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提交 075ab306 编写于 作者: E Eduard Burtescu
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rustc: de-@ metadata::cstore.

上级 fa33012b
隐藏空白更改
内联 并排
Showing with 83 addition and 73 deletion
src/librustc/metadata/creader.rs
浏览文件 @ 075ab306
......@@ -279,7 +279,7 @@ fn resolve_crate<'a>(e: &mut Env,
hash: Option<&Svh>,
should_link: bool,
span: Span)
-> (ast::CrateNum, @cstore::crate_metadata,
-> (ast::CrateNum, Rc<cstore::crate_metadata>,
cstore::CrateSource) {
match existing_match(e, crate_id, hash) {
None => {
......@@ -330,13 +330,13 @@ fn resolve_crate<'a>(e: &mut Env,
-1
};
let cmeta = @cstore::crate_metadata {
let cmeta = Rc::new(cstore::crate_metadata {
name: load_ctxt.crate_id.name.to_owned(),
data: metadata,
cnum_map: cnum_map,
cnum: cnum,
span: span,
};
});
let source = cstore::CrateSource {
dylib: dylib,
......@@ -345,7 +345,7 @@ fn resolve_crate<'a>(e: &mut Env,
};
if should_link {
e.sess.cstore.set_crate_data(cnum, cmeta);
e.sess.cstore.set_crate_data(cnum, cmeta.clone());
e.sess.cstore.add_used_crate_source(source.clone());
}
(cnum, cmeta, source)
......@@ -402,8 +402,8 @@ fn load_crate(&mut self, krate: &ast::ViewItem) -> MacroCrate {
info.ident, &info.crate_id,
None, info.should_link,
krate.span);
let macros = decoder::get_exported_macros(data);
let registrar = decoder::get_macro_registrar_fn(data).map(|id| {
let macros = decoder::get_exported_macros(&*data);
let registrar = decoder::get_macro_registrar_fn(&*data).map(|id| {
decoder::get_symbol(data.data.as_slice(), id)
});
MacroCrate {
......
src/librustc/metadata/csearch.rs
浏览文件 @ 075ab306
......@@ -33,8 +33,8 @@ pub struct StaticMethodInfo {
}
pub fn get_symbol(cstore: &cstore::CStore, def: ast::DefId) -> ~str {
let cdata = cstore.get_crate_data(def.krate).data();
return decoder::get_symbol(cdata, def.node);
let cdata = cstore.get_crate_data(def.krate);
decoder::get_symbol(cdata.data(), def.node)
}
/// Iterates over all the language items in the given crate.
......@@ -43,7 +43,7 @@ pub fn each_lang_item(cstore: &cstore::CStore,
f: |ast::NodeId, uint| -> bool)
-> bool {
let crate_data = cstore.get_crate_data(cnum);
decoder::each_lang_item(crate_data, f)
decoder::each_lang_item(&*crate_data, f)
}
/// Iterates over each child of the given item.
......@@ -57,7 +57,7 @@ pub fn each_child_of_item(cstore: &cstore::CStore,
cstore.get_crate_data(cnum)
};
decoder::each_child_of_item(cstore.intr.clone(),
crate_data,
&*crate_data,
def_id.node,
get_crate_data,
callback)
......@@ -74,7 +74,7 @@ pub fn each_top_level_item_of_crate(cstore: &cstore::CStore,
cstore.get_crate_data(cnum)
};
decoder::each_top_level_item_of_crate(cstore.intr.clone(),
crate_data,
&*crate_data,
get_crate_data,
callback)
}
......@@ -82,7 +82,7 @@ pub fn each_top_level_item_of_crate(cstore: &cstore::CStore,
pub fn get_item_path(tcx: &ty::ctxt, def: ast::DefId) -> Vec<ast_map::PathElem> {
let cstore = &tcx.sess.cstore;
let cdata = cstore.get_crate_data(def.krate);
let path = decoder::get_item_path(cdata, def.node);
let path = decoder::get_item_path(&*cdata, def.node);
// FIXME #1920: This path is not always correct if the crate is not linked
// into the root namespace.
