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-rw-r--r--include/clang/Lex/Lexer.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/clang/Lex/Lexer.h b/include/clang/Lex/Lexer.h
index 69cfe62e4bdb..97a222f4a703 100644
--- a/include/clang/Lex/Lexer.h
+++ b/include/clang/Lex/Lexer.h
@@ -265,6 +265,21 @@ public:
/// Return the current location in the buffer.
const char *getBufferLocation() const { return BufferPtr; }
+ /// Returns the current lexing offset.
+ unsigned getCurrentBufferOffset() {
+ assert(BufferPtr >= BufferStart && "Invalid buffer state");
+ return BufferPtr - BufferStart;
+ }
+
+ /// Skip over \p NumBytes bytes.
+ ///
+ /// If the skip is successful, the next token will be lexed from the new
+ /// offset. The lexer also assumes that we skipped to the start of the line.
+ ///
+ /// \returns true if the skip failed (new offset would have been past the
+ /// end of the buffer), false otherwise.
+ bool skipOver(unsigned NumBytes);
+
/// Stringify - Convert the specified string into a C string by i) escaping
/// '\\' and " characters and ii) replacing newline character(s) with "\\n".
/// If Charify is true, this escapes the ' character instead of ".