Website Structure

Frontend-Learner/node_modules/@napi-rs/wasm-runtime/dist/fs-proxy.cjs

@@ -0,0 +1,264 @@
+'use strict';
+
+// @ts-check
+
+/**
+ * @param {unknown} value
+ */
+const getType = (value) => {
+  if (value === undefined) return 0
+  if (value === null) return 1
+  const t = typeof value;
+  if (t === 'boolean') return 2
+  if (t === 'number') return 3
+  if (t === 'string') return 4
+  if (t === 'object') return 6
+  if (t === 'bigint') return 9
+  return -1
+};
+
+/**
+ * @param {import('memfs').IFs} memfs
+ * @param {any} value
+ * @param {ReturnType<typeof getType>} type
+ * @returns {Uint8Array}
+ */
+const encodeValue = (memfs, value, type) => {
+  switch (type) {
+    case 0:
+    case 1:
+      return new Uint8Array(0)
+    case 2: {
+      const view = new Int32Array(1);
+      view[0] = value ? 1 : 0;
+      return new Uint8Array(view.buffer)
+    }
+    case 3: {
+      const view = new Float64Array(1);
+      view[0] = value;
+      return new Uint8Array(view.buffer)
+    }
+    case 4: {
+      const view = new TextEncoder().encode(value);
+      return view
+    }
+    case 6: {
+      function storeConstructor(obj, memfs, processed = new WeakSet()) {
+        if (!obj || typeof obj !== 'object') {
+          return
+        }
+
+        if (processed.has(obj)) {
+          return
+        }
+
+        processed.add(obj);
+
+        const [entry] =
+          Object.entries(memfs).filter(([_, v]) => v === obj.constructor)[0] ??
+          [];
+        if (entry) {
+          Object.defineProperty(obj, '__constructor__', {
+            configurable: true,
+            writable: true,
+            enumerable: true,
+            value: entry,
+          });
+        }
+
+        for (const value of Object.values(obj)) {
+          storeConstructor(value, memfs, processed);
+        }
+      }
+
+      storeConstructor(value, memfs);
+
+      const json = JSON.stringify(value, (_, value) => {
+        if (typeof value === 'bigint') {
+          return `BigInt(${String(value)})`
+        }
+        if (value instanceof Error) {
+          return {
+            ...value,
+            message: value.message,
+            stack: value.stack,
+            __error__: value.constructor.name,
+          }
+        }
+        return value
+      });
+      const view = new TextEncoder().encode(json);
+      return view
+    }
+    case 9: {
+      const view = new BigInt64Array(1);
+      view[0] = value;
+      return new Uint8Array(view.buffer)
+    }
+    case -1:
+    default:
+      throw new Error('unsupported data')
+  }
+};
+
+/**
+ * @param {typeof import('memfs')} memfs
+ * @param {Uint8Array} payload
+ * @param {number} type
+ * @returns {any}
+ */
+const decodeValue = (memfs, payload, type) => {
+  if (type === 0) return undefined
+  if (type === 1) return null
+  if (type === 2)
+    return Boolean(new Int32Array(payload.buffer, payload.byteOffset, 1)[0])
+  if (type === 3)
+    return new Float64Array(payload.buffer, payload.byteOffset, 1)[0]
+  if (type === 4) return new TextDecoder().decode(payload.slice())
+  if (type === 6) {
+    const obj = JSON.parse(
+      new TextDecoder().decode(payload.slice()),
+      (_key, value) => {
+        if (typeof value === 'string') {
+          const matched = value.match(/^BigInt\((-?\d+)\)$/);
+          if (matched && matched[1]) {
+            return BigInt(matched[1])
+          }
+        }
+        return value
+      },
+    );
+
+    function loadConstructor(obj, memfs, processed = new WeakSet()) {
+      if (!obj || typeof obj !== 'object') {
+        return
+      }
+
+      if (processed.has(obj)) {
+        return
+      }
+
