Some cleanup (#666)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,10 +1,9 @@
 ---
 name: "\U0001F41B Bug report"
 about: Create a report to help us improve
-title: ''
+title: ""
 labels: bug
-assignees: ''
+assignees: ""
-
 ---
 
 <!--
@@ -39,6 +38,7 @@ Running this code, `a` should be set to `10` and printed, but `a` is instead set
 -->
 
 **Build environment (please complete the following information):**
+
 - OS: [e.g. Fedora Linux]
 - Version: [e.g. 32]
 - Target triple: [e.g. x86_64-unknown-linux-gnu]

.github/ISSUE_TEMPLATE/custom.md

@@ -1,13 +1,13 @@
 ---
 name: Custom
 about: Open an issue in the repo that is neither a bug or a feature, such a new idea
-title: ''
+title: ""
-labels: ''
+labels: ""
-assignees: ''
+assignees: ""
-
 ---
 
 <!--
 Thank you for contributing to Boa! Please, let us know how can we help you.
 -->
+
 E.g.: I think we should improve the way the JavaScript interpreter works by...

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,10 +1,9 @@
 ---
 name: "\U0001F680 Feature request"
 about: Suggest a new ECMAScript feature to be implemented, or a new capability of the engine.
-title: ''
+title: ""
 labels: enhancement
-assignees: ''
+assignees: ""
-
 ---
 
 <!--

.github/PULL_REQUEST_TEMPLATE.md

@@ -6,6 +6,7 @@ information as you feel neccesary.
 This Pull Request fixes/closes #{issue_num}.
 
 It changes the following:
+
 -
 -
 -

.github/workflows/master.yml

@@ -16,17 +16,17 @@ jobs:
           override: true
           profile: minimal
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo index
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
@@ -38,13 +38,13 @@ jobs:
       - run: echo "<meta http-equiv=refresh content=0;url=boa/index.html>" > target/doc/index.html
       - run: mkdir target/doc_upload && mv target/doc target/doc_upload/doc
       - name: Upload documentation
-        uses: crazy-max/ghaction-github-pages@v1
+        uses: crazy-max/ghaction-github-pages@v2
         with:
           target_branch: gh-pages
           keep_history: true
           build_dir: target/doc_upload
         env:
-          GITHUB_PAT: ${{ secrets.PERSONAL_GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Run benchmark
         run: cargo bench -p Boa | tee output.txt
       - name: Store benchmark result
@@ -54,5 +54,4 @@ jobs:
           tool: "criterion"
           output-file-path: output.txt
           auto-push: true
-          github-token: ${{ secrets.PERSONAL_GITHUB_TOKEN }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
-

.github/workflows/pull_request.yml

@@ -12,17 +12,17 @@ jobs:
           override: true
           profile: minimal
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo index
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

.github/workflows/rust.yml

@@ -20,17 +20,17 @@ jobs:
           override: true
           profile: minimal
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo index
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
@@ -65,17 +65,17 @@ jobs:
           override: true
           profile: minimal
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo index
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
@@ -131,17 +131,17 @@ jobs:
           profile: minimal
           components: clippy
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo index
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
@@ -161,17 +161,17 @@ jobs:
           override: true
           profile: minimal
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo index
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

.github/workflows/security_audit.yml

@@ -1,7 +1,7 @@
 name: Security audit
 on:
   schedule:
-    - cron: '0 0 * * *'
+    - cron: "0 0 * * *"
 jobs:
   audit:
     runs-on: ubuntu-latest

.github/workflows/webassembly.yml

@@ -0,0 +1,51 @@
+on:
+  pull_request:
+    branches:
+      - master
+  push:
+    branches:
+      - master
+
+name: Webassembly demo
+
+jobs:
+  check_style:
+    name: Check webassembly demo style
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Check code formatting
+        uses: creyD/prettier_action@v3.0
+        with:
+          dry: true
+          prettier_options: --check .
+
+  build:
+    name: Build webassembly demo
+    runs-on: ubuntu-latest
+    env:
+      WASM_PACK_PATH: ~/.cargo/bin/wasm-pack
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          profile: minimal
+      - name: Install wasm-pack
+        run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh 
+      - name: Cache yarn build
+        uses: actions/cache@v2
+        with:
+          path: |
+            node_modules
+            target
+            boa_wasm/pkg
+          key: ${{ runner.os }}-yarn-build-target-${{ hashFiles('**/yarn.lock') }}
+      - uses: Borales/actions-yarn@v2.3.0
+        with:
+          cmd: install
+      - uses: Borales/actions-yarn@v2.3.0
+        with:
+          cmd: build

