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eve

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

github.com/vercel/eve

vercel/eve

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import{z}from"#compiled/zod/index.js";import{createCompiledBindingNamespaceLoader,resolveCompiledModuleExtensionScopeNamespace}from"#compiler/load-binding-namespace.js";import{ROOT_COMPILED_AGENT_NODE_ID}from"#compiler/manifest.js";import"#compiler/source-graph.js";import{normalizeEsmImportSpecifier}from"#internal/application/import-specifier.js";const compiledModuleNodeScopeSchema=z.object({modules:z.record(z.string(),z.object({}).passthrough())}).strict(),compiledModuleMapSchema=z.object({nodes:z.record(z.string(),compiledModuleNodeScopeSchema)}).strict();function createCompiledModuleMapSource(e){let t=dirnameFilesystemPath(e.moduleMapPath),n=e.importSpecifierStyle??`relative`,r=0,i=!1,a=collectBoundNodeScopes(e.manifest).map(e=>{let a=new Map(e.modules.map(e=>[e.sourceId,`module_${r++}`]));return{modules:e.modules.map(({binding:e,sourceId:r})=>{let o=a.get(r);return e.backing.kind===`filesystem`?{bindingName:o,importSpecifier:createImportSpecifier({fromDirectory:t,importSpecifierStyle:n,targetPath:e.backing.sourcePath}),initializer:`memoizeModuleNamespaceFactories(imported_${o})`,sourceId:r}:(i=!0,{bindingName:o,initializer:`await loadProgrammaticModule(${JSON.stringify(e.backing)}, ${renderProgrammaticDependencies(e.backing.dependencies,a)})`,sourceId:r})}),nodeId:e.nodeId}}),o=a.flatMap(e=>e.modules),s=o.flatMap(e=>e.importSpecifier===void 0?[]:[`import * as imported_${e.bindingName} from ${JSON.stringify(e.importSpecifier)};`]),c=o.flatMap(e=>e.initializer===void 0?[]:[`const ${e.bindingName} = ${e.initializer};`]);return[`// Generated by eve. Do not edit by hand.`,...i||s.length>0?[`import { loadFrameworkProgrammaticModule as loadProgrammaticModule, memoizeModuleNamespaceFactories } from ${JSON.stringify(normalizeEsmImportSpecifier(e.programmaticLoaderImportSpecifier??`eve/internal/programmatic-source-loader`))};`]:[],...s,...i||s.length>0?[``]:[],...c,...c.length>0?[``]:[],`export const moduleMap = ${renderModuleMap(a)};`,``,`export default moduleMap;`,``].join(` `)}async function createProgrammaticCompiledModuleMap(e,t){let n={};for(let r of collectBoundNodeScopes(e)){let e={},i=Object.fromEntries(r.modules.map(({binding:e,sourceId:t})=>[t,e])),a=createCompiledBindingNamespaceLoader({bindings:i,registries:t});for(let{sourceId:t}of r.modules)e[t]=await a(t);n[r.nodeId]={modules:e}}return{nodes:n}}function collectRuntimeModuleBindingsForManifest(e){let t=new Map(Object.entries(e.bindings).filter(([,e])=>e.usage.runtimeEntry));for(let n of e.remoteAgents)if(n.binding.usage.runtimeEntry){if(t.has(n.sourceId))throw Error(`Remote agent binding "${n.sourceId}" collides with a node binding.`);t.set(n.sourceId,n.binding)}return orderBoundModules([...t].sort(([e],[t])=>e.localeCompare(t)).map(([e,t])=>({binding:t,sourceId:e})))}function orderBoundModules(e){let t=new Map(e.map(e=>[e.sourceId,e])),n=[],r=new Set,i=new Set,visit=e=>{if(!i.has(e.sourceId)){if(r.has(e.sourceId))throw Error(`Compiled module dependency cycle includes "${e.sourceId}".