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services/web/frontend/js/features/source-editor/hunspell/wasm/README.md

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+# Hunspell
+
+The files in this directory are:
+
+* `hunspell.wasm`: [Hunspell](https://github.com/hunspell/hunspell) compiled to WebAssembly using Emscripten, via the [build.sh](../build.sh) script.
+* `hunspell.mjs`: a JavaScript wrapper for the WebAssembly module, generated by Emscripten.
+* `hunspell.d.ts`: manually-created types for the exports from the JavaScript module.
+
+Note: To speed up compilation on ARM architecture (e.g. Apple M1), add `-arm64` to the Docker image tag in `Dockerfile`.

services/web/frontend/js/features/source-editor/hunspell/wasm/hunspell.d.ts

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+/* eslint no-dupe-class-members: 0 */
+
+declare class Hunspell {
+  cwrap(
+    method: 'Hunspell_create',
+    output: string,
+    input: string[]
+  ): (affPtr: number, dicPtr: number) => number
+
+  cwrap(
+    method: 'Hunspell_destroy',
+    output: string,
+    input: string[]
+  ): (spellPtr: number) => number
+
+  cwrap(
+    method: 'Hunspell_spell',
+    output: string,
+    input: string[]
+  ): (spellPtr: number, wordPtr: number) => number
+
+  cwrap(
+    method: 'Hunspell_suggest',
+    output: string,
+    input: string[]
+  ): (spellPtr: number, suggestionListPtr: number, wordPtr: number) => number
+
+  cwrap(
+    method: 'Hunspell_add_dic',
+    output: string,
+    input: string[]
+  ): (spellPtr: number, wordPtr: number) => number
+
+  cwrap(
+    method: 'Hunspell_add',
+    output: string,
+    input: string[]
+  ): (spellPtr: number, wordPtr: number) => number
+
+  cwrap(
+    method: 'Hunspell_remove',
+    output: string,
+    input: string[]
+  ): (spellPtr: number, wordPtr: number) => number
+
+  cwrap(
+    method: 'Hunspell_free_list',
+    output: string,
+    input: string[]
+  ): (spellPtr: number, suggestionListPtr: number, n: number) => number
+
+  stringToNewUTF8(input: string): number
+  UTF8ToString(input: number): string
+  _malloc(length: number): number
+  _free(ptr: number): void
+  getValue(ptr: number, type: string): number
+  FS: {
+    mkdir(path: string): void
+    mount(type: any, opts: Record<string, any>, dir: string): void
+    writeFile(
+      path: string,
+      data: string | ArrayBufferView,
+      opts?: { flags?: string }
+    )
+  }
+
+  MEMFS: any
+}
+
+declare const factory = async (options?: Record<string, any>) =>
+  new Hunspell(options)
+
+export default factory