[release/6.0][mono][interp] Fix GetType called on ptr constrained to Nullable` (#6…#61305
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…tnet#61020) * [interp] Fix GetType called on ptr constrained to Nullable` We were statically optimizing this call to return the actual constrained class type, which is incorrect for nullables, because boxing of a nullable (as part of the constrained call) actually creates an object with the type of the nullable's value (or null if there is no value). * Add test for GetType call on ptr constrained to nullable
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Tagging subscribers to this area: @BrzVlad Issue DetailsBackport of #61020 to release/6.0 Fixes #61007 Customer ImpactFound by a customer, object.GetType() functions incorrectly on Nullable types in the interpreter. TestingManual RegressionYes, the regression was introduced this year. RiskLow. Regression introduced in net6.0
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BrzVlad
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@lewing Re-created this PR manually since github actions seemed to fail the second time |
lewing
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Tagging subscribers to this area: @BrzVlad Issue DetailsBackport of #61020 to release/6.0 Fixes #61007 Customer ImpactFound by a customer, object.GetType() functions incorrectly on Nullable types in the interpreter. TestingManual RegressionYes, the regression was introduced this year. RiskLow. Regression introduced in net6.0
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lewing
added
Servicing-approved
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/azp run runtime-staging, dotnet-linker-tests |
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Backport of #61020 to release/6.0
Customer Impact
Found by a customer, object.GetType() functions incorrectly on Nullable types in the interpreter.
Testing
Manual and CI
Regression
Yes, the regression was introduced this year.
Risk
Low. Regression introduced in net6.0