1 //===--- ASTSelectionRequirements.cpp - Clang refactoring library ---------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Tooling/Refactoring/RefactoringActionRuleRequirements.h" 10 #include <optional> 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 std::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 std::make_unique<SelectedASTNode>(std::move(*ASTSelection)); 40 std::optional<CodeRangeASTSelection> CodeRange = 41 CodeRangeASTSelection::create(Context.getSelectionRange(), 42 *StoredSelection); 43 if (!CodeRange) 44 return Context.createDiagnosticError( 45 Context.getSelectionRange().getBegin(), 46 diag::err_refactor_selection_invalid_ast); 47 Context.setASTSelection(std::move(StoredSelection)); 48 return std::move(*CodeRange); 49 } 50