@sanity/codegen/dist/typescript/parseSource.js

Codegen toolkit for Sanity.io

import { parse } from '@babel/core';
// helper function to parse a source file
export function parseSourceFile(_source, _filename, babelOptions) {
    let source = _source;
    let filename = _filename;
    if (filename.endsWith('.astro')) {
        // append .ts to the filename so babel will parse it as typescript
        filename += '.ts';
        source = parseAstro(source);
    } else if (filename.endsWith('.vue')) {
        // append .ts to the filename so babel will parse it as typescript
        filename += '.ts';
        source = parseVue(source);
    } else if (filename.endsWith('.svelte')) {
        // append .ts to the filename so babel will parse it as typescript
        filename += '.ts';
        source = parseSvelte(source);
    }
    const result = parse(source, {
        ...babelOptions,
        filename
    });
    if (!result) {
        throw new Error(`Failed to parse ${filename}`);
    }
    return result;
}
function parseAstro(source) {
    // find all code fences, the js code is between --- and ---
    // Handle both Unix (\n) and Windows (\r\n) line endings
    const codeFences = source.match(/---\r?\n([\s\S]*?)\r?\n---/g);
    if (!codeFences) {
        return '';
    }
    return codeFences.map((codeFence)=>{
        // Split on either \n or \r\n
        return codeFence.split(/\r?\n/).slice(1, -1).join('\n');
    }).join('\n');
}
function parseVue(source) {
    // find all script tags, the js code is between <script> and </script>
    const scriptRegex = /<script(?:\s+generic=["'][^"']*["'])?[^>]*>([\s\S]*?)<\/script>/g;
    // const matches = [...source.matchAll(scriptRegex)]
    // TODO: swap once this code runs in `ES2020`
    const matches = matchAllPolyfill(source, scriptRegex);
    if (matches.length === 0) {
        return '';
    }
    return matches.map((match)=>match[1]).join('\n');
}
function parseSvelte(source) {
    // find all script tags, the js code is between <script> and </script>
    const scriptRegex = /<script[^>]*>([\s\S]*?)<\/script>/g;
    // const matches = [...source.matchAll(scriptRegex)]
    // TODO: swap once this code runs in `ES2020`
    const matches = matchAllPolyfill(source, scriptRegex);
    if (matches.length === 0) {
        return '';
    }
    return matches.map((match)=>match[1]).join('\n');
}
// TODO: remove once this code runs in `ES2020`
function matchAllPolyfill(str, regex) {
    if (!regex.global) {
        throw new Error('matchAll polyfill requires a global regex (with /g flag)');
    }
    const matches = [];
    let match;
    while((match = regex.exec(str)) !== null){
        matches.push(match);
    }
    return matches;
}

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