mirror of
https://github.com/icsharpcode/ILSpy.git
synced 2026-10-12 02:15:58 +00:00
Siegfried Pammer
7572b57eee
Loading a field's address was counted as both a read and a write, so a use that only reads - calling a method on a value-type field emits ldflda and writes nothing - was listed under "Assigned By". An address load says only that something needed a reference to the field. What happens through that reference is up to the consumer, and the IL scan here does not look at it, so the load is neither a read nor a write and gets a category of its own. Special-casing the methods known not to mutate their receiver would answer this one screenshot and leave every ref argument still guessing. Assisted-by: Claude:claude-opus-5:Claude Code
73 lines
2.3 KiB
C#
73 lines
2.3 KiB
C#
// Copyright (c) 2026 AlphaSierraPapa for the SharpDevelop Team
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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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namespace ICSharpCode.ILSpy.Tests.Analyzers.Library.TestCases.Main
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{
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// Fixture for the analyzer-library tests. Methods are picked up by metadata-token
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// lookup from the test assembly itself, so each one's IL must reach the operation
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// the analyser is meant to find — that's why the bodies look trivial.
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class MainAssembly
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{
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public string UsesSystemStringEmpty()
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{
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return string.Empty;
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}
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public int UsesInt32()
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{
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return int.Parse("1234");
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}
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}
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// Fixture for the field-access analysers. A field of a value type reached through a
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// method call is loaded by address (ldflda/ldsflda), which says nothing about whether
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// the call writes to it - issue #2372.
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class FieldAccess
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{
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public bool instanceFlag;
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public static bool staticFlag;
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public string ReadsInstanceFlagByAddress()
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{
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// callvirt Boolean::ToString(ldflda instanceFlag)
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return instanceFlag.ToString();
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}
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public static string ReadsStaticFlagByAddress()
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{
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// call Boolean::ToString(ldsflda staticFlag)
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return staticFlag.ToString();
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}
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public bool ReadsInstanceFlag()
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{
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return instanceFlag;
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}
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public void WritesInstanceFlag()
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{
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instanceFlag = true;
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}
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public static void WritesStaticFlag()
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{
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staticFlag = true;
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}
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}
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}
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