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adding Wasm-bindgen

pull/18/head
Jason Williams 6 years ago
parent
2e319cbf6e
commit
f7be6f8118
11 changed files with 3799 additions and 32 deletions
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  1. 3
      .gitignore
  2. 116
      Cargo.lock
  3. 2
      Cargo.toml
  4. 37
      README.md
  5. 9
      index.js
  6. 14
      package.json
  7. 19
      src/bin/bin.rs
  8. 63
      src/lib/lib.rs
  9. 7
      tests/js/test.js
  10. 25
      webpack.config.js
  11. 3536
      yarn.lock

3
.gitignore vendored
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@ -1,2 +1,3 @@
/target
target
**/*.rs.bk
node_modules

116
Cargo.lock generated
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@ -9,6 +9,7 @@ dependencies = [
"gc_derive 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
"rand 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.32 (registry+https://github.com/rust-lang/crates.io-index)",
"wasm-bindgen 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -16,6 +17,16 @@ name = "bitflags"
version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "bumpalo"
version = "2.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "cfg-if"
version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "chrono"
version = "0.4.6"
@ -68,11 +79,24 @@ name = "itoa"
version = "0.4.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "lazy_static"
version = "1.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "libc"
version = "0.2.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "log"
version = "0.4.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "num-integer"
version = "0.1.39"
@ -86,11 +110,27 @@ name = "num-traits"
version = "0.2.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "proc-macro2"
version = "0.4.30"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "quote"
version = "0.3.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "quote"
version = "0.6.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "rand"
version = "0.5.5"
@ -151,6 +191,16 @@ dependencies = [
"unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "syn"
version = "0.15.34"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "synom"
version = "0.11.3"
@ -183,6 +233,59 @@ name = "unicode-xid"
version = "0.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "unicode-xid"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "wasm-bindgen"
version = "0.2.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"wasm-bindgen-macro 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "wasm-bindgen-backend"
version = "0.2.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"bumpalo 2.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
"proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)",
"wasm-bindgen-shared 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "wasm-bindgen-macro"
version = "0.2.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
"wasm-bindgen-macro-support 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "wasm-bindgen-macro-support"
version = "0.2.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)",
"wasm-bindgen-backend 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
"wasm-bindgen-shared 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "wasm-bindgen-shared"
version = "0.2.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "winapi"
version = "0.3.6"
@ -204,6 +307,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[metadata]
"checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
"checksum bumpalo 2.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4639720be048090544634e0402490838995ccdc9d2fe648f528f30d3c33ae71f"
"checksum cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
"checksum chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "45912881121cb26fad7c38c17ba7daa18764771836b34fab7d3fbd93ed633878"
"checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
"checksum fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
@ -211,10 +316,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum gc 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "630b15fafc2270fc89de904da9ebb8b950642a5ed7bd99ec3f95558b0831ea9a"
"checksum gc_derive 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2501c15cbaf28a0c2214617aa85351982a933161d7937fe6cd71c855364e0ea6"
"checksum itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1306f3464951f30e30d12373d31c79fbd52d236e5e896fd92f96ec7babbbe60b"
"checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
"checksum libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)" = "76e3a3ef172f1a0b9a9ff0dd1491ae5e6c948b94479a3021819ba7d860c8645d"
"checksum log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c84ec4b527950aa83a329754b01dbe3f58361d1c5efacd1f6d68c494d08a17c6"
"checksum num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "e83d528d2677f0518c570baf2b7abdcf0cd2d248860b68507bdcb3e91d4c0cea"
"checksum num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0b3a5d7cc97d6d30d8b9bc8fa19bf45349ffe46241e8816f50f62f6d6aaabee1"
"checksum proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)" = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
"checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
"checksum quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "faf4799c5d274f3868a4aae320a0a182cbd2baee377b378f080e16a23e9d80db"
"checksum rand 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e464cd887e869cddcae8792a4ee31d23c7edd516700695608f5b98c67ee0131c"
"checksum rand_core 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1961a422c4d189dfb50ffa9320bf1f2a9bd54ecb92792fb9477f99a1045f3372"
"checksum rand_core 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0905b6b7079ec73b314d4c748701f6931eb79fd97c668caa3f1899b22b32c6db"
@ -223,10 +332,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)" = "15c141fc7027dd265a47c090bf864cf62b42c4d228bbcf4e51a0c9e2b0d3f7ef"
"checksum serde_json 1.0.32 (registry+https://github.com/rust-lang/crates.io-index)" = "43344e7ce05d0d8280c5940cabb4964bea626aa58b1ec0e8c73fa2a8512a38ce"
"checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
"checksum syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)" = "a1393e4a97a19c01e900df2aec855a29f71cf02c402e2f443b8d2747c25c5dbe"
"checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
"checksum synstructure 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3a761d12e6d8dcb4dcf952a7a89b475e3a9d69e4a69307e01a470977642914bd"
"checksum time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "d825be0eb33fda1a7e68012d51e9c7f451dc1a69391e7fdc197060bb8c56667b"
"checksum unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"
"checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
"checksum wasm-bindgen 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)" = "546e4ab1bf7f9a3532d21472efd72d01a23f55abd885c60b165f393394dbad95"
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2
Cargo.toml
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@ -16,8 +16,10 @@ gc_derive = "0.3.2"
serde_json = "1.0"
rand = "0.5.5"
chrono = "0.4"
wasm-bindgen = "0.2.43"
[lib]
crate-type = ["cdylib", "lib"]
name = "boa"
path = "src/lib/lib.rs"

