From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Johnson <johnson.peter@gmail.com>
Date: Fri, 3 Apr 2026 23:07:20 -0700
Subject: [PATCH 21/25] Add array constructor

---
 json.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/json.h b/json.h
index 6a52615ab3e1799ebcf51a3b5ca445b1e2e64b97..ef3ea13b7cb147f0b383ff1ead496d495cfece32 100644
--- a/json.h
+++ b/json.h
@@ -17,6 +17,8 @@
 
 #pragma once
 
+#include <concepts>
+#include <ranges>
 #include <string>
 #include <string_view>
 #include <tuple>
@@ -56,6 +58,19 @@ concept HasJsonDeserializer = requires (json& j, const json& cj, const T& val) {
     { json_serializer<typename std::remove_cvref_t<T>>::from(cj) } -> std::convertible_to<typename std::remove_cvref_t<T>>;
 };
 
+template <typename T>
+concept JsonConvertible =
+    HasToJson<T> ||
+    HasJsonSerializer<T> ||
+    std::is_same_v<T, std::nullptr_t> ||
+    std::is_same_v<T, bool> ||
+    std::is_floating_point_v<T> ||
+    std::is_integral_v<T> ||
+    std::convertible_to<T, std::string> ||
+    std::convertible_to<T, std::string_view> ||
+    std::is_same_v<T, std::vector<json>> ||
+    std::is_same_v<T, wpi::util::StringMap<json>>;
+
 template <typename F, typename Tuple, size_t... I>
 void apply_pairs_helper(F&& f, Tuple&& t, std::index_sequence<I...>) {
     // This fold expression creates a sequence of calls to f for each pair
@@ -190,6 +205,12 @@ class json
     {
     }
 
+    template <std::ranges::input_range R>
+      requires detail::JsonConvertible<std::ranges::range_value_t<R>>
+    json(const R& range) : type_(Type::Array), array_value(std::ranges::cbegin(range), std::ranges::cend(range))
+    {
+    }
+
     template <detail::HasToJson T>
     json(const T& value) : type_(Type::Null)
     {