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@papyrus-sdk/engine-rust

v0.1.0

Published

Adapter incremental de PDF para o Papyrus. O PDF.js continua renderizando o canvas e a camada visual; o core Rust/WASM assume extração de texto e busca.

Readme

@papyrus-sdk/engine-rust

Adapter incremental de PDF para o Papyrus. O PDF.js continua renderizando o canvas e a camada visual; o core Rust/WASM assume extração de texto e busca.

Uso

import { PDFJSEngine } from "@papyrus-sdk/engine-pdfjs";
import {
  RustDocumentEngine,
  createBundledWasmRustRuntimeFactory,
} from "@papyrus-sdk/engine-rust";

const engine = new RustDocumentEngine({
  pdfEngine: new PDFJSEngine(),
  runtimeFactory: createBundledWasmRustRuntimeFactory(),
});

O módulo WASM é carregado sob demanda na primeira chamada a load. Para regenerar os artefatos depois de alterar o crate:

pnpm --filter @papyrus-sdk/engine-rust build:wasm
pnpm --filter @papyrus-sdk/engine-rust build

Esta é a primeira fatia da migração. renderPage, renderTextLayer, getTextContent, dimensões, outline e seleção ainda ficam no PDF.js para preservar o comportamento visual enquanto a busca Rust é medida em uso real.

A busca no navegador consulta as páginas em lotes assíncronos para não bloquear o thread principal em PDFs grandes. O core mantém um cache LRU limitado a 64 MiB do texto extraído; o cache evita reextrair as páginas a cada nova consulta sem fazer a memória crescer indefinidamente.