Author: george.karpenkov Date: Fri Sep 14 19:01:47 2018 New Revision: 342309
URL: http://llvm.org/viewvc/llvm-project?rev=342309&view=rev Log: Support generating unique identifiers for Stmt objects The generated identifiers are stable across multiple runs, and can be a great debug or visualization aid. Differential Revision: https://reviews.llvm.org/D51822 Modified: cfe/trunk/include/clang/AST/Stmt.h cfe/trunk/lib/AST/Stmt.cpp Modified: cfe/trunk/include/clang/AST/Stmt.h URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/Stmt.h?rev=342309&r1=342308&r2=342309&view=diff ============================================================================== --- cfe/trunk/include/clang/AST/Stmt.h (original) +++ cfe/trunk/include/clang/AST/Stmt.h Fri Sep 14 19:01:47 2018 @@ -413,6 +413,9 @@ public: void dump(raw_ostream &OS, SourceManager &SM) const; void dump(raw_ostream &OS) const; + /// \return Unique reproducible object identifier + int64_t getID(const ASTContext &Context) const; + /// dumpColor - same as dump(), but forces color highlighting. void dumpColor() const; Modified: cfe/trunk/lib/AST/Stmt.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/Stmt.cpp?rev=342309&r1=342308&r2=342309&view=diff ============================================================================== --- cfe/trunk/lib/AST/Stmt.cpp (original) +++ cfe/trunk/lib/AST/Stmt.cpp Fri Sep 14 19:01:47 2018 @@ -302,6 +302,14 @@ SourceLocation Stmt::getEndLoc() const { llvm_unreachable("unknown statement kind"); } +int64_t Stmt::getID(const ASTContext &Context) const { + Optional<int64_t> Out = Context.getAllocator().identifyObject(this); + assert(Out && "Wrong allocator used"); + assert(*Out % alignof(Stmt) == 0 && "Wrong alignment information"); + return *Out / alignof(Stmt); + +} + CompoundStmt::CompoundStmt(ArrayRef<Stmt *> Stmts, SourceLocation LB, SourceLocation RB) : Stmt(CompoundStmtClass), LBraceLoc(LB), RBraceLoc(RB) { _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
