| //! Contains basic data about various HIR declarations. |
| |
| pub mod adt; |
| |
| use base_db::CrateId; |
| use hir_expand::{ |
| name::Name, AstId, ExpandResult, HirFileId, InFile, MacroCallId, MacroCallKind, MacroDefKind, |
| }; |
| use intern::Interned; |
| use smallvec::SmallVec; |
| use syntax::{ast, Parse}; |
| use triomphe::Arc; |
| |
| use crate::{ |
| attr::Attrs, |
| db::DefDatabase, |
| expander::{Expander, Mark}, |
| item_tree::{self, AssocItem, FnFlags, ItemTree, ItemTreeId, MacroCall, ModItem, TreeId}, |
| macro_call_as_call_id, |
| nameres::{ |
| attr_resolution::ResolvedAttr, |
| diagnostics::{DefDiagnostic, DefDiagnostics}, |
| proc_macro::{parse_macro_name_and_helper_attrs, ProcMacroKind}, |
| DefMap, MacroSubNs, |
| }, |
| path::ImportAlias, |
| type_ref::{TraitRef, TypeBound, TypeRef}, |
| visibility::RawVisibility, |
| AssocItemId, AstIdWithPath, ConstId, ConstLoc, ExternCrateId, FunctionId, FunctionLoc, |
| HasModule, ImplId, Intern, ItemContainerId, ItemLoc, Lookup, Macro2Id, MacroRulesId, ModuleId, |
| ProcMacroId, StaticId, TraitAliasId, TraitId, TypeAliasId, TypeAliasLoc, |
| }; |
| |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct FunctionData { |
| pub name: Name, |
| pub params: Box<[Interned<TypeRef>]>, |
| pub ret_type: Interned<TypeRef>, |
| pub attrs: Attrs, |
| pub visibility: RawVisibility, |
| pub abi: Option<Interned<str>>, |
| pub legacy_const_generics_indices: Box<[u32]>, |
| pub rustc_allow_incoherent_impl: bool, |
| flags: FnFlags, |
| } |
| |
| impl FunctionData { |
| pub(crate) fn fn_data_query(db: &dyn DefDatabase, func: FunctionId) -> Arc<FunctionData> { |
| let loc = func.lookup(db); |
| let krate = loc.container.module(db).krate; |
| let item_tree = loc.id.item_tree(db); |
| let func = &item_tree[loc.id.value]; |
| let visibility = if let ItemContainerId::TraitId(trait_id) = loc.container { |
| trait_vis(db, trait_id) |
| } else { |
| item_tree[func.visibility].clone() |
| }; |
| |
| let crate_graph = db.crate_graph(); |
| let cfg_options = &crate_graph[krate].cfg_options; |
| let enabled_params = func |
| .params |
| .clone() |
| .filter(|¶m| item_tree.attrs(db, krate, param.into()).is_cfg_enabled(cfg_options)); |
| |
| // If last cfg-enabled param is a `...` param, it's a varargs function. |
| let is_varargs = enabled_params |
| .clone() |
| .next_back() |
| .map_or(false, |param| item_tree[param].type_ref.is_none()); |
| |
| let mut flags = func.flags; |
| if is_varargs { |
| flags |= FnFlags::IS_VARARGS; |
| } |
| if flags.contains(FnFlags::HAS_SELF_PARAM) { |
| // If there's a self param in the syntax, but it is cfg'd out, remove the flag. |
| let is_cfgd_out = match func.params.clone().next() { |
| Some(param) => { |
| !item_tree.attrs(db, krate, param.into()).is_cfg_enabled(cfg_options) |
| } |
| None => { |
| stdx::never!("fn HAS_SELF_PARAM but no parameters allocated"); |
| true |
| } |
| }; |
| if is_cfgd_out { |
| cov_mark::hit!(cfgd_out_self_param); |
| flags.remove(FnFlags::HAS_SELF_PARAM); |
| } |
| } |
| |
| let attrs = item_tree.attrs(db, krate, ModItem::from(loc.id.value).into()); |
