Support for const and static in projectables

tests/EntityFrameworkCore.Projectables.FunctionalTests/StaticMembersTests.FilterOnProjectableProperty.verified.txt

@@ -0,0 +1,3 @@
+SELECT [e].[Id], [e].[Price]
+FROM [Entity] AS [e]
+WHERE [e].[Price] > 1.0E0

tests/EntityFrameworkCore.Projectables.FunctionalTests/StaticMembersTests.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Data.SqlTypes;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using EntityFrameworkCore.Projectables.Extensions;
+using EntityFrameworkCore.Projectables.FunctionalTests.Helpers;
+using Microsoft.EntityFrameworkCore;
+using ScenarioTests;
+using VerifyXunit;
+using Xunit;
+
+namespace EntityFrameworkCore.Projectables.FunctionalTests
+{
+    [UsesVerify]
+    public class StaticMembersTests
+    {
+        public static class Constants
+        {
+            public static readonly double ExpensiveThreshold = 1;
+        }
+
+        public record Entity
+        {
+            public int Id { get; set; }
+
+            public double Price { get; set; }
+
+            [Projectable]
+            public bool IsExpensive => Price > Constants.ExpensiveThreshold;
+        }
+
+        [Fact]
+        public Task FilterOnProjectableProperty()
+        {
+            using var dbContext = new SampleDbContext<Entity>(Infrastructure.CompatibilityMode.Full);
+
+            var query = dbContext.Set<Entity>()
+                .Where(x => x.IsExpensive);
+
+            return Verifier.Verify(query.ToQueryString());
+        }
+    }
+}

tests/EntityFrameworkCore.Projectables.Generator.Tests/ProjectionExpressionGeneratorTests.ConstMember.verified.txt

@@ -0,0 +1,18 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+using Foo;
+
+namespace EntityFrameworkCore.Projectables.Generated
+#nullable disable
+{
+    public static class Foo_Foo_IdWithBar
+    {
+        public static System.Linq.Expressions.Expression<System.Func<global::Foo.Foo, int>> Expression()
+        {
+            return (global::Foo.Foo @this) => 
+                @this.Id + global::Foo.Foo.Bar;
+        }
+    }
+}

tests/EntityFrameworkCore.Projectables.Generator.Tests/ProjectionExpressionGeneratorTests.ConstMember2.verified.txt

@@ -0,0 +1,18 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+using Foo;
+
+namespace EntityFrameworkCore.Projectables.Generated
+#nullable disable
+{
+    public static class Foo_Foo_IdWithBar
+    {
+        public static System.Linq.Expressions.Expression<System.Func<global::Foo.Foo, int>> Expression()
+        {
+            return (global::Foo.Foo @this) => 
+                @this.Id + global::Foo.Constants.Bar;
+        }
+    }
+}

tests/EntityFrameworkCore.Projectables.Generator.Tests/ProjectionExpressionGeneratorTests.ConstMember3.verified.txt

@@ -0,0 +1,18 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+using Foo;
+
+namespace EntityFrameworkCore.Projectables.Generated
+#nullable disable
+{
+    public static class Foo_Foo_IdWithBar
+    {
+        public static System.Linq.Expressions.Expression<System.Func<global::Foo.Foo, int>> Expression()
+        {
+            return (global::Foo.Foo @this) => 
+                @this.Id + global::Foo.Foo.Bar;
+        }
+    }
+}

tests/EntityFrameworkCore.Projectables.Generator.Tests/ProjectionExpressionGeneratorTests.ConstantExpression.received.txt

@@ -0,0 +1,18 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+using Foo;
+
+namespace EntityFrameworkCore.Projectables.Generated
+#nullable disable
+{
+    public static class Foo_Foo_IdWithBar
+    {
+        public static System.Linq.Expressions.Expression<System.Func<global::Foo.Foo, int>> Expression()
+        {
+            return (global::Foo.Foo @this) => 
+                @this.Id + @this.Bar;
+        }
+    }
+}

tests/EntityFrameworkCore.Projectables.Generator.Tests/ProjectionExpressionGeneratorTests.ConstantExpression2.received.txt

@@ -0,0 +1,18 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+using Foo;
+
+namespace EntityFrameworkCore.Projectables.Generated
+#nullable disable
+{
+    public static class Foo_Foo_IdWithBar
+    {
+        public static System.Linq.Expressions.Expression<System.Func<global::Foo.Foo, bool>> Expression()
+        {
+            return (global::Foo.Foo @this) => 
+                @this.Id > global::Foo.Constants.Bar;
+        }
+    }
+}

tests/EntityFrameworkCore.Projectables.Generator.Tests/ProjectionExpressionGeneratorTests.ConstantExpression2.verified.txt

@@ -0,0 +1,18 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+using Foo;
+
+namespace EntityFrameworkCore.Projectables.Generated
+#nullable disable
+{
+    public static class Foo_Foo_IdWithBar
+    {
+        public static System.Linq.Expressions.Expression<System.Func<global::Foo.Foo, int>> Expression()
+        {
+            return (global::Foo.Foo @this) => 
+                @this.Id + global::Foo.Constants.Bar;
+        }
+    }
+}

tests/EntityFrameworkCore.Projectables.Generator.Tests/ProjectionExpressionGeneratorTests.ConstantExpressions.received.txt

