Show error if page directive is not at the top of file

src/Microsoft.AspNetCore.Mvc.Razor.Extensions/Properties/Resources.Designer.cs

@@ -262,6 +262,20 @@ namespace Microsoft.AspNetCore.Mvc.Razor.Extensions
         internal static string FormatPageDirectiveCannotBeImported(object p0, object p1)
             => string.Format(CultureInfo.CurrentCulture, GetString("PageDirectiveCannotBeImported"), p0, p1);
 
+        /// <summary>
+        /// The '@{0}' directive must exist at the top of the file. Only comments and whitespace are allowed before the '@{0}' directive.
+        /// </summary>
+        internal static string PageDirectiveMustExistAtTheTopOfFile
+        {
+            get => GetString("PageDirectiveMustExistAtTheTopOfFile");
+        }
+
+        /// <summary>
+        /// The '@{0}' directive must exist at the top of the file. Only comments and whitespace are allowed before the '@{0}' directive.
+        /// </summary>
+        internal static string FormatPageDirectiveMustExistAtTheTopOfFile(object p0)
+            => string.Format(CultureInfo.CurrentCulture, GetString("PageDirectiveMustExistAtTheTopOfFile"), p0);
+
         /// <summary>
         /// Mark the page as a Razor Page.
         /// </summary>

src/Microsoft.AspNetCore.Mvc.Razor.Extensions/RazorExtensionsDiagnosticFactory.cs

@@ -113,5 +113,19 @@ namespace Microsoft.AspNetCore.Mvc.Razor.Extensions
 
             return diagnostic;
         }
+
+        internal static readonly RazorDiagnosticDescriptor PageDirective_MustExistAtTheTopOfFile =
+            new RazorDiagnosticDescriptor(
+                $"{DiagnosticPrefix}3906",
+                () => Resources.PageDirectiveMustExistAtTheTopOfFile,
+                RazorDiagnosticSeverity.Error);
+
+        public static RazorDiagnostic CreatePageDirective_MustExistAtTheTopOfFile(SourceSpan source)
+        {
+            var fileName = Path.GetFileName(source.FilePath);
+            var diagnostic = RazorDiagnostic.Create(PageDirective_MustExistAtTheTopOfFile, source, PageDirective.Directive.Directive);
+
+            return diagnostic;
+        }
     }
 }

src/Microsoft.AspNetCore.Mvc.Razor.Extensions/RazorPageDocumentClassifierPass.cs

@@ -11,6 +11,25 @@ namespace Microsoft.AspNetCore.Mvc.Razor.Extensions
     {
         public static readonly string RazorPageDocumentKind = "mvc.1.0.razor-page";
 
+        private static readonly RazorProjectEngine LeadingDirectiveParsingEngine = RazorProjectEngine.Create(
+            RazorConfiguration.Default,
+            RazorProjectFileSystem.Create("/"),
+            builder =>
+            {
+                for (var i = builder.Phases.Count - 1; i >= 0; i--)
+                {
+                    var phase = builder.Phases[i];
+                    builder.Phases.RemoveAt(i);
+                    if (phase is IRazorDocumentClassifierPhase)
+                    {
+                        break;
+                    }
+                }
+
+                RazorExtensions.Register(builder);
+                builder.Features.Add(new LeadingDirectiveParserOptionsFeature());
+            });
+
         protected override string DocumentKind => RazorPageDocumentKind;
 
