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macro_rules! forward_decorate_impl {
($($ty:ident => { $($variant:ident),+ }),+ $(,)?) => {
$(
impl Decorate for $ty {
fn decor(&self) -> &Decor {
match self {
$(
$ty::$variant(v) => v.decor(),
)*
}
}
fn decor_mut(&mut self) -> &mut Decor {
match self {
$(
$ty::$variant(v) => v.decor_mut(),
)*
}
}
}
)+
};
}
macro_rules! forward_span_impl {
($($ty:ident => { $($variant:ident),+ }),+ $(,)?) => {
$(
impl Span for $ty {
fn span(&self) -> Option<Range<usize>> {
match self {
$(
$ty::$variant(v) => v.span(),
)*
}
}
}
impl SetSpan for $ty {
fn set_span(&mut self, span: Range<usize>) {
match self {
$(
$ty::$variant(v) => v.set_span(span),
)*
}
}
}
)+
};
}
macro_rules! decorate_impl {
($($ty:ident),+ $(,)?) => {
$(
impl Decorate for $ty {
fn decor(&self) -> &Decor {
&self.decor
}
fn decor_mut(&mut self) -> &mut Decor {
&mut self.decor
}
}
)+
};
}
macro_rules! span_impl {
($($ty:ident),+ $(,)?) => {
$(
impl Span for $ty {
fn span(&self) -> Option<Range<usize>> {
self.span.clone()
}
}
impl SetSpan for $ty {
fn set_span(&mut self, span: Range<usize>) {
self.span = Some(span);
}
}
)+
};
}