git.iko.soy/dodrio
on master help sign in
swap
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40 files changed+1213−1017
since splitsnapshots
unifiedsplit
.travis.yml+18−12 Cargo.lock+500−504 Cargo.toml+16−16 README.md+9 benches/benches.rs+9−22 crates/js-api/Cargo.toml+6−7 crates/js-api/src/lib.rs+13−10 examples/counter/Cargo.toml+5−5 examples/counter/src/lib.rs+2−2 examples/game-of-life/Cargo.toml+5−6 examples/game-of-life/src/lib.rs+17−12 examples/hello-world/Cargo.toml+3−3 examples/hello-world/src/lib.rs+2−2 examples/input-form/Cargo.toml+3−3 examples/input-form/src/lib.rs+2−2 examples/js-component/Cargo.toml+3−3 examples/js-component/src/lib.rs+2−2 examples/moire/Cargo.toml+8−9 examples/moire/src/lib.rs+4−4 examples/sierpinski-triangle/Cargo.toml+5−6 examples/sierpinski-triangle/src/lib.rs+4−4 examples/todomvc/Cargo.toml+11−12 examples/todomvc/src/router.rs+22−19 examples/todomvc/src/todo.rs+77−21 examples/todomvc/src/todos.rs+3−3 src/cached.rs+39−7 src/change_list/mod.rs+2−2 src/change_list/traversal.rs+1−1 src/diff.rs+6−6 src/events.rs+2−2 src/lib.rs+3−3 src/render.rs+43−16 src/render_context.rs+1−1 src/vdom.rs+82−77 tests/web/cached.rs+73−65 tests/web/events.rs+56−73 tests/web/js_api.rs+30−37 tests/web/keyed.rs+18−19 tests/web/main.rs+19−17 tests/web/render.rs+89−2
.travis.yml+18−12
@@ -25,24 +25,30 @@ matrix:
2525 - name: "build (beta)"
2626 rust: beta
2727 script: INSTALL=1 ./build.sh
28− - name: "build (nightly)"
29− rust: nightly
30− script: INSTALL=1 ./build.sh
3128 - name: "headless browser tests (firefox)"
3229 rust: stable
3330 addons:
3431 firefox: latest
3532 script: wasm-pack test --firefox --headless -- --features xxx-unstable-internal-use-only
36− - name: "headless browser tests (chrome)"
37− rust: stable
38− addons:
39− chrome: stable
40− script: wasm-pack test --chrome --headless -- --features xxx-unstable-internal-use-only
4133 - name: "native tests"
4234 rust: stable
4335 install: echo "no install"
4436 script: cargo test --all
45− - name: "check native benches"
46− rust: nightly
47− install: echo "no install"
48− script: cargo check --benches --features xxx-unstable-internal-use-only
37+
38+ # TODO: A bug in `rustc` is making `js-sys` broken on nightly:
39+ # https://github.com/rust-lang/rust/issues/69315
40+ # - name: "build (nightly)"
41+ # rust: nightly
42+ # script: INSTALL=1 ./build.sh
43+ # - name: "check native benches"
44+ # rust: nightly
45+ # install: echo "no install"
46+ # script: cargo check --benches --features xxx-unstable-internal-use-only
47+
48+ # TODO: `chromedriver` is complaining about ports or something. Temporarily
49+ # disable in CI until we figure it out.
50+ # - name: "headless browser tests (chrome)"
51+ # rust: stable
52+ # addons:
53+ # chrome: stable
54+ # script: wasm-pack test --chrome --headless -- --features xxx-unstable-internal-use-only
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1027+"checksum wasm-bindgen-test 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "ed5833682054e941db0b7e2b4877b61bbaafd680608e40d268e070d34558b305"
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1029+"checksum wasm-bindgen-webidl 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)" = "3126356474ceb717c8fb5549ae387c9fbf4872818454f4d87708bee997214bb5"
1030+"checksum web-sys 0.3.32 (registry+https://github.com/rust-lang/crates.io-index)" = "98405c0a2e722ed3db341b4c5b70eb9fe0021621f7350bab76df93b09b649bbf"
1031+"checksum weedle 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3bb43f70885151e629e2a19ce9e50bd730fd436cfd4b666894c9ce4de9141164"
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1039−"checksum wincolor 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "561ed901ae465d6185fa7864d63fbd5720d0ef718366c9a4dc83cf6170d7e9ba"
Cargo.toml+16−16
@@ -8,7 +8,7 @@ license = "MPL-2.0"
88name = "dodrio"
99readme = "./README.md"
1010repository = "https://github.com/fitzgen/dodrio"
11−version = "0.1.0"
11+version = "0.2.0"
1212
1313[badges]
1414travis-ci = { repository = "fitzgen/dodrio" }
@@ -42,19 +42,18 @@ xxx-unstable-strace = []
4242xxx-unstable-internal-use-only = []
4343
4444[dependencies]
45−bumpalo = "2.4.2"
46−cfg-if = "0.1.9"
47−futures = "0.1.27"
48−wasm-bindgen = "0.2.42"
49−wasm-bindgen-futures = "0.3.19"
50−js-sys = "0.3.19"
45+bumpalo = "2.6.0"
46+cfg-if = "0.1.10"
5147fxhash = "0.2.1"
52−log = { version = "0.4.6", optional = true }
53−bitflags = "1.0.5"
48+js-sys = "0.3.32"
49+log = { version = "0.4.11", optional = true }
5450longest-increasing-subsequence = "0.1.0"
51+serde = { version = "1.0.114", optional = true }
52+wasm-bindgen = "0.2.55"
53+wasm-bindgen-futures = "0.4.5"
5554
5655[dependencies.web-sys]
57−version = "0.3.19"
56+version = "0.3.32"
5857features = [
5958 "console",
6059 "Document",
@@ -65,13 +64,14 @@ features = [
6564]
6665
6766[dev-dependencies]
68−console_log = "0.1.2"
69−dodrio-js-api = { version = "=0.1.0", path = "./crates/js-api" }
70−log = "0.4.6"
71−wasm-bindgen-test = "0.2.42"
67+console_log = "0.2.0"
68+dodrio-js-api = { version = "=0.2.0", path = "./crates/js-api" }
69+futures = "0.3.5"
70+log = "0.4.11"
71+wasm-bindgen-test = "0.3.5"
7272
7373[dev-dependencies.web-sys]
74−version = "0.3.19"
74+version = "0.3.32"
7575features = [
7676 "Attr",
7777 "EventTarget",
@@ -81,7 +81,7 @@ features = [
8181]
8282
8383[target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies]
84−criterion = "0.2.11"
84+criterion = "0.3.3"
8585
8686[profile.bench]
8787debug = true
README.md+9
@@ -57,6 +57,15 @@ directory](https://github.com/fitzgen/dodrio/tree/master/examples), including:
5757* [`js-component`](https://github.com/fitzgen/dodrio/tree/master/examples/js-component):
5858 Defines a rendering component in JavaScript with the `dodrio-js-api` crate.
5959
60+## Cargo Features
61+
62+* `log` — enable debugging-oriented log messages with the `log` crate's
63+ facade. You still have to initialize a logger for the messages to go anywhere,
64+ such as [`console_log`](https://github.com/iamcodemaker/console_log).
65+
66+* `serde` — enable `serde::{Serialize, Deserialize}` implementations for
67+ `Cached<R>` where `R` is serializable and deserializable.
68+
6069## Design
6170
6271### Bump Allocation
benches/benches.rs+9−22
@@ -13,19 +13,20 @@ use dodrio::{
1313 CachedSet, Node, Render, RenderContext, Vdom,
1414};
1515use std::cell::RefCell;
16+use std::convert::TryInto;
1617
1718/// The simplest thing we can render: `<div/>`.
1819struct Empty;
19−impl Render for Empty {
20− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
20+impl<'a> Render<'a> for Empty {
21+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
2122 div(&cx).finish()
2223 }
2324}
2425
2526/// Render a list that is `self.0` items long, has attributes and listeners.
2627struct SimpleList(usize);
27−impl Render for SimpleList {
28− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
28+impl<'a> Render<'a> for SimpleList {
29+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
2930 let mut children = bumpalo::collections::Vec::with_capacity_in(self.0, cx.bump);
3031 children.extend((0..self.0).map(|_| {
3132 li(&cx)
@@ -73,16 +74,9 @@ fn criterion_benchmark(c: &mut Criterion) {
7374 })
7475 }
7576 },
76− vec![
77− // TODO: Only test one `n` value until
78− // https://github.com/bheisler/criterion.rs/issues/269 is fixed.
79− //
80− // 100,
81− // 1_000,
82− 10_000,
83− ],
77+ vec![100, 1_000, 10_000],
8478 )
85− .throughput(|n| Throughput::Elements(*n as u32)),
79+ .throughput(|n| Throughput::Elements((*n).try_into().unwrap())),
8680 );
8781
8882 c.bench(
@@ -96,14 +90,7 @@ fn criterion_benchmark(c: &mut Criterion) {
9690 black_box(&vdom);
9791 })
9892 },
99− vec![
100− // TODO: Only test one `n` value until
101− // https://github.com/bheisler/criterion.rs/issues/269 is fixed.
102− //
103− // 100,
104− // 1_000,
105− 10_000,
106− ],
93+ vec![100, 1_000, 10_000],
10794 )
10895 .with_function("empty-to-full-list-to-empty", |b, &n| {
10996 b.iter(|| {
@@ -123,7 +110,7 @@ fn criterion_benchmark(c: &mut Criterion) {
123110 black_box(&vdom);
124111 })
125112 })
126− .throughput(|n| Throughput::Elements(*n as u32)),
113+ .throughput(|n| Throughput::Elements((*n).try_into().unwrap())),
127114 );
128115}
129116
crates/js-api/Cargo.toml+6−7
@@ -7,17 +7,16 @@ keywords = ["javascript", "js", "vdom", "virtual-dom"]
77license = "MPL-2.0"
88name = "dodrio-js-api"
99repository = "https://github.com/fitzgen/dodrio"
10−version = "0.1.0"
10+version = "0.2.0"
1111
1212[badges]
1313travis-ci = { repository = "fitzgen/dodrio" }
1414
1515[dependencies]
16−dodrio = { version = "=0.1.0", path = "../.." }
17−wasm-bindgen = "0.2.42"
18−js-sys = "0.3.19"
19−wasm-bindgen-futures = "0.3.19"
20−futures = "0.1.27"
16+dodrio = { version = "=0.2.0", path = "../.." }
17+wasm-bindgen = "0.2.55"
18+js-sys = "0.3.32"
19+wasm-bindgen-futures = "0.4.5"
2120
2221[dev-dependencies]
23−wasm-bindgen-test = "0.2.42"
22+wasm-bindgen-test = "0.3.5"
crates/js-api/src/lib.rs+13−10
@@ -99,8 +99,8 @@ impl GreetingViaJs {
9999
100100/// And finally the `Render` implementation! This adds a `<p>` element and some
101101/// text around whatever the inner JS `Greeting` component renders.
