1 files changed, 11 insertions, 1 deletions
diff --git a/source/compiler-core/slang-source-loc.cpp b/source/compiler-core/slang-source-loc.cpp
index fe08f8dfc..872c40f0d 100644
--- a/source/compiler-core/slang-source-loc.cpp
+++ b/source/compiler-core/slang-source-loc.cpp
@@ -4,7 +4,6 @@
 #include "../core/slang-string-util.h"
 #include "../core/slang-string-escape-util.h"
 #include "../core/slang-char-encode.h"
-
 #include "slang-artifact-representation-impl.h"
 #include "slang-artifact-impl.h"
 #include "slang-artifact-util.h"
@@ -602,6 +601,17 @@ SourceFile::~SourceFile()
 {
 }
 
+SHA1::Digest SourceFile::getDigest()
+{
+    if (m_digest == SHA1::Digest())
+    {
+        DigestBuilder<SHA1> builder;
+        builder.append(getContent());
+        m_digest = builder.finalize();
+    }
+    return m_digest;
+}
+
 String SourceFile::calcVerbosePath() const
 {
     ISlangFileSystemExt* fileSystemExt = getSourceManager()->getFileSystemExt();