.C) C.id, "objc_msgSend").?,
+            .appkit_dylib = appkit,
+            .objc_dylib = dylib,
+            .CFStringCreateWithBytesNoCopy = CFStringCreateWithBytesNoCopy,
+            .NSPasteboardTypeString = NSPasteboardTypeString,
+            .NSPasteboardTypePNG = NSPasteboardTypePNG,
+            .CFArrayCreate = dylib.lookup(@TypeOf(objc.CFArrayCreate), "CFArrayCreate").?,
+            .CFArrayContainsValue = dylib.lookup(@TypeOf(objc.CFArrayContainsValue), "CFArrayContainsValue").?,
+            .CFRetain = dylib.lookup(@TypeOf(objc.CFRetain), "CFRetain").?,
+            .CFRelease = dylib.lookup(@TypeOf(objc.CFRelease), "CFRelease").?,
+            .CFDataGetLength = dylib.lookup(@TypeOf(objc.CFDataGetLength), "CFDataGetLength").?,
+            .CFDataGetBytePtr = dylib.lookup(@TypeOf(objc.CFDataGetBytePtr), "CFDataGetBytePtr").?,
+            .CFDataCreateWithBytesNoCopy = dylib.lookup(@TypeOf(objc.CFDataCreateWithBytesNoCopy), "CFDataCreateWithBytesNoCopy").?,
+            .CFArrayGetCount = dylib.lookup(@TypeOf(objc.CFArrayGetCount), "CFArrayGetCount").?,
+            .CFArrayGetValueAtIndex = dylib.lookup(@TypeOf(objc.CFArrayGetValueAtIndex), "CFArrayGetValueAtIndex").?,
+        };
+        objc_loaded = true;
+    }
+
+    pub const Types = struct {
+        pub const CFRange = extern struct {
+            location: CFIndex,
+            length: CFIndex,
+        };
+        const UInt8 = u8;
+        pub const CFData = opaque {
+            pub fn init(objc_id: id) *CFData {
+                return @ptrCast(*CFData, objc_id.isa.?);
+            }
+        };
+        const UInt32 = u32;
+        pub const CFStringEncoding = enum(UInt32) {
+            MacRoman = 0,
+            WindowsLatin1 = 1280,
+            ISOLatin1 = 513,
+            NextStepLatin = 2817,
+            ASCII = 1536,
+            UTF8 = 134217984,
+            NonLossyASCII = 3071,
+            UTF16 = 256,
+            UTF16BE = 268435712,
+            UTF16LE = 335544576,
+            UTF32 = 201326848,
+            UTF32BE = 402653440,
+            UTF32LE = 469762304,
+            _,
+        };
+        pub const CFStringBuiltInEncodings = CFStringEncoding;
+        pub const CFStringCreateWithBytesNoCopy = fn (alloc: CFAllocatorRef, bytes: [*]const UInt8, numBytes: CFIndex, encoding: CFStringEncoding, isExternalRepresentation: Boolean, contentsDeallocator: CFAllocatorRef) callconv(.C) CFStringRef;
+
+        pub const CFDataRef = ?*const CFData;
+        pub const CFArrayCreate = fn (allocator: CFAllocatorRef, values: [*]?*const anyopaque, numValues: CFIndex, callBacks: ?*const CFArrayCallBacks) callconv(.C) CFArrayRef;
+        pub const CFArrayContainsValue = fn (theArray: CFArrayRef, range: CFRange, value: ?*const anyopaque) callconv(.C) Boolean;
+        pub const CFRetain = fn (cf: CFTypeRef) callconv(.C) CFTypeRef;
+        pub const CFRelease = fn (cf: CFTypeRef) callconv(.C) void;
+        pub const CFDataGetLength = fn (theData: CFDataRef) callconv(.C) CFIndex;
+        pub const CFDataGetBytePtr = fn (theData: CFDataRef) callconv(.C) [*c]const UInt8;
+        pub const CFDataCreateWithBytesNoCopy = fn (allocator: CFAllocatorRef, bytes: [*c]const UInt8, length: CFIndex, bytesDeallocator: CFAllocatorRef) callconv(.C) CFDataRef;
+        pub const Boolean = u8;
+        pub const CFTypeRef = ?*anyopaque;
+        pub const struct___CFAllocator = opaque {};
+        pub const CFAllocatorRef = ?*const struct___CFAllocator;
+        pub const CFString = opaque {};
