Artifact split interface and implementation (#2349)

* #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.

1 files changed, 94 insertions, 0 deletions

diff --git a/source/compiler-core/slang-artifact-representation-impl.h b/source/compiler-core/slang-artifact-representation-impl.h
new file mode 100644
index 000000000..9c2066e55
--- /dev/null
+++ b/source/compiler-core/slang-artifact-representation-impl.h
@@ -0,0 +1,94 @@
+// slang-artifact-representation-impl.h
+#ifndef SLANG_ARTIFACT_REPRESENTATION_IMPL_H
+#define SLANG_ARTIFACT_REPRESENTATION_IMPL_H
+
+#include "slang-artifact-representation.h"
+
+#include "../../slang-com-helper.h"
+#include "../../slang-com-ptr.h"
+
+#include "../core/slang-com-object.h"
+
+namespace Slang
+{
+
+/* An implementation of ILockFile */
+class LockFile : public ComBaseObject, public ILockFile
+{
+public:
+    SLANG_COM_BASE_IUNKNOWN_ALL
+
+        // ICastable
+        SLANG_NO_THROW void* SLANG_MCALL castAs(const Guid& guid) SLANG_OVERRIDE;
+
+    // ILockFile
+    SLANG_NO_THROW const char* SLANG_MCALL getPath() SLANG_OVERRIDE;
+    SLANG_NO_THROW ISlangMutableFileSystem* SLANG_MCALL getFileSystem() SLANG_OVERRIDE;
+    SLANG_NO_THROW void SLANG_MCALL disown() SLANG_OVERRIDE;
+
+    /// Ctor
+    LockFile(String path, ISlangMutableFileSystem* fileSystem) :
+        m_path(path),
+        m_fileSystem(fileSystem)
+    {
+    }
+
+    ~LockFile();
+
+protected:
+    void* getInterface(const Guid& uuid);
+    void* getObject(const Guid& uuid);
+
+    ISlangMutableFileSystem* _getFileSystem();
+
+    String m_path;
+    ComPtr<ISlangMutableFileSystem> m_fileSystem;
+};
+
+/*
+A representation of an artifact that is held in a file */
+class FileArtifactRepresentation : public ComBaseObject, public IFileArtifactRepresentation
+{
+public:
+    typedef IFileArtifactRepresentation::Kind Kind;
+
+    SLANG_COM_BASE_IUNKNOWN_ALL
+
+    // ICastable
+    SLANG_NO_THROW void* SLANG_MCALL castAs(const Guid& guid) SLANG_OVERRIDE;
+
+    // IArtifactRepresentation
+    SLANG_NO_THROW SlangResult SLANG_MCALL writeToBlob(ISlangBlob** blob) SLANG_OVERRIDE;
+    SLANG_NO_THROW bool SLANG_MCALL exists() SLANG_OVERRIDE;
+
+    // IFileArtifactRepresentation
+    virtual SLANG_NO_THROW Kind SLANG_MCALL getKind() SLANG_OVERRIDE { return m_kind; }
+    virtual SLANG_NO_THROW const char* SLANG_MCALL getPath() SLANG_OVERRIDE { return m_path.getBuffer(); }
+    virtual SLANG_NO_THROW ILockFile* SLANG_MCALL getLockFile() SLANG_OVERRIDE { return m_lockFile; }
+    virtual SLANG_NO_THROW ISlangMutableFileSystem* SLANG_MCALL getFileSystem() SLANG_OVERRIDE { return m_fileSystem; }
+
+    FileArtifactRepresentation(Kind kind, String path, ILockFile* lockFile, ISlangMutableFileSystem* fileSystem):
+        m_kind(kind),
+        m_path(path),
+        m_lockFile(lockFile),
+        m_fileSystem(fileSystem)
+    {
+    }
+
+    ~FileArtifactRepresentation();
+
+protected:
+    void* getInterface(const Guid& uuid);
+    void* getObject(const Guid& uuid);
+
+    ISlangMutableFileSystem* _getFileSystem();
+
+    Kind m_kind;
+    String m_path;
+    ComPtr<ILockFile> m_lockFile;
+    ComPtr<ISlangMutableFileSystem> m_fileSystem;
+};
+
+} // namespace Slang
+
+#endif