@@ -0,0 +1,18 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+using Foo;
+
+namespace EntityFrameworkCore.Projectables.Generated
+#nullable disable
+{
+    public static class Foo_Foo_IdWithBar
+    {
+        public static System.Linq.Expressions.Expression<System.Func<global::Foo.Foo, int>> Expression()
+        {
+            return (global::Foo.Foo @this) => 
+                @this.Id + @this.Bar;
+        }
+    }
+}

tests/EntityFrameworkCore.Projectables.Generator.Tests/ProjectionExpressionGeneratorTests.StaticMembers.verified.txt

@@ -0,0 +1,18 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+using Foo;
+
+namespace EntityFrameworkCore.Projectables.Generated
+#nullable disable
+{
+    public static class Foo_Foo_IdWithBar
+    {
+        public static System.Linq.Expressions.Expression<System.Func<global::Foo.Foo, int>> Expression()
+        {
+            return (global::Foo.Foo @this) => 
+                @this.Id + global::Foo.Foo.Bar;
+        }
+    }
+}

tests/EntityFrameworkCore.Projectables.Generator.Tests/ProjectionExpressionGeneratorTests.StaticMembers2.verified.txt

@@ -0,0 +1,18 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+using Foo;
+
+namespace EntityFrameworkCore.Projectables.Generated
+#nullable disable
+{
+    public static class Foo_Foo_IdWithBar
+    {
+        public static System.Linq.Expressions.Expression<System.Func<global::Foo.Foo, int>> Expression()
+        {
+            return (global::Foo.Foo @this) => 
+                @this.Id + global::Foo.Constants.Bar;
+        }
+    }
+}

tests/EntityFrameworkCore.Projectables.Generator.Tests/ProjectionExpressionGeneratorTests.cs

@@ -988,6 +988,155 @@ namespace Foo {
             return Verifier.Verify(result.GeneratedTrees[0].ToString());
         }
 
+        [Fact]
+        public Task StaticMembers()
+        {
+            var compilation = CreateCompilation(@"
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+
+namespace Foo {
+    public class Foo {
+        public static int Bar { get; set; }
+
+        public int Id { get; set; }
+  
+        [Projectable]
+        public int IdWithBar() => Id + Bar;
+    }
+}
+");
+
+            var result = RunGenerator(compilation);
+
+            Assert.Empty(result.Diagnostics);
+            Assert.Single(result.GeneratedTrees);
+
+            return Verifier.Verify(result.GeneratedTrees[0].ToString());
+        }
+
+        [Fact]
+        public Task StaticMembers2()
+        {
+            var compilation = CreateCompilation(@"
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+
+namespace Foo {
+    public static class Constants {
+        public static readonly int Bar  = 1;
+    }
+
+    public class Foo {
+        public int Id { get; set; }
+  
+        [Projectable]
+        public int IdWithBar() => Id + Constants.Bar;
+    }
+}
+");
+
+            var result = RunGenerator(compilation);
+
+            Assert.Empty(result.Diagnostics);
+            Assert.Single(result.GeneratedTrees);
+
+            return Verifier.Verify(result.GeneratedTrees[0].ToString());
+        }
+
+        [Fact]
+        public Task ConstMember()
+        {
+            var compilation = CreateCompilation(@"
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+
+namespace Foo {
+    public class Foo {
+        public const int Bar = 1;
+
+        public int Id { get; set; }
+  
+        [Projectable]
+        public int IdWithBar() => Id + Bar;
+    }
+}
+");
+
+            var result = RunGenerator(compilation);
+
+            Assert.Empty(result.Diagnostics);
+            Assert.Single(result.GeneratedTrees);
+
+            return Verifier.Verify(result.GeneratedTrees[0].ToString());
+        }
+
+        [Fact]
+        public Task ConstMember2()
+        {
+            var compilation = CreateCompilation(@"
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+
+namespace Foo {
+    public static class Constants {
+        public const int Bar  = 1;
+    }
+
+    public class Foo {
+        public int Id { get; set; }
+  
+        [Projectable]
+        public int IdWithBar() => Id + Constants.Bar;
+    }
+}
+");
+
+            var result = RunGenerator(compilation);
+
+            Assert.Empty(result.Diagnostics);
+            Assert.Single(result.GeneratedTrees);
+
+            return Verifier.Verify(result.GeneratedTrees[0].ToString());
+        }
+
+        [Fact]
+        public Task ConstMember3()
+        {
+            var compilation = CreateCompilation(@"
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using EntityFrameworkCore.Projectables;
+
+namespace Foo {
+    public class Foo {
+        public const int Bar = 1;
+
+        public int Id { get; set; }
+  
+        [Projectable]
+        public int IdWithBar() => Id + Foo.Bar;
+    }
+}
+");
+
+            var result = RunGenerator(compilation);
+
+            Assert.Empty(result.Diagnostics);
+            Assert.Single(result.GeneratedTrees);
+
+            return Verifier.Verify(result.GeneratedTrees[0].ToString());
+        }
+
         [Fact]
         public Task RelationalProperty()
         {