From dadea111907417925c4b00a12ad0197c7045f93c Mon Sep 17 00:00:00 2001
From: Jonah Williams <jonahwilliams@google.com>
Date: Mon, 14 Nov 2022 13:25:03 -0800
Subject: [PATCH] [Impeller] error earlier on uint types (flutter/engine#37593)

---
 engine/src/flutter/impeller/compiler/spirv_sksl.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/engine/src/flutter/impeller/compiler/spirv_sksl.cc b/engine/src/flutter/impeller/compiler/spirv_sksl.cc
index 2535d4ec6e6..643f90e8d1d 100644
--- a/engine/src/flutter/impeller/compiler/spirv_sksl.cc
+++ b/engine/src/flutter/impeller/compiler/spirv_sksl.cc
@@ -118,6 +118,11 @@ void CompilerSkSL::emit_header() {
 
 void CompilerSkSL::emit_uniform(const SPIRVariable& var) {
   auto& type = get<SPIRType>(var.basetype);
+  if (type.basetype == SPIRType::UInt && is_legacy()) {
+    FLUTTER_CROSS_THROW("SkSL does not support unsigned integers: '" +
+                        get_name(var.self) + "'");
+  }
+
   add_resource_name(var.self);
   statement(variable_decl(var), ";");