From 752f06a38f5fe645b42d7cb9ccfe8b6202585696 Mon Sep 17 00:00:00 2001
From: Krzysztof Jakubowski <krzysztof@shapespark.com>
Date: Wed, 7 Aug 2024 16:18:42 +0200
Subject: [PATCH] Fixup: Removed redundant vectors, simplified matching convert
 patterns

---
 source/MaterialXCore/Version.cpp | 20 +++++---------------
 1 file changed, 5 insertions(+), 15 deletions(-)

diff --git a/source/MaterialXCore/Version.cpp b/source/MaterialXCore/Version.cpp
index c02d8fe7bc..671cbcb564 100644
--- a/source/MaterialXCore/Version.cpp
+++ b/source/MaterialXCore/Version.cpp
@@ -992,26 +992,14 @@ void Document::upgradeVersion()
             { "color3", 3 }, { "color4", 4 },
             { "vector2", 2 }, { "vector3", 3 }, { "vector4", 4 }
         };
-        const vector<std::pair<std::string, size_t>> CHANNEL_CONVERT_PATTERNS =
+        const std::pair<std::string, size_t> CHANNEL_CONVERT_PATTERNS[] =
         {
             { "rgb", 3 }, { "rgb", 4 }, { "rgba", 4 },
             { "xyz", 3 }, { "xyz", 4 }, { "xyzw", 4 },
             { "rr", 1 }, { "rrr", 1 },
             { "xx", 1 }, { "xxx", 1 }
         };
-        auto matchesConvertPattern = [&](const string& channels, size_t sourceChannelCount)
-        {
-            for (auto& pattern : CHANNEL_CONVERT_PATTERNS)
-            {
-                if (pattern == std::make_pair(channels, sourceChannelCount))
-                {
-                    return true;
-                }
-            }
-            return false;
-        };
-
-        const vector<std::pair<StringSet, string>> CHANNEL_ATTRIBUTE_PATTERNS =
+        const std::pair<StringSet, string> CHANNEL_ATTRIBUTE_PATTERNS[] =
         {
             { { "xx", "xxx", "xxxx" }, "float" },
             { { "xyz", "x", "y", "z" }, "vector3" },
@@ -1245,7 +1233,9 @@ void Document::upgradeVersion()
                             node->setInputValue("index", (int) CHANNEL_INDEX_MAP.at(channelString[0]));
                         }
                     }
-                    else if (sourceType != destType && matchesConvertPattern(channelString, sourceChannelCount))
+                    else if (sourceType != destType &&
+                             std::find(std::begin(CHANNEL_CONVERT_PATTERNS), std::end(CHANNEL_CONVERT_PATTERNS),
+                                       std::make_pair(channelString, sourceChannelCount)) != std::end(CHANNEL_CONVERT_PATTERNS))
                     {
                         // Replace swizzle with convert.
                         node->setCategory("convert");