eve/dist/src/compiler/source-graph.js

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

import{isAbsolute,posix}from"node:path";import{getSupportedModuleBaseName,normalizeLogicalPath,stripLogicalPathExtension}from"#discover/filesystem.js";import{parseJsonObject}from"#shared/json.js";function memoizeModuleNamespaceFactories(e){return Object.freeze(Object.fromEntries(Object.entries(e).map(([e,t])=>{if(typeof t!=`function`)return[e,t];let n;return[e,new Proxy(t,{apply(e,t,r){return r.length>0?Reflect.apply(e,t,r):(n??=Promise.resolve().then(()=>Reflect.apply(e,t,r)),n)}})]})))}var ImmutableProgrammaticSourceMap=class{#e;constructor(e){this.#e=new Map(e),Object.freeze(this)}get size(){return this.#e.size}get[Symbol.toStringTag](){return`ImmutableProgrammaticSourceMap`}[Symbol.iterator](){return this.#e[Symbol.iterator]()}entries(){return this.#e.entries()}forEach(e,t){this.#e.forEach((n,r)=>e.call(t,n,r,this))}get(e){return this.#e.get(e)}has(e){return this.#e.has(e)}keys(){return this.#e.keys()}values(){return this.#e.values()}};function isAgentModuleCandidate(e){return e.backing.kind!==`resource`}const LAYER_PRECEDENCE={"framework-default":0,"extension-package":1,"extension-override":2,application:3},FORM_PRECEDENCE={derived:0,direct:1},registeredProgrammaticTemplates=new WeakSet;function defineProgrammaticAgentSource(e){let t=expectNonEmpty(e.id,`Programmatic agent source id`),n=expectNonEmpty(e.revision,`Programmatic agent source "${t}" revision`),r=new Set,i=e.modules.map(e=>{let n=validateProgrammaticLogicalPath(e.logicalPath);if(r.has(n))throw Error(`Programmatic agent source "${t}" declares "${n}" more than once.`);r.add(n);let i=e.semanticRevision===void 0?void 0:expectNonEmpty(e.semanticRevision,`Programmatic module "${t}:${n}" semanticRevision`);return Object.freeze({exportName:e.exportName,loadNamespace:e.loadNamespace,logicalPath:n,semanticRevision:i})});return Object.freeze({id:t,modules:Object.freeze(i),revision:n})}function createAgentSourceRegistry(e,t={}){let n=new Map,r=new Map,addSource=e=>{let t=defineProgrammaticAgentSource(e);if(n.has(t.id))throw Error(`Programmatic agent source id "${t.id}" is registered more than once.`);return n.set(t.id,t),t},i=e.map(e=>{let t=addSource(e.source);return Object.freeze({applyTo:e.applyTo,source:t})});for(let e of t.templates??[]){let t=addSource(e);if(t.modules.length!==1)throw Error(`Programmatic template source "${t.id}" must register exactly one module.`);let n=Object.freeze({module:t.modules[0],source:t});registeredProgrammaticTemplates.add(n),r.set(t.id,n)}return Object.freeze({registrations:Object.freeze(i),sources:new ImmutableProgrammaticSourceMap(n),templates:new ImmutableProgrammaticSourceMap(r)})}function createProgrammaticModuleCandidates(e){return e.registration.source.modules.map(t=>{let n=`${e.registration.source.id}:${t.logicalPath}`;return Object.freeze({backing:Object.freeze({kind:`programmatic`,moduleId:t.logicalPath,registryId:e.registration.source.id,revision:e.registration.source.revision,semanticRevision:t.semanticRevision}),exportName:t.exportName,form:`direct`,layer:e.layer,logicalPath:t.logicalPath,nodeId:e.nodeId,owner:e.owner,sourceId:n})})}function instantiateProgrammaticTemplate(e){if(!registeredProgrammaticTemplates.has(e.template))throw Error(`Derived programmatic modules require a registered template.