Use digest size instead of hardcoding it.

llvm-svn: 347236

1 files changed, 1 insertions, 1 deletions

diff --git a/clang-tools-extra/clangd/index/Serialization.cpp b/clang-tools-extra/clangd/index/Serialization.cpp
index c1b42eadae0..958501de8b7 100644
--- a/clang-tools-extra/clangd/index/Serialization.cpp
+++ b/clang-tools-extra/clangd/index/Serialization.cpp
@@ -365,8 +365,8 @@ Expected<IndexFileIn> readRIFF(StringRef Data) {
   IndexFileIn Result;
   if (Chunks.count("hash")) {
     Reader Hash(Chunks.lookup("hash"));
-    llvm::StringRef Digest = Hash.consume(20);
     Result.Digest.emplace();
+    llvm::StringRef Digest = Hash.consume(Result.Digest->size());
     std::copy(Digest.bytes_begin(), Digest.bytes_end(), Result.Digest->begin());
   }