+        pub const CFStringRef = *CFString;
+
+        pub const kCFAllocatorNull = CFAllocatorRef;
+        pub const CFArrayRetainCallBack = ?fn (CFAllocatorRef, ?*const anyopaque) callconv(.C) ?*const anyopaque;
+        pub const CFArrayReleaseCallBack = ?fn (CFAllocatorRef, ?*const anyopaque) callconv(.C) void;
+        pub const CFArrayCopyDescriptionCallBack = ?fn (?*const anyopaque) callconv(.C) CFStringRef;
+        pub const CFArrayEqualCallBack = ?fn (?*const anyopaque, ?*const anyopaque) callconv(.C) Boolean;
+        pub const CFArrayCallBacks = extern struct {
+            version: CFIndex,
+            retain: CFArrayRetainCallBack,
+            release: CFArrayReleaseCallBack,
+            copyDescription: CFArrayCopyDescriptionCallBack,
+            equal: CFArrayEqualCallBack,
+        };
+        pub extern const kCFTypeArrayCallBacks: CFArrayCallBacks;
+        pub const CFArrayApplierFunction = ?fn (?*const anyopaque, ?*anyopaque) callconv(.C) void;
+        pub const CFArray = opaque {
+            pub fn toNSArray(this: *CFArray) id {
+                return @ptrCast(id, @alignCast(@alignOf(id), this));
+            }
+        };
+        pub const CFArrayRef = *CFArray;
+        pub const CFMutableArrayRef = ?*CFArray;
+        pub const CFArrayGetCount = fn (theArray: CFArrayRef) callconv(.C) CFIndex;
+        pub const CFArrayGetValueAtIndex = fn (theArray: CFArrayRef, idx: CFIndex) callconv(.C) ?*const anyopaque;
+        pub const CFIndex = c_long;
+
+        pub const struct_objc_class = opaque {};
+        pub const Class = ?*struct_objc_class;
+        pub const struct_objc_object = extern struct {
+            isa: Class,
+        };
+        pub const id = ?*struct_objc_object;
+        pub const struct_objc_selector = opaque {};
+        pub const SEL = ?*struct_objc_selector;
+        pub const IMP = ?fn () callconv(.C) void;
+        pub const BOOL = bool;
+        pub const objc_objectptr_t = ?*const anyopaque;
+
+        pub const arith_t = c_long;
+        pub const uarith_t = c_ulong;
+        pub const STR = [*c]u8;
+        pub const ptrdiff_t = c_long;
+        pub const wchar_t = c_int;
+        pub const max_align_t = c_longdouble;
+        pub const struct_objc_method = opaque {};
+        pub const Method = ?*struct_objc_method;
+        pub const struct_objc_ivar = opaque {};
+        pub const Ivar = ?*struct_objc_ivar;
+        pub const struct_objc_category = opaque {};
+        pub const Category = ?*struct_objc_category;
+        pub const struct_objc_property = opaque {};
+        pub const objc_property_t = ?*struct_objc_property;
+        pub const Protocol = struct_objc_object;
+        pub const struct_objc_method_description = extern struct {
+            name: SEL,
+            types: [*c]u8,
+        };
+        pub const objc_property_attribute_t = extern struct {
+            name: [*c]const u8,
+            value: [*c]const u8,
+        };
+
+        pub const sel_getName = fn (sel: SEL) callconv(.C) [*c]const u8;
+        pub const sel_registerName = fn (str: [*c]const u8) callconv(.C) SEL;
+        pub const object_getClassName = fn (obj: id) callconv(.C) [*c]const u8;
+        pub const object_getIndexedIvars = fn (obj: id) callconv(.C) ?*anyopaque;
+        pub const sel_isMapped = fn (sel: SEL) callconv(.C) BOOL;
+        pub const sel_getUid = fn (str: [*c]const u8) callconv(.C) SEL;
+        pub const objc_retainedObject = fn (obj: objc_objectptr_t) callconv(.C) id;
+        pub const objc_unretainedObject = fn (obj: objc_objectptr_t) callconv(.C) id;
