[cfe-commits] [PATCH] Fix for -ast-dump-filter

[Alexander Kornienko]

Hi djasper, klimek, rsmith,

-ast-dump-filter implementation used to stop AST traversal after traversing a NULL Decl node.

Added test and fixed.

http://llvm-reviews.chandlerc.com/D93

Files:
  tools/clang/test/Tooling/clang-check-ast-dump.cpp
  tools/clang/lib/Frontend/ASTConsumers.cpp

Index: tools/clang/test/Tooling/clang-check-ast-dump.cpp
===================================================================
--- tools/clang/test/Tooling/clang-check-ast-dump.cpp
+++ tools/clang/test/Tooling/clang-check-ast-dump.cpp
@@ -26,6 +26,9 @@
 // RUN: clang-check -ast-dump -ast-dump-filter test_namespace::TheClass::n "%s" -- 2>&1 | FileCheck -check-prefix CHECK-ATTR %s
 // CHECK-ATTR: test_namespace
 // CHECK-ATTR-NEXT: int n __attribute__((aligned((BinaryOperator
+//
+// RUN: clang-check -ast-dump -ast-dump-filter test_namespace::AfterNullNode "%s" -- 2>&1 | FileCheck -check-prefix CHECK-AFTER-NULL %s
+// CHECK-AFTER-NULL: class AfterNullNode
 
 namespace test_namespace {
 
@@ -40,4 +43,7 @@
 // Used to fail with -ast-dump-filter X
 template<template<typename T> class C> class Z {};
 
+// Check that traversal continues after the previous construct.
+class AfterNullNode {};
+
 }
Index: tools/clang/lib/Frontend/ASTConsumers.cpp
===================================================================
--- tools/clang/lib/Frontend/ASTConsumers.cpp
+++ tools/clang/lib/Frontend/ASTConsumers.cpp
@@ -58,9 +58,7 @@
     bool shouldWalkTypesOfTypeLocs() const { return false; }
 
     bool TraverseDecl(Decl *D) {
-      if (D == NULL)
-        return false;
-      if (filterMatches(D)) {
+      if (D != NULL && filterMatches(D)) {
         Out.changeColor(llvm::raw_ostream::BLUE) <<
             (Dump ? "Dumping " : "Printing ") << getName(D) << ":\n";
         Out.resetColor();
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