.prettierignore

@@ -0,0 +1,8 @@
+# Ignore artifacts:
+*.rs
+target
+node_modules
+boa/benches/bench_scripts/mini_js.js
+boa/benches/bench_scripts/clean_js.js
+boa_wasm/pkg
+dist

.vscode/launch.json

@@ -12,20 +12,14 @@
         "program": "${workspaceFolder}/target/debug/boa.exe"
       },
       "program": "${workspaceFolder}/target/debug/boa",
-      "args": [
+      "args": ["${workspaceFolder}/tests/js/test.js"],
-        "${workspaceFolder}/tests/js/test.js"
+      "sourceLanguages": ["rust"]
-      ],
-      "sourceLanguages": [
-        "rust"
-      ]
     },
     {
       "name": "(Windows) Launch",
       "type": "cppvsdbg",
       "request": "launch",
-      "args": [
+      "args": ["${workspaceFolder}/tests/js/test.js"],
-        "${workspaceFolder}/tests/js/test.js"
-      ],
       "program": "${workspaceFolder}/target/debug/boa.exe",
       "cwd": "${workspaceFolder}",
       "sourceFileMap": {
@@ -45,6 +39,6 @@
       "cwd": "${workspaceRoot}",
       "environment": [],
       "externalConsole": true
-    },
+    }
   ]
 }

.vscode/tasks.json

@@ -7,12 +7,7 @@
       "type": "process",
       "label": "Cargo Run",
       "command": "cargo",
-      "args": [
+      "args": ["run", "--bin", "boa", "./tests/js/test.js"],
-        "run",
-        "--bin",
-        "boa",
-        "./tests/js/test.js"
-      ],
       "group": {
         "kind": "build",
         "isDefault": true
@@ -30,12 +25,7 @@
       "type": "process",
       "label": "Cargo Run (Profiler)",
       "command": "cargo",
-      "args": [
+      "args": ["run", "--features", "Boa/profiler", "../tests/js/test.js"],
-        "run",
-        "--features",
-        "Boa/profiler",
-        "../tests/js/test.js"
-      ],
       "group": "build",
       "options": {
         "env": {
@@ -51,12 +41,7 @@
       "type": "process",
       "label": "Get Tokens",
       "command": "cargo",
-      "args": [
+      "args": ["run", "--", "-t=Debug", "./tests/js/test.js"],
-        "run",
-        "--",
-        "-t=Debug",
-        "./tests/js/test.js"
-      ],
       "group": "build",
       "presentation": {
         "clear": true
@@ -66,24 +51,17 @@
       "type": "process",
       "label": "Get AST",
       "command": "cargo",
-      "args": [
+      "args": ["run", "--", "-a=Debug", "./tests/js/test.js"],
-        "run",
-        "--",
-        "-a=Debug",
-        "./tests/js/test.js"
-      ],
       "group": "build",
       "presentation": {
         "clear": true
-      },
+      }
     },
     {
       "type": "process",
       "label": "Cargo Test",
       "command": "cargo",
-      "args": [
+      "args": ["test"],
-        "test"
-      ],
       "group": {
         "kind": "test",
         "isDefault": true
@@ -96,10 +74,7 @@
       "type": "process",
       "label": "Cargo Test Build",
       "command": "cargo",
-      "args": [
+      "args": ["test", "--no-run"],
-        "test",
-        "--no-run"
-      ],
       "group": "build"
     }
   ]

CODE_OF_CONDUCT.md

@@ -1,4 +1,3 @@
-
 # Contributor Covenant Code of Conduct
 
 ## Our Pledge
@@ -18,23 +17,23 @@ diverse, inclusive, and healthy community.
 Examples of behavior that contributes to a positive environment for our
 community include:
 
