Fix Contains on ImmutableArray

src/EFCore/Query/Internal/QueryableMethodNormalizingExpressionVisitor.cs

@@ -492,12 +492,16 @@ private Expression TryConvertCollectionContainsToQueryableContains(MethodCallExp
 
         var sourceType = methodCallExpression.Method.DeclaringType!.GetGenericArguments()[0];
 
+        var objectExpression = methodCallExpression.Object!.Type.IsValueType
+            ? Expression.Convert(methodCallExpression.Object!, typeof(IEnumerable<>).MakeGenericType(sourceType))
+            : methodCallExpression.Object!;
+
         return VisitMethodCall(
             Expression.Call(
                 QueryableMethods.Contains.MakeGenericMethod(sourceType),
                 Expression.Call(
                     QueryableMethods.AsQueryable.MakeGenericMethod(sourceType),
-                    methodCallExpression.Object!),
+                    objectExpression),
                 methodCallExpression.Arguments[0]));
     }
 

src/EFCore/Query/QueryRootProcessor.cs

@@ -85,7 +85,18 @@ protected override Expression VisitMethodCall(MethodCallExpression methodCallExp
 
     private Expression VisitQueryRootCandidate(Expression expression, Type elementClrType)
     {
-        switch (expression)
+        var candidateExpression = expression;
+
+        // In case the collection was value type, in order to call methods like AsQueryable,
+        // we need to convert it to IEnumerable<T> which requires boxing.
+        // We do that with Convert expression which we need to unwrap here.
+        if (expression is UnaryExpression { NodeType: ExpressionType.Convert } convertExpression
+            && convertExpression.Type.GetGenericTypeDefinition() == typeof(IEnumerable<>))
+        {
+            candidateExpression = convertExpression.Operand;
+        }
+
+        switch (candidateExpression)
         {
             // An array containing only constants is represented as a ConstantExpression with the array as the value.
             // Convert that into a NewArrayExpression for use with InlineQueryRootExpression

test/EFCore.Cosmos.FunctionalTests/Query/PrimitiveCollectionsQueryCosmosTest.cs

@@ -613,6 +613,30 @@ WHERE ARRAY_CONTAINS(@ints, c["Int"])
                     """
 @ints='[10,999]'
 
+SELECT VALUE c
+FROM root c
+WHERE NOT(ARRAY_CONTAINS(@ints, c["Int"]))
+""");
+            });
+
+    public override Task Parameter_collection_ImmutableArray_of_ints_Contains_int(bool async)
+        => CosmosTestHelpers.Instance.NoSyncTest(
+            async, async a =>
+            {
+                await base.Parameter_collection_ImmutableArray_of_ints_Contains_int(a);
+
+                AssertSql(
+                    """
+@ints='[10,999]'
+
+SELECT VALUE c
+FROM root c
+WHERE ARRAY_CONTAINS(@ints, c["Int"])
+""",
+                    //
+                    """
+@ints='[10,999]'
+
 SELECT VALUE c
 FROM root c
 WHERE NOT(ARRAY_CONTAINS(@ints, c["Int"]))

test/EFCore.Specification.Tests/Query/PrimitiveCollectionsQueryTestBase.cs

@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System.Collections.Immutable;
+
 namespace Microsoft.EntityFrameworkCore.Query;
 
 public abstract class PrimitiveCollectionsQueryTestBase<TFixture>(TFixture fixture) : QueryTestBase<TFixture>(fixture)
@@ -363,6 +365,20 @@ await AssertQuery(
             ss => ss.Set<PrimitiveCollectionsEntity>().Where(c => !ints.Contains(c.Int)));
     }
 
+    [ConditionalTheory]
+    [MemberData(nameof(IsAsyncData))]
+    public virtual async Task Parameter_collection_ImmutableArray_of_ints_Contains_int(bool async)
+    {
+        var ints = ImmutableArray.Create([10, 999]);
+
+        await AssertQuery(
+            async,
+            ss => ss.Set<PrimitiveCollectionsEntity>().Where(c => ints.Contains(c.Int)));
+        await AssertQuery(
+            async,
+            ss => ss.Set<PrimitiveCollectionsEntity>().Where(c => !ints.Contains(c.Int)));
+    }
+
     [ConditionalTheory]
     [MemberData(nameof(IsAsyncData))]
     public virtual async Task Parameter_collection_of_ints_Contains_nullable_int(bool async)

test/EFCore.SqlServer.FunctionalTests/Query/PrimitiveCollectionsQueryOldSqlServerTest.cs

