Updates for recent versions of Rust.

* Added lots of dyns
* Removed unused whitespace.
* Removed rust-toolchain because stable rust compiles the project.
* Fixed Doc-tests with ignore keyword.

alchemy/src/app.rs

@@ -28,7 +28,7 @@ impl AppDelegate for DefaultAppDelegate {}
 /// also stored here for easy access.
 pub struct App {
     pub(crate) bridge: Mutex<Option<PlatformAppBridge>>,
-    pub delegate: Mutex<Box<AppDelegate>>,
+    pub delegate: Mutex<Box<dyn AppDelegate>>,
     pub windows: WindowManager
 }
 

alchemy/src/components/fragment.rs

@@ -12,7 +12,7 @@ pub struct FragmentProps;
 /// Fragments are special - you can do something like the following in cases where you
 /// want to render some views without requiring an intermediate view.
 ///
-/// ```
+/// ```ignore
 /// <Fragment>
 ///     <View />
 ///     <View />
@@ -29,7 +29,7 @@ impl Fragment {
 }
 
 impl Props for Fragment {
-    fn set_props(&mut self, _: &mut std::any::Any) {}
+    fn set_props(&mut self, _: &mut dyn std::any::Any) {}
 }
 
 impl Component for Fragment {

alchemy/src/components/text.rs

@@ -22,7 +22,7 @@ pub struct TextProps;
 ///
 /// Views accept styles and event callbacks as props. For example:
 ///
-/// ```
+/// ```ignore
 /// <Text styles=["styleKey1", "styleKey2"] />
 /// ```
 pub struct Text(Mutex<PlatformTextBridge>);
@@ -38,7 +38,7 @@ impl Text {
 }
 
 impl Props for Text {
-    fn set_props(&mut self, _: &mut std::any::Any) {}
+    fn set_props(&mut self, _: &mut dyn std::any::Any) {}
 }
 
 impl Component for Text {

alchemy/src/components/view.rs

@@ -24,7 +24,7 @@ pub struct ViewProps;
 ///
 /// Views accept styles and event callbacks as props. For example:
 ///
-/// ```
+/// ```ignore
 /// <View styles=["styleKey1", "styleKey2"] />
 /// ```
 pub struct View {
@@ -46,7 +46,7 @@ impl View {
 }
 
 impl Props for View {
-    fn set_props(&mut self, _: &mut std::any::Any) {}
+    fn set_props(&mut self, _: &mut dyn std::any::Any) {}
 }
 
 impl Component for View {

alchemy/src/window/manager.rs

@@ -32,7 +32,7 @@ impl WindowManager {
     /// Adds an `AppWindow` to this instance.
     pub(crate) fn add(&self, window: Arc<Mutex<AppWindow>>) {
         let mut windows = self.0.lock().unwrap();
-        if let None = windows.iter().position(|w| Arc::ptr_eq(&w, &window)) {
+        if windows.iter().position(|w| Arc::ptr_eq(&w, &window)).is_none() {
             windows.push(window);
         }
     }

alchemy/src/window/window.rs

@@ -24,7 +24,7 @@ pub struct AppWindow {
     pub title: String,
     pub dimensions: (f64, f64, f64, f64),
     pub bridge: PlatformWindowBridge,
-    pub delegate: Box<WindowDelegate>,
+    pub delegate: Box<dyn WindowDelegate>,
     pub render_key: ComponentKey
 }
 
@@ -107,7 +107,7 @@ impl Window {
             style_keys: "".into(),
             title: "".into(),
             dimensions: (0., 0., 0., 0.),
-            bridge: bridge,
+            bridge,
             delegate: Box::new(delegate),
             render_key: key
         })))

clippy.toml

@@ -1,4 +1,4 @@
-cyclomatic-complexity-threshold = 30
+cognitive-complexity-threshold = 30
 doc-valid-idents = [
   "MiB", "GiB", "TiB", "PiB", "EiB",
   "DirectX", "OpenGL", "TrueType",

cocoa/src/app.rs

@@ -1,7 +1,7 @@
 //! A wrapper for `NSApplication` on macOS. If you opt in to the `cocoa` feature on
 //! Alchemy, this will loop system-level application events back to your `AppDelegate`.
 
