Support `[DllImport]` (#2181)

* Support `[DllImport]`

* Fix.

* Fix.

* Fix array type emit in cpp.

* Fix.

* Fix.

* Fix

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

1 files changed, 8 insertions, 1 deletions

diff --git a/source/slang/slang-parser.cpp b/source/slang/slang-parser.cpp
index c08f5cf34..40bb91d77 100644
--- a/source/slang/slang-parser.cpp
+++ b/source/slang/slang-parser.cpp
@@ -3551,8 +3551,9 @@ namespace Slang
         {
             // User is specifying the class that should be construted
             auto classNameAndLoc = expectIdentifier(parser);
-
             syntaxClass = parser->astBuilder->findSyntaxClass(classNameAndLoc.name);
+
+            assert(syntaxClass.classInfo);
         }
         else
         {
@@ -4822,6 +4823,11 @@ namespace Slang
         return parseBoolLitExpr(parser, false);
     }
 
+    static NodeBase* parseNullPtrExpr(Parser* parser, void* /*userData*/)
+    {
+        return parser->astBuilder->create<NullPtrLiteralExpr>();
+    }
+
     static bool _isFinite(double value)
     {
         // Lets type pun double to uint64_t, so we can detect special double values
@@ -6296,6 +6302,7 @@ namespace Slang
         _makeParseExpr("This",  parseThisTypeExpr),
         _makeParseExpr("true",  parseTrueExpr),
         _makeParseExpr("false", parseFalseExpr),
+        _makeParseExpr("nullptr", parseNullPtrExpr),
         _makeParseExpr("__TaggedUnion", parseTaggedUnionType),
     };