Unnamed repository; edit this file 'description' to name the repository.
Don't store SyntheticSyntax in the reverse maps in BodySourceMap
They are ZSTs which we can just create on missing access instead.
Lukas Wirth 2022-09-02
parent c6b7f45 · commit fe0a106
-rw-r--r--crates/hir-def/src/body.rs8
-rw-r--r--crates/hir-def/src/body/lower.rs14
2 files changed, 11 insertions, 11 deletions
diff --git a/crates/hir-def/src/body.rs b/crates/hir-def/src/body.rs
index 1d818d9626..d572d46e8b 100644
--- a/crates/hir-def/src/body.rs
+++ b/crates/hir-def/src/body.rs
@@ -264,10 +264,10 @@ pub type LabelSource = InFile<LabelPtr>;
#[derive(Default, Debug, Eq, PartialEq)]
pub struct BodySourceMap {
expr_map: FxHashMap<ExprSource, ExprId>,
- expr_map_back: ArenaMap<ExprId, Result<ExprSource, SyntheticSyntax>>,
+ expr_map_back: ArenaMap<ExprId, ExprSource>,
pat_map: FxHashMap<PatSource, PatId>,
- pat_map_back: ArenaMap<PatId, Result<PatSource, SyntheticSyntax>>,
+ pat_map_back: ArenaMap<PatId, PatSource>,
label_map: FxHashMap<LabelSource, LabelId>,
label_map_back: ArenaMap<LabelId, LabelSource>,
@@ -420,7 +420,7 @@ impl Index<LabelId> for Body {
// Perhaps `expr_syntax` and `expr_id`?
impl BodySourceMap {
pub fn expr_syntax(&self, expr: ExprId) -> Result<ExprSource, SyntheticSyntax> {
- self.expr_map_back[expr].clone()
+ self.expr_map_back.get(expr).cloned().ok_or(SyntheticSyntax)
}
pub fn node_expr(&self, node: InFile<&ast::Expr>) -> Option<ExprId> {
@@ -434,7 +434,7 @@ impl BodySourceMap {
}
pub fn pat_syntax(&self, pat: PatId) -> Result<PatSource, SyntheticSyntax> {
- self.pat_map_back[pat].clone()
+ self.pat_map_back.get(pat).cloned().ok_or(SyntheticSyntax)
}
pub fn node_pat(&self, node: InFile<&ast::Pat>) -> Option<PatId> {
diff --git a/crates/hir-def/src/body/lower.rs b/crates/hir-def/src/body/lower.rs
index 8ebac5cb1c..df536e09fd 100644
--- a/crates/hir-def/src/body/lower.rs
+++ b/crates/hir-def/src/body/lower.rs
@@ -24,7 +24,7 @@ use syntax::{
use crate::{
adt::StructKind,
- body::{Body, BodySourceMap, Expander, LabelSource, PatPtr, SyntheticSyntax},
+ body::{Body, BodySourceMap, Expander, LabelSource, PatPtr},
body::{BodyDiagnostic, ExprSource, PatSource},
builtin_type::{BuiltinFloat, BuiltinInt, BuiltinUint},
db::DefDatabase,
@@ -152,19 +152,19 @@ impl ExprCollector<'_> {
fn alloc_expr(&mut self, expr: Expr, ptr: AstPtr<ast::Expr>) -> ExprId {
let src = self.expander.to_source(ptr);
- let id = self.make_expr(expr, Ok(src.clone()));
+ let id = self.make_expr(expr, src.clone());
self.source_map.expr_map.insert(src, id);
id
}
// desugared exprs don't have ptr, that's wrong and should be fixed
// somehow.
fn alloc_expr_desugared(&mut self, expr: Expr) -> ExprId {
- self.make_expr(expr, Err(SyntheticSyntax))
+ self.body.exprs.alloc(expr)
}
fn missing_expr(&mut self) -> ExprId {
self.alloc_expr_desugared(Expr::Missing)
}
- fn make_expr(&mut self, expr: Expr, src: Result<ExprSource, SyntheticSyntax>) -> ExprId {
+ fn make_expr(&mut self, expr: Expr, src: ExprSource) -> ExprId {
let id = self.body.exprs.alloc(expr);
self.source_map.expr_map_back.insert(id, src);
id
@@ -172,14 +172,14 @@ impl ExprCollector<'_> {
fn alloc_pat(&mut self, pat: Pat, ptr: PatPtr) -> PatId {
let src = self.expander.to_source(ptr);
- let id = self.make_pat(pat, Ok(src.clone()));
+ let id = self.make_pat(pat, src.clone());
self.source_map.pat_map.insert(src, id);
id
}
fn missing_pat(&mut self) -> PatId {
- self.make_pat(Pat::Missing, Err(SyntheticSyntax))
+ self.body.pats.alloc(Pat::Missing)
}
- fn make_pat(&mut self, pat: Pat, src: Result<PatSource, SyntheticSyntax>) -> PatId {
+ fn make_pat(&mut self, pat: Pat, src: PatSource) -> PatId {
let id = self.body.pats.alloc(pat);
self.source_map.pat_map_back.insert(id, src);
id