-* Demonstrating empathy and kindness toward other people
+- Demonstrating empathy and kindness toward other people
-* Being respectful of differing opinions, viewpoints, and experiences
+- Being respectful of differing opinions, viewpoints, and experiences
-* Giving and gracefully accepting constructive feedback
+- Giving and gracefully accepting constructive feedback
-* Accepting responsibility and apologizing to those affected by our mistakes,
+- Accepting responsibility and apologizing to those affected by our mistakes,
   and learning from the experience
-* Focusing on what is best not just for us as individuals, but for the
+- Focusing on what is best not just for us as individuals, but for the
   overall community
 
 Examples of unacceptable behavior include:
 
-* The use of sexualized language or imagery, and sexual attention or
+- The use of sexualized language or imagery, and sexual attention or
   advances of any kind
-* Trolling, insulting or derogatory comments, and personal or political attacks
+- Trolling, insulting or derogatory comments, and personal or political attacks
-* Public or private harassment
+- Public or private harassment
-* Publishing others' private information, such as a physical or email
+- Publishing others' private information, such as a physical or email
   address, without their explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
+- Other conduct which could reasonably be considered inappropriate in a
   professional setting
 
 ## Enforcement Responsibilities
@@ -127,4 +126,3 @@ enforcement ladder](https://github.com/mozilla/diversity).
 For answers to common questions about this code of conduct, see the FAQ at
 https://www.contributor-covenant.org/faq. Translations are available at
 https://www.contributor-covenant.org/translations.
-

Cargo.lock

@@ -67,15 +67,15 @@ dependencies = [
 
 [[package]]
 name = "autocfg"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8aac770f1885fd7e387acedd76065302551364496e46b3dd00860b2f8359b9d"
+checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
 [[package]]
 name = "base64"
-version = "0.11.0"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b41b7ea54a0c9d92199de89e20e58d49f02f8e699814ef3fdf266f6f748d15c7"
+checksum = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff"
 
 [[package]]
 name = "bitflags"
@@ -249,6 +249,16 @@ dependencies = [
  "itertools",
 ]
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09ee0cc8804d5393478d743b035099520087a5186f3b93fa58cec08fa62407b6"
+dependencies = [
+ "cfg-if",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-deque"
 version = "0.7.3"
@@ -275,17 +285,6 @@ dependencies = [
  "scopeguard",
 ]
 
-[[package]]
-name = "crossbeam-queue"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "774ba60a54c213d409d5353bda12d49cd68d14e45036a285234c8d6f91f92570"
-dependencies = [
- "cfg-if",
- "crossbeam-utils",
- "maybe-uninit",
-]
-
 [[package]]
 name = "crossbeam-utils"
 version = "0.7.2"
@@ -357,9 +356,9 @@ dependencies = [
 
 [[package]]
 name = "fs_extra"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f2a4a2034423744d2cc7ca2068453168dcdb82c438419e639a26bd87839c674"
+checksum = "2022715d62ab30faffd124d40b76f4134a550a87792276512b18d63272333394"
 
 [[package]]
 name = "gc"
@@ -390,7 +389,7 @@ checksum = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi",
+ "wasi 0.9.0+wasi-snapshot-preview1",
 ]
 
 [[package]]
@@ -743,9 +742,9 @@ dependencies = [
 
 [[package]]
 name = "rayon"
-version = "1.3.1"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62f02856753d04e03e26929f820d0a0a337ebe71f849801eea335d464b349080"
+checksum = "cfd016f0c045ad38b5251be2c9c0ab806917f82da4d36b2a327e5166adad9270"
 dependencies = [
  "autocfg",
  "crossbeam-deque",
@@ -755,12 +754,12 @@ dependencies = [
 
