MVP for higher order functions (#2849)

* MVP for higher order functions

* Add shader subgroup partitioned glsl intrinsics

* Implement parsing and checking for tuple types

Currently there is no way to do anything useful with them from the source language however

* neaten

* Correct precedence of function type parsing

* neaten

* higher order function tests

* function types of any arity

* Inference for higher order functions

* Add second test for unsynchronized params

* regenerate vs projects

* dx11 -> dx12 for saturated cooperations tests

* Disable saturated cooperation tests on vulkan

They fail on release builds in CI, not essential for the higher order function work however

* remove saturated-cooperation tests

* Remove unnecessary assert and clarify control flow in AddDeclRefOverloadCandidates

* Add Tuple type name mangling

* Use functype keyword to introduce function types

* Add more inference tests for hof

---------

Co-authored-by: Yong He <yonghe@outlook.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/source/slang/slang-lower-to-ir.cpp b/source/slang/slang-lower-to-ir.cpp
index ad338709d..b1726487d 100644
--- a/source/slang/slang-lower-to-ir.cpp
+++ b/source/slang/slang-lower-to-ir.cpp
@@ -4512,6 +4512,18 @@ struct ExprLoweringVisitorBase : ExprVisitor<Derived, LoweredValInfo>
         UNREACHABLE_RETURN(LoweredValInfo());
     }
 
+    LoweredValInfo visitFuncTypeExpr(FuncTypeExpr* /*expr*/)
+    {
+        SLANG_UNIMPLEMENTED_X("type expression during code generation");
+        UNREACHABLE_RETURN(LoweredValInfo());
+    }
+
+    LoweredValInfo visitTupleTypeExpr(TupleTypeExpr* /*expr*/)
+    {
+        SLANG_UNIMPLEMENTED_X("type expression during code generation");
+        UNREACHABLE_RETURN(LoweredValInfo());
+    }
+
     LoweredValInfo visitPointerTypeExpr(PointerTypeExpr* /*expr*/)
     {
         SLANG_UNIMPLEMENTED_X("'*' type expression during code generation");