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quakequake
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Merge pull request #55 from joii2020/dev.wasm
Support WASM
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‎.github/workflows/wasm.yml‎

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name: WASM
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on:
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pull_request:
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paths: [wasm/**]
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push:
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paths: [wasm/**]
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jobs:
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examples:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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with:
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submodules: recursive
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- uses: actions/cache@v4
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with:
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path: |
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~/.cargo/bin/
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~/.cargo/registry/index/
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~/.cargo/registry/cache/
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~/.cargo/git/db/
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target/
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key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
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- uses: pnpm/action-setup@v4
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with:
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version: 10
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run_install: false
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- uses: actions/setup-node@v4
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with:
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node-version: 20
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cache: 'pnpm'
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cache-dependency-path: '**/pnpm-lock.yaml'
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- name: Install wasm-pack
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run: which wasm-pack >/dev/null 2>&1 || cargo install wasm-pack
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- name: Install ckb-debugger
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run: which ckb-debugger >/dev/null 2>&1 || cargo install ckb-debugger
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- name: wasm-test
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run: cd wasm && make check
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- name: wasm-test
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run: cd wasm && make test
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- name: build-web
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run: cd wasm && make build-web

‎wasm/.gitignore‎

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/target
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**/node_modules
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/pkg-*
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examples/pkg-*
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tests/ckb-contract/dist/

‎wasm/Cargo.lock‎

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‎wasm/Cargo.toml‎

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[package]
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name = "sparse-merkle-tree-wasm"
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version = "0.1.0"
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edition = "2024"
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[lib]
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crate-type = ["cdylib"]
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[dependencies]
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sparse-merkle-tree = { path = "../", default-features = false, features = [ "std", "with-blake2b-ref" ] }
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wasm-bindgen = "0.2.100"
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web-sys = { version = "0.3.77", features = [ "console" ] }
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js-sys = "0.3.77"
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hex = "0.4.3"
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blake2b-ref = "0.3.1"

‎wasm/Makefile‎

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default: build-nodejs
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check:
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cargo fmt
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cargo clippy
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cargo check
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build-nodejs:
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wasm-pack build --target nodejs --out-dir pkg-nodejs --dev
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build-web:
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wasm-pack build --target web --out-dir pkg-web
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build-test: build-nodejs
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cd tests && pnpm install
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cd tests/ckb-contract && pnpm install
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cd tests && pnpm add ../pkg-nodejs
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cd tests/ckb-contract && pnpm build
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test: build-test
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cd tests && pnpm jest
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run-example: build-web
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cp -r pkg-web/ examples/
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pnpm dlx http-server ./examples/ -p 8000
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install-tools:
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which wasm-pack >/dev/null 2>&1 || cargo install wasm-pack
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which ckb-debugger >/dev/null 2>&1 || cargo install ckb-debugger
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clean:
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cargo clean
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rm -rf pkg-nodejs pkg-web

‎wasm/README.md‎

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# Sparse Merkle Tree WASM
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This project compiles the Rust implementation of a Sparse Merkle Tree into WebAssembly (WASM), making it accessible for JavaScript/TypeScript applications.
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## Build
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Currently, both Node.js and web environments are supported. Developers can choose the appropriate build target:
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```sh
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make build-nodejs
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```
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or
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```sh
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make build-web
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```
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## Run Web Example
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```sh
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make run-example
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```
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The demo page does not include a UI. Instead, it automatically runs SMT-related scripts after loading.
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## Usage
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* **Contract test example**: See line 48 in `tests/tests/smt-ckb.test.ts`
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* **Web example**: See line 12 in `examples/index.html`

‎wasm/examples/index.html‎

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<html>
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<head>
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<meta content="text/html;charset=utf-8" http-equiv="Content-Type" />
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<title>Test SMT</title>
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</head>
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<body>
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<script type="module">
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import init, { ckb_blake2b_256, CkbSmt, verify_proof } from '../pkg-web/sparse_merkle_tree_wasm.js';
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async function run() {
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await init();
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const smt = new CkbSmt();
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const k1 = ckb_blake2b_256("aaa");
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const v1 = ckb_blake2b_256("123aa");
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const k2 = ckb_blake2b_256("bbb");
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const v2 = ckb_blake2b_256(new Uint8Array([0xaa, 0xbb, 0xcc]));
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const k3 = ckb_blake2b_256("ccc");
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const v3 = ckb_blake2b_256("232cc");
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smt.update(k1, v1);
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smt.update(k2, v2);
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const root2 = smt.root();
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smt.update(k3, v3);
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const root3 = smt.root();
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let proof = smt.get_proof([k1, k3]);
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console.log(verify_proof(root2, proof, [[k1, v1], [k3, new Uint8Array(32)]]));
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console.log(verify_proof(root3, proof, [[k1, v1], [k3, v3]]));
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}
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run();
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</script>
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</body>
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</html>

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