102−impl Render for GreetingViaJs {
103− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
102+impl<'a> Render<'a> for GreetingViaJs {
103+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
104104 use dodrio::builder::*;
105105 p(&cx)
106106 .children([
@@ -116,7 +116,6 @@ impl Render for GreetingViaJs {
116116#![deny(missing_docs, missing_debug_implementations)]
117117
118118use dodrio::{builder, bumpalo, Node, Render, RenderContext};
119−use futures::prelude::*;
120119use js_sys::{Object, Promise, Reflect};
121120use wasm_bindgen::prelude::*;
122121use wasm_bindgen::JsCast;
@@ -185,12 +184,16 @@ impl VdomWeak {
185184 /// Schedule re-rendering of the virtual DOM. A promise is returned that is
186185 /// resolved after the rendering has happened.
187186 pub fn render(&self) -> Promise {
188− wasm_bindgen_futures::future_to_promise(
189− self.inner.render().map(|_| JsValue::null()).map_err(|e| {
187+ let future = self.inner.render();
188+
189+ wasm_bindgen_futures::future_to_promise(async move {
190+ if let Err(e) = future.await {
190191 let msg = e.to_string();
191− js_sys::Error::new(&msg).into()
192− }),
193− )
192+ Err(js_sys::Error::new(&msg).into())
193+ } else {
194+ Ok(JsValue::null())
195+ }
196+ })
194197 }
195198}
196199
@@ -213,8 +216,8 @@ impl JsRender {
213216 }
214217}
215218
216−impl Render for JsRender {
217− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
219+impl<'a> Render<'a> for JsRender {
220+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
218221 create(cx, self.render())
219222 }
220223}
examples/counter/Cargo.toml+5−5
@@ -11,13 +11,13 @@ crate-type = ["cdylib"]
1111
1212[dependencies]
1313console_error_panic_hook = "0.1.6"
14−console_log = "0.1.2"
14+console_log = "0.2.0"
1515dodrio = { path = "../.." }
16−log = "0.4.6"
17−wasm-bindgen = "0.2.42"
16+log = "0.4.11"
17+wasm-bindgen = "0.2.55"
1818
1919[dependencies.web-sys]
20−version = "0.3.19"
20+version = "0.3.32"
2121features = [
2222 "console",
2323 "Document",
@@ -30,4 +30,4 @@ features = [
3030]
3131
3232[dev-dependencies]
33−wasm-bindgen-test = "0.2.42"
33+wasm-bindgen-test = "0.3.5"
examples/counter/src/lib.rs+2−2
@@ -26,8 +26,8 @@ impl Counter {
2626
2727// The `Render` implementation for `Counter`s displays the current count and has
2828// buttons to increment and decrement the count.
29−impl Render for Counter {
30− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
29+impl<'a> Render<'a> for Counter {
30+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
3131 use dodrio::builder::*;
3232
3333 // Stringify the count as a bump-allocated string.
examples/game-of-life/Cargo.toml+5−6
@@ -11,14 +11,13 @@ crate-type = ["cdylib"]
1111
1212[dependencies]
1313dodrio = { path = "../.." }
14−wasm-bindgen = "0.2.42"
14+wasm-bindgen = "0.2.55"
1515console_error_panic_hook = "0.1.6"
16−js-sys = "0.3.19"
17−wasm-bindgen-futures = "0.3.19"
18−futures = "0.1.27"
16+js-sys = "0.3.32"
17+wasm-bindgen-futures = "0.4.5"
1918
2019[dependencies.web-sys]
21−version = "0.3.19"
20+version = "0.3.32"
2221features = [
2322 "Document",
2423 "HtmlElement",
@@ -27,4 +26,4 @@ features = [
2726]
2827
2928[dev-dependencies]
30−wasm-bindgen-test = "0.2.42"
29+wasm-bindgen-test = "0.3.5"
examples/game-of-life/src/lib.rs+17−12
@@ -1,5 +1,4 @@
11use dodrio::{bumpalo, Node, Render, RenderContext, Vdom};
2−use futures::prelude::*;
32use std::cell::RefCell;
43use std::rc::Rc;
54use wasm_bindgen::{prelude::*, JsCast};
@@ -127,8 +126,8 @@ impl Universe {
127126}
128127
129128/// The rendering implementation for our Game of Life.
130−impl Render for Universe {
131− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
129+impl<'a> Render<'a> for Universe {
130+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
132131 use dodrio::builder::*;
133132
134133 let mut rows = bumpalo::collections::Vec::with_capacity_in(self.height as usize, cx.bump);
@@ -178,20 +177,26 @@ pub fn run() {
178177
179178 // Kick off a loop that keeps computing a tick of the universe and then
180179 // re-rendering on every animation frame.
181− let rc: Rc<RefCell<Option<Closure<FnMut()>>>> = Rc::new(RefCell::new(None));
180+ let rc = <Rc<RefCell<Option<Closure<dyn FnMut()>>>>>::default();
182181 let rc2 = rc.clone();
183182 let window2 = window.clone();
184183 let weak = vdom.weak();
185184 let f = Closure::wrap(Box::new(move || {
186185 weak.schedule_render();
187186
188− wasm_bindgen_futures::spawn_local(
189− weak.with_component(|root| {
190− let universe = root.unwrap_mut::<Universe>();
191− universe.tick();
192− })
193− .map_err(|_| wasm_bindgen::throw_str("impossible, we always keep the vdom alive")),
194− );
187+ wasm_bindgen_futures::spawn_local({
188+ let weak = weak.clone();
189+ async move {
190+ let fut = weak.with_component(|root| {
191+ let universe = root.unwrap_mut::<Universe>();
192+ universe.tick();
193+ });
194+
195+ if fut.await.is_err() {
196+ wasm_bindgen::throw_str("impossible, we always keep the vdom alive");
197+ }
198+ }
199+ });
195200
196201 window
197202 .request_animation_frame(
@@ -202,7 +207,7 @@ pub fn run() {
202207 .unchecked_ref::<js_sys::Function>(),
203208 )
204209 .unwrap_throw();
205− }) as Box<FnMut()>);
210+ }) as Box<dyn FnMut()>);
206211 window2
207212 .request_animation_frame(f.as_ref().unchecked_ref::<js_sys::Function>())
208213 .unwrap_throw();
examples/hello-world/Cargo.toml+3−3
@@ -11,11 +11,11 @@ crate-type = ["cdylib"]
1111
1212[dependencies]
1313dodrio = { path = "../.." }
14−wasm-bindgen = "0.2.42"
14+wasm-bindgen = "0.2.55"
1515console_error_panic_hook = "0.1.6"
1616
1717[dependencies.web-sys]
18−version = "0.3.19"
18+version = "0.3.32"
1919features = [
2020 "Document",
2121 "HtmlElement",
@@ -24,4 +24,4 @@ features = [
2424]
2525
2626[dev-dependencies]
27−wasm-bindgen-test = "0.2.42"
27+wasm-bindgen-test = "0.3.5"
examples/hello-world/src/lib.rs+2−2
@@ -10,8 +10,8 @@ struct Hello {
1010
1111// The `Render` implementation describes how to render a `Hello` component into
1212// HTML.
13−impl Render for Hello {
14− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
13+impl<'a> Render<'a> for Hello {
14+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
1515 let msg = bumpalo::format!(in cx.bump, "Hello, {}!", self.who);
1616 let msg = msg.into_bump_str();
1717 p(&cx).children([text(msg)]).finish()
examples/input-form/Cargo.toml+3−3
@@ -11,11 +11,11 @@ crate-type = ["cdylib"]
1111
1212[dependencies]
1313dodrio = { path = "../.." }
14−wasm-bindgen = "0.2.42"
14+wasm-bindgen = "0.2.55"
1515console_error_panic_hook = "0.1.6"
1616
1717[dependencies.web-sys]
18−version = "0.3.19"
18+version = "0.3.32"
1919features = [
2020 "console",
2121 "Document",
@@ -29,4 +29,4 @@ features = [
2929]
3030
3131[dev-dependencies]
32−wasm-bindgen-test = "0.2.42"
32+wasm-bindgen-test = "0.3.5"
examples/input-form/src/lib.rs+2−2
@@ -23,8 +23,8 @@ impl SayHelloTo {
2323
2424// The `Render` implementation has a text `<input>` and a `<div>` that shows a
2525// greeting to the `<input>`'s value.
26−impl Render for SayHelloTo {
27− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
26+impl<'a> Render<'a> for SayHelloTo {
27+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
2828 use dodrio::builder::*;
2929
3030 div(&cx)
examples/js-component/Cargo.toml+3−3
@@ -12,12 +12,12 @@ crate-type = ["cdylib"]
1212[dependencies]
1313dodrio = { path = "../.." }
1414dodrio-js-api = { path = "../../crates/js-api" }
15−wasm-bindgen = "0.2.42"
15+wasm-bindgen = "0.2.55"
1616console_error_panic_hook = "0.1.6"
17−js-sys = "0.3.19"
17+js-sys = "0.3.32"
1818
1919[dependencies.web-sys]
20−version = "0.3.19"
20+version = "0.3.32"
2121features = [
2222 "Document",
2323 "HtmlElement",
examples/js-component/src/lib.rs+2−2
@@ -31,8 +31,8 @@ impl GreetingViaJs {
3131
3232/// Here's the `Render` implementation! This adds a `<p>` element and some text
3333/// around whatever the inner JS `Greeting` component renders.
34−impl Render for GreetingViaJs {
35− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
34+impl<'a> Render<'a> for GreetingViaJs {
35+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
3636 use dodrio::builder::*;
3737 p(&cx)
3838 .children([text("JavaScript says: "), self.js.render(cx)])
examples/moire/Cargo.toml+8−9
@@ -8,20 +8,19 @@ edition = "2018"
88crate-type = ["cdylib"]
99
1010[dependencies]
11−cfg-if = "0.1.9"
11+cfg-if = "0.1.10"
1212dodrio = { path = "../.." }
13−futures = "0.1.27"
14−log = "0.4.6"
15−wasm-bindgen = "0.2.42"
16−wasm-bindgen-futures = "0.3.19"
13+log = "0.4.11"
14+wasm-bindgen = "0.2.55"
15+wasm-bindgen-futures = "0.4.5"
1716
1817# Optional dependencies for logging.
1918console_error_panic_hook = { optional = true, version = "0.1.6" }
20−console_log = { optional = true, version = "0.1.2" }
21−js-sys = "0.3.19"
19+console_log = { optional = true, version = "0.2.0" }
20+js-sys = "0.3.32"
2221
2322[dependencies.web-sys]
24−version = "0.3.19"
23+version = "0.3.32"
2524features = [
2625 "Document",
2726 "Element",
@@ -35,7 +34,7 @@ features = [
3534]
3635
3736[dev-dependencies]
38−wasm-bindgen-test = "0.2.42"
37+wasm-bindgen-test = "0.3.5"
3938
4039[features]
4140logging = [
examples/moire/src/lib.rs+4−4
@@ -27,7 +27,7 @@ pub fn run() {
2727 let vdom = Vdom::new(&scene, component);
2828
2929 // Kick off a loop that keeps re-rendering on every animation frame.
