From e5b796db188416dfc414dab27b92c86b0b53de2b Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Thu, 10 Sep 2020 15:10:11 -0700
Subject: Allow existential types in `StructuredBuffer` element type. (#1536)

* Allow existential types in `StructuredBuffer` element type.

* Handle StructuredBuffer.Load/.Consume methods

* Clean up unnecessary changes

* Code cleanup

* Update test comment
---
 source/slang/slang-emit-c-like.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'source/slang/slang-emit-c-like.cpp')

diff --git a/source/slang/slang-emit-c-like.cpp b/source/slang/slang-emit-c-like.cpp
index 090d06f28..8ef18242a 100644
--- a/source/slang/slang-emit-c-like.cpp
+++ b/source/slang/slang-emit-c-like.cpp
@@ -222,7 +222,7 @@ void CLikeSourceEmitter::emitSimpleType(IRType* type)
 List<IRWitnessTableEntry*> CLikeSourceEmitter::getSortedWitnessTableEntries(IRWitnessTable* witnessTable)
 {
     List<IRWitnessTableEntry*> sortedWitnessTableEntries;
-    auto interfaceType = cast<IRInterfaceType>(witnessTable->getOperand(0));
+    auto interfaceType = cast<IRInterfaceType>(witnessTable->getConformanceType());
     auto witnessTableItems = witnessTable->getChildren();
     // Build a dictionary of witness table entries for fast lookup.
     Dictionary<IRInst*, IRWitnessTableEntry*> witnessTableEntryDictionary;
-- 
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