================
@@ -383,6 +383,9 @@ class Preprocessor {
llvm::DenseMap<FileID, SmallVector<const char *>> CheckPoints;
unsigned CheckPointCounter = 0;
+ /// Whether to record lexer check points for diagnostic snippet highlighting.
+ bool RecordCheckPoints = false;
----------------
yronglin wrote:
IIUC, this change shouldn't have a significant performance impact; it simply
reduces the number of flags in the Preprocessor. Since it's exactly the same as
ShowColors, I tend to use ShowColors directly. If whether to record check
points is determined by multiple conditions, then I'd prefer to add a new flag.
https://github.com/llvm/llvm-project/pull/204926
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