56 lines
1.7 KiB
JavaScript
56 lines
1.7 KiB
JavaScript
import * as eslexer from "es-module-lexer";
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import { AstroError, AstroErrorData } from "../core/errors/index.js";
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const BOOLEAN_EXPORTS = /* @__PURE__ */ new Set(["prerender"]);
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function includesExport(code) {
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for (const name of BOOLEAN_EXPORTS) {
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if (code.includes(name))
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return true;
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}
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return false;
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}
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function isQuoted(value) {
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return (value[0] === '"' || value[0] === "'") && value[value.length - 1] === value[0];
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}
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function isTruthy(value) {
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if (isQuoted(value)) {
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value = value.slice(1, -1);
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}
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return value === "true" || value === "1";
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}
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function isFalsy(value) {
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if (isQuoted(value)) {
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value = value.slice(1, -1);
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}
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return value === "false" || value === "0";
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}
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let didInit = false;
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async function scan(code, id, isHybridOutput = false) {
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if (!includesExport(code))
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return {};
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if (!didInit) {
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await eslexer.init;
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didInit = true;
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}
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const [, exports] = eslexer.parse(code, id);
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let pageOptions = {};
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for (const _export of exports) {
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const { n: name, le: endOfLocalName } = _export;
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if (BOOLEAN_EXPORTS.has(name)) {
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const prefix = code.slice(0, endOfLocalName).split("export").pop().trim().replace("prerender", "").trim();
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const suffix = code.slice(endOfLocalName).trim().replace(/\=/, "").trim().split(/[;\n]/)[0];
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if (prefix !== "const" || !(isTruthy(suffix) || isFalsy(suffix))) {
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throw new AstroError({
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...AstroErrorData.InvalidPrerenderExport,
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message: AstroErrorData.InvalidPrerenderExport.message(prefix, suffix, isHybridOutput),
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location: { file: id }
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});
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} else {
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pageOptions[name] = isTruthy(suffix);
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}
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}
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}
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return pageOptions;
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}
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export {
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scan
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};
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