 [[package]]
 name = "rayon-core"
-version = "1.7.1"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e92e15d89083484e11353891f1af602cc661426deb9564c298b270c726973280"
+checksum = "91739a34c4355b5434ce54c9086c5895604a9c278586d1f1aa95e04f66b525a0"
 dependencies = [
+ "crossbeam-channel",
  "crossbeam-deque",
- "crossbeam-queue",
  "crossbeam-utils",
  "lazy_static",
  "num_cpus",
@@ -774,9 +773,9 @@ checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
 
 [[package]]
 name = "redox_users"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09b23093265f8d200fa7b4c2c76297f47e681c655f6f1285a8780d6a022f7431"
+checksum = "de0737333e7a9502c789a36d7c7fa6092a49895d4faa31ca5df163857ded2e9d"
 dependencies = [
  "getrandom",
  "redox_syscall",
@@ -812,9 +811,9 @@ checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
 
 [[package]]
 name = "rust-argon2"
-version = "0.7.0"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2bc8af4bda8e1ff4932523b94d3dd20ee30a87232323eda55903ffd71d2fb017"
+checksum = "9dab61250775933275e84053ac235621dfb739556d5c54a2f2e9313b7cf43a19"
 dependencies = [
  "base64",
  "blake2b_simd",
@@ -956,9 +955,9 @@ checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
 [[package]]
 name = "structopt"
-version = "0.3.16"
+version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de5472fb24d7e80ae84a7801b7978f95a19ec32cb1876faea59ab711eb901976"
+checksum = "6cc388d94ffabf39b5ed5fadddc40147cb21e605f53db6f8f36a625d27489ac5"
 dependencies = [
  "clap",
  "lazy_static",
@@ -967,9 +966,9 @@ dependencies = [
 
 [[package]]
 name = "structopt-derive"
-version = "0.4.9"
+version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e0eb37335aeeebe51be42e2dc07f031163fbabfa6ac67d7ea68b5c2f68d5f99"
+checksum = "5e2513111825077552a6751dfad9e11ce0fba07d7276a3943a037d7e93e64c5f"
 dependencies = [
  "heck",
  "proc-macro-error",
@@ -980,9 +979,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.38"
+version = "1.0.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e69abc24912995b3038597a7a593be5053eb0fb44f3cc5beec0deb421790c1f4"
+checksum = "891d8d6567fe7c7f8835a3a98af4208f3846fba258c1bc3c31d6e506239f11f9"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1021,11 +1020,12 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.1.43"
+version = "0.1.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
+checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
 dependencies = [
  "libc",
+ "wasi 0.10.0+wasi-snapshot-preview1",
  "winapi",
 ]
 
@@ -1098,6 +1098,12 @@ version = "0.9.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 
+[[package]]
+name = "wasi"
+version = "0.10.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
+
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.67"

Makefile

@@ -1,14 +0,0 @@
-docker-build:
-	docker build --tag boa .
-
-docker-container:
-	docker create --tty --interactive \
-		--name boa \
-		--hostname boa \
-		--volume ${PWD}/:/usr/src/myapp \
-		--publish 9228:9228 \
-		boa
-
-docker-clean:
-	docker rm boa || echo "no container"
-	docker rmi boa || echo "no image"

README.md

@@ -19,7 +19,6 @@ Currently, it has support for some of the language.
 [build_badge]: https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fboa-dev%2Fboa%2Fbadge&style=flat
 [build_link]: https://actions-badge.atrox.dev/boa-dev/boa/goto
 
-
 ## Live Demo (WASM)
 
 <https://boa-dev.github.io/boa/>

boa/benches/README.md

@@ -1,6 +1,7 @@
 # Boa Benchmarks.
 
 We divide the benchmarks in 3 sections:
+
 - Full engine benchmarks (lexing + parsing + realm creation + execution)
 - Execution benchmarks
 - Parsing benchmarks (lexing + parse - these are tightly coupled so must be benchmarked together)

boa/benches/bench_scripts/arithmetic_operations.js

@@ -1 +1 @@
-((2 + 2) ** 3 / 100 - 5 ** 3 * -1000) ** 2 + 100 - 8
+((2 + 2) ** 3 / 100 - 5 ** 3 * -1000) ** 2 + 100 - 8;

