Fix issue with unbound Parameters

src/DelegateDecompiler.EntityFramework.Tests/GeneratedDocumentation/DetailedListOfSupportedCommands.md

@@ -1,6 +1,6 @@
 Detail of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:20
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:12
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework v6.1](http://msdn.microsoft.com/en-us/data/aa937723) (EF).
@@ -143,5 +143,11 @@ More will appear as we move forward.*
   * DateTime Where Compare With Static Variable (line 35)
 
 
+### Group: Additional Features
+#### [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs):
+- Supported
+  * Subquery As Context Extension Method (line 68)
+
+
 
 The End

src/DelegateDecompiler.EntityFramework.Tests/GeneratedDocumentation/DetailedListOfSupportedCommandsWithSQL.md

@@ -1,6 +1,6 @@
 Detail With Sql of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:20
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:12
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework v6.1](http://msdn.microsoft.com/en-us/data/aa937723) (EF).
@@ -832,5 +832,35 @@ SELECT
 
 
 
+### Group: Additional Features
+#### [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs):
+- Supported
+  * Subquery As Context Extension Method (line 68)
+     * T-Sql executed is
+
+```SQL
+SELECT 
+    [Project4].[EfParentId] AS [EfParentId], 
+    CASE WHEN ([Project4].[C1] IS NULL) THEN 0 ELSE [Project4].[C2] END AS [C1]
+    FROM ( SELECT 
+        [Project2].[EfParentId] AS [EfParentId], 
+        [Project2].[C1] AS [C1], 
+        (SELECT TOP (1) 
+            [Extent3].[EfChildId] AS [EfChildId]
+            FROM [dbo].[EfChilds] AS [Extent3]
+            WHERE [Extent3].[EfParentId] = [Project2].[EfParentId]) AS [C2]
+        FROM ( SELECT 
+            [Extent1].[EfParentId] AS [EfParentId], 
+            (SELECT TOP (1) 
+                [Extent2].[EfChildId] AS [EfChildId]
+                FROM [dbo].[EfChilds] AS [Extent2]
+                WHERE [Extent2].[EfParentId] = [Extent1].[EfParentId]) AS [C1]
+            FROM [dbo].[EfParents] AS [Extent1]
+        )  AS [Project2]
+    )  AS [Project4]
+```
+
+
+
 
 The End

src/DelegateDecompiler.EntityFramework.Tests/GeneratedDocumentation/SummaryOfSupportedCommands.md

@@ -1,6 +1,6 @@
 Summary of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:20
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:12
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework v6.1](http://msdn.microsoft.com/en-us/data/aa937723) (EF).
@@ -54,5 +54,9 @@ More will appear as we move forward.*
   * [Strings](../TestGroup50Types/Test01Strings.cs) (4 tests)
   * [DateTime](../TestGroup50Types/Test05DateTime.cs) (1 tests)
 
+### Group: Additional Features
+- Supported
+  * [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs) (1 tests)
+
 
 The End

src/DelegateDecompiler.EntityFramework.Tests/TestGroup90AdditionalFeatures/Test01NestedExpressions.cs