-use std::sync::{Once, ONCE_INIT};
+use std::sync::{Once};
 
 use cocoa::base::{id, nil};
 use cocoa::appkit::{NSApplication, NSRunningApplication};
@@ -127,7 +127,7 @@ extern fn will_terminate<T: AppDelegate>(this: &Object, _: Sel, _: id) {
 /// pointers we need to have.
 fn register_app_delegate_class<T: AppDelegate>() -> *const Class {
     static mut DELEGATE_CLASS: *const Class = 0 as *const Class;
-    static INIT: Once = ONCE_INIT;
+    static INIT: Once = Once::new();
 
     INIT.call_once(|| unsafe {
         let superclass = Class::get("NSObject").unwrap();

cocoa/src/text.rs

@@ -1,7 +1,7 @@
 //! This wraps NTextField on macOS, and configures it to act like a label
 //! with standard behavior that most users would expect.
 
-use std::sync::{Once, ONCE_INIT};
+use std::sync::{Once};
 
 use objc_id::{Id, ShareId};
 use objc::{msg_send, sel, sel_impl};
@@ -112,7 +112,7 @@ extern fn enforce_normalcy(_: &Object, _: Sel) -> BOOL {
 /// to store.
 fn register_class() -> *const Class {
     static mut VIEW_CLASS: *const Class = 0 as *const Class;
-    static INIT: Once = ONCE_INIT;
+    static INIT: Once = Once::new();
 
     INIT.call_once(|| unsafe {
         let superclass = Class::get("NSTextField").unwrap();

cocoa/src/view.rs

@@ -1,7 +1,7 @@
 //! Implements a View Component struct. The most common
 //! basic building block of any app. Wraps NSView on macOS.
 
-use std::sync::{Once, ONCE_INIT};
+use std::sync::{Once};
 
 use objc_id::{Id, ShareId};
 use objc::{msg_send, sel, sel_impl};
@@ -107,7 +107,7 @@ extern fn update_layer(this: &Object, _: Sel) {
 /// to store.
 fn register_class() -> *const Class {
     static mut VIEW_CLASS: *const Class = 0 as *const Class;
-    static INIT: Once = ONCE_INIT;
+    static INIT: Once = Once::new();
 
     INIT.call_once(|| unsafe {
         let superclass = Class::get("NSView").unwrap();

cocoa/src/window.rs

@@ -2,7 +2,7 @@
 //! Cocoa and associated widgets. This also handles looping back
 //! lifecycle events, such as window resizing or close events.
 
-use std::sync::{Once, ONCE_INIT};
+use std::sync::{Once};
 
 use cocoa::base::{id, nil, YES, NO};
 use cocoa::appkit::{NSWindow, NSWindowStyleMask, NSBackingStoreType};
@@ -149,7 +149,7 @@ extern fn will_close<T: AppDelegate>(this: &Object, _: Sel, _: id) {
 /// need to do.
 fn register_window_class<T: AppDelegate>() -> *const Class {
     static mut DELEGATE_CLASS: *const Class = 0 as *const Class;
-    static INIT: Once = ONCE_INIT;
+    static INIT: Once = Once::new();
 
     INIT.call_once(|| unsafe {
         let superclass = Class::get("NSObject").unwrap();

lifecycle/src/error.rs

@@ -4,4 +4,4 @@
 
 /// A generic Error type that we use. It currently just aliases to `Box<std::error::Error>`,
 /// but could change in the future.
-pub type Error = Box<std::error::Error>;
+pub type Error = Box<dyn std::error::Error>;

lifecycle/src/reconciler/generic_root_view_stub.rs

@@ -21,7 +21,7 @@ impl GenericRootView {
 }
 
 impl Props for GenericRootView {
-    fn set_props(&mut self, _: &mut Any) {}    
+    fn set_props(&mut self, _: &mut dyn Any) {}
 }
 
 impl Component for GenericRootView {

lifecycle/src/reconciler/mod.rs

@@ -53,7 +53,7 @@ impl RenderEngine {
     /// they get a key back. When they want to instruct the global `RenderEngine`
     /// to re-render or update their tree, they pass that key and whatever the new tree
     /// should be.
-    pub fn register_root_component<C: Component + 'static>(&self, component: C) -> Result<ComponentKey, Box<Error>> {
+    pub fn register_root_component<C: Component + 'static>(&self, component: C) -> Result<ComponentKey, Box<dyn Error>> {
         // Conceivably, this doesn't NEED to be a thing... but for now it is. If you've stumbled
         // upon here, wayward traveler, in need of a non-native-root-component, please open an
         // issue to discuss. :)
@@ -85,7 +85,7 @@ impl RenderEngine {
         key: ComponentKey,
         dimensions: (f64, f64),
         child: RSX
-    ) -> Result<(), Box<Error>> {
+    ) -> Result<(), Box<dyn Error>> {
         let mut component_store = self.components.lock().unwrap();
         let mut layout_store = self.layouts.lock().unwrap();
 
