Fixed type inference issue when using any with schema-first.

src/HotChocolate/Core/src/Execution/Pipeline/ExceptionMiddleware.cs

@@ -38,4 +38,3 @@ public async ValueTask InvokeAsync(IRequestContext context)
         }
     }
 }
-

src/HotChocolate/Core/src/Types/Types/Descriptors/Conventions/DefaultTypeInspector.cs

@@ -48,7 +48,8 @@ public DefaultTypeInspector(bool ignoreRequiredAttribute = false)
     public ReadOnlySpan<MemberInfo> GetMembers(
         Type type,
         bool includeIgnored = false,
-        bool includeStatic = false)
+        bool includeStatic = false,
+        bool allowObject = false)
     {
         if (type is null)
         {
@@ -70,7 +71,7 @@ public DefaultTypeInspector(bool ignoreRequiredAttribute = false)
 
         foreach (var member in members)
         {
-            if (CanBeHandled(member, includeIgnored))
+            if (CanBeHandled(member, includeIgnored, allowObject))
             {
                 temp[next++] = member;
             }
@@ -683,7 +684,10 @@ public bool CollectNullability(IExtendedType type, Span<bool?> buffer, out int w
         return false;
     }
 
-    private bool CanBeHandled(MemberInfo member, bool includeIgnored)
+    private bool CanBeHandled(
+        MemberInfo member,
+        bool includeIgnored,
+        bool allowObjectType)
     {
         if (IsSystemMember(member))
         {
@@ -714,15 +718,16 @@ private bool CanBeHandled(MemberInfo member, bool includeIgnored)
 
         if (member is PropertyInfo property)
         {
-            return CanHandleReturnType(member, property.PropertyType) &&
+            return CanHandleReturnType(member, property.PropertyType, allowObjectType) &&
                 property.GetIndexParameters().Length == 0;
         }
 
-        if (member is MethodInfo method && CanHandleReturnType(member, method.ReturnType))
+        if (member is MethodInfo method &&
+            CanHandleReturnType(member, method.ReturnType, allowObjectType))
         {
             foreach (var parameter in method.GetParameters())
             {
-                if (!CanHandleParameter(parameter))
+                if (!CanHandleParameter(parameter, allowObjectType))
                 {
 
                     return false;
@@ -735,7 +740,10 @@ private bool CanBeHandled(MemberInfo member, bool includeIgnored)
         return false;
     }
 
-    private static bool CanHandleReturnType(MemberInfo member, Type returnType)
+    private static bool CanHandleReturnType(
+        MemberInfo member,
+        Type returnType,
+        bool allowObjectType)
     {
         if (returnType == typeof(void) ||
             returnType == typeof(Task) ||
@@ -748,7 +756,7 @@ private static bool CanHandleReturnType(MemberInfo member, Type returnType)
             returnType == typeof(Task<object>) ||
             returnType == typeof(ValueTask<object>))
         {
-            return HasConfiguration(member);
+            return allowObjectType || HasConfiguration(member);
         }
 
         if (typeof(IAsyncResult).IsAssignableFrom(returnType))
@@ -797,7 +805,7 @@ private static bool CanHandleReturnType(MemberInfo member, Type returnType)
         return true;
     }
 
-    private static bool CanHandleParameter(ParameterInfo parameter)
+    private static bool CanHandleParameter(ParameterInfo parameter, bool allowObjectType)
     {
         // schema, object type and object field can be injected into a resolver, so
         // we allow these as parameter type.
@@ -811,8 +819,12 @@ private static bool CanHandleParameter(ParameterInfo parameter)
         }
 
