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slight encapsulation

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This commit is contained in:
Aleksey Kladov 2019-04-13 11:29:47 +03:00
parent f9e825d956
commit b260641e0c
2 changed files with 13 additions and 9 deletions
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18
crates/ra_hir/src/expr/scope.rs
View File

@ -18,7 +18,7 @@ impl_arena_id!(ScopeId);
pub struct ExprScopes {
body: Arc<Body>,
scopes: Arena<ScopeId, ScopeData>,
pub(crate) scope_for: FxHashMap<ExprId, ScopeId>,
scope_by_expr: FxHashMap<ExprId, ScopeId>,
}
#[derive(Debug, PartialEq, Eq)]
@ -54,7 +54,7 @@ impl ExprScopes {
let mut scopes = ExprScopes {
body: body.clone(),
scopes: Arena::default(),
scope_for: FxHashMap::default(),
scope_by_expr: FxHashMap::default(),
};
let root = scopes.root_scope();
scopes.add_params_bindings(root, body.params());
@ -73,6 +73,14 @@ impl ExprScopes {
std::iter::successors(scope, move |&scope| self.scopes[scope].parent)
}
pub(crate) fn scope_for(&self, expr: ExprId) -> Option<ScopeId> {
self.scope_by_expr.get(&expr).map(|&scope| scope)
}
pub(crate) fn scope_by_expr(&self) -> &FxHashMap<ExprId, ScopeId> {
&self.scope_by_expr
}
fn root_scope(&mut self) -> ScopeId {
self.scopes.alloc(ScopeData { parent: None, entries: vec![] })
}
@ -99,11 +107,7 @@ impl ExprScopes {
}
fn set_scope(&mut self, node: ExprId, scope: ScopeId) {
self.scope_for.insert(node, scope);
}
pub(crate) fn scope_for(&self, expr: ExprId) -> Option<ScopeId> {
self.scope_for.get(&expr).map(|&scope| scope)
self.scope_by_expr.insert(node, scope);
}
}

4
crates/ra_hir/src/source_binder.rs
View File

@ -368,7 +368,7 @@ fn scope_for_offset(
offset: TextUnit,
) -> Option<ScopeId> {
scopes
.scope_for
.scope_by_expr()
.iter()
.filter_map(|(id, scope)| Some((source_map.expr_syntax(*id)?, scope)))
// find containing scope
@ -388,7 +388,7 @@ fn adjust(
) -> Option<ScopeId> {
let r = ptr.range();
let child_scopes = scopes
.scope_for
.scope_by_expr()
.iter()
.filter_map(|(id, scope)| Some((source_map.expr_syntax(*id)?, scope)))
.map(|(ptr, scope)| (ptr.range(), scope))