Function formatDiagnosticsForAttachment

src/services/lsp/passiveFeedback.ts:43–100

(
  params: PublishDiagnosticsParams,
)

 * used by Claude's attachment system.
 */
export function formatDiagnosticsForAttachment(
  params: PublishDiagnosticsParams,
): DiagnosticFile[] {
  // Parse URI (may be file:// or plain path) and normalize to file system path
  let uri: string
  try {
    // Handle both file:// URIs and plain paths
    uri = params.uri.startsWith('file://')
      ? fileURLToPath(params.uri)
      : params.uri
  } catch (error) {
    const err = toError(error)
    logError(err)
    logForDebugging(
      `Failed to convert URI to file path: ${params.uri}. Error: ${err.message}. Using original URI as fallback.`,
    )
    // Gracefully fallback to original URI - LSP servers may send malformed URIs
    uri = params.uri
  }

  const diagnostics = params.diagnostics.map(
    (diag: {
      message: string
      severity?: number
      range: {
        start: { line: number; character: number }
        end: { line: number; character: number }
      }
      source?: string
      code?: string | number
    }) => ({
      message: diag.message,
      severity: mapLSPSeverity(diag.severity),
      range: {
        start: {
          line: diag.range.start.line,
          character: diag.range.start.character,
        },
        end: {
          line: diag.range.end.line,
          character: diag.range.end.character,
        },
      },
      source: diag.source,
      code:
        diag.code !== undefined && diag.code !== null
          ? String(diag.code)
          : undefined,
    }),
  )

  return [
    {
      uri,
      diagnostics,
    },
  ]
}