2020-08-14 13:43:34 -05:00
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//! Provides set of implementation for hir's objects that allows get back location in file.
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2019-09-30 03:58:53 -05:00
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2019-12-03 10:07:56 -06:00
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use either::Either;
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2019-11-28 09:05:28 -06:00
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use hir_def::{
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2020-06-11 04:04:09 -05:00
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nameres::{ModuleOrigin, ModuleSource},
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2019-11-28 09:05:28 -06:00
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src::{HasChildSource, HasSource as _},
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2022-03-08 16:51:48 -06:00
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Lookup, MacroId, VariantId,
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2019-11-28 09:05:28 -06:00
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};
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2021-03-19 13:56:13 -05:00
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use hir_expand::InFile;
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2020-08-12 11:26:51 -05:00
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use syntax::ast;
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2019-06-11 10:00:08 -05:00
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use crate::{
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2023-02-26 06:34:41 -06:00
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db::HirDatabase, Adt, Const, Enum, Field, FieldSource, Function, Impl, LifetimeParam,
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LocalSource, Macro, Module, Static, Struct, Trait, TypeAlias, TraitAlias, TypeOrConstParam, Union, Variant,
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2019-06-11 10:00:08 -05:00
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};
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pub trait HasSource {
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type Ast;
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2022-01-14 03:59:27 -06:00
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/// Fetches the definition's source node.
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/// Using [`crate::Semantics::source`] is preferred when working with [`crate::Semantics`],
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/// as that caches the parsed file in the semantics' cache.
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>>;
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2019-06-11 10:00:08 -05:00
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}
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2019-06-11 10:11:17 -05:00
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/// NB: Module is !HasSource, because it has two source nodes at the same time:
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2019-06-11 10:00:08 -05:00
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/// definition and declaration.
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impl Module {
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/// Returns a node which defines this module. That is, a file or a `mod foo {}` with items.
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2020-03-13 10:05:46 -05:00
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pub fn definition_source(self, db: &dyn HirDatabase) -> InFile<ModuleSource> {
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2021-01-22 09:31:40 -06:00
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let def_map = self.id.def_map(db.upcast());
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2020-03-13 10:05:46 -05:00
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def_map[self.id.local_id].definition_source(db.upcast())
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2019-06-11 10:00:08 -05:00
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}
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2020-06-11 04:04:09 -05:00
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pub fn is_mod_rs(self, db: &dyn HirDatabase) -> bool {
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2021-01-22 09:31:40 -06:00
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let def_map = self.id.def_map(db.upcast());
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2020-06-11 04:04:09 -05:00
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match def_map[self.id.local_id].origin {
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ModuleOrigin::File { is_mod_rs, .. } => is_mod_rs,
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_ => false,
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}
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}
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2022-05-25 10:47:11 -05:00
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pub fn is_inline(self, db: &dyn HirDatabase) -> bool {
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let def_map = self.id.def_map(db.upcast());
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def_map[self.id.local_id].origin.is_inline()
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}
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2019-06-11 10:00:08 -05:00
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/// Returns a node which declares this module, either a `mod foo;` or a `mod foo {}`.
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/// `None` for the crate root.
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2020-03-13 10:05:46 -05:00
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pub fn declaration_source(self, db: &dyn HirDatabase) -> Option<InFile<ast::Module>> {
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let def_map = self.id.def_map(db.upcast());
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2020-03-13 10:05:46 -05:00
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def_map[self.id.local_id].declaration_source(db.upcast())
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2019-06-11 10:00:08 -05:00
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}
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}
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2020-04-25 07:23:34 -05:00
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impl HasSource for Field {
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2019-06-11 10:00:08 -05:00
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type Ast = FieldSource;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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let var = VariantId::from(self.parent);
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let src = var.child_source(db.upcast());
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let field_source = src.map(|it| match it[self.id].clone() {
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Either::Left(it) => FieldSource::Pos(it),
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Either::Right(it) => FieldSource::Named(it),
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});
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Some(field_source)
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}
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2019-06-11 10:00:08 -05:00
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}
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2021-08-09 16:26:28 -05:00
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impl HasSource for Adt {
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type Ast = ast::Adt;
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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match self {
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Adt::Struct(s) => Some(s.source(db)?.map(ast::Adt::Struct)),
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Adt::Union(u) => Some(u.source(db)?.map(ast::Adt::Union)),
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Adt::Enum(e) => Some(e.source(db)?.map(ast::Adt::Enum)),
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2021-08-09 16:26:28 -05:00
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}
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}
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}
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2019-06-11 10:00:08 -05:00
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impl HasSource for Struct {
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2020-07-30 10:50:40 -05:00
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type Ast = ast::Struct;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.id.lookup(db.upcast()).source(db.upcast()))
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}
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2019-06-11 10:00:08 -05:00
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}
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impl HasSource for Union {
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2020-07-30 10:36:46 -05:00
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type Ast = ast::Union;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.id.lookup(db.upcast()).source(db.upcast()))
