Address various minor param-nullchecking issues#58321
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RikkiGibson merged 5 commits intodotnet:features/param-nullcheckingfrom Dec 15, 2021
Merged
Address various minor param-nullchecking issues#58321RikkiGibson merged 5 commits intodotnet:features/param-nullcheckingfrom
RikkiGibson merged 5 commits intodotnet:features/param-nullcheckingfrom
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jaredpar
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Dec 14, 2021
| IL_0002: newobj ""C.<GetChars>d__0..ctor(int)"" | ||
| IL_0007: ldarg.1 | ||
| IL_0008: ldstr ""s"" | ||
| IL_000d: call ""ThrowIfNull"" |
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I was a bit surprised to see us create the state machine then do the null check. Given that we do the null check before calling base / this ctor would've expected the null check first here.
Not blocking if everyone else feels that way, can deal with it in a follow up.
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A few test plan items are marked "address after merge". I think it would be fine to add a similar item to the test plan #36024 to see if we can improve this.
Youssef1313
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Dec 14, 2021
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| [Fact] | ||
| public void Override_NullCheckedDifference() | ||
| { | ||
| var source = | ||
| @" | ||
| class Base | ||
| { | ||
| public virtual void M1(string x!!) { } | ||
| public virtual void M2(string x) { } | ||
| } | ||
|
|
||
| class Derived : Base | ||
| { | ||
| public override void M1(string x) { } | ||
| public override void M2(string x!!) { } | ||
| }"; | ||
| var verifier = CompileAndVerify(source); | ||
| verifier.VerifyDiagnostics(); |
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Not sure if it does make sense to also run this test with NRT enabled and still ensure no nullable-related warnings are produced?
cston
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Dec 14, 2021
src/Compilers/CSharp/Test/Semantic/Semantics/NullCheckedParameterTests.cs
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cston
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src/Compilers/CSharp/Test/Semantic/Semantics/NullCheckedParameterTests.cs
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cston
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| int slot = GetOrCreateSlot(parameter); | ||
| var parameterType = GetDeclaredParameterResult(parameter); | ||
| var typeWithState = GetParameterState(parameterType, parameter.FlowAnalysisAnnotations); | ||
| var typeWithState = GetParameterState(parameterType, parameter.FlowAnalysisAnnotations, parameter.IsNullChecked); |
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Oop, I might not have addressed this. Looking.
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I think there's not an obvious scenario where we can observe a behavior difference so I'm not going to add specific tests for it at this time.
cston
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Dec 14, 2021
src/Compilers/CSharp/Test/Emit2/CodeGen/CodeGenNullCheckedParameterTests.cs
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cston
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333fred
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Dec 16, 2021
…rations * upstream/main: (87 commits) Add support for nullable analysis in interpolated string handler constructors (dotnet#57780) Record list-patterns and newlines in interpolations as done (dotnet#58250) Swithc to acquiring the component model on a BG thread. Fix failure to propagate cancellation token [main] Update dependencies from dotnet/arcade (dotnet#58327) Change PROTOTYPE to issue reference (dotnet#58336) Resolve PROTOTYPE comments in param null checking (dotnet#58324) Address various minor param-nullchecking issues (dotnet#58321) Nullable enable GetTypeByMetadataName (dotnet#58317) Support CodeClass2.Parts returning parts in source generated files Allow the FileCodeModel.Parent to be null Ensure the CodeModel tests are using VisualStudioWorkspaceImpl Fix the bad words in TestDeepAlternation Fix regression in Equals/GetHashCode of LambdaSymbol. (dotnet#58247) Support "Enable nullable reference types" from disable keyword Support "Enable nullable reference types" from restore keyword Support "Enable nullable reference types" on the entire directive Add comment Remove descriptor Update src/Workspaces/Remote/ServiceHub/Services/SemanticClassification/RemoteSemanticClassificationService.cs ...
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string? s!!a warning just asint? x!!is a warning. notes!!. Test plan for "Parameter null-checking" #36024 (comment)