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const std = @import("std");
const c = @import("c");
const zpy = @import("../root.zig");
const Self = @This();
id: c_int,
pub const Callback = fn (*zpy.Type) error{Exception}!void;
pub fn add(callback: Callback) !Self {
const wrapper = struct {
pub fn wrapper(t: [*c]c.PyObject) callconv(.c) c_int {
return if (std.meta.isError(callback(@ptrCast(t)))) -1 else 0;
}
};
const result = c.PyType_AddWatcher(&wrapper);
if (result == -1) {
return error.Exception;
}
return .{ .id = result };
}
pub fn clear(self: Self) !void {
if (c.PyType_Clear(self.id) == -1) {
return error.Exception;
}
}
pub fn watch(self: Self, t: *zpy.Dict) !void {
if (c.PyType_Watch(self.id, t) == -1) {
return error.Exception;
}
}
pub fn unwatch(self: Self, t: *zpy.Dict) !void {
if (c.PyType_Unwatch(self.id, t) == -1) {
return error.Exception;
}
}
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