+        pub const objc_unretainedPointer = fn (obj: id) callconv(.C) objc_objectptr_t;
+        pub const object_copy = fn (obj: id, size: usize) callconv(.C) id;
+        pub const object_dispose = fn (obj: id) callconv(.C) id;
+        pub const object_getClass = fn (obj: id) callconv(.C) Class;
+        pub const object_setClass = fn (obj: id, cls: Class) callconv(.C) Class;
+        pub const object_isClass = fn (obj: id) callconv(.C) BOOL;
+        pub const object_getIvar = fn (obj: id, ivar: Ivar) callconv(.C) id;
+        pub const object_setIvar = fn (obj: id, ivar: Ivar, value: id) callconv(.C) void;
+        pub const object_setIvarWithStrongDefault = fn (obj: id, ivar: Ivar, value: id) callconv(.C) void;
+        pub const object_setInstanceVariable = fn (obj: id, name: [*c]const u8, value: ?*anyopaque) callconv(.C) Ivar;
+        pub const object_setInstanceVariableWithStrongDefault = fn (obj: id, name: [*c]const u8, value: ?*anyopaque) callconv(.C) Ivar;
+        pub const object_getInstanceVariable = fn (obj: id, name: [*c]const u8, outValue: [*c]?*anyopaque) callconv(.C) Ivar;
+        pub const objc_getClass = fn (name: [*c]const u8) callconv(.C) Class;
+        pub const objc_getMetaClass = fn (name: [*c]const u8) callconv(.C) Class;
+        pub const objc_lookUpClass = fn (name: [*c]const u8) callconv(.C) Class;
+        pub const objc_getRequiredClass = fn (name: [*c]const u8) callconv(.C) Class;
+        pub const objc_getClassList = fn (buffer: [*c]Class, bufferCount: c_int) callconv(.C) c_int;
+        pub const objc_copyClassList = fn (outCount: [*c]c_uint) callconv(.C) [*c]Class;
+        pub const class_getName = fn (cls: Class) callconv(.C) [*c]const u8;
+        pub const class_isMetaClass = fn (cls: Class) callconv(.C) BOOL;
+        pub const class_getSuperclass = fn (cls: Class) callconv(.C) Class;
+        pub const class_setSuperclass = fn (cls: Class, newSuper: Class) callconv(.C) Class;
+        pub const class_getVersion = fn (cls: Class) callconv(.C) c_int;
+        pub const class_setVersion = fn (cls: Class, version: c_int) callconv(.C) void;
+        pub const class_getInstanceSize = fn (cls: Class) callconv(.C) usize;
+        pub const class_getInstanceVariable = fn (cls: Class, name: [*c]const u8) callconv(.C) Ivar;
+        pub const class_getClassVariable = fn (cls: Class, name: [*c]const u8) callconv(.C) Ivar;
+        pub const class_copyIvarList = fn (cls: Class, outCount: [*c]c_uint) callconv(.C) [*c]Ivar;
+        pub const class_getInstanceMethod = fn (cls: Class, name: SEL) callconv(.C) Method;
+        pub const class_getClassMethod = fn (cls: Class, name: SEL) callconv(.C) Method;
+        pub const class_getMethodImplementation = fn (cls: Class, name: SEL) callconv(.C) IMP;
+        pub const class_getMethodImplementation_stret = fn (cls: Class, name: SEL) callconv(.C) IMP;
+        pub const class_respondsToSelector = fn (cls: Class, sel: SEL) callconv(.C) BOOL;
+        pub const class_copyMethodList = fn (cls: Class, outCount: [*c]c_uint) callconv(.C) [*c]Method;
+        pub const class_conformsToProtocol = fn (cls: Class, protocol: [*c]Protocol) callconv(.C) BOOL;
+        pub const class_copyProtocolList = fn (cls: Class, outCount: [*c]c_uint) callconv(.C) [*c][*c]Protocol;
+        pub const class_getProperty = fn (cls: Class, name: [*c]const u8) callconv(.C) objc_property_t;
+        pub const class_copyPropertyList = fn (cls: Class, outCount: [*c]c_uint) callconv(.C) [*c]objc_property_t;