| let legacy_const_generics_indices = attrs |
| .by_key("rustc_legacy_const_generics") |
| .tt_values() |
| .next() |
| .map(parse_rustc_legacy_const_generics) |
| .unwrap_or_default(); |
| let rustc_allow_incoherent_impl = attrs.by_key("rustc_allow_incoherent_impl").exists(); |
| |
| Arc::new(FunctionData { |
| name: func.name.clone(), |
| params: enabled_params |
| .clone() |
| .filter_map(|id| item_tree[id].type_ref.clone()) |
| .collect(), |
| ret_type: func.ret_type.clone(), |
| attrs: item_tree.attrs(db, krate, ModItem::from(loc.id.value).into()), |
| visibility, |
| abi: func.abi.clone(), |
| legacy_const_generics_indices, |
| flags, |
| rustc_allow_incoherent_impl, |
| }) |
| } |
| |
| pub fn has_body(&self) -> bool { |
| self.flags.contains(FnFlags::HAS_BODY) |
| } |
| |
| /// True if the first param is `self`. This is relevant to decide whether this |
| /// can be called as a method. |
| pub fn has_self_param(&self) -> bool { |
| self.flags.contains(FnFlags::HAS_SELF_PARAM) |
| } |
| |
| pub fn has_default_kw(&self) -> bool { |
| self.flags.contains(FnFlags::HAS_DEFAULT_KW) |
| } |
| |
| pub fn has_const_kw(&self) -> bool { |
| self.flags.contains(FnFlags::HAS_CONST_KW) |
| } |
| |
| pub fn has_async_kw(&self) -> bool { |
| self.flags.contains(FnFlags::HAS_ASYNC_KW) |
| } |
| |
| pub fn has_unsafe_kw(&self) -> bool { |
| self.flags.contains(FnFlags::HAS_UNSAFE_KW) |
| } |
| |
| pub fn is_varargs(&self) -> bool { |
| self.flags.contains(FnFlags::IS_VARARGS) |
| } |
| } |
| |
| fn parse_rustc_legacy_const_generics(tt: &crate::tt::Subtree) -> Box<[u32]> { |
| let mut indices = Vec::new(); |
| for args in tt.token_trees.chunks(2) { |
| match &args[0] { |
| tt::TokenTree::Leaf(tt::Leaf::Literal(lit)) => match lit.text.parse() { |
| Ok(index) => indices.push(index), |
| Err(_) => break, |
| }, |
| _ => break, |
| } |
| |
| if let Some(comma) = args.get(1) { |
| match comma { |
| tt::TokenTree::Leaf(tt::Leaf::Punct(punct)) if punct.char == ',' => {} |
| _ => break, |
| } |
| } |
| } |
| |
| indices.into_boxed_slice() |
| } |
| |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct TypeAliasData { |
| pub name: Name, |
| pub type_ref: Option<Interned<TypeRef>>, |
| pub visibility: RawVisibility, |
| pub is_extern: bool, |
| pub rustc_has_incoherent_inherent_impls: bool, |
| pub rustc_allow_incoherent_impl: bool, |
| /// Bounds restricting the type alias itself (eg. `type Ty: Bound;` in a trait or impl). |
| pub bounds: Box<[Interned<TypeBound>]>, |
| } |
| |
| impl TypeAliasData { |
| pub(crate) fn type_alias_data_query( |
| db: &dyn DefDatabase, |
| typ: TypeAliasId, |
| ) -> Arc<TypeAliasData> { |
| let loc = typ.lookup(db); |
| let item_tree = loc.id.item_tree(db); |
| let typ = &item_tree[loc.id.value]; |
| let visibility = if let ItemContainerId::TraitId(trait_id) = loc.container { |
| trait_vis(db, trait_id) |
| } else { |
| item_tree[typ.visibility].clone() |
| }; |
| |
| let attrs = item_tree.attrs( |
| db, |
| loc.container.module(db).krate(), |
| ModItem::from(loc.id.value).into(), |
| ); |