         // All other types may cause errors and need to have an explicit configuration.
-        if (parameterType == typeof(object) ||
-            typeof(ITypeSystemMember).IsAssignableFrom(parameterType))
+        if (parameterType == typeof(object))
+        {
+            return allowObjectType || HasConfiguration(parameter);
+        }
+
+        if (typeof(ITypeSystemMember).IsAssignableFrom(parameterType))
         {
             return HasConfiguration(parameter);
         }

src/HotChocolate/Core/src/Types/Types/Descriptors/Conventions/ITypeInspector.cs

@@ -3,7 +3,6 @@
 using System.Diagnostics.CodeAnalysis;
 using System.Reflection;
 using HotChocolate.Internal;
-using HotChocolate.Types.Relay;
 
 #nullable enable
 
@@ -27,13 +26,17 @@ public interface ITypeInspector : IConvention
     /// <param name="includeStatic">
     /// Specifies if static members shall be returned.
     /// </param>
+    /// <param name="allowObject">
+    /// Specifies if object is allowed as parameter or return type without a type attribute.
+    /// </param>
     /// <returns>
     /// Returns the relevant members of a object or input object.
     /// </returns>
     ReadOnlySpan<MemberInfo> GetMembers(
         Type type,
         bool includeIgnored = false,
-        bool includeStatic = false);
+        bool includeStatic = false,
+        bool allowObject = false);
 
     /// <summary>
     /// Defines if a member shall be ignored. This method interprets ignore attributes.

src/HotChocolate/Core/src/Types/Types/Helpers/TypeMemHelper.cs

@@ -102,6 +102,7 @@ public static void Clear()
         Interlocked.Exchange(ref _inputFieldDefinitionMap, null);
         Interlocked.Exchange(ref _inputFieldMap, null);
         Interlocked.Exchange(ref _directiveArgumentMap, null);
+        Interlocked.Exchange(ref _argumentNameMap, null);
         Interlocked.Exchange(ref _memberSet, null);
         Interlocked.Exchange(ref _nameSet, null);
     }

src/HotChocolate/Core/src/Types/Types/InputObjectType.cs

@@ -7,10 +7,11 @@
 namespace HotChocolate.Types;
 
 /// <summary>
+/// <para>
 /// A GraphQL Input Object defines a set of input fields; the input fields are either scalars,
 /// enums, or other input objects. This allows arguments to accept arbitrarily complex structs.
-///
-/// In this example, an Input Object called Point2D describes x and y inputs:
+/// </para>
+/// <para>In this example, an Input Object called Point2D describes x and y inputs:</para>
 ///
 /// <code>
 /// input Point2D {

src/HotChocolate/Core/src/Types/Types/Interceptors/ResolverTypeInterceptor.cs

@@ -371,7 +371,7 @@ private void CollectResolverMembers(CompletionContext context, string typeName)
 
     private void CollectSourceMembers(CompletionContext context, Type runtimeType)
     {
-        foreach (var member in _typeInspector.GetMembers(runtimeType))
+        foreach (var member in _typeInspector.GetMembers(runtimeType, allowObject: true))
         {
             var name = _naming.GetMemberName(member, MemberKind.ObjectField);
             context.Members[name] = member;

src/HotChocolate/Core/test/Execution.Tests/SchemaFirstTests.cs

@@ -1,6 +1,11 @@
+#nullable enable
 using System.Threading.Tasks;
+using CookieCrumble;
 using HotChocolate.Tests;
+using Microsoft.Extensions.DependencyInjection;
+using Newtonsoft.Json;
 using Xunit;
+using JsonSerializer = System.Text.Json.JsonSerializer;
 
 namespace HotChocolate.Execution;
 
@@ -13,9 +18,9 @@ public async Task BindObjectTypeImplicit()
         var schema = SchemaBuilder.New()
             .AddDocumentFromString(
                 @"type Query {
-                        test: String
-                        testProp: String
-                    }")
+                    test: String
+                    testProp: String
+                }")
             .AddResolver<Query>()
             .Create();
 
@@ -68,13 +73,13 @@ public async Task EnumAsOutputType()
         var schema = SchemaBuilder.New()
             .AddDocumentFromString(
                 @"type Query {
-                        enumValue: FooEnum
-                    }
+                    enumValue: FooEnum
+                }
 
