75 lines
2.3 KiB
Zig
75 lines
2.3 KiB
Zig
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const std = @import("std");
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const c = @import("c.zig");
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const objc = @import("main.zig");
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const MsgSend = @import("msg_send.zig").MsgSend;
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pub const Class = struct {
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value: c.Class,
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pub usingnamespace MsgSend(Class);
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/// Returns the class definition of a specified class.
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pub fn getClass(name: [:0]const u8) ?Class {
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return Class{
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.value = c.objc_getClass(name.ptr) orelse return null,
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};
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}
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/// Returns a property with a given name of a given class.
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pub fn getProperty(self: Class, name: [:0]const u8) ?objc.Property {
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return objc.Property{
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.value = c.class_getProperty(self.value, name.ptr) orelse return null,
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};
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}
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/// Describes the properties declared by a class. This must be freed.
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pub fn copyPropertyList(self: Class) []objc.Property {
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var count: c_uint = undefined;
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const list = @ptrCast([*c]objc.Property, c.class_copyPropertyList(self.value, &count));
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if (count == 0) return list[0..0];
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return list[0..count];
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}
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};
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test "getClass" {
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const testing = std.testing;
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const NSObject = Class.getClass("NSObject");
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try testing.expect(NSObject != null);
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try testing.expect(Class.getClass("NoWay") == null);
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}
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test "msgSend" {
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const testing = std.testing;
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const NSObject = Class.getClass("NSObject").?;
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// Should work with primitives
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const id = NSObject.msgSend(c.id, objc.Sel.registerName("alloc"), .{});
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try testing.expect(id != null);
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{
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const obj: objc.Object = .{ .value = id };
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obj.msgSend(void, objc.sel("dealloc"), .{});
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}
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// Should work with our wrappers
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const obj = NSObject.msgSend(objc.Object, objc.Sel.registerName("alloc"), .{});
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try testing.expect(obj.value != null);
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obj.msgSend(void, objc.sel("dealloc"), .{});
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}
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test "getProperty" {
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const testing = std.testing;
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const NSObject = Class.getClass("NSObject").?;
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try testing.expect(NSObject.getProperty("className") != null);
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try testing.expect(NSObject.getProperty("nope") == null);
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}
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test "copyProperyList" {
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const testing = std.testing;
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const NSObject = Class.getClass("NSObject").?;
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const list = NSObject.copyPropertyList();
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defer objc.free(list);
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try testing.expect(list.len > 20);
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}
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