| let rustc_has_incoherent_inherent_impls = |
| attrs.by_key("rustc_has_incoherent_inherent_impls").exists(); |
| let rustc_allow_incoherent_impl = attrs.by_key("rustc_allow_incoherent_impl").exists(); |
| |
| Arc::new(TypeAliasData { |
| name: typ.name.clone(), |
| type_ref: typ.type_ref.clone(), |
| visibility, |
| is_extern: matches!(loc.container, ItemContainerId::ExternBlockId(_)), |
| rustc_has_incoherent_inherent_impls, |
| rustc_allow_incoherent_impl, |
| bounds: typ.bounds.clone(), |
| }) |
| } |
| } |
| |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct TraitData { |
| pub name: Name, |
| pub items: Vec<(Name, AssocItemId)>, |
| pub is_auto: bool, |
| pub is_unsafe: bool, |
| pub rustc_has_incoherent_inherent_impls: bool, |
| pub skip_array_during_method_dispatch: bool, |
| pub fundamental: bool, |
| pub visibility: RawVisibility, |
| /// Whether the trait has `#[rust_skip_array_during_method_dispatch]`. `hir_ty` will ignore |
| /// method calls to this trait's methods when the receiver is an array and the crate edition is |
| /// 2015 or 2018. |
| // box it as the vec is usually empty anyways |
| pub attribute_calls: Option<Box<Vec<(AstId<ast::Item>, MacroCallId)>>>, |
| } |
| |
| impl TraitData { |
| #[inline] |
| pub(crate) fn trait_data_query(db: &dyn DefDatabase, tr: TraitId) -> Arc<TraitData> { |
| db.trait_data_with_diagnostics(tr).0 |
| } |
| |
| pub(crate) fn trait_data_with_diagnostics_query( |
| db: &dyn DefDatabase, |
| tr: TraitId, |
| ) -> (Arc<TraitData>, DefDiagnostics) { |
| let ItemLoc { container: module_id, id: tree_id } = tr.lookup(db); |
| let item_tree = tree_id.item_tree(db); |
| let tr_def = &item_tree[tree_id.value]; |
| let name = tr_def.name.clone(); |
| let is_auto = tr_def.is_auto; |
| let is_unsafe = tr_def.is_unsafe; |
| let visibility = item_tree[tr_def.visibility].clone(); |
| let attrs = item_tree.attrs(db, module_id.krate(), ModItem::from(tree_id.value).into()); |
| let skip_array_during_method_dispatch = |
| attrs.by_key("rustc_skip_array_during_method_dispatch").exists(); |
| let rustc_has_incoherent_inherent_impls = |
| attrs.by_key("rustc_has_incoherent_inherent_impls").exists(); |
| let fundamental = attrs.by_key("fundamental").exists(); |
| let mut collector = |
| AssocItemCollector::new(db, module_id, tree_id.file_id(), ItemContainerId::TraitId(tr)); |
| collector.collect(&item_tree, tree_id.tree_id(), &tr_def.items); |
| let (items, attribute_calls, diagnostics) = collector.finish(); |
| |
| ( |
| Arc::new(TraitData { |
| name, |
| attribute_calls, |
| items, |
| is_auto, |
| is_unsafe, |
| visibility, |
| skip_array_during_method_dispatch, |
| rustc_has_incoherent_inherent_impls, |
| fundamental, |
| }), |
| DefDiagnostics::new(diagnostics), |
| ) |
| } |
| |
| pub fn associated_types(&self) -> impl Iterator<Item = TypeAliasId> + '_ { |
| self.items.iter().filter_map(|(_name, item)| match item { |
| AssocItemId::TypeAliasId(t) => Some(*t), |
| _ => None, |
| }) |
| } |
| |
| pub fn associated_type_by_name(&self, name: &Name) -> Option<TypeAliasId> { |
| self.items.iter().find_map(|(item_name, item)| match item { |
| AssocItemId::TypeAliasId(t) if item_name == name => Some(*t), |
| _ => None, |
| }) |
| } |
| |
| pub fn method_by_name(&self, name: &Name) -> Option<FunctionId> { |
| self.items.iter().find_map(|(item_name, item)| match item { |
| AssocItemId::FunctionId(t) if item_name == name => Some(*t), |
| _ => None, |
| }) |
| } |
| |
| pub fn attribute_calls(&self) -> impl Iterator<Item = (AstId<ast::Item>, MacroCallId)> + '_ { |
| self.attribute_calls.iter().flat_map(|it| it.iter()).copied() |
| } |
| } |
| |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct TraitAliasData { |
| pub name: Name, |
| pub visibility: RawVisibility, |
| } |
| |
| impl TraitAliasData { |
| pub(crate) fn trait_alias_query(db: &dyn DefDatabase, id: TraitAliasId) -> Arc<TraitAliasData> { |
| let loc = id.lookup(db); |
| let item_tree = loc.id.item_tree(db); |
| let alias = &item_tree[loc.id.value]; |
| let visibility = item_tree[alias.visibility].clone(); |
| |
| Arc::new(TraitAliasData { name: alias.name.clone(), visibility }) |
| } |
| } |
| |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct ImplData { |
| pub target_trait: Option<Interned<TraitRef>>, |
| pub self_ty: Interned<TypeRef>, |
| pub items: Vec<AssocItemId>, |
| pub is_negative: bool, |
| pub is_unsafe: bool, |
| // box it as the vec is usually empty anyways |
| pub attribute_calls: Option<Box<Vec<(AstId<ast::Item>, MacroCallId)>>>, |
| } |
| |
| impl ImplData { |
| #[inline] |
| pub(crate) fn impl_data_query(db: &dyn DefDatabase, id: ImplId) -> Arc<ImplData> { |
| db.impl_data_with_diagnostics(id).0 |
| } |
| |
| pub(crate) fn impl_data_with_diagnostics_query( |
| db: &dyn DefDatabase, |
| id: ImplId, |
| ) -> (Arc<ImplData>, DefDiagnostics) { |
| let _p = tracing::span!(tracing::Level::INFO, "impl_data_with_diagnostics_query").entered(); |
| let ItemLoc { container: module_id, id: tree_id } = id.lookup(db); |
| |
| let item_tree = tree_id.item_tree(db); |
| let impl_def = &item_tree[tree_id.value]; |
| let target_trait = impl_def.target_trait.clone(); |
| let self_ty = impl_def.self_ty.clone(); |
| let is_negative = impl_def.is_negative; |
| let is_unsafe = impl_def.is_unsafe; |
| |
| let mut collector = |
| AssocItemCollector::new(db, module_id, tree_id.file_id(), ItemContainerId::ImplId(id)); |
| collector.collect(&item_tree, tree_id.tree_id(), &impl_def.items); |
| |
| let (items, attribute_calls, diagnostics) = collector.finish(); |
| let items = items.into_iter().map(|(_, item)| item).collect(); |
| |
| ( |
| Arc::new(ImplData { |
| target_trait, |
| self_ty, |
| items, |
| is_negative, |
| is_unsafe, |
| attribute_calls, |
| }), |
| DefDiagnostics::new(diagnostics), |
| ) |
| } |
| |
| pub fn attribute_calls(&self) -> impl Iterator<Item = (AstId<ast::Item>, MacroCallId)> + '_ { |
| self.attribute_calls.iter().flat_map(|it| it.iter()).copied() |
| } |
| } |
| |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct Macro2Data { |
| pub name: Name, |
| pub visibility: RawVisibility, |
| // It's a bit wasteful as currently this is only for builtin `Default` derive macro, but macro2 |
| // are rarely used in practice so I think it's okay for now. |
| /// Derive helpers, if this is a derive rustc_builtin_macro |
| pub helpers: Option<Box<[Name]>>, |
| } |
| |
| impl Macro2Data { |
| pub(crate) fn macro2_data_query(db: &dyn DefDatabase, makro: Macro2Id) -> Arc<Macro2Data> { |
| let loc = makro.lookup(db); |
| let item_tree = loc.id.item_tree(db); |
| let makro = &item_tree[loc.id.value]; |
| |
| let helpers = item_tree |
| .attrs(db, loc.container.krate(), ModItem::from(loc.id.value).into()) |
| .by_key("rustc_builtin_macro") |
| .tt_values() |
| .next() |
| .and_then(|attr| parse_macro_name_and_helper_attrs(&attr.token_trees)) |
| .map(|(_, helpers)| helpers); |
| |
| Arc::new(Macro2Data { |
| name: makro.name.clone(), |
| visibility: item_tree[makro.visibility].clone(), |
| helpers, |
| }) |
| } |
| } |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct MacroRulesData { |
| pub name: Name, |
| pub macro_export: bool, |
| } |
| |
| impl MacroRulesData { |
| pub(crate) fn macro_rules_data_query( |
| db: &dyn DefDatabase, |
| makro: MacroRulesId, |
| ) -> Arc<MacroRulesData> { |
| let loc = makro.lookup(db); |
| let item_tree = loc.id.item_tree(db); |
| let makro = &item_tree[loc.id.value]; |
| |
| let macro_export = item_tree |
| .attrs(db, loc.container.krate(), ModItem::from(loc.id.value).into()) |
| .by_key("macro_export") |
| .exists(); |
| |
| Arc::new(MacroRulesData { name: makro.name.clone(), macro_export }) |
| } |
| } |
| |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct ProcMacroData { |
| pub name: Name, |
| /// Derive helpers, if this is a derive |
| pub helpers: Option<Box<[Name]>>, |
| } |
| |
| impl ProcMacroData { |
| pub(crate) fn proc_macro_data_query( |
| db: &dyn DefDatabase, |
| makro: ProcMacroId, |
| ) -> Arc<ProcMacroData> { |
| let loc = makro.lookup(db); |
| let item_tree = loc.id.item_tree(db); |
| let makro = &item_tree[loc.id.value]; |
| |
| let (name, helpers) = if let Some(def) = item_tree |
| .attrs(db, loc.container.krate(), ModItem::from(loc.id.value).into()) |
| .parse_proc_macro_decl(&makro.name) |
| { |
| ( |
| def.name, |
| match def.kind { |
| ProcMacroKind::CustomDerive { helpers } => Some(helpers), |
| ProcMacroKind::FnLike | ProcMacroKind::Attr => None, |
| }, |
| ) |
| } else { |
| // eeeh... |
| stdx::never!("proc macro declaration is not a proc macro"); |
| (makro.name.clone(), None) |
| }; |
| Arc::new(ProcMacroData { name, helpers }) |
| } |
| } |
| |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct ExternCrateDeclData { |
| pub name: Name, |
| pub alias: Option<ImportAlias>, |
| pub visibility: RawVisibility, |
| pub crate_id: Option<CrateId>, |
| } |
| |
| impl ExternCrateDeclData { |
| pub(crate) fn extern_crate_decl_data_query( |
| db: &dyn DefDatabase, |
| extern_crate: ExternCrateId, |
| ) -> Arc<ExternCrateDeclData> { |
| let loc = extern_crate.lookup(db); |
| let item_tree = loc.id.item_tree(db); |
| let extern_crate = &item_tree[loc.id.value]; |
| |
| let name = extern_crate.name.clone(); |
| let crate_id = if name == hir_expand::name![self] { |
| Some(loc.container.krate()) |
| } else { |
| db.crate_def_map(loc.container.krate()) |
| .extern_prelude() |
| .find(|&(prelude_name, ..)| *prelude_name == name) |
| .map(|(_, (root, _))| root.krate()) |
| }; |
| |
| Arc::new(Self { |
| name: extern_crate.name.clone(), |
| visibility: item_tree[extern_crate.visibility].clone(), |
| alias: extern_crate.alias.clone(), |
| crate_id, |
| }) |
| } |
| } |
| |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct ConstData { |
| /// `None` for `const _: () = ();` |
| pub name: Option<Name>, |
| pub type_ref: Interned<TypeRef>, |
| pub visibility: RawVisibility, |
| pub rustc_allow_incoherent_impl: bool, |
| } |
| |
| impl ConstData { |
| pub(crate) fn const_data_query(db: &dyn DefDatabase, konst: ConstId) -> Arc<ConstData> { |
| let loc = konst.lookup(db); |
| let item_tree = loc.id.item_tree(db); |
| let konst = &item_tree[loc.id.value]; |
| let visibility = if let ItemContainerId::TraitId(trait_id) = loc.container { |
| trait_vis(db, trait_id) |
| } else { |
| item_tree[konst.visibility].clone() |
| }; |
| |
| let rustc_allow_incoherent_impl = item_tree |
| .attrs(db, loc.container.module(db).krate(), ModItem::from(loc.id.value).into()) |
| .by_key("rustc_allow_incoherent_impl") |
| .exists(); |
| |
| Arc::new(ConstData { |
| name: konst.name.clone(), |
| type_ref: konst.type_ref.clone(), |
| visibility, |
| rustc_allow_incoherent_impl, |
| }) |
| } |
| } |
| |
| #[derive(Debug, Clone, PartialEq, Eq)] |
| pub struct StaticData { |
| pub name: Name, |
| pub type_ref: Interned<TypeRef>, |
| pub visibility: RawVisibility, |
| pub mutable: bool, |
| pub is_extern: bool, |
| } |
| |
| impl StaticData { |
| pub(crate) fn static_data_query(db: &dyn DefDatabase, konst: StaticId) -> Arc<StaticData> { |
| let loc = konst.lookup(db); |
| let item_tree = loc.id.item_tree(db); |
| let statik = &item_tree[loc.id.value]; |
| |
| Arc::new(StaticData { |
| name: statik.name.clone(), |
| type_ref: statik.type_ref.clone(), |
| visibility: item_tree[statik.visibility].clone(), |
| mutable: statik.mutable, |
| is_extern: matches!(loc.container, ItemContainerId::ExternBlockId(_)), |
| }) |
| } |
| } |
| |
| struct AssocItemCollector<'a> { |
| db: &'a dyn DefDatabase, |
| module_id: ModuleId, |
| def_map: Arc<DefMap>, |
| diagnostics: Vec<DefDiagnostic>, |
| container: ItemContainerId, |
| expander: Expander, |
| |
| items: Vec<(Name, AssocItemId)>, |
| attr_calls: Vec<(AstId<ast::Item>, MacroCallId)>, |
| } |
| |
| impl<'a> AssocItemCollector<'a> { |
| fn new( |
| db: &'a dyn DefDatabase, |
| module_id: ModuleId, |
| file_id: HirFileId, |
| container: ItemContainerId, |
| ) -> Self { |
| Self { |
| db, |
| module_id, |
| def_map: module_id.def_map(db), |
| container, |
| expander: Expander::new(db, file_id, module_id), |
| items: Vec::new(), |
| attr_calls: Vec::new(), |
| diagnostics: Vec::new(), |
| } |
| } |
| |
| fn finish( |
| self, |
| ) -> ( |
| Vec<(Name, AssocItemId)>, |
| Option<Box<Vec<(AstId<ast::Item>, MacroCallId)>>>, |
| Vec<DefDiagnostic>, |
| ) { |
