1 //===--- RawCommentList.h - Classes for processing raw comments -*- C++ -*-===//
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_AST_RAWCOMMENTLIST_H
11 #define LLVM_CLANG_AST_RAWCOMMENTLIST_H
13 #include "clang/Basic/CommentOptions.h"
14 #include "clang/Basic/SourceManager.h"
15 #include "llvm/ADT/ArrayRef.h"
26 } // end namespace comments
31 RCK_Invalid, ///< Invalid comment
32 RCK_OrdinaryBCPL, ///< Any normal BCPL comments
33 RCK_OrdinaryC, ///< Any normal C comment
34 RCK_BCPLSlash, ///< \code /// stuff \endcode
35 RCK_BCPLExcl, ///< \code //! stuff \endcode
36 RCK_JavaDoc, ///< \code /** stuff */ \endcode
37 RCK_Qt, ///< \code /*! stuff */ \endcode, also used by HeaderDoc
38 RCK_Merged ///< Two or more documentation comments merged together
41 RawComment() : Kind(RCK_Invalid), IsAlmostTrailingComment(false) { }
43 RawComment(const SourceManager &SourceMgr, SourceRange SR,
44 const CommentOptions &CommentOpts, bool Merged);
46 CommentKind getKind() const LLVM_READONLY {
47 return (CommentKind) Kind;
50 bool isInvalid() const LLVM_READONLY {
51 return Kind == RCK_Invalid;
54 bool isMerged() const LLVM_READONLY {
55 return Kind == RCK_Merged;
58 /// Is this comment attached to any declaration?
59 bool isAttached() const LLVM_READONLY {
67 /// Returns true if it is a comment that should be put after a member:
68 /// \code ///< stuff \endcode
69 /// \code //!< stuff \endcode
70 /// \code /**< stuff */ \endcode
71 /// \code /*!< stuff */ \endcode
72 bool isTrailingComment() const LLVM_READONLY {
73 return IsTrailingComment;
76 /// Returns true if it is a probable typo:
77 /// \code //< stuff \endcode
78 /// \code /*< stuff */ \endcode
79 bool isAlmostTrailingComment() const LLVM_READONLY {
80 return IsAlmostTrailingComment;
83 /// Returns true if this comment is not a documentation comment.
84 bool isOrdinary() const LLVM_READONLY {
85 return ((Kind == RCK_OrdinaryBCPL) || (Kind == RCK_OrdinaryC));
88 /// Returns true if this comment any kind of a documentation comment.
89 bool isDocumentation() const LLVM_READONLY {
90 return !isInvalid() && !isOrdinary();
93 /// Returns raw comment text with comment markers.
94 StringRef getRawText(const SourceManager &SourceMgr) const {
98 RawText = getRawTextSlow(SourceMgr);
103 SourceRange getSourceRange() const LLVM_READONLY { return Range; }
104 SourceLocation getLocStart() const LLVM_READONLY { return Range.getBegin(); }
105 SourceLocation getLocEnd() const LLVM_READONLY { return Range.getEnd(); }
107 const char *getBriefText(const ASTContext &Context) const {
111 return extractBriefText(Context);
114 /// Returns sanitized comment text, suitable for presentation in editor UIs.
115 /// E.g. will transform:
116 /// // This is a long multiline comment.
117 /// // Parts of it might be indented.
118 /// /* The comments styles might be mixed. */
120 /// "This is a long multiline comment.\n"
121 /// " Parts of it might be indented.\n"
122 /// "The comments styles might be mixed."
123 /// Also removes leading indentation and sanitizes some common cases:
124 /// /* This is a first line.
125 /// * This is a second line. It is indented.
126 /// * This is a third line. */
128 /// /* This is a first line.
129 /// This is a second line. It is indented.
130 /// This is a third line. */
131 /// will both turn into:
132 /// "This is a first line.\n"
133 /// " This is a second line. It is indented.\n"
134 /// "This is a third line."
135 std::string getFormattedText(const SourceManager &SourceMgr,
136 DiagnosticsEngine &Diags) const;
138 /// Parse the comment, assuming it is attached to decl \c D.
139 comments::FullComment *parse(const ASTContext &Context,
140 const Preprocessor *PP, const Decl *D) const;
145 mutable StringRef RawText;
146 mutable const char *BriefText;
148 mutable bool RawTextValid : 1; ///< True if RawText is valid
149 mutable bool BriefTextValid : 1; ///< True if BriefText is valid
153 /// True if comment is attached to a declaration in ASTContext.
156 bool IsTrailingComment : 1;
157 bool IsAlmostTrailingComment : 1;
159 /// Constructor for AST deserialization.
160 RawComment(SourceRange SR, CommentKind K, bool IsTrailingComment,
161 bool IsAlmostTrailingComment) :
162 Range(SR), RawTextValid(false), BriefTextValid(false), Kind(K),
163 IsAttached(false), IsTrailingComment(IsTrailingComment),
164 IsAlmostTrailingComment(IsAlmostTrailingComment)
167 StringRef getRawTextSlow(const SourceManager &SourceMgr) const;
169 const char *extractBriefText(const ASTContext &Context) const;
171 friend class ASTReader;
174 /// Compare comments' source locations.
176 class BeforeThanCompare<RawComment> {
177 const SourceManager &SM;
180 explicit BeforeThanCompare(const SourceManager &SM) : SM(SM) { }
182 bool operator()(const RawComment &LHS, const RawComment &RHS) {
183 return SM.isBeforeInTranslationUnit(LHS.getLocStart(), RHS.getLocStart());
186 bool operator()(const RawComment *LHS, const RawComment *RHS) {
187 return operator()(*LHS, *RHS);
191 /// This class represents all comments included in the translation unit,
192 /// sorted in order of appearance in the translation unit.
193 class RawCommentList {
195 RawCommentList(SourceManager &SourceMgr) : SourceMgr(SourceMgr) {}
197 void addComment(const RawComment &RC, const CommentOptions &CommentOpts,
198 llvm::BumpPtrAllocator &Allocator);
200 ArrayRef<RawComment *> getComments() const {
205 SourceManager &SourceMgr;
206 std::vector<RawComment *> Comments;
208 void addDeserializedComments(ArrayRef<RawComment *> DeserializedComments);
210 friend class ASTReader;
213 } // end namespace clang