mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-25 08:13:41 +00:00
Support macro for trait items
This commit is contained in:
Edwin Cheng
parent
2474f42ae9
commit
8b6216df05
@ -150,51 +150,31 @@ pub struct TraitData {
|
||||
|
||||
impl TraitData {
|
||||
pub(crate) fn trait_data_query(db: &dyn DefDatabase, tr: TraitId) -> Arc<TraitData> {
|
||||
let src = tr.lookup(db).source(db);
|
||||
let tr_loc = tr.lookup(db);
|
||||
let src = tr_loc.source(db);
|
||||
let name = src.value.name().map_or_else(Name::missing, |n| n.as_name());
|
||||
let auto = src.value.auto_token().is_some();
|
||||
let ast_id_map = db.ast_id_map(src.file_id);
|
||||
let module_id = tr_loc.container.module(db);
|
||||
|
||||
let container = AssocContainerId::TraitId(tr);
|
||||
let items = if let Some(item_list) = src.value.item_list() {
|
||||
item_list
|
||||
.impl_items()
|
||||
.map(|item_node| match item_node {
|
||||
ast::ImplItem::FnDef(it) => {
|
||||
let name = it.name().map_or_else(Name::missing, |it| it.as_name());
|
||||
let def = FunctionLoc {
|
||||
container,
|
||||
ast_id: AstId::new(src.file_id, ast_id_map.ast_id(&it)),
|
||||
}
|
||||
.intern(db)
|
||||
.into();
|
||||
(name, def)
|
||||
}
|
||||
ast::ImplItem::ConstDef(it) => {
|
||||
let name = it.name().map_or_else(Name::missing, |it| it.as_name());
|
||||
let def = ConstLoc {
|
||||
container,
|
||||
ast_id: AstId::new(src.file_id, ast_id_map.ast_id(&it)),
|
||||
}
|
||||
.intern(db)
|
||||
.into();
|
||||
(name, def)
|
||||
}
|
||||
ast::ImplItem::TypeAliasDef(it) => {
|
||||
let name = it.name().map_or_else(Name::missing, |it| it.as_name());
|
||||
let def = TypeAliasLoc {
|
||||
container,
|
||||
ast_id: AstId::new(src.file_id, ast_id_map.ast_id(&it)),
|
||||
}
|
||||
.intern(db)
|
||||
.into();
|
||||
(name, def)
|
||||
}
|
||||
})
|
||||
.collect()
|
||||
} else {
|
||||
Vec::new()
|
||||
};
|
||||
let mut items = Vec::new();
|
||||
|
||||
if let Some(item_list) = src.value.item_list() {
|
||||
let mut expander = Expander::new(db, tr_loc.ast_id.file_id, module_id);
|
||||
items.extend(collect_impl_items(
|
||||
db,
|
||||
&mut expander,
|
||||
item_list.impl_items(),
|
||||
src.file_id,
|
||||
container,
|
||||
));
|
||||
items.extend(collect_impl_items_in_macros(
|
||||
db,
|
||||
&mut expander,
|
||||
&src.with_value(item_list),
|
||||
container,
|
||||
));
|
||||
}
|
||||
Arc::new(TraitData { name, items, auto })
|
||||
}
|
||||
|
||||
@ -232,24 +212,33 @@ impl ImplData {
|
||||
let target_type = TypeRef::from_ast_opt(&lower_ctx, src.value.target_type());
|
||||
let is_negative = src.value.excl_token().is_some();
|
||||
let module_id = impl_loc.container.module(db);
|
||||
let container = AssocContainerId::ImplId(id);
|
||||
|
||||
let mut items = Vec::new();
|
||||
let mut items: Vec<AssocItemId> = Vec::new();
|
||||
|
||||
if let Some(item_list) = src.value.item_list() {
|
||||
let mut expander = Expander::new(db, impl_loc.ast_id.file_id, module_id);
|
||||
items.extend(collect_impl_items(
|
||||
db,
|
||||
&mut expander,
|
||||
item_list.impl_items(),
|
||||
src.file_id,
|
||||
id,
|
||||
));
|
||||
items.extend(collect_impl_items_in_macros(
|
||||
db,
|
||||
&mut expander,
|
||||
&src.with_value(item_list),
|
||||
id,
|
||||
));
|
||||
items.extend(
|
||||
