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Merge item tree traits

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The Source trait isn't needed anymore since we no longer merge
extern crate items with use items.
This commit is contained in:
Jonas Schievink 2020-06-23 18:46:08 +02:00
parent b5fd02d93c
commit f9a1a9cd3c
3 changed files with 16 additions and 21 deletions
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4
crates/ra_hir_def/src/body/lower.rs
View file

@ -27,7 +27,7 @@ use crate::{
LogicOp, MatchArm, Ordering, Pat, PatId, RecordFieldPat, RecordLitField, Statement,
},
item_scope::BuiltinShadowMode,
item_tree::{FileItemTreeId, ItemTree, ItemTreeSource},
item_tree::{FileItemTreeId, ItemTree, ItemTreeNode},
path::{GenericArgs, Path},
type_ref::{Mutability, Rawness, TypeRef},
AdtId, ConstLoc, ContainerId, DefWithBodyId, EnumLoc, FunctionLoc, Intern, ModuleDefId,
@ -557,7 +557,7 @@ impl ExprCollector<'_> {
}
}
fn find_inner_item<S: ItemTreeSource>(&self, id: AstId<ast::ModuleItem>) -> FileItemTreeId<S> {
fn find_inner_item<S: ItemTreeNode>(&self, id: AstId<ast::ModuleItem>) -> FileItemTreeId<S> {
let index =
self.item_trees.iter().position(|(file, _)| *file == id.file_id).unwrap_or_else(|| {
panic!("couldn't find item tree for file {:?}", id.file_id);

27
crates/ra_hir_def/src/item_tree.rs
View file

@ -153,7 +153,7 @@ impl ItemTree {
self.inner_items.values().flatten().copied()
}
pub fn source<S: ItemTreeSource>(
pub fn source<S: ItemTreeNode>(
&self,
db: &dyn DefDatabase,
of: FileItemTreeId<S>,
@ -173,6 +173,10 @@ impl ItemTree {
/// Trait implemented by all nodes in the item tree.
pub trait ItemTreeNode: Clone {
type Source: AstNode + Into<ast::ModuleItem>;
fn ast_id(&self) -> FileAstId<Self::Source>;
/// Looks up an instance of `Self` in an item tree.
fn lookup(tree: &ItemTree, index: Idx<Self>) -> &Self;
@ -183,13 +187,6 @@ pub trait ItemTreeNode: Clone {
fn id_to_mod_item(id: FileItemTreeId<Self>) -> ModItem;
}
/// Trait for item tree nodes that allow accessing the original AST node.
pub trait ItemTreeSource: ItemTreeNode {
type Source: AstNode + Into<ast::ModuleItem>;
fn ast_id(&self) -> FileAstId<Self::Source>;
}
pub struct FileItemTreeId<N: ItemTreeNode> {
index: Idx<N>,
_p: PhantomData<N>,
@ -242,6 +239,12 @@ macro_rules! mod_items {
$(
impl ItemTreeNode for $typ {
type Source = $ast;
fn ast_id(&self) -> FileAstId<Self::Source> {
self.ast_id
}
fn lookup(tree: &ItemTree, index: Idx<Self>) -> &Self {
&tree.$fld[index]
}
@ -259,14 +262,6 @@ macro_rules! mod_items {
}
}
impl ItemTreeSource for $typ {
type Source = $ast;
fn ast_id(&self) -> FileAstId<Self::Source> {
self.ast_id
}
}
impl Index<Idx<$typ>> for ItemTree {
type Output = $typ;

6
crates/ra_hir_def/src/src.rs
View file

@ -3,14 +3,14 @@
use hir_expand::InFile;
use ra_arena::map::ArenaMap;
use crate::{db::DefDatabase, item_tree::ItemTreeSource, AssocItemLoc, ItemLoc};
use crate::{db::DefDatabase, item_tree::ItemTreeNode, AssocItemLoc, ItemLoc};
pub trait HasSource {
type Value;
fn source(&self, db: &dyn DefDatabase) -> InFile<Self::Value>;
}
impl<N: ItemTreeSource> HasSource for AssocItemLoc<N> {
impl<N: ItemTreeNode> HasSource for AssocItemLoc<N> {
type Value = N::Source;
fn source(&self, db: &dyn DefDatabase) -> InFile<N::Source> {
@ -23,7 +23,7 @@ impl<N: ItemTreeSource> HasSource for AssocItemLoc<N> {
}
}
impl<N: ItemTreeSource> HasSource for ItemLoc<N> {
impl<N: ItemTreeNode> HasSource for ItemLoc<N> {
type Value = N::Source;
fn source(&self, db: &dyn DefDatabase) -> InFile<N::Source> {