......@@ -103,26 +103,26 @@ pub fn maybe_get_item_ast(tcx: &ty::ctxt, def: ast::DefId,
-> found_ast {
let cstore = &tcx.sess.cstore;
let cdata = cstore.get_crate_data(def.krate);
decoder::maybe_get_item_ast(cdata, tcx, def.node, decode_inlined_item)
decoder::maybe_get_item_ast(&*cdata, tcx, def.node, decode_inlined_item)
}
pub fn get_enum_variants(tcx: &ty::ctxt, def: ast::DefId)
-> Vec<@ty::VariantInfo> {
let cstore = &tcx.sess.cstore;
let cdata = cstore.get_crate_data(def.krate);
return decoder::get_enum_variants(cstore.intr.clone(), cdata, def.node, tcx)
return decoder::get_enum_variants(cstore.intr.clone(), &*cdata, def.node, tcx)
}
/// Returns information about the given implementation.
pub fn get_impl(tcx: &ty::ctxt, impl_def_id: ast::DefId)
-> ty::Impl {
let cdata = tcx.sess.cstore.get_crate_data(impl_def_id.krate);
decoder::get_impl(tcx.sess.cstore.intr.clone(), cdata, impl_def_id.node, tcx)
decoder::get_impl(tcx.sess.cstore.intr.clone(), &*cdata, impl_def_id.node, tcx)
}
pub fn get_method(tcx: &ty::ctxt, def: ast::DefId) -> ty::Method {
let cdata = tcx.sess.cstore.get_crate_data(def.krate);
decoder::get_method(tcx.sess.cstore.intr.clone(), cdata, def.node, tcx)
decoder::get_method(tcx.sess.cstore.intr.clone(), &*cdata, def.node, tcx)
}
pub fn get_method_name_and_explicit_self(cstore: &cstore::CStore,
......@@ -130,19 +130,19 @@ pub fn get_method_name_and_explicit_self(cstore: &cstore::CStore,
-> (ast::Ident, ast::ExplicitSelf_)
{
let cdata = cstore.get_crate_data(def.krate);
decoder::get_method_name_and_explicit_self(cstore.intr.clone(), cdata, def.node)
decoder::get_method_name_and_explicit_self(cstore.intr.clone(), &*cdata, def.node)
}
pub fn get_trait_method_def_ids(cstore: &cstore::CStore,
def: ast::DefId) -> Vec<ast::DefId> {
let cdata = cstore.get_crate_data(def.krate);
decoder::get_trait_method_def_ids(cdata, def.node)
decoder::get_trait_method_def_ids(&*cdata, def.node)
}
pub fn get_item_variances(cstore: &cstore::CStore,
def: ast::DefId) -> ty::ItemVariances {
let cdata = cstore.get_crate_data(def.krate);
decoder::get_item_variances(cdata, def.node)
decoder::get_item_variances(&*cdata, def.node)
}
pub fn get_provided_trait_methods(tcx: &ty::ctxt,
......@@ -150,40 +150,40 @@ pub fn get_provided_trait_methods(tcx: &ty::ctxt,
-> Vec<@ty::Method> {
let cstore = &tcx.sess.cstore;
let cdata = cstore.get_crate_data(def.krate);
decoder::get_provided_trait_methods(cstore.intr.clone(), cdata, def.node, tcx)
decoder::get_provided_trait_methods(cstore.intr.clone(), &*cdata, def.node, tcx)
}
pub fn get_supertraits(tcx: &ty::ctxt, def: ast::DefId) -> Vec<@ty::TraitRef> {
let cstore = &tcx.sess.cstore;
let cdata = cstore.get_crate_data(def.krate);
decoder::get_supertraits(cdata, def.node, tcx)
decoder::get_supertraits(&*cdata, def.node, tcx)
}
pub fn get_type_name_if_impl(cstore: &cstore::CStore, def: ast::DefId)
-> Option<ast::Ident> {
let cdata = cstore.get_crate_data(def.krate);
decoder::get_type_name_if_impl(cdata, def.node)
decoder::get_type_name_if_impl(&*cdata, def.node)
}
pub fn get_static_methods_if_impl(cstore: &cstore::CStore,
def: ast::DefId)
-> Option<Vec<StaticMethodInfo> > {
let cdata = cstore.get_crate_data(def.krate);
decoder::get_static_methods_if_impl(cstore.intr.clone(), cdata, def.node)
decoder::get_static_methods_if_impl(cstore.intr.clone(), &*cdata, def.node)
}
pub fn get_item_attrs(cstore: &cstore::CStore,
def_id: ast::DefId,
