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https://github.com/icsharpcode/ILSpy.git
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Siegfried Pammer
7a7cb44a21
Structural generator mistakes surface at compile time via DSTG002-005 and partial-member matching, and emission regressions light up the fixture suite - except one: dropping the reversed bucket scan in the generated GetMinimumRequiredVersion compiles green and returns the lowest enabled feature version instead of the highest, and the method's only consumer is project-export LangVersion stamping, which default CI runs barely exercise. Pin the highest-wins contract, including the syntax-preference settings that now participate in the ladder. Assisted-by: Claude:claude-fable-5:Claude Code
54 lines
2.3 KiB
C#
54 lines
2.3 KiB
C#
// Copyright (c) 2026 Siegfried Pammer
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using ICSharpCode.Decompiler.CSharp;
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using NUnit.Framework;
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namespace ICSharpCode.Decompiler.Tests
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{
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[TestFixture]
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class DecompilerSettingsTests
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{
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[Test]
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public void GetMinimumRequiredVersionReturnsTheHighestEnabledFeatureVersion()
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{
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var settings = new DecompilerSettings(LanguageVersion.CSharp1);
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Assert.That(settings.GetMinimumRequiredVersion(), Is.EqualTo(LanguageVersion.CSharp1));
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settings.AnonymousMethods = true;
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Assert.That(settings.GetMinimumRequiredVersion(), Is.EqualTo(LanguageVersion.CSharp2));
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// Syntax-preference settings participate too: enabled, they emit syntax of their version.
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settings.UseEnhancedUsing = true;
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Assert.That(settings.GetMinimumRequiredVersion(), Is.EqualTo(LanguageVersion.CSharp8_0));
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settings.SwitchOnReadOnlySpanChar = true;
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Assert.That(settings.GetMinimumRequiredVersion(), Is.EqualTo(LanguageVersion.CSharp11_0));
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// The scan must pick the highest enabled feature, not the first match bottom-up.
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settings.ParamsCollections = true;
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Assert.That(settings.GetMinimumRequiredVersion(), Is.EqualTo(LanguageVersion.CSharp13_0));
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settings.AnonymousMethods = false;
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settings.ParamsCollections = false;
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Assert.That(settings.GetMinimumRequiredVersion(), Is.EqualTo(LanguageVersion.CSharp11_0));
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}
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}
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}
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