class InBeforeInTUCacheEntry

Declaration

class InBeforeInTUCacheEntry { /* full declaration omitted */ };

Description

Holds the cache used by isBeforeInTranslationUnit. The cache structure is complex enough to be worth breaking out of SourceManager.

Declared at: clang/include/clang/Basic/SourceManager.h:539

Member Variables

private clang::FileID LQueryFID

If these match up with a subsequent query, the result can be reused.

private clang::FileID RQueryFID

If these match up with a subsequent query, the result can be reused.

private bool IsLQFIDBeforeRQFID

This is used to compare macro expansion locations.

private clang::FileID CommonFID

The file found in common between the two # include traces, i.e., the nearest common ancestor of the # include tree.

private unsigned int LCommonOffset

Usually, this represents the location of the # include for QueryFID, but if LQueryFID is a parent of RQueryFID (or vice versa) then these can be a random token in the parent.

private unsigned int RCommonOffset

Usually, this represents the location of the # include for QueryFID, but if LQueryFID is a parent of RQueryFID (or vice versa) then these can be a random token in the parent.

Method Overview

• public void clear()
• public bool getCachedResult(unsigned int LOffset, unsigned int ROffset) const
• public bool isCacheValid(clang::FileID LHS, clang::FileID RHS) const
• public void setCommonLoc(clang::FileID commonFID, unsigned int lCommonOffset, unsigned int rCommonOffset)
• public void setQueryFIDs(clang::FileID LHS, clang::FileID RHS, bool isLFIDBeforeRFID)

Methods

¶void clear()

Declared at: clang/include/clang/Basic/SourceManager.h:597

¶bool getCachedResult(unsigned int LOffset,
                     unsigned int ROffset) const

Description

If the cache is valid, compute the result given the specified offsets in the LHS/RHS FileID's.

Declared at: clang/include/clang/Basic/SourceManager.h:572

Parameters

unsigned int LOffset

unsigned int ROffset

¶bool isCacheValid(clang::FileID LHS,
                  clang::FileID RHS) const

Description

Return true if the currently cached values match up with the specified LHS/RHS query. If not, we can't use the cache.

Declared at: clang/include/clang/Basic/SourceManager.h:566

Parameters

clang::FileID LHS

clang::FileID RHS

¶void setCommonLoc(clang::FileID commonFID,
                  unsigned int lCommonOffset,
                  unsigned int rCommonOffset)

Declared at: clang/include/clang/Basic/SourceManager.h:602

Parameters

clang::FileID commonFID

unsigned int lCommonOffset

unsigned int rCommonOffset

¶void setQueryFIDs(clang::FileID LHS,
                  clang::FileID RHS,
                  bool isLFIDBeforeRFID)

Description

Set up a new query.

Declared at: clang/include/clang/Basic/SourceManager.h:590

Parameters

clang::FileID LHS

clang::FileID RHS

bool isLFIDBeforeRFID