Gdext 0.3.2 had internal breaking change (#78)

There was an internal change in `godot-ffi` that broke the VARIANT_TYPE
of Godot types.

Author: TitanNano

Cargo.lock

@@ -10,7 +10,7 @@ version = "0.1.0"
 edition = "2021"
 
 [workspace.dependencies]
-godot = { version = "0.3", features = ["experimental-threads"] }
+godot = { version = "0.3.2", features = ["experimental-threads"] }
 godot-cell = "0.3"
 godot-bindings = "0.3"
 itertools = "0.10"

Cargo.toml

@@ -184,7 +184,7 @@ fn rust_to_variant_type(ty: &syn::Type) -> Result<TokenStream, TokenStream> {
                 use #godot_types::sys::GodotFfi;
                 use #godot_types::meta::GodotType;
 
-                <<#path as #godot_types::meta::GodotConvert>::Via as GodotType>::Ffi::VARIANT_TYPE
+                <<#path as #godot_types::meta::GodotConvert>::Via as GodotType>::Ffi::VARIANT_TYPE.variant_as_nil()
             }
         }),
         T::Verbatim(_) => Err(syn::Error::new(
@@ -206,7 +206,7 @@ fn rust_to_variant_type(ty: &syn::Type) -> Result<TokenStream, TokenStream> {
                     use #godot_types::sys::GodotFfi;
                     use #godot_types::meta::GodotType;
 
-                    <<#tuple as #godot_types::meta::GodotConvert>::Via as GodotType>::Ffi::VARIANT_TYPE
+                    <<#tuple as #godot_types::meta::GodotConvert>::Via as GodotType>::Ffi::VARIANT_TYPE.variant_as_nil()
                 }
             })
         }

derive/src/lib.rs

@@ -95,7 +95,9 @@ where
 
 impl<T: ArrayElement + GodotScriptExport + GodotType> GodotScriptExport for Array<T> {
     fn hint_string(custom_hint: Option<PropertyHint>, custom_string: Option<String>) -> String {
-        let element_type = <<T as GodotType>::Ffi as GodotFfi>::VARIANT_TYPE.ord();
+        let element_type = <<T as GodotType>::Ffi as GodotFfi>::VARIANT_TYPE
+            .variant_as_nil()
+            .ord();
         let element_hint = <T as GodotScriptExport>::hint(custom_hint).ord();
         let element_hint_string = <T as GodotScriptExport>::hint_string(custom_hint, custom_string);
 

rust-script/src/interface/export.rs

@@ -123,7 +123,7 @@ macro_rules! signal_argument_desc {
     ($name:literal, $type:ty) => {
         RustScriptPropDesc {
             name: $name,
-            ty: <<<$type as GodotConvert>::Via as GodotType>::Ffi as godot::sys::GodotFfi>::VARIANT_TYPE,
+            ty: <<<$type as GodotConvert>::Via as GodotType>::Ffi as godot::sys::GodotFfi>::VARIANT_TYPE.variant_as_nil(),
             class_name: <<$type as GodotConvert>::Via as GodotType>::class_name(),
             exported: false,
             hint: PropertyHint::NONE,