Phase 911: export mesh lookup entry resolve + mixin method keys (v0.8.878)

Non-breaking refactor — lookupExportMeshFetchRegistryEntryIfName()
deduplicates entry lookup chain; listExportMeshFetchMixinMethodKeysForEntry()
centralizes mixin method key lists; listExportMeshFetchNamedMixinRegistryNames()
extends named map module; diagnostics include exportMeshFetchNamedMixinRegistryNames.
Default gossip v1 unchanged; fleet v2 cutover still deferred.

Verification: test:ci-phase911, boot gate, pearcord.log scan.

README.md

@@ -92,6 +92,8 @@ Application facade: one `PearcordPlatform` class that wires identity, database,
 
 **Phase 822 (v0.8.789):** Triple-peer topology via `guild-mesh-topology` + `getMeshStabilityStats`. Bundle: `npm run test:ci-phase822`.
 
+**Phase 911 (v0.8.878):** Export mesh lookup entry resolve + mixin method keys. Bundle: `npm run test:ci-phase911`.
+
 **Phase 910 (v0.8.877):** Export mesh pull config derive + mixin method lookup. Bundle: `npm run test:ci-phase910`.
 
 **Phase 909 (v0.8.876):** Export mesh named mixin map extract + entry field lookup. Bundle: `npm run test:ci-phase909`.

gossip-rpc-export-mesh-mixin.js

@@ -2,6 +2,7 @@
 
 const { buildGuildExportMeshGossipWaitCallback } = require('./gossip-rpc-export-mesh-gossip-wait-build')
 const { exportMeshFetchNamedMixinMap } = require('./gossip-rpc-export-mesh-registry-named')
+const { listExportMeshFetchMixinMethodKeysForEntry } = require('./gossip-rpc-export-mesh-registry-lists')
 const { fetchGuildExportMeshFromMesh, fetchGuildExportMeshResourceOnce } = require('./gossip-rpc-export-mesh-fetch-once')
 
 /** Build platform mesh fetch mixin methods from a registry entry (Phase 899, Phase 906). */
@@ -57,13 +58,13 @@ function buildGuildExportMeshFetchMixinsFromRegistry (registry) {
   return mixins
 }
 
-/** Pick one registry entry's methods from a consolidated mixin (Phase 902, Phase 906). */
+/** Pick one registry entry's methods from a consolidated mixin (Phase 902, Phase 906, Phase 911). */
 function pickGuildExportMeshFetchMixinMethods (entry, mixin) {
-  return {
+  const picked = {}
-    [entry.resolveWaiterMethod]: mixin[entry.resolveWaiterMethod],
+  for (const methodKey of listExportMeshFetchMixinMethodKeysForEntry(entry)) {
-    [entry.fetchFromMeshMethod]: mixin[entry.fetchFromMeshMethod],
+    picked[methodKey] = mixin[methodKey]
-    [entry.fetchOnceMethod]: mixin[entry.fetchOnceMethod]
   }
+  return picked
 }
 
 /** Build consolidated + named platform export mesh fetch mixins (Phase 904, Phase 906, Phase 909). */

gossip-rpc-export-mesh-registry-lists.js

@@ -13,16 +13,19 @@ function listExportMeshFetchRegistryEntryField (registry, keys, field) {
 function listExportMeshFetchMixinMethodsFromRegistry (registry, keys) {
   const methods = []
   for (const name of keys) {
-    const entry = registry[name]
+    methods.push(...listExportMeshFetchMixinMethodKeysForEntry(registry[name]))
-    methods.push(
-      entry.resolveWaiterMethod,
-      entry.fetchFromMeshMethod,
-      entry.fetchOnceMethod
-    )
   }
   return methods
 }
 
+function listExportMeshFetchMixinMethodKeysForEntry (entry) {
+  return [
+    entry.resolveWaiterMethod,
+    entry.fetchFromMeshMethod,
+    entry.fetchOnceMethod
+  ]
+}
+
 function findExportMeshFetchRegistryName (registry, keys, predicate) {
   return keys.find((key) => predicate(registry[key], key)) || null
 }
@@ -53,6 +56,7 @@ module.exports = {
   listExportMeshFetchRegistryKeys,
   listExportMeshFetchRegistryEntryField,
   listExportMeshFetchMixinMethodsFromRegistry,
+  listExportMeshFetchMixinMethodKeysForEntry,
   listExportMeshPullConfigKeysFromRegistry,
   findExportMeshFetchRegistryName,
   findExportMeshFetchRegistryNameByEntryField,