+        pub const class_getIvarLayout = fn (cls: Class) callconv(.C) [*c]const u8;
+        pub const class_getWeakIvarLayout = fn (cls: Class) callconv(.C) [*c]const u8;
+        pub const class_addMethod = fn (cls: Class, name: SEL, imp: IMP, types: [*c]const u8) callconv(.C) BOOL;
+        pub const class_replaceMethod = fn (cls: Class, name: SEL, imp: IMP, types: [*c]const u8) callconv(.C) IMP;
+        pub const class_addIvar = fn (cls: Class, name: [*c]const u8, size: usize, alignment: u8, types: [*c]const u8) callconv(.C) BOOL;
+        pub const class_addProtocol = fn (cls: Class, protocol: [*c]Protocol) callconv(.C) BOOL;
+        pub const class_addProperty = fn (cls: Class, name: [*c]const u8, attributes: [*c]const objc_property_attribute_t, attributeCount: c_uint) callconv(.C) BOOL;
+        pub const class_replaceProperty = fn (cls: Class, name: [*c]const u8, attributes: [*c]const objc_property_attribute_t, attributeCount: c_uint) callconv(.C) void;
+        pub const class_setIvarLayout = fn (cls: Class, layout: [*c]const u8) callconv(.C) void;
+        pub const class_setWeakIvarLayout = fn (cls: Class, layout: [*c]const u8) callconv(.C) void;
+        pub const objc_getFutureClass = fn (name: [*c]const u8) callconv(.C) Class;
+        pub const class_createInstance = fn (cls: Class, extraBytes: usize) callconv(.C) id;
+        pub const objc_constructInstance = fn (cls: Class, bytes: ?*anyopaque) callconv(.C) id;
+        pub const objc_destructInstance = fn (obj: id) callconv(.C) ?*anyopaque;
+        pub const objc_allocateClassPair = fn (superclass: Class, name: [*c]const u8, extraBytes: usize) callconv(.C) Class;
+        pub const objc_registerClassPair = fn (cls: Class) callconv(.C) void;
+        pub const objc_duplicateClass = fn (original: Class, name: [*c]const u8, extraBytes: usize) callconv(.C) Class;
+        pub const objc_disposeClassPair = fn (cls: Class) callconv(.C) void;
+        pub const method_getName = fn (m: Method) callconv(.C) SEL;
+        pub const method_getImplementation = fn (m: Method) callconv(.C) IMP;
+        pub const method_getTypeEncoding = fn (m: Method) callconv(.C) [*c]const u8;
+        pub const method_getNumberOfArguments = fn (m: Method) callconv(.C) c_uint;
+        pub const method_copyReturnType = fn (m: Method) callconv(.C) [*c]u8;
+        pub const method_copyArgumentType = fn (m: Method, index: c_uint) callconv(.C) [*c]u8;
+        pub const method_getReturnType = fn (m: Method, dst: [*c]u8, dst_len: usize) callconv(.C) void;
+        pub const method_getArgumentType = fn (m: Method, index: c_uint, dst: [*c]u8, dst_len: usize) callconv(.C) void;
+        pub const method_getDescription = fn (m: Method) callconv(.C) [*c]struct_objc_method_description;
+        pub const method_setImplementation = fn (m: Method, imp: IMP) callconv(.C) IMP;
+        pub const method_exchangeImplementations = fn (m1: Method, m2: Method) callconv(.C) void;
+        pub const ivar_getName = fn (v: Ivar) callconv(.C) [*c]const u8;
+        pub const ivar_getTypeEncoding = fn (v: Ivar) callconv(.C) [*c]const u8;
+        pub const ivar_getOffset = fn (v: Ivar) callconv(.C) ptrdiff_t;
+        pub const property_getName = fn (property: objc_property_t) callconv(.C) [*c]const u8;
+        pub const property_getAttributes = fn (property: objc_property_t) callconv(.C) [*c]const u8;
+        pub const property_copyAttributeList = fn (property: objc_property_t, outCount: [*c]c_uint) callconv(.C) [*c]objc_property_attribute_t;
