eve/dist/src/internal/node-esm-compat-banner.js

Filesystem-first framework for durable backend AI agents that run anywhere.

const BANNER_LINES=[{importLine:`import { fileURLToPath as __eveFileURLToPath } from "node:url";`,declarationLine:`const __filename = __eveFileURLToPath(import.meta.url);`,bindingPattern:/^(?:const|let|var)\s+__filename\b/m},{importLine:`import { dirname as __eveDirname } from "node:path";`,declarationLine:`const __dirname = __eveDirname(__filename);`,bindingPattern:/^(?:const|let|var)\s+__dirname\b/m}],REQUIRE_LINE={importLine:`import { createRequire as __eveCreateRequire } from "node:module";`,declarationLine:`const require = __eveCreateRequire(import.meta.url);`,bindingPattern:/^(?:const|let|var)\s+require\b/m};function buildNodeEsmCompatBanner(n,r={}){let i=[...BANNER_LINES];r.includeRequire===!0&&i.push(REQUIRE_LINE);let a=[],o=[];for(let e of i)e.bindingPattern.test(n)||(a.push(e.importLine),o.push(e.declarationLine));return o.length===0?``:[...a,...o].join(`
`)}function createNodeEsmCompatBannerPlugin(e={}){return{name:`eve-node-esm-compat-banner`,renderChunk(t,n){let r=buildNodeEsmCompatBanner(t,e);return r===``?null:{code:`${r}\n${t}`,map:createPrependedLineSourceMap({insertedLineCount:r.split(`
`).length,source:n?.fileName??`eve-node-esm-compat-banner-input`,sourceContent:t})}}}}function createPrependedLineSourceMap({insertedLineCount:e,source:t,sourceContent:n}){let r=n.split(`
`).length,i=Array.from({length:r},(e,t)=>encodeVlqFields(t===0?[0,0,0,0]:[0,0,1,0]));return{version:3,sources:[t],sourcesContent:[n],names:[],mappings:`${`;`.repeat(e)}${i.join(`;`)}`}}function encodeVlqFields(e){return e.map(e=>encodeVlqInteger(e)).join(``)}function encodeVlqInteger(e){let t=e<0?(-e<<1)+1:e<<1,n=``;do{let e=t&31;t>>>=5,t>0&&(e|=32),n+=`ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/`[e]}while(t>0);return n}export{buildNodeEsmCompatBanner,createNodeEsmCompatBannerPlugin};