gossip-rpc-export-mesh-registry-lookup-entry.js

@@ -0,0 +1,9 @@
+'use strict'
+
+/** Resolve a cloned registry entry when a registry name is present (Phase 911). */
+function lookupExportMeshFetchRegistryEntryIfName (name, lookupEntry) {
+  if (!name) return null
+  return lookupEntry(name)
+}
+
+module.exports = { lookupExportMeshFetchRegistryEntryIfName }

gossip-rpc-export-mesh-registry-lookup.js

@@ -2,6 +2,7 @@
 
 const { exportMeshFetchRegistry } = require('./gossip-rpc-export-mesh-registry')
 const { cloneExportMeshFetchRegistryEntry } = require('./gossip-rpc-export-mesh-registry-entry')
+const { lookupExportMeshFetchRegistryEntryIfName } = require('./gossip-rpc-export-mesh-registry-lookup-entry')
 const {
   buildExportMeshFetchRegistrySnapshotFromKeys,
   buildExportMeshFetchRegistryDiagnosticsPayload
@@ -15,6 +16,7 @@ const {
 } = require('./gossip-rpc-export-mesh-registry-lists')
 const {
   listExportMeshFetchNamedMixinExportKeys,
+  listExportMeshFetchNamedMixinRegistryNames,
   lookupExportMeshFetchRegistryNameByNamedMixinExport
 } = require('./gossip-rpc-export-mesh-registry-named')
 
@@ -58,23 +60,31 @@ function lookupExportMeshFetchRegistryNameByWaitersKey (waitersKey) {
 }
 
 function lookupExportMeshFetchRegistryEntryByPullConfig (pullConfigKey) {
-  const name = lookupExportMeshFetchRegistryNameByPullConfig(pullConfigKey)
+  return lookupExportMeshFetchRegistryEntryIfName(
-  return name ? lookupExportMeshFetchRegistryEntry(name) : null
+    lookupExportMeshFetchRegistryNameByPullConfig(pullConfigKey),
+    lookupExportMeshFetchRegistryEntry
+  )
 }
 
 function lookupExportMeshFetchRegistryEntryByMixinMethod (methodName) {
-  const name = lookupExportMeshFetchRegistryNameByMixinMethod(methodName)
+  return lookupExportMeshFetchRegistryEntryIfName(
-  return name ? lookupExportMeshFetchRegistryEntry(name) : null
+    lookupExportMeshFetchRegistryNameByMixinMethod(methodName),
+    lookupExportMeshFetchRegistryEntry
+  )
 }
 
 function lookupExportMeshFetchRegistryEntryByWaitersKey (waitersKey) {
-  const name = lookupExportMeshFetchRegistryNameByWaitersKey(waitersKey)
+  return lookupExportMeshFetchRegistryEntryIfName(
-  return name ? lookupExportMeshFetchRegistryEntry(name) : null
+    lookupExportMeshFetchRegistryNameByWaitersKey(waitersKey),
+    lookupExportMeshFetchRegistryEntry
+  )
 }
 
 function lookupExportMeshFetchRegistryEntryByNamedMixinExport (exportKey) {
-  const name = lookupExportMeshFetchRegistryNameByNamedMixinExport(exportKey)
+  return lookupExportMeshFetchRegistryEntryIfName(
-  return name ? lookupExportMeshFetchRegistryEntry(name) : null
+    lookupExportMeshFetchRegistryNameByNamedMixinExport(exportKey),
+    lookupExportMeshFetchRegistryEntry
+  )
 }
 
 function buildExportMeshFetchRegistrySnapshot () {
@@ -89,7 +99,8 @@ function buildExportMeshFetchRegistryDiagnosticsSnapshot () {
     registrySnapshot: buildExportMeshFetchRegistrySnapshotFromKeys(exportMeshFetchRegistry, registryKeys),
     mixinMethods: listExportMeshFetchMixinMethods(),
     waitersKeys: listExportMeshFetchWaitersKeys(),
-    namedMixinExportKeys: listExportMeshFetchNamedMixinExportKeys()
+    namedMixinExportKeys: listExportMeshFetchNamedMixinExportKeys(),
+    namedMixinRegistryNames: listExportMeshFetchNamedMixinRegistryNames()
   })
 }
 

gossip-rpc-export-mesh-registry-named.js

@@ -10,6 +10,10 @@ function listExportMeshFetchNamedMixinExportKeys () {
   return Object.keys(exportMeshFetchNamedMixinMap)
 }
 