f: |Vec<@ast::MetaItem> |) {
let cdata = cstore.get_crate_data(def_id.krate);
decoder::get_item_attrs(cdata, def_id.node, f)
decoder::get_item_attrs(&*cdata, def_id.node, f)
}
pub fn get_struct_fields(cstore: &cstore::CStore,
def: ast::DefId)
-> Vec<ty::field_ty> {
let cdata = cstore.get_crate_data(def.krate);
decoder::get_struct_fields(cstore.intr.clone(), cdata, def.node)
decoder::get_struct_fields(cstore.intr.clone(), &*cdata, def.node)
}
pub fn get_type(tcx: &ty::ctxt,
......@@ -191,13 +191,13 @@ pub fn get_type(tcx: &ty::ctxt,
-> ty::ty_param_bounds_and_ty {
let cstore = &tcx.sess.cstore;
let cdata = cstore.get_crate_data(def.krate);
decoder::get_type(cdata, def.node, tcx)
decoder::get_type(&*cdata, def.node, tcx)
}
pub fn get_trait_def(tcx: &ty::ctxt, def: ast::DefId) -> ty::TraitDef {
let cstore = &tcx.sess.cstore;
let cdata = cstore.get_crate_data(def.krate);
decoder::get_trait_def(cdata, def.node, tcx)
decoder::get_trait_def(&*cdata, def.node, tcx)
}
pub fn get_field_type(tcx: &ty::ctxt, class_id: ast::DefId,
......@@ -213,7 +213,7 @@ pub fn get_field_type(tcx: &ty::ctxt, class_id: ast::DefId,
decoder::maybe_find_item(def.node, class_doc),
|| format!("get_field_type: in class {:?}, field ID {:?} not found",
class_id, def) );
let ty = decoder::item_type(def, the_field, tcx, cdata);
let ty = decoder::item_type(def, the_field, tcx, &*cdata);
ty::ty_param_bounds_and_ty {
generics: ty::Generics {type_param_defs: Rc::new(Vec::new()),
region_param_defs: Rc::new(Vec::new())},
......@@ -227,7 +227,7 @@ pub fn get_impl_trait(tcx: &ty::ctxt,
def: ast::DefId) -> Option<@ty::TraitRef> {
let cstore = &tcx.sess.cstore;
let cdata = cstore.get_crate_data(def.krate);
decoder::get_impl_trait(cdata, def.node, tcx)
decoder::get_impl_trait(&*cdata, def.node, tcx)
}
// Given a def_id for an impl, return information about its vtables
......@@ -235,35 +235,35 @@ pub fn get_impl_vtables(tcx: &ty::ctxt,
def: ast::DefId) -> typeck::impl_res {
let cstore = &tcx.sess.cstore;
let cdata = cstore.get_crate_data(def.krate);
decoder::get_impl_vtables(cdata, def.node, tcx)
decoder::get_impl_vtables(&*cdata, def.node, tcx)
}
pub fn get_native_libraries(cstore: &cstore::CStore,
crate_num: ast::CrateNum)
-> Vec<(cstore::NativeLibaryKind, ~str)> {
let cdata = cstore.get_crate_data(crate_num);
decoder::get_native_libraries(cdata)
decoder::get_native_libraries(&*cdata)
}
pub fn each_impl(cstore: &cstore::CStore,
crate_num: ast::CrateNum,
callback: |ast::DefId|) {
let cdata = cstore.get_crate_data(crate_num);
decoder::each_impl(cdata, callback)
decoder::each_impl(&*cdata, callback)
}
pub fn each_implementation_for_type(cstore: &cstore::CStore,
def_id: ast::DefId,
callback: |ast::DefId|) {
let cdata = cstore.get_crate_data(def_id.krate);
decoder::each_implementation_for_type(cdata, def_id.node, callback)
decoder::each_implementation_for_type(&*cdata, def_id.node, callback)
}
pub fn each_implementation_for_trait(cstore: &cstore::CStore,
def_id: ast::DefId,
callback: |ast::DefId|) {
let cdata = cstore.get_crate_data(def_id.krate);
decoder::each_implementation_for_trait(cdata, def_id.node, callback)
decoder::each_implementation_for_trait(&*cdata, def_id.node, callback)
}
/// If the given def ID describes a method belonging to a trait (either a
......@@ -274,21 +274,21 @@ pub fn get_trait_of_method(cstore: &cstore::CStore,
tcx: &ty::ctxt)
-> Option<ast::DefId> {
let cdata = cstore.get_crate_data(def_id.krate);
