From 77a609758bb80bac9497d2e3988550f8be578407 Mon Sep 17 00:00:00 2001 From: Rory& Date: Mon, 23 Feb 2026 02:03:20 +0100 Subject: Initial commit --- .../JSPatches/NullCoalescingPatch.cs | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 ReferenceClientProxyImplementation/Patches/Implementations/JSPatches/NullCoalescingPatch.cs (limited to 'ReferenceClientProxyImplementation/Patches/Implementations/JSPatches/NullCoalescingPatch.cs') diff --git a/ReferenceClientProxyImplementation/Patches/Implementations/JSPatches/NullCoalescingPatch.cs b/ReferenceClientProxyImplementation/Patches/Implementations/JSPatches/NullCoalescingPatch.cs new file mode 100644 index 0000000..98156c8 --- /dev/null +++ b/ReferenceClientProxyImplementation/Patches/Implementations/JSPatches/NullCoalescingPatch.cs @@ -0,0 +1,32 @@ +using System.Text; +using System.Text.RegularExpressions; + +namespace ReferenceClientProxyImplementation.Patches.Implementations.JSPatches; + +public partial class NullCoalescingPatch : IPatch { + public int GetOrder() => 1; + + public string GetName() => "Patch null-coalescing expressions in JS"; + public bool Applies(string relativeName, byte[] content) => relativeName.EndsWith(".js"); + + public async Task Execute(string relativePath, byte[] content) { + var stringContent = Encoding.UTF8.GetString(content); + + stringContent = NullCoalescingRegex().Replace( + stringContent, + m => $"{m.Groups[1].Value}?.{m.Groups[2].Value}" + ); + // stringContent = ParenNullCheckRegex().Replace( + // stringContent, + // m => $"{m.Groups[1].Value} == null" + // ); + + return Encoding.UTF8.GetBytes(stringContent); + } + + [GeneratedRegex(@"null == ([a-zA-Z0-9_]+?) \? undefined : \1\.([a-zA-Z0-9_]+?)", RegexOptions.Compiled)] + private static partial Regex NullCoalescingRegex(); + + [GeneratedRegex(@"\(([^()]+?)\) == null", RegexOptions.Compiled)] + private static partial Regex ParenNullCheckRegex(); +} \ No newline at end of file -- cgit 1.5.1