collect_impl_items(
|
||||
db,
|
||||
&mut expander,
|
||||
item_list.impl_items(),
|
||||
src.file_id,
|
||||
container,
|
||||
)
|
||||
.into_iter()
|
||||
.map(|(_, item)| item),
|
||||
);
|
||||
items.extend(
|
||||
collect_impl_items_in_macros(
|
||||
db,
|
||||
&mut expander,
|
||||
&src.with_value(item_list),
|
||||
container,
|
||||
)
|
||||
.into_iter()
|
||||
.map(|(_, item)| item),
|
||||
);
|
||||
}
|
||||
|
||||
let res = ImplData { target_trait, target_type, items, is_negative };
|
||||
@ -296,15 +285,15 @@ fn collect_impl_items_in_macros(
|
||||
db: &dyn DefDatabase,
|
||||
expander: &mut Expander,
|
||||
impl_def: &InFile<ast::ItemList>,
|
||||
id: ImplId,
|
||||
) -> Vec<AssocItemId> {
|
||||
container: AssocContainerId,
|
||||
) -> Vec<(Name, AssocItemId)> {
|
||||
let mut res = Vec::new();
|
||||
|
||||
// We set a limit to protect against infinite recursion
|
||||
let limit = 100;
|
||||
|
||||
for m in impl_def.value.syntax().children().filter_map(ast::MacroCall::cast) {
|
||||
res.extend(collect_impl_items_in_macro(db, expander, m, id, limit))
|
||||
res.extend(collect_impl_items_in_macro(db, expander, m, container, limit))
|
||||
}
|
||||
|
||||
res
|
||||
@ -314,9 +303,9 @@ fn collect_impl_items_in_macro(
|
||||
db: &dyn DefDatabase,
|
||||
expander: &mut Expander,
|
||||
m: ast::MacroCall,
|
||||
id: ImplId,
|
||||
container: AssocContainerId,
|
||||
limit: usize,
|
||||
) -> Vec<AssocItemId> {
|
||||
) -> Vec<(Name, AssocItemId)> {
|
||||
if limit == 0 {
|
||||
return Vec::new();
|
||||
}
|
||||
@ -328,13 +317,14 @@ fn collect_impl_items_in_macro(
|
||||
expander,
|
||||
items.value.items().filter_map(|it| ImplItem::cast(it.syntax().clone())),
|
||||
items.file_id,
|
||||
id,
|
||||
container,
|
||||
);
|
||||
|
||||
// Recursive collect macros
|
||||
// Note that ast::ModuleItem do not include ast::MacroCall
|
||||
// We cannot use ModuleItemOwner::items here
|
||||
for it in items.value.syntax().children().filter_map(ast::MacroCall::cast) {
|
||||
res.extend(collect_impl_items_in_macro(db, expander, it, id, limit - 1))
|
||||
res.extend(collect_impl_items_in_macro(db, expander, it, container, limit - 1))
|
||||
}
|
||||
expander.exit(db, mark);
|
||||
res
|
||||
@ -348,39 +338,34 @@ fn collect_impl_items(
|
||||
expander: &mut Expander,
|
||||
impl_items: impl Iterator<Item = ImplItem>,
|
||||
file_id: crate::HirFileId,
|
||||
id: ImplId,
|
||||
) -> Vec<AssocItemId> {
|
||||
container: AssocContainerId,
|
||||
) -> Vec<(Name, AssocItemId)> {
|
||||
let items = db.ast_id_map(file_id);
|
||||
|
||||
impl_items
|
||||
.filter_map(|item_node| match item_node {
|
||||
ast::ImplItem::FnDef(it) => {
|
||||
let name = it.name().map_or_else(Name::missing, |it| it.as_name());
|
||||
let attrs = expander.parse_attrs(&it);
|
||||
if !expander.is_cfg_enabled(&attrs) {
|
||||
return None;
|
||||
}
|
||||
let def = FunctionLoc {
|
||||
container: AssocContainerId::ImplId(id),
|
||||
ast_id: AstId::new(file_id, items.ast_id(&it)),
|
||||
}
|
||||
.intern(db);
|
||||
Some(def.into())
|
||||
let def = FunctionLoc { container, ast_id: AstId::new(file_id, items.ast_id(&it)) }
|
||||
.intern(db);
|
||||
Some((name, def.into()))
|
||||
}
|
||||
ast::ImplItem::ConstDef(it) => {
|
||||
let def = ConstLoc {
|
||||
