From 1fefc7e66b1ed994dc924a70fec8ede391cfac4e Mon Sep 17 00:00:00 2001
From: Stephen Gutekanst <stephen@hexops.com>
Date: Fri, 15 Jul 2022 00:15:48 -0700
Subject: [PATCH] gpu: make Instance an enum with methods

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
---
 gpu/src/Instance.zig | 6 +++++-
 gpu/src/main.zig     | 4 ++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/gpu/src/Instance.zig b/gpu/src/Instance.zig
index 1bdfcf23..bf619b41 100644
--- a/gpu/src/Instance.zig
+++ b/gpu/src/Instance.zig
@@ -1 +1,5 @@
-ptr: *anyopaque,
+pub const Instance = enum(usize) {
+    _,
+
+    pub const none: Instance = @intToEnum(Instance, 0);
+};
diff --git a/gpu/src/main.zig b/gpu/src/main.zig
index a27f1125..8d0eb652 100644
--- a/gpu/src/main.zig
+++ b/gpu/src/main.zig
@@ -19,7 +19,7 @@ pub const ComputePassEncoder = @import("compute_pass_encoder.zig").ComputePassEn
 pub const ComputePipeline = @import("compute_pipeline.zig").ComputePipeline;
 pub const Device = @import("device.zig").Device;
 pub const ExternalTexture = @import("external_texture.zig").ExternalTexture;
-pub const Instance = @import("Instance.zig");
+pub const Instance = @import("instance.zig").Instance;
 pub const PipelineLayout = @import("PipelineLayout.zig");
 pub const QuerySet = @import("QuerySet.zig");
 pub const Queue = @import("Queue.zig");
@@ -47,7 +47,7 @@ test {
     refAllDecls(@import("compute_pipeline.zig"));
     refAllDecls(@import("device.zig"));
     refAllDecls(@import("external_texture.zig"));
-    refAllDecls(@import("Instance.zig"));
+    refAllDecls(@import("instance.zig"));
     refAllDecls(@import("PipelineLayout.zig"));
     refAllDecls(@import("QuerySet.zig"));
     refAllDecls(@import("Queue.zig"));