clang 20.0.0git
ASTSelectionRequirements.cpp
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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
10#include "clang/AST/Attr.h"
11#include <optional>
12
13using namespace clang;
14using namespace tooling;
15
18 // FIXME: Memoize so that selection is evaluated only once.
21 if (!Range)
22 return Range.takeError();
23
24 std::optional<SelectedASTNode> Selection =
25 findSelectedASTNodes(Context.getASTContext(), *Range);
26 if (!Selection)
27 return Context.createDiagnosticError(
28 Range->getBegin(), diag::err_refactor_selection_invalid_ast);
29 return std::move(*Selection);
30}
31
33 RefactoringRuleContext &Context) const {
34 // FIXME: Memoize so that selection is evaluated only once.
35 Expected<SelectedASTNode> ASTSelection =
37 if (!ASTSelection)
38 return ASTSelection.takeError();
39 std::unique_ptr<SelectedASTNode> StoredSelection =
40 std::make_unique<SelectedASTNode>(std::move(*ASTSelection));
41 std::optional<CodeRangeASTSelection> CodeRange =
42 CodeRangeASTSelection::create(Context.getSelectionRange(),
43 *StoredSelection);
44 if (!CodeRange)
45 return Context.createDiagnosticError(
46 Context.getSelectionRange().getBegin(),
47 diag::err_refactor_selection_invalid_ast);
48 Context.setASTSelection(std::move(StoredSelection));
49 return std::move(*CodeRange);
50}
Expected< SelectedASTNode > evaluate(RefactoringRuleContext &Context) const
Expected< CodeRangeASTSelection > evaluate(RefactoringRuleContext &Context) const
static std::optional< CodeRangeASTSelection > create(SourceRange SelectionRange, const SelectedASTNode &ASTSelection)
A source range independent of the SourceManager.
Definition: Replacement.h:44
The refactoring rule context stores all of the inputs that might be needed by a refactoring action ru...
Expected< SourceRange > evaluate(RefactoringRuleContext &Context) const
std::optional< SelectedASTNode > findSelectedASTNodes(const ASTContext &Context, SourceRange SelectionRange)
Traverses the given ASTContext and creates a tree of selected AST nodes.
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