Method handleGetTypesAtPositions

internal/api/session.go:1458–1484

handleGetTypesAtPositions returns types at multiple positions in a file.

(ctx context.Context, params *GetTypesAtPositionsParams)

// handleGetTypesAtPositions returns types at multiple positions in a file.
func (s *Session) handleGetTypesAtPositions(ctx context.Context, params *GetTypesAtPositionsParams) ([]*TypeResponse, error) {
	setup, err := s.setupChecker(ctx, params.Snapshot, params.Project)
	if err != nil {
		return nil, err
	}
	defer setup.done()

	sourceFile := setup.program.GetSourceFile(params.File.ToFileName())
	if sourceFile == nil {
		return nil, fmt.Errorf("%w: source file not found: %v", ErrClientError, params.File)
	}

	positionMap := sourceFile.GetPositionMap()
	results := make([]*TypeResponse, len(params.Positions))
	for i, pos := range params.Positions {
		node := astnav.GetTouchingPropertyName(sourceFile, positionMap.UTF16ToUTF8(int(pos)))
		if node == nil {
			continue
		}
		t := setup.checker.GetTypeAtLocation(node)
		if t != nil {
			results[i] = setup.newTypeResponse(t)
		}
	}

	return results, nil
}

func (s *Session) handleGetParentOfSymbol(_ context.Context, params *GetSymbolPropertyParams) (*SymbolResponse, error) {
	return s.resolveSymbolPropertyOfSymbol(params, func(sym *ast.Symbol) *ast.Symbol { return sym.Parent })