`);if(r.add(e.sourceId),e.binding.backing.kind===`programmatic`)for(let n of Object.values(e.binding.backing.dependencies??{})){let r=t.get(n);if(r===void 0)throw Error(`Programmatic binding "${e.sourceId}" depends on missing binding "${n}".`);visit(r)}r.delete(e.sourceId),i.add(e.sourceId),n.push(e)}};for(let t of e)visit(t);return n}function renderProgrammaticDependencies(e,t){let n=Object.entries(e??{});return n.length===0?`Object.freeze({})`:`Object.freeze({ ${n.map(([e,n])=>`${JSON.stringify(e)}: ${t.get(n)}`).join(`, `)} })`}function collectBoundNodeScopes(e){return[{modules:collectRuntimeModuleBindingsForManifest(e),nodeId:ROOT_COMPILED_AGENT_NODE_ID},...[...e.subagents].sort((e,t)=>e.nodeId.localeCompare(t.nodeId)).map(e=>({modules:collectRuntimeModuleBindingsForManifest(e.agent),nodeId:e.nodeId}))]}function renderModuleMap(e){return renderFrozenObject([{key:`nodes`,value:renderFrozenObject(e.map(e=>({key:e.nodeId,value:renderFrozenObject([{key:`modules`,value:renderFrozenObject(e.modules.map(e=>({key:e.sourceId,value:e.bindingName})))}],3)})))}],0)}function renderFrozenObject(e,t=1){if(e.length===0)return`Object.freeze({})`;let n=` `.repeat(t),r=` `.repeat(t+1);return[`Object.freeze({`,e.map(e=>`${r}${JSON.stringify(e.key)}: ${e.value.replaceAll(` `,`\n${r}`)}`).join(`, `),`${n}})`].join(` `)}function createImportSpecifier(e){if(e.importSpecifierStyle===`absolute`)return normalizeEsmImportSpecifier(normalizeFilesystemPath(e.targetPath));let t=relativeFilesystemPath(e.fromDirectory,e.targetPath);return t.startsWith(`.`)?t:`./${t}`}function dirnameFilesystemPath(e){let t=splitFilesystemPath(e);return t.segments.length===0?t.root.length===0?`.`:t.root:createFilesystemPath(t.root,t.segments.slice(0,-1))}function relativeFilesystemPath(e,t){let n=splitFilesystemPath(e),r=splitFilesystemPath(t);if(n.root!==r.root)return normalizeFilesystemPath(t);let i=0;for(;i<n.segments.length&&i<r.segments.length&&n.segments[i]===r.segments[i];)i+=1;return[...Array.from({length:n.segments.length-i},()=>`..`),...r.segments.slice(i)].join(`/`)||`.`}function normalizeFilesystemPath(e){let t=splitFilesystemPath(e);return createFilesystemPath(t.root,t.segments)}function splitFilesystemPath(e){let t=e.replaceAll(`\\`,`/`),n=``,r=t,i=t.match(/^[A-Za-z]:/);i===null?t.startsWith(`/`)&&(n=`/`,r=t.slice(1)):(n=i[0],r=t.slice(n.length),r.startsWith(`/`)&&(n+=`/`,r=r.slice(1)));let a=[];for(let e of r.split(`/`))e.length!==0&&e!==`.`&&(e===`..`?a.length>0&&a.at(-1)!==`..`?a.pop():n.length===0&&a.push(e):a.push(e));return{root:n,segments:a}}function createFilesystemPath(e,t){return e===`/`?t.length===0?`/`:`/${t.join(`/`)}`:e.endsWith(`/`)?t.length===0?e:`${e}${t.join(`/`)}`:e.length>0?t.length===0?e:`${e}/${t.join(`/`)}`:t.length===0?`.`:t.join(`/`)}export{collectRuntimeModuleBindingsForManifest,compiledModuleMapSchema,createCompiledModuleMapSource,createProgrammaticCompiledModuleMap,resolveCompiledModuleExtensionScopeNamespace};