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|
//! Attributes & documentation for hir types.
use hir_def::{
attr::Attrs,
db::DefDatabase,
docs::Documentation,
resolver::{HasResolver, Resolver},
AdtId, AttrDefId, FunctionId, GenericDefId, ModuleId, StaticId, TraitId, VariantId,
};
use hir_ty::db::HirDatabase;
use crate::{
doc_links::Resolvable, Adt, Const, Enum, EnumVariant, Field, Function, GenericDef, ImplDef,
Local, MacroDef, Module, ModuleDef, Static, Struct, Trait, TypeAlias, TypeParam, Union,
};
pub trait HasAttrs {
fn attrs(self, db: &dyn HirDatabase) -> Attrs;
fn docs(self, db: &dyn HirDatabase) -> Option<Documentation>;
}
macro_rules! impl_has_attrs {
($(($def:ident, $def_id:ident),)*) => {$(
impl HasAttrs for $def {
fn attrs(self, db: &dyn HirDatabase) -> Attrs {
let def = AttrDefId::$def_id(self.into());
db.attrs(def)
}
fn docs(self, db: &dyn HirDatabase) -> Option<Documentation> {
let def = AttrDefId::$def_id(self.into());
db.documentation(def)
}
}
)*};
}
impl_has_attrs![
(Field, FieldId),
(EnumVariant, EnumVariantId),
(Static, StaticId),
(Const, ConstId),
(Trait, TraitId),
(TypeAlias, TypeAliasId),
(MacroDef, MacroDefId),
(Function, FunctionId),
(Adt, AdtId),
(Module, ModuleId),
];
macro_rules! impl_has_attrs_adt {
($($adt:ident),*) => {$(
impl HasAttrs for $adt {
fn attrs(self, db: &dyn HirDatabase) -> Attrs {
Adt::$adt(self).attrs(db)
}
fn docs(self, db: &dyn HirDatabase) -> Option<Documentation> {
Adt::$adt(self).docs(db)
}
}
)*};
}
impl_has_attrs_adt![Struct, Union, Enum];
impl Resolvable for ModuleDef {
fn resolver<D: DefDatabase + HirDatabase>(&self, db: &D) -> Option<Resolver> {
Some(match self {
ModuleDef::Module(m) => ModuleId::from(m.clone()).resolver(db),
ModuleDef::Function(f) => FunctionId::from(f.clone()).resolver(db),
ModuleDef::Adt(adt) => AdtId::from(adt.clone()).resolver(db),
ModuleDef::EnumVariant(ev) => {
GenericDefId::from(GenericDef::from(ev.clone())).resolver(db)
}
ModuleDef::Const(c) => GenericDefId::from(GenericDef::from(c.clone())).resolver(db),
ModuleDef::Static(s) => StaticId::from(s.clone()).resolver(db),
ModuleDef::Trait(t) => TraitId::from(t.clone()).resolver(db),
ModuleDef::TypeAlias(t) => ModuleId::from(t.module(db)).resolver(db),
// FIXME: This should be a resolver relative to `std/core`
ModuleDef::BuiltinType(_t) => None?,
})
}
fn try_into_module_def(self) -> Option<ModuleDef> {
Some(self)
}
}
impl Resolvable for TypeParam {
fn resolver<D: DefDatabase + HirDatabase>(&self, db: &D) -> Option<Resolver> {
Some(ModuleId::from(self.module(db)).resolver(db))
}
fn try_into_module_def(self) -> Option<ModuleDef> {
None
}
}
impl Resolvable for MacroDef {
fn resolver<D: DefDatabase + HirDatabase>(&self, db: &D) -> Option<Resolver> {
Some(ModuleId::from(self.module(db)?).resolver(db))
}
fn try_into_module_def(self) -> Option<ModuleDef> {
None
}
}
impl Resolvable for Field {
fn resolver<D: DefDatabase + HirDatabase>(&self, db: &D) -> Option<Resolver> {
Some(VariantId::from(self.parent_def(db)).resolver(db))
}
fn try_into_module_def(self) -> Option<ModuleDef> {
None
}
}
impl Resolvable for ImplDef {
fn resolver<D: DefDatabase + HirDatabase>(&self, db: &D) -> Option<Resolver> {
Some(ModuleId::from(self.module(db)).resolver(db))
}
fn try_into_module_def(self) -> Option<ModuleDef> {
None
}
}
impl Resolvable for Local {
fn resolver<D: DefDatabase + HirDatabase>(&self, db: &D) -> Option<Resolver> {
Some(ModuleId::from(self.module(db)).resolver(db))
}
fn try_into_module_def(self) -> Option<ModuleDef> {
None
}
}
|
