mirror of
https://github.com/rustwasm/wasm-bindgen.git
synced 2024-12-27 12:06:14 +03:00
542 lines
16 KiB
Rust
542 lines
16 KiB
Rust
extern crate wasm_bindgen_cli_support as cli;
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use std::env;
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use std::fs::{self, File};
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use std::io::{self, Read, Write};
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use std::path::{Path, PathBuf};
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use std::process::{Command, Stdio};
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use std::sync::atomic::*;
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use std::sync::{Once, ONCE_INIT};
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use std::time::Instant;
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static CNT: AtomicUsize = ATOMIC_USIZE_INIT;
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thread_local!(static IDX: usize = CNT.fetch_add(1, Ordering::SeqCst));
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struct Project {
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files: Vec<(String, String)>,
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debug: bool,
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node: bool,
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no_std: bool,
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serde: bool,
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rlib: bool,
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node_args: Vec<String>,
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deps: Vec<String>,
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}
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fn project() -> Project {
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let dir = Path::new(env!("CARGO_MANIFEST_DIR"));
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let mut lockfile = String::new();
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fs::File::open(&dir.join("Cargo.lock"))
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.unwrap()
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.read_to_string(&mut lockfile)
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.unwrap();
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Project {
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debug: true,
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node: false,
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no_std: false,
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serde: false,
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rlib: false,
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deps: Vec::new(),
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node_args: Vec::new(),
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files: vec![
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("Cargo.lock".to_string(), lockfile),
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(
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"run-node.js".to_string(),
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r#"require("./test").test();"#.to_string(),
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),
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(
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"webpack.config.js".to_string(),
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r#"
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const path = require('path');
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module.exports = {
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entry: './run.js',
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mode: "development",
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devtool: "source-map",
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module: {
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rules: [
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{
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test: /\.ts$/,
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use: 'ts-loader',
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exclude: /node_modules/
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}
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]
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},
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resolve: {
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extensions: [ '.ts', '.js', '.wasm' ]
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},
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output: {
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filename: 'bundle.js',
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path: path.resolve(__dirname, '.')
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},
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target: 'node'
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};
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"#.to_string(),
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),
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(
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"tsconfig.json".to_string(),
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r#"
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{
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"compilerOptions": {
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"noEmitOnError": true,
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"noImplicitAny": true,
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"noImplicitThis": true,
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"noUnusedParameters": true,
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"noUnusedLocals": true,
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"noImplicitReturns": true,
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"strictFunctionTypes": true,
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"strictNullChecks": true,
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"alwaysStrict": true,
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"strict": true,
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"target": "es5",
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"lib": ["es2015"]
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}
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}
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"#.to_string(),
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),
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],
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}
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}
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fn root() -> PathBuf {
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let idx = IDX.with(|x| *x);
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let mut me = env::current_exe().unwrap();
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me.pop(); // chop off exe name
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me.pop(); // chop off `deps`
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me.pop(); // chop off `debug` / `release`
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me.push("generated-tests");
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me.push(&format!("test{}", idx));
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return me;
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}
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fn assert_bigint_support() -> Option<&'static str> {
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static BIGINT_SUPPORED: AtomicUsize = ATOMIC_USIZE_INIT;
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static INIT: Once = ONCE_INIT;
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INIT.call_once(|| {
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let mut cmd = Command::new("node");
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cmd.arg("-e").arg("BigInt");
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cmd.stdin(Stdio::null())
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.stdout(Stdio::piped())
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.stderr(Stdio::piped());
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if cmd.status().unwrap().success() {
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BIGINT_SUPPORED.store(1, Ordering::SeqCst);
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return;
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}
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cmd.arg("--harmony-bigint");
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if cmd.status().unwrap().success() {
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BIGINT_SUPPORED.store(2, Ordering::SeqCst);
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return;
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}
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});
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match BIGINT_SUPPORED.load(Ordering::SeqCst) {
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1 => return None,
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2 => return Some("--harmony-bigint"),