+        pub const property_copyAttributeValue = fn (property: objc_property_t, attributeName: [*c]const u8) callconv(.C) [*c]u8;
+        pub const objc_getProtocol = fn (name: [*c]const u8) callconv(.C) [*c]Protocol;
+        pub const objc_copyProtocolList = fn (outCount: [*c]c_uint) callconv(.C) [*c][*c]Protocol;
+        pub const protocol_conformsToProtocol = fn (proto: [*c]Protocol, other: [*c]Protocol) callconv(.C) BOOL;
+        pub const protocol_isEqual = fn (proto: [*c]Protocol, other: [*c]Protocol) callconv(.C) BOOL;
+        pub const protocol_getName = fn (proto: [*c]Protocol) callconv(.C) [*c]const u8;
+        pub const protocol_getMethodDescription = fn (proto: [*c]Protocol, aSel: SEL, isRequiredMethod: BOOL, isInstanceMethod: BOOL) callconv(.C) struct_objc_method_description;
+        pub const protocol_copyMethodDescriptionList = fn (proto: [*c]Protocol, isRequiredMethod: BOOL, isInstanceMethod: BOOL, outCount: [*c]c_uint) callconv(.C) [*c]struct_objc_method_description;
+        pub const protocol_getProperty = fn (proto: [*c]Protocol, name: [*c]const u8, isRequiredProperty: BOOL, isInstanceProperty: BOOL) callconv(.C) objc_property_t;
+        pub const protocol_copyPropertyList = fn (proto: [*c]Protocol, outCount: [*c]c_uint) callconv(.C) [*c]objc_property_t;
+        pub const protocol_copyPropertyList2 = fn (proto: [*c]Protocol, outCount: [*c]c_uint, isRequiredProperty: BOOL, isInstanceProperty: BOOL) callconv(.C) [*c]objc_property_t;
+        pub const protocol_copyProtocolList = fn (proto: [*c]Protocol, outCount: [*c]c_uint) callconv(.C) [*c][*c]Protocol;
+        pub const objc_allocateProtocol = fn (name: [*c]const u8) callconv(.C) [*c]Protocol;
+        pub const objc_registerProtocol = fn (proto: [*c]Protocol) callconv(.C) void;
+        pub const protocol_addMethodDescription = fn (proto: [*c]Protocol, name: SEL, types: [*c]const u8, isRequiredMethod: BOOL, isInstanceMethod: BOOL) callconv(.C) void;
+        pub const protocol_addProtocol = fn (proto: [*c]Protocol, addition: [*c]Protocol) callconv(.C) void;
+        pub const protocol_addProperty = fn (proto: [*c]Protocol, name: [*c]const u8, attributes: [*c]const objc_property_attribute_t, attributeCount: c_uint, isRequiredProperty: BOOL, isInstanceProperty: BOOL) callconv(.C) void;
+        pub const objc_copyImageNames = fn (outCount: [*c]c_uint) callconv(.C) [*c][*c]const u8;
+        pub const class_getImageName = fn (cls: Class) callconv(.C) [*c]const u8;
+        pub const objc_copyClassNamesForImage = fn (image: [*c]const u8, outCount: [*c]c_uint) callconv(.C) [*c][*c]const u8;
+        pub const sel_isEqual = fn (lhs: SEL, rhs: SEL) callconv(.C) BOOL;
+        pub const objc_enumerationMutation = fn (obj: id) callconv(.C) void;
+        pub const objc_setEnumerationMutationHandler = fn (handler: ?fn (id) callconv(.C) void) callconv(.C) void;
+        pub const objc_setForwardHandler = fn (fwd: ?*anyopaque, fwd_stret: ?*anyopaque) callconv(.C) void;
+        pub const imp_implementationWithBlock = fn (block: id) callconv(.C) IMP;
+        pub const imp_getBlock = fn (anImp: IMP) callconv(.C) id;
+        pub const imp_removeBlock = fn (anImp: IMP) callconv(.C) BOOL;
+        pub const objc_loadWeak = fn (location: [*c]id) callconv(.C) id;
+        pub const objc_storeWeak = fn (location: [*c]id, obj: id) callconv(.C) id;
+        pub const objc_AssociationPolicy = usize;
+        pub const OBJC_ASSOCIATION_ASSIGN: c_int = 0;
+        pub const OBJC_ASSOCIATION_RETAIN_NONATOMIC: c_int = 1;
