Say from_axes, which is what a constructor is called

`per_axis` on `PlaceDesc` and `Declared` builds a pair by asking for each
axis. `from_axis` beside it already names the three-argument form, so the
plural is the one that takes a function, and both follow Rust's convention
for a constructor rather than an invented word.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

core/src/ui/painter.rs

@@ -648,7 +648,7 @@ impl Widgets {
     pub(crate) fn declared_lens(&self, id: WidgetId) -> Declared {
         let rules = self.size_rules(id);
         let widget = self.get_dyn(id);
-        Declared::per_axis(|axis| {
+        Declared::from_axes(|axis| {
             rules[axis].declared().or_else(|| {
                 // A hint still narrows the box where no rule does, which is
                 // how a widget with a natural pixel size -- an image, a gap

core/src/ui/place.rs

@@ -147,7 +147,7 @@ impl PlaceDesc {
 
     /// A description per axis, where the two differ and neither is the
     /// axis a container divides.
-    pub fn per_axis(f: impl Fn(Axis) -> PlaceDescAxis) -> Self {
+    pub fn from_axes(f: impl Fn(Axis) -> PlaceDescAxis) -> Self {
         Self::new(f(Axis::X), f(Axis::Y))
     }
 

core/src/widget/size_rule.rs

@@ -83,7 +83,7 @@ pub struct Declared {
 impl Declared {
     pub const NONE: Self = Self { x: None, y: None };
 
-    pub fn per_axis(f: impl Fn(Axis) -> Option<Len>) -> Self {
+    pub fn from_axes(f: impl Fn(Axis) -> Option<Len>) -> Self {
         Self {
             x: f(Axis::X),
             y: f(Axis::Y),

src/widget/position/stack.rs

@@ -31,7 +31,7 @@ impl Widget for Stack {
         // fraction under them is a fraction of it. A share leaves the axis
         // to whoever gave the stack its box. Where a child sits in a box
         // bigger than itself is its own business.
-        let place = PlaceDesc::per_axis(|axis| {
+        let place = PlaceDesc::from_axes(|axis| {
             let len = size[axis];
             match len.leftover == Weight::ZERO {
                 true => len.without_leftover().as_desc().fills(),