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#[macro_export]
macro_rules! decl_external {
($external:ty) => {
$crate::decl_internal!($external);
impl $crate::FromValue for $external {
fn from_value(value: $crate::Value) -> Result<Self, $crate::ValueError> {
let any = value.into_any()?;
let any = any.take_downcast::<$external>()?;
Ok(any)
}
}
};
}
#[macro_export]
macro_rules! decl_internal {
($external:ty) => {
impl $crate::ReflectValueType for $external {
type Owned = $external;
fn value_type() -> $crate::ValueType {
$crate::ValueType::Type($crate::Hash::of_any::<$external>())
}
fn value_type_info() -> $crate::ValueTypeInfo {
$crate::ValueTypeInfo::Any(std::any::type_name::<$external>())
}
}
impl<'a> $crate::ReflectValueType for &'a $external {
type Owned = $external;
fn value_type() -> $crate::ValueType {
$crate::ValueType::Type($crate::Hash::of_any::<$external>())
}
fn value_type_info() -> $crate::ValueTypeInfo {
$crate::ValueTypeInfo::Any(std::any::type_name::<$external>())
}
}
impl<'a> $crate::ReflectValueType for &'a mut $external {
type Owned = $external;
fn value_type() -> $crate::ValueType {
$crate::ValueType::Type($crate::Hash::of_any::<$external>())
}
fn value_type_info() -> $crate::ValueTypeInfo {
$crate::ValueTypeInfo::Any(std::any::type_name::<$external>())
}
}
impl $crate::ToValue for $external {
fn to_value(self) -> Result<$crate::Value, $crate::ValueError> {
let any = $crate::Any::new(self);
let shared = $crate::Shared::new(any);
Ok($crate::Value::Any(shared))
}
}
impl<'a> $crate::UnsafeFromValue for &'a $external {
type Output = *const $external;
type Guard = $crate::RawOwnedRef;
unsafe fn unsafe_from_value(
value: $crate::Value,
) -> Result<(Self::Output, Self::Guard), $crate::ValueError> {
Ok(value.unsafe_into_any_ref()?)
}
unsafe fn to_arg(output: Self::Output) -> Self {
&*output
}
}
impl<'a> $crate::UnsafeFromValue for &'a mut $external {
type Output = *mut $external;
type Guard = $crate::RawOwnedMut;
unsafe fn unsafe_from_value(
value: $crate::Value,
) -> Result<(Self::Output, Self::Guard), $crate::ValueError> {
Ok(value.unsafe_into_any_mut()?)
}
unsafe fn to_arg(output: Self::Output) -> Self {
&mut *output
}
}
};
}
macro_rules! value_types {
($static_type:expr, $owned:ty => $($(impl <$param:ident>)? $ty:ty),+) => {
$(
impl $(<$($param),*>)? $crate::ReflectValueType for $ty {
type Owned = $owned;
fn value_type() -> $crate::ValueType {
$crate::ValueType::StaticType($static_type)
}
fn value_type_info() -> $crate::ValueTypeInfo {
$crate::ValueTypeInfo::StaticType($static_type)
}
}
)*
};
(impl $static_type:expr, $owned:ty => $($param:ident $ty:ty),+) => {
$(
impl<$param> $crate::ReflectValueType for $ty {
type Owned = $owned;
fn value_type() -> $crate::ValueType {
$crate::ValueType::StaticType($static_type)
}
fn value_type_info() -> $crate::ValueTypeInfo {
$crate::ValueTypeInfo::StaticType($static_type)
}
}
)*
};
}