diff options
Diffstat (limited to 'include/clang/Basic/SourceManager.h')
| -rw-r--r-- | include/clang/Basic/SourceManager.h | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/include/clang/Basic/SourceManager.h b/include/clang/Basic/SourceManager.h index 5e3cfd2b3c..9657ee4f1a 100644 --- a/include/clang/Basic/SourceManager.h +++ b/include/clang/Basic/SourceManager.h @@ -417,7 +417,11 @@ public: unsigned Offset = 0); /// \brief Retrieve the memory buffer associated with the given file. - const llvm::MemoryBuffer *getMemoryBufferForFile(const FileEntry *File); + /// + /// \param Invalid If non-NULL, will be set \c true if an error + /// occurs while retrieving the memory buffer. + const llvm::MemoryBuffer *getMemoryBufferForFile(const FileEntry *File, + bool *Invalid = 0); /// \brief Override the contents of the given source file by providing an /// already-allocated buffer. @@ -438,8 +442,9 @@ public: /// getBuffer - Return the buffer for the specified FileID. If there is an /// error opening this buffer the first time, this manufactures a temporary /// buffer and returns a non-empty error string. - const llvm::MemoryBuffer *getBuffer(FileID FID) const { - return getSLocEntry(FID).getFile().getContentCache()->getBuffer(Diag); + const llvm::MemoryBuffer *getBuffer(FileID FID, bool *Invalid = 0) const { + return getSLocEntry(FID).getFile().getContentCache()->getBuffer(Diag, + Invalid); } /// getFileEntryForID - Returns the FileEntry record for the provided FileID. @@ -571,31 +576,37 @@ public: /// getCharacterData - Return a pointer to the start of the specified location /// in the appropriate spelling MemoryBuffer. - const char *getCharacterData(SourceLocation SL) const; + /// + /// \param Invalid If non-NULL, will be set \c true if an error occurs. + const char *getCharacterData(SourceLocation SL, bool *Invalid = 0) const; /// getColumnNumber - Return the column # for the specified file position. /// This is significantly cheaper to compute than the line number. This /// returns zero if the column number isn't known. This may only be called on /// a file sloc, so you must choose a spelling or instantiation location /// before calling this method. - unsigned getColumnNumber(FileID FID, unsigned FilePos) const; - unsigned getSpellingColumnNumber(SourceLocation Loc) const; - unsigned getInstantiationColumnNumber(SourceLocation Loc) const; + unsigned getColumnNumber(FileID FID, unsigned FilePos, + bool *Invalid = 0) const; + unsigned getSpellingColumnNumber(SourceLocation Loc, + bool *Invalid = 0) const; + unsigned getInstantiationColumnNumber(SourceLocation Loc, + bool *Invalid = 0) const; /// getLineNumber - Given a SourceLocation, return the spelling line number /// for the position indicated. This requires building and caching a table of /// line offsets for the MemoryBuffer, so this is not cheap: use only when /// about to emit a diagnostic. - unsigned getLineNumber(FileID FID, unsigned FilePos) const; + unsigned getLineNumber(FileID FID, unsigned FilePos, bool *Invalid = 0) const; - unsigned getInstantiationLineNumber(SourceLocation Loc) const; - unsigned getSpellingLineNumber(SourceLocation Loc) const; + unsigned getInstantiationLineNumber(SourceLocation Loc, + bool *Invalid = 0) const; + unsigned getSpellingLineNumber(SourceLocation Loc, bool *Invalid = 0) const; /// Return the filename or buffer identifier of the buffer the location is in. /// Note that this name does not respect #line directives. Use getPresumedLoc /// for normal clients. - const char *getBufferName(SourceLocation Loc) const; + const char *getBufferName(SourceLocation Loc, bool *Invalid = 0) const; /// getFileCharacteristic - return the file characteristic of the specified /// source location, indicating whether this is a normal file, a system |