Add condition expression result to if and elif callbacks.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186547 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Lex/PPCallbacks.h

@@ -243,18 +243,21 @@ public:
   /// \brief Hook called whenever an \#if is seen.
   /// \param Loc the source location of the directive.
   /// \param ConditionRange The SourceRange of the expression being tested.
+  /// \param ConditionValue The evaluated value of the condition.
   ///
   // FIXME: better to pass in a list (or tree!) of Tokens.
-  virtual void If(SourceLocation Loc, SourceRange ConditionRange) {
+  virtual void If(SourceLocation Loc, SourceRange ConditionRange,
+                  bool ConditionValue) {
   }
 
   /// \brief Hook called whenever an \#elif is seen.
   /// \param Loc the source location of the directive.
   /// \param ConditionRange The SourceRange of the expression being tested.
+  /// \param ConditionValue The evaluated value of the condition.
   /// \param IfLoc the source location of the \#if/\#ifdef/\#ifndef directive.
   // FIXME: better to pass in a list (or tree!) of Tokens.
   virtual void Elif(SourceLocation Loc, SourceRange ConditionRange,
-                    SourceLocation IfLoc) {
+                    bool ConditionValue, SourceLocation IfLoc) {
   }
 
   /// \brief Hook called whenever an \#ifdef is seen.
@@ -418,16 +421,17 @@ public:
   }
 
   /// \brief Hook called whenever an \#if is seen.
-  virtual void If(SourceLocation Loc, SourceRange ConditionRange) {
-    First->If(Loc, ConditionRange);
-    Second->If(Loc, ConditionRange);
+  virtual void If(SourceLocation Loc, SourceRange ConditionRange,
+                  bool ConditionValue) {
+    First->If(Loc, ConditionRange, ConditionValue);
+    Second->If(Loc, ConditionRange, ConditionValue);
   }
 
-  /// \brief Hook called whenever an \#if is seen.
+  /// \brief Hook called whenever an \#elif is seen.
   virtual void Elif(SourceLocation Loc, SourceRange ConditionRange,
-                    SourceLocation IfLoc) {
-    First->Elif(Loc, ConditionRange, IfLoc);
-    Second->Elif(Loc, ConditionRange, IfLoc);
+                    bool ConditionValue, SourceLocation IfLoc) {
+    First->Elif(Loc, ConditionRange, ConditionValue, IfLoc);
+    Second->Elif(Loc, ConditionRange, ConditionValue, IfLoc);
   }
 
   /// \brief Hook called whenever an \#ifdef is seen.

include/clang/Lex/PPConditionalDirectiveRecord.h

@@ -86,9 +86,10 @@ public:
   SourceLocation findConditionalDirectiveRegionLoc(SourceLocation Loc) const;
 
 private:
-  virtual void If(SourceLocation Loc, SourceRange ConditionRange);
+  virtual void If(SourceLocation Loc, SourceRange ConditionRange,
+                  bool ConditionValue);
   virtual void Elif(SourceLocation Loc, SourceRange ConditionRange,
-                    SourceLocation IfLoc);
+                    bool ConditionValue, SourceLocation IfLoc);
   virtual void Ifdef(SourceLocation Loc, const Token &MacroNameTok,
                      const MacroDirective *MD);
   virtual void Ifndef(SourceLocation Loc, const Token &MacroNameTok,

lib/Lex/PPConditionalDirectiveRecord.cpp

@@ -76,7 +76,8 @@ void PPConditionalDirectiveRecord::addCondDirectiveLoc(
 }
 
 void PPConditionalDirectiveRecord::If(SourceLocation Loc,
-                                      SourceRange ConditionRange) {
+                                      SourceRange ConditionRange,
+                                      bool ConditionValue) {
   addCondDirectiveLoc(CondDirectiveLoc(Loc, CondDirectiveStack.back()));
   CondDirectiveStack.push_back(Loc);
 }
@@ -97,6 +98,7 @@ void PPConditionalDirectiveRecord::Ifndef(SourceLocation Loc,
 
 void PPConditionalDirectiveRecord::Elif(SourceLocation Loc,
                                         SourceRange ConditionRange,
+                                        bool ConditionValue,
                                         SourceLocation IfLoc) {
   addCondDirectiveLoc(CondDirectiveLoc(Loc, CondDirectiveStack.back()));
   CondDirectiveStack.back() = Loc;

lib/Lex/PPDirectives.cpp

@@ -430,7 +430,7 @@ void Preprocessor::SkipExcludedConditionalBlock(SourceLocation IfTokenLoc,
           if (Callbacks)
             Callbacks->Elif(Tok.getLocation(),
                             SourceRange(ConditionalBegin, ConditionalEnd),
-                            CondInfo.IfLoc);
+                            ShouldEnter, CondInfo.IfLoc);
           break;
         }
       }
@@ -2181,7 +2181,8 @@ void Preprocessor::HandleIfDirective(Token &IfToken,
 
   if (Callbacks)
     Callbacks->If(IfToken.getLocation(),
-                  SourceRange(ConditionalBegin, ConditionalEnd));
+                  SourceRange(ConditionalBegin, ConditionalEnd),
+                  ConditionalTrue);
 
   // Should we include the stuff contained by this directive?
   if (ConditionalTrue) {
@@ -2277,7 +2278,8 @@ void Preprocessor::HandleElifDirective(Token &ElifToken) {
   
   if (Callbacks)
     Callbacks->Elif(ElifToken.getLocation(),
-                    SourceRange(ConditionalBegin, ConditionalEnd), CI.IfLoc);
+                    SourceRange(ConditionalBegin, ConditionalEnd),
+                    true, CI.IfLoc);
 
   // Finally, skip the rest of the contents of this block.
   SkipExcludedConditionalBlock(CI.IfLoc, /*Foundnonskip*/true,