fix a crash in RecursiveASTVisitor's child classes (PR8403); reviewed by chandlerc.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113038 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/TemplateBase.cpp b/lib/AST/TemplateBase.cpp
index 351aebe..a3bf145 100644
--- a/lib/AST/TemplateBase.cpp
+++ b/lib/AST/TemplateBase.cpp
@@ -125,19 +125,22 @@
switch (Argument.getKind()) {
case TemplateArgument::Expression:
return getSourceExpression()->getSourceRange();
-
+
case TemplateArgument::Declaration:
return getSourceDeclExpression()->getSourceRange();
-
+
case TemplateArgument::Type:
- return getTypeSourceInfo()->getTypeLoc().getSourceRange();
-
+ if (TypeSourceInfo *TSI = getTypeSourceInfo())
+ return TSI->getTypeLoc().getSourceRange();
+ else
+ return SourceRange();
+
case TemplateArgument::Template:
if (getTemplateQualifierRange().isValid())
return SourceRange(getTemplateQualifierRange().getBegin(),
getTemplateNameLoc());
return SourceRange(getTemplateNameLoc());
-
+
case TemplateArgument::Integral:
case TemplateArgument::Pack:
case TemplateArgument::Null: