From 08a71feef88d99e63cdb9c4c8cebb62790749ded Mon Sep 17 00:00:00 2001
From: Fredrik Ekre <ekrefredrik@gmail.com>
Date: Mon, 20 Nov 2023 12:20:36 +0100
Subject: [PATCH] NFC: Add Sample inner constructor to enforce correct
 label-pairing.

---
 src/Prometheus.jl | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/Prometheus.jl b/src/Prometheus.jl
index e6db058..98be5a8 100644
--- a/src/Prometheus.jl
+++ b/src/Prometheus.jl
@@ -811,6 +811,15 @@ struct Sample
     label_names::Union{LabelNames, Nothing}
     label_values::Union{LabelValues, Nothing}
     value::Float64
+    function Sample(
+            suffix::Union{String, Nothing},
+            label_names::Union{Nothing, LabelNames{N}},
+            label_values::Union{Nothing, LabelValues{N}},
+            value::Real,
+        ) where N
+        @assert((label_names === nothing) === (label_values === nothing))
+        return new(suffix, label_names, label_values, value)
+    end
 end
 
 struct Metric