@@ -498,6 +498,24 @@ WHERE [p].[Int] NOT IN (10, 999)
 """);
     }
 
+    public override async Task Parameter_collection_ImmutableArray_of_ints_Contains_int(bool async)
+    {
+        await base.Parameter_collection_ImmutableArray_of_ints_Contains_int(async);
+
+        AssertSql(
+            """
+SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[NullableWrappedId], [p].[NullableWrappedIdWithNullableComparer], [p].[String], [p].[Strings], [p].[WrappedId]
+FROM [PrimitiveCollectionsEntity] AS [p]
+WHERE [p].[Int] IN (10, 999)
+""",
+            //
+            """
+SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[NullableWrappedId], [p].[NullableWrappedIdWithNullableComparer], [p].[String], [p].[Strings], [p].[WrappedId]
+FROM [PrimitiveCollectionsEntity] AS [p]
+WHERE [p].[Int] NOT IN (10, 999)
+""");
+    }
+
     public override async Task Parameter_collection_of_ints_Contains_nullable_int(bool async)
     {
         await base.Parameter_collection_of_ints_Contains_nullable_int(async);

test/EFCore.SqlServer.FunctionalTests/Query/PrimitiveCollectionsQuerySqlServer160Test.cs

@@ -516,6 +516,34 @@ FROM OPENJSON(@ints) WITH ([value] int '$') AS [i]
             """
 @ints='[10,999]' (Size = 4000)
 
+SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[NullableWrappedId], [p].[NullableWrappedIdWithNullableComparer], [p].[String], [p].[Strings], [p].[WrappedId]
+FROM [PrimitiveCollectionsEntity] AS [p]
+WHERE [p].[Int] NOT IN (
+    SELECT [i].[value]
+    FROM OPENJSON(@ints) WITH ([value] int '$') AS [i]
+)
+""");
+    }
+
+    public override async Task Parameter_collection_ImmutableArray_of_ints_Contains_int(bool async)
+    {
+        await base.Parameter_collection_ImmutableArray_of_ints_Contains_int(async);
+
+        AssertSql(
+            """
+@ints='[10,999]' (Nullable = false) (Size = 4000)
+
+SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[NullableWrappedId], [p].[NullableWrappedIdWithNullableComparer], [p].[String], [p].[Strings], [p].[WrappedId]
+FROM [PrimitiveCollectionsEntity] AS [p]
+WHERE [p].[Int] IN (
+    SELECT [i].[value]
+    FROM OPENJSON(@ints) WITH ([value] int '$') AS [i]
+)
+""",
+            //
+            """
+@ints='[10,999]' (Nullable = false) (Size = 4000)
+
 SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[NullableWrappedId], [p].[NullableWrappedIdWithNullableComparer], [p].[String], [p].[Strings], [p].[WrappedId]
 FROM [PrimitiveCollectionsEntity] AS [p]
 WHERE [p].[Int] NOT IN (

test/EFCore.SqlServer.FunctionalTests/Query/PrimitiveCollectionsQuerySqlServerJsonTypeTest.cs

@@ -532,6 +532,34 @@ FROM OPENJSON(@ints) WITH ([value] int '$') AS [i]
             """
 @ints='[10,999]' (Size = 4000)
 
+SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[String], [p].[Strings]
+FROM [PrimitiveCollectionsEntity] AS [p]
+WHERE [p].[Int] NOT IN (
+    SELECT [i].[value]
+    FROM OPENJSON(@ints) WITH ([value] int '$') AS [i]
+)
+""");
+    }
+
+    public override async Task Parameter_collection_ImmutableArray_of_ints_Contains_int(bool async)
+    {
+        await base.Parameter_collection_ImmutableArray_of_ints_Contains_int(async);
+
+        AssertSql(
+            """
+@ints='[10,999]' (Nullable = false) (Size = 4000)
+
+SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[String], [p].[Strings]
+FROM [PrimitiveCollectionsEntity] AS [p]
+WHERE [p].[Int] IN (
+    SELECT [i].[value]
+    FROM OPENJSON(@ints) WITH ([value] int '$') AS [i]
+)
+""",
+            //
+            """
+@ints='[10,999]' (Nullable = false) (Size = 4000)
+
 SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[String], [p].[Strings]
 FROM [PrimitiveCollectionsEntity] AS [p]
 WHERE [p].[Int] NOT IN (

test/EFCore.SqlServer.FunctionalTests/Query/PrimitiveCollectionsQuerySqlServerTest.cs

