Method read

src/cli/structuredIO.ts:215–261

()

  }

  private async *read() {
    let content = ''

    // Called once before for-await (an empty this.input otherwise skips the
    // loop body entirely), then again per block. prependedLines re-check is
    // inside the while so a prepend pushed between two messages in the SAME
    // block still lands first.
    const splitAndProcess = async function* (this: StructuredIO) {
      for (;;) {
        if (this.prependedLines.length > 0) {
          content = this.prependedLines.join('') + content
          this.prependedLines = []
        }
        const newline = content.indexOf('\n')
        if (newline === -1) break
        const line = content.slice(0, newline)
        content = content.slice(newline + 1)
        const message = await this.processLine(line)
        if (message) {
          logForDiagnosticsNoPII('info', 'cli_stdin_message_parsed', {
            type: message.type,
          })
          yield message
        }
      }
    }.bind(this)

    yield* splitAndProcess()

    for await (const block of this.input) {
      content += block
      yield* splitAndProcess()
    }
    if (content) {
      const message = await this.processLine(content)
      if (message) {
        yield message
      }
    }
    this.inputClosed = true
    for (const request of this.pendingRequests.values()) {
      // Reject all pending requests if the input stream
      request.reject(
        new Error('Tool permission stream closed before response received'),
      )
    }
  }

  getPendingPermissionRequests() {
    return Array.from(this.pendingRequests.values())