| ( |
| self.items, |
| if self.attr_calls.is_empty() { None } else { Some(Box::new(self.attr_calls)) }, |
| self.diagnostics, |
| ) |
| } |
| |
| fn collect(&mut self, item_tree: &ItemTree, tree_id: TreeId, assoc_items: &[AssocItem]) { |
| let container = self.container; |
| self.items.reserve(assoc_items.len()); |
| |
| 'items: for &item in assoc_items { |
| let attrs = item_tree.attrs(self.db, self.module_id.krate, ModItem::from(item).into()); |
| if !attrs.is_cfg_enabled(self.expander.cfg_options()) { |
| self.diagnostics.push(DefDiagnostic::unconfigured_code( |
| self.module_id.local_id, |
| InFile::new(self.expander.current_file_id(), item.ast_id(item_tree).erase()), |
| attrs.cfg().unwrap(), |
| self.expander.cfg_options().clone(), |
| )); |
| continue; |
| } |
| |
| 'attrs: for attr in &*attrs { |
| let ast_id = |
| AstId::new(self.expander.current_file_id(), item.ast_id(item_tree).upcast()); |
| let ast_id_with_path = AstIdWithPath { path: (*attr.path).clone(), ast_id }; |
| |
| match self.def_map.resolve_attr_macro( |
| self.db, |
| self.module_id.local_id, |
| ast_id_with_path, |
| attr, |
| ) { |
| Ok(ResolvedAttr::Macro(call_id)) => { |
| // If proc attribute macro expansion is disabled, skip expanding it here |
| if !self.db.expand_proc_attr_macros() { |
| continue 'attrs; |
| } |
| let loc = self.db.lookup_intern_macro_call(call_id); |
| if let MacroDefKind::ProcMacro(exp, ..) = loc.def.kind { |
| // If there's no expander for the proc macro (e.g. the |
| // proc macro is ignored, or building the proc macro |
| // crate failed), skip expansion like we would if it was |
| // disabled. This is analogous to the handling in |
| // `DefCollector::collect_macros`. |
| if exp.is_dummy() { |
| self.diagnostics.push(DefDiagnostic::unresolved_proc_macro( |
| self.module_id.local_id, |
| loc.kind, |
| loc.def.krate, |
| )); |
| |
| continue 'attrs; |
| } |
| if exp.is_disabled() { |
| continue 'attrs; |
| } |
| } |
| |
| self.attr_calls.push((ast_id, call_id)); |
| |
| let res = |
| self.expander.enter_expand_id::<ast::MacroItems>(self.db, call_id); |
| self.collect_macro_items(res, &|| loc.kind.clone()); |
| continue 'items; |
| } |
| Ok(_) => (), |
| Err(_) => { |
| self.diagnostics.push(DefDiagnostic::unresolved_macro_call( |
| self.module_id.local_id, |
| MacroCallKind::Attr { |
| ast_id, |
| attr_args: None, |
| invoc_attr_index: attr.id, |
| }, |
| attr.path().clone(), |
| )); |
| } |
| } |
| } |
| |
| self.collect_item(item_tree, tree_id, container, item); |
| } |
| } |
| |
| fn collect_item( |
| &mut self, |
| item_tree: &ItemTree, |
| tree_id: TreeId, |
| container: ItemContainerId, |
| item: AssocItem, |
| ) { |
| match item { |
| AssocItem::Function(id) => { |
| let item = &item_tree[id]; |
| |
| let def = |
| FunctionLoc { container, id: ItemTreeId::new(tree_id, id) }.intern(self.db); |
| self.items.push((item.name.clone(), def.into())); |
| } |
| AssocItem::Const(id) => { |
| let item = &item_tree[id]; |
| let Some(name) = item.name.clone() else { return }; |
| let def = ConstLoc { container, id: ItemTreeId::new(tree_id, id) }.intern(self.db); |