+      processed.add(obj);
+
+      if (obj.__constructor__) {
+        const ctor = obj.__constructor__;
+        delete obj.__constructor__;
+        Object.setPrototypeOf(obj, memfs[ctor].prototype);
+      }
+
+      for (const value of Object.values(obj)) {
+        loadConstructor(value, memfs, processed);
+      }
+    }
+
+    loadConstructor(obj, memfs);
+
+    if (obj.__error__) {
+      const name = obj.__error__;
+      const ErrorConstructor = globalThis[name] || Error;
+      delete obj.__error__;
+      const err = new ErrorConstructor(obj.message);
+      Object.defineProperty(err, 'stack', {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: err.stack,
+      });
+      Object.defineProperty(err, Symbol.toStringTag, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: name,
+      });
+      for (const [k, v] of Object.entries(obj)) {
+        if (k === 'message' || k === 'stack') continue
+        err[k] = v;
+      }
+      return err
+    }
+    return obj
+  }
+  if (type === 9)
+    return new BigInt64Array(payload.buffer, payload.byteOffset, 1)[0]
+  throw new Error('unsupported data')
+};
+
+/**
+ * @param {import('memfs').IFs} fs
+ * @returns {(e: { data: { __fs__: { sab: Int32Array, type: keyof import('memfs').IFs, payload: any[] } } }) => void}
+ */
+// oxlint-disable-next-line no-unused-vars -- fixed in an upcoming release
+const createOnMessage = (fs) =>
+  function onMessage(e) {
+    if (e.data.__fs__) {
+      /**
+       * 0..4                    status(int32_t):        21(waiting) 0(success) 1(error)
+       * 5..8                    type(napi_valuetype):   0(undefined) 1(null) 2(boolean) 3(number) 4(string) 6(jsonstring) 9(bigint) -1(unsupported)
+       * 9..16                   payload_size(uint32_t)  <= 1024
+       * 16..16 + payload_size   payload_content
+       */
+      const { sab, type, payload } = e.data.__fs__;
+      const fn = fs[type];
+      try {
+        const ret = fn.apply(fs, payload);
+        const t = getType(ret);
+        Atomics.store(sab, 1, t);
+        const v = encodeValue(fs, ret, t);
+        Atomics.store(sab, 2, v.length);
+        new Uint8Array(sab.buffer).set(v, 16);
+        Atomics.store(sab, 0, 0); // success
+      } catch (/** @type {any} */ err) {
+        const t = getType(err);
+        Atomics.store(sab, 1, t);
+        const v = encodeValue(fs, err, t);
+        Atomics.store(sab, 2, v.length);
+        new Uint8Array(sab.buffer).set(v, 16);
+        Atomics.store(sab, 0, 1); // error
+      } finally {
+        Atomics.notify(sab, 0);
+      }
+    }
+  };
+
+/**
+ * @param {typeof import('memfs')} memfs
+ */
+const createFsProxy = (memfs) =>
+  new Proxy(
+    {},
+    {
+      get(_target, p, _receiver) {
+        /**
+         * @param {any[]} args
+         */
+        return function (...args) {
+          const sab = new SharedArrayBuffer(16 + 10240);
+          const i32arr = new Int32Array(sab);
+          Atomics.store(i32arr, 0, 21);
+
+          postMessage({
+            __fs__: {
+              sab: i32arr,
+              type: p,
+              payload: args,
+            },
+          });
+
+          Atomics.wait(i32arr, 0, 21);
+
+          const status = Atomics.load(i32arr, 0);
+          const type = Atomics.load(i32arr, 1);
+          const size = Atomics.load(i32arr, 2);
+          const content = new Uint8Array(sab, 16, size);
+          const value = decodeValue(memfs, content, type);
+          if (status === 1) {
+            throw value
+          }
+          return value
+        }
+      },
+    },
+  );
+
+exports.createFsProxy = createFsProxy;
+exports.createOnMessage = createOnMessage;

