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chore(8.0): collapse dead defensive guards + redundant polyfills

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Follow-up to the browser/cloud/threading sweep — everything that was guarding
against unreachable runtimes is now dead.

cacheManager.ts: Environment enum + this.environment field removed (only NODE
was reachable). StorageType narrowed to MEMORY + FILESYSTEM. navigator.deviceMemory
and performance.memory paths in detectOptimalCacheSize + detectAvailableMemory
deleted; node:os is the sole source. environmentConfig keeps the index signature
for future per-runtime tuning but only the node slot is wired.

Dead 'typeof window === undefined' guards (the check is always true on 8.0):
paramValidation, structuredLogger, mutex, brainy.ts stats block, and
networkTransport ws-dynamic-import all collapsed. IntegrationLoader's inverse
guard ('!== undefined' returning 'browser') deleted. mutex's createMutex default
type simplified from "(typeof window === 'undefined' ? 'file' : 'memory')" to
plain 'file'.

Redundant TextEncoder/TextDecoder polyfills: Node 22+ ships both as globals.
src/utils/textEncoding.ts deleted (applyTensorFlowPatch was named for a defunct
dep and only re-assigned globals already present). setup.ts collapsed to an
empty stable import target. unified.ts loses its applyTensorFlowPatch re-export.

modelAutoConfig.getModelPath() loses the unreachable trailing fallback now
that isNode() is effectively the only branch the function ever takes.

jsonProcessing.ts left unchanged — its 'typeof document' checks are value-shape
guards on the parsed JSON, not environment detection.
This commit is contained in:
David Snelling 2026-06-09 16:46:16 -07:00
parent 266715aeee
commit 42159f2bd7
11 changed files with 121 additions and 397 deletions
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22
src/utils/mutex.ts
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@ -105,16 +105,14 @@ export class FileMutex implements MutexInterface {
private async loadNodeModules(): Promise<void> {
if (this.modulesLoaded) return
if (typeof window === 'undefined') {
// Modern ESM-compatible dynamic imports
const [fs, path] = await Promise.all([
import('fs'),
import('path')
])
this.fs = fs
this.path = path
this.modulesLoaded = true
}
// Modern ESM-compatible dynamic imports
const [fs, path] = await Promise.all([
import('fs'),
import('path')
])
this.fs = fs
this.path = path
this.modulesLoaded = true
}
async acquire(key: string, timeout: number = 30000): Promise<() => void> {
@ -255,9 +253,9 @@ export function createMutex(options?: {
type?: 'memory' | 'file'
lockDir?: string
}): MutexInterface {
const type = options?.type || (typeof window === 'undefined' ? 'file' : 'memory')
const type = options?.type || 'file'
if (type === 'file' && typeof window === 'undefined') {
if (type === 'file') {
const lockDir = options?.lockDir || '.brainy/locks'
return new FileMutex(lockDir)
}