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@ -16,14 +16,17 @@ const SPECIALS = ['global', 'globalThis', 'InternalError', 'process', 'undefined
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const get_url = (name) => `https://raw.githubusercontent.com/microsoft/TypeScript/main/lib/lib.${name}.d.ts`;
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const extract_name = (split) => split.match(/^[a-zA-Z0-9_$]+/)[0];
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const extract_functions_and_references = (data) => {
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const extract_functions_and_references = (name, data) => {
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const functions = [];
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const references = [];
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data.split('\n').forEach(line => {
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const trimmed = line.trim();
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const split = trimmed.replace(/[\s+]/, ' ').split(' ');
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if (split[0] === 'declare') functions.push(extract_name(split[2]));
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else if (trimmed.startsWith('/// <reference')) {
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if (split[0] === 'declare') {
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// MEMO: ignore `declare type xxx` statement in lib.es5.d.ts.
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// Because all of these are TypeScript types. (not exists in runtime.)
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if (name !== 'es5' || split[1] !== 'type') functions.push(extract_name(split[2]));
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} else if (trimmed.startsWith('/// <reference')) {
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const matched = trimmed.match(/ lib="(.+)"/);
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const reference = matched && matched[1];
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if (reference) references.push(reference);
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@ -50,7 +53,7 @@ const get_functions = async (name) => {
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if (fetched_names.has(name)) return res;
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fetched_names.add(name);
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const body = await do_get(get_url(name));
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const { functions, references } = extract_functions_and_references(body);
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const { functions, references } = extract_functions_and_references(name, body);
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res.push(...functions);
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const chile_functions = await Promise.all(references.map(get_functions));
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chile_functions.forEach(i => res.push(...i));
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Yuichiro Yamashita
4 years ago