Artifact closer to being able to replace CompileResult (#2354)

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

* WIP with hierarchical enums.

* Some small fixes and improvements around artifact desc related types.

* Improvements around hierarchical enum.

* Fixes to get Artifact types refactor to be able to execute tests.

* Attempt to better categorize PTX.

* Work around for potentially unused function warning.

* Typo fix.

* Simplify Artifact header.

* Small improvements around Artifact kind/payload/style.

* Added IDestroyable/ICastable

* Add IArtifactList.

* First impl of IArtifactUtil.

* Use the ICastable interface for IArtifactRepresentation.

* Added IArtifactRepresentation & IArtifactAssociated.

* Add SLANG_OVERRIDE to avoid gcc/clang warning.

* Fix calling convention issue on win32.

* Fix missing SLANG_OVERRIDE.

* First attempt at file abstraction around Artifact.

* Added creation of lock file.

* Move functionality for determining file paths to the IArtifactUtil.
Add casting to ICastable.

* Added some casting/finding mechanisms.

* Simplify IArtifact interface, and use Items for file reps.

* Fix problem with libraries on DXIL.

* Split out ArtifactRepresentation.

* Move ArtifactDesc functionality to ArtifactDescUtil. ArtifactInfoUtil becomes ArtifactDescUtil.

* Split implementations from the interfaces for Artifact.

* Use TypeTextUtil for target name outputting.

* Add artifact impls.

* Add ICastableList

* Added UnknownCastableAdapter

* Make ISlangSharedLibrary derive from ICastable, and remain backwards compatible with slang-llvm.

* Refactor Representation on Artifact.

* Make our ISlangBlobs also derive from ICastable.
Make ISlangBlob atomic ref counted.

* Split out CastableList and related types, and placed in core.

* Small fixes around IArtifact.
Improve IArtifact docs.
First impl of getChildren for IArtifact.

* Documentation improvements for Artifact related types.

* Fix typo.

* Special case adding a ICastableList to a LazyCastableList.

* Small simplification of LazyCastableList, by adding State member.

* Removed the ILockFile interface because IFileArtifactRepresentation can be used.

* Implement DiagnosticsArtifactRepresentation.

* Added PostEmitMetadataArtifactRepresentation

* Add searching by predicate.
Added handling of accessing Artifact as ISharedLibrary

* Fix typo.

* Add find to IArtifacgtList.
Fix some missing SLANG_NO_THROW.

* Small improvements around ArtifactDesc types.

* Another small change around ArtifactKind.

* Some more shuffling of ArtifactDesc.

* Make IArtifact castable
Remove IArtifactList
Made IArtifactContainer derive from IArtifact
Made ModuleLibrary atomic ref counted/given IModuleLibrary interface.

* Must call _requireChildren before any children access.

* Fix missing SLANG_MCALL on castAs.

* Fix missing SLANG_OVERRIDE.

* Added IArtifactHandler

* Use ICastable for basis of scope/lookup.

1 files changed, 90 insertions, 0 deletions

diff --git a/source/compiler-core/slang-artifact-representation-impl.cpp b/source/compiler-core/slang-artifact-representation-impl.cpp
index d1de75c79..6ae2d646f 100644
--- a/source/compiler-core/slang-artifact-representation-impl.cpp
+++ b/source/compiler-core/slang-artifact-representation-impl.cpp
@@ -94,4 +94,94 @@ FileArtifactRepresentation::~FileArtifactRepresentation()
     }
 }
 
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! DiagnosticsArtifactRepresentation !!!!!!!!!!!!!!!!!!!!!!!!!!! */
+
+void* DiagnosticsArtifactRepresentation::getInterface(const Guid& guid)
+{
+    if (guid == ISlangUnknown::getTypeGuid() ||
+        guid == ICastable::getTypeGuid() ||
+        guid == IArtifactRepresentation::getTypeGuid() ||
+        guid == IDiagnosticsArtifactRepresentation::getTypeGuid())
+    {
+        return static_cast<DiagnosticsArtifactRepresentation*>(this);
+    }
+    return nullptr;
+}
+
+void* DiagnosticsArtifactRepresentation::getObject(const Guid& guid)
+{
+    SLANG_UNUSED(guid);
+    return nullptr;
+}
+
+void* DiagnosticsArtifactRepresentation::castAs(const Guid& guid)
+{
+    if (auto intf = getInterface(guid))
+    {
+        return intf;
+    }
+    return getObject(guid);
+}
+
+SlangResult DiagnosticsArtifactRepresentation::writeToBlob(ISlangBlob** outBlob)
+{
+    *outBlob = nullptr;
+    return SLANG_E_NOT_IMPLEMENTED;
+}
+
+bool DiagnosticsArtifactRepresentation::exists()
+{
+    return true;
+}
+
+ZeroTerminatedCharSlice DiagnosticsArtifactRepresentation::_allocateSlice(const Slice<char>& in)
+{
+    if (in.count == 0)
+    {
+        return ZeroTerminatedCharSlice("", 0);
+    }
+    const char* dst = m_arena.allocateString(in.data, in.count);
+    return ZeroTerminatedCharSlice(dst, in.count);
+}
+
+void DiagnosticsArtifactRepresentation::add(const Diagnostic& inDiagnostic)
+{
+    Diagnostic diagnostic(inDiagnostic);
+
+    diagnostic.text = _allocateSlice(inDiagnostic.text);
+    diagnostic.code = _allocateSlice(inDiagnostic.code);
+    diagnostic.filePath = _allocateSlice(inDiagnostic.filePath);
+
+    m_diagnostics.add(diagnostic);
+}
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PostEmitMetadataArtifactRepresentation !!!!!!!!!!!!!!!!!!!!!!!!!!! */
+
+void* PostEmitMetadataArtifactRepresentation::getInterface(const Guid& guid)
+{
+    if (guid == ISlangUnknown::getTypeGuid() ||
+        guid == ICastable::getTypeGuid() ||
+        guid == IArtifactRepresentation::getTypeGuid() ||
+        guid == IPostEmitMetadataArtifactRepresentation::getTypeGuid())
+    {
+        return static_cast<IPostEmitMetadataArtifactRepresentation*>(this);
+    }
+    return nullptr;
+}
+
+void* PostEmitMetadataArtifactRepresentation::getObject(const Guid& uuid)
+{
+    if (uuid == getTypeGuid())
+    {
+        return this;
+    }
+    return nullptr;
+}
+
+Slice<ShaderBindingRange> PostEmitMetadataArtifactRepresentation::getBindingRanges() 
+{ 
+    return Slice<ShaderBindingRange>(m_usedBindings.getBuffer(), m_usedBindings.getCount()); 
+}
+
+ 
 } // namespace Slang