Make Options source gen support Validation attributes having constructor with params Parameter #91915
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…tor with params Parameter
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Tagging subscribers to this area: @dotnet/area-extensions-options Issue DetailsThis change is to support the validation attributes having constructor with This fix need to be ported to rc2.
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tarekgh
added
the
source-generator
| { | ||
| validationAttr.ConstructorArguments.Add(GetArgumentExpression(constructorArgument.Type!, constructorArgument.Value)); | ||
| TypedConstant argument = arguments[i]; | ||
| if (argument.Kind == TypedConstantKind.Array) |
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Probably too much of a niche scenario to consider here, but could this logic be tripped up by something like the following?
new MyValidationAttribute(new int[] { 1, 2, 3 });
public class MyValidationAttribute(params int[][] values) : ValidationAttribute
{
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We can consider that in .NET 9.0 as I want to limit the changes, we are porting to .NET 8.0.
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That's actually not a valid attribute parameter type if you want to apply the attribute (could be interesting for testing, but I gather this generator only observes applied attributes).
https://sharplab.io/#v2:D4AQTAjAsAUCDMACciCyBPAagQwDYEsATbAF3wHsA7AQRJICd8AjAVxIFNEAuRWh5tpwDesRGORIMOAsTJU+jVhwAUAB2z1sAWwDOifJRIBtALqnEANzwt2OgJSIhiAL6xXMWEal4ipCjTpFQWVKdgB3fUNzJwgAGkQwePhnOxNYBGQwNHQAFXRVdlgRGHcgA===
error CS0181: Attribute constructor parameter 'values' has type 'int[][]', which is not a valid attribute parameter type
Attribute's parameters need to be represented in metadata and can only take a very limited set of types.
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Good point. I did recall that it's possible to nest arrays in attribute declarations, but it looks like it's only possible for object[] parameters:
I think that case would work fine with the logic as-is, but maybe a test is in order?
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I see this was brought up here as well: #91934 (comment)
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@dotnet-policy-service rerun |
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/backport to release/8.0 |
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Started backporting to release/8.0: https://github.com/dotnet/runtime/actions/runs/6161762714 |
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This change is to support the validation attributes having constructor with
paramskeyword parameter likeDeniedValuesAttributeandAllowedValuesAttribute.This fix need to be ported to rc2.