+        pub const OBJC_ASSOCIATION_COPY_NONATOMIC: c_int = 3;
+        pub const OBJC_ASSOCIATION_RETAIN: c_int = 769;
+        pub const OBJC_ASSOCIATION_COPY: c_int = 771;
+        const enum_unnamed_1 = c_uint;
+        pub const objc_setAssociatedObject = fn (object: id, key: ?*const anyopaque, value: id, policy: objc_AssociationPolicy) callconv(.C) void;
+        pub const objc_getAssociatedObject = fn (object: id, key: ?*const anyopaque) callconv(.C) id;
+        pub const objc_removeAssociatedObjects = fn (object: id) callconv(.C) void;
+        pub const objc_hook_getImageName = ?fn (Class, [*c][*c]const u8) callconv(.C) BOOL;
+        pub const objc_setHook_getImageName = fn (newValue: objc_hook_getImageName, outOldValue: [*c]objc_hook_getImageName) callconv(.C) void;
+        pub const objc_hook_getClass = ?fn ([*c]const u8, [*c]Class) callconv(.C) BOOL;
+        pub const objc_setHook_getClass = fn (newValue: objc_hook_getClass, outOldValue: [*c]objc_hook_getClass) callconv(.C) void;
+        pub const struct_mach_header = opaque {};
+        pub const objc_func_loadImage = ?fn (?*const struct_mach_header) callconv(.C) void;
+        pub const objc_addLoadImageFunc = fn (func: objc_func_loadImage) callconv(.C) void;
+        pub const objc_hook_lazyClassNamer = ?fn (Class) callconv(.C) [*c]const u8;
+        pub const objc_setHook_lazyClassNamer = fn (newValue: objc_hook_lazyClassNamer, oldOutValue: [*c]objc_hook_lazyClassNamer) callconv(.C) void;
+        pub const _objc_swiftMetadataInitializer = ?fn (Class, ?*anyopaque) callconv(.C) Class;
+        pub const _objc_realizeClassFromSwift = fn (cls: Class, previously: ?*anyopaque) callconv(.C) Class;
+        pub const struct_objc_method_list = opaque {};
+        pub const class_lookupMethod = fn (cls: Class, sel: SEL) callconv(.C) IMP;
+        pub const class_respondsToMethod = fn (cls: Class, sel: SEL) callconv(.C) BOOL;
+        pub const _objc_flush_caches = fn (cls: Class) callconv(.C) void;
+        pub const object_copyFromZone = fn (anObject: id, nBytes: usize, z: ?*anyopaque) callconv(.C) id;
+        pub const class_createInstanceFromZone = fn (Class, idxIvars: usize, z: ?*anyopaque) callconv(.C) id;
+        pub inline fn __P(protos: anytype) @TypeOf(protos) {
+            return protos;
+        }
+        pub const @"bool" = bool;
+        pub const @"true" = @as(c_int, 1);
+        pub const @"false" = @as(c_int, 0);
+        pub const __bool_true_false_are_defined = @as(c_int, 1);
+        pub const OBJC_BOOL_IS_BOOL = @as(c_int, 1);
+        pub const OBJC_BOOL_DEFINED = "";
+        pub const Nil = @as(usize, 0);
+        pub const nil = @as(usize, 0);
+        pub const __autoreleasing = "";
+        pub const ARITH_SHIFT = @as(c_int, 32);
+        pub inline fn ISSELECTOR(sel: anytype) @TypeOf(sel_isMapped(sel)) {
+            return sel_isMapped(sel);
+        }
+        pub inline fn SELNAME(sel: anytype) @TypeOf(sel_getName(sel)) {
+            return sel_getName(sel);
+        }
+        pub inline fn SELUID(str: anytype) @TypeOf(sel_getUid(str)) {
+            return sel_getUid(str);
+        }
+        pub inline fn NAMEOF(obj: anytype) @TypeOf(object_getClassName(obj)) {
+            return object_getClassName(obj);
+        }
+        pub inline fn IV(obj: anytype) @TypeOf(object_getIndexedIvars(obj)) {
+            return object_getIndexedIvars(obj);
+        }
+        pub const NULL = @import("std").zig.c_translation.cast(?*anyopaque, @as(c_int, 0));
