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Posted to issues@ignite.apache.org by "Pavel Tupitsyn (Jira)" <ji...@apache.org> on 2026/01/29 14:54:00 UTC
[jira] [Updated] (IGNITE-27705) .NET: Primitive mapping requires reflection
[ https://issues.apache.org/jira/browse/IGNITE-27705?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pavel Tupitsyn updated IGNITE-27705:
------------------------------------
Description:
*table.GetKeyValueView<Guid, string>()* requires reflection, which is unexpected with simple native types.
I was trying to make a small demo and run it with `dotnet run app.cs` (https://devblogs.microsoft.com/dotnet/announcing-dotnet-run-app/), and it failed to run:
{code}
Unhandled exception. System.PlatformNotSupportedException: Dynamic code generation is not supported on this platform.
at System.Reflection.Emit.AssemblyBuilder.ThrowDynamicCodeNotSupported()
at System.Reflection.Emit.AssemblyBuilder.EnsureDynamicCodeSupported()
at System.Reflection.Emit.DynamicMethod.Init(String name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] signature, Type owner, Module m, Boolean skipVisibility, Boolean transparentMethod)
at System.Reflection.Emit.DynamicMethod..ctor(String name, Type returnType, Type[] parameterTypes, Module m, Boolean skipVisibility)
at Apache.Ignite.Internal.Table.Serialization.ObjectSerializerHandler`1.EmitWriter(Schema schema, Boolean keyOnly)
at Apache.Ignite.Internal.Table.Serialization.ObjectSerializerHandler`1.Write(BinaryTupleBuilder& tupleBuilder, T record, Schema schema, Boolean keyOnly, Span`1 noValueSet)
at Apache.Ignite.Internal.Table.Serialization.IRecordSerializerHandler`1.Write(MsgPackWriter& writer, Schema schema, T record, Boolean keyOnly, Boolean computeHash)
at Apache.Ignite.Internal.Table.Serialization.RecordSerializer`1.WriteWithHeader(MsgPackWriter& w, Nullable`1 txId, Schema schema, T rec, Boolean keyOnly)
at Apache.Ignite.Internal.Table.Serialization.RecordSerializer`1.Write(PooledArrayBuffer buf, Nullable`1 txId, Schema schema, T rec, Boolean keyOnly)
at Apache.Ignite.Internal.Table.RecordView`1.DoRecordOutOpAsync(ClientOp op, ITransaction transaction, T record, Boolean keyOnly, Nullable`1 schemaVersionOverride)
at Apache.Ignite.Internal.Table.RecordView`1.UpsertAsync(ITransaction transaction, T record)
at Apache.Ignite.Internal.Table.KeyValueView`2.PutAsync(ITransaction transaction, TK key, TV val)
{code}
We should provide mappers for supported types and not rely on reflection.
was:
*table.GetKeyValueView<Guid, string>()* requires reflection, which is unexpected with simple native types.
I was trying to make a small demo and run it with `dotnet run app.cs` (https://devblogs.microsoft.com/dotnet/announcing-dotnet-run-app/), and it failed to run:
{code}
Unhandled exception. System.PlatformNotSupportedException: Dynamic code generation is not supported on this platform.