@@ -138,7 +138,7 @@ fn recursively_diff_tree(
     new_tree: RSX,
     component_store: &mut ComponentStore,
     layout_store: &mut LayoutStore
-) -> Result<(), Box<Error>> {
+) -> Result<(), Box<dyn Error>> {
     // First we need to determine if this node is being replaced or updated. A replace happens if
     // two nodes are different types - in this case, we check their tag values. This is also a case
     // where, for instance, if the RSX tag is `::None` or `::VirtualText`, we'll treat it as
@@ -224,7 +224,7 @@ fn mount_component_tree(
     tree: VirtualNode,
     component_store: &mut ComponentStore,
     layout_store: &mut LayoutStore
-) -> Result<ComponentKey, Box<Error>> {
+) -> Result<ComponentKey, Box<dyn Error>> {
     let key = component_store.new_key();
     let component = (tree.create_component_fn)(key);
     let is_native_backed = component.has_native_backing_node();
@@ -298,7 +298,7 @@ fn unmount_component_tree(
     key: ComponentKey,
     component_store: &mut ComponentStore,
     layout_store: &mut LayoutStore
-) -> Result<Vec<LayoutNode>, Box<Error>> {
+) -> Result<Vec<LayoutNode>, Box<dyn Error>> {
     let mut instance = component_store.remove(key)?;
     instance.component.component_will_unmount();
 
@@ -337,7 +337,7 @@ fn link_layout_nodess(
     child: ComponentKey,
     components: &mut ComponentStore,
     layouts: &mut LayoutStore
-) -> Result<(), Box<Error>> {
+) -> Result<(), Box<dyn Error>> {
     if let (Ok(parent_instance), Ok(child_instance)) = (components.get(parent), components.get(child)) {
         if let (Some(parent_layout), Some(child_layout)) = (parent_instance.layout, child_instance.layout) {
             layouts.add_child(parent_layout, child_layout)?;
@@ -364,7 +364,7 @@ fn walk_and_apply_styles(
     key: ComponentKey,
     components: &mut ComponentStore,
     layouts: &mut LayoutStore
-) -> Result<(), Box<Error>> {
+) -> Result<(), Box<dyn Error>> {
     let instance = components.get_mut(key)?;
 
     if let Some(layout_key) = instance.layout {

lifecycle/src/rsx/mod.rs

@@ -31,7 +31,7 @@ impl RSX {
     pub fn node<P: Any + 'static>(
         tag: &'static str,
         styles: StylesList,
-        create_fn: fn(key: ComponentKey) -> Box<Component>,
+        create_fn: fn(key: ComponentKey) -> Box<dyn Component>,
         props: P,
         children: Vec<RSX>
     ) -> RSX {

lifecycle/src/rsx/virtual_node.rs

@@ -22,12 +22,12 @@ pub struct VirtualNode {
 
     /// `Component` instances are created on-demand, if the reconciler deems it be so. This
     /// is a closure that should return an instance of the correct type.
-    pub create_component_fn: fn(key: ComponentKey) -> Box<Component>,
+    pub create_component_fn: fn(key: ComponentKey) -> Box<dyn Component>,
 
     /// When some RSX is returned, we scoop up the props inside a special block, and then shove
     /// them in here as an `Any` object. When you `derive(Props)` on a `Component` struct, it
     /// creates a setter that specifically handles downcasting and persisting props for you.
-    pub props: Box<Any>,
+    pub props: Box<dyn Any>,
 
     /// Child components for this node.
     pub children: Vec<RSX>

lifecycle/src/traits.rs

@@ -73,7 +73,7 @@ pub trait WindowDelegate: Send + Sync {
 }
 
 pub trait Props {
-    fn set_props(&mut self, new_props: &mut Any);
+    fn set_props(&mut self, new_props: &mut dyn Any);
 }
 
