From da92e6ad9d67e91c5facfe588cc86bfd9d607689 Mon Sep 17 00:00:00 2001
From: Tejas Sharma <tejass@zillowgroup.com>
Date: Wed, 10 Jul 2024 16:05:47 -0700
Subject: [PATCH] guard let instead of if let

---
 Sources/Yams/Parser.swift | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/Sources/Yams/Parser.swift b/Sources/Yams/Parser.swift
index 0caa4d55..48ad3fa1 100644
--- a/Sources/Yams/Parser.swift
+++ b/Sources/Yams/Parser.swift
@@ -367,12 +367,11 @@ private extension Parser {
     private func checkDuplicates(mappingKeys: [Node]) throws {
         var duplicates: [String: [Node]] = [:]
         for key in mappingKeys {
-            if let keyString = key.string {
-                if duplicates.keys.contains(keyString) {
-                    duplicates[keyString]?.append(key)
-                } else {
-                    duplicates[keyString] = [key]
-                }
+            guard let keyString = key.string else { continue }
+            if duplicates.keys.contains(keyString) {
+                duplicates[keyString]?.append(key)
+            } else {
+                duplicates[keyString] = [key]
             }
         }
         duplicates = duplicates.filter { $1.count > 1 }