Make artifact an interface (#2195)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Compile to a dxil library.

* Added CompileProduct.

* Support handling of ModuleLibrary.

* CacheBehavior -> Cache

* Use CompileProduct for -r references.

* CompileProduct -> Artifact.

* Determining an artifact type on binding.

* Determine binary linkability.

* Added Artifact::exists.

* Added ArtifactKeep.

* Small fixes.

* Small improvements to Artifact.

* Add zip extension.

* Fix some comments.

* Fix multiple adding of PublicDecoration.
Make public output export for DXIL/lib.
Add checking for simpleDecorations such that only added once.

* Use 'whole program' to identify library build.

* Move slang-artifact into compiler-core.

* Split out Keep free functions.

* Artifact::Keep -> ArtifactKeep.

* Handle libraries as artifacts.

* Add -target dxil so test infrastructure knows it needs DXC.

* Linking working in DXC.

* Improve handling around emit for 'export'.

* Add comment around Artifact name.

* Render test working with linking.

* Improvements around Artifact handling.

* Add ArtifactPayloadInfo.

* Small tidy up around artifact.

* Split out code to get info about Artifacts into artifact-info.cpp/.h

* IArtifact interface and IArtifactInstance interface.

* Fix small issues.

* Fix compilation warning issue.

* Fix missing SLANG_OVERRIDE.

* Small fixes to make compilation work on Visual Studio 2022.

* Small improvements to Artifact interface/naming.

* Added Desc with each element in IArchive to allow more flexibility in usage.

* Fix clang warning issue.

* Add ArtifactPayload::Diagnostics

* More discussion around IArtifact usage.

* Re-add slang-artifact.h which was removed during merge.

* Fix typo identified in review.

1 files changed, 9 insertions, 7 deletions

diff --git a/source/compiler-core/slang-dxc-compiler.cpp b/source/compiler-core/slang-dxc-compiler.cpp
index 0d05bf724..6375ba23a 100644
--- a/source/compiler-core/slang-dxc-compiler.cpp
+++ b/source/compiler-core/slang-dxc-compiler.cpp
@@ -19,6 +19,8 @@
 
 #include "../core/slang-shared-library.h"
 
+#include "../compiler-core/slang-artifact-info.h"
+
 // Enable calling through to  `dxc` to
 // generate code on Windows.
 #ifdef _WIN32
@@ -79,9 +81,9 @@ static UnownedStringSlice _addName(const UnownedStringSlice& inSlice, StringSlic
     }
 }
 
-static UnownedStringSlice _addName(Artifact* artifact, StringSlicePool& pool)
+static UnownedStringSlice _addName(IArtifact* artifact, StringSlicePool& pool)
 {
-    return _addName(artifact->getBaseName().getUnownedSlice(), pool);
+    return _addName(ArtifactInfoUtil::getBaseName(artifact).getUnownedSlice(), pool);
 }
 
 class DxcIncludeHandler : public IDxcIncludeHandler
@@ -288,8 +290,8 @@ SlangResult DXCDownstreamCompiler::compile(const CompileOptions& options, RefPtr
     }
 
     // Find all of the libraries
-    List<Artifact*> libraries;
-    for (Artifact* library : options.libraries)
+    List<IArtifact*> libraries;
+    for (IArtifact* library : options.libraries)
     {
         const auto desc = library->getDesc();
 
@@ -297,7 +299,7 @@ SlangResult DXCDownstreamCompiler::compile(const CompileOptions& options, RefPtr
         {
             // Make sure they all have blobs
             ComPtr<ISlangBlob> libraryBlob;
-            SLANG_RETURN_ON_FAIL(library->loadBlob(ArtifactKeep::Yes, libraryBlob));
+            SLANG_RETURN_ON_FAIL(library->loadBlob(ArtifactKeep::Yes, libraryBlob.writeRef()));
 
             libraries.add(library);
         }
@@ -462,10 +464,10 @@ SlangResult DXCDownstreamCompiler::compile(const CompileOptions& options, RefPtr
         List<ComPtr<ISlangBlob>> libraryBlobs;
         List<OSString> libraryNames;
 
-        for (Artifact* library : libraries)
+        for (IArtifact* library : libraries)
         {
             ComPtr<ISlangBlob> blob;
-            SLANG_RETURN_ON_FAIL(library->loadBlob(ArtifactKeep::Yes, blob));
+            SLANG_RETURN_ON_FAIL(library->loadBlob(ArtifactKeep::Yes, blob.writeRef()));
 
             libraryBlobs.add(blob);
             libraryNames.add(String(_addName(library, pool)).toWString());