Extend DeclarationName to support C++ overloaded operators, e.g.,

operator+, directly, using the same mechanism as all other special
names.

Removed the "special" identifiers for the overloaded operators from
the identifier table and IdentifierInfo data structure. IdentifierInfo
is back to representing only real identifiers.

Added a new Action, ActOnOperatorFunctionIdExpr, that builds an
expression from an parsed operator-function-id (e.g., "operator
+"). ActOnIdentifierExpr used to do this job, but
operator-function-ids are no longer represented by IdentifierInfo's.

Extended Declarator to store overloaded operator names. 
Sema::GetNameForDeclarator now knows how to turn the operator
name into a DeclarationName for the overloaded operator. 

Except for (perhaps) consolidating the functionality of
ActOnIdentifier, ActOnOperatorFunctionIdExpr, and
ActOnConversionFunctionExpr into a common routine that builds an
appropriate DeclRefExpr by looking up a DeclarationName, all of the
work on normalizing declaration names should be complete with this
commit.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59526 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 22 deletions

diff --git a/lib/Basic/IdentifierTable.cpp b/lib/Basic/IdentifierTable.cpp
index 38bdb7e630..1bef76688c 100644
--- a/lib/Basic/IdentifierTable.cpp
+++ b/lib/Basic/IdentifierTable.cpp
@@ -28,7 +28,6 @@ using namespace clang;
 IdentifierInfo::IdentifierInfo() {
   TokenID = tok::identifier;
   ObjCOrBuiltinID = 0;
-  OperatorID = 0;
   HasMacro = false;
   IsExtension = false;
   IsPoisoned = false;
@@ -47,7 +46,6 @@ IdentifierTable::IdentifierTable(const LangOptions &LangOpts)
   // Populate the identifier table with info about keywords for the current
   // language.
   AddKeywords(LangOpts);
-  AddOverloadedOperators();
 }
 
 // This cstor is intended to be used only for serialization.
@@ -163,26 +161,6 @@ void IdentifierTable::AddKeywords(const LangOptions &LangOpts) {
 #include "clang/Basic/TokenKinds.def"
 }
 
-/// addOperatorPrefix - Add the prefix "operator" (possible with a
-/// space after it) to the given operator symbol, and return the
-/// result.
-static std::string addOperatorPrefix(const char* Symbol) {
-  std::string result = "operator";
-  if (Symbol[0] >= 'a' && Symbol[0] <= 'z')
-    result += ' ';
-  result += Symbol;
-  return result;
-}
-
-/// AddOverloadedOperators - Register the name of all C++ overloadable
-/// operators ("operator+", "operator[]", etc.)
-void IdentifierTable::AddOverloadedOperators() {
-#define OVERLOADED_OPERATOR(Name,Spelling,Token, Unary, Binary, MemberOnly) \
-  OverloadedOperators[OO_##Name] = &get(addOperatorPrefix(Spelling));   \
-  OverloadedOperators[OO_##Name]->setOverloadedOperatorID(OO_##Name);
-#include "clang/Basic/OperatorKinds.def"
-}
-
 tok::PPKeywordKind IdentifierInfo::getPPKeywordID() const {
   // We use a perfect hash function here involving the length of the keyword,
   // the first and third character.  For preprocessor ID's there are no