2019-01-08 20:11:13 +03:00
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mod scope;
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use std::sync::Arc;
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2019-01-11 20:43:10 +03:00
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use ra_syntax::{TreeArc, ast::{self, NameOwner}};
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2019-01-08 20:11:13 +03:00
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use crate::{
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2019-01-11 20:43:10 +03:00
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DefId, HirDatabase, Name, AsName, Function, FnSignature, Module,
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2019-01-08 20:11:13 +03:00
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type_ref::{TypeRef, Mutability},
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expr::Body,
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impl_block::ImplBlock,
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2019-01-11 20:43:10 +03:00
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code_model_impl::def_id_to_ast,
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2019-01-08 20:11:13 +03:00
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};
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2019-01-11 14:00:54 +03:00
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pub use self::scope::{FnScopes, ScopesWithSyntaxMapping, ScopeEntryWithSyntax};
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2019-01-08 20:11:13 +03:00
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impl Function {
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pub(crate) fn new(def_id: DefId) -> Function {
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Function { def_id }
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}
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2019-01-15 19:01:59 +03:00
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pub(crate) fn body(&self, db: &impl HirDatabase) -> Arc<Body> {
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2019-01-08 20:11:13 +03:00
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db.body_hir(self.def_id)
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}
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2019-01-15 19:18:52 +03:00
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pub(crate) fn module(&self, db: &impl HirDatabase) -> Module {
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2019-01-08 20:11:13 +03:00
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self.def_id.module(db)
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}
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/// The containing impl block, if this is a method.
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2019-01-15 19:18:52 +03:00
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pub(crate) fn impl_block(&self, db: &impl HirDatabase) -> Option<ImplBlock> {
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2019-01-08 20:11:13 +03:00
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self.def_id.impl_block(db)
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}
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}
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impl FnSignature {
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pub(crate) fn fn_signature_query(db: &impl HirDatabase, def_id: DefId) -> Arc<FnSignature> {
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2019-01-11 20:43:10 +03:00
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// FIXME: we're using def_id_to_ast here to avoid returning Cancelable... this is a bit hacky
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let node: TreeArc<ast::FnDef> = def_id_to_ast(db, def_id).1;
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2019-01-08 00:30:49 +01:00
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let name = node
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.name()
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.map(|n| n.as_name())
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.unwrap_or_else(Name::missing);
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2019-01-12 21:58:16 +01:00
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let mut params = Vec::new();
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let mut has_self_param = false;
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2019-01-08 20:11:13 +03:00
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if let Some(param_list) = node.param_list() {
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if let Some(self_param) = param_list.self_param() {
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let self_type = if let Some(type_ref) = self_param.type_ref() {
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TypeRef::from_ast(type_ref)
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} else {
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let self_type = TypeRef::Path(Name::self_type().into());
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match self_param.flavor() {
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ast::SelfParamFlavor::Owned => self_type,
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ast::SelfParamFlavor::Ref => {
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TypeRef::Reference(Box::new(self_type), Mutability::Shared)
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}
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ast::SelfParamFlavor::MutRef => {
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TypeRef::Reference(Box::new(self_type), Mutability::Mut)
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}
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}
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};
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2019-01-12 21:58:16 +01:00
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params.push(self_type);
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has_self_param = true;
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2019-01-08 20:11:13 +03:00
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}
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for param in param_list.params() {
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let type_ref = TypeRef::from_ast_opt(param.type_ref());
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2019-01-12 21:58:16 +01:00
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params.push(type_ref);
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2019-01-08 20:11:13 +03:00
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}
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}
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let ret_type = if let Some(type_ref) = node.ret_type().and_then(|rt| rt.type_ref()) {
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TypeRef::from_ast(type_ref)
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} else {
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TypeRef::unit()
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};
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2019-01-08 00:30:49 +01:00
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let sig = FnSignature {
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name,
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2019-01-12 21:58:16 +01:00
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params,
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2019-01-08 00:30:49 +01:00
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ret_type,
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2019-01-12 21:58:16 +01:00
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has_self_param,
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2019-01-08 00:30:49 +01:00
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};
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2019-01-08 20:11:13 +03:00
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Arc::new(sig)
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}
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}
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