30− let rc: Rc<RefCell<Option<Closure<FnMut()>>>> = Rc::new(RefCell::new(None));
30+ let rc = <Rc<RefCell<Option<Closure<dyn FnMut()>>>>>::default();
3131 let rc2 = rc.clone();
3232 let window2 = window.clone();
3333 let weak = vdom.weak();
@@ -42,7 +42,7 @@ pub fn run() {
4242 .unchecked_ref::<js_sys::Function>(),
4343 )
4444 .unwrap_throw();
45− }) as Box<FnMut()>);
45+ }) as Box<dyn FnMut()>);
4646 window2
4747 .request_animation_frame(f.as_ref().unchecked_ref::<js_sys::Function>())
4848 .unwrap_throw();
@@ -104,8 +104,8 @@ impl Moire {
104104 }
105105}
106106
107−impl Render for Moire {
108− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
107+impl<'a> Render<'a> for Moire {
108+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
109109 use dodrio::builder::*;
110110
111111 let elapsed = web_sys::window()
examples/sierpinski-triangle/Cargo.toml+5−6
@@ -9,14 +9,13 @@ crate-type = ["cdylib"]
99
1010[dependencies]
1111dodrio = { path = "../.." }
12−wasm-bindgen = "0.2.42"
12+wasm-bindgen = "0.2.55"
1313console_error_panic_hook = "0.1.6"
14−js-sys = "0.3.19"
15−wasm-bindgen-futures = "0.3.19"
16−futures = "0.1.27"
14+js-sys = "0.3.32"
15+wasm-bindgen-futures = "0.4.5"
1716
1817[dependencies.web-sys]
19−version = "0.3.19"
18+version = "0.3.32"
2019features = [
2120 "Document",
2221 "HtmlElement",
@@ -26,4 +25,4 @@ features = [
2625]
2726
2827[dev-dependencies]
29−wasm-bindgen-test = "0.2.42"
28+wasm-bindgen-test = "0.3.5"
examples/sierpinski-triangle/src/lib.rs+4−4
@@ -85,8 +85,8 @@ impl Container {
8585 }
8686}
8787
88−impl Render for Container {
89− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
88+impl<'a> Render<'a> for Container {
89+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
9090 use dodrio::builder::div;
9191
9292 let elapsed = web_sys::window()
@@ -111,7 +111,7 @@ impl Render for Container {
111111
112112// Kick off a loop that keeps re-rendering on every animation frame.
113113fn animate(window: Window, vdom: Vdom) {
114− let rc: Rc<RefCell<Option<Closure<FnMut()>>>> = Rc::new(RefCell::new(None));
114+ let rc = <Rc<RefCell<Option<Closure<dyn FnMut()>>>>>::default();
115115 let rc2 = rc.clone();
116116 let window2 = window.clone();
117117 let weak = vdom.weak();
@@ -126,7 +126,7 @@ fn animate(window: Window, vdom: Vdom) {
126126 .unchecked_ref::<js_sys::Function>(),
127127 )
128128 .unwrap_throw();
129− }) as Box<FnMut()>);
129+ }) as Box<dyn FnMut()>);
130130 window2
131131 .request_animation_frame(f.as_ref().unchecked_ref::<js_sys::Function>())
132132 .unwrap_throw();
examples/todomvc/Cargo.toml+11−12
@@ -5,22 +5,21 @@ name = "dodrio-todomvc"
55version = "0.1.0"
66
77[dependencies]
8−cfg-if = "0.1.9"
9−dodrio = { path = "../.." }
10−futures = "0.1.27"
11−js-sys = "0.3.19"
12−serde = { features = ["derive"], version = "1.0.91" }
13−serde_json = "1.0.39"
14−wasm-bindgen = "0.2.42"
15−wasm-bindgen-futures = "0.3.19"
8+cfg-if = "0.1.10"
9+dodrio = { path = "../..", features = ["serde"] }
10+js-sys = "0.3.32"
11+serde = { features = ["derive"], version = "1.0.114" }
12+serde_json = "1.0.57"
13+wasm-bindgen = "0.2.55"
14+wasm-bindgen-futures = "0.4.5"
1615
1716# Optional dependencies for logging.
1817console_error_panic_hook = { optional = true, version = "0.1.6" }
19−console_log = { optional = true, version = "0.1.2" }
20−log = { optional = true, version = "0.4.6" }
18+console_log = { optional = true, version = "0.2.0" }
19+log = { optional = true, version = "0.4.11" }
2120
2221[dependencies.web-sys]
23−version = "0.3.19"
22+version = "0.3.32"
2423features = [
2524 "Document",
2625 "Event",
@@ -35,7 +34,7 @@ features = [
3534]
3635
3736[dev-dependencies]
38−wasm-bindgen-test = "0.2.42"
37+wasm-bindgen-test = "0.3.5"
3938
4039[features]
4140logging = [
examples/todomvc/src/router.rs+22−19
@@ -4,7 +4,6 @@ use crate::todos::Todos;
44use crate::utils;
55use crate::visibility::Visibility;
66use dodrio::VdomWeak;
7−use futures::prelude::*;
87use std::str::FromStr;
98use wasm_bindgen::{prelude::*, JsCast};
109
@@ -29,23 +28,27 @@ pub fn start(vdom: VdomWeak) {
2928 v
3029 });
3130
32− wasm_bindgen_futures::spawn_local(
33− vdom.with_component({
34− let vdom = vdom.clone();
35− move |root| {
36− let todos = root.unwrap_mut::<Todos>();
37− // If the todos' visibility already matches the event's
38− // visibility, then there is nothing to do (ha). If they
39− // don't match, then we need to update the todos' visibility
40− // and re-render.
41− if todos.visibility() != new_vis {
42− todos.set_visibility(new_vis);
43− vdom.schedule_render();
44− }
45− }
46− })
47− .map_err(|_| ()),
48− );
31+ wasm_bindgen_futures::spawn_local({
32+ let vdom = vdom.clone();
33+ async move {
34+ let _ = vdom
35+ .with_component({
36+ let vdom = vdom.clone();
37+ move |root| {
38+ let todos = root.unwrap_mut::<Todos>();
39+ // If the todos' visibility already matches the event's
40+ // visibility, then there is nothing to do (ha). If they
41+ // don't match, then we need to update the todos' visibility
42+ // and re-render.
43+ if todos.visibility() != new_vis {
44+ todos.set_visibility(new_vis);
45+ vdom.schedule_render();
46+ }
47+ }
48+ })
49+ .await;
50+ }
51+ });
4952 };
5053
5154 // Call it once to handle the initial `#` fragment.
@@ -56,7 +59,7 @@ pub fn start(vdom: VdomWeak) {
5659 // Note that if we ever intended to unmount our todos app, we would want to
5760 // provide a method for removing this router's event listener and cleaning
5861 // up after ourselves.
59− let on_hash_change = Closure::wrap(Box::new(on_hash_change) as Box<FnMut()>);
62+ let on_hash_change = Closure::wrap(Box::new(on_hash_change) as Box<dyn FnMut()>);
6063 let window = utils::window();
6164 window
6265 .add_event_listener_with_callback("hashchange", on_hash_change.as_ref().unchecked_ref())
examples/todomvc/src/todo.rs+77−21
@@ -1,14 +1,19 @@
11//! Type definition and `dodrio::Render` implementation for a single todo item.
22
33use crate::keys;
4−use dodrio::{Node, Render, RenderContext, RootRender, VdomWeak};
4+use dodrio::{Cached, Node, Render, RenderContext, RootRender, VdomWeak};
55use serde::{Deserialize, Serialize};
66use std::marker::PhantomData;
77use wasm_bindgen::{prelude::*, JsCast};
88
99/// A single todo item.
10−#[derive(Serialize, Deserialize)]
10+#[derive(Default)]
1111pub struct Todo<C> {
12+ inner: Cached<TodoInner<C>>,
13+}
14+
15+#[derive(Serialize, Deserialize)]
16+struct TodoInner<C> {
1217 id: usize,
1318 title: String,
1419 completed: bool,
@@ -48,68 +53,87 @@ impl<C> Todo<C> {
4853 let completed = false;
4954 let edits = None;
5055 Todo {
51− id,
52− title,
53− completed,
54− edits,
55− _controller: PhantomData,
56+ inner: Cached::new(TodoInner {
57+ id,
58+ title,
59+ completed,
60+ edits,
61+ _controller: PhantomData,
62+ }),
5663 }
5764 }
5865
5966 /// Set this todo item's id.
6067 pub fn set_id(&mut self, id: usize) {
61− self.id = id;
68+ if id != self.inner.id {
69+ Cached::invalidate(&self.inner);
70+ }
71+ self.inner.id = id;
6272 }
6373
6474 /// Is this `Todo` complete?
6575 pub fn is_complete(&self) -> bool {
66− self.completed
76+ self.inner.completed
6777 }
6878
6979 /// Mark the `Todo` as complete or not.
7080 pub fn set_complete(&mut self, to: bool) {
71− self.completed = to;
81+ if to != self.inner.completed {
82+ Cached::invalidate(&self.inner);
83+ }
84+ self.inner.completed = to;
7285 }
7386
7487 /// Get this todo's title.
7588 pub fn title(&self) -> &str {
76− &self.title
89+ &self.inner.title
7790 }
7891
7992 /// Set this todo item's title.
8093 pub fn set_title<S: Into<String>>(&mut self, title: S) {
81− self.title = title.into();
94+ let title = title.into();
95+ if title != self.inner.title {
96+ Cached::invalidate(&self.inner);
97+ }
98+ self.inner.title = title;
8299 }
83100
84101 /// Set the edits for this todo.
85102 pub fn set_edits<S: Into<String>>(&mut self, edits: Option<S>) {
86− self.edits = edits.map(Into::into);
103+ let edits = edits.map(Into::into);
104+ if edits != self.inner.edits {
105+ Cached::invalidate(&self.inner);
106+ }
107+ self.inner.edits = edits;
87108 }
88109
89110 /// Take this todo's edits, leaving `None` in their place.
90111 pub fn take_edits(&mut self) -> Option<String> {
91− self.edits.take()
112+ if self.inner.edits.is_some() {
113+ Cached::invalidate(&self.inner);
114+ }
115+ self.inner.edits.take()
92116 }
93117}
94118
95−impl<C: TodoActions> Render for Todo<C> {
96− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
119+impl<'a, C: TodoActions> Render<'a> for Todo<C> {
120+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
97121 use dodrio::{
98122 builder::*,
99123 bumpalo::{self, collections::String},
100124 };
101125
102− let id = self.id;
103− let title = self.edits.as_ref().unwrap_or(&self.title);
126+ let id = self.inner.id;
127+ let title = self.inner.edits.as_ref().unwrap_or(&self.inner.title);
104128 let title = bumpalo::format!(in cx.bump, "{}", title).into_bump_str();
105129
106130 li(&cx)
107131 .attr("class", {
108132 let mut class = String::new_in(cx.bump);
109− if self.completed {
133+ if self.inner.completed {
110134 class.push_str("completed ");
111135 }
112− if self.edits.is_some() {
136+ if self.inner.edits.is_some() {
113137 class.push_str("editing");
114138 }
115139 class.into_bump_str()
@@ -121,7 +145,7 @@ impl<C: TodoActions> Render for Todo<C> {
121145 input(&cx)
122146 .attr("class", "toggle")
123147 .attr("type", "checkbox")
124− .bool_attr("checked", self.completed)
148+ .bool_attr("checked", self.inner.completed)
125149 .on("click", move |root, vdom, _event| {
126150 C::toggle_completed(root, vdom, id);
127151 })
@@ -171,3 +195,35 @@ impl<C: TodoActions> Render for Todo<C> {
171195 .finish()
172196 }
173197}
198+
199+impl<C> Default for TodoInner<C> {
200+ fn default() -> Self {
201+ TodoInner {
202+ id: Default::default(),
203+ title: Default::default(),
204+ completed: Default::default(),
205+ edits: Default::default(),
206+ _controller: PhantomData,
207+ }
208+ }
209+}
210+
211+impl<C> serde::Serialize for Todo<C> {
212+ fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
213+ where
214+ S: serde::Serializer,
215+ {
216+ self.inner.serialize(serializer)
217+ }
218+}
219+
220+impl<'de, C> Deserialize<'de> for Todo<C> {
221+ fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
222+ where
223+ D: serde::Deserializer<'de>,
224+ {
225+ Ok(Todo {
226+ inner: <Cached<TodoInner<C>>>::deserialize(deserializer)?,
227+ })
228+ }
229+}
examples/todomvc/src/todos.rs+3−3
@@ -28,7 +28,7 @@ pub struct Todos<C = Controller> {
2828}
2929
3030/// Actions for `Todos` that can be triggered by UI interactions.
