mod scope; use std::sync::Arc; use ra_syntax::ast::{self, NameOwner}; use crate::{ HirDatabase, Name, AsName, Function, FnSignature, type_ref::{TypeRef, Mutability}, expr::Body, impl_block::ImplBlock, }; pub use self::scope::{FnScopes, ScopesWithSyntaxMapping, ScopeEntryWithSyntax}; impl Function { pub(crate) fn body(&self, db: &impl HirDatabase) -> Arc { db.body_hir(*self) } /// The containing impl block, if this is a method. pub(crate) fn impl_block(&self, db: &impl HirDatabase) -> Option { let module_impls = db.impls_in_module(self.module(db)); ImplBlock::containing(module_impls, (*self).into()) } } impl FnSignature { pub(crate) fn fn_signature_query(db: &impl HirDatabase, func: Function) -> Arc { let (_, node) = func.source(db); 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) } }