boa/benches/bench_scripts/array_create.js

@@ -1,7 +1,7 @@
 (function () {
   let testArr = [];
   for (let a = 0; a <= 500; a++) {
-        testArr[a] = ('p' + a);
+    testArr[a] = "p" + a;
   }
 
   return testArr;

boa/benches/bench_scripts/array_pop.js

@@ -1,20 +1,217 @@
 (function () {
-    let testArray = [83, 93, 27, 29, 2828, 234, 23, 56, 32, 56, 67, 77, 32,
+  let testArray = [
-                     45, 93, 17, 28, 83, 62, 99, 36, 28, 93, 27, 29, 2828,
+    83,
-                     234, 23, 56, 32, 56, 67, 77, 32, 45, 93, 17, 28, 83, 62,
+    93,
-                     99, 36, 28, 93, 27, 29, 2828, 234, 23, 56, 32, 56, 67,
+    27,
-                     77, 32, 45, 93, 17, 28, 83, 62, 99, 36, 28, 93, 27, 29,
+    29,
-                     2828, 234, 23, 56, 32, 56, 67, 77, 32, 45, 93, 17, 28,
+    2828,
-                     83, 62, 99, 36, 28, 93, 27, 29, 2828, 234, 23, 56, 32,
+    234,
-                     56, 67, 77, 32, 45, 93, 17, 28, 83, 62, 99, 36, 28, 93,
+    23,
-                     27, 29, 2828, 234, 23, 56, 32, 56, 67, 77, 32, 45, 93,
+    56,
-                     17, 28, 83, 62, 99, 36, 28, 93, 27, 29, 2828, 234, 23,
+    32,
-                     56, 32, 56, 67, 77, 32, 45, 93, 17, 28, 83, 62, 99, 36,
+    56,
-                     28, 93, 27, 29, 2828, 234, 23, 56, 32, 56, 67, 77, 32,
+    67,
-                     45, 93, 17, 28, 83, 62, 99, 36, 28, 93, 27, 29, 2828, 234,
+    77,
-                     23, 56, 32, 56, 67, 77, 32, 45, 93, 17, 28, 83, 62, 99,
+    32,
-                     36, 28, 93, 27, 29, 2828, 234, 23, 56, 32, 56, 67, 77, 32,
+    45,
-                     45, 93, 17, 28, 83, 62, 99, 36, 28];
+    93,
+    17,
+    28,
+    83,
+    62,
+    99,
+    36,
+    28,
+    93,
+    27,
+    29,
+    2828,
+    234,
+    23,
+    56,
+    32,
+    56,
+    67,
+    77,
+    32,
+    45,
+    93,
+    17,
+    28,
+    83,
+    62,
+    99,
+    36,
+    28,
+    93,
+    27,
+    29,
+    2828,
+    234,
+    23,
+    56,
+    32,
+    56,
+    67,
+    77,
+    32,
+    45,
+    93,
+    17,
+    28,
+    83,
+    62,
+    99,
+    36,
+    28,
+    93,
+    27,
+    29,
+    2828,
+    234,
+    23,
+    56,
+    32,
+    56,
+    67,
+    77,
+    32,
+    45,
+    93,
+    17,
+    28,
+    83,
+    62,
+    99,
+    36,
+    28,
+    93,
+    27,
+    29,
+    2828,
+    234,
+    23,
+    56,
+    32,
+    56,
+    67,
+    77,
+    32,
+    45,
+    93,
+    17,
+    28,
+    83,
+    62,
+    99,
+    36,
+    28,
+    93,
+    27,
+    29,
+    2828,
+    234,
+    23,
+    56,
+    32,
+    56,
+    67,
+    77,
+    32,
+    45,
+    93,
+    17,
+    28,
+    83,
+    62,
+    99,
+    36,
+    28,
+    93,
+    27,
+    29,
+    2828,
+    234,
+    23,
+    56,
+    32,
+    56,
+    67,
+    77,
+    32,
+    45,
+    93,
+    17,
+    28,
+    83,
+    62,
+    99,
+    36,
+    28,
+    93,
+    27,
+    29,
+    2828,
+    234,
+    23,
+    56,
+    32,
+    56,
+    67,
+    77,
+    32,
+    45,
+    93,
+    17,
+    28,
+    83,
+    62,
+    99,
+    36,
+    28,
+    93,
+    27,
+    29,
+    2828,
+    234,
+    23,
+    56,
+    32,
+    56,
+    67,
+    77,
+    32,
+    45,
+    93,
+    17,
+    28,
+    83,
+    62,
+    99,
+    36,
+    28,
+    93,
+    27,
+    29,
+    2828,
+    234,
+    23,
+    56,
+    32,
+    56,
+    67,
+    77,
+    32,
+    45,
+    93,
+    17,
+    28,
+    83,
+    62,
+    99,
+    36,
+    28,
+  ];
 