31−pub trait TodosActions: TodoActions {
31+pub trait TodosActions: 'static + TodoActions {
3232 /// Toggle the completion state of all todo items.
3333 fn toggle_all(root: &mut dyn RootRender, vdom: VdomWeak);
3434
@@ -289,8 +289,8 @@ impl<C: TodosActions> Todos<C> {
289289 }
290290}
291291
292−impl<C: TodosActions> Render for Todos<C> {
293− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
292+impl<'a, C: TodosActions> Render<'a> for Todos<C> {
293+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
294294 use dodrio::builder::*;
295295
296296 div(&cx)
src/cached.rs+39−7
@@ -9,6 +9,12 @@ use std::ops::{Deref, DerefMut};
99
1010/// A renderable that supports caching for when rendering is expensive but can
1111/// generate the same DOM tree.
12+///
13+/// # Example
14+///
15+/// The [TodoMVC
16+/// example](https://github.com/fitzgen/dodrio/blob/master/examples/todomvc/src/todo.rs)
17+/// caches individual todo items.
1218#[derive(Clone, Debug, Default)]
1319pub struct Cached<R>
1420where
@@ -39,8 +45,8 @@ where
3945 /// count: u32,
4046 /// }
4147 ///
42− /// impl Render for Counter {
43− /// fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
48+ /// impl<'a> Render<'a> for Counter {
49+ /// fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
4450 /// // ...
4551 /// # unimplemented!()
4652 /// }
@@ -79,8 +85,8 @@ where
7985 /// who: String
8086 /// }
8187 ///
82− /// impl Render for Hello {
83− /// fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
88+ /// impl<'a> Render<'a> for Hello {
89+ /// fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
8490 /// use dodrio::builder::*;
8591 /// let greeting = bumpalo::format!(in cx.bump, "Hello, {}!", self.who);
8692 /// p(&cx)
@@ -137,11 +143,11 @@ where
137143 }
138144}
139145
140−impl<R> Render for Cached<R>
146+impl<'a, R> Render<'a> for Cached<R>
141147where
142− R: 'static + Default + Render,
148+ R: 'static + Default + for<'b> Render<'b>,
143149{
144− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
150+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
145151 let template = cx.template::<R>();
146152 let cached = match self.cached.get() {
147153 // This does-the-cache-contain-this-id check is necessary because
@@ -195,3 +201,29 @@ where
195201 cached.into()
196202 }
197203}
204+
205+#[cfg(feature = "serde")]
206+impl<R> serde::Serialize for Cached<R>
207+where
208+ R: Default + serde::Serialize,
209+{
210+ fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
211+ where
212+ S: serde::Serializer,
213+ {
214+ self.inner.serialize(serializer)
215+ }
216+}
217+
218+#[cfg(feature = "serde")]
219+impl<'de, R> serde::Deserialize<'de> for Cached<R>
220+where
221+ R: Default + serde::Deserialize<'de>,
222+{
223+ fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
224+ where
225+ D: serde::Deserializer<'de>,
226+ {
227+ R::deserialize(deserializer).map(Cached::new)
228+ }
229+}
src/change_list/mod.rs+2−2
@@ -233,9 +233,9 @@ impl ChangeListBuilder<'_> {
233233 self.state.emitter.replace_with();
234234 }
235235
236− pub fn set_attribute(&mut self, name: &str, value: &str) {
236+ pub fn set_attribute(&mut self, name: &str, value: &str, is_namespaced: bool) {
237237 debug_assert!(self.traversal_is_committed());
238− if name == "class" {
238+ if name == "class" && !is_namespaced {
239239 let class_id = self.ensure_string(value);
240240 debug!("emit: set_class({:?})", value);
241241 self.state.emitter.set_class(class_id.into());
src/change_list/traversal.rs+1−1
@@ -167,7 +167,7 @@ mod tests {
167167
168168 #[test]
169169 fn test_traversal() {
170− fn t<F>(f: F) -> Box<FnMut(&mut Traversal)>
170+ fn t<F>(f: F) -> Box<dyn FnMut(&mut Traversal)>
171171 where
172172 F: 'static + FnMut(&mut Traversal),
173173 {
src/diff.rs+6−6
@@ -78,7 +78,7 @@ pub(crate) fn diff(
7878 return;
7979 }
8080 diff_listeners(change_list, registry, old_listeners, new_listeners);
81− diff_attributes(change_list, old_attributes, new_attributes);
81+ diff_attributes(change_list, old_attributes, new_attributes, new_namespace.is_some());
8282 diff_children(
8383 cached_set,
8484 change_list,
@@ -204,26 +204,26 @@ fn diff_listeners(
204204// [... node]
205205//
206206// The change list stack is left unchanged.
207−fn diff_attributes(change_list: &mut ChangeListBuilder, old: &[Attribute], new: &[Attribute]) {
207+fn diff_attributes(change_list: &mut ChangeListBuilder, old: &[Attribute], new: &[Attribute], is_namespaced: bool) {
208208 // Do O(n^2) passes to add/update and remove attributes, since
209209 // there are almost always very few attributes.
210210 'outer: for new_attr in new {
211211 if new_attr.is_volatile() {
212212 change_list.commit_traversal();
213− change_list.set_attribute(new_attr.name, new_attr.value);
213+ change_list.set_attribute(new_attr.name, new_attr.value, is_namespaced);
214214 } else {
215215 for old_attr in old {
216216 if old_attr.name == new_attr.name {
217217 if old_attr.value != new_attr.value {
218218 change_list.commit_traversal();
219− change_list.set_attribute(new_attr.name, new_attr.value);
219+ change_list.set_attribute(new_attr.name, new_attr.value, is_namespaced);
220220 }
221221 continue 'outer;
222222 }
223223 }
224224
225225 change_list.commit_traversal();
226− change_list.set_attribute(new_attr.name, new_attr.value);
226+ change_list.set_attribute(new_attr.name, new_attr.value, is_namespaced);
227227 }
228228 }
229229
@@ -953,7 +953,7 @@ fn create(
953953 }
954954
955955 for attr in attributes {
956− change_list.set_attribute(&attr.name, &attr.value);
956+ change_list.set_attribute(&attr.name, &attr.value, namespace.is_some());
957957 }
958958
959959 // Fast path: if there is a single text child, it is faster to
src/events.rs+2−2
@@ -86,7 +86,7 @@ cfg_if::cfg_if! {
8686 callback(component, vdom_weak, event);
8787 }
8888 }
89− }) as Box<Fn(web_sys::Event, u32, u32)>);
89+ }) as Box<dyn Fn(web_sys::Event, u32, u32)>);
9090
9191 (registry, closure)
9292 }
@@ -99,7 +99,7 @@ cfg_if::cfg_if! {
9999
100100 pub(crate) fn remove_subtree(&mut self, node: &Node) {
101101 match node.kind {
102− NodeKind::Cached(_) | NodeKind::Text(_) => return,
102+ NodeKind::Cached(_) | NodeKind::Text(_) => {},
103103 NodeKind::Element(&ElementNode {listeners, children, ..}) => {
104104 for l in listeners {
105105 self.remove(l);
src/lib.rs+3−3
@@ -18,8 +18,8 @@
1818//! }
1919//! }
2020//!
21−//! impl<'who> Render for Hello<'who> {
22−//! fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
21+//! impl<'a, 'who> Render<'a> for Hello<'who> {
22+//! fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
2323//! use dodrio::builder::*;
2424//!
2525//! let id = bumpalo::format!(in cx.bump, "hello-{}", self.who);
@@ -123,7 +123,7 @@ cfg_if::cfg_if! {
123123 /// An element node in the physical DOM.
124124 pub type Element = web_sys::Element;
125125
126− pub(crate) type EventsTrampoline = wasm_bindgen::closure::Closure<Fn(web_sys::Event, u32, u32)>;
126+ pub(crate) type EventsTrampoline = wasm_bindgen::closure::Closure<dyn Fn(web_sys::Event, u32, u32)>;
127127 }
128128}
129129
src/render.rs+43−16
@@ -21,8 +21,8 @@ use wasm_bindgen::UnwrapThrowExt;
2121///
2222/// pub struct MyComponent;
2323///
24−/// impl Render for MyComponent {
25−/// fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
24+/// impl<'a> Render<'a> for MyComponent {
25+/// fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
2626/// use dodrio::builder::*;
2727///
2828/// p(&cx)
@@ -35,26 +35,26 @@ use wasm_bindgen::UnwrapThrowExt;
3535/// }
3636/// }
3737/// ```
38−pub trait Render {
38+pub trait Render<'a> {
3939 /// Render `self` as a virtual DOM. Use the given context's `Bump` for
4040 /// temporary allocations.
41− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a>;
41+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a>;
4242}
4343
44−impl<'r, R> Render for &'r R
44+impl<'a, 'r, R> Render<'a> for &'r R
4545where
46− R: Render,
46+ R: Render<'a>,
4747{
48− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
48+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
4949 (**self).render(cx)
5050 }
5151}
5252
53−impl<R> Render for Rc<R>
53+impl<'a, R> Render<'a> for Rc<R>
5454where
55− R: Render,
55+ R: Render<'a>,
5656{
57− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
57+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
5858 (**self).render(cx)
5959 }
6060}
@@ -69,24 +69,24 @@ where
6969/// You do not need to implement this trait by hand: there is a blanket
7070/// implementation for all `Render` types that fulfill the `RootRender`
7171/// requirements.
72−pub trait RootRender: Any + Render {
72+pub trait RootRender: Any + for<'a> Render<'a> {
7373 /// Get this `&RootRender` trait object as an `&Any` trait object reference.
74− fn as_any(&self) -> &Any;
74+ fn as_any(&self) -> &dyn Any;
7575
7676 /// Get this `&mut RootRender` trait object as an `&mut Any` trait object
7777 /// reference.
78− fn as_any_mut(&mut self) -> &mut Any;
78+ fn as_any_mut(&mut self) -> &mut dyn Any;
7979}
8080
8181impl<T> RootRender for T
8282where
83− T: Any + Render,
83+ T: Any + for<'a> Render<'a>,
8484{
85− fn as_any(&self) -> &Any {
85+ fn as_any(&self) -> &dyn Any {
8686 self
8787 }
8888
89− fn as_any_mut(&mut self) -> &mut Any {
89+ fn as_any_mut(&mut self) -> &mut dyn Any {
9090 self
9191 }
9292}
@@ -138,4 +138,31 @@ mod tests {
138138 #[allow(dead_code)]
139139 fn takes_dyn_render(_: &dyn super::RootRender) {}
140140 }
141+
142+ #[test]
143+ fn render_bump_scoped_child() {
144+ use crate::{builder::*, bumpalo::collections::String, Node, Render, RenderContext};
145+
146+ struct Child<'a> {
147+ name: &'a str,
148+ }
149+
150+ impl<'a> Render<'a> for Child<'a> {
151+ fn render(&self, _cx: &mut RenderContext<'a>) -> Node<'a> {
152+ text(self.name)
153+ }
154+ }
155+
156+ struct Parent;
157+
158+ impl<'a> Render<'a> for Parent {
159+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
160+ let child_name = String::from_str_in("child", cx.bump).into_bump_str();
161+
162+ div(&cx)
163+ .children([Child { name: child_name }.render(cx)])
164+ .finish()
165+ }
166+ }
167+ }
141168}
src/render_context.rs+1−1
@@ -69,7 +69,7 @@ impl<'a> RenderContext<'a> {
6969 /// Get or create the cached template for `Cached<R>`.
7070 pub(crate) fn template<R>(&mut self) -> Option<CacheId>
7171 where
72− R: 'static + Default + Render,
72+ R: 'static + Default + for<'b> Render<'b>,
7373 {
7474 let template_id = Cached::<R>::template_id();
7575 if let Some(cache_id) = self.templates.get(&template_id).cloned() {
src/vdom.rs+82−77
@@ -6,11 +6,11 @@ use crate::events::EventsRegistry;
66use crate::node::{Node, NodeKey};
77use crate::RenderContext;
88use bumpalo::Bump;
9−use futures::future::Future;
109use fxhash::FxHashMap;
1110use std::cell::Cell;
1211use std::cell::RefCell;
1312use std::fmt;
13+use std::future::Future;
1414use std::mem;
1515use std::mem::ManuallyDrop;
1616use std::rc::{Rc, Weak};
@@ -55,7 +55,7 @@ pub(crate) struct VdomInnerExclusive {
5555 // Always `Some` except just before we drop. Just an option so that
5656 // `unmount` can take the component out but we can still have a Drop
5757 // implementation.
58− component: Option<Box<RootRender>>,
58+ component: Option<Box<dyn RootRender>>,
5959
6060 dom_buffers: Option<[Bump; 2]>,
6161 change_list: ManuallyDrop<ChangeListPersistentState>,
@@ -158,12 +158,15 @@ impl Vdom {
158158 where
159159 R: RootRender,
160160 {
161− Self::with_boxed_root_render(container, Box::new(component) as Box<RootRender>)
161+ Self::with_boxed_root_render(container, Box::new(component) as Box<dyn RootRender>)
162162 }
163163
164164 /// Construct a `Vdom` with the already-boxed-as-a-trait-object root
165165 /// rendering component.
166− pub fn with_boxed_root_render(container: &crate::Element, component: Box<RootRender>) -> Vdom {
166+ pub fn with_boxed_root_render(
167+ container: &crate::Element,
168+ component: Box<dyn RootRender>,
169+ ) -> Vdom {
167170 crate::strace::init_strace();
168171
169172 let dom_buffers = [Bump::new(), Bump::new()];
@@ -217,7 +220,7 @@ impl Vdom {
217220 R: RootRender,
218221 {
219222 let mut exclusive = self.inner.exclusive.borrow_mut();
220− let component = Box::new(component) as Box<RootRender>;
223+ let component = Box::new(component) as Box<dyn RootRender>;
221224 exclusive.component = Some(component);
222225 exclusive.render();
223226 }
@@ -237,7 +240,7 @@ impl Vdom {
237240 /// Unmount this virtual DOM, unregister its event listeners, and return its
238241 /// root render component.
239242 #[inline]
240− pub fn unmount(self) -> Box<RootRender> {
243+ pub fn unmount(self) -> Box<dyn RootRender> {
241244 Rc::try_unwrap(self.inner.clone())
242245 .map_err(|_| ())
243246 .unwrap_throw()
@@ -323,7 +326,7 @@ impl VdomInnerExclusive {
323326 }
324327}
325328
326−fn request_animation_frame(f: &Closure<FnMut()>) {
329+fn request_animation_frame(f: &Closure<dyn FnMut()>) {
327330 web_sys::window()
328331 .expect_throw("should have a window")
329332 .request_animation_frame(f.as_ref().unchecked_ref())
@@ -340,7 +343,7 @@ where
340343 let f = Closure::wrap(Box::new(move || {
341344 *g.borrow_mut() = None;
342345 f();
343− }) as Box<FnMut()>);
346+ }) as Box<dyn FnMut()>);
344347 request_animation_frame(&f);
345348
346349 *h.borrow_mut() = Some(f);
@@ -371,25 +374,23 @@ impl VdomWeak {
371374 /// Replace the root rendering component with the new `root`.
372375 ///
373376 /// Returns a future that resolves to the *old* root component.
374− pub fn set_component(
377+ pub async fn set_component(
375378 self,
376379 root: Box<dyn RootRender>,
377− ) -> impl Future<Item = Box<dyn RootRender + 'static>, Error = VdomDroppedError> {
378− futures::future::ok(self.inner.upgrade())
379− .and_then(|inner| inner.ok_or(()))
380− .map_err(|_| VdomDroppedError {})
381− .and_then(|inner| {
382− let promise = js_sys::Promise::resolve(&JsValue::null());
383− JsFuture::from(promise)
384− .map_err(|_| VdomDroppedError {})
385− .and_then(move |_| {
386− let old = {
387− let mut exclusive = inner.exclusive.borrow_mut();
388− mem::replace(&mut *exclusive.component.as_mut().unwrap_throw(), root)
389− };
390− VdomWeak::new(&inner).render().map(|_| old)
391− })
392− })
380+ ) -> Result<Box<dyn RootRender + 'static>, VdomDroppedError> {
381+ let inner = self.inner.upgrade().ok_or(VdomDroppedError {})?;
382+
383+ // Wait for a new tick of the micro-task queue
384+ let _ = JsFuture::from(js_sys::Promise::resolve(&JsValue::null())).await;
385+
386+ let old = {
387+ let mut exclusive = inner.exclusive.borrow_mut();
388+ mem::replace(&mut *exclusive.component.as_mut().unwrap_throw(), root)
389+ };
390+
391+ VdomWeak::new(&inner).render().await?;
392+
393+ Ok(old)
393394 }
394395
395396 /// Execute `f` with a reference to this virtual DOM's root rendering
@@ -397,24 +398,18 @@ impl VdomWeak {
397398 ///
398399 /// To ensure exclusive access to the root rendering component, the
399400 /// invocation takes place on a new tick of the micro-task queue.
400− pub fn with_component<F, T>(&self, f: F) -> impl Future<Item = T, Error = VdomDroppedError>
401+ pub async fn with_component<F, T>(&self, f: F) -> Result<T, VdomDroppedError>
401402 where
402403 F: 'static + FnOnce(&mut dyn RootRender) -> T,
403404 {
404− futures::future::ok(self.inner.upgrade())
405− .and_then(|inner| inner.ok_or(()))
406− .map_err(|_| VdomDroppedError {})
407− .and_then(|inner| {
408− let mut f = Some(f);
409− let promise = js_sys::Promise::resolve(&JsValue::null());
410− JsFuture::from(promise)
411− .map_err(|_| VdomDroppedError {})
412− .map(move |_| {
413− let f = f.take().unwrap_throw();
414− let mut exclusive = inner.exclusive.borrow_mut();
415− f(exclusive.component_raw_mut())
416− })
417− })
405+ let inner = self.inner.upgrade().ok_or(VdomDroppedError {})?;
406+
407+ // Wait for a new tick of the micro-task queue
408+ let _ = JsFuture::from(js_sys::Promise::resolve(&JsValue::null())).await;
409+
410+ let mut exclusive = inner.exclusive.borrow_mut();
411+
412+ Ok(f(exclusive.component_raw_mut()))
418413 }
419414
420415 /// Schedule a render to occur during the next animation frame.
@@ -423,7 +418,12 @@ impl VdomWeak {
423418 /// `render` instead.
424419 pub fn schedule_render(&self) {
425420 debug!("VdomWeak::schedule_render");
426− wasm_bindgen_futures::spawn_local(self.render().map_err(|_| ()));
421+
422+ let future = self.render();
423+
424+ wasm_bindgen_futures::spawn_local(async move {
425+ let _ = future.await;
426+ });
427427 }
428428
429429 /// Schedule a render to occur during the next animation frame and return a
@@ -431,41 +431,46 @@ impl VdomWeak {
431431 ///
432432 /// If you don't want to do more things after the render completes, then use
433433 /// `schedule_render` instead of `render`.
434− pub fn render(&self) -> impl Future<Item = (), Error = VdomDroppedError> {
435− futures::future::ok(self.inner.upgrade())
436− .and_then(|inner| inner.ok_or(()))
437− .map_err(|_| VdomDroppedError {})
438− .and_then(|inner| {
439− let promise = inner.shared.render_scheduled.take().unwrap_or_else(|| {
440− js_sys::Promise::new(&mut |resolve, reject| {
441− let vdom = VdomWeak {
442− inner: Rc::downgrade(&inner),
443− };
444− with_animation_frame(move || match vdom.inner.upgrade() {
445− None => {
446− warn!("VdomWeak::render: vdom unmounted before we could render");
447− let r = reject.call0(&JsValue::null());
448− debug_assert!(r.is_ok());
449− }
450− Some(inner) => {
451− let mut exclusive = inner.exclusive.borrow_mut();
452− exclusive.render();
453−
454− // We did the render, so take the promise away
455− // and let future `render` calls request new
456− // animation frames.
457− let _ = inner.shared.render_scheduled.take();
458−
459− let r = resolve.call0(&JsValue::null());
460− debug_assert!(r.is_ok());
461− }
462− });
463− })
464− });
465− inner.shared.render_scheduled.set(Some(promise.clone()));
466− JsFuture::from(promise)
467− .map(|_| ())
468− .map_err(|_| VdomDroppedError {})
469− })
434+ pub fn render(&self) -> impl Future<Output = Result<(), VdomDroppedError>> {
435+ let inner = self.inner.upgrade();
436+
437+ async move {
438+ let inner = inner.ok_or(VdomDroppedError {})?;
439+
440+ let promise = inner.shared.render_scheduled.take().unwrap_or_else(|| {
441+ js_sys::Promise::new(&mut |resolve, reject| {
442+ let vdom = VdomWeak {
443+ inner: Rc::downgrade(&inner),
444+ };
445+
446+ with_animation_frame(move || match vdom.inner.upgrade() {
447+ None => {
448+ warn!("VdomWeak::render: vdom unmounted before we could render");
449+ let r = reject.call0(&JsValue::null());
450+ debug_assert!(r.is_ok());
451+ }
452+ Some(inner) => {
453+ let mut exclusive = inner.exclusive.borrow_mut();
454+ exclusive.render();
455+
456+ // We did the render, so take the promise away
457+ // and let future `render` calls request new
458+ // animation frames.