at System.Reflection.Emit.AssemblyBuilder.ThrowDynamicCodeNotSupported()
at System.Reflection.Emit.AssemblyBuilder.EnsureDynamicCodeSupported()
at System.Reflection.Emit.DynamicMethod.Init(String name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] signature, Type owner, Module m, Boolean skipVisibility, Boolean transparentMethod)
at System.Reflection.Emit.DynamicMethod..ctor(String name, Type returnType, Type[] parameterTypes, Module m, Boolean skipVisibility)
at Apache.Ignite.Internal.Table.Serialization.ObjectSerializerHandler`1.EmitWriter(Schema schema, Boolean keyOnly)
at Apache.Ignite.Internal.Table.Serialization.ObjectSerializerHandler`1.Write(BinaryTupleBuilder& tupleBuilder, T record, Schema schema, Boolean keyOnly, Span`1 noValueSet)
at Apache.Ignite.Internal.Table.Serialization.IRecordSerializerHandler`1.Write(MsgPackWriter& writer, Schema schema, T record, Boolean keyOnly, Boolean computeHash)
at Apache.Ignite.Internal.Table.Serialization.RecordSerializer`1.WriteWithHeader(MsgPackWriter& w, Nullable`1 txId, Schema schema, T rec, Boolean keyOnly)
at Apache.Ignite.Internal.Table.Serialization.RecordSerializer`1.Write(PooledArrayBuffer buf, Nullable`1 txId, Schema schema, T rec, Boolean keyOnly)
at Apache.Ignite.Internal.Table.RecordView`1.DoRecordOutOpAsync(ClientOp op, ITransaction transaction, T record, Boolean keyOnly, Nullable`1 schemaVersionOverride)
at Apache.Ignite.Internal.Table.RecordView`1.UpsertAsync(ITransaction transaction, T record)
at Apache.Ignite.Internal.Table.KeyValueView`2.PutAsync(ITransaction transaction, TK key, TV val)
{code}
> .NET: Primitive mapping requires reflection
> -------------------------------------------
>
> Key: IGNITE-27705
> URL: https://issues.apache.org/jira/browse/IGNITE-27705
> Project: Ignite
> Issue Type: Bug
> Components: platforms ai3, thin clients ai3
> Reporter: Pavel Tupitsyn
> Assignee: Pavel Tupitsyn
> Priority: Major
> Labels: ignite-3
> Fix For: 3.2
>
>
> *table.GetKeyValueView<Guid, string>()* requires reflection, which is unexpected with simple native types.
> I was trying to make a small demo and run it with `dotnet run app.cs` (https://devblogs.microsoft.com/dotnet/announcing-dotnet-run-app/), and it failed to run:
> {code}
> Unhandled exception. System.PlatformNotSupportedException: Dynamic code generation is not supported on this platform.
> at System.Reflection.Emit.AssemblyBuilder.ThrowDynamicCodeNotSupported()
> at System.Reflection.Emit.AssemblyBuilder.EnsureDynamicCodeSupported()
> at System.Reflection.Emit.DynamicMethod.Init(String name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] signature, Type owner, Module m, Boolean skipVisibility, Boolean transparentMethod)
> at System.Reflection.Emit.DynamicMethod..ctor(String name, Type returnType, Type[] parameterTypes, Module m, Boolean skipVisibility)
> at Apache.Ignite.Internal.Table.Serialization.ObjectSerializerHandler`1.EmitWriter(Schema schema, Boolean keyOnly)
> at Apache.Ignite.Internal.Table.Serialization.ObjectSerializerHandler`1.Write(BinaryTupleBuilder& tupleBuilder, T record, Schema schema, Boolean keyOnly, Span`1 noValueSet)
> at Apache.Ignite.Internal.Table.Serialization.IRecordSerializerHandler`1.Write(MsgPackWriter& writer, Schema schema, T record, Boolean keyOnly, Boolean computeHash)
> at Apache.Ignite.Internal.Table.Serialization.RecordSerializer`1.WriteWithHeader(MsgPackWriter& w, Nullable`1 txId, Schema schema, T rec, Boolean keyOnly)
> at Apache.Ignite.Internal.Table.Serialization.RecordSerializer`1.Write(PooledArrayBuffer buf, Nullable`1 txId, Schema schema, T rec, Boolean keyOnly)
> at Apache.Ignite.Internal.Table.RecordView`1.DoRecordOutOpAsync(ClientOp op, ITransaction transaction, T record, Boolean keyOnly, Nullable`1 schemaVersionOverride)
> at Apache.Ignite.Internal.Table.RecordView`1.UpsertAsync(ITransaction transaction, T record)
> at Apache.Ignite.Internal.Table.KeyValueView`2.PutAsync(ITransaction transaction, TK key, TV val)
> {code}
> We should provide mappers for supported types and not rely on reflection.
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