[PATCH] D37005: [clang-diff] Initial implementation of patching

[Johannes Altmanninger via Phabricator via cfe-commits]

johannes added inline comments.


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Comment at: include/clang/Tooling/ASTDiff/ASTDiff.h:73
 public:
+  /// Empty (invalid) SyntaxTree.
+  SyntaxTree();
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arphaman wrote:
> Why do you need to create an empty tree? What about using llvm::Optional instead?
ok, i use optional now instead in the unittest


https://reviews.llvm.org/D37005