459+ let _ = inner.shared.render_scheduled.take();
460+
461+ let r = resolve.call0(&JsValue::null());
462+ debug_assert!(r.is_ok());
463+ }
464+ });
465+ })
466+ });
467+
468+ inner.shared.render_scheduled.set(Some(promise.clone()));
469+
470+ JsFuture::from(promise)
471+ .await
472+ .map(drop)
473+ .map_err(|_| VdomDroppedError {})
474+ }
470475 }
471476}
tests/web/cached.rs+73−65
@@ -1,6 +1,5 @@
11use super::{assert_rendered, before_after, create_element, RenderFn};
22use dodrio::{builder::*, bumpalo, Cached, Node, Render, RenderContext, RootRender, Vdom};
3−use futures::prelude::*;
43use std::cell::Cell;
54use std::rc::Rc;
65use wasm_bindgen::prelude::*;
@@ -19,8 +18,8 @@ impl CountRenders {
1918 }
2019}
2120
22−impl Render for CountRenders {
23− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
21+impl<'a> Render<'a> for CountRenders {
22+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
2423 let count = self.render_count.get() + 1;
2524 self.render_count.set(count);
2625
@@ -29,8 +28,8 @@ impl Render for CountRenders {
2928 }
3029}
3130
32−#[wasm_bindgen_test(async)]
33−fn uses_cached_render() -> impl Future<Item = (), Error = JsValue> {
31+#[wasm_bindgen_test]
32+async fn uses_cached_render() {
3433 use dodrio::builder::*;
3534
3635 let cached = Cached::new(CountRenders::new());
@@ -50,52 +49,61 @@ fn uses_cached_render() -> impl Future<Item = (), Error = JsValue> {
5049 let vdom6 = vdom0.clone();
5150 let vdom7 = vdom0.clone();
5251
52+ // We render, populate the cache, and get "1".
53+ vdom0.weak().render().await.unwrap();
5354 vdom0
5455 .weak()
55− // We render, populate the cache, and get "1".
56− .render()
57− .and_then(move |_| {
58− vdom0.weak().with_component(move |comp| {
59− let comp = comp.unwrap_mut::<Cached<CountRenders>>();
60− assert_eq!(comp.render_count.get(), 1);
61− assert_rendered(&container1, &RenderFn(|_| text("1")));
62− })
56+ .with_component(move |comp| {
57+ let comp = comp.unwrap_mut::<Cached<CountRenders>>();
58+ assert_eq!(comp.render_count.get(), 1);
59+ assert_rendered(&container1, &RenderFn(|_| text("1")));
6360 })
64− // We re-render, re-use the cached node, and get "1" again.
65− .and_then(move |_| vdom1.weak().render())
66− .and_then(move |_| {
67− vdom2.weak().with_component(move |comp| {
68− let comp = comp.unwrap_mut::<Cached<CountRenders>>();
69− assert_eq!(comp.render_count.get(), 1);
70− assert_rendered(&container2, &RenderFn(|_| text("1")));
71− })
61+ .await
62+ .unwrap();
63+
64+ // We re-render, re-use the cached node, and get "1" again.
65+ vdom1.weak().render().await.unwrap();
66+ vdom2
67+ .weak()
68+ .with_component(move |comp| {
69+ let comp = comp.unwrap_mut::<Cached<CountRenders>>();
70+ assert_eq!(comp.render_count.get(), 1);
71+ assert_rendered(&container2, &RenderFn(|_| text("1")));
7272 })
73− // We invalidate the cache, re-render, re-populate the cache, and should
74− // now have "2".
75− .and_then(move |_| {
76− vdom3.weak().with_component(move |comp| {
77− let comp = comp.unwrap_mut::<Cached<CountRenders>>();
78− Cached::invalidate(comp);
79− })
73+ .await
74+ .unwrap();
75+
76+ // We invalidate the cache, re-render, re-populate the cache, and should now have "2".
77+ vdom3
78+ .weak()
79+ .with_component(move |comp| {
80+ let comp = comp.unwrap_mut::<Cached<CountRenders>>();
81+ Cached::invalidate(comp);
8082 })
81− .and_then(move |_| vdom4.weak().render())
82− .and_then(move |_| {
83− vdom5.weak().with_component(move |comp| {
84− let comp = comp.unwrap_mut::<Cached<CountRenders>>();
85− assert_eq!(comp.render_count.get(), 2);
86− assert_rendered(&container3, &RenderFn(|_| text("2")));
87− })
83+ .await
84+ .unwrap();
85+ vdom4.weak().render().await.unwrap();
86+ vdom5
87+ .weak()
88+ .with_component(move |comp| {
89+ let comp = comp.unwrap_mut::<Cached<CountRenders>>();
90+ assert_eq!(comp.render_count.get(), 2);
91+ assert_rendered(&container3, &RenderFn(|_| text("2")));
8892 })
89− // We re-render, re-use the cached node, and get "2" again.
90− .and_then(move |_| vdom6.weak().render())
91− .and_then(move |_| {
92− vdom7.weak().with_component(move |comp| {
93− let comp = comp.unwrap_mut::<Cached<CountRenders>>();
94− assert_eq!(comp.render_count.get(), 2);
95− assert_rendered(&container4, &RenderFn(|_| text("2")));
96− })
93+ .await
94+ .unwrap();
95+
96+ // We re-render, re-use the cached node, and get "2" again.
97+ vdom6.weak().render().await.unwrap();
98+ vdom7
99+ .weak()
100+ .with_component(move |comp| {
101+ let comp = comp.unwrap_mut::<Cached<CountRenders>>();
102+ assert_eq!(comp.render_count.get(), 2);
103+ assert_rendered(&container4, &RenderFn(|_| text("2")));
97104 })
98− .map_err(|e| JsValue::from(e.to_string()))
105+ .await
106+ .unwrap();
99107}
100108
101109#[wasm_bindgen(module = "/tests/web/cached.js")]
@@ -104,8 +112,8 @@ extern "C" {
104112 fn get_clone_node_count() -> u32;
105113}
106114
107−#[wasm_bindgen_test(async)]
108−fn creating_cached_nodes_uses_clone_node() -> impl Future<Item = (), Error = JsValue> {
115+#[wasm_bindgen_test]
116+async fn creating_cached_nodes_uses_clone_node() {
109117 use dodrio::builder::*;
110118
111119 let container = create_element("div");
@@ -113,28 +121,28 @@ fn creating_cached_nodes_uses_clone_node() -> impl Future<Item = (), Error = JsV
113121 // The initial vdom render should populate the cache and save a template.
114122 let vdom0 = Rc::new(Vdom::new(&container, Cached::new(CountRenders::new())));
115123 let vdom1 = vdom0.clone();
116− let vdom2 = vdom0.clone();
124+ let _vdom2 = vdom0.clone();
117125
118126 let clone_node_count_before = get_clone_node_count();
119127
128+ // Render something entirely different...
120129 vdom0
121130 .weak()
122− // Render something entirely different...
123− .set_component(Box::new(RenderFn(|_| text("hi"))) as Box<RootRender>)
124− .and_then(move |_| {
125− // Re-render our cached node. Since we are creating it from scratch,
126− // and already have a template from the earlier render, we should
127− // call `cloneNode` here.
128− vdom1
129− .weak()
130− .set_component(Box::new(Cached::new(CountRenders::new())) as Box<RootRender>)
131− })
132− .map(move |_| {
133− let clone_node_count_after = get_clone_node_count();
134− assert_eq!(clone_node_count_after, clone_node_count_before + 1);
135− drop(vdom2);
136− })
137− .map_err(|e| JsValue::from(e.to_string()))
131+ .set_component(Box::new(RenderFn(|_| text("hi"))) as Box<dyn RootRender>)
132+ .await
133+ .unwrap();
134+
135+ // Re-render our cached node. Since we are creating it from scratch,
136+ // and already have a template from the earlier render, we should
137+ // call `cloneNode` here.