decoder::get_trait_of_method(cdata, def_id.node, tcx)
decoder::get_trait_of_method(&*cdata, def_id.node, tcx)
}
pub fn get_macro_registrar_fn(cstore: &cstore::CStore,
crate_num: ast::CrateNum)
-> Option<ast::NodeId> {
let cdata = cstore.get_crate_data(crate_num);
decoder::get_macro_registrar_fn(cdata)
decoder::get_macro_registrar_fn(&*cdata)
}
pub fn get_exported_macros(cstore: &cstore::CStore,
crate_num: ast::CrateNum)
-> Vec<~str> {
let cdata = cstore.get_crate_data(crate_num);
decoder::get_exported_macros(cdata)
decoder::get_exported_macros(&*cdata)
}
pub fn get_tuple_struct_definition_if_ctor(cstore: &cstore::CStore,
......@@ -296,5 +296,5 @@ pub fn get_tuple_struct_definition_if_ctor(cstore: &cstore::CStore,
-> Option<ast::DefId>
{
let cdata = cstore.get_crate_data(def_id.krate);
decoder::get_tuple_struct_definition_if_ctor(cdata, def_id.node)
decoder::get_tuple_struct_definition_if_ctor(&*cdata, def_id.node)
}
src/librustc/metadata/cstore.rs
浏览文件 @ 075ab306
......@@ -68,7 +68,7 @@ pub struct CrateSource {
}
pub struct CStore {
metas: RefCell<HashMap<ast::CrateNum, @crate_metadata>>,
metas: RefCell<HashMap<ast::CrateNum, Rc<crate_metadata>>>,
extern_mod_crate_map: RefCell<extern_mod_crate_map>,
used_crate_sources: RefCell<Vec<CrateSource>>,
used_libraries: RefCell<Vec<(~str, NativeLibaryKind)>>,
......@@ -95,8 +95,8 @@ pub fn next_crate_num(&self) -> ast::CrateNum {
self.metas.borrow().len() as ast::CrateNum + 1
}
pub fn get_crate_data(&self, cnum: ast::CrateNum) -> @crate_metadata {
*self.metas.borrow().get(&cnum)
pub fn get_crate_data(&self, cnum: ast::CrateNum) -> Rc<crate_metadata> {
self.metas.borrow().get(&cnum).clone()
}
pub fn get_crate_hash(&self, cnum: ast::CrateNum) -> Svh {
......@@ -104,13 +104,13 @@ pub fn get_crate_hash(&self, cnum: ast::CrateNum) -> Svh {
decoder::get_crate_hash(cdata.data())
}
pub fn set_crate_data(&self, cnum: ast::CrateNum, data: @crate_metadata) {
pub fn set_crate_data(&self, cnum: ast::CrateNum, data: Rc<crate_metadata>) {
self.metas.borrow_mut().insert(cnum, data);
}
pub fn iter_crate_data(&self, i: |ast::CrateNum, @crate_metadata|) {
for (&k, &v) in self.metas.borrow().iter() {
i(k, v);
pub fn iter_crate_data(&self, i: |ast::CrateNum, &crate_metadata|) {
for (&k, v) in self.metas.borrow().iter() {
i(k, &**v);
}
}
......
src/librustc/metadata/decoder.rs
浏览文件 @ 075ab306
......@@ -45,7 +45,7 @@
use syntax::codemap;
use syntax::crateid::CrateId;
pub type Cmd = @crate_metadata;
pub type Cmd<'a> = &'a crate_metadata;
// A function that takes a def_id relative to the crate being searched and
// returns a def_id relative to the compilation environment, i.e. if we hit a
......@@ -76,8 +76,6 @@ fn lookup_hash<'a>(d: ebml::Doc<'a>, eq_fn: |&[u8]| -> bool,
ret
}
pub type GetCrateDataCb<'a> = |ast::CrateNum|: 'a -> Cmd;
pub fn maybe_find_item<'a>(item_id: ast::NodeId,
items: ebml::Doc<'a>) -> Option<ebml::Doc<'a>> {
fn eq_item(bytes: &[u8], item_id: ast::NodeId) -> bool {
......@@ -462,6 +460,8 @@ pub fn each_lang_item(cdata: Cmd, f: |ast::NodeId, uint| -> bool) -> bool {
})
}
pub type GetCrateDataCb<'a> = |ast::CrateNum|: 'a -> Rc<crate_metadata>;
fn each_child_of_item_or_crate(intr: Rc<IdentInterner>,
cdata: Cmd,
item_doc: ebml::Doc,
......@@ -477,13 +477,18 @@ fn each_child_of_item_or_crate(intr: Rc<IdentInterner>,
// This item may be in yet another crate if it was the child of a
// reexport.
