2019-09-03 03:04:38 -05:00
|
|
|
use ra_syntax::{
|
|
|
|
ast::{self, AstNode},
|
|
|
|
SyntaxNode,
|
|
|
|
};
|
2019-06-11 10:00:08 -05:00
|
|
|
|
|
|
|
use crate::{
|
2019-09-03 03:04:38 -05:00
|
|
|
ids::AstItemDef, AstDatabase, Const, DefDatabase, Either, Enum, EnumVariant, FieldSource,
|
|
|
|
Function, HasBody, HirDatabase, HirFileId, MacroDef, Module, ModuleSource, Static, Struct,
|
|
|
|
StructField, Trait, TypeAlias, Union,
|
2019-06-11 10:00:08 -05:00
|
|
|
};
|
|
|
|
|
2019-09-03 03:04:38 -05:00
|
|
|
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
|
2019-06-11 10:00:08 -05:00
|
|
|
pub struct Source<T> {
|
|
|
|
pub file_id: HirFileId,
|
|
|
|
pub ast: T,
|
|
|
|
}
|
|
|
|
|
|
|
|
pub trait HasSource {
|
|
|
|
type Ast;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<Self::Ast>;
|
|
|
|
}
|
|
|
|
|
2019-09-03 03:04:38 -05:00
|
|
|
impl<T> Source<T> {
|
|
|
|
pub(crate) fn map<F: FnOnce(T) -> U, U>(self, f: F) -> Source<U> {
|
|
|
|
Source { file_id: self.file_id, ast: f(self.ast) }
|
|
|
|
}
|
|
|
|
pub(crate) fn file_syntax(&self, db: &impl AstDatabase) -> SyntaxNode {
|
|
|
|
db.parse_or_expand(self.file_id).expect("source created from invalid file")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-06-11 10:11:17 -05:00
|
|
|
/// NB: Module is !HasSource, because it has two source nodes at the same time:
|
2019-06-11 10:00:08 -05:00
|
|
|
/// definition and declaration.
|
|
|
|
impl Module {
|
|
|
|
/// Returns a node which defines this module. That is, a file or a `mod foo {}` with items.
|
|
|
|
pub fn definition_source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ModuleSource> {
|
|
|
|
let def_map = db.crate_def_map(self.krate);
|
|
|
|
let decl_id = def_map[self.module_id].declaration;
|
|
|
|
let file_id = def_map[self.module_id].definition;
|
2019-06-11 10:07:42 -05:00
|
|
|
let ast = ModuleSource::new(db, file_id, decl_id);
|
2019-06-11 10:00:08 -05:00
|
|
|
let file_id = file_id.map(HirFileId::from).unwrap_or_else(|| decl_id.unwrap().file_id());
|
2019-06-11 10:07:42 -05:00
|
|
|
Source { file_id, ast }
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
/// 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 DefDatabase + AstDatabase),
|
2019-07-19 02:43:01 -05:00
|
|
|
) -> Option<Source<ast::Module>> {
|
2019-06-11 10:00:08 -05:00
|
|
|
let def_map = db.crate_def_map(self.krate);
|
|
|
|
let decl = def_map[self.module_id].declaration?;
|
|
|
|
let ast = decl.to_node(db);
|
2019-06-11 10:07:42 -05:00
|
|
|
Some(Source { file_id: decl.file_id(), ast })
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl HasSource for StructField {
|
|
|
|
type Ast = FieldSource;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<FieldSource> {
|
2019-06-11 10:07:42 -05:00
|
|
|
self.source_impl(db)
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
impl HasSource for Struct {
|
2019-07-19 02:43:01 -05:00
|
|
|
type Ast = ast::StructDef;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::StructDef> {
|
2019-06-11 10:07:42 -05:00
|
|
|
self.id.source(db)
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
impl HasSource for Union {
|
2019-07-19 02:43:01 -05:00
|
|
|
type Ast = ast::StructDef;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::StructDef> {
|
2019-06-11 10:07:42 -05:00
|
|
|
self.id.source(db)
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
impl HasSource for Enum {
|
2019-07-19 02:43:01 -05:00
|
|
|
type Ast = ast::EnumDef;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::EnumDef> {
|
2019-06-11 10:07:42 -05:00
|
|
|
self.id.source(db)
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
impl HasSource for EnumVariant {
|
2019-07-19 02:43:01 -05:00
|
|
|
type Ast = ast::EnumVariant;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::EnumVariant> {
|
2019-06-11 10:00:08 -05:00
|
|
|
self.source_impl(db)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
impl HasSource for Function {
|
2019-07-19 02:43:01 -05:00
|
|
|
type Ast = ast::FnDef;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::FnDef> {
|
2019-06-11 10:07:42 -05:00
|
|
|
self.id.source(db)
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
impl HasSource for Const {
|
2019-07-19 02:43:01 -05:00
|
|
|
type Ast = ast::ConstDef;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::ConstDef> {
|
2019-06-11 10:07:42 -05:00
|
|
|
self.id.source(db)
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
impl HasSource for Static {
|
2019-07-19 02:43:01 -05:00
|
|
|
type Ast = ast::StaticDef;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::StaticDef> {
|
2019-06-11 10:07:42 -05:00
|
|
|
self.id.source(db)
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
impl HasSource for Trait {
|
2019-07-19 02:43:01 -05:00
|
|
|
type Ast = ast::TraitDef;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::TraitDef> {
|
2019-06-11 10:07:42 -05:00
|
|
|
self.id.source(db)
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
impl HasSource for TypeAlias {
|
2019-07-19 02:43:01 -05:00
|
|
|
type Ast = ast::TypeAliasDef;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::TypeAliasDef> {
|
2019-06-11 10:07:42 -05:00
|
|
|
self.id.source(db)
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
impl HasSource for MacroDef {
|
2019-07-19 02:43:01 -05:00
|
|
|
type Ast = ast::MacroCall;
|
|
|
|
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::MacroCall> {
|
2019-06-11 10:07:42 -05:00
|
|
|
Source { file_id: self.id.0.file_id(), ast: self.id.0.to_node(db) }
|
2019-06-11 10:00:08 -05:00
|
|
|
}
|
|
|
|
}
|
2019-08-30 13:16:28 -05:00
|
|
|
|
|
|
|
pub trait HasBodySource: HasBody + HasSource
|
|
|
|
where
|
|
|
|
Self::Ast: AstNode,
|
|
|
|
{
|
|
|
|
fn expr_source(
|
|
|
|
self,
|
|
|
|
db: &impl HirDatabase,
|
|
|
|
expr_id: crate::expr::ExprId,
|
2019-09-03 03:04:38 -05:00
|
|
|
) -> Option<Source<Either<ast::Expr, ast::RecordField>>> {
|
2019-08-30 13:16:28 -05:00
|
|
|
let source_map = self.body_source_map(db);
|
2019-09-03 03:04:38 -05:00
|
|
|
let source_ptr = source_map.expr_syntax(expr_id)?;
|
|
|
|
let root = source_ptr.file_syntax(db);
|
|
|
|
let source = source_ptr.map(|ast| ast.map(|it| it.to_node(&root), |it| it.to_node(&root)));
|
|
|
|
Some(source)
|
2019-08-30 13:16:28 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl<T> HasBodySource for T
|
|
|
|
where
|
|
|
|
T: HasBody + HasSource,
|
|
|
|
T::Ast: AstNode,
|
|
|
|
{
|
|
|
|
}
|