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crate mod cache;
crate mod item_type;
crate mod renderer;
use rustc_hir::def_id::DefId;
crate use renderer::{run_format, FormatRenderer};
use crate::clean::{self, ItemId};
/// Specifies whether rendering directly implemented trait items or ones from a certain Deref
/// impl.
crate enum AssocItemRender<'a> {
All,
DerefFor { trait_: &'a clean::Path, type_: &'a clean::Type, deref_mut_: bool },
}
/// For different handling of associated items from the Deref target of a type rather than the type
/// itself.
#[derive(Copy, Clone, PartialEq)]
crate enum RenderMode {
Normal,
ForDeref { mut_: bool },
}
/// Metadata about implementations for a type or trait.
#[derive(Clone, Debug)]
crate struct Impl {
crate impl_item: clean::Item,
}
impl Impl {
crate fn inner_impl(&self) -> &clean::Impl {
match *self.impl_item.kind {
clean::ImplItem(ref impl_) => impl_,
_ => panic!("non-impl item found in impl"),
}
}
crate fn trait_did(&self) -> Option<DefId> {
self.inner_impl().trait_.as_ref().map(|t| t.def_id())
}
/// This function is used to extract a `DefId` to be used as a key for the `Cache::impls` field.
///
/// It allows to prevent having duplicated implementations showing up (the biggest issue was
/// with blanket impls).
///
/// It panics if `self` is a `ItemId::Primitive`.
crate fn def_id(&self) -> DefId {
match self.impl_item.item_id {
ItemId::Blanket { impl_id, .. } => impl_id,
ItemId::Auto { trait_, .. } => trait_,
ItemId::DefId(def_id) => def_id,
ItemId::Primitive(_, _) => {
panic!(
"Unexpected ItemId::Primitive in expect_def_id: {:?}",
self.impl_item.item_id
)
}
}
}
}
|