let other_crates_items = if child_def_id.krate == cdata.cnum {
reader::get_doc(reader::Doc(cdata.data()), tag_items)
let crate_data = if child_def_id.krate == cdata.cnum {
None
} else {
let crate_data = get_crate_data(child_def_id.krate);
reader::get_doc(reader::Doc(crate_data.data()), tag_items)
Some(get_crate_data(child_def_id.krate))
};
let crate_data = match crate_data {
Some(ref cdata) => &**cdata,
None => cdata
};
let other_crates_items = reader::get_doc(reader::Doc(crate_data.data()), tag_items);
// Get the item.
match maybe_find_item(child_def_id.node, other_crates_items) {
None => {}
......@@ -565,13 +570,18 @@ fn each_child_of_item_or_crate(intr: Rc<IdentInterner>,
let name = name_doc.as_str_slice();
// This reexport may be in yet another crate.
let other_crates_items = if child_def_id.krate == cdata.cnum {
reader::get_doc(reader::Doc(cdata.data()), tag_items)
let crate_data = if child_def_id.krate == cdata.cnum {
None
} else {
let crate_data = get_crate_data(child_def_id.krate);
reader::get_doc(reader::Doc(crate_data.data()), tag_items)
Some(get_crate_data(child_def_id.krate))
};
let crate_data = match crate_data {
Some(ref cdata) => &**cdata,
None => cdata
};
let other_crates_items = reader::get_doc(reader::Doc(crate_data.data()), tag_items);
// Get the item.
match maybe_find_item(child_def_id.node, other_crates_items) {
None => {}
......@@ -634,7 +644,7 @@ pub fn get_item_path(cdata: Cmd, id: ast::NodeId) -> Vec<ast_map::PathElem> {
item_path(lookup_item(id, cdata.data()))
}
pub type DecodeInlinedItem<'a> = |cdata: @cstore::crate_metadata,
pub type DecodeInlinedItem<'a> = |cdata: Cmd,
tcx: &ty::ctxt,
path: Vec<ast_map::PathElem>,
par_doc: ebml::Doc|: 'a
......
src/librustc/middle/astencode.rs
浏览文件 @ 075ab306
......@@ -59,7 +59,7 @@ pub struct Maps {
}
struct DecodeContext<'a> {
cdata: @cstore::crate_metadata,
cdata: &'a cstore::crate_metadata,
tcx: &'a ty::ctxt,
maps: &'a Maps
}
......@@ -110,7 +110,7 @@ pub fn encode_inlined_item(ecx: &e::EncodeContext,
ebml_w.writer.tell());
}
pub fn decode_inlined_item(cdata: @cstore::crate_metadata,
pub fn decode_inlined_item(cdata: &cstore::crate_metadata,
tcx: &ty::ctxt,
maps: &Maps,
path: Vec<ast_map::PathElem>,
......@@ -271,7 +271,7 @@ fn emit_def_id(&mut self, did: ast::DefId) {
trait def_id_decoder_helpers {
fn read_def_id(&mut self, xcx: &ExtendedDecodeContext) -> ast::DefId;
fn read_def_id_noxcx(&mut self,
cdata: @cstore::crate_metadata) -> ast::DefId;
cdata: &cstore::crate_metadata) -> ast::DefId;
}
impl<D:serialize::Decoder<E>, E> def_id_decoder_helpers for D {
......@@ -281,7 +281,7 @@ fn read_def_id(&mut self, xcx: &ExtendedDecodeContext) -> ast::DefId {
}
fn read_def_id_noxcx(&mut self,
cdata: @cstore::crate_metadata) -> ast::DefId {
cdata: &cstore::crate_metadata) -> ast::DefId {
let did: ast::DefId = Decodable::decode(self).ok().unwrap();
decoder::translate_def_id(cdata, did)
}
