1 //===--- RefactoringRuleContext.h - Clang refactoring library -------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_CLANG_TOOLING_REFACTOR_REFACTORING_RULE_CONTEXT_H
11 #define LLVM_CLANG_TOOLING_REFACTOR_REFACTORING_RULE_CONTEXT_H
13 #include "clang/Basic/DiagnosticError.h"
14 #include "clang/Basic/SourceManager.h"
15 #include "clang/Tooling/Refactoring/ASTSelection.h"
23 /// The refactoring rule context stores all of the inputs that might be needed
24 /// by a refactoring action rule. It can create the specialized
25 /// \c ASTRefactoringOperation or \c PreprocessorRefactoringOperation values
26 /// that can be used by the refactoring action rules.
28 /// The following inputs are stored by the operation:
30 /// - SourceManager: a reference to a valid source manager.
32 /// - SelectionRange: an optional source selection ranges that can be used
33 /// to represent a selection in an editor.
34 class RefactoringRuleContext {
36 RefactoringRuleContext(const SourceManager &SM) : SM(SM) {}
38 const SourceManager &getSources() const { return SM; }
40 /// Returns the current source selection range as set by the
41 /// refactoring engine. Can be invalid.
42 SourceRange getSelectionRange() const { return SelectionRange; }
44 void setSelectionRange(SourceRange R) { SelectionRange = R; }
46 bool hasASTContext() const { return AST; }
48 ASTContext &getASTContext() const {
49 assert(AST && "no AST!");
53 void setASTContext(ASTContext &Context) { AST = &Context; }
55 /// Creates an llvm::Error value that contains a diagnostic.
57 /// The errors should not outlive the context.
58 llvm::Error createDiagnosticError(SourceLocation Loc, unsigned DiagID) {
59 return DiagnosticError::create(Loc, PartialDiagnostic(DiagID, DiagStorage));
62 llvm::Error createDiagnosticError(unsigned DiagID) {
63 return createDiagnosticError(SourceLocation(), DiagID);
66 void setASTSelection(std::unique_ptr<SelectedASTNode> Node) {
67 ASTNodeSelection = std::move(Node);
71 /// The source manager for the translation unit / file on which a refactoring
72 /// action might operate on.
73 const SourceManager &SM;
74 /// An optional source selection range that's commonly used to represent
75 /// a selection in an editor.
76 SourceRange SelectionRange;
77 /// An optional AST for the translation unit on which a refactoring action
79 ASTContext *AST = nullptr;
80 /// The allocator for diagnostics.
81 PartialDiagnostic::StorageAllocator DiagStorage;
83 // FIXME: Remove when memoized.
84 std::unique_ptr<SelectedASTNode> ASTNodeSelection;
87 } // end namespace tooling
88 } // end namespace clang
90 #endif // LLVM_CLANG_TOOLING_REFACTOR_REFACTORING_RULE_CONTEXT_H