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-rw-r--r--src/libexpr/primops.cc12
1 files changed, 1 insertions, 11 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index 0e81f7b72fae..66173cdaf05f 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -401,17 +401,7 @@ static void prim_derivationStrict(EvalState & state, Value * * args, Value & v)
         HashType ht = parseHashType(outputHashAlgo);
         if (ht == htUnknown)
             throw EvalError(format("unknown hash algorithm `%1%'") % outputHashAlgo);
-        Hash h(ht);
-        if (outputHash.size() == h.hashSize * 2)
-            /* hexadecimal representation */
-            h = parseHash(ht, outputHash);
-        else if (outputHash.size() == hashLength32(h))
-            /* base-32 representation */
-            h = parseHash32(ht, outputHash);
-        else
-            throw Error(format("hash `%1%' has wrong length for hash type `%2%'")
-                % outputHash % outputHashAlgo);
-        string s = outputHash;
+        Hash h = parseHash16or32(ht, outputHash);
         outputHash = printHash(h);
         if (outputHashRecursive) outputHashAlgo = "r:" + outputHashAlgo;