 /// The `Component` lifecycle, mostly inspired from React, with a few extra methods for views that

rust-toolchain

@@ -1 +0,0 @@
-1.35.0

styles/src/color.rs

@@ -51,10 +51,10 @@ impl Color {
     #[inline]
     pub fn new(red: u8, green: u8, blue: u8, alpha: u8) -> Self {
         Color {
-            red: red,
+            red,
-            green: green,
+            green,
-            blue: blue,
+            blue,
-            alpha: alpha,
+            alpha,
         }
     }
 
@@ -501,9 +501,9 @@ pub fn parse_color_keyword(ident: &str) -> Result<Color, ()> {
 #[inline]
 fn from_hex(c: u8) -> Result<u8, ()> {
     match c {
-        b'0'...b'9' => Ok(c - b'0'),
+        b'0'..=b'9' => Ok(c - b'0'),
-        b'a'...b'f' => Ok(c - b'a' + 10),
+        b'a'..=b'f' => Ok(c - b'a' + 10),
-        b'A'...b'F' => Ok(c - b'A' + 10),
+        b'A'..=b'F' => Ok(c - b'A' + 10),
         _ => Err(()),
     }
 }
@@ -663,5 +663,5 @@ where
     let red = clamp_unit_f32(hue_to_rgb(m1, m2, hue_times_3 + 1.));
     let green = clamp_unit_f32(hue_to_rgb(m1, m2, hue_times_3));
     let blue = clamp_unit_f32(hue_to_rgb(m1, m2, hue_times_3 - 1.));
-    return Ok((red, green, blue, uses_commas));
+    Ok((red, green, blue, uses_commas))
 }

styles/src/stretch/algo.rs

@@ -54,7 +54,7 @@ struct FlexLine {
 }
 
 impl Stretch {
-    pub(crate) fn compute(&mut self, root: Node, size: Size<Number>) -> Result<(), Box<Any>> {
+    pub(crate) fn compute(&mut self, root: Node, size: Size<Number>) -> Result<(), Box<dyn Any>> {
         let style = self.style[&root];
         let has_root_min_max = style.min_size.width.is_defined()
             || style.min_size.height.is_defined()
@@ -133,7 +133,7 @@ impl Stretch {
         node_size: Size<Number>,
         parent_size: Size<Number>,
         perform_layout: bool,
-    ) -> Result<ComputeResult, Box<Any>> {
+    ) -> Result<ComputeResult, Box<dyn Any>> {
         *self.is_dirty.get_mut(node).unwrap() = false;
 
         // First we check if we have a result for the given input
@@ -277,7 +277,7 @@ impl Stretch {
 
         // TODO - this does not follow spec. See commented out code below
         // 3. Determine the flex base size and hypothetical main size of each item:
-        flex_items.iter_mut().try_for_each(|child| -> Result<(), Box<Any>> {
+        flex_items.iter_mut().try_for_each(|child| -> Result<(), Box<dyn Any>> {
             let child_style = self.style[&child.node];
 
             // A. If the item has a definite used flex basis, that’s the flex base size.
@@ -364,7 +364,7 @@ impl Stretch {
         // The hypothetical main size is the item’s flex base size clamped according to its
         // used min and max main sizes (and flooring the content box size at zero).
 
-        flex_items.iter_mut().try_for_each(|child| -> Result<(), Box<Any>> {
+        flex_items.iter_mut().try_for_each(|child| -> Result<(), Box<dyn Any>> {
             child.inner_flex_basis = child.flex_basis - child.padding.main(dir) - child.border.main(dir);
 
             // TODO - not really spec abiding but needs to be done somewhere. probably somewhere else though.
@@ -441,7 +441,7 @@ impl Stretch {
         //
         // 9.7. Resolving Flexible Lengths
 
-        flex_lines.iter_mut().try_for_each(|line| -> Result<(), Box<Any>> {
+        flex_lines.iter_mut().try_for_each(|line| -> Result<(), Box<dyn Any>> {
             // 1. Determine the used flex factor. Sum the outer hypothetical main sizes of all
             //    items on the line. If the sum is less than the flex container’s inner main size,
             //    use the flex grow factor for the rest of this algorithm; otherwise, use the
@@ -458,7 +458,7 @@ impl Stretch {
             //    - If using the flex shrink factor: any item that has a flex base size
             //      smaller than its hypothetical main size
 