         protected override bool IsMatch(RazorCodeDocument codeDocument, DocumentIntermediateNode documentNode)
@@ -58,6 +77,34 @@ namespace Microsoft.AspNetCore.Mvc.Razor.Extensions
                 pageDirective.DirectiveNode.Diagnostics.Add(
                     RazorExtensionsDiagnosticFactory.CreatePageDirective_CannotBeImported(pageDirective.DirectiveNode.Source.Value));
             }
+            else
+            {
+                // The document contains a page directive and it is not imported.
+                // We now want to make sure this page directive exists at the top of the file.
+                // We are going to do that by re-parsing the document until the very first line that is not Razor comment
+                // or whitespace. We then make sure the page directive still exists in the re-parsed IR tree.
+                var leadingDirectiveCodeDocument = RazorCodeDocument.Create(codeDocument.Source);
+                LeadingDirectiveParsingEngine.Engine.Process(leadingDirectiveCodeDocument);
+
+                var leadingDirectiveDocumentIRNode = leadingDirectiveCodeDocument.GetDocumentIntermediateNode();
+                if (!PageDirective.TryGetPageDirective(leadingDirectiveDocumentIRNode, out var _))
+                {
+                    // The page directive is not the leading directive. Add an error.
+                    // Note: Adding the error to the top-level document node because the directive node will be removed by a later optimization pass.
+                    document.Diagnostics.Add(
+                        RazorExtensionsDiagnosticFactory.CreatePageDirective_MustExistAtTheTopOfFile(pageDirective.DirectiveNode.Source.Value));
+                }
+            }
+        }
+
+        private class LeadingDirectiveParserOptionsFeature : RazorEngineFeatureBase, IConfigureRazorParserOptionsFeature
+        {
+            public int Order { get; }
+
+            public void Configure(RazorParserOptionsBuilder options)
+            {
+                options.ParseLeadingDirectives = true;
+            }
         }
     }
 }

src/Microsoft.AspNetCore.Mvc.Razor.Extensions/Resources.resx

@@ -171,6 +171,9 @@
   <data name="PageDirectiveCannotBeImported" xml:space="preserve">
     <value>The '@{0}' directive specified in {1} file will not be imported. The directive must appear at the top of each Razor cshtml file.</value>
   </data>
+  <data name="PageDirectiveMustExistAtTheTopOfFile" xml:space="preserve">
+    <value>The '@{0}' directive must precede all other elements defined in a Razor file.</value>
+  </data>
   <data name="PageDirective_Description" xml:space="preserve">
     <value>Mark the page as a Razor Page.</value>
   </data>

test/Microsoft.AspNetCore.Mvc.Razor.Extensions.Test/IntegrationTests/CodeGenerationIntegrationTest.cs

@@ -282,6 +282,14 @@ public class AllTagHelper : {typeof(TagHelper).FullName}
             
             RunRuntimeTest(compilation);
         }
+
+        [Fact]
+        public void RazorPageWithNoLeadingPageDirective_Runtime()
+        {
+            var compilation = BaseCompilation;
+
+            RunRuntimeTest(compilation);
+        }
         #endregion
 
         #region DesignTime
@@ -561,6 +569,14 @@ public class AllTagHelper : {typeof(TagHelper).FullName}
             
             RunDesignTimeTest(compilation);
         }
+
+        [Fact]
+        public void RazorPageWithNoLeadingPageDirective_DesignTime()
+        {
+            var compilation = BaseCompilation;
+
+            RunDesignTimeTest(compilation);
+        }
         #endregion
 
         private void RunRuntimeTest(

test/Microsoft.AspNetCore.Mvc.Razor.Extensions.Test/RazorPageDocumentClassifierPassTest.cs

@@ -1,6 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System;
 using Microsoft.AspNetCore.Razor.Language;
 using Microsoft.AspNetCore.Razor.Language.Intermediate;
 using Xunit;
@@ -35,6 +36,70 @@ namespace Microsoft.AspNetCore.Mvc.Razor.Extensions
             Assert.Equal(expectedDiagnostic, diagnostic);
         }
 
