Add API for querying and reusing precompiled binary modules. (#3614)

2 files changed, 16 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();
diff --git a/source/compiler-core/slang-source-loc.h b/source/compiler-core/slang-source-loc.h
index f432b2432..a5919d809 100644
--- a/source/compiler-core/slang-source-loc.h
+++ b/source/compiler-core/slang-source-loc.h
@@ -6,6 +6,7 @@
 #include "../core/slang-memory-arena.h"
 #include "../core/slang-string-slice-pool.h"
 #include "../core/slang-castable.h"
+#include "../core/slang-crypto.h"
 
 #include "slang-source-map.h"
 
@@ -277,6 +278,8 @@ public:
         /// Dtor
     ~SourceFile();
 
+    SHA1::Digest getDigest();
+
     protected:
 
     SourceManager* m_sourceManager;                             ///< The source manager this belongs to
@@ -286,6 +289,8 @@ public:
     UnownedStringSlice m_content;                               ///< The actual contents of the file.
     size_t m_contentSize;                                       ///< The size of the actual contents
 
+    SHA1::Digest m_digest;
+
     // In order to speed up lookup of line number information,
     // we will cache the starting offset of each line break in
     // the input file: