From bca0e348597371ced98ce9a4c071491cf56534db Mon Sep 17 00:00:00 2001
From: Vincent Ambo <tazjin@google.com>
Date: Sat, 23 May 2020 06:44:38 +0100
Subject: docs(3p/nix/libexpr): Add some comments about function calls

These were things that took me a moment to realise.
---
 third_party/nix/src/libexpr/nixexpr.hh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'third_party/nix/src/libexpr/nixexpr.hh')

diff --git a/third_party/nix/src/libexpr/nixexpr.hh b/third_party/nix/src/libexpr/nixexpr.hh
index 715dbd8d59..6d5d4f5f55 100644
--- a/third_party/nix/src/libexpr/nixexpr.hh
+++ b/third_party/nix/src/libexpr/nixexpr.hh
@@ -200,10 +200,11 @@ struct ExprList : Expr {
 
 struct Formal {
   Symbol name;
-  Expr* def;
+  Expr* def; // def = default, not definition
   Formal(const Symbol& name, Expr* def) : name(name), def(def){};
 };
 
+// Describes structured function arguments (e.g. `{ a }: ...`)
 struct Formals {
   typedef std::list<Formal> Formals_;
   Formals_ formals;
-- 
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