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|
use std::sync::Arc;
use relative_path::RelativePathBuf;
use ra_db::{CrateId, FileId};
use ra_syntax::{ast, TreeArc, SyntaxNode};
use crate::{
Name, DefId, Path, PerNs, ScopesWithSyntaxMapping, Ty, HirFileId,
type_ref::TypeRef,
nameres::{ModuleScope, lower::ImportId},
db::HirDatabase,
expr::BodySyntaxMapping,
ty::InferenceResult,
adt::VariantData,
generics::Generics,
code_model_impl::def_id_to_ast,
};
/// hir::Crate describes a single crate. It's the main interface with which
/// a crate's dependencies interact. Mostly, it should be just a proxy for the
/// root module.
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Crate {
pub(crate) crate_id: CrateId,
}
#[derive(Debug)]
pub struct CrateDependency {
pub krate: Crate,
pub name: Name,
}
impl Crate {
pub fn crate_id(&self) -> CrateId {
self.crate_id
}
pub fn dependencies(&self, db: &impl HirDatabase) -> Vec<CrateDependency> {
self.dependencies_impl(db)
}
pub fn root_module(&self, db: &impl HirDatabase) -> Option<Module> {
self.root_module_impl(db)
}
}
#[derive(Debug)]
pub enum Def {
Module(Module),
Struct(Struct),
Enum(Enum),
EnumVariant(EnumVariant),
Function(Function),
Const(Const),
Static(Static),
Trait(Trait),
Type(Type),
Item,
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Module {
pub(crate) def_id: DefId,
}
pub enum ModuleSource {
SourceFile(TreeArc<ast::SourceFile>),
Module(TreeArc<ast::Module>),
}
#[derive(Clone, Debug, Hash, PartialEq, Eq)]
pub enum Problem {
UnresolvedModule {
candidate: RelativePathBuf,
},
NotDirOwner {
move_to: RelativePathBuf,
candidate: RelativePathBuf,
},
}
impl Module {
/// Name of this module.
pub fn name(&self, db: &impl HirDatabase) -> Option<Name> {
self.name_impl(db)
}
/// Returns a node which defines this module. That is, a file or a `mod foo {}` with items.
pub fn definition_source(&self, db: &impl HirDatabase) -> (FileId, ModuleSource) {
self.definition_source_impl(db)
}
/// Returns a node which declares this module, either a `mod foo;` or a `mod foo {}`.
/// `None` for the crate root.
pub fn declaration_source(
&self,
db: &impl HirDatabase,
) -> Option<(FileId, TreeArc<ast::Module>)> {
self.declaration_source_impl(db)
}
/// Returns the syntax of the last path segment corresponding to this import
pub fn import_source(
&self,
db: &impl HirDatabase,
import: ImportId,
) -> TreeArc<ast::PathSegment> {
self.import_source_impl(db, import)
}
/// Returns the crate this module is part of.
pub fn krate(&self, db: &impl HirDatabase) -> Option<Crate> {
self.krate_impl(db)
}
/// Topmost parent of this module. Every module has a `crate_root`, but some
/// might be missing `krate`. This can happen if a module's file is not included
/// in the module tree of any target in Cargo.toml.
pub fn crate_root(&self, db: &impl HirDatabase) -> Module {
self.crate_root_impl(db)
}
/// Finds a child module with the specified name.
pub fn child(&self, db: &impl HirDatabase, name: &Name) -> Option<Module> {
self.child_impl(db, name)
}
/// Iterates over all child modules.
pub fn children(&self, db: &impl HirDatabase) -> impl Iterator<Item = Module> {
self.children_impl(db)
}
/// Finds a parent module.
pub fn parent(&self, db: &impl HirDatabase) -> Option<Module> {
self.parent_impl(db)
}
pub fn path_to_root(&self, db: &impl HirDatabase) -> Vec<Module> {
let mut res = vec![self.clone()];
let mut curr = self.clone();
while let Some(next) = curr.parent(db) {
res.push(next.clone());
curr = next
}
res
}
/// Returns a `ModuleScope`: a set of items, visible in this module.