@@ -539,6 +539,34 @@ FROM OPENJSON(@ints) WITH ([value] int '$') AS [i]
             """
 @ints='[10,999]' (Size = 4000)
 
+SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[NullableWrappedId], [p].[NullableWrappedIdWithNullableComparer], [p].[String], [p].[Strings], [p].[WrappedId]
+FROM [PrimitiveCollectionsEntity] AS [p]
+WHERE [p].[Int] NOT IN (
+    SELECT [i].[value]
+    FROM OPENJSON(@ints) WITH ([value] int '$') AS [i]
+)
+""");
+    }
+
+    public override async Task Parameter_collection_ImmutableArray_of_ints_Contains_int(bool async)
+    {
+        await base.Parameter_collection_ImmutableArray_of_ints_Contains_int(async);
+
+        AssertSql(
+            """
+@ints='[10,999]' (Nullable = false) (Size = 4000)
+
+SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[NullableWrappedId], [p].[NullableWrappedIdWithNullableComparer], [p].[String], [p].[Strings], [p].[WrappedId]
+FROM [PrimitiveCollectionsEntity] AS [p]
+WHERE [p].[Int] IN (
+    SELECT [i].[value]
+    FROM OPENJSON(@ints) WITH ([value] int '$') AS [i]
+)
+""",
+            //
+            """
+@ints='[10,999]' (Nullable = false) (Size = 4000)
+
 SELECT [p].[Id], [p].[Bool], [p].[Bools], [p].[DateTime], [p].[DateTimes], [p].[Enum], [p].[Enums], [p].[Int], [p].[Ints], [p].[NullableInt], [p].[NullableInts], [p].[NullableString], [p].[NullableStrings], [p].[NullableWrappedId], [p].[NullableWrappedIdWithNullableComparer], [p].[String], [p].[Strings], [p].[WrappedId]
 FROM [PrimitiveCollectionsEntity] AS [p]
 WHERE [p].[Int] NOT IN (

test/EFCore.Sqlite.FunctionalTests/Query/PrimitiveCollectionsQuerySqliteTest.cs

@@ -529,6 +529,34 @@ FROM json_each(@ints) AS "i"
             """
 @ints='[10,999]' (Size = 8)
 
+SELECT "p"."Id", "p"."Bool", "p"."Bools", "p"."DateTime", "p"."DateTimes", "p"."Enum", "p"."Enums", "p"."Int", "p"."Ints", "p"."NullableInt", "p"."NullableInts", "p"."NullableString", "p"."NullableStrings", "p"."NullableWrappedId", "p"."NullableWrappedIdWithNullableComparer", "p"."String", "p"."Strings", "p"."WrappedId"
+FROM "PrimitiveCollectionsEntity" AS "p"
+WHERE "p"."Int" NOT IN (
+    SELECT "i"."value"
+    FROM json_each(@ints) AS "i"
+)
+""");
+    }
+
+    public override async Task Parameter_collection_ImmutableArray_of_ints_Contains_int(bool async)
+    {
+        await base.Parameter_collection_ImmutableArray_of_ints_Contains_int(async);
+
+        AssertSql(
+            """
+@ints='[10,999]' (Nullable = false) (Size = 8)
+
+SELECT "p"."Id", "p"."Bool", "p"."Bools", "p"."DateTime", "p"."DateTimes", "p"."Enum", "p"."Enums", "p"."Int", "p"."Ints", "p"."NullableInt", "p"."NullableInts", "p"."NullableString", "p"."NullableStrings", "p"."NullableWrappedId", "p"."NullableWrappedIdWithNullableComparer", "p"."String", "p"."Strings", "p"."WrappedId"
+FROM "PrimitiveCollectionsEntity" AS "p"
+WHERE "p"."Int" IN (
+    SELECT "i"."value"
+    FROM json_each(@ints) AS "i"
+)
+""",
+            //
+            """
+@ints='[10,999]' (Nullable = false) (Size = 8)
+
 SELECT "p"."Id", "p"."Bool", "p"."Bools", "p"."DateTime", "p"."DateTimes", "p"."Enum", "p"."Enums", "p"."Int", "p"."Ints", "p"."NullableInt", "p"."NullableInts", "p"."NullableString", "p"."NullableStrings", "p"."NullableWrappedId", "p"."NullableWrappedIdWithNullableComparer", "p"."String", "p"."Strings", "p"."WrappedId"
 FROM "PrimitiveCollectionsEntity" AS "p"
 WHERE "p"."Int" NOT IN (