+        pub const objc_class = struct_objc_class;
+        pub const objc_object = struct_objc_object;
+        pub const objc_selector = struct_objc_selector;
+        pub const objc_method = struct_objc_method;
+        pub const objc_ivar = struct_objc_ivar;
+        pub const objc_category = struct_objc_category;
+        pub const objc_property = struct_objc_property;
+        pub const objc_method_description = struct_objc_method_description;
+        pub const mach_header = struct_mach_header;
+        pub const objc_method_list = struct_objc_method_list;
+    };
+};

src/javascript/jsc/api/bun.zig

@@ -1202,9 +1202,173 @@ pub const Class = NewClass(
         .SHA512_256 = .{
             .get = Crypto.SHA512_256.getter,
         },
+        .Clipboard = .{
+            .get = Clipboard.getter,
+        },
     },
 );
 
+pub const Clipboard = struct {
+    const macOS = @import("../../../deps/objc.zig").ObjC;
+    pub const Class = NewClass(
+        void,
+        .{ .name = "Clipboard" },
+        .{
+            .readText = .{
+                .rfn = JSC.wrapWithHasContainer(Clipboard, "readText", false, false),
+            },
+            .readPNG = .{
+                .rfn = JSC.wrapWithHasContainer(Clipboard, "readPNG", false, false),
+            },
+            .writeText = .{
+                .rfn = JSC.wrapWithHasContainer(Clipboard, "writeText", false, false),
+            },
+            .writePNG = .{
+                .rfn = JSC.wrapWithHasContainer(Clipboard, "writePNG", false, false),
+            },
+        },
+        .{},
+    );
+
+    pub fn getter(
+        _: void,
+        ctx: js.JSContextRef,
+        _: js.JSValueRef,
+        _: js.JSStringRef,
+        _: js.ExceptionRef,
+    ) js.JSValueRef {
+        var existing = ctx.ptr().getCachedObject(&ZigString.init("BunClipboard"));
+        if (existing.isEmpty()) {
+            return ctx.ptr().putCachedObject(
+                &ZigString.init("BunClipboard"),
+                JSC.JSValue.c(JSC.C.JSObjectMake(ctx, Clipboard.Class.get().*, null)),
+            ).asObjectRef();
+        }
+
+        return existing.asObjectRef();
+    }
+
+    pub fn readText(
+        global: *JSC.JSGlobalObject,
+        exception: JSC.C.ExceptionRef,
+    ) JSC.JSValue {
+        if (comptime !Environment.isMac) {
+            return JSC.JSValue.jsUndefined();
+        }
+
+        var data = macOS.Clipboard.get(bun.default_allocator, .string) catch |err| {
+            JSC.JSError(bun.default_allocator, "Error reading clipboard {s}", .{@errorName(err)}, global.ref(), exception);
+            return JSC.JSValue.jsUndefined();
+        };
+        var text = ZigString.init(data).withEncoding();
+        if (text.isUTF8()) {
+            var ret = text.toValueGC(global);
+            bun.default_allocator.free(data);
+            return JSC.JSPromise.resolvedPromiseValue(global, ret);
+        }
+        text.mark();
+        return JSC.JSPromise.resolvedPromiseValue(global, text.toExternalValue(global));
+    }
+    pub fn readPNG(
+        global: *JSC.JSGlobalObject,
+        exception: JSC.C.ExceptionRef,
+    ) JSC.JSValue {
+        if (comptime !Environment.isMac) {
+            return JSC.JSValue.jsUndefined();
+        }
+
+        var data = macOS.Clipboard.get(bun.default_allocator, .png) catch |err| {
+            JSC.JSError(bun.default_allocator, "Error reading clipboard {s}", .{@errorName(err)}, global.ref(), exception);
+            return JSC.JSValue.jsUndefined();
+        };
+        if (data.len == 0) {
