Support generic interfaces. (#3278)

* Initial support for generic interfaces.

* Cleanup.

* Add generic syntax for interfaces.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 32 insertions, 23 deletions

diff --git a/source/slang/slang-ast-base.cpp b/source/slang/slang-ast-base.cpp
index 60be7a563..d4904d2de 100644
--- a/source/slang/slang-ast-base.cpp
+++ b/source/slang/slang-ast-base.cpp
@@ -3,34 +3,43 @@
 
 namespace Slang
 {
-void NodeBase::_initDebug(ASTNodeType inAstNodeType, ASTBuilder* inAstBuilder)
-{
+    void NodeBase::_initDebug(ASTNodeType inAstNodeType, ASTBuilder* inAstBuilder)
+    {
 #ifdef _DEBUG
-    SLANG_UNUSED(inAstNodeType);
-    static int32_t uidCounter = 0;
-    static int32_t breakValue = 0;
-    uidCounter++;
-    _debugUID = uidCounter;
-    if (inAstBuilder->getId() == -1)
-        _debugUID = -_debugUID;
-    if (breakValue != 0 && _debugUID == breakValue)
-        SLANG_BREAKPOINT(0)
+        SLANG_UNUSED(inAstNodeType);
+        static int32_t uidCounter = 0;
+        static int32_t breakValue = 0;
+        uidCounter++;
+        _debugUID = uidCounter;
+        if (inAstBuilder->getId() == -1)
+            _debugUID = -_debugUID;
+        if (breakValue != 0 && _debugUID == breakValue)
+            SLANG_BREAKPOINT(0)
 #else
-    SLANG_UNUSED(inAstNodeType);
-    SLANG_UNUSED(inAstBuilder);
+        SLANG_UNUSED(inAstNodeType);
+        SLANG_UNUSED(inAstBuilder);
 #endif
-}
-DeclRefBase* Decl::getDefaultDeclRef()
-{
-    if (auto astBuilder = getCurrentASTBuilder())
+    }
+    DeclRefBase* Decl::getDefaultDeclRef()
     {
-        const Index currentEpoch = astBuilder->getEpoch();
-        if (currentEpoch != m_defaultDeclRefEpoch || !m_defaultDeclRef)
+        if (auto astBuilder = getCurrentASTBuilder())
         {
-            m_defaultDeclRef = astBuilder->getOrCreate<DirectDeclRef>(this);
-            m_defaultDeclRefEpoch = currentEpoch;
+            const Index currentEpoch = astBuilder->getEpoch();
+            if (currentEpoch != m_defaultDeclRefEpoch || !m_defaultDeclRef)
+            {
+                m_defaultDeclRef = astBuilder->getOrCreate<DirectDeclRef>(this);
+                m_defaultDeclRefEpoch = currentEpoch;
+            }
         }
+        return m_defaultDeclRef;
     }
-    return m_defaultDeclRef;
-}
+
+    bool Decl::isChildOf(Decl* other) const
+    {
+        for (auto parent = parentDecl; parent; parent = parent->parentDecl)
+            if (parent == other)
+                return true;
+        return false;
+    }
+
 }