Function formatResult

src/tools/LSPTool/LSPTool.ts:636–829

* Formats LSP result based on operation type and extracts summary counts

(
  operation: Input['operation'],
  result: unknown,
  cwd: string,
)

 * Formats LSP result based on operation type and extracts summary counts
 */
function formatResult(
  operation: Input['operation'],
  result: unknown,
  cwd: string,
): { formatted: string; resultCount: number; fileCount: number } {
  switch (operation) {
    case 'goToDefinition': {
      // Handle both Location and LocationLink formats
      const rawResults = Array.isArray(result)
        ? result
        : result
          ? [result as Location | LocationLink]
          : []

      // Convert LocationLinks to Locations for uniform handling
      const locations = rawResults.map(toLocation)

      // Log and filter out locations with undefined uris
      const invalidLocations = locations.filter(loc => !loc || !loc.uri)
      if (invalidLocations.length > 0) {
        logError(
          new Error(
            `LSP server returned ${invalidLocations.length} location(s) with undefined URI for goToDefinition on ${cwd}. ` +
              `This indicates malformed data from the LSP server.`,
          ),
        )
      }

      const validLocations = locations.filter(loc => loc && loc.uri)
      return {
        formatted: formatGoToDefinitionResult(
          result as
            | Location
            | Location[]
            | LocationLink
            | LocationLink[]
            | null,
          cwd,
        ),
        resultCount: validLocations.length,
        fileCount: countUniqueFiles(validLocations),
      }
    }
    case 'findReferences': {
      const locations = (result as Location[]) || []

      // Log and filter out locations with undefined uris
      const invalidLocations = locations.filter(loc => !loc || !loc.uri)
      if (invalidLocations.length > 0) {
        logError(
          new Error(
            `LSP server returned ${invalidLocations.length} location(s) with undefined URI for findReferences on ${cwd}. ` +
              `This indicates malformed data from the LSP server.`,
          ),
        )
      }

      const validLocations = locations.filter(loc => loc && loc.uri)