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Allow method binds to take Object subclasses as arguments

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As done in upstream Godot via GH-57205.

Add a test that ensures it works also for "gdextended" objects.
This commit is contained in:
Fabio Alessandrelli
2023-01-10 11:48:21 +01:00
parent 129c358a72
commit 9fd33b5cde
4 changed files with 26 additions and 3 deletions
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21
include/godot_cpp/core/binder_common.hpp
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@@ -86,21 +86,36 @@ namespace godot {
template <class T>
struct VariantCaster {
static _FORCE_INLINE_ T cast(const Variant &p_variant) {
return p_variant;
using TStripped = std::remove_pointer_t<T>;
if constexpr (std::is_base_of<Object, TStripped>::value) {
return Object::cast_to<TStripped>(p_variant);
} else {
return p_variant;
}
}
};
template <class T>
struct VariantCaster<T &> {
static _FORCE_INLINE_ T cast(const Variant &p_variant) {
return p_variant;
using TStripped = std::remove_pointer_t<T>;
if constexpr (std::is_base_of<Object, TStripped>::value) {
return Object::cast_to<TStripped>(p_variant);
} else {
return p_variant;
}
}
};
template <class T>
struct VariantCaster<const T &> {
static _FORCE_INLINE_ T cast(const Variant &p_variant) {
return p_variant;
using TStripped = std::remove_pointer_t<T>;
if constexpr (std::is_base_of<Object, TStripped>::value) {
return Object::cast_to<TStripped>(p_variant);
} else {
return p_variant;
}
}
};