Frontend-Learner/node_modules/@napi-rs/wasm-runtime/fs-proxy.js

@@ -0,0 +1,259 @@
+// @ts-check
+
+/**
+ * @param {unknown} value
+ */
+const getType = (value) => {
+  if (value === undefined) return 0
+  if (value === null) return 1
+  const t = typeof value
+  if (t === 'boolean') return 2
+  if (t === 'number') return 3
+  if (t === 'string') return 4
+  if (t === 'object') return 6
+  if (t === 'bigint') return 9
+  return -1
+}
+
+/**
+ * @param {import('memfs').IFs} memfs
+ * @param {any} value
+ * @param {ReturnType<typeof getType>} type
+ * @returns {Uint8Array}
+ */
+const encodeValue = (memfs, value, type) => {
+  switch (type) {
+    case 0:
+    case 1:
+      return new Uint8Array(0)
+    case 2: {
+      const view = new Int32Array(1)
+      view[0] = value ? 1 : 0
+      return new Uint8Array(view.buffer)
+    }
+    case 3: {
+      const view = new Float64Array(1)
+      view[0] = value
+      return new Uint8Array(view.buffer)
+    }
+    case 4: {
+      const view = new TextEncoder().encode(value)
+      return view
+    }
+    case 6: {
+      function storeConstructor(obj, memfs, processed = new WeakSet()) {
+        if (!obj || typeof obj !== 'object') {
+          return
+        }
+
+        if (processed.has(obj)) {
+          return
+        }
+
+        processed.add(obj)
+
+        const [entry] =
+          Object.entries(memfs).filter(([_, v]) => v === obj.constructor)[0] ??
+          []
+        if (entry) {
+          Object.defineProperty(obj, '__constructor__', {
+            configurable: true,
+            writable: true,
+            enumerable: true,
+            value: entry,
+          })
+        }
+
+        for (const value of Object.values(obj)) {
+          storeConstructor(value, memfs, processed)
+        }
+      }
+
+      storeConstructor(value, memfs)
+
+      const json = JSON.stringify(value, (_, value) => {
+        if (typeof value === 'bigint') {
+          return `BigInt(${String(value)})`
+        }
+        if (value instanceof Error) {
+          return {
+            ...value,
+            message: value.message,
+            stack: value.stack,
+            __error__: value.constructor.name,
+          }
+        }
+        return value
+      })
+      const view = new TextEncoder().encode(json)
+      return view
+    }
+    case 9: {
+      const view = new BigInt64Array(1)
+      view[0] = value
+      return new Uint8Array(view.buffer)
+    }
+    case -1:
+    default:
+      throw new Error('unsupported data')
+  }
+}
+
+/**
+ * @param {typeof import('memfs')} memfs
+ * @param {Uint8Array} payload
+ * @param {number} type
+ * @returns {any}
+ */
+const decodeValue = (memfs, payload, type) => {
+  if (type === 0) return undefined
+  if (type === 1) return null
+  if (type === 2)
+    return Boolean(new Int32Array(payload.buffer, payload.byteOffset, 1)[0])
+  if (type === 3)
+    return new Float64Array(payload.buffer, payload.byteOffset, 1)[0]
+  if (type === 4) return new TextDecoder().decode(payload.slice())
+  if (type === 6) {
+    const obj = JSON.parse(
+      new TextDecoder().decode(payload.slice()),
+      (_key, value) => {
+        if (typeof value === 'string') {
+          const matched = value.match(/^BigInt\((-?\d+)\)$/)
+          if (matched && matched[1]) {
+            return BigInt(matched[1])
+          }
+        }
+        return value
+      },
+    )
+
+    function loadConstructor(obj, memfs, processed = new WeakSet()) {
+      if (!obj || typeof obj !== 'object') {
+        return
+      }
+
+      if (processed.has(obj)) {
+        return
+      }
+
+      processed.add(obj)
+
+      if (obj.__constructor__) {
+        const ctor = obj.__constructor__
+        delete obj.__constructor__
+        Object.setPrototypeOf(obj, memfs[ctor].prototype)
+      }
+
+      for (const value of Object.values(obj)) {
+        loadConstructor(value, memfs, processed)
+      }
+    }
+
+    loadConstructor(obj, memfs)
+
+    if (obj.__error__) {
+      const name = obj.__error__
+      const ErrorConstructor = globalThis[name] || Error
+      delete obj.__error__
+      const err = new ErrorConstructor(obj.message)
+      Object.defineProperty(err, 'stack', {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: err.stack,
+      })
+      Object.defineProperty(err, Symbol.toStringTag, {
+        configurable: true,
+        enumerable: false,
+        writable: true,
+        value: name,
+      })
+      for (const [k, v] of Object.entries(obj)) {
+        if (k === 'message' || k === 'stack') continue
+        err[k] = v
+      }
+      return err
+    }
+    return obj
+  }
+  if (type === 9)
+    return new BigInt64Array(payload.buffer, payload.byteOffset, 1)[0]
+  throw new Error('unsupported data')
+}
+
+/**
+ * @param {import('memfs').IFs} fs
+ * @returns {(e: { data: { __fs__: { sab: Int32Array, type: keyof import('memfs').IFs, payload: any[] } } }) => void}
+ */
+// oxlint-disable-next-line no-unused-vars -- fixed in an upcoming release
+export const createOnMessage = (fs) =>
+  function onMessage(e) {
+    if (e.data.__fs__) {
+      /**
+       * 0..4                    status(int32_t):        21(waiting) 0(success) 1(error)
+       * 5..8                    type(napi_valuetype):   0(undefined) 1(null) 2(boolean) 3(number) 4(string) 6(jsonstring) 9(bigint) -1(unsupported)
+       * 9..16                   payload_size(uint32_t)  <= 1024
+       * 16..16 + payload_size   payload_content
+       */
+      const { sab, type, payload } = e.data.__fs__
+      const fn = fs[type]
+      try {
+        const ret = fn.apply(fs, payload)
+        const t = getType(ret)
+        Atomics.store(sab, 1, t)
+        const v = encodeValue(fs, ret, t)
+        Atomics.store(sab, 2, v.length)
+        new Uint8Array(sab.buffer).set(v, 16)
+        Atomics.store(sab, 0, 0) // success
+      } catch (/** @type {any} */ err) {
+        const t = getType(err)
+        Atomics.store(sab, 1, t)
+        const v = encodeValue(fs, err, t)
+        Atomics.store(sab, 2, v.length)
+        new Uint8Array(sab.buffer).set(v, 16)
+        Atomics.store(sab, 0, 1) // error
+      } finally {
+        Atomics.notify(sab, 0)
+      }
+    }
+  }
+
+/**
+ * @param {typeof import('memfs')} memfs
+ */
+export const createFsProxy = (memfs) =>
+  new Proxy(
+    {},
+    {
+      get(_target, p, _receiver) {
+        /**
+         * @param {any[]} args
+         */
+        return function (...args) {
+          const sab = new SharedArrayBuffer(16 + 10240)
+          const i32arr = new Int32Array(sab)
+          Atomics.store(i32arr, 0, 21)
+
+          postMessage({
+            __fs__: {
+              sab: i32arr,
+              type: p,
+              payload: args,
+            },
+          })
+
+          Atomics.wait(i32arr, 0, 21)
+
+          const status = Atomics.load(i32arr, 0)
+          const type = Atomics.load(i32arr, 1)
+          const size = Atomics.load(i32arr, 2)
+          const content = new Uint8Array(sab, 16, size)
+          const value = decodeValue(memfs, content, type)
+          if (status === 1) {
+            throw value
+          }
+          return value
+        }
+      },
+    },
+  )

