From 181fd1f3c9c4b047c1947096e7b3f8e5bc2314c3 Mon Sep 17 00:00:00 2001
From: jsmall-nvidia <jsmall@nvidia.com>
Date: Tue, 18 Apr 2023 12:36:06 -0400
Subject: On demand SourceMap JSON serialization (#2811)

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

* Moved JSON source map writing logic to JSONSourceMapUtil.

* Use ArtifactHandler to read/write SourceMaps.
Use ObjectCastableAdapter to hold SourceMap
Only serialize SourceMap <-> JSON on demand.
---
 source/core/slang-castable.cpp | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'source/core/slang-castable.cpp')

diff --git a/source/core/slang-castable.cpp b/source/core/slang-castable.cpp
index f3c6541dd..6b7644bf2 100644
--- a/source/core/slang-castable.cpp
+++ b/source/core/slang-castable.cpp
@@ -20,6 +20,37 @@ namespace Slang {
     return castable;
 }
 
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ObjectCastableAdapter !!!!!!!!!!!!!!!!!!!!!!!!!!! */
+
+void* ObjectCastableAdapter::castAs(const Guid& guid)
+{
+    if (auto intf = getInterface(guid))
+    {
+        return intf;
+    }
+    return getObject(guid);
+}
+
+void* ObjectCastableAdapter::getInterface(const Guid& guid)
+{
+    if (guid == ISlangUnknown::getTypeGuid() ||
+        guid == ICastable::getTypeGuid() ||
+        guid == IObjectCastableAdapter::getTypeGuid())
+    {
+        return static_cast<IObjectCastableAdapter*>(this);
+    }
+    return nullptr;
+}
+
+void* ObjectCastableAdapter::getObject(const Guid& guid)
+{
+    if (guid == m_containedGuid)
+    {
+        return m_contained;
+    }
+    return nullptr;
+}
+
 /* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! UnknownCastableAdapter !!!!!!!!!!!!!!!!!!!!!!!!!!! */
 
 void* UnknownCastableAdapter::castAs(const Guid& guid)
-- 
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