[clang] 8e750b1 - Make RecursiveASTVisitor call WalkUpFrom for operators when the data recursion queue is absent

[Dmitri Gribenko via cfe-commits]

Author: Dmitri Gribenko
Date: 2020-07-06T13:38:01+02:00
New Revision: 8e750b1f0a2b6b5174dc49adf20e6f863c28e3cd

URL: https://github.com/llvm/llvm-project/commit/8e750b1f0a2b6b5174dc49adf20e6f863c28e3cd
DIFF: https://github.com/llvm/llvm-project/commit/8e750b1f0a2b6b5174dc49adf20e6f863c28e3cd.diff

LOG: Make RecursiveASTVisitor call WalkUpFrom for operators when the data recursion queue is absent

Reviewers: eduucaldas, ymandel, rsmith

Reviewed By: eduucaldas

Subscribers: gribozavr2, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D82889

Added: 
    

Modified: 
    clang/include/clang/AST/RecursiveASTVisitor.h
    clang/unittests/Tooling/RecursiveASTVisitorTests/Callbacks.cpp

Removed: 
    


################################################################################
diff  --git a/clang/include/clang/AST/RecursiveASTVisitor.h b/clang/include/clang/AST/RecursiveASTVisitor.h
index 9d93f1e99666..0d7c2b81512c 100644
--- a/clang/include/clang/AST/RecursiveASTVisitor.h
+++ b/clang/include/clang/AST/RecursiveASTVisitor.h
@@ -416,6 +416,8 @@ template <typename Derived> class RecursiveASTVisitor {
     if (!getDerived().shouldTraversePostOrder())                               \
       TRY_TO(WalkUpFromUnary##NAME(S));                                        \
     TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getSubExpr());                          \
+    if (!Queue && getDerived().shouldTraversePostOrder())                      \
+      TRY_TO(WalkUpFromUnary##NAME(S));                                        \
     return true;                                                               \
   }                                                                            \
   bool WalkUpFromUnary##NAME(UnaryOperator *S) {                               \
@@ -437,6 +439,8 @@ template <typename Derived> class RecursiveASTVisitor {
       TRY_TO(WalkUpFromBin##NAME(S));                                          \
     TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getLHS());                              \
     TRY_TO_TRAVERSE_OR_ENQUEUE_STMT(S->getRHS());                              \
+    if (!Queue && getDerived().shouldTraversePostOrder())                      \
+      TRY_TO(WalkUpFromBin##NAME(S));                                          \
     return true;                                                               \
   }                                                                            \
   bool WalkUpFromBin##NAME(BINOP_TYPE *S) {                                    \

diff  --git a/clang/unittests/Tooling/RecursiveASTVisitorTests/Callbacks.cpp b/clang/unittests/Tooling/RecursiveASTVisitorTests/Callbacks.cpp
index 0a4e9aa1e9e8..70c7eb37ad4c 100644
--- a/clang/unittests/Tooling/RecursiveASTVisitorTests/Callbacks.cpp
+++ b/clang/unittests/Tooling/RecursiveASTVisitorTests/Callbacks.cpp
@@ -606,14 +606,13 @@ TraverseUnaryMinus UnaryOperator(-)
 WalkUpFromStmt IntegerLiteral(3)
 )txt"));
 
-  // FIXME: The following log should include a call to WalkUpFromStmt for
-  // UnaryOperator(-).
   EXPECT_TRUE(visitorCallbackLogEqual(
       RecordingVisitor(ShouldTraversePostOrder::Yes), Code,
       R"txt(
 WalkUpFromStmt IntegerLiteral(1)
 TraverseUnaryMinus UnaryOperator(-)
   WalkUpFromStmt IntegerLiteral(2)
+  WalkUpFromStmt UnaryOperator(-)
 WalkUpFromStmt IntegerLiteral(3)
 WalkUpFromStmt CompoundStmt
 )txt"));
@@ -675,7 +674,6 @@ WalkUpFromExpr IntegerLiteral(3)
   WalkUpFromStmt IntegerLiteral(3)
 )txt"));
 
