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rustc_metadata: Cleanup fn encode_info_for_item

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This commit is contained in:
Vadim Petrochenkov 2023-03-23 19:34:18 +04:00
parent d4be8efc62
commit 9dd27b31ba
1 changed files with 33 additions and 62 deletions
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95
compiler/rustc_metadata/src/rmeta/encoder.rs
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@ -1523,23 +1523,32 @@ fn encode_rendered_const_for_body(&mut self, body_id: hir::BodyId) -> String {
})
}
fn encode_info_for_item(&mut self, def_id: DefId, item: &'tcx hir::Item<'tcx>) {
fn encode_info_for_item(&mut self, item: &'tcx hir::Item<'tcx>) {
let tcx = self.tcx;
let def_id = item.owner_id.to_def_id();
debug!("EncodeContext::encode_info_for_item({:?})", def_id);
let record_associated_item_def_ids = |this: &mut Self, def_ids: &[DefId]| {
record_array!(this.tables.children[def_id] <- def_ids.iter().map(|&def_id| {
assert!(def_id.is_local());
def_id.index
}))
};
match item.kind {
hir::ItemKind::Fn(ref sig, .., body) => {
self.tables.asyncness.set_some(def_id.index, sig.header.asyncness);
record_array!(self.tables.fn_arg_names[def_id] <- self.tcx.hir().body_param_names(body));
self.tables.constness.set_some(def_id.index, sig.header.constness);
record!(self.tables.fn_sig[def_id] <- tcx.fn_sig(def_id));
self.tables.is_intrinsic.set(def_id.index, tcx.is_intrinsic(def_id));
}
hir::ItemKind::Macro(ref macro_def, _) => {
self.tables.is_macro_rules.set(def_id.index, macro_def.macro_rules);
record!(self.tables.macro_definition[def_id] <- &*macro_def.body);
}
hir::ItemKind::Mod(ref m) => {
return self.encode_info_for_mod(item.owner_id.def_id, m);
self.encode_info_for_mod(item.owner_id.def_id, m);
}
hir::ItemKind::OpaqueTy(ref opaque) => {
self.encode_explicit_item_bounds(def_id);
@ -1550,9 +1559,11 @@ fn encode_info_for_item(&mut self, def_id: DefId, item: &'tcx hir::Item<'tcx>) {
hir::ItemKind::Impl(hir::Impl { defaultness, constness, .. }) => {
self.tables.impl_defaultness.set_some(def_id.index, *defaultness);
self.tables.constness.set_some(def_id.index, *constness);
self.tables.impl_polarity.set_some(def_id.index, self.tcx.impl_polarity(def_id));
if let Some(trait_ref) = self.tcx.impl_trait_ref(def_id) {
record!(self.tables.impl_trait_ref[def_id] <- trait_ref);
let trait_ref = self.tcx.impl_trait_ref(def_id);
if let Some(trait_ref) = trait_ref {
let trait_ref = trait_ref.skip_binder();
let trait_def = self.tcx.trait_def(trait_ref.def_id);
if let Ok(mut an) = trait_def.ancestors(self.tcx, def_id) {
@ -1570,21 +1581,27 @@ fn encode_info_for_item(&mut self, def_id: DefId, item: &'tcx hir::Item<'tcx>) {
}
}
let polarity = self.tcx.impl_polarity(def_id);
self.tables.impl_polarity.set_some(def_id.index, polarity);
let associated_item_def_ids = self.tcx.associated_item_def_ids(def_id);
record_associated_item_def_ids(self, associated_item_def_ids);
for &trait_item_def_id in associated_item_def_ids {
self.encode_info_for_impl_item(trait_item_def_id);
}
}
hir::ItemKind::Trait(..) => {
let trait_def = self.tcx.trait_def(def_id);
record!(self.tables.trait_def[def_id] <- trait_def);
record!(self.tables.trait_def[def_id] <- self.tcx.trait_def(def_id));
let associated_item_def_ids = self.tcx.associated_item_def_ids(def_id);
record_associated_item_def_ids(self, associated_item_def_ids);
for &item_def_id in associated_item_def_ids {
self.encode_info_for_trait_item(item_def_id);
}
}
hir::ItemKind::TraitAlias(..) => {
let trait_def = self.tcx.trait_def(def_id);
record!(self.tables.trait_def[def_id] <- trait_def);
record!(self.tables.trait_def[def_id] <- self.tcx.trait_def(def_id));
}
hir::ItemKind::ExternCrate(_) | hir::ItemKind::Use(..) => {
bug!("cannot encode info for item {:?}", item)
}
hir::ItemKind::Static(..)
hir::ItemKind::ExternCrate(_)
| hir::ItemKind::Use(..)
| hir::ItemKind::Static(..)
| hir::ItemKind::Const(..)
| hir::ItemKind::Enum(..)
| hir::ItemKind::Struct(..)
@ -1592,49 +1609,6 @@ fn encode_info_for_item(&mut self, def_id: DefId, item: &'tcx hir::Item<'tcx>) {
| hir::ItemKind::ForeignMod { .. }
| hir::ItemKind::GlobalAsm(..)
| hir::ItemKind::TyAlias(..) => {}
};
// FIXME(eddyb) there should be a nicer way to do this.
match item.kind {
hir::ItemKind::Impl { .. } | hir::ItemKind::Trait(..) => {
let associated_item_def_ids = self.tcx.associated_item_def_ids(def_id);
record_array!(self.tables.children[def_id] <-
associated_item_def_ids.iter().map(|&def_id| {
assert!(def_id.is_local());
def_id.index
})
);
}
_ => {}
}
if let hir::ItemKind::Fn(..) = item.kind {
record!(self.tables.fn_sig[def_id] <- tcx.fn_sig(def_id));
self.tables.is_intrinsic.set(def_id.index, tcx.is_intrinsic(def_id));
}
if let hir::ItemKind::Impl { .. } = item.kind {
if let Some(trait_ref) = self.tcx.impl_trait_ref(def_id) {
record!(self.tables.impl_trait_ref[def_id] <- trait_ref);
}
}
// In some cases, along with the item itself, we also
// encode some sub-items. Usually we want some info from the item
// so it's easier to do that here then to wait until we would encounter
// normally in the visitor walk.
match item.kind {
hir::ItemKind::Impl { .. } => {
for &trait_item_def_id in
self.tcx.associated_item_def_ids(item.owner_id.to_def_id()).iter()
{
self.encode_info_for_impl_item(trait_item_def_id);
}
}
hir::ItemKind::Trait(..) => {
for &item_def_id in
self.tcx.associated_item_def_ids(item.owner_id.to_def_id()).iter()
{
self.encode_info_for_trait_item(item_def_id);
}
}
_ => {}
}
}
@ -2020,10 +1994,7 @@ fn visit_expr(&mut self, ex: &'tcx hir::Expr<'tcx>) {
}
fn visit_item(&mut self, item: &'tcx hir::Item<'tcx>) {
intravisit::walk_item(self, item);
match item.kind {
hir::ItemKind::ExternCrate(_) | hir::ItemKind::Use(..) => {} // ignore these
_ => self.encode_info_for_item(item.owner_id.to_def_id(), item),
}
self.encode_info_for_item(item);
}
fn visit_foreign_item(&mut self, ni: &'tcx hir::ForeignItem<'tcx>) {
intravisit::walk_foreign_item(self, ni);