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);`,bindingName:`__filename`},{importLine:`import { dirname as __eveDirname } from "node:path";`,declarationLine:`const __dirname = __eveDirname(__filename);`,bindingName:`__dirname`}],FILENAME_BANNER_LINE=BANNER_LINES[0],DIRNAME_BANNER_LINE=BANNER_LINES[1],REQUIRE_LINE={importLine:`import { createRequire as __eveCreateRequire } from "node:module";`,declarationLine:`const require = __eveCreateRequire(import.meta.url);`,bindingName:`require`};function buildNodeEsmCompatBanner(e,t={}){let n=[...BANNER_LINES];t.includeRequire===!0&&n.push(REQUIRE_LINE);let r=[],i=[],a=collectTopLevelVariableBindings(e),o=a.has(FILENAME_BANNER_LINE.bindingName),s=a.has(DIRNAME_BANNER_LINE.bindingName);for(let e of n)a.has(e.bindingName)||(r.push(e.importLine),i.push(e===DIRNAME_BANNER_LINE&&o?`const __dirname = __eveDirname(__eveFileURLToPath(import.meta.url));`:e.declarationLine));return o&&!s&&r.unshift(FILENAME_BANNER_LINE.importLine),i.length===0?``:[...r,...i].join(`
`)}function collectTopLevelVariableBindings(e){let t=new Set;for(let n of e.body)if(n.type===`VariableDeclaration`)for(let e of n.declarations??[])e.id.type===`Identifier`&&e.id.name!==void 0&&t.add(e.id.name);return t}function createNodeEsmCompatBannerPlugin(e={}){return{name:`eve-node-esm-compat-banner`,renderChunk(t,n){let r=buildNodeEsmCompatBanner(this.parse(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};