Frontend-Learner/node_modules/@napi-rs/wasm-runtime/package.json

@@ -0,0 +1,68 @@
+{
+  "name": "@napi-rs/wasm-runtime",
+  "version": "1.1.1",
+  "type": "module",
+  "description": "Runtime and polyfill for wasm targets",
+  "homepage": "https://napi.rs/",
+  "author": {
+    "name": "LongYinan",
+    "url": "https://github.com/Brooooooklyn"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/napi-rs/napi-rs.git",
+    "directory": "wasi-runtime"
+  },
+  "license": "MIT",
+  "publishConfig": {
+    "registry": "https://registry.npmjs.org/",
+    "access": "public"
+  },
+  "files": [
+    "runtime.cjs",
+    "runtime.js",
+    "fs-proxy.js",
+    "dist/*.cjs",
+    "dist/*.js"
+  ],
+  "devDependencies": {
+    "@rollup/plugin-alias": "^6.0.0",
+    "@rollup/plugin-commonjs": "^29.0.0",
+    "@rollup/plugin-inject": "^5.0.5",
+    "@rollup/plugin-json": "^6.1.0",
+    "@rollup/plugin-node-resolve": "^16.0.3",
+    "@rollup/plugin-replace": "^6.0.3",
+    "buffer": "^6.0.3",
+    "events": "^3.3.0",
+    "memfs": "^4.50.0",
+    "node-inspect-extracted": "^3.2.2",
+    "path-browserify": "^1.0.1",
+    "process": "^0.11.10",
+    "readable-stream": "^4.7.0",
+    "rollup": "^4.53.1",
+    "rollup-plugin-polyfill-node": "^0.13.0",
+    "tslib": "^2.8.1"
+  },
+  "dependencies": {
+    "@emnapi/core": "^1.7.1",
+    "@emnapi/runtime": "^1.7.1",
+    "@tybys/wasm-util": "^0.10.1"
+  },
+  "scripts": {
+    "build": "rollup -c rollup.config.js",
+    "test": "node --test"
+  },
+  "funding": {
+    "type": "github",
+    "url": "https://github.com/sponsors/Brooooooklyn"
+  },
+  "exports": {
+    ".": {
+      "import": "./runtime.js",
+      "require": "./runtime.cjs"
+    },
+    "./fs": {
+      "import": "./dist/fs.js"
+    }
+  }
+}

Frontend-Learner/node_modules/@napi-rs/wasm-runtime/runtime.cjs

@@ -0,0 +1,15 @@
+const { MessageHandler, instantiateNapiModuleSync, instantiateNapiModule } = require('@emnapi/core')
+const { getDefaultContext } = require('@emnapi/runtime')
+const { WASI } = require('@tybys/wasm-util')
+
+const { createFsProxy, createOnMessage } = require('./dist/fs-proxy.cjs')
+
+module.exports = {
+  MessageHandler,
+  instantiateNapiModule,
+  instantiateNapiModuleSync,
+  getDefaultContext,
+  WASI,
+  createFsProxy,
+  createOnMessage,
+}

Frontend-Learner/node_modules/@napi-rs/wasm-runtime/runtime.js

@@ -0,0 +1,8 @@
+export {
+  instantiateNapiModuleSync,
+  instantiateNapiModule,
+  MessageHandler,
+} from '@emnapi/core'
+export { getDefaultContext } from '@emnapi/runtime'
+export * from '@tybys/wasm-util'
+export { createOnMessage, createFsProxy } from './fs-proxy.js'