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_ => panic!(
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"the version of node.js that is installed for these tests \
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does not support `BigInt`, you may wish to try installing \
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node 10 to fix this"
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),
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}
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}
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impl Project {
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fn file(&mut self, name: &str, contents: &str) -> &mut Project {
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self.files.push((name.to_string(), contents.to_string()));
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self
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}
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fn debug(&mut self, debug: bool) -> &mut Project {
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self.debug = debug;
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self
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}
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fn node(&mut self, node: bool) -> &mut Project {
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self.node = node;
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self
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}
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fn no_std(&mut self, no_std: bool) -> &mut Project {
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self.no_std = no_std;
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self
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}
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fn serde(&mut self, serde: bool) -> &mut Project {
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self.serde = serde;
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self
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}
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fn rlib(&mut self, rlib: bool) -> &mut Project {
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self.rlib = rlib;
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self
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}
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fn depend(&mut self, dep: &str) -> &mut Project {
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self.deps.push(dep.to_string());
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self
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}
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fn add_local_dependency(&mut self, name: &str, path: &str) -> &mut Project {
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self.deps
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.push(format!("{} = {{ path = '{}' }}", name, path));
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self
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}
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fn crate_name(&self) -> String {
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format!("test{}", IDX.with(|x| *x))
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}
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fn requires_bigint(&mut self) -> &mut Project {
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if let Some(arg) = assert_bigint_support() {
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self.node_args.push(arg.to_string());
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}
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self
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}
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fn generate_webidl_bindings(&mut self) -> Vec<PathBuf> {
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let mut res = Vec::new();
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let mut origpaths = Vec::new();
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for (path, _) in &self.files {
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let path = Path::new(&path);
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let extension = path.extension().map(|x| x.to_str().unwrap());
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if extension != Some("webidl") {
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continue;
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}
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res.push(path.with_extension("rs"));
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origpaths.push(path.to_owned());
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}
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if res.is_empty() {
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return res;
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}
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let mut buildrs = r#"
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extern crate wasm_bindgen_webidl;
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use wasm_bindgen_webidl::compile_file;
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use std::env;
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use std::fs::{self, File};
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use std::io::Write;
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use std::path::Path;
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fn main() {
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let dest = env::var("OUT_DIR").unwrap();
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"#.to_string();
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for (path, origpath) in res.iter().zip(origpaths.iter()) {
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buildrs.push_str(&format!(
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r#"
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fs::create_dir_all("{}").unwrap();
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File::create(&Path::new(&dest).join("{}"))
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.unwrap()
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.write_all(
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compile_file(Path::new("{}"))
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.unwrap()
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.as_bytes()
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)
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.unwrap();
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"#,
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path.parent().unwrap().to_str().unwrap(),
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path.to_str().unwrap(),
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origpath.to_str().unwrap(),
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));
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self.files.push((
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Path::new("src").join(path).to_str().unwrap().to_string(),
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format!(
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r#"include!(concat!(env!("OUT_DIR"), "/{}"));"#,
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path.display()
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),
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));
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}
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buildrs.push('}');
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self.files.push(("build.rs".to_string(), buildrs));
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res
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}
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fn generate_js_entry(&mut self, modules: Vec<PathBuf>) {
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let mut runjs = r#"
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import * as process from "process";
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"#.to_string();
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if !modules.is_empty() {
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runjs.push_str(r#"Promise.all(["#);
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for module in &modules {
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runjs.push_str(&format!(
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r#"import('./{}'),"#,
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module.with_extension("").to_str().unwrap()
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));
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}
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runjs.push_str(
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r#"]).then(results => { results.map(module => Object.assign(global, module));"#,
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);
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}
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runjs.push_str(
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r#"
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let wasm = import('./out');
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const test = import('./test');
