pkg/objc starting

build.zig

@@ -11,6 +11,7 @@ const libxml2 = @import("vendor/zig-libxml2/libxml2.zig");
 const libuv = @import("pkg/libuv/build.zig");
 const libpng = @import("pkg/libpng/build.zig");
 const macos = @import("pkg/macos/build.zig");
+const objc = @import("pkg/objc/build.zig");
 const stb_image_resize = @import("pkg/stb_image_resize/build.zig");
 const utf8proc = @import("pkg/utf8proc/build.zig");
 const zlib = @import("pkg/zlib/build.zig");
@@ -194,6 +195,7 @@ fn addDeps(
     step.addPackage(imgui.pkg);
     step.addPackage(glfw.pkg);
     step.addPackage(libuv.pkg);
+    step.addPackage(objc.pkg);
     step.addPackage(stb_image_resize.pkg);
     step.addPackage(utf8proc.pkg);
 

pkg/objc/build.zig

@@ -0,0 +1,10 @@
+const std = @import("std");
+
+pub const pkg = std.build.Pkg{
+    .name = "objc",
+    .source = .{ .path = thisDir() ++ "/main.zig" },
+};
+
+fn thisDir() []const u8 {
+    return std.fs.path.dirname(@src().file) orelse ".";
+}

pkg/objc/c.zig

@@ -0,0 +1,4 @@
+pub usingnamespace @cImport({
+    @cInclude("objc/runtime.h");
+    @cInclude("objc/message.h");
+});

pkg/objc/class.zig

@@ -0,0 +1,20 @@
+const std = @import("std");
+const c = @import("c.zig");
+
+pub const Class = struct {
+    value: c.Class,
+
+    /// Returns the class definition of a specified class.
+    pub fn getClass(name: [:0]const u8) ?Class {
+        return Class{
+            .value = c.objc_getClass(name.ptr) orelse return null,
+        };
+    }
+};
+
+test {
+    const testing = std.testing;
+    const NSObject = Class.getClass("NSObject");
+    try testing.expect(NSObject != null);
+    try testing.expect(Class.getClass("NoWay") == null);
+}

pkg/objc/main.zig

@@ -0,0 +1,6 @@
+pub const c = @import("c.zig");
+pub usingnamespace @import("class.zig");
+
+test {
+    @import("std").testing.refAllDecls(@This());
+}