container: AssocContainerId::ImplId(id),
|
||||
ast_id: AstId::new(file_id, items.ast_id(&it)),
|
||||
}
|
||||
.intern(db);
|
||||
Some(def.into())
|
||||
let name = it.name().map_or_else(Name::missing, |it| it.as_name());
|
||||
let def = ConstLoc { container, ast_id: AstId::new(file_id, items.ast_id(&it)) }
|
||||
.intern(db);
|
||||
Some((name, def.into()))
|
||||
}
|
||||
ast::ImplItem::TypeAliasDef(it) => {
|
||||
let def = TypeAliasLoc {
|
||||
container: AssocContainerId::ImplId(id),
|
||||
ast_id: AstId::new(file_id, items.ast_id(&it)),
|
||||
}
|
||||
.intern(db);
|
||||
Some(def.into())
|
||||
let name = it.name().map_or_else(Name::missing, |it| it.as_name());
|
||||
let def =
|
||||
TypeAliasLoc { container, ast_id: AstId::new(file_id, items.ast_id(&it)) }
|
||||
.intern(db);
|
||||
Some((name, def.into()))
|
||||
}
|
||||
})
|
||||
.collect()
|
||||
|
||||
@ -2055,7 +2055,7 @@ fn test<I: Iterator<Item: Iterator<Item = u32>>>() {
|
||||
#[test]
|
||||
fn proc_macro_server_types() {
|
||||
assert_snapshot!(
|
||||
infer_with_mismatches(r#"
|
||||
infer(r#"
|
||||
macro_rules! with_api {
|
||||
($S:ident, $self:ident, $m:ident) => {
|
||||
$m! {
|
||||
@ -2069,9 +2069,9 @@ macro_rules! with_api {
|
||||
}
|
||||
macro_rules! associated_item {
|
||||
(type TokenStream) =>
|
||||
(type TokenStream: 'static + Clone;);
|
||||
(type TokenStream: 'static;);
|
||||
(type Group) =>
|
||||
(type Group: 'static + Clone;);
|
||||
(type Group: 'static;);
|
||||
($($item:tt)*) => ($($item)*;)
|
||||
}
|
||||
macro_rules! declare_server_traits {
|
||||
@ -2083,39 +2083,41 @@ macro_rules! declare_server_traits {
|
||||
}
|
||||
|
||||
$(pub trait $name: Types {
|
||||
$(associated_item!(fn $method(&mut self, $($arg: $arg_ty),*) $(-> $ret_ty)?);)*
|
||||
$(associated_item!(fn $method($($arg: $arg_ty),*) $(-> $ret_ty)?);)*
|
||||
})*
|
||||
|
||||
pub trait Server: Types $(+ $name)* {}
|
||||
impl<S: Types $(+ $name)*> Server for S {}
|
||||
}
|
||||
}
|
||||
|
||||
with_api!(Self, self_, declare_server_traits);
|
||||
struct Group {}
|
||||
struct TokenStream {}
|
||||
struct G {}
|
||||
struct T {}
|
||||
struct Rustc;
|
||||
impl Types for Rustc {
|
||||
type TokenStream = TokenStream;
|
||||
type Group = Group;
|
||||
type TokenStream = T;
|
||||
type Group = G;
|
||||
}
|
||||
|
||||
fn make<T>() -> T { loop {} }
|
||||
impl TokenStream for Rustc {
|
||||
fn new() -> Self::TokenStream {
|
||||
let group: Self::Group = make();
|
||||
make()
|
||||
}
|
||||
}
|
||||
"#, true),
|
||||
}
|
||||
"#),
|
||||
@r###"
|
||||
1115..1126 '{ loop {} }': T
|
||||
1117..1124 'loop {}': !
|
||||
1122..1124 '{}': ()
|
||||
1190..1253 '{ ... }': {unknown}
|
||||
1204..1209 'group': {unknown}
|
||||
1225..1229 'make': fn make<{unknown}>() -> {unknown}
|
||||
1225..1231 'make()': {unknown}
|
||||
1241..1245 'make': fn make<{unknown}>() -> {unknown}
|
||||
1241..1247 'make()': {unknown}
|
||||
1062..1073 '{ loop {} }': T
|
||||
1064..1071 'loop {}': !
|
||||
1069..1071 '{}': ()
|
||||
1137..1200 '{ ... }': T
|
||||
1151..1156 'group': G
|
||||
1172..1176 'make': fn make<G>() -> G
|
||||
1172..1178 'make()': G
|
||||
1188..1192 'make': fn make<T>() -> T
|
||||
1188..1194 'make()': T
|
||||
"###
|
||||
);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user