@@ -0,0 +1,72 @@
+using System.Linq;
+using DelegateDecompiler.EntityFramework.Tests.EfItems;
+using DelegateDecompiler.EntityFramework.Tests.Helpers;
+using NUnit.Framework;
+
+namespace DelegateDecompiler.EntityFramework.Tests.TestGroup90AdditionalFeatures
+{
+    public static class EfTestDbContextExtensions
+    {
+        [Computed]
+        public static int GetFirstChildIdByParent(this EfTestDbContext context, int pId)
+        {
+            return context.EfChildren.Where(a => a.EfParentId == pId).Select(b => b.EfChildId).FirstOrDefault();
+        }
+    }
+
+    class Test01NestedExpressions
+    {
+        private ClassEnvironment classEnv;
+
+        [OneTimeSetUp]
+        public void SetUpFixture()
+        {
+            classEnv = new ClassEnvironment();
+        }
+
+        class ParentIdWithFirstChildId
+        {
+            public int ParentId { get; set; }
+            public int FirstChildId { get; set; }
+
+            public override bool Equals(object obj)
+            {
+                return obj is ParentIdWithFirstChildId id && id.ParentId == ParentId && id.FirstChildId == FirstChildId;
+            }
+
+            public override int GetHashCode()
+            {
+                return ParentId * 131 + FirstChildId;
+            }
+        }
+
+        [Test]
+#if EF_CORE && !EF_CORE3 && !EF_CORE5
+        [Ignore("Not natively supported in EF_CORE < 3")]
+#endif
+        public void TestSubqueryAsContextExtensionMethod()
+        {
+            using (var env = new MethodEnvironment(classEnv))
+            {
+                //SETUP
+                var linq = env.Db.EfParents.Select(x => new ParentIdWithFirstChildId()
+                {
+                    ParentId = x.EfParentId,
+                    FirstChildId = env.Db.EfChildren.Where(a => a.EfParentId == x.EfParentId).Select(b => b.EfChildId).FirstOrDefault()
+                }).ToList();
+
+                //ATTEMPT
+                env.AboutToUseDelegateDecompiler();
+                var query = env.Db.EfParents.Select(x => new ParentIdWithFirstChildId()
+                {
+                    ParentId = x.EfParentId,
+                    FirstChildId = env.Db.GetFirstChildIdByParent(x.EfParentId)
+                }).Decompile();
+                var dd = query.ToList();
+
+                //VERIFY
+                env.CompareAndLogList(linq, dd);
+            }
+        }
+    }
+}

src/DelegateDecompiler.EntityFrameworkCore.Tests/GeneratedDocumentation/DetailedListOfSupportedCommands.md

@@ -1,6 +1,6 @@
 Detail of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:21
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:12
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework Core](https://docs.microsoft.com/en-us/ef/core/) (EF).
@@ -144,5 +144,9 @@ More will appear as we move forward.*
   * DateTime Where Compare With Static Variable (line 35)
 
 
+### Group: Additional Features
+#### [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs):
+
+
 
 The End

src/DelegateDecompiler.EntityFrameworkCore.Tests/GeneratedDocumentation/DetailedListOfSupportedCommandsWithSQL.md

@@ -1,6 +1,6 @@
 Detail With Sql of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:21
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:12
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework Core](https://docs.microsoft.com/en-us/ef/core/) (EF).
@@ -510,5 +510,9 @@ More will appear as we move forward.*
 
 
 
+### Group: Additional Features
+#### [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs):
+
+
 
 The End

src/DelegateDecompiler.EntityFrameworkCore.Tests/GeneratedDocumentation/SummaryOfSupportedCommands.md

@@ -1,6 +1,6 @@
 Summary of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:21
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:12
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework Core](https://docs.microsoft.com/en-us/ef/core/) (EF).
@@ -54,5 +54,7 @@ More will appear as we move forward.*
   * [Strings](../TestGroup50Types/Test01Strings.cs) (4 tests)
   * [DateTime](../TestGroup50Types/Test05DateTime.cs) (1 tests)
 
+### Group: Additional Features
+
 
 The End

src/DelegateDecompiler.EntityFrameworkCore3.Tests/GeneratedDocumentation/DetailedListOfSupportedCommands.md

@@ -1,6 +1,6 @@
 Detail of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:21
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:11
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework Core](https://docs.microsoft.com/en-us/ef/core/) (EF).
@@ -142,5 +142,11 @@ More will appear as we move forward.*
   * DateTime Where Compare With Static Variable (line 35)
 
 
+### Group: Additional Features
+#### [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs):
+- Supported
+  * Subquery As Context Extension Method (line 68)
+
+
 
