mod scope; use std::sync::Arc; use ra_db::Cancelable; use ra_syntax::{TreeArc, ast::{self, NameOwner}}; use crate::{ DefId, HirDatabase, Name, AsName, Function, FnSignature, Module, type_ref::{TypeRef, Mutability}, expr::Body, impl_block::ImplBlock, code_model_impl::def_id_to_ast, }; pub use self::scope::{FnScopes, ScopesWithSyntaxMapping, ScopeEntryWithSyntax}; impl Function { pub(crate) fn new(def_id: DefId) -> Function { Function { def_id } } pub(crate) fn body(&self, db: &impl HirDatabase) -> Arc { db.body_hir(self.def_id) } pub(crate) fn module(&self, db: &impl HirDatabase) -> Cancelable { self.def_id.module(db) } /// The containing impl block, if this is a method. pub(crate) fn impl_block(&self, db: &impl HirDatabase) -> Cancelable> { self.def_id.impl_block(db) } } impl FnSignature { pub(crate) fn fn_signature_query(db: &impl HirDatabase, def_id: DefId) -> Arc { // FIXME: we're using def_id_to_ast here to avoid returning Cancelable... this is a bit hacky let node: TreeArc = def_id_to_ast(db, def_id).1; let name = node .name() .map(|n| n.as_name()) .unwrap_or_else(Name::missing); let mut params = Vec::new(); let mut has_self_param = false; if let Some(param_list) = node.param_list() { if let Some(self_param) = param_list.self_param() { let self_type = if let Some(type_ref) = self_param.type_ref() { TypeRef::from_ast(type_ref) } else { let self_type = TypeRef::Path(Name::self_type().into()); match self_param.flavor() { ast::SelfParamFlavor::Owned => self_type, ast::SelfParamFlavor::Ref => { TypeRef::Reference(Box::new(self_type), Mutability::Shared) } ast::SelfParamFlavor::MutRef => { TypeRef::Reference(Box::new(self_type), Mutability::Mut) } } }; params.push(self_type); has_self_param = true; } for param in param_list.params() { let type_ref = TypeRef::from_ast_opt(param.type_ref()); params.push(type_ref); } } let ret_type = if let Some(type_ref) = node.ret_type().and_then(|rt| rt.type_ref()) { TypeRef::from_ast(type_ref) } else { TypeRef::unit() }; let sig = FnSignature { name, params, ret_type, has_self_param, }; Arc::new(sig) } }