   while (testArray.length > 0) {
     testArray.pop();

boa/benches/bench_scripts/boolean_object_access.js

@@ -1,7 +1,7 @@
 new Boolean(
   !new Boolean(
     new Boolean(
-            !(new Boolean(false).valueOf()) && (new Boolean(true).valueOf())
+      !new Boolean(false).valueOf() && new Boolean(true).valueOf()
-        ).valueOf()
     ).valueOf()
   ).valueOf()
+).valueOf();

boa/benches/bench_scripts/hello_world.js

@@ -1 +1,2 @@
-let foo = 'hello world!'; foo;
+let foo = "hello world!";
+foo;

boa/benches/bench_scripts/number_object_access.js

@@ -1,7 +1,5 @@
 new Number(
   new Number(
-        new Number(
+    new Number(new Number(100).valueOf() - 10.5).valueOf() + 100
-            new Number(100).valueOf() - 10.5
-        ).valueOf() + 100
   ).valueOf() * 1.6
-)
+);

boa/benches/bench_scripts/regexp.js

@@ -1,5 +1,5 @@
 (function () {
-    let regExp = new RegExp('hello', 'i');
+  let regExp = new RegExp("hello", "i");
 
   return regExp.test("Hello World");
 })();

boa/benches/bench_scripts/regexp_creation.js

@@ -1,5 +1,5 @@
 (function () {
-    let regExp = new RegExp('hello', 'i');
+  let regExp = new RegExp("hello", "i");
 
   return regExp;
 })();

boa/benches/bench_scripts/string_object_access.js

@@ -1,7 +1,7 @@
 new String(
   new String(
     new String(
-            new String('Hello').valueOf() + new String(", world").valueOf()
+      new String("Hello").valueOf() + new String(", world").valueOf()
-        ).valueOf() + '!'
+    ).valueOf() + "!"
-    ).valueOf()
   ).valueOf()
+).valueOf();

boa/src/syntax/parser/tests.rs

@@ -13,7 +13,7 @@ use crate::syntax::ast::{
 
 /// Checks that the given JavaScript string gives the expected expression.
 #[allow(clippy::unwrap_used)]
-// TODO: #[track_caller]: https://github.com/rust-lang/rust/issues/47809
+#[track_caller]
 pub(super) fn check_parser<L>(js: &str, expr: L)
 where
     L: Into<Box<[Node]>>,
@@ -27,7 +27,7 @@ where
 }
 
 /// Checks that the given javascript string creates a parse error.
-// TODO: #[track_caller]: https://github.com/rust-lang/rust/issues/47809
+#[track_caller]
 pub(super) fn check_invalid(js: &str) {
     assert!(Parser::new(js.as_bytes()).parse_all().is_err());
 }

docs/debugging.md

@@ -23,14 +23,17 @@ To print the tokens to stdout, you can use the `boa_cli` command-line flag
 `--dump-tokens` or `-t`, which can optionally take a format type. Supports
 these formats: `Debug`, `Json`, `JsonPretty`. By default it is the `Debug`
 format.
+
 ```bash
 cargo run -- test.js --dump-tokens # token dump format is Debug by default.
 ```
 
 or with interactive mode (REPL):
+
 ```bash
 cargo run -- --dump-tokens # token dump format is Debug by default.
 ```
+
 Seeing the order of tokens can be a big help to understanding what the parser
 is working with.
 