+function listExportMeshFetchNamedMixinRegistryNames () {
+  return Object.values(exportMeshFetchNamedMixinMap)
+}
+
 function lookupExportMeshFetchRegistryNameByNamedMixinExport (exportKey) {
   return exportMeshFetchNamedMixinMap[exportKey] || null
 }
@@ -17,5 +21,6 @@ function lookupExportMeshFetchRegistryNameByNamedMixinExport (exportKey) {
 module.exports = {
   exportMeshFetchNamedMixinMap,
   listExportMeshFetchNamedMixinExportKeys,
+  listExportMeshFetchNamedMixinRegistryNames,
   lookupExportMeshFetchRegistryNameByNamedMixinExport
 }

gossip-rpc-export-mesh-registry-snapshot.js

@@ -24,14 +24,16 @@ function buildExportMeshFetchRegistryDiagnosticsPayload ({
   registrySnapshot,
   mixinMethods,
   waitersKeys,
-  namedMixinExportKeys
+  namedMixinExportKeys,
+  namedMixinRegistryNames
 }) {
   return {
     exportMeshFetchRegistryKeys: registryKeys,
     exportMeshFetchRegistrySnapshot: registrySnapshot,
     exportMeshFetchMixinMethods: mixinMethods,
     exportMeshFetchWaitersKeys: waitersKeys,
-    exportMeshFetchNamedMixinExportKeys: namedMixinExportKeys
+    exportMeshFetchNamedMixinExportKeys: namedMixinExportKeys,
+    exportMeshFetchNamedMixinRegistryNames: namedMixinRegistryNames
   }
 }
 

gossip-rpc-export-mesh-registry-validate.js

@@ -7,7 +7,7 @@ const {
   listExportMeshFetchMixinMethods,
   listExportMeshFetchWaitersKeys
 } = require('./gossip-rpc-export-mesh-registry-lookup')
-const { exportMeshFetchNamedMixinMap } = require('./gossip-rpc-export-mesh-registry-named')
+const { exportMeshFetchNamedMixinMap, listExportMeshFetchNamedMixinRegistryNames } = require('./gossip-rpc-export-mesh-registry-named')
 const { exportMeshFetchRegistryStringFields } = require('./gossip-rpc-export-mesh-registry-validate-fields')
 const { assertUniqueExportMeshRegistryValue } = require('./gossip-rpc-export-mesh-registry-validate-unique')
 
@@ -45,12 +45,17 @@ function validateExportMeshFetchRegistryAlignment () {
     }
   }
 
-  for (const registryName of Object.values(exportMeshFetchNamedMixinMap)) {
+  for (const registryName of listExportMeshFetchNamedMixinRegistryNames()) {
     if (!exportMeshFetchRegistry[registryName]) {
       throw new Error(`export mesh named mixin missing registry entry: ${registryName}`)
     }
   }
 
+  const namedRegistryNames = listExportMeshFetchNamedMixinRegistryNames()
+  if (namedRegistryNames.length !== Object.keys(exportMeshFetchNamedMixinMap).length) {
+    throw new Error(`export mesh named mixin registry name count ${namedRegistryNames.length}`)
+  }
+
   const mixinMethods = listExportMeshFetchMixinMethods()
   if (mixinMethods.length !== keys.length * 3) {
     throw new Error(`export mesh mixin method count ${mixinMethods.length}`)

gossip-rpc-export-mesh.js

@@ -12,6 +12,7 @@ const meshMixin = require('./gossip-rpc-export-mesh-mixin')
 const meshValidators = require('./gossip-rpc-export-mesh-validators')
 const meshRegistry = require('./gossip-rpc-export-mesh-registry')
 const meshRegistryLookup = require('./gossip-rpc-export-mesh-registry-lookup')
+const meshRegistryLookupEntry = require('./gossip-rpc-export-mesh-registry-lookup-entry')
 const meshRegistryLists = require('./gossip-rpc-export-mesh-registry-lists')
 const meshRegistryNamed = require('./gossip-rpc-export-mesh-registry-named')
 const meshRegistrySnapshot = require('./gossip-rpc-export-mesh-registry-snapshot')
@@ -36,6 +37,7 @@ module.exports = {
   ...meshValidators,
   ...meshRegistry,
   ...meshRegistryLookup,
+  ...meshRegistryLookupEntry,
   ...meshRegistryLists,
   ...meshRegistryNamed,
   ...meshRegistrySnapshot,