From cb9d679a3a93c65c44904bf77811b9d74e431e23 Mon Sep 17 00:00:00 2001
From: jsmall-nvidia <jsmall@nvidia.com>
Date: Fri, 26 Oct 2018 08:16:54 -0400
Subject: Feature/file system cache (#692)

* First pass at caching file system.

* default-file-system -> slang-file-system
fix problem with location("build.linux") confusing windows build for now.

* Added CompressedResult
Fix problem in Result construction with it being unsigned

* Add support for Path simplification.

* Testing for Path::Simplify.

* Refactored CacheFileSystem - automatically handles ISlangFileSystem or ISlangFileSystemExt appropriately.
Removed WrapFileSystem - because wasn't possible to emulate some of the behavior if just loadFile is implemented.
Split out StringBlob - so that no need to convert between ISlangBlob and String repeatidly.

* Remove unwanted code in ~CompileRequest
---
 source/slang/default-file-system.h | 104 -------------------------------------
 1 file changed, 104 deletions(-)
 delete mode 100644 source/slang/default-file-system.h

(limited to 'source/slang/default-file-system.h')

diff --git a/source/slang/default-file-system.h b/source/slang/default-file-system.h
deleted file mode 100644
index 7805dd81a..000000000
--- a/source/slang/default-file-system.h
+++ /dev/null
@@ -1,104 +0,0 @@
-#ifndef SLANG_DEFAULT_FILE_SYSTEM_H_INCLUDED
-#define SLANG_DEFAULT_FILE_SYSTEM_H_INCLUDED
-
-#include "../../slang.h"
-#include "../../slang-com-helper.h"
-#include "../../slang-com-ptr.h"
-
-namespace Slang
-{
-
-class DefaultFileSystem : public ISlangFileSystemExt
-{
-public:
-    // ISlangUnknown 
-    // override ref counting, as DefaultFileSystem is singleton
-    SLANG_IUNKNOWN_QUERY_INTERFACE 
-    SLANG_NO_THROW uint32_t SLANG_MCALL addRef() SLANG_OVERRIDE { return 1; }
-    SLANG_NO_THROW uint32_t SLANG_MCALL release() SLANG_OVERRIDE { return 1; } 
-
-    // ISlangFileSystem
-    virtual SLANG_NO_THROW SlangResult SLANG_MCALL loadFile(
-        char const*     path,
-        ISlangBlob**    outBlob) SLANG_OVERRIDE;
-
-    // ISlangFileSystemExt
-    virtual SLANG_NO_THROW SlangResult SLANG_MCALL getCanoncialPath(
-            const char* path,
-            ISlangBlob** canonicalPathOut) SLANG_OVERRIDE;
-
-    virtual SLANG_NO_THROW SlangResult SLANG_MCALL calcRelativePath(
-        SlangPathType fromPathType,
-        const char* fromPath,
-        const char* path,
-        ISlangBlob** pathOut) SLANG_OVERRIDE;
-
-    virtual SLANG_NO_THROW SlangResult SLANG_MCALL getPathType(
-        const char* path,
-        SlangPathType* pathTypeOut) SLANG_OVERRIDE;
-
-        /// Get a default instance
-    static ISlangFileSystemExt* getSingleton() { return &s_singleton; }
-
-private:
-        /// Make so not constructible
-    DefaultFileSystem() {}
-    virtual ~DefaultFileSystem() {}
-
-    ISlangUnknown* getInterface(const Guid& guid);
-
-    static DefaultFileSystem s_singleton;
-};
-
-/* Wraps an ISlangFileSystem, and provides the extra methods required to make a ISlangFileSystemExt 
-interface, deferring to the contained file system to do reading. 
-
-NOTE! That this behavior is the same as previously in that.... 
-1) calcRelativePath, just returns the path as processed by the Path:: methods 
-2) getCanonicalPath, just returns the input path as the 'canonical' path. This will be wrong with a file multiply referenced through paths with .. and or . but 
-doing it this way means it works as before and requires no new functions.
-*/
-class WrapFileSystem : public ISlangFileSystemExt
-{
-public:
-    // ISlangUnknown 
-    SLANG_IUNKNOWN_ALL
-    
-    // ISlangFileSystem
-    virtual SLANG_NO_THROW SlangResult SLANG_MCALL loadFile(
-        char const*     path,
-        ISlangBlob**    outBlob) SLANG_OVERRIDE;
-
-    // ISlangFileSystemExt
-    virtual SLANG_NO_THROW SlangResult SLANG_MCALL getCanoncialPath(
-        const char* path,
-        ISlangBlob** canonicalPathOut) SLANG_OVERRIDE;
-
-    virtual SLANG_NO_THROW SlangResult SLANG_MCALL calcRelativePath(
-        SlangPathType fromPathType,
-        const char* fromPath,
-        const char* path,
-        ISlangBlob** pathOut) SLANG_OVERRIDE;
-
-    virtual SLANG_NO_THROW SlangResult SLANG_MCALL getPathType(
-        const char* path,
-        SlangPathType* pathTypeOut) SLANG_OVERRIDE;
-
-        /// Ctor
-    WrapFileSystem(ISlangFileSystem* fileSystem):
-        m_fileSystem(fileSystem)
-    {
-    }
-    virtual ~WrapFileSystem() {}
-
-
-protected:
-    ISlangUnknown* getInterface(const Guid& guid);
-
-    ComPtr<ISlangFileSystem> m_fileSystem;                  ///< The wrapped file system
-    uint32_t m_refCount = 0;
-};
-
-}
-
-#endif
\ No newline at end of file
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