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"#,
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);
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if !modules.is_empty() {
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runjs.push_str("return ");
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}
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runjs.push_str(r#"Promise.all([test, wasm])"#);
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if !modules.is_empty() {
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runjs.push_str("})");
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}
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runjs.push_str(
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r#"
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.then(results => {
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let [test, wasm] = results;
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test.test();
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if (wasm.assertStackEmpty)
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wasm.assertStackEmpty();
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if (wasm.assertSlabEmpty)
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wasm.assertSlabEmpty();
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})
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.catch(error => {
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console.error(error);
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process.exit(1);
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});
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"#,
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);
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self.files.push(("run.js".to_string(), runjs));
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}
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fn ensure_test_entry(&mut self) {
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if !self
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.files
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.iter()
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.any(|(path, _)| path == "test.ts" || path == "test.js")
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{
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self.files.push((
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"test.ts".to_string(),
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r#"export {test} from './out';"#.to_string(),
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));
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}
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}
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/// build + cargo cmd execution
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fn cargo_build(&mut self) -> (PathBuf, PathBuf) {
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let (root, target_dir) = self.build();
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let mut cmd = Command::new("cargo");
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cmd.arg("build")
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.arg("--target")
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.arg("wasm32-unknown-unknown")
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.current_dir(&root)
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.env("CARGO_TARGET_DIR", &target_dir)
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// Catch any warnings in generated code because we don't want any
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.env("RUSTFLAGS", "-Dwarnings");
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run(&mut cmd, "cargo");
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(root, target_dir)
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}
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fn build(&mut self) -> (PathBuf, PathBuf) {
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self.ensure_test_entry();
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let webidl_modules = self.generate_webidl_bindings();
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self.generate_js_entry(webidl_modules);
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let mut manifest = format!(
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r#"
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[package]
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name = "test{}"
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version = "0.0.1"
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authors = []
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[workspace]
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[lib]
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"#,
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IDX.with(|x| *x)
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);
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if !self.rlib {
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manifest.push_str("crate-type = [\"cdylib\"]\n");
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}
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manifest.push_str("[build-dependencies]\n");
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manifest.push_str("wasm-bindgen-webidl = { path = '");
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manifest.push_str(env!("CARGO_MANIFEST_DIR"));
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manifest.push_str("/crates/webidl' }\n");
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manifest.push_str("[dependencies]\n");
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for dep in self.deps.iter() {
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manifest.push_str(dep);
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manifest.push_str("\n");
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}
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manifest.push_str("wasm-bindgen = { path = '");
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manifest.push_str(env!("CARGO_MANIFEST_DIR"));
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manifest.push_str("'");
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if self.no_std {
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manifest.push_str(", default-features = false");
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}
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if self.serde {
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manifest.push_str(", features = ['serde-serialize']");
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}
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manifest.push_str(" }\n");
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self.files.push(("Cargo.toml".to_string(), manifest));
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let root = root();
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drop(fs::remove_dir_all(&root));
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for &(ref file, ref contents) in self.files.iter() {
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let dst = root.join(file);
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fs::create_dir_all(dst.parent().unwrap()).unwrap();
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fs::File::create(&dst)
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.unwrap()
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.write_all(contents.as_ref())
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.unwrap();
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}
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let target_dir = root.parent().unwrap() // chop off test name
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.parent().unwrap(); // chop off `generated-tests`
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(root.clone(), target_dir.to_path_buf())
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}
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fn test(&mut self) {
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let (root, target_dir) = self.cargo_build();
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self.gen_bindings(&root, &target_dir);
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let mut wasm = Vec::new();
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File::open(root.join("out_bg.wasm")).unwrap()
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.read_to_end(&mut wasm).unwrap();
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let obj = cli::wasm2es6js::Config::new()
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.base64(true)
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.generate(&wasm)
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.expect("failed to convert wasm to js");
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File::create(root.join("out_bg.d.ts")).unwrap()
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.write_all(obj.typescript().as_bytes()).unwrap();
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// move files from the root into each test, it looks like this may be
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// needed for webpack to work well when invoked concurrently.