-            line.items.iter_mut().try_for_each(|child| -> Result<(), Box<Any>> {
+            line.items.iter_mut().try_for_each(|child| -> Result<(), Box<dyn Any>> {
                 // TODO - This is not found by reading the spec. Maybe this can be done in some other place
                 // instead. This was found by trail and error fixing tests to align with webkit output.
                 if node_inner_size.main(dir).is_undefined() && is_row {
@@ -614,7 +614,7 @@ impl Stretch {
                 //    item’s target main size was made smaller by this, it’s a max violation.
                 //    If the item’s target main size was made larger by this, it’s a min violation.
 
-                let total_violation = unfrozen.iter_mut().try_fold(0.0, |acc, child| -> Result<f32, Box<Any>> {
+                let total_violation = unfrozen.iter_mut().try_fold(0.0, |acc, child| -> Result<f32, Box<dyn Any>> {
                     // TODO - not really spec abiding but needs to be done somewhere. probably somewhere else though.
                     // The following logic was developed not from the spec but by trail and error looking into how
                     // webkit handled various scenarios. Can probably be solved better by passing in
@@ -691,7 +691,7 @@ impl Stretch {
         //    used main size and the available space, treating auto as fit-content.
 
         flex_lines.iter_mut().try_for_each(|line| {
-            line.items.iter_mut().try_for_each(|child| -> Result<(), Box<Any>> {
+            line.items.iter_mut().try_for_each(|child| -> Result<(), Box<dyn Any>> {
                 let child_cross =
                     child.size.cross(dir).maybe_max(child.min_size.cross(dir)).maybe_min(child.max_size.cross(dir));
 
@@ -737,7 +737,7 @@ impl Stretch {
 
         if has_baseline_child {
             flex_lines.iter_mut().try_for_each(|line| {
-                line.items.iter_mut().try_for_each(|child| -> Result<(), Box<Any>> {
+                line.items.iter_mut().try_for_each(|child| -> Result<(), Box<dyn Any>> {
                     let result = self.compute_internal(
                         child.node,
                         Size {
@@ -1148,12 +1148,12 @@ impl Stretch {
             let mut lines: Vec<Vec<result::Layout>> = vec![];
             let mut total_offset_cross = padding_border.cross_start(dir);
 
-            let layout_line = |line: &mut FlexLine| -> Result<(), Box<Any>> {
+            let layout_line = |line: &mut FlexLine| -> Result<(), Box<dyn Any>> {
                 let mut children: Vec<result::Layout> = vec![];
                 let mut total_offset_main = padding_border.main_start(dir);
                 let line_offset_cross = line.offset_cross;
 
-                let layout_item = |child: &mut FlexItem| -> Result<(), Box<Any>> {
+                let layout_item = |child: &mut FlexItem| -> Result<(), Box<dyn Any>> {
                     let result = self.compute_internal(
                         child.node,
                         child.target_size.map(|s| s.to_number()),

styles/src/stretch/mod.rs

@@ -15,7 +15,7 @@ use core::any::Any;
 #[derive(Debug)]
 pub enum Error {
     InvalidNode(node::Node),
-    Measure(Box<Any>),
+    Measure(Box<dyn Any>),
 }
 
 impl std::fmt::Display for Error {

styles/src/stretch/node.rs

@@ -16,7 +16,7 @@ use crate::stretch::result::{Cache, Layout};
 use crate::stretch::style::*;
 use crate::stretch::Error;
 
-type MeasureFunc = Box<Fn(Size<Number>) -> Result<Size<f32>, Box<Any>> + Send + Sync + 'static>;
+type MeasureFunc = Box<dyn Fn(Size<Number>) -> Result<Size<f32>, Box<dyn Any>> + Send + Sync + 'static>;
 
 lazy_static! {
     /// Global stretch instance id allocator.

styles/src/styles_parser.rs

@@ -67,7 +67,7 @@ impl<'i> QualifiedRuleParser<'i> for RuleParser {
         let styles = DeclarationListParser::new(input, StyleParser {}).collect::<Vec<_>>();
 
         Ok(Rule {
-            key: key,
+            key,
             styles: styles.into_iter().filter_map(|decl| {
                 if !decl.is_ok() {
                     eprintln!("{:?}", decl);