From da5bafd7fd6c50da46ad9cf60d05eafd9ff8e7c7 Mon Sep 17 00:00:00 2001
From: Dan Barber <github@danbarber.me>
Date: Wed, 27 Mar 2019 09:06:35 -0400
Subject: [PATCH] Compiler couldn't infer type here

---
 Persephone/Services/AlbumArtService.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Persephone/Services/AlbumArtService.swift b/Persephone/Services/AlbumArtService.swift
index a3ccdd5..a7f614b 100644
--- a/Persephone/Services/AlbumArtService.swift
+++ b/Persephone/Services/AlbumArtService.swift
@@ -30,9 +30,9 @@ class AlbumArtService {
       firstly {
         self.getCachedArtwork()
       }.then { artwork -> Promise<NSImage?> in
-        artwork.map(Promise.value) ?? self.cacheIfNecessary(self.getArtworkFromFilesystem())
+        artwork.map { Promise.value($0 as NSImage?) } ?? self.cacheIfNecessary(self.getArtworkFromFilesystem())
       }.then { artwork -> Promise<NSImage?> in
-        artwork.map(Promise.value) ?? self.cacheIfNecessary(self.getArtworkFromMusicBrainz().map(Optional.some))
+        artwork.map { Promise.value($0 as NSImage?) } ?? self.cacheIfNecessary(self.getArtworkFromMusicBrainz().map(Optional.some))
       }.tap { result in
         switch result {
         case .fulfilled(nil), .rejected(MusicBrainzError.noArtworkAvailable):