From 332f60c19336252d907b83882aa70665ca93a9d2 Mon Sep 17 00:00:00 2001
From: Ellie Hermaszewska <ellieh@nvidia.com>
Date: Fri, 12 May 2023 04:33:21 +0800
Subject: 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>
---
 .../higher-order-functions/overloaded.slang            | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 tests/language-feature/higher-order-functions/overloaded.slang

(limited to 'tests/language-feature/higher-order-functions/overloaded.slang')

diff --git a/tests/language-feature/higher-order-functions/overloaded.slang b/tests/language-feature/higher-order-functions/overloaded.slang
new file mode 100644
index 000000000..ebbc6ed19
--- /dev/null
+++ b/tests/language-feature/higher-order-functions/overloaded.slang
@@ -0,0 +1,18 @@
+//TEST:SIMPLE:
+
+func foo(f : functype (float) -> int) -> int{
+    return f(0);
+}
+
+int bit<T>(T) {
+    return 1;
+}
+
+int bit<T, let N : int>(vector<T, N>) {
+    return 1;
+}
+
+int zit() {
+    // In an ideal world in this case we could infer that we want bit<T>
+    return foo(bit<float>);
+}
-- 
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