Refactor count-handwritten-decoders to make it easier to add exclusio…

…ns (and add a few more exclusions)

https://bugs.webkit.org/show_bug.cgi?id=265428
rdar://118865137

Reviewed by Alex Christensen.

When adding some more exclusions, I got tired of the thrown together way of adding exclusions.
So I made it easier to add exclusions.

Also rename to count-handwritten-decoders-cocoa to represent the target platforms.

* Tools/Scripts/count-handwritten-decoders:

Canonical link: https://commits.webkit.org/271237@main

Tools/Scripts/count-handwritten-cocoa-decoders

@@ -0,0 +1,46 @@
+#!/bin/sh
+#
+# This script scans Source for certain types of handwritten serialization logic and provides a count
+#
+
+cd "$(dirname "$0")/../../Source/"
+
+exclusions_array=(
+"Scripts/webkit/tests"
+"generate-serializers.py"
+"WTF/wtf/ArgumentCoder.h"
+"JavaScriptCore/runtime/CachedTypes.cpp"
+"gtk"
+"glib"
+"IPC/win"
+"IPC/unix"
+"IPC/DaemonCoders.cpp"
+"win/WebCoreArgumentCodersWin.cpp"
+"Cocoa/ArgumentCodersCocoa.h"
+"Cocoa/CoreIPCNSCFObject.h"
+"WebCore/platform/graphics/gbm"
+);
+
+exclusions_string="";
+
+for ((i = 0; i < ${#exclusions_array[@]}; i++))
+do
+    exclusions_string+="grep -vi ";
+    exclusions_string+=${exclusions_array[$i]};
+    exclusions_string+=" | ";
+done
+
+exclusions_and_count_string="$exclusions_string wc -l | xargs";
+
+optionalsString="grep -riE \"> decode\((Decoder|IPC::Decoder)\" . | $exclusions_and_count_string";
+boolsString="grep -riE \"bool decode\((Decoder|IPC::Decoder)\" . | $exclusions_and_count_string";
+
+enumtraits=$(grep -ri "struct EnumTraits<" | wc -l | xargs);
+optionals=$(eval "$optionalsString");
+bools=$(eval "$boolsString");
+
+echo "EnumTraits remaining: $enumtraits"
+echo "Decoders that return std::optional<>: $optionals"
+echo "Legacy decoders that return bool: $bools"
+sum=$(($optionals+$bools))
+echo "Total decoders remaining: $sum"