......@@ -725,23 +725,23 @@ pub fn encode_vtable_origin(ecx: &e::EncodeContext,
pub trait vtable_decoder_helpers {
fn read_vtable_res_with_key(&mut self,
tcx: &ty::ctxt,
cdata: @cstore::crate_metadata)
cdata: &cstore::crate_metadata)
-> (u32, typeck::vtable_res);
fn read_vtable_res(&mut self,
tcx: &ty::ctxt, cdata: @cstore::crate_metadata)
tcx: &ty::ctxt, cdata: &cstore::crate_metadata)
-> typeck::vtable_res;
fn read_vtable_param_res(&mut self,
tcx: &ty::ctxt, cdata: @cstore::crate_metadata)
tcx: &ty::ctxt, cdata: &cstore::crate_metadata)
-> typeck::vtable_param_res;
fn read_vtable_origin(&mut self,
tcx: &ty::ctxt, cdata: @cstore::crate_metadata)
tcx: &ty::ctxt, cdata: &cstore::crate_metadata)
-> typeck::vtable_origin;
}
impl<'a> vtable_decoder_helpers for reader::Decoder<'a> {
fn read_vtable_res_with_key(&mut self,
tcx: &ty::ctxt,
cdata: @cstore::crate_metadata)
cdata: &cstore::crate_metadata)
-> (u32, typeck::vtable_res) {
self.read_struct("VtableWithKey", 2, |this| {
let autoderef = this.read_struct_field("autoderef", 0, |this| {
......@@ -754,21 +754,21 @@ fn read_vtable_res_with_key(&mut self,
}
fn read_vtable_res(&mut self,
tcx: &ty::ctxt, cdata: @cstore::crate_metadata)
tcx: &ty::ctxt, cdata: &cstore::crate_metadata)
-> typeck::vtable_res {
self.read_to_vec(|this| Ok(this.read_vtable_param_res(tcx, cdata)))
.unwrap().move_iter().collect()
}
fn read_vtable_param_res(&mut self,
tcx: &ty::ctxt, cdata: @cstore::crate_metadata)
tcx: &ty::ctxt, cdata: &cstore::crate_metadata)
-> typeck::vtable_param_res {
self.read_to_vec(|this| Ok(this.read_vtable_origin(tcx, cdata)))
.unwrap().move_iter().collect()
}
fn read_vtable_origin(&mut self,
tcx: &ty::ctxt, cdata: @cstore::crate_metadata)
tcx: &ty::ctxt, cdata: &cstore::crate_metadata)
-> typeck::vtable_origin {
self.read_enum("vtable_origin", |this| {
this.read_enum_variant(["vtable_static",
......@@ -1140,15 +1140,15 @@ fn convert_def_id(&mut self,
// Versions of the type reading functions that don't need the full
// ExtendedDecodeContext.
fn read_ty_noxcx(&mut self,
tcx: &ty::ctxt, cdata: @cstore::crate_metadata) -> ty::t;
tcx: &ty::ctxt, cdata: &cstore::crate_metadata) -> ty::t;
fn read_tys_noxcx(&mut self,
tcx: &ty::ctxt,
cdata: @cstore::crate_metadata) -> Vec<ty::t>;
cdata: &cstore::crate_metadata) -> Vec<ty::t>;
}
impl<'a> ebml_decoder_decoder_helpers for reader::Decoder<'a> {
fn read_ty_noxcx(&mut self,
tcx: &ty::ctxt, cdata: @cstore::crate_metadata) -> ty::t {
tcx: &ty::ctxt, cdata: &cstore::crate_metadata) -> ty::t {
self.read_opaque(|_, doc| {
Ok(tydecode::parse_ty_data(
doc.data,
......@@ -1161,7 +1161,7 @@ fn read_ty_noxcx(&mut self,
fn read_tys_noxcx(&mut self,
tcx: &ty::ctxt,
cdata: @cstore::crate_metadata) -> Vec<ty::t> {
cdata: &cstore::crate_metadata) -> Vec<ty::t> {
self.read_to_vec(|this| Ok(this.read_ty_noxcx(tcx, cdata)) )
.unwrap()
.move_iter()
......
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