| self.items.push((name, def.into())); |
| } |
| AssocItem::TypeAlias(id) => { |
| let item = &item_tree[id]; |
| |
| let def = |
| TypeAliasLoc { container, id: ItemTreeId::new(tree_id, id) }.intern(self.db); |
| self.items.push((item.name.clone(), def.into())); |
| } |
| AssocItem::MacroCall(call) => { |
| let file_id = self.expander.current_file_id(); |
| let MacroCall { ast_id, expand_to, call_site, ref path } = item_tree[call]; |
| let module = self.expander.module.local_id; |
| |
| let resolver = |path| { |
| self.def_map |
| .resolve_path( |
| self.db, |
| module, |
| &path, |
| crate::item_scope::BuiltinShadowMode::Other, |
| Some(MacroSubNs::Bang), |
| ) |
| .0 |
| .take_macros() |
| .map(|it| self.db.macro_def(it)) |
| }; |
| match macro_call_as_call_id( |
| self.db.upcast(), |
| &AstIdWithPath::new(file_id, ast_id, Clone::clone(path)), |
| call_site, |
| expand_to, |
| self.expander.module.krate(), |
| resolver, |
| ) { |
| Ok(Some(call_id)) => { |
| let res = |
| self.expander.enter_expand_id::<ast::MacroItems>(self.db, call_id); |
| self.collect_macro_items(res, &|| hir_expand::MacroCallKind::FnLike { |
| ast_id: InFile::new(file_id, ast_id), |
| expand_to: hir_expand::ExpandTo::Items, |
| }); |
| } |
| Ok(None) => (), |
| Err(_) => { |
| self.diagnostics.push(DefDiagnostic::unresolved_macro_call( |
| self.module_id.local_id, |
| MacroCallKind::FnLike { |
| ast_id: InFile::new(file_id, ast_id), |
| expand_to, |
| }, |
| Clone::clone(path), |
| )); |
| } |
| } |
| } |
| } |
| } |
| |
| fn collect_macro_items( |
| &mut self, |
| ExpandResult { value, err }: ExpandResult<Option<(Mark, Parse<ast::MacroItems>)>>, |
| error_call_kind: &dyn Fn() -> hir_expand::MacroCallKind, |
| ) { |
| let Some((mark, parse)) = value else { return }; |
| |
| if let Some(err) = err { |
| let diag = match err { |
| // why is this reported here? |
| hir_expand::ExpandError::UnresolvedProcMacro(krate) => { |
| DefDiagnostic::unresolved_proc_macro( |
| self.module_id.local_id, |
| error_call_kind(), |
| krate, |
| ) |
| } |
| _ => DefDiagnostic::macro_error( |
| self.module_id.local_id, |
| error_call_kind(), |
| err.to_string(), |
| ), |
| }; |
| self.diagnostics.push(diag); |
| } |
| let errors = parse.errors(); |
| if !errors.is_empty() { |
| self.diagnostics.push(DefDiagnostic::macro_expansion_parse_error( |
| self.module_id.local_id, |
| error_call_kind(), |
| errors.into_boxed_slice(), |
| )); |
| } |
| |
| let tree_id = item_tree::TreeId::new(self.expander.current_file_id(), None); |
| let item_tree = tree_id.item_tree(self.db); |
| let iter: SmallVec<[_; 2]> = |
| item_tree.top_level_items().iter().filter_map(ModItem::as_assoc_item).collect(); |
| |
| self.collect(&item_tree, tree_id, &iter); |
| |
| self.expander.exit(mark); |
| } |
| } |
| |
| fn trait_vis(db: &dyn DefDatabase, trait_id: TraitId) -> RawVisibility { |
| let ItemLoc { id: tree_id, .. } = trait_id.lookup(db); |
| let item_tree = tree_id.item_tree(db); |
| let tr_def = &item_tree[tree_id.value]; |
| item_tree[tr_def.visibility].clone() |
| } |