-                    enum FooEnum {
-                        BAR
-                        BAZ
-                    }")
+                enum FooEnum {
+                    BAR
+                    BAZ
+                }")
             .AddResolver<EnumQuery>("Query")
             .Create();
 
@@ -121,18 +126,20 @@ public async Task InputObjectWithEnum()
         // arrange
         var schema = SchemaBuilder.New()
             .AddDocumentFromString(
-                @"type Query {
-                        enumInInputObject(payload:Payload) : String
-                    }
+                """
+                type Query {
+                  enumInInputObject(payload: Payload) : String
+                }
 
-                    input Payload {
-                        value: FooEnum
-                    }
+                input Payload {
+                  value: FooEnum
+                }
 
-                    enum FooEnum {
-                        BAR
-                        BAZ
-                    }")
+                enum FooEnum {
+                  BAR
+                  BAZ
+                }
+                """)
             .AddResolver<EnumQuery>("Query")
             .AddResolver<Payload>()
             .Create();
@@ -147,6 +154,71 @@ enum FooEnum {
         result.MatchSnapshot();
     }
 
+    /// <summary>
+    /// https://github.com/ChilliCream/graphql-platform/issues/5730
+    /// </summary>
+    [Fact]
+    public async Task Issue_5730()
+    {
+        var result =
+            await new ServiceCollection()
+                .AddGraphQLServer()
+                .AddDocumentFromString(
+                    """
+                    schema {
+                      query: Query
+                      mutation: Mutation
+                    }
+
+                    type Query {
+                       dummy: String!
+                    }
+
+                    type Mutation {
+                        changeChannelParameters(
+                            input: ChangeChannelParameterInput!)
+                            : ChangeChannelParameterPayload!
+                    }
+
+                    input ChangeChannelParameterInput {
+                      parameterChangeInfo: [ParameterValuePair!]!
+                    }
+
+                    input ParameterValuePair {
+                      value: Any
+                    }
+
+                    type ChangeChannelParameterPayload {
+                      message: String!
+                    }
+
+                    scalar Any
+                    """)
+                .AddResolver<Query5730>("Query")
+                .AddResolver<Mutation5730>("Mutation")
+                .ExecuteRequestAsync(
+                    """
+                    mutation {
+                      changeChannelParameters(input: {
+                        parameterChangeInfo: [ { value: { a: "b" } } ]
+                      }) {
+                        message
+                      }
+                    }
+                    """);
+
+        result.MatchInlineSnapshot(
+            """
+            {
+              "data": {
+                "changeChannelParameters": {
+                  "message": "b"
+                }
+              }
+            }
+            """);
+    }
+
     public class Query
     {
         public string GetTest()
@@ -199,4 +271,39 @@ public enum FooEnum
         Baz,
         BazBar
     }
-}
+
+    public class Query5730
+    {
+        public string Dummy => "Don't care";
+    }
+
+    public class Mutation5730
+    {
+        public Task<ChangeChannelParameterPayload> ChangeChannelParametersAsync(
+            ChangeChannelParameterInput input,
+            CancellationToken _)
+        {
+            var message = Assert.IsType<string>(
+                Assert.IsType<Dictionary<string, object>>(
+                    input.ParameterChangeInfo[0].Value)["a"]);
+
+            return Task.FromResult(new ChangeChannelParameterPayload { Message = message });
+        }
+    }
+
+    public record ChangeChannelParameterInput
+    {
+        public ParameterValuePair[] ParameterChangeInfo { get; set; } =
+            Array.Empty<ParameterValuePair>();
+    }
+
+    public record ParameterValuePair
+    {
+        public object? Value { get; set; }
+    }
+
+    public record ChangeChannelParameterPayload
+    {
+        public string Message { get; init; } = string.Empty;
+    }
+}