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GenAPI does not correctly handle System.Runtime

See original GitHub issue

Steps to Reproduce utilizing https://github.com/dotnet/source-build-reference-packages/blob/main/generate.sh

./generate -x -p System.Runtime,4.3.1 (also get the same results with 4.1.0 and 4.3.0)
./build -sb

Issues with generated code:

const readonly - Generated code has const readonly which is not valid and causes compilation errors.

    public partial struct Decimal : IComparable, IComparable<Decimal>, IConvertible, IEquatable<Decimal>, IFormattable
    {
        public const readonly Decimal MaxValue = MaxValue;
        public const readonly Decimal MinusOne = -1M;
        public const readonly Decimal MinValue = MinValue;
        public const readonly Decimal One = 1M;
        public const readonly Decimal Zero = 0M;

  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1065,22): error CS1001: Identifier expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1065,22): error CS0145: A const field requires a value to be provided [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1065,22): error CS1002: ; expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1066,22): error CS1031: Type expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1066,22): error CS1001: Identifier expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1066,22): error CS0145: A const field requires a value to be provided [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1066,22): error CS1002: ; expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1067,22): error CS1031: Type expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1067,22): error CS1001: Identifier expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1067,22): error CS0145: A const field requires a value to be provided [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1067,22): error CS1002: ; expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1068,22): error CS1031: Type expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1068,22): error CS1001: Identifier expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1068,22): error CS0145: A const field requires a value to be provided [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.3/System.Runtime.cs(1068,22): error CS1002: ; expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.3] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]
  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.5/System.Runtime.cs(1071,22): error CS1002: ; expected [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.5] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]

Workaround: Replace const readonly with const

Missing attribute types - See https://github.com/dotnet/sdk/issues/33388

Workaround: Manually add missing attribute types.

Circular Reference: primitive type constants have circular references.

    public partial struct UInt32 : IComparable, IComparable<UInt32>, IEquatable<UInt32>, IFormattable
    {
        public const UInt32 MaxValue = MaxValue;

  /repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/ref/netstandard1.0/System.Runtime.cs(2775,29): error CS0110: The evaluation of the constant value for 'uint.MaxValue' involves a circular definition [/repos/source-build-reference-packages/artifacts/source-build/self/src/src/referencePackages/src/system.runtime/4.3.1/System.Runtime.4.3.1.csproj::TargetFramework=netstandard1.0] [/root/.nuget/packages/microsoft.dotnet.arcade.sdk/8.0.0-beta.23371.1/tools/Build.proj]

Workaround: Manually update code to use numeric values.

Issue Analytics

State:
Created 2 months ago
Comments:6 (6 by maintainers)

Top GitHub Comments

1reaction

ericstjcommented, Aug 4, 2023

Roslyn change merged - that should fix the two unique issues reported here. Plan to resolve this once we can pick up a new roslyn build. Leave the linked issue open to track attribute handling.

1reaction

ericstjcommented, Aug 4, 2023

Both 1 and 3 are roslyn issues.

1 is due to decimal constants being represented differently in metadata. They are a readonly field with an attribute that provides the value. As a result it causes this issue: https://github.com/dotnet/roslyn/issues/69376 I haven’t yet found a good workaround for this - but it should be possible.

3 is due to a bug in how SyntaxGenerator emits literal values. It tries to map to some well known constants, but doesn’t account for that fact it might be defining those constants. https://github.com/dotnet/roslyn/issues/69380 For this I have a workaround.

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