39 lines
982 B
JavaScript
39 lines
982 B
JavaScript
importScripts('/public/go_wasm_exec.js');
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/*
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NOTE(ben): The structure here is a little funny but allows for some debouncing. Any postMessages
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that got queued up can run all at once, then it can process the latest one.
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*/
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let wasmLoaded = false;
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let jobs = {};
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onmessage = ({ data }) => {
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const { elementID, markdown } = data;
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jobs[elementID] = markdown;
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setTimeout(doPreview, 0);
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}
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const go = new Go();
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WebAssembly.instantiateStreaming(fetch('/public/parsing.wasm'), go.importObject)
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.then(result => {
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go.run(result.instance); // don't await this; we want it to be continuously running
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wasmLoaded = true;
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setTimeout(doPreview, 0);
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});
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const doPreview = () => {
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if (!wasmLoaded) {
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return;
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}
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for (const [elementID, markdown] of Object.entries(jobs)) {
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const html = parseMarkdown(markdown);
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postMessage({
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elementID: elementID,
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html: html,
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});
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}
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jobs = {};
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}
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