`);let t=validateProgrammaticLogicalPath(e.logicalPath),n=expectNonEmpty(e.anchor.sourceId,`Derived programmatic module anchor source id`),r=`${e.template.source.id}:${t}:from:${n}`;if(!Object.values(e.dependencies).some(e=>e.sourceId===n))throw Error(`Derived programmatic module "${r}" must include its anchor source as a dependency.`);let i=Object.freeze(Object.fromEntries(Object.entries(e.dependencies).sort(([e],[t])=>e.localeCompare(t)).map(([t,n])=>{if(expectNonEmpty(t,`Derived programmatic module dependency alias`),n.nodeId!==e.anchor.nodeId)throw Error(`Derived programmatic module "${r}" cannot depend on source "${n.sourceId}" from another node.`);return[t,n.sourceId]}))),a=Object.freeze(parseJsonObject(e.parameters??{}));return Object.freeze({backing:Object.freeze({dependencies:i,kind:`programmatic`,moduleId:e.template.module.logicalPath,parameters:a,registryId:e.template.source.id,revision:e.template.source.revision,semanticRevision:e.template.module.semanticRevision}),exportName:e.template.module.exportName,form:`derived`,layer:e.anchor.layer,logicalPath:t,nodeId:e.anchor.nodeId,owner:e.owner,sourceId:r})}function composeAgentModuleCandidates(e){let t=new Map,n=new Set;for(let r of e){if(n.has(r.sourceId))throw Error(`Agent source id "${r.sourceId}" is declared more than once in node "${r.nodeId}".`);n.add(r.sourceId);let e=canonicalSourceSlot(r.logicalPath),i=t.get(e)??[];i.push(r),t.set(e,i)}let r=new Map,i=[];for(let[e,n]of[...t].sort(([e],[t])=>e.localeCompare(t))){let t=new Set;for(let r of n){let n=`${r.layer}:${r.form}`;if(t.has(n))throw Error(`Agent source slot "${e}" has more than one ${r.layer} ${r.form} candidate.`);t.add(n)}let a=[...n].sort((e,t)=>LAYER_PRECEDENCE[t.layer]-LAYER_PRECEDENCE[e.layer]||FORM_PRECEDENCE[t.form]-FORM_PRECEDENCE[e.form]),o=a[0];r.set(e,o);for(let e of a.slice(1))i.push({kind:`shadowed`,source:describeAgentSourceCandidate(e),winnerSourceId:o.sourceId})}return validateSelectedCandidateDependencies(r),{composition:{entries:Object.freeze(i)},selected:r}}function disableComposedCandidate(e){let t=canonicalSourceSlot(e.candidate.logicalPath),n=new Map(e.composed.selected);if(n.get(t)?.sourceId!==e.candidate.sourceId)throw Error(`Only the selected source for "${t}" can disable that slot.`);if(!e.composed.composition.entries.some(t=>t.kind===`shadowed`&&t.winnerSourceId===e.candidate.sourceId))throw Error(`Source "${e.candidate.logicalPath}" disables a slot with no lower-precedence source.`);return n.delete(t),{composition:{entries:Object.freeze([...e.composed.composition.entries,{kind:`disabled`,source:describeAgentSourceCandidate(e.candidate)}])},selected:n}}function createAgentModuleBinding(e){return Object.freeze({backing:e.backing,logicalPath:e.logicalPath,owner:e.owner})}async function loadProgrammaticModuleNamespace(e){let t=e.registries.map(t=>t.sources.get(e.backing.registryId)).filter(e=>e!==void 0);if(t.length!==1)throw Error(`Expected exactly one registered programmatic source "${e.backing.registryId}", found ${t.length}.`);let n=t[0];if(n.revision!==e.backing.revision)throw Error(`Programmatic source "${n.id}" revision mismatch: artifact requires "${e.backing.revision}", registry provides "${n.revision}".