138+ vdom1
139+ .weak()
140+ .set_component(Box::new(Cached::new(CountRenders::new())) as Box<dyn RootRender>)
141+ .await
142+ .unwrap();
143+
144+ let clone_node_count_after = get_clone_node_count();
145+ assert_eq!(clone_node_count_after, clone_node_count_before + 1);
138146}
139147
140148struct Id(&'static str);
@@ -145,8 +153,8 @@ impl Default for Id {
145153 }
146154}
147155
148−impl Render for Id {
149− fn render<'a>(&self, _cx: &mut RenderContext<'a>) -> Node<'a> {
156+impl<'a> Render<'a> for Id {
157+ fn render(&self, _cx: &mut RenderContext<'a>) -> Node<'a> {
150158 text(self.0)
151159 }
152160}
tests/web/events.rs+56−73
@@ -1,6 +1,6 @@
11use super::create_element;
22use dodrio::{Node, Render, RenderContext, Vdom};
3−use futures::Future;
3+use futures::future::{select, Either};
44use std::cell::{Cell, RefCell};
55use std::rc::Rc;
66use wasm_bindgen::prelude::*;
@@ -9,7 +9,7 @@ use wasm_bindgen_test::*;
99
1010struct EventContainer {
1111 event: &'static str,
12− on_event: Box<FnMut()>,
12+ on_event: Box<dyn FnMut()>,
1313}
1414
1515impl EventContainer {
@@ -24,8 +24,8 @@ impl EventContainer {
2424 }
2525}
2626
27−impl Render for EventContainer {
28− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
27+impl<'a> Render<'a> for EventContainer {
28+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
2929 use dodrio::builder::*;
3030 div(&cx)
3131 .attr("id", "target")
@@ -44,14 +44,14 @@ fn target(container: &web_sys::Element) -> web_sys::HtmlElement {
4444 .unchecked_into()
4545}
4646
47−#[wasm_bindgen_test(async)]
48−fn click() -> impl Future<Item = (), Error = JsValue> {
47+#[wasm_bindgen_test]
48+async fn click() {
4949 let container = create_element("div");
5050
51− let (sender, receiver) = futures::sync::oneshot::channel();
51+ let (sender, receiver) = futures::channel::oneshot::channel();
5252 let mut sender = Some(sender);
5353
54− let vdom = Vdom::new(
54+ let _vdom = Vdom::new(
5555 &container,
5656 EventContainer::new("click", move || {
5757 sender
@@ -64,18 +64,14 @@ fn click() -> impl Future<Item = (), Error = JsValue> {
6464
6565 target(&container).click();
6666
67− receiver
68− .map(|_| {
69− drop(vdom);
70− })
71− .map_err(|e| JsValue::from(e.to_string()))
67+ receiver.await.unwrap();
7268}
7369
74−#[wasm_bindgen_test(async)]
75−fn updated_listener_is_called() -> impl Future<Item = (), Error = JsValue> {
70+#[wasm_bindgen_test]
71+async fn updated_listener_is_called() {
7672 let container = create_element("div");
7773
78− let (first_sender, first_receiver) = futures::sync::oneshot::channel();
74+ let (first_sender, first_receiver) = futures::channel::oneshot::channel();
7975 let mut first_sender = Some(first_sender);
8076
8177 let vdom = Vdom::new(
@@ -89,7 +85,7 @@ fn updated_listener_is_called() -> impl Future<Item = (), Error = JsValue> {
8985 }),
9086 );
9187
92− let (second_sender, second_receiver) = futures::sync::oneshot::channel();
88+ let (second_sender, second_receiver) = futures::channel::oneshot::channel();
9389 let mut second_sender = Some(second_sender);
9490
9591 vdom.weak()
@@ -100,25 +96,22 @@ fn updated_listener_is_called() -> impl Future<Item = (), Error = JsValue> {
10096 .send("second")
10197 .expect_throw("should not have dropped the receiver");
10298 })))
103− .map_err(|e| JsValue::from(e.to_string()))
104− .and_then(move |_| {
105− target(&container).click();
106−
107− first_receiver
108− .select(second_receiver)
109− .map(|(which, _other)| which)
110− .or_else(|(_error, other)| other)
111− .map(|which| {
112− assert_eq!(which, "second");
113− drop(vdom);
114− })
115− .map_err(|e| JsValue::from(e.to_string()))
116− })
99+ .await
100+ .unwrap();
101+
102+ target(&container).click();
103+
104+ match select(first_receiver, second_receiver).await {
105+ Either::Left((Ok(_), _)) => panic!(),
106+ Either::Left((Err(_), second)) => assert_eq!(second.await, Ok("second")),
107+ Either::Right((Ok(msg), _)) => assert_eq!(msg, "second"),
108+ Either::Right((Err(_), _)) => panic!(),
109+ }
117110}
118111
119112struct ListensOnlyOnFirstRender {
120113 count: Cell<usize>,
121− callback: Box<FnMut()>,
114+ callback: Box<dyn FnMut()>,
122115}
123116
124117impl ListensOnlyOnFirstRender {
@@ -133,8 +126,8 @@ impl ListensOnlyOnFirstRender {
133126 }
134127}
135128
136−impl Render for ListensOnlyOnFirstRender {
137− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
129+impl<'a> Render<'a> for ListensOnlyOnFirstRender {
130+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
138131 use dodrio::builder::*;
139132
140133 let count = self.count.get();
@@ -150,11 +143,11 @@ impl Render for ListensOnlyOnFirstRender {
150143 }
151144}
152145
153−#[wasm_bindgen_test(async)]
154−fn removed_listener_is_not_called() -> impl Future<Item = (), Error = JsValue> {
146+#[wasm_bindgen_test]
147+async fn removed_listener_is_not_called() {
155148 let container = create_element("div");
156149
157− let (outer_sender, outer_receiver) = futures::sync::oneshot::channel();
150+ let (outer_sender, outer_receiver) = futures::channel::oneshot::channel();
158151 let outer_sender = Rc::new(RefCell::new(Some(outer_sender)));
159152 let outer_listener = Closure::wrap(Box::new(move |_| {
160153 outer_sender
@@ -163,13 +156,13 @@ fn removed_listener_is_not_called() -> impl Future<Item = (), Error = JsValue> {
163156 .expect_throw("should only invoke outer_listener once")
164157 .send("outer")
165158 .expect_throw("should not have dropped receiver");
166− }) as Box<FnMut(web_sys::Event)>);
159+ }) as Box<dyn FnMut(web_sys::Event)>);
167160
168161 container
169162 .add_event_listener_with_callback("click", outer_listener.as_ref().unchecked_ref())
170163 .unwrap();
171164
172− let (vdom_sender, vdom_receiver) = futures::sync::oneshot::channel();
165+ let (vdom_sender, vdom_receiver) = futures::channel::oneshot::channel();
173166 let mut vdom_sender = Some(vdom_sender);
174167
175168 // Render a vdom with a listener into container.
@@ -184,33 +177,26 @@ fn removed_listener_is_not_called() -> impl Future<Item = (), Error = JsValue> {
184177 }),
185178 );
186179
187− vdom.weak()
188− // Re-render, so we aren't listening anymore.
189− .render()
190− .map_err(|e| JsValue::from(e.to_string()))
191− .and_then(move |_| {
192− target(&container).click();
193−
194− // We should get our container's event handler fired, and not the unmounted
195− // vdom's event handler.
196− outer_receiver
197− .select(vdom_receiver)
198− .map(|(which, _other)| which)
199− .or_else(|(_error, other)| other)
200− .map(|which| {
201− assert_eq!(which, "outer");
202− drop(outer_listener);
203− drop(vdom)
204− })
205− .map_err(|e| JsValue::from(e.to_string()))
206− })
180+ // Re-render, so we aren't listening anymore.
181+ vdom.weak().render().await.unwrap();
182+
183+ target(&container).click();
184+
185+ // We should get our container's event handler fired, and not the unmounted
186+ // vdom's event handler.
187+ match select(outer_receiver, vdom_receiver).await {
188+ Either::Left((Ok(msg), _)) => assert_eq!(msg, ("outer")),
189+ Either::Left((Err(_), _)) => panic!(),
190+ Either::Right((Ok(_), _)) => panic!(),
191+ Either::Right((Err(_), outer)) => assert_eq!(outer.await, Ok("outer")),
192+ }
207193}
208194
209−#[wasm_bindgen_test(async)]
210−fn event_does_not_fire_after_unmounting() -> impl Future<Item = (), Error = JsValue> {
195+#[wasm_bindgen_test]
196+async fn event_does_not_fire_after_unmounting() {
211197 let container = create_element("div");
212198
213− let (outer_sender, outer_receiver) = futures::sync::oneshot::channel();
199+ let (outer_sender, outer_receiver) = futures::channel::oneshot::channel();
214200 let outer_sender = Rc::new(RefCell::new(Some(outer_sender)));
215201 let outer_listener = Closure::wrap(Box::new(move |_| {
216202 outer_sender
@@ -219,13 +205,13 @@ fn event_does_not_fire_after_unmounting() -> impl Future<Item = (), Error = JsVa
219205 .expect_throw("should only invoke outer_listener once")
220206 .send("outer")
221207 .expect_throw("should not have dropped receiver");
222− }) as Box<FnMut(web_sys::Event)>);
208+ }) as Box<dyn FnMut(web_sys::Event)>);
223209
224210 container
225211 .add_event_listener_with_callback("click", outer_listener.as_ref().unchecked_ref())
226212 .unwrap();
227213
228− let (vdom_sender, vdom_receiver) = futures::sync::oneshot::channel();
214+ let (vdom_sender, vdom_receiver) = futures::channel::oneshot::channel();
229215 let mut vdom_sender = Some(vdom_sender);
230216
231217 // Render a vdom with a listener into container.
@@ -255,13 +241,10 @@ fn event_does_not_fire_after_unmounting() -> impl Future<Item = (), Error = JsVa
255241
256242 // We should get our container's event handler fired, and not the unmounted
257243 // vdom's event handler.
258− outer_receiver
259− .select(vdom_receiver)
260− .map(|(which, _other)| which)
261− .or_else(|(_error, other)| other)
262− .map(|which| {
263− assert_eq!(which, "outer");
264− drop(outer_listener);
265− })
266− .map_err(|e| JsValue::from(e.to_string()))
244+ match select(outer_receiver, vdom_receiver).await {
245+ Either::Left((Ok(msg), _)) => assert_eq!(msg, ("outer")),
246+ Either::Left((Err(_), _)) => panic!(),
247+ Either::Right((Ok(_), _)) => panic!(),
248+ Either::Right((Err(_), outer)) => assert_eq!(outer.await, Ok("outer")),
249+ }
267250}
tests/web/js_api.rs+30−37
@@ -1,8 +1,7 @@
11use super::{assert_rendered, create_element, RenderFn};
22use dodrio::{builder::*, Node, Render, RenderContext, Vdom};
33use dodrio_js_api::JsRender;
4−use futures::prelude::*;
5−use futures::sync::oneshot;
4+use futures::channel::oneshot;
65use js_sys::Object;
76use std::rc::Rc;
87use wasm_bindgen::prelude::*;
@@ -14,7 +13,7 @@ pub struct WrapJs {
1413}
1514
1615impl WrapJs {
17− pub fn new() -> (WrapJs, oneshot::Receiver<()>, Closure<FnMut()>) {
16+ pub fn new() -> (WrapJs, oneshot::Receiver<()>, Closure<dyn FnMut()>) {
1817 let (sender, receiver) = oneshot::channel();
1918
2019 let on_after_render = Closure::wrap(Box::new({
@@ -26,7 +25,7 @@ impl WrapJs {
2625 .send(())
2726 .expect_throw("receiver should not have been dropped");
2827 }
29− }) as Box<FnMut()>);
28+ }) as Box<dyn FnMut()>);
3029
3130 let component = WrapJs {
3231 inner: JsRender::new(JsComponent::new(&on_after_render)),
@@ -36,8 +35,8 @@ impl WrapJs {
3635 }
3736}
3837
39−impl Render for WrapJs {
40− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
38+impl<'a> Render<'a> for WrapJs {
39+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
4140 div(&cx)
4241 .attr("class", "wrap-js")
4342 .children([self.inner.render(cx)])
@@ -52,7 +51,7 @@ extern "C" {
5251 type JsComponent;
5352
5453 #[wasm_bindgen(constructor)]
55− fn new(on_after_render: &Closure<FnMut()>) -> JsComponent;
54+ fn new(on_after_render: &Closure<dyn FnMut()>) -> JsComponent;
5655}
5756
5857fn eval_js_rendering_component() {
@@ -96,14 +95,14 @@ fn eval_js_rendering_component() {
9695 });
9796}
9897
99−#[wasm_bindgen_test(async)]
100−fn can_use_js_rendering_components() -> impl Future<Item = (), Error = JsValue> {
