Reading artifact hierarchy from file system interface (#2787)

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

* WIP simplifying artifact interface.

* Use ContainedKind.

* Remove LazyCastableList.
Use ContainedKind for find.

* Remove ICastableList.

* Remove need for ICastableList.

* Remove IArtifactContainer.

* Small fixes.

* Small improvements around Artifact.

* Make explicit find is for *representations* that can cast.
Fix bug in handling casting in lookup.

* Made associated items artifacts too.

* Small fixes.

* Small improvements around writing a container.

* WIP artifact container format.

* Make the root a special case.

* Special case if the artifact doesn't have children/associated.

* First pass handling of interpretting a file system into artifact hierarchy.

* Explain the final structure. Make the file system available.

* Remove addArtifact from IArtifact interface - means will be compatible with previous version.

* Rename function to get compile result as a filesytem.

3 files changed, 23 insertions, 2 deletions

diff --git a/source/slang/slang-compiler.cpp b/source/slang/slang-compiler.cpp
index 1a4a12dfe..43a6d238e 100644
--- a/source/slang/slang-compiler.cpp
+++ b/source/slang/slang-compiler.cpp
@@ -1853,7 +1853,6 @@ namespace Slang
         {
         case ContainerFormat::SlangModule:
         {
-
             OwnedMemoryStream stream(FileAccess::Write);
             SlangResult res = writeContainerToStream(&stream);
             if (SLANG_FAILED(res))
@@ -1869,7 +1868,6 @@ namespace Slang
             auto containerBlob = ListBlob::moveCreate(blobData);
 
             m_containerArtifact = Artifact::create(ArtifactDesc::make(Artifact::Kind::CompileBinary, ArtifactPayload::SlangIR, ArtifactStyle::Unknown));
-
             m_containerArtifact->addRepresentationUnknown(containerBlob);
 
             return res;
diff --git a/source/slang/slang-compiler.h b/source/slang/slang-compiler.h
index 52d154e5c..0c366f485 100755
--- a/source/slang/slang-compiler.h
+++ b/source/slang/slang-compiler.h
@@ -2594,6 +2594,7 @@ namespace Slang
         virtual SLANG_NO_THROW SlangResult SLANG_MCALL getTargetCodeBlob(int targetIndex, ISlangBlob** outBlob) SLANG_OVERRIDE;
         virtual SLANG_NO_THROW SlangResult SLANG_MCALL getTargetHostCallable(int targetIndex, ISlangSharedLibrary** outSharedLibrary) SLANG_OVERRIDE;
         virtual SLANG_NO_THROW void const* SLANG_MCALL getCompileRequestCode(size_t* outSize) SLANG_OVERRIDE;
+        virtual SLANG_NO_THROW ISlangMutableFileSystem* SLANG_MCALL getCompileRequestResultAsFileSystem() SLANG_OVERRIDE;
         virtual SLANG_NO_THROW SlangResult SLANG_MCALL getContainerCode(ISlangBlob** outBlob) SLANG_OVERRIDE;
         virtual SLANG_NO_THROW SlangResult SLANG_MCALL loadRepro(ISlangFileSystem* fileSystem, const void* data, size_t size) SLANG_OVERRIDE;
         virtual SLANG_NO_THROW SlangResult SLANG_MCALL saveRepro(ISlangBlob** outBlob) SLANG_OVERRIDE;
@@ -2632,6 +2633,8 @@ namespace Slang
             /// Where the container is stored. This is calculated as part of compile if m_containerFormat is set to
             /// a supported format. 
         ComPtr<IArtifact> m_containerArtifact;
+            /// Holds the container as a file system
+        ComPtr<ISlangMutableFileSystem> m_containerFileSystem;
 
             // Path to output container to
         String m_containerOutputPath;
diff --git a/source/slang/slang.cpp b/source/slang/slang.cpp
index 597e27bb9..4904abe03 100644
--- a/source/slang/slang.cpp
+++ b/source/slang/slang.cpp
@@ -13,6 +13,9 @@
 #include "../compiler-core/slang-artifact-desc-util.h"
 #include "../compiler-core/slang-artifact-util.h"
 #include "../compiler-core/slang-artifact-associated-impl.h"
+#include "../compiler-core/slang-artifact-container-util.h"
+
+#include "../core/slang-memory-file-system.h"
 
 #include "slang-module-library.h"
 
@@ -5234,6 +5237,23 @@ char const* EndToEndCompileRequest::getEntryPointSource(int entryPointIndex)
     return (char const*)getEntryPointCode(entryPointIndex, nullptr);
 }
 
+ISlangMutableFileSystem* EndToEndCompileRequest::getCompileRequestResultAsFileSystem()
+{
+    if (!m_containerFileSystem)
+    {
+        if (m_containerArtifact)
+        {
+            ComPtr<ISlangMutableFileSystem> fileSystem(new MemoryFileSystem);
+            if (SLANG_SUCCEEDED(ArtifactContainerUtil::writeContainer(m_containerArtifact, "", fileSystem)))
+            {
+                m_containerFileSystem.swap(fileSystem);
+            }
+        }
+    }
+
+    return m_containerFileSystem;
+}
+
 void const* EndToEndCompileRequest::getCompileRequestCode(size_t* outSize)
 {
     if (m_containerArtifact)