+            return JSC.JSPromise.resolvedPromiseValue(global, JSC.JSValue.jsUndefined());
+        }
+
+        var blob = JSC.WebCore.Blob.initWithStore(JSC.WebCore.Blob.Store.init(data, bun.default_allocator) catch unreachable, global);
+        var ptr = bun.default_allocator.create(JSC.WebCore.Blob) catch unreachable;
+        ptr.* = blob;
+        ptr.allocator = bun.default_allocator;
+        return JSC.JSPromise.resolvedPromiseValue(global, JSC.JSValue.c(JSC.WebCore.Blob.Class.make(global.ref(), ptr)));
+    }
+    pub fn writeText(
+        global: *JSGlobalObject,
+        text: ZigString,
+    ) JSC.JSValue {
+        if (comptime !Environment.isMac) {
+            return JSC.JSValue.jsUndefined();
+        }
+
+        var slice = text.toSlice(bun.default_allocator);
+        defer slice.deinit();
+        var data = slice.slice();
+        macOS.Clipboard.set(.string, data) catch {
+            return ZigString.init("Error writing to clipboard").toErrorInstance(global);
+        };
+        return JSC.JSPromise.resolvedPromiseValue(global, JSC.JSValue.jsUndefined());
+    }
+    pub fn writePNG(
+        global: *JSGlobalObject,
+        blob_value: JSValue,
+    ) JSC.JSValue {
+        if (comptime !Environment.isMac) {
+            return JSC.JSValue.jsUndefined();
+        }
+
+        var blob = blob_value.as(JSC.WebCore.Blob) orelse {
+            var err = ZigString.init("Expected Blob").toErrorInstance(global);
+            return JSC.JSPromise.rejectedPromiseValue(global, err);
+        };
+        if (blob.needsToReadFile()) {
+            var sink = bun.default_allocator.create(ClipboardPromise) catch unreachable;
+            sink.* = .{
+                .promise = JSC.JSPromise.create(global),
+                .global = global,
+            };
+            blob.doReadFileInternal(*ClipboardPromise, sink, ClipboardPromise.onFinishedLoading, global);
+            return sink.promise.asValue(global);
+        }
+
+        doWritePNG(blob.sharedView()) catch {
+            return JSC.JSPromise.rejectedPromiseValue(global, ZigString.init("Error writing to clipboard").toErrorInstance(global));
+        };
+
+        return JSC.JSPromise.resolvedPromiseValue(global, JSC.JSValue.jsUndefined());
+    }
+
+    pub fn doWritePNG(blob: []const u8) !void {
+        if (comptime !Environment.isMac) {
+            return;
+        }
+
+        try macOS.Clipboard.set(.png, blob);
+    }
+
+    const ClipboardPromise = struct {
+        promise: *JSC.JSPromise,
+        global: *JSGlobalObject,
+
+        pub fn onFinishedLoading(sink: *ClipboardPromise, bytes: JSC.WebCore.Blob.Store.ReadFile.ResultType) void {
+            switch (bytes) {
+                .err => |err| {
+                    sink.promise.reject(sink.global, err.toErrorInstance(sink.global));
+                    bun.default_allocator.destroy(sink);
+                    return;
+                },
+                .result => |data| {
+                    doWritePNG(data.buf) catch {
+                        sink.promise.reject(sink.global, ZigString.init("Error writing to clipboard").toErrorInstance(sink.global));
+                        bun.default_allocator.destroy(sink);
+                        return;
+                    };
+                    sink.promise.resolve(sink.global, JSC.JSValue.jsUndefined());
+                    bun.default_allocator.destroy(sink);
+                },
+            }
+        }
+    };
+};
+
 pub const Crypto = struct {
     const Hashers = @import("../../../sha.zig");