create boa-wasm package (#352)

Cargo.lock

@@ -12,7 +12,6 @@ dependencies = [
  "regex",
  "serde",
  "serde_json",
- "wasm-bindgen",
 ]
 
 [[package]]
@@ -65,6 +64,14 @@ dependencies = [
  "structopt",
 ]
 
+[[package]]
+name = "boa_wasm"
+version = "0.1.0"
+dependencies = [
+ "Boa",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "bstr"
 version = "0.2.12"

Cargo.toml

@@ -2,6 +2,7 @@
 members = [
     "boa",
     "boa_cli",
+    "boa_wasm",
 ]
 
 # The release profile, used for `cargo build`.

boa/Cargo.toml

@@ -12,7 +12,6 @@ edition = "2018"
 
 [features]
 serde-ast = ["serde"]
-default = ["wasm-bindgen"]
 
 [dependencies]
 gc = "0.3.3"
@@ -22,7 +21,6 @@ rand = "0.7.3"
 regex = "1.3.6"
 
 # Optional Dependencies
-wasm-bindgen = { version = "0.2.60", optional = true }
 serde = { version = "1.0.106", features = ["derive"], optional = true }
 
 [dev-dependencies]

boa/src/lib.rs

@@ -38,11 +38,6 @@ pub mod environment;
 pub mod exec;
 pub mod realm;
 pub mod syntax;
-#[cfg(feature = "wasm-bindgen")]
-mod wasm;
-
-#[cfg(feature = "wasm-bindgen")]
-pub use crate::wasm::*;
 use crate::{
     builtins::value::ResultValue,
     exec::{Executor, Interpreter},

boa_cli/Cargo.toml

@@ -11,7 +11,7 @@ exclude = ["../.vscode/*", "../Dockerfile", "../Makefile", "../.editorConfig"]
 edition = "2018"
 
 [dependencies]
-Boa = { path = "../boa", features = ["serde-ast"], default-features = false }
+Boa = { path = "../boa", features = ["serde-ast"] }
 structopt = "0.3.13"
 
 [target.x86_64-unknown-linux-gnu.dependencies]

boa_wasm/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "boa_wasm"
+version = "0.1.0"
+authors = ["Jason Williams <jase.williams@gmail.com>"]
+description = "Boa is a Javascript lexer, parser and Just-in-Time compiler written in Rust. Currently, it has support for some of the language."
+repository = "https://github.com/jasonwilliams/boa"
+keywords = ["javascript", "compiler", "lexer", "parser", "js"]
+categories = ["wasm"]
+license = "Unlicense/MIT"
+exclude = ["../.vscode/*", "../Dockerfile", "../Makefile", "../.editorConfig"]
+edition = "2018"
+
+[dependencies]
+Boa = { path = "../boa" }
+wasm-bindgen = { version = "0.2.60" }
+
+[lib]
+crate-type = ["cdylib", "lib"]
+name = "boa_wasm"
+bench = false

boa_wasm/src/lib.rs

@@ -1,4 +1,4 @@
-use crate::{
+use boa::{
     exec::{Executor, Interpreter},
     realm::Realm,
     syntax::{ast::node::Node, lexer::Lexer, parser::Parser},

index.js

@@ -1,7 +1,7 @@
 // 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("./boa/pkg");
+const rust = import("./boa_wasm/pkg");
 import * as monaco from "monaco-editor";
 
 self.MonacoEnvironment = {

webpack.config.js

@@ -18,8 +18,8 @@ module.exports = {
       template: "index.html",
     }),
     new WasmPackPlugin({
-      crateDirectory: path.resolve(__dirname, "./boa/"),
+      crateDirectory: path.resolve(__dirname, "./boa_wasm/"),
-      outDir: path.resolve(__dirname, "./boa/pkg/"),
+      outDir: path.resolve(__dirname, "./boa_wasm/pkg/"),
     }),
     new CopyWebpackPlugin([
       {