Add specialization args test (#2444)

* Added specialization args test; small cleanup changes to slang-digest.h

* Moved slang::Digest inside namespace Slang

3 files changed, 10 insertions, 18 deletions

diff --git a/source/core/slang-digest.h b/source/core/slang-digest.h
index d1bc80b40..47c0cd8f7 100644
--- a/source/core/slang-digest.h
+++ b/source/core/slang-digest.h
@@ -4,6 +4,8 @@
 
 namespace Slang
 {
+    using slang::Digest;
+
     // Wrapper struct that holds objects necessary for hashing.
     struct DigestBuilder
     {
@@ -19,9 +21,11 @@ namespace Slang
             hashGen.update(&context, item);
         }
 
-        void finalize(slang::Digest* outHash)
+        Digest finalize()
         {
-            hashGen.finalize(&context, outHash);
+            Digest hash;
+            hashGen.finalize(&context, &hash);
+            return hash;
         }
 
     private:
diff --git a/source/slang/slang-hash-utils.h b/source/slang/slang-hash-utils.h
index d0d610cb8..62232dd21 100644
--- a/source/slang/slang-hash-utils.h
+++ b/source/slang/slang-hash-utils.h
@@ -12,11 +12,7 @@ namespace Slang
     {
         DigestBuilder builder;
         builder.addToDigest(text);
-
-        slang::Digest textHash;
-        builder.finalize(&textHash);
-
-        return textHash;
+        return builder.finalize();
     }
 
     // Combines the two provided hashes.
@@ -25,10 +21,7 @@ namespace Slang
         DigestBuilder builder;
         builder.addToDigest(hashA);
         builder.addToDigest(hashB);
-
-        slang::Digest combined;
-        builder.finalize(&combined);
-        return combined;
+        return builder.finalize();
     }
 
     // Returns the stored hash in checksum as a String.
diff --git a/source/slang/slang.cpp b/source/slang/slang.cpp
index a6dcf8ab2..20cad2465 100644
--- a/source/slang/slang.cpp
+++ b/source/slang/slang.cpp
@@ -3482,19 +3482,14 @@ SLANG_NO_THROW void SLANG_MCALL ComponentType::computeDependencyBasedHash(
     auto entryPointNameOverride = getEntryPointNameOverride(entryPointIndex);
     builder.addToDigest(entryPointNameOverride);
 
-    slang::Digest hash;
-    builder.finalize(&hash);
-    *outHash = hash;
+    *outHash = builder.finalize();
 }
 
 SLANG_NO_THROW void SLANG_MCALL ComponentType::computeASTBasedHash(slang::Digest* outHash)
 {
     DigestBuilder builder;
     updateASTBasedHash(builder);
-
-    slang::Digest hash;
-    builder.finalize(&hash);
-    *outHash = hash;
+    *outHash = builder.finalize();
 }
 
 SLANG_NO_THROW SlangResult SLANG_MCALL ComponentType::getEntryPointHostCallable(