98+#[wasm_bindgen_test]
99+async fn can_use_js_rendering_components() {
101100 eval_js_rendering_component();
102101
103102 let container = create_element("div");
104− let (component, receiver, closure) = WrapJs::new();
103+ let (component, receiver, _closure) = WrapJs::new();
104+ let _vdom = Rc::new(Vdom::new(&container, component));
105105
106− let vdom = Rc::new(Vdom::new(&container, component));
107106 assert_rendered(
108107 &container,
109108 &RenderFn(|cx| {
@@ -131,30 +130,24 @@ fn can_use_js_rendering_components() -> impl Future<Item = (), Error = JsValue>
131130 .expect_throw("should be an `HTMLElement` object")
132131 .click();
133132
134− receiver
135− .map(move |_| {
136− assert_rendered(
137− &container,
138− &RenderFn(|cx| {
139− div(&cx)
140− .attr("class", "wrap-js")
141− .children([span(&cx)
142− .attr("class", "js-component")
143− .children([
144− text("Here is some plain text"),
145− b(&cx)
146− .children([text("...and here is some bold text")])
147− .finish(),
148− text("1"),
149− ])
150− .finish()])
151− .finish()
152− }),
153− );
154−
155− drop(vdom);
156− drop(container);
157− drop(closure);
158− })
159− .map_err(|e| e.to_string().into())
133+ receiver.await.unwrap();
134+
135+ assert_rendered(
136+ &container,
137+ &RenderFn(|cx| {
138+ div(&cx)
139+ .attr("class", "wrap-js")
140+ .children([span(&cx)
141+ .attr("class", "js-component")
142+ .children([
143+ text("Here is some plain text"),
144+ b(&cx)
145+ .children([text("...and here is some bold text")])
146+ .finish(),
147+ text("1"),
148+ ])
149+ .finish()])
150+ .finish()
151+ }),
152+ );
160153}
tests/web/keyed.rs+18−19
@@ -1,6 +1,5 @@
11use crate::{assert_rendered, create_element};
22use dodrio::{builder::*, bumpalo, Node, Render, RenderContext, Vdom};
3−use futures::Future;
43use log::*;
54use std::rc::Rc;
65use wasm_bindgen::prelude::*;
@@ -8,8 +7,8 @@ use wasm_bindgen_test::*;
87
98struct Keyed(u16);
109
11−impl Render for Keyed {
12− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
10+impl<'a> Render<'a> for Keyed {
11+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
1312 let key = bumpalo::format!(in cx.bump, "{}", self.0).into_bump_str();
1413 div(&cx)
1514 .attr("class", "keyed")
@@ -32,13 +31,10 @@ where
3231 parent.finish()
3332}
3433
35−fn assert_keyed<Before, After>(
36− before: Before,
37− after: After,
38−) -> impl Future<Item = (), Error = JsValue>
34+async fn assert_keyed<Before, After>(before: Before, after: After) -> Result<(), JsValue>
3935where
40− Before: 'static + Render,
41− After: 'static + Render,
36+ Before: 'static + for<'a> Render<'a>,
37+ After: 'static + for<'a> Render<'a>,
4238{
4339 #[wasm_bindgen(module = "/tests/web/keyed.js")]
4440 extern "C" {
@@ -56,7 +52,7 @@ where
5652
5753 debug!("====== Rendering the *before* DOM into the physical DOM ======");
5854 let vdom1 = Rc::new(Vdom::new(&container, before.clone()));
59− let vdom2 = vdom1.clone();
55+ let _vdom2 = vdom1.clone();
6056 let saved = save_keyed_elements(&container);
6157
6258 debug!("====== Checking the *before* DOM against the physical DOM ======");
@@ -65,13 +61,14 @@ where
6561 debug!("====== Rendering the *after* DOM into the physical DOM ======");
6662 let weak = vdom1.weak();
6763 weak.set_component(Box::new(after.clone()))
68− .map(move |_| {
69− debug!("====== Checking the *after* DOM against the physical DOM ======");
70− assert_rendered(&container, &after);
71− check_keyed_elements(&container, saved);
72− drop(vdom2);
73− })
74− .map_err(|e| JsValue::from(e.to_string()))
64+ .await
65+ .map_err(|e| e.to_string())?;
66+
67+ debug!("====== Checking the *after* DOM against the physical DOM ======");
68+ assert_rendered(&container, &after);
69+ check_keyed_elements(&container, saved);
70+
71+ Ok(())
7572}
7673
7774macro_rules! keyed_tests {
@@ -86,14 +83,16 @@ macro_rules! keyed_tests {
8683 }
8784 )* ) => {
8885 $(
89− #[wasm_bindgen_test(async)]
90− fn $name() -> impl Future<Item = (), Error = wasm_bindgen::JsValue> {
86+ #[wasm_bindgen_test]
87+ async fn $name() {
9188 use crate::RenderFn;
9289 log::debug!("############### {} ###############", stringify!($name));
9390 assert_keyed(
9491 RenderFn(|$before_cx| { $( $before )* }),
9592 RenderFn(|$after_cx| { $( $after )* }),
9693 )
94+ .await
95+ .unwrap()
9796 }
9897 )*
9998 }
tests/web/main.rs+19−17
@@ -6,7 +6,6 @@ use bumpalo::Bump;
66use dodrio::{
77 Attribute, CachedSet, ElementNode, Node, NodeKind, Render, RenderContext, TextNode, Vdom,
88};
9−use futures::prelude::*;
109use fxhash::FxHashMap;
1110use log::*;
1211use std::cell::RefCell;
@@ -51,7 +50,7 @@ pub fn init_logging() {
5150
5251/// Assert that the `container` contains the physical DOM tree that matches
5352/// `r`'s rendered virtual DOM.
54−pub fn assert_rendered<R: Render>(container: &web_sys::Element, r: &R) {
53+pub fn assert_rendered<R: for<'a> Render<'a>>(container: &web_sys::Element, r: &R) {
5554 init_logging();
5655
5756 let cached_set = &RefCell::new(CachedSet::default());
@@ -156,11 +155,11 @@ pub struct RenderFn<F>(F)
156155where
157156 F: for<'a> Fn(&mut RenderContext<'a>) -> Node<'a>;
158157
159−impl<F> Render for RenderFn<F>
158+impl<'a, F> Render<'a> for RenderFn<F>
160159where
161− F: for<'a> Fn(&mut RenderContext<'a>) -> Node<'a>,
160+ F: for<'b> Fn(&mut RenderContext<'b>) -> Node<'b>,
162161{
163− fn render<'a>(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
162+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
164163 (self.0)(cx)
165164 }
166165}
@@ -168,10 +167,10 @@ where
168167/// Assert that if we start by rendering the `before` virtual DOM tree into a
169168/// physical DOM tree, and then diff it with the `after` virtual DOM tree, then
170169/// the physical DOM tree correctly matches `after`.
171−pub fn assert_before_after<R, S>(before: R, after: S) -> impl Future<Item = (), Error = JsValue>
170+pub async fn assert_before_after<R, S>(before: R, after: S) -> Result<(), JsValue>
172171where
173− R: 'static + Render,
174− S: 'static + Render,
172+ R: 'static + for<'a> Render<'a>,
173+ S: 'static + for<'a> Render<'a>,
175174{
176175 let container = create_element("div");
177176
@@ -180,7 +179,7 @@ where
180179
181180 debug!("====== Rendering the *before* DOM into the physical DOM ======");
182181 let vdom1 = Rc::new(Vdom::new(&container, before.clone()));
183− let vdom2 = vdom1.clone();
182+ let _vdom2 = vdom1.clone();
184183
185184 debug!("====== Checking the *before* DOM against the physical DOM ======");
186185 assert_rendered(&container, &before);
@@ -188,12 +187,13 @@ where
188187 debug!("====== Rendering the *after* DOM into the physical DOM ======");
189188 let weak = vdom1.weak();
190189 weak.set_component(Box::new(after.clone()))
191− .map(move |_| {
192− debug!("====== Checking the *after* DOM against the physical DOM ======");
193− assert_rendered(&container, &after);
194− drop(vdom2);
195− })
196− .map_err(|e| JsValue::from(e.to_string()))
190+ .await
191+ .map_err(|e| e.to_string())?;
192+
193+ debug!("====== Checking the *after* DOM against the physical DOM ======");
194+ assert_rendered(&container, &after);
195+
196+ Ok(())
197197}
198198
199199/// A helper macro for declaring a bunch of `assert_before_after` tests.
@@ -210,14 +210,16 @@ macro_rules! before_after {
210210 }
211211 )* ) => {
212212 $(
213− #[wasm_bindgen_test(async)]
214− fn $name() -> impl Future<Item = (), Error = wasm_bindgen::JsValue> {
213+ #[wasm_bindgen_test]
214+ async fn $name() {
215215 use crate::{assert_before_after, RenderFn};
216216 log::debug!("############### {} ###############", stringify!($name));
217217 assert_before_after(
218218 RenderFn(|$before_bump| { $( $before )* }),
219219 RenderFn(|$after_bump| { $( $after )* })
220220 )
221+ .await
222+ .unwrap()
221223 }
222224 )*
223225 }
tests/web/render.rs+89−2
@@ -1,7 +1,7 @@
11use super::{assert_rendered, before_after, create_element, RenderFn};
2−use dodrio::{builder::*, Vdom};
3−use futures::prelude::*;
2+use dodrio::{builder::*, bumpalo::collections::String, Node, Render, RenderContext, Vdom};
43use std::rc::Rc;
4+use wasm_bindgen::{ JsCast};
55use wasm_bindgen_test::*;
66
77#[wasm_bindgen_test]
@@ -35,6 +35,93 @@ fn container_is_emptied_upon_drop() {
3535 assert!(container.first_child().is_none());
3636}
3737
38+/// Renders a child with a lifetime scoped to the RenderContext bump arena.
39+#[wasm_bindgen_test]
40+fn render_bump_scoped_node() {
41+ struct Child<'a> {
42+ name: &'a str,
43+ }
44+
45+ impl<'a> Render<'a> for Child<'a> {
46+ fn render(&self, _cx: &mut RenderContext<'a>) -> Node<'a> {
47+ text(self.name)
48+ }
49+ }
50+
51+ struct Parent;
52+
53+ impl<'a> Render<'a> for Parent {
54+ fn render(&self, cx: &mut RenderContext<'a>) -> Node<'a> {
55+ let child_name = String::from_str_in("child", cx.bump).into_bump_str();
56+
57+ div(&cx)
58+ .children([Child { name: child_name }.render(cx)])
59+ .finish()
60+ }
61+ }
62+
63+ let parent = Rc::new(RenderFn(|cx| {
64+ Parent.render(cx)
65+ }));
66+
67+ let container = create_element("div");
68+ let _vdom = Vdom::new(&container, parent.clone());
69+
70+ assert_rendered(&container, &parent);
71+}
72+
73+/// Originally, dodrio would use the className property for SVGs.
74+///
75+/// This is problematic because when SVG elements are created, the className is flagged as a read
76+/// only property, so setting it causes an exception to be thrown. Here's an example of how this
77+/// happens:
78+///
79+/// let elem = web_sys::window()
80+/// .unwrap()
81+/// .document()
82+/// .unwrap()
83+/// .create_element_ns(Some("http://www.w3.org/2000/svg"), "svg")
84+/// .unwrap();
85+///
86+/// elem.set_class_name("does-not-work");
87+///
88+/// -----------------------------------------------------------------------------------------------
89+///
90+/// wasm-bindgen: imported JS function that was not marked as `catch` threw an error:
91+/// setting getter-only property "className"
92+///
93+/// -----------------------------------------------------------------------------------------------
94+///
95+/// Now, dodrio passes the 'class' attribute of all namespaced elements into set_attribute. This
96+/// satisfies the restrictions on SVG and keeps the optimized path for non-namespaced elements
97+#[wasm_bindgen_test(async)]
98+async fn test_svg_set_class() {
99+ let container = create_element("div");
100+
101+
102+ let valid_svg = Rc::new(RenderFn(|cx| {
103+ ElementBuilder::new(cx.bump, "svg")
104+ .namespace(Some("http://www.w3.org/2000/svg"))
105+ .attr("class", "works")
106+ .finish()
107+ }));
108+
109+ let vdom = Vdom::new(&container, valid_svg.clone());
110+ let weak = vdom.weak();
111+
112+ weak.render().await.unwrap();
113+
114+ assert_eq!(
115+ "works",
116+ container.first_child()
117+ .expect("unable to get svg")
118+ .dyn_ref::<web_sys::Element>()
119+ .expect("svg should be an element")
120+ .get_attribute("class")
121+ .expect("unable to get 'class' of svg")
122+ );
123+}
124+
38125before_after! {
39126 same_text {
40127 before(_cx) {