ILSpy

.NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!

c-sharp dotnet mono decompile decompiler decompiler-engine dotnetcore ilspy pdb unity

Siegfried Pammer ffb39611b8 Reimplement cross-platform single-instance handling The Avalonia port dropped ILSpy's single-instance feature, leaving three inert surfaces behind: the --newinstance / --noactivate switches, and the "Allow multiple instances" option were parsed and persisted but never read, and every launch started a new process. The former WPF implementation also encoded the executable location in the mutex name, so two ILSpy builds at different paths never shared an instance. That broke the Windows "Open with ILSpy" shell command: it launches a fixed executable and would not reuse a running instance started from elsewhere. Reimplement it with portable primitives (named Mutex + named pipes, no P/Invoke): the first launch for a user takes the mutex and listens; a later launch forwards its arguments over the pipe and exits. The namespace is derived from machine + user only -- never the location -- so any launcher reuses the running instance. --instanceid is a runtime reuse filter matched against the running instance's actual executable identity (via Environment.ProcessPath, single-file-bundle safe), not part of the mutex name, so it never re-introduces the location partitioning it replaces. The VS add-in passes its bundled exe path as --instanceid to prefer its own build while still sharing with a plain launch of that same executable. Assisted-by: Claude:claude-opus-4-8:Claude Code		2 months ago
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ClearAssemblyListCommandTests.cs	Move ILSpy UI code back to the ICSharpCode.ILSpy root namespace	3 months ago
CommandLineArgumentsTests.cs	Skip missing session assemblies when navigating on launch	3 months ago
GeneratePdbCommandTests.cs	Move ILSpy UI code back to the ICSharpCode.ILSpy root namespace	3 months ago
HelpCommandTests.cs	Move ILSpy UI code back to the ICSharpCode.ILSpy root namespace	3 months ago
SaveCodeFallbackTests.cs	Move ILSpy UI code back to the ICSharpCode.ILSpy root namespace	3 months ago
SaveCodeProjectExportTests.cs	Export what loaded, and let the user name the solution	2 months ago
SaveCommandEnablementTests.cs	Move ILSpy UI code back to the ICSharpCode.ILSpy root namespace	3 months ago
SingleInstanceTests.cs	Reimplement cross-platform single-instance handling	2 months ago
SuggestedFileNameTests.cs	Move ILSpy UI code back to the ICSharpCode.ILSpy root namespace	3 months ago