OffsetContainer serialization (#1093)

* OffsetContainer with unit tests.

* State serialization working with OffsetContainer.

* Fixes to make work with OffsetContainer.

* Added OffsetContainer documentation.

* Remove RelativeContainer.

* Fix problem with + on Offset32Ptr on windows x86 target.

* * Made OffsetBase a base class of OffsetContainer.
* Added MemoryOffsetBase to just handle being a chunk of memory.

* * Use operator[] to access contents of OffsetContainer

* Fix the type hash to work across different size_t sizes.

* Fixed some Offset type related comments.

* Fix bug around using asBase, because it returns a reference just using 'auto' will means it becomes a value type.
Remove assignment and copy ctor from OffsetBase.

* Evaluation order of assignment can lead to wrong behavior with Offset32Ptr/raw pointers. Document the fact, and fix in StateSerializeUtil.

1 files changed, 8 insertions, 2 deletions

diff --git a/source/slang/slang.cpp b/source/slang/slang.cpp
index 8479d3202..3053b60c0 100644
--- a/source/slang/slang.cpp
+++ b/source/slang/slang.cpp
@@ -3465,9 +3465,12 @@ SLANG_API SlangResult spLoadRepro(
     List<uint8_t> buffer;
     SLANG_RETURN_ON_FAIL(StateSerializeUtil::loadState((const uint8_t*)data, size, buffer));
 
+    MemoryOffsetBase base;
+    base.set(buffer.getBuffer(), buffer.getCount());
+
     StateSerializeUtil::RequestState* requestState = StateSerializeUtil::getRequest(buffer);
 
-    SLANG_RETURN_ON_FAIL(StateSerializeUtil::load(requestState, fileSystem, request));
+    SLANG_RETURN_ON_FAIL(StateSerializeUtil::load(base, requestState, fileSystem, request));
     return SLANG_OK;
 }
 
@@ -3512,8 +3515,11 @@ SLANG_API SlangResult spExtractRepro(SlangSession* session, const void* reproDat
         SLANG_RETURN_ON_FAIL(StateSerializeUtil::loadState(&memoryStream, buffer));
     }
 
+    MemoryOffsetBase base;
+    base.set(buffer.getBuffer(), buffer.getCount());
+
     StateSerializeUtil::RequestState* requestState = StateSerializeUtil::getRequest(buffer);
-    return StateSerializeUtil::extractFiles(requestState, fileSystem);
+    return StateSerializeUtil::extractFiles(base, requestState, fileSystem);
 }
 
 // Reflection API