-  // FIXME: The following log should include a call to WalkUpFromUnaryMinus.
   EXPECT_TRUE(visitorCallbackLogEqual(
       RecordingVisitor(ShouldTraversePostOrder::Yes), Code,
       R"txt(
@@ -684,6 +682,9 @@ WalkUpFromExpr IntegerLiteral(1)
 TraverseUnaryMinus UnaryOperator(-)
   WalkUpFromExpr IntegerLiteral(2)
     WalkUpFromStmt IntegerLiteral(2)
+  WalkUpFromUnaryMinus UnaryOperator(-)
+    WalkUpFromExpr UnaryOperator(-)
+      WalkUpFromStmt UnaryOperator(-)
 WalkUpFromExpr IntegerLiteral(3)
   WalkUpFromStmt IntegerLiteral(3)
 WalkUpFromStmt CompoundStmt
@@ -996,8 +997,6 @@ TraverseBinAdd BinaryOperator(+)
 WalkUpFromStmt IntegerLiteral(4)
 )txt"));
 
-  // FIXME: The following log should include a call to WalkUpFromStmt for
-  // BinaryOperator(+).
   EXPECT_TRUE(visitorCallbackLogEqual(
       RecordingVisitor(ShouldTraversePostOrder::Yes), Code,
       R"txt(
@@ -1005,6 +1004,7 @@ WalkUpFromStmt IntegerLiteral(1)
 TraverseBinAdd BinaryOperator(+)
   WalkUpFromStmt IntegerLiteral(2)
   WalkUpFromStmt IntegerLiteral(3)
+  WalkUpFromStmt BinaryOperator(+)
 WalkUpFromStmt IntegerLiteral(4)
 WalkUpFromStmt CompoundStmt
 )txt"));
@@ -1067,7 +1067,6 @@ WalkUpFromExpr IntegerLiteral(4)
   WalkUpFromStmt IntegerLiteral(4)
 )txt"));
 
-  // FIXME: The following log should include a call to WalkUpFromBinAdd.
   EXPECT_TRUE(visitorCallbackLogEqual(
       RecordingVisitor(ShouldTraversePostOrder::Yes), Code,
       R"txt(
@@ -1078,6 +1077,9 @@ TraverseBinAdd BinaryOperator(+)
     WalkUpFromStmt IntegerLiteral(2)
   WalkUpFromExpr IntegerLiteral(3)
     WalkUpFromStmt IntegerLiteral(3)
+  WalkUpFromBinAdd BinaryOperator(+)
+    WalkUpFromExpr BinaryOperator(+)
+      WalkUpFromStmt BinaryOperator(+)
 WalkUpFromExpr IntegerLiteral(4)
   WalkUpFromStmt IntegerLiteral(4)
 WalkUpFromStmt CompoundStmt
@@ -1396,8 +1398,6 @@ TraverseBinAddAssign CompoundAssignOperator(+=)
 WalkUpFromStmt IntegerLiteral(3)
 )txt"));
 
-  // FIXME: The following log should include a call to WalkUpFromStmt for
-  // CompoundAssignOperator(+=).
   EXPECT_TRUE(visitorCallbackLogEqual(
       RecordingVisitor(ShouldTraversePostOrder::Yes), Code,
       R"txt(
@@ -1405,6 +1405,7 @@ WalkUpFromStmt IntegerLiteral(1)
 TraverseBinAddAssign CompoundAssignOperator(+=)
   WalkUpFromStmt DeclRefExpr(a)
   WalkUpFromStmt IntegerLiteral(2)
+  WalkUpFromStmt CompoundAssignOperator(+=)
 WalkUpFromStmt IntegerLiteral(3)
 WalkUpFromStmt CompoundStmt
 )txt"));
@@ -1470,7 +1471,6 @@ WalkUpFromExpr IntegerLiteral(3)
   WalkUpFromStmt IntegerLiteral(3)
 )txt"));
 
-  // FIXME: The following log should include a call to WalkUpFromBinAddAssign.
   EXPECT_TRUE(visitorCallbackLogEqual(
       RecordingVisitor(ShouldTraversePostOrder::Yes), Code,
       R"txt(
@@ -1481,6 +1481,9 @@ TraverseBinAddAssign CompoundAssignOperator(+=)
     WalkUpFromStmt DeclRefExpr(a)
   WalkUpFromExpr IntegerLiteral(2)
     WalkUpFromStmt IntegerLiteral(2)
+  WalkUpFromBinAddAssign CompoundAssignOperator(+=)
+    WalkUpFromExpr CompoundAssignOperator(+=)
+      WalkUpFromStmt CompoundAssignOperator(+=)
 WalkUpFromExpr IntegerLiteral(3)
   WalkUpFromStmt IntegerLiteral(3)
 WalkUpFromStmt CompoundStmt