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}
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2019-06-11 10:00:08 -05:00
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}
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impl HasSource for Enum {
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2020-07-30 10:52:53 -05:00
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type Ast = ast::Enum;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.id.lookup(db.upcast()).source(db.upcast()))
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}
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2019-06-11 10:00:08 -05:00
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}
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2020-12-20 01:05:24 -06:00
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impl HasSource for Variant {
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2020-07-30 10:56:53 -05:00
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type Ast = ast::Variant;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<ast::Variant>> {
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Some(self.parent.id.child_source(db.upcast()).map(|map| map[self.id].clone()))
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}
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2019-06-11 10:00:08 -05:00
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}
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impl HasSource for Function {
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2020-07-30 07:51:08 -05:00
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type Ast = ast::Fn;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.id.lookup(db.upcast()).source(db.upcast()))
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}
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2019-06-11 10:00:08 -05:00
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}
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impl HasSource for Const {
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2020-07-30 11:02:20 -05:00
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type Ast = ast::Const;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.id.lookup(db.upcast()).source(db.upcast()))
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}
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2019-06-11 10:00:08 -05:00
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}
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impl HasSource for Static {
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2020-07-30 11:02:20 -05:00
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type Ast = ast::Static;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.id.lookup(db.upcast()).source(db.upcast()))
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}
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2019-06-11 10:00:08 -05:00
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}
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impl HasSource for Trait {
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2020-07-30 11:17:28 -05:00
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type Ast = ast::Trait;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.id.lookup(db.upcast()).source(db.upcast()))
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}
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2019-06-11 10:00:08 -05:00
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}
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2023-03-03 09:24:07 -06:00
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impl HasSource for TraitAlias {
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type Ast = ast::TraitAlias;
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.id.lookup(db.upcast()).source(db.upcast()))
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}
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}
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2019-06-11 10:00:08 -05:00
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impl HasSource for TypeAlias {
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2020-07-30 08:25:46 -05:00
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type Ast = ast::TypeAlias;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.id.lookup(db.upcast()).source(db.upcast()))
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}
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2019-06-11 10:00:08 -05:00
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}
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2022-03-08 16:51:48 -06:00
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impl HasSource for Macro {
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2021-03-18 10:11:18 -05:00
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type Ast = Either<ast::Macro, ast::Fn>;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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2022-03-08 16:51:48 -06:00
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match self.id {
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MacroId::Macro2Id(it) => Some(
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it.lookup(db.upcast())
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.source(db.upcast())
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.map(ast::Macro::MacroDef)
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.map(Either::Left),
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),
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MacroId::MacroRulesId(it) => Some(
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it.lookup(db.upcast())
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.source(db.upcast())
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.map(ast::Macro::MacroRules)
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.map(Either::Left),
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),
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MacroId::ProcMacroId(it) => {
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Some(it.lookup(db.upcast()).source(db.upcast()).map(Either::Right))
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}
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}
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2020-12-31 20:27:38 -06:00
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}
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2019-06-11 10:00:08 -05:00
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}
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2020-12-17 05:36:15 -06:00
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impl HasSource for Impl {
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2020-07-30 11:28:28 -05:00
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type Ast = ast::Impl;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.id.lookup(db.upcast()).source(db.upcast()))
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}
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2019-11-24 12:03:24 -06:00
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}
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2019-12-07 11:24:52 -06:00
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2021-12-29 07:35:59 -06:00
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impl HasSource for TypeOrConstParam {
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2023-03-03 09:24:07 -06:00
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type Ast = Either<ast::TypeOrConstParam, ast::TraitOrAlias>;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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let child_source = self.id.parent.child_source(db.upcast());
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Some(child_source.map(|it| it[self.id.local_id].clone()))
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}
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2020-12-13 15:13:16 -06:00
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}
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impl HasSource for LifetimeParam {
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type Ast = ast::LifetimeParam;
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2020-12-31 20:27:38 -06:00
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fn source(self, db: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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let child_source = self.id.parent.child_source(db.upcast());
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Some(child_source.map(|it| it[self.id.local_id].clone()))
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}
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2019-12-07 11:24:52 -06:00
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}
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2023-02-26 06:34:41 -06:00
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impl HasSource for LocalSource {
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type Ast = Either<ast::IdentPat, ast::SelfParam>;
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fn source(self, _: &dyn HirDatabase) -> Option<InFile<Self::Ast>> {
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Some(self.source)
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}
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}
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