Update nbody example for Rust (AssemblyScript#528)

MaxGraey · dcodeIO · commit 5f547131ab77 · 2019-03-06T21:27:54.000+01:00
diff --git a/examples/n-body/README.md b/examples/n-body/README.md
@@ -32,16 +32,18 @@ Benchmark
 ***Environment:***
 - MacBook Pro (Retina, 15-inch, Late 2013)
 - macOS 10.14.3
-- node.js v11.9.0
-- rustc 1.33.0-nightly (ceb251214 2019-01-16)
+- node.js v11.10.1
+- rustc 1.35.0-nightly (a9da8fc9c 2019-03-04)
 
 ***Results:***
 
 |        Target           |  Time, ***ms*** | Size, ***KB*** |
 |-------------------------|-----------------|----------------|
-| **AssemblyScript WASM** | **2901**        | **2**          |
-| AssemblyScript ASMJS    | 3720            | 19*            |
-| JavaScript              | 2716            | 5*             |
-| Rust WASM               | 2883            | 13             |
+| **AssemblyScript WASM** | **2921**        | **2**          |
+| AssemblyScript ASMJS    | 3807            | 19*            |
+| JavaScript              | 2757            | 5*             |
+| Rust WASM               | 2866            | 20 / 2**       |
 
 ___* unminified___
+
+___** after wasm-gc___
diff --git a/examples/n-body/build/rust.optimized.wasm b/examples/n-body/build/rust.optimized.wasm
diff --git a/examples/n-body/rust/Cargo.lock b/examples/n-body/rust/Cargo.lock
diff --git a/examples/n-body/rust/README.md b/examples/n-body/rust/README.md
@@ -1,7 +1,7 @@
 ### Build
 
 ```bash
-cargo build --release --target=wasm32-unknown-unknown
+cargo +nightly build --release --target wasm32-unknown-unknown
 ```
 
-***Next step optimize target wasm via wasm-opt.***
+***Next step optimize target wasm via wasm-gc***
diff --git a/examples/n-body/rust/index.js b/examples/n-body/rust/index.js
@@ -8,8 +8,8 @@ const compiled = new WebAssembly.Module(
 const imports = {
   env: {
     memory: new WebAssembly.Memory({ initial: 17 }),
-    abort: (filename, line, column) => {
-      throw Error("abort called at " + line + ":" + colum);
+    abort: (_filename, line, column) => {
+      throw Error("abort called at " + line + ":" + column);
     }
   }
 };
diff --git a/examples/n-body/rust/src/lib.rs b/examples/n-body/rust/src/lib.rs
@@ -1,6 +1,6 @@
 // Code adopted from https://benchmarksgame-team.pages.debian.net/benchmarksgame/program/nbody-rust-1.html
 
-#![feature(core_intrinsics, panic_implementation)]
+#![feature(core_intrinsics)]
 #![no_std]
 
 use core::intrinsics;
@@ -156,18 +156,18 @@ fn offset_momentum(bodies: &mut [Planet; N_BODIES]) {
 }
 
 #[no_mangle]
-pub unsafe extern "C" fn init() {
+pub unsafe extern fn init() {
   offset_momentum(&mut BODIES);
 }
 
 #[no_mangle]
-pub unsafe extern "C" fn step() -> f64 {
+pub unsafe extern fn step() -> f64 {
   advance(&mut BODIES, 0.01);
   energy(&BODIES)
 }
 
 #[no_mangle]
-pub unsafe extern "C" fn bench(steps: i32) {
+pub unsafe extern fn bench(steps: i32) {
   for _ in 0..steps {
     advance(&mut BODIES, 0.01);
   }

Original file line number	Diff line number	Diff line change
`@@ -8,8 +8,8 @@ const compiled = new WebAssembly.Module(`
`8`	`8`	`const imports = {`
`9`	`9`	`env: {`
`10`	`10`	`memory: new WebAssembly.Memory({ initial: 17 }),`
`11`		`- abort: (filename, line, column) => {`
`12`		`- throw Error("abort called at " + line + ":" + colum);`
	`11`	`+ abort: (_filename, line, column) => {`
	`12`	`+ throw Error("abort called at " + line + ":" + column);`
`13`	`13`	`}`
`14`	`14`	`}`
`15`	`15`	`};`
Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,6 @@`
`1`	`1`	`// Code adopted from https://benchmarksgame-team.pages.debian.net/benchmarksgame/program/nbody-rust-1.html`
`2`	`2`
`3`		`-#![feature(core_intrinsics, panic_implementation)]`
	`3`	`+#![feature(core_intrinsics)]`
`4`	`4`	`#![no_std]`
`5`	`5`
`6`	`6`	`use core::intrinsics;`
`@@ -156,18 +156,18 @@ fn offset_momentum(bodies: &mut [Planet; N_BODIES]) {`
`156`	`156`	`}`
`157`	`157`
`158`	`158`	`#[no_mangle]`
`159`		`-pub unsafe extern "C" fn init() {`
	`159`	`+pub unsafe extern fn init() {`
`160`	`160`	`offset_momentum(&mut BODIES);`
`161`	`161`	`}`
`162`	`162`
`163`	`163`	`#[no_mangle]`
`164`		`-pub unsafe extern "C" fn step() -> f64 {`
	`164`	`+pub unsafe extern fn step() -> f64 {`
`165`	`165`	`advance(&mut BODIES, 0.01);`
`166`	`166`	`energy(&BODIES)`
`167`	`167`	`}`
`168`	`168`
`169`	`169`	`#[no_mangle]`
`170`		`-pub unsafe extern "C" fn bench(steps: i32) {`
	`170`	`+pub unsafe extern fn bench(steps: i32) {`
`171`	`171`	`for _ in 0..steps {`
`172`	`172`	`advance(&mut BODIES, 0.01);`
`173`	`173`	`}`