37
README.md
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@ -1,24 +1,39 @@
### Boa
This is an experimental Javascript lexer, parser and Just-in-Time compiler written in Rust. Currently, it has support for some of the language.
This is an experimental Javascript lexer, parser and Just-in-Time compiler written in Rust. Currently, it has support for some of the language.
[![Build Status](https://travis-ci.com/jasonwilliams/boa.svg?branch=master)](https://travis-ci.com/jasonwilliams/boa)
[![](http://meritbadge.herokuapp.com/boa)](https://crates.io/crates/boa)
[![](https://docs.rs/Boa/badge.svg)](https://docs.rs/Boa/)
This project is an attempted rewrite of Bebbington's js.rs. Most of the Rust code has been rewritten from scratch.
#### WASM
This interpreter can be exposed to javascript!
You can build the example locally with:
```
$ yarn install
$ yarn serve
```
In the console you can use `window.evaluate` to pass JavaScript in
#### Roadmap
* ~string.length~ - works in 0.1.5
* Adding support for constructors
* Better error output
* Passing [test262](https://github.com/tc39/test262)
- ~string.length~ - works in 0.1.5
- Adding support for constructors
- Better error output
- Passing [test262](https://github.com/tc39/test262)
#### Usage
* Checkout this project
* Build `cargo build`
* `cargo run`
* You can make changes to tests/js/test.js and build again
* If any JS doesn't work its a bug! Please raise an issue
- Checkout this project
- Build `cargo build`
- `cargo run`
- You can make changes to tests/js/test.js and build again
- If any JS doesn't work its a bug! Please raise an issue
#### Example
![Example](docs/img/boaTest.gif)

9
index.js
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@ -0,0 +1,9 @@
// Note that a dynamic `import` statement here is required due to
// webpack/webpack#6615, but in theory `import { greet } from './pkg/hello_world';`
// will work here one day as well!
const rust = import("./pkg/boa");
rust.then(m => {
window.evaluate = m.evaluate;
m.evaluate('var a = "hello"; a;');
});

