createInMemoryLogger() — vite Function Reference

Architecture documentation for the createInMemoryLogger() function in vitestSetup.ts from the vite codebase.

Function typescript ViteCore ConfigEngine called by 1

Entity Profile

ViteCore→ ConfigEngine→ createInMemoryLogger() — vite Function Reference

Dependency Diagram

graph TD
  8ac737b0_3331_a657_5931_95cb4a02d224["createInMemoryLogger()"]
  804dc5f9_3eef_472e_8575_1233b4358f17["vitestSetup.ts"]
  8ac737b0_3331_a657_5931_95cb4a02d224 -->|defined in| 804dc5f9_3eef_472e_8575_1233b4358f17
  9c39db4a_5ddd_67a5_69e8_01c342e795f3["loadConfig()"]
  9c39db4a_5ddd_67a5_69e8_01c342e795f3 -->|calls| 8ac737b0_3331_a657_5931_95cb4a02d224
  style 8ac737b0_3331_a657_5931_95cb4a02d224 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

playground/vitestSetup.ts lines 357–387

export function createInMemoryLogger(logs: string[]): Logger {
  const loggedErrors = new WeakSet<Error | RollupError>()
  const warnedMessages = new Set<string>()

  const logger: Logger = {
    hasWarned: false,
    hasErrorLogged: (err) => loggedErrors.has(err),
    clearScreen: () => {},
    info(msg) {
      logs.push(msg)
    },
    warn(msg) {
      logs.push(msg)
      logger.hasWarned = true
    },
    warnOnce(msg) {
      if (warnedMessages.has(msg)) return
      logs.push(msg)
      logger.hasWarned = true
      warnedMessages.add(msg)
    },
    error(msg, opts) {
      logs.push(msg)
      if (opts?.error) {
        loggedErrors.add(opts.error)
      }
    },
  }

  return logger
}