From cde3857897955558ed0e60cf8158e18d5c75d188 Mon Sep 17 00:00:00 2001
From: Florian Diebold <flodiebold@gmail.com>
Date: Sun, 4 Apr 2021 13:23:22 +0200
Subject: [PATCH] Add comment
---
crates/hir_ty/src/builder.rs | 3 +++
1 file changed, 3 insertions(+)
diff --git a/crates/hir_ty/src/builder.rs b/crates/hir_ty/src/builder.rs
index 4d3b4eade02..4a9a8058fcc 100644
--- a/crates/hir_ty/src/builder.rs
+++ b/crates/hir_ty/src/builder.rs
@@ -16,7 +16,10 @@ use crate::{
TyDefId, TyKind, TypeWalk, ValueTyDefId,
};
+/// This is a builder for `Ty` or anything that needs a `Substitution`.
pub struct TyBuilder<D> {
+ /// The `data` field is used to keep track of what we're building (e.g. an
+ /// ADT, a `TraitRef`, ...).
data: D,
vec: SmallVec<[GenericArg; 2]>,
param_count: usize,