[PATCH 1/2] vkd3d-shader/hlsl: Allow empty parameter lists to be specified as "(void)".

[Zebediah Figura]

From: Zebediah Figura

---
 libs/vkd3d-shader/hlsl.y        | 20 ++++++++++++++------
 tests/hlsl-function.shader_test |  4 ++--
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y
index 3bad2acc..7caba3e0 100644
--- a/libs/vkd3d-shader/hlsl.y
+++ b/libs/vkd3d-shader/hlsl.y
@@ -3721,6 +3721,7 @@ static bool add_method_call(struct hlsl_ctx *ctx, struct list *instrs, struct hl
 %type <type> unnamed_struct_spec
 %type <type> struct_spec
 %type <type> type
+%type <type> type_no_void
 %type <type> typedef_type

%type <variable_def> type_spec
@@ -4233,6 +4234,10 @@ parameters:
         {
             memset(&$$, 0, sizeof($$));
         }
+    | scope_start KW_VOID
+        {
+            memset(&$$, 0, sizeof($$));
+        }
     | scope_start param_list
         {
             $$ = $2;
@@ -4260,7 +4265,7 @@ param_list:
         }

parameter:
-      var_modifiers type any_identifier colon_attribute
+      var_modifiers type_no_void any_identifier colon_attribute
         {
             struct hlsl_type *type;
             unsigned int modifiers = $1;
@@ -4321,7 +4326,7 @@ uav_type:
             $$ = HLSL_SAMPLER_DIM_3D;
         }

-type:
+type_no_void:
       KW_VECTOR '<' type ',' C_INTEGER '>'
         {
             if ($3->type != HLSL_CLASS_SCALAR)
@@ -4382,10 +4387,6 @@ type:
         {
             $$ = hlsl_get_matrix_type(ctx, HLSL_TYPE_FLOAT, 4, 4);
         }
-    | KW_VOID
-        {
-            $$ = ctx->builtin_types.Void;
-        }
     | KW_SAMPLER
         {
             $$ = ctx->builtin_types.sampler[HLSL_SAMPLER_DIM_GENERIC];
@@ -4467,6 +4468,13 @@ type:
             vkd3d_free($2);
         }

+type:
+      type_no_void
+    | KW_VOID
+        {
+            $$ = ctx->builtin_types.Void;
+        }
+
 declaration_statement:
       declaration
     | struct_declaration
diff --git a/tests/hlsl-function.shader_test b/tests/hlsl-function.shader_test
index 80412727..75521d4d 100644
--- a/tests/hlsl-function.shader_test
+++ b/tests/hlsl-function.shader_test
@@ -149,7 +149,7 @@ void func()
 {
 }

-[pixel shader todo]
+[pixel shader]

/* This is something of an internal test: we need to make sure that we use the
  * correct variables for a function's arguments and returns regardless of
@@ -176,7 +176,7 @@ float4 main() : sv_target
 }

[test]
-todo draw quad
+draw quad
 todo probe all rgba (0.1, 0.2, 0.3, 0.4)

[pixel shader]