abuse macros..

src/widget/position/span.rs

@@ -151,7 +151,7 @@ pub struct SpanBuilder<State, const LEN: usize, Wa: WidgetArrLike<State, LEN, Ta
     _pd: PhantomData<(State, Tag)>,
 }
 
-impl<State, const LEN: usize, Wa: WidgetArrLike<State, LEN, Tag>, Tag> FnOnce<(&mut State,)>
+impl<State: StateLike<State>, const LEN: usize, Wa: WidgetArrLike<State, LEN, Tag>, Tag> FnOnce<(&mut State,)>
     for SpanBuilder<State, LEN, Wa, Tag>
 {
     type Output = Span;

src/widget/position/stack.rs

@@ -48,7 +48,7 @@ pub struct StackBuilder<State, const LEN: usize, Wa: WidgetArrLike<State, LEN, T
     _pd: PhantomData<(State, Tag)>,
 }
 
-impl<State, const LEN: usize, Wa: WidgetArrLike<State, LEN, Tag>, Tag> FnOnce<(&mut State,)>
+impl<State: StateLike<State>, const LEN: usize, Wa: WidgetArrLike<State, LEN, Tag>, Tag> FnOnce<(&mut State,)>
     for StackBuilder<State, LEN, Wa, Tag>
 {
     type Output = Stack;

src/widget/text/build.rs

@@ -51,7 +51,7 @@ impl<State, O, H: WidgetOption<State>> TextBuilder<State, O, H> {
     }
 }
 
-impl<State: HasUi + 'static, O> TextBuilder<State, O> {
+impl<State: HasUi + StateLike<State>, O> TextBuilder<State, O> {
     pub fn hint<W: WidgetLike<State, Tag>, Tag>(
         self,
         hint: W,

src/widget/trait_fns.rs

@@ -3,7 +3,7 @@ use crate::prelude::*;
 
 // these methods should "not require any context" (require unit) because they're in core
 widget_trait! {
-    pub trait CoreWidget<State: HasUi + 'static>;
+    pub trait CoreWidget<State: HasUi + StateLike<State> + 'static>;
 
     fn pad(self, padding: impl Into<Padding>) -> impl WidgetFn<State, Pad> {
         |state| Pad {