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src/wasm

Frontend glue for the Rust→WASM word matcher (crates/wasm-matcher).

  • matcherLoader.ts — synchronous, cached initSync loader over the base64-embedded binary; throws on failure (no JS fallback — a browser without WASM is unsupported by design).
  • generated/ — produced by bun run wasm (wasm-bindgen glue + .wasm + matcher-inline.ts base64 payload). Gitignored; rebuild before compile/build.

matcherLoader runs only in the background service worker (entrypoints/background.ts): a content script lives in the host page's isolated world and inherits the page CSP, so on sites without wasm-unsafe-eval (GitHub, X, …) new WebAssembly.Module throws CompileError. The worker must also opt into content_security_policy.extension_pages with 'wasm-unsafe-eval'; MV3's default script-src 'self' is not enough for initSync. Content scripts reach the matcher over messaging through src/content-scripts/matcherFacade.ts, which parses the wordsList into active/deleted sets and skips re-syncing the worker when they are unchanged.