pub fn scope(&self, db: &impl HirDatabase) -> ModuleScope {
self.scope_impl(db)
}
pub fn resolve_path(&self, db: &impl HirDatabase, path: &Path) -> PerNs<DefId> {
self.resolve_path_impl(db, path)
}
pub fn problems(&self, db: &impl HirDatabase) -> Vec<(TreeArc<SyntaxNode>, Problem)> {
self.problems_impl(db)
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct StructField {
parent: DefId,
name: Name,
}
impl StructField {
pub fn name(&self) -> &Name {
&self.name
}
pub fn ty(&self, db: &impl HirDatabase) -> Option<Ty> {
db.type_for_field(self.parent, self.name.clone())
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Struct {
pub(crate) def_id: DefId,
}
impl Struct {
pub fn def_id(&self) -> DefId {
self.def_id
}
pub fn name(&self, db: &impl HirDatabase) -> Option<Name> {
db.struct_data(self.def_id).name.clone()
}
pub fn fields(&self, db: &impl HirDatabase) -> Vec<StructField> {
db.struct_data(self.def_id)
.variant_data
.fields()
.iter()
.map(|it| StructField {
parent: self.def_id,
name: it.name.clone(),
})
.collect()
}
pub fn source(&self, db: &impl HirDatabase) -> (HirFileId, TreeArc<ast::StructDef>) {
def_id_to_ast(db, self.def_id)
}
pub fn generics(&self, db: &impl HirDatabase) -> Arc<Generics> {
db.generics(self.def_id)
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Enum {
pub(crate) def_id: DefId,
}
impl Enum {
pub(crate) fn new(def_id: DefId) -> Self {
Enum { def_id }
}
pub fn def_id(&self) -> DefId {
self.def_id
}
pub fn name(&self, db: &impl HirDatabase) -> Option<Name> {
db.enum_data(self.def_id).name.clone()
}
pub fn variants(&self, db: &impl HirDatabase) -> Vec<(Name, EnumVariant)> {
db.enum_data(self.def_id).variants.clone()
}
pub fn source(&self, db: &impl HirDatabase) -> (HirFileId, TreeArc<ast::EnumDef>) {
def_id_to_ast(db, self.def_id)
}
pub fn generics(&self, db: &impl HirDatabase) -> Arc<Generics> {
db.generics(self.def_id)
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct EnumVariant {
pub(crate) def_id: DefId,
}
impl EnumVariant {
pub(crate) fn new(def_id: DefId) -> Self {
EnumVariant { def_id }
}
pub fn def_id(&self) -> DefId {
self.def_id
}
pub fn parent_enum(&self, db: &impl HirDatabase) -> Enum {
db.enum_variant_data(self.def_id).parent_enum.clone()
}
pub fn name(&self, db: &impl HirDatabase) -> Option<Name> {
db.enum_variant_data(self.def_id).name.clone()
}
pub fn variant_data(&self, db: &impl HirDatabase) -> Arc<VariantData> {
db.enum_variant_data(self.def_id).variant_data.clone()
}
pub fn fields(&self, db: &impl HirDatabase) -> Vec<StructField> {
self.variant_data(db)
.fields()
.iter()
.map(|it| StructField {
parent: self.def_id,
name: it.name.clone(),
})
.collect()
}
pub fn source(&self, db: &impl HirDatabase) -> (HirFileId, TreeArc<ast::EnumVariant>) {
def_id_to_ast(db, self.def_id)
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Function {
pub(crate) def_id: DefId,
}
pub use crate::code_model_impl::function::ScopeEntryWithSyntax;
/// The declared signature of a function.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct FnSignature {
pub(crate) name: Name,
pub(crate) params: Vec<TypeRef>,
pub(crate) ret_type: TypeRef,
/// True if the first param is `self`. This is relevant to decide whether this
/// can be called as a method.
pub(crate) has_self_param: bool,
}
impl FnSignature {
pub fn name(&self) -> &Name {
&self.name
}
pub fn params(&self) -> &[TypeRef] {
&self.params
}
pub fn ret_type(&self) -> &TypeRef {
&self.ret_type
}
/// True if the first arg is `self`. This is relevant to decide whether this
/// can be called as a method.
pub fn has_self_param(&self) -> bool {
self.has_self_param
}
}
impl Function {
pub fn def_id(&self) -> DefId {
self.def_id
}
pub fn source(&self, db: &impl HirDatabase) -> (HirFileId, TreeArc<ast::FnDef>) {
def_id_to_ast(db, self.def_id)
}
pub fn body_syntax_mapping(&self, db: &impl HirDatabase) -> Arc<BodySyntaxMapping> {
db.body_syntax_mapping(self.def_id)
}
pub fn scopes(&self, db: &impl HirDatabase) -> ScopesWithSyntaxMapping {
let scopes = db.fn_scopes(self.def_id);
let syntax_mapping = db.body_syntax_mapping(self.def_id);
ScopesWithSyntaxMapping {
scopes,
syntax_mapping,
}
}
pub fn signature(&self, db: &impl HirDatabase) -> Arc<FnSignature> {
db.fn_signature(self.def_id)
}
pub fn infer(&self, db: &impl HirDatabase) -> Arc<InferenceResult> {
db.infer(self.def_id)
}
pub fn generics(&self, db: &impl HirDatabase) -> Arc<Generics> {
db.generics(self.def_id)
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Const {
pub(crate) def_id: DefId,
}
impl Const {
pub(crate) fn new(def_id: DefId) -> Const {
Const { def_id }
}
pub fn source(&self, db: &impl HirDatabase) -> (HirFileId, TreeArc<ast::ConstDef>) {
def_id_to_ast(db, self.def_id)
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Static {
pub(crate) def_id: DefId,
}
impl Static {
pub(crate) fn new(def_id: DefId) -> Static {
Static { def_id }
}
pub fn source(&self, db: &impl HirDatabase) -> (HirFileId, TreeArc<ast::StaticDef>) {
def_id_to_ast(db, self.def_id)
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Trait {
pub(crate) def_id: DefId,
}
impl Trait {
pub(crate) fn new(def_id: DefId) -> Trait {
Trait { def_id }
}
pub fn source(&self, db: &impl HirDatabase) -> (HirFileId, TreeArc<ast::TraitDef>) {
def_id_to_ast(db, self.def_id)
}
pub fn generics(&self, db: &impl HirDatabase) -> Arc<Generics> {
db.generics(self.def_id)
}
}
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Type {
pub(crate) def_id: DefId,
}
impl Type {
pub(crate) fn new(def_id: DefId) -> Type {
Type { def_id }
}
pub fn source(&self, db: &impl HirDatabase) -> (HirFileId, TreeArc<ast::TypeDef>) {
def_id_to_ast(db, self.def_id)
}
pub fn generics(&self, db: &impl HirDatabase) -> Arc<Generics> {
db.generics(self.def_id)
}
}
|