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fs::hard_link("package.json", root.join("package.json")).unwrap();
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if !Path::new("node_modules").exists() {
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panic!("\n\nfailed to find `node_modules`, have you run `npm install` yet?\n\n");
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}
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fs::hard_link("package-lock.json", root.join("package-lock.json")).unwrap();
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let cwd = env::current_dir().unwrap();
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symlink_dir(&cwd.join("node_modules"), &root.join("node_modules")).unwrap();
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if self.node {
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let mut cmd = Command::new("node");
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cmd.args(&self.node_args);
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cmd.arg(root.join("run-node.js")).current_dir(&root);
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run(&mut cmd, "node");
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} else {
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let mut cmd = if cfg!(windows) {
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let mut c = Command::new("cmd");
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c.arg("/c");
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c.arg("npm");
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c
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} else {
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Command::new("npm")
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};
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cmd.arg("run").arg("run-webpack").current_dir(&root);
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run(&mut cmd, "npm");
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let mut cmd = Command::new("node");
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cmd.args(&self.node_args);
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cmd.arg(root.join("bundle.js")).current_dir(&root);
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run(&mut cmd, "node");
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}
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}
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/// execute the cli against the current test .wasm
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fn gen_bindings(&self, root: &PathBuf, target_dir: &PathBuf) {
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let idx = IDX.with(|x| *x);
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let out = target_dir.join(&format!("wasm32-unknown-unknown/debug/test{}.wasm", idx));
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let as_a_module = root.join("out.wasm");
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fs::copy(&out, &as_a_module).unwrap();
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let res = cli::Bindgen::new()
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.input_path(&as_a_module)
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.typescript(true)
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.nodejs(self.node)
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.debug(self.debug)
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.generate(&root);
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if let Err(e) = res {
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for e in e.causes() {
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println!("- {}", e);
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}
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panic!("failed");
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}
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}
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fn read_js(&self) -> String {
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let path = root().join("out.js");
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println!("js, {:?}", &path);
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fs::read_to_string(path).expect("Unable to read js")
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}
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}
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#[cfg(unix)]
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fn symlink_dir(a: &Path, b: &Path) -> io::Result<()> {
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use std::os::unix::fs::symlink;
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symlink(a, b)
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}
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#[cfg(windows)]
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fn symlink_dir(a: &Path, b: &Path) -> io::Result<()> {
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use std::os::windows::fs::symlink_dir;
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symlink_dir(a, b)
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}
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fn run(cmd: &mut Command, program: &str) {
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println!("···················································");
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println!("running {:?}", cmd);
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let start = Instant::now();
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let output = match cmd.output() {
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Ok(output) => output,
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Err(err) => panic!("failed to spawn `{}`: {}", program, err),
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};
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println!("exit: {}", output.status);
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let dur = start.elapsed();
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println!(
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"dur: {}.{:03}ms",
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dur.as_secs(),
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dur.subsec_nanos() / 1_000_000
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);
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if output.stdout.len() > 0 {
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println!("stdout ---\n{}", String::from_utf8_lossy(&output.stdout));
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}
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if output.stderr.len() > 0 {
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println!("stderr ---\n{}", String::from_utf8_lossy(&output.stderr));
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}
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assert!(output.status.success());
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}
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mod api;
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mod char;
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mod classes;
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mod closures;
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mod dependencies;
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mod enums;
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mod import_class;
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mod imports;
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mod jsobjects;
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#[cfg(feature = "js_globals")] mod js_globals;
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mod math;
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mod node;
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mod non_debug;
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mod non_wasm;
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mod simple;
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mod slice;
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mod structural;
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mod u64;
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mod webidl;
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mod comments;
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mod validate_prt; |