`);let r=n.modules.find(t=>t.logicalPath===e.backing.moduleId);if(r===void 0)throw Error(`Programmatic source "${n.id}" does not register module "${e.backing.moduleId}".`);if(r.semanticRevision!==e.backing.semanticRevision)throw Error(`Programmatic module "${n.id}:${r.logicalPath}" semantic revision does not match the compiled binding.`);let i=Object.fromEntries(Object.entries(e.backing.dependencies??{}).map(([t,i])=>{let a=e.dependencyNamespaces?.[t];if(a===void 0)throw Error(`Programmatic module "${n.id}:${r.logicalPath}" requires unresolved binding "${i}" as dependency "${t}".`);return[t,a]})),a=await r.loadNamespace({dependencies:Object.freeze(i),parameters:Object.freeze(e.backing.parameters??{})});if(typeof a!=`object`||!a)throw Error(`Programmatic module "${n.id}:${r.logicalPath}" loader must return a module namespace object.`);return a}function canonicalModuleSlot(e){return validateProgrammaticLogicalPath(e),canonicalSourceSlot(e)}function canonicalSourceSlot(e){let t=normalizeLogicalPath(e);if(t.length===0||t===`.`||t.startsWith(`../`)||t.includes(`/../`)||posix.normalize(t)!==t)throw Error(`Agent source logical path "${e}" is invalid.`);let n=stripLogicalPathExtension(t),r=n.match(/^connections\/([^/]+)\/connection$/);if(r!==null)return`connections/${r[1]}`;if(n===`sandbox/sandbox`)return`sandbox`;let i=n.match(/^skills\/([^/]+)\/SKILL$/);return i===null?n:`skills/${i[1]}`}function validateProgrammaticLogicalPath(e){if(e.length===0||isAbsolute(e)||e.includes(`\\`))throw Error(`Programmatic module logical path "${e}" must be a relative POSIX path.`);let t=normalizeLogicalPath(e);if(t===`.`||t.startsWith(`../`)||t.includes(`/../`)||posix.normalize(t)!==t)throw Error(`Programmatic module logical path "${e}" may not traverse directories.`);let n=t.split(`/`),r=n.at(-1);if(getSupportedModuleBaseName(r)===null)throw Error(`Programmatic module logical path "${e}" must use a supported JavaScript or TypeScript extension.`);let i=n[0],a=stripLogicalPathExtension(t);if(!(n.length===1&&[`agent`,`memory`,`sandbox`,`instrumentation`].includes(a)||i===`sandbox`&&n.length===2&&getSupportedModuleBaseName(r)===`sandbox`||[`channels`,`connections`,`hooks`,`instructions`,`memory`,`schedules`,`skills`,`tools`].includes(i)&&n.length>=2))throw Error(`Programmatic module logical path "${e}" does not select an eve module slot.`);return t}function describeAgentSourceCandidate(e){return Object.freeze({backing:e.backing,form:e.form,layer:e.layer,logicalPath:e.logicalPath,owner:e.owner,sourceId:e.sourceId})}function validateSelectedCandidateDependencies(e){let t=new Set([...e.values()].map(e=>e.sourceId));for(let n of e.values())if(n.backing.kind===`programmatic`){for(let e of Object.values(n.backing.dependencies??{}))if(!t.has(e))throw Error(`Derived programmatic source "${n.sourceId}" depends on unselected source "${e}".`)}}function expectNonEmpty(e,t){if(e.trim().length===0)throw Error(`${t} must be non-empty.`);return e}export{canonicalModuleSlot,canonicalSourceSlot,composeAgentModuleCandidates,createAgentModuleBinding,createAgentSourceRegistry,createProgrammaticModuleCandidates,defineProgrammaticAgentSource,describeAgentSourceCandidate,disableComposedCandidate,instantiateProgrammaticTemplate,isAgentModuleCandidate,loadProgrammaticModuleNamespace,memoizeModuleNamespaceFactories,validateProgrammaticLogicalPath};