@@ -45,11 +48,13 @@ format type. Supports these formats: `Debug`, `Json`, `JsonPretty`. By default
 it is the `Debug` format.
 
 Dumping the AST of a file:
+
 ```bash
 cargo run -- test.js --dump-ast # AST dump format is Debug by default.
 ```
 
 or with interactive mode (REPL):
+
 ```bash
 cargo run -- --dump-ast # AST dump format is Debug by default.
 ```

docs/profiling.md

@@ -57,7 +57,6 @@ This is the same as above except instead of calling `$ crox my_trace` you call `
 +---------------------------------------+-----------+-----------------+----------+------------+
 ```
 
-
 ## More Info
 
 - https://blog.rust-lang.org/inside-rust/2020/02/25/intro-rustc-self-profile.html

index.js

@@ -63,6 +63,6 @@ function inputHandler(evt) {
     p.textContent = `> ${result}`;
   } catch (err) {
     console.error(err);
-    p.innerHTML = `<span style="color:red">${err}</span>`
+    p.innerHTML = `<span style="color:red">${err}</span>`;
   }
 }

package.json

@@ -5,15 +5,16 @@
   },
   "devDependencies": {
     "@wasm-tool/wasm-pack-plugin": "^1.3.1",
-    "bootstrap": "^4.5.0",
+    "bootstrap": "^4.5.2",
     "clean-webpack-plugin": "^3.0.0",
-    "copy-webpack-plugin": "^5.1.1",
+    "copy-webpack-plugin": "^6.0.3",
-    "css-loader": "^3.6.0",
+    "css-loader": "^4.2.2",
     "file-loader": "^6.0.0",
     "html-webpack-plugin": "^4.3.0",
+    "prettier": "2.1.1",
     "style-loader": "^1.2.1",
     "text-encoding": "^0.7.0",
-    "webpack": "^4.43.0",
+    "webpack": "^4.44.1",
     "webpack-cli": "^3.3.12",
     "webpack-dev-server": "^3.11.0"
   },

webpack.config.js

@@ -8,11 +8,11 @@ const WasmPackPlugin = require("@wasm-tool/wasm-pack-plugin");
 module.exports = {
   entry: {
     app: "./index.js",
-    "editor.worker": 'monaco-editor/esm/vs/editor/editor.worker.js',
+    "editor.worker": "monaco-editor/esm/vs/editor/editor.worker.js",
-    "json.worker": 'monaco-editor/esm/vs/language/json/json.worker',
+    "json.worker": "monaco-editor/esm/vs/language/json/json.worker",
-    "css.worker": 'monaco-editor/esm/vs/language/css/css.worker',
+    "css.worker": "monaco-editor/esm/vs/language/css/css.worker",
-    "html.worker": 'monaco-editor/esm/vs/language/html/html.worker',
+    "html.worker": "monaco-editor/esm/vs/language/html/html.worker",
-    "ts.worker": 'monaco-editor/esm/vs/language/typescript/ts.worker',
+    "ts.worker": "monaco-editor/esm/vs/language/typescript/ts.worker",
   },
   output: {
     path: path.resolve(__dirname, "dist"),
@@ -20,14 +20,13 @@ module.exports = {
   },
   plugins: [
     new CleanWebpackPlugin(),
-    new HtmlWebpackPlugin({
+    new HtmlWebpackPlugin({ template: "index.html" }),
-      template: "index.html",
-    }),
     new WasmPackPlugin({
       crateDirectory: path.resolve(__dirname, "./boa_wasm/"),
       outDir: path.resolve(__dirname, "./boa_wasm/pkg/"),
     }),
-    new CopyWebpackPlugin([
+    new CopyWebpackPlugin({
+      patterns: [
         {
           from: "./assets/*",
           to: ".",
@@ -36,7 +35,8 @@ module.exports = {
           from: "./node_modules/bootstrap/dist/css/bootstrap.min.css",
           to: "./assets",
         },
-    ]),
+      ],
+    }),
     // Have this example work in Edge which doesn't ship `TextEncoder` or
     // `TextDecoder` at this time.
     new webpack.ProvidePlugin({