[all-commits] [llvm/llvm-project] a0d05e: Handle interactions between reserved identifier an...

[serge-sans-paille via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a0d05ed848990c06c6dcdfc2e37bc8f13f7fe470
      https://github.com/llvm/llvm-project/commit/a0d05ed848990c06c6dcdfc2e37bc8f13f7fe470
  Author: serge-sans-paille <sguelton at redhat.com>
  Date:   2021-06-23 (Wed, 23 Jun 2021)

  Changed paths:
    M clang/include/clang/Sema/Sema.h
    M clang/lib/AST/Decl.cpp
    M clang/lib/Parse/ParseExprCXX.cpp
    M clang/lib/Sema/SemaExprCXX.cpp
    M clang/test/Sema/reserved-identifier.cpp

  Log Message:
  -----------
  Handle interactions between reserved identifier and user-defined suffixes

According to https://eel.is/c++draft/over.literal

> double operator""_Bq(long double);  // OK: does not use the reserved identifier _­Bq ([lex.name])
> double operator"" _Bq(long double); // ill-formed, no diagnostic required: uses the reserved identifier _­Bq ([lex.name])

Obey that rule by keeping track of the operator literal name status wrt. leading whitespace.

Fix: https://bugs.llvm.org/show_bug.cgi?id=50644

Differential Revision: https://reviews.llvm.org/D104299