 The End

src/DelegateDecompiler.EntityFrameworkCore3.Tests/GeneratedDocumentation/DetailedListOfSupportedCommandsWithSQL.md

@@ -1,6 +1,6 @@
 Detail With Sql of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:21
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:11
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework Core](https://docs.microsoft.com/en-us/ef/core/) (EF).
@@ -496,5 +496,17 @@ More will appear as we move forward.*
 
 
 
+### Group: Additional Features
+#### [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs):
+- Supported
+  * Subquery As Context Extension Method (line 68)
+     * T-Sql executed is
+
+```SQL
+
+```
+
+
+
 
 The End

src/DelegateDecompiler.EntityFrameworkCore3.Tests/GeneratedDocumentation/SummaryOfSupportedCommands.md

@@ -1,6 +1,6 @@
 Summary of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:21
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:11
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework Core](https://docs.microsoft.com/en-us/ef/core/) (EF).
@@ -54,5 +54,9 @@ More will appear as we move forward.*
   * [Strings](../TestGroup50Types/Test01Strings.cs) (4 tests)
   * [DateTime](../TestGroup50Types/Test05DateTime.cs) (1 tests)
 
+### Group: Additional Features
+- Supported
+  * [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs) (1 tests)
+
 
 The End

src/DelegateDecompiler.EntityFrameworkCore5.Tests/GeneratedDocumentation/DetailedListOfSupportedCommands.md

@@ -1,6 +1,6 @@
 Detail of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:21
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:11
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework Core](https://docs.microsoft.com/en-us/ef/core/) (EF).
@@ -142,5 +142,11 @@ More will appear as we move forward.*
   * DateTime Where Compare With Static Variable (line 35)
 
 
+### Group: Additional Features
+#### [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs):
+- Supported
+  * Subquery As Context Extension Method (line 68)
+
+
 
 The End

src/DelegateDecompiler.EntityFrameworkCore5.Tests/GeneratedDocumentation/DetailedListOfSupportedCommandsWithSQL.md

@@ -1,6 +1,6 @@
 Detail With Sql of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:21
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:11
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework Core](https://docs.microsoft.com/en-us/ef/core/) (EF).
@@ -764,5 +764,21 @@ WHERE [e].[StartDate] > '2000-01-01T00:00:00.0000000'
 
 
 
+### Group: Additional Features
+#### [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs):
+- Supported
+  * Subquery As Context Extension Method (line 68)
+     * T-Sql executed is
+
+```SQL
+SELECT [e0].[EfParentId] AS [ParentId], COALESCE((
+    SELECT TOP(1) [e].[EfChildId]
+    FROM [EfChildren] AS [e]
+    WHERE [e].[EfParentId] = [e0].[EfParentId]), 0) AS [FirstChildId]
+FROM [EfParents] AS [e0]
+```
+
+
+
 
 The End

src/DelegateDecompiler.EntityFrameworkCore5.Tests/GeneratedDocumentation/SummaryOfSupportedCommands.md

@@ -1,6 +1,6 @@
 Summary of supported commands
 ============
-## Documentation produced for DelegateDecompiler, version 0.30.0 on Tuesday, 14 December 2021 22:21
+## Documentation produced for DelegateDecompiler, version 0.30.0 on Thursday, 13 October 2022 16:11
 
 This file documents what linq commands **DelegateDecompiler** supports when
 working with [Entity Framework Core](https://docs.microsoft.com/en-us/ef/core/) (EF).
@@ -54,5 +54,9 @@ More will appear as we move forward.*
   * [Strings](../TestGroup50Types/Test01Strings.cs) (4 tests)
   * [DateTime](../TestGroup50Types/Test05DateTime.cs) (1 tests)
 
+### Group: Additional Features
+- Supported
+  * [Nested Expressions](../TestGroup90AdditionalFeatures/Test01NestedExpressions.cs) (1 tests)
+
 
 The End