14
package.json
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@ -0,0 +1,14 @@
{
"scripts": {
"build": "webpack",
"serve": "webpack-dev-server"
},
"devDependencies": {
"@wasm-tool/wasm-pack-plugin": "0.2.1",
"text-encoding": "^0.7.0",
"html-webpack-plugin": "^3.2.0",
"webpack": "^4.29.4",
"webpack-cli": "^3.1.1",
"webpack-dev-server": "^3.1.0"
}
}

19
src/bin/bin.rs
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@ -1,23 +1,8 @@
extern crate boa;
use boa::exec::{Executor, Interpreter};
use boa::syntax::lexer::Lexer;
use boa::syntax::parser::Parser;
use boa::exec;
use std::fs::read_to_string;
pub fn main() {
let buffer = read_to_string("tests/js/test.js").unwrap();
let mut lexer = Lexer::new(&buffer);
lexer.lex().unwrap();
let tokens = lexer.tokens;
// Setup executor
let expr = Parser::new(tokens).parse_all().unwrap();
// print!("{:#?}", expr);
let mut engine: Interpreter = Executor::new();
let result = engine.run(&expr);
match result {
Ok(v) => print!("{}", v),
Err(v) => print!("Error: {}", v),
}
exec(buffer);
}

63
src/lib/lib.rs
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@ -1,7 +1,7 @@
extern crate chrono;
extern crate gc;
extern crate rand;
extern crate serde_json;
extern crate chrono;
#[macro_use]
extern crate gc_derive;
@ -9,3 +9,64 @@ extern crate gc_derive;
pub mod exec;
pub mod js;
pub mod syntax;
use crate::exec::{Executor, Interpreter};
use crate::syntax::lexer::Lexer;
use crate::syntax::parser::Parser;
use wasm_bindgen::prelude::*;
#[wasm_bindgen]
extern "C" {
// Use `js_namespace` here to bind `console.log(..)` instead of just
// `log(..)`
#[wasm_bindgen(js_namespace = console)]
fn log(s: &str);
}
pub fn exec(src: String) {
let mut lexer = Lexer::new(&src);
lexer.lex().unwrap();
let tokens = lexer.tokens;
// Setup executor
let expr = Parser::new(tokens).parse_all().unwrap();
// print!("{:#?}", expr);
let mut engine: Interpreter = Executor::new();
let result = engine.run(&expr);
match result {
Ok(v) => print!("{}", v),
Err(v) => print!("Error: {}", v),
}
}
#[wasm_bindgen]
pub fn evaluate(src: &str) {
let mut lexer = Lexer::new(&src);
match lexer.lex() {
Ok(_v) => (),
Err(v) => log(&v.to_string()),
}
let tokens = lexer.tokens;
// Setup executor
let expr: syntax::ast::expr::Expr;
match Parser::new(tokens).parse_all() {
Ok(v) => {
expr = v;
}
Err(v) => {
log("parsing fail");
return;
}
}
let mut engine: Interpreter = Executor::new();
let result = engine.run(&expr);
match result {
Ok(v) => log(&v.to_string()),
Err(v) => log("Error"),
}
}

7
tests/js/test.js
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@ -1,2 +1,5 @@
var a = new String("ABC");
a.charCodeAt(-1);
function a() {
return "jase";
}
a();

25
webpack.config.js
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@ -0,0 +1,25 @@
const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const webpack = require("webpack");
const WasmPackPlugin = require("@wasm-tool/wasm-pack-plugin");
module.exports = {
entry: "./index.js",
output: {
path: path.resolve(__dirname, "dist"),
filename: "index.js"
},
plugins: [
new HtmlWebpackPlugin(),
new WasmPackPlugin({
crateDirectory: path.resolve(__dirname, ".")
}),
// Have this example work in Edge which doesn't ship `TextEncoder` or
// `TextDecoder` at this time.
new webpack.ProvidePlugin({
TextDecoder: ["text-encoding", "TextDecoder"],
TextEncoder: ["text-encoding", "TextEncoder"]
})
],
mode: "development"
};

3536
yarn.lock
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