+        [Fact]
+        public void RazorPageDocumentClassifierPass_LogsErrorIfDirectiveNotAtTopOfFile()
+        {
+            // Arrange
+            var sourceSpan = new SourceSpan(
+                "Test.cshtml",
+                absoluteIndex: 14 + Environment.NewLine.Length * 2,
+                lineIndex: 2,
+                characterIndex: 0,
+                length: 5 + Environment.NewLine.Length);
+
+            var expectedDiagnostic = RazorExtensionsDiagnosticFactory.CreatePageDirective_MustExistAtTheTopOfFile(sourceSpan);
+            var content = @"
+@somethingelse
+@page
+";
+            var codeDocument = RazorCodeDocument.Create(RazorSourceDocument.Create(content, "Test.cshtml"));
+
+            var engine = CreateEngine();
+            var irDocument = CreateIRDocument(engine, codeDocument);
+            var pass = new RazorPageDocumentClassifierPass
+            {
+                Engine = engine
+            };
+
+            // Act
+            pass.Execute(codeDocument, irDocument);
+            var visitor = new Visitor();
+            visitor.Visit(irDocument);
+
+            // Assert
+            var documentNode = codeDocument.GetDocumentIntermediateNode();
+            var diagnostic = Assert.Single(documentNode.Diagnostics);
+            Assert.Equal(expectedDiagnostic, diagnostic);
+        }
+
+        [Fact]
+        public void RazorPageDocumentClassifierPass_DoesNotLogErrorIfCommentAndWhitespaceBeforeDirective()
+        {
+            // Arrange
+            var content = @"
+@* some comment *@
+     
+@page
+";
+            var codeDocument = RazorCodeDocument.Create(RazorSourceDocument.Create(content, "Test.cshtml"));
+
+            var engine = CreateEngine();
+            var irDocument = CreateIRDocument(engine, codeDocument);
+            var pass = new RazorPageDocumentClassifierPass
+            {
+                Engine = engine
+            };
+
+            // Act
+            pass.Execute(codeDocument, irDocument);
+            var visitor = new Visitor();
+            visitor.Visit(irDocument);
+
+            // Assert
+            var documentNode = codeDocument.GetDocumentIntermediateNode();
+            Assert.Empty(documentNode.Diagnostics);
+        }
+
         [Fact]
         public void RazorPageDocumentClassifierPass_SetsDocumentKind()
         {

test/Microsoft.AspNetCore.Mvc.Razor.Extensions.Test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective.cshtml

@@ -0,0 +1,2 @@
+<div>Some text here.</div>
+@page

test/Microsoft.AspNetCore.Mvc.Razor.Extensions.Test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective_DesignTime.codegen.cs

@@ -0,0 +1,42 @@
+// <auto-generated/>
+#pragma warning disable 1591
+namespace AspNetCore
+{
+    #line hidden
+    using TModel = global::System.Object;
+    using System;
+    using System.Collections.Generic;
+    using System.Linq;
+    using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Mvc;
+    using Microsoft.AspNetCore.Mvc.Rendering;
+    using Microsoft.AspNetCore.Mvc.ViewFeatures;
+    public class TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective : global::Microsoft.AspNetCore.Mvc.RazorPages.Page
+    {
+        #pragma warning disable 219
+        private void __RazorDirectiveTokenHelpers__() {
+        }
+        #pragma warning restore 219
+        #pragma warning disable 0414
+        private static System.Object __o = null;
+        #pragma warning restore 0414
+        #pragma warning disable 1998
+        public async override global::System.Threading.Tasks.Task ExecuteAsync()
+        {
+        }
+        #pragma warning restore 1998
+        [global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
+        public global::Microsoft.AspNetCore.Mvc.ViewFeatures.IModelExpressionProvider ModelExpressionProvider { get; private set; }
+        [global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
+        public global::Microsoft.AspNetCore.Mvc.IUrlHelper Url { get; private set; }
+        [global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
+        public global::Microsoft.AspNetCore.Mvc.IViewComponentHelper Component { get; private set; }
+        [global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
+        public global::Microsoft.AspNetCore.Mvc.Rendering.IJsonHelper Json { get; private set; }
+        [global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
+        public global::Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective> Html { get; private set; }
+        public global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary<TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective> ViewData => (global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary<TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective>)PageContext?.ViewData;
+        public TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective Model => ViewData.Model;
+    }
+}
+#pragma warning restore 1591

test/Microsoft.AspNetCore.Mvc.Razor.Extensions.Test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective_DesignTime.diagnostics.txt

@@ -0,0 +1 @@
+TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective.cshtml(2,1): Error RZ3906: The '@page' directive must precede all other elements defined in a Razor file.

test/Microsoft.AspNetCore.Mvc.Razor.Extensions.Test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective_DesignTime.ir.txt

@@ -0,0 +1,46 @@
+Document - 
+    NamespaceDeclaration -  - AspNetCore
+        UsingDirective -  - TModel = global::System.Object
+        UsingDirective - (1:0,1 [12] ) - System
+        UsingDirective - (16:1,1 [32] ) - System.Collections.Generic
+        UsingDirective - (51:2,1 [17] ) - System.Linq
+        UsingDirective - (71:3,1 [28] ) - System.Threading.Tasks
+        UsingDirective - (102:4,1 [30] ) - Microsoft.AspNetCore.Mvc
+        UsingDirective - (135:5,1 [40] ) - Microsoft.AspNetCore.Mvc.Rendering
+        UsingDirective - (178:6,1 [43] ) - Microsoft.AspNetCore.Mvc.ViewFeatures
+        ClassDeclaration -  - public - TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective - global::Microsoft.AspNetCore.Mvc.RazorPages.Page - 
+            DesignTimeDirective - 
+                DirectiveToken - (231:7,8 [62] ) - global::Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel>
+                DirectiveToken - (294:7,71 [4] ) - Html
+                DirectiveToken - (308:8,8 [54] ) - global::Microsoft.AspNetCore.Mvc.Rendering.IJsonHelper
+                DirectiveToken - (363:8,63 [4] ) - Json
+                DirectiveToken - (377:9,8 [53] ) - global::Microsoft.AspNetCore.Mvc.IViewComponentHelper
+                DirectiveToken - (431:9,62 [9] ) - Component
+                DirectiveToken - (450:10,8 [43] ) - global::Microsoft.AspNetCore.Mvc.IUrlHelper
+                DirectiveToken - (494:10,52 [3] ) - Url
+                DirectiveToken - (507:11,8 [70] ) - global::Microsoft.AspNetCore.Mvc.ViewFeatures.IModelExpressionProvider
+                DirectiveToken - (578:11,79 [23] ) - ModelExpressionProvider
+                DirectiveToken - (617:12,14 [96] ) - Microsoft.AspNetCore.Mvc.Razor.TagHelpers.UrlResolutionTagHelper, Microsoft.AspNetCore.Mvc.Razor
+                DirectiveToken - (729:13,14 [87] ) - Microsoft.AspNetCore.Mvc.Razor.TagHelpers.HeadTagHelper, Microsoft.AspNetCore.Mvc.Razor
+                DirectiveToken - (832:14,14 [87] ) - Microsoft.AspNetCore.Mvc.Razor.TagHelpers.BodyTagHelper, Microsoft.AspNetCore.Mvc.Razor
+            CSharpCode - 
+                IntermediateToken -  - CSharp - #pragma warning disable 0414
+            CSharpCode - 
+                IntermediateToken -  - CSharp - private static System.Object __o = null;
+            CSharpCode - 
+                IntermediateToken -  - CSharp - #pragma warning restore 0414
+            MethodDeclaration -  - public async override - global::System.Threading.Tasks.Task - ExecuteAsync
+                HtmlContent - (0:0,0 [28] RazorPageWithNoLeadingPageDirective.cshtml)
+                    IntermediateToken - (0:0,0 [5] RazorPageWithNoLeadingPageDirective.cshtml) - Html - <div>
+                    IntermediateToken - (5:0,5 [15] RazorPageWithNoLeