From c60d05b6e7e29394dff8f72b15a8e7a78f43a017 Mon Sep 17 00:00:00 2001
From: Kevin Nakamura <grinkers@grinkers.net>
Date: Thu, 2 May 2024 03:08:26 +0900
Subject: [PATCH] `to` collections return reference instead of move data out of
 `Edn`.

---
 src/edn/mod.rs  | 16 ++++++++--------
 src/json/mod.rs |  8 ++++----
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/src/edn/mod.rs b/src/edn/mod.rs
index 2fa6be6..62cd6de 100644
--- a/src/edn/mod.rs
+++ b/src/edn/mod.rs
@@ -102,8 +102,8 @@ impl Vector {
     }
 
     #[must_use]
-    pub fn to_vec(self) -> Vec<Edn> {
-        self.0
+    pub const fn to_vec(&self) -> &Vec<Edn> {
+        &self.0
     }
 }
 
@@ -122,8 +122,8 @@ impl List {
     }
 
     #[must_use]
-    pub fn to_vec(self) -> Vec<Edn> {
-        self.0
+    pub const fn to_vec(&self) -> &Vec<Edn> {
+        &self.0
     }
 }
 
@@ -144,8 +144,8 @@ impl Set {
     }
 
     #[must_use]
-    pub fn to_set(self) -> BTreeSet<Edn> {
-        self.0
+    pub const fn to_set(&self) -> &BTreeSet<Edn> {
+        &self.0
     }
 }
 
@@ -164,8 +164,8 @@ impl Map {
     }
 
     #[must_use]
-    pub fn to_map(self) -> BTreeMap<String, Edn> {
-        self.0
+    pub const fn to_map(&self) -> &BTreeMap<String, Edn> {
+        &self.0
     }
 }
 
diff --git a/src/json/mod.rs b/src/json/mod.rs
index 288984b..8c7ce33 100644
--- a/src/json/mod.rs
+++ b/src/json/mod.rs
@@ -10,11 +10,11 @@ use crate::edn::{rational_to_double, Edn};
 #[allow(clippy::module_name_repetitions)]
 pub fn display_as_json(edn: &Edn) -> String {
     match edn {
-        Edn::Vector(v) => vec_to_json(&v.clone().to_vec()),
+        Edn::Vector(v) => vec_to_json(v.to_vec()),
         #[cfg(feature = "sets")]
-        Edn::Set(s) => set_to_json_vec(&s.clone().to_set()),
-        Edn::Map(map) => map_to_json(&map.clone().to_map()),
-        Edn::List(l) => vec_to_json(&l.clone().to_vec()),
+        Edn::Set(s) => set_to_json_vec(s.to_set()),
+        Edn::Map(map) => map_to_json(map.to_map()),
+        Edn::List(l) => vec_to_json(l.to_vec()),
         Edn::Key(key) => format!("{:?}", kebab_to_camel(key)),
         Edn::Symbol(s) | Edn::Str(s) => format!("{s:?}"),
         Edn::Int(n) => format!("{n}"),