1 //===--- ASTSelectionRequirements.cpp - Clang refactoring library ---------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Tooling/Refactoring/RefactoringActionRuleRequirements.h" 11 12 using namespace clang; 13 using namespace tooling; 14 15 Expected<SelectedASTNode> 16 ASTSelectionRequirement::evaluate(RefactoringRuleContext &Context) const { 17 // FIXME: Memoize so that selection is evaluated only once. 18 Expected<SourceRange> Range = 19 SourceRangeSelectionRequirement::evaluate(Context); 20 if (!Range) 21 return Range.takeError(); 22 23 Optional<SelectedASTNode> Selection = 24 findSelectedASTNodes(Context.getASTContext(), *Range); 25 if (!Selection) 26 return Context.createDiagnosticError( 27 Range->getBegin(), diag::err_refactor_selection_invalid_ast); 28 return std::move(*Selection); 29 } 30 31 Expected<CodeRangeASTSelection> CodeRangeASTSelectionRequirement::evaluate( 32 RefactoringRuleContext &Context) const { 33 // FIXME: Memoize so that selection is evaluated only once. 34 Expected<SelectedASTNode> ASTSelection = 35 ASTSelectionRequirement::evaluate(Context); 36 if (!ASTSelection) 37 return ASTSelection.takeError(); 38 std::unique_ptr<SelectedASTNode> StoredSelection = 39 llvm::make_unique<SelectedASTNode>(std::move(*ASTSelection)); 40 Optional<CodeRangeASTSelection> CodeRange = CodeRangeASTSelection::create( 41 Context.getSelectionRange(), *StoredSelection); 42 if (!CodeRange) 43 return Context.createDiagnosticError( 44 Context.getSelectionRange().getBegin(), 45 diag::err_refactor_selection_invalid_ast); 46 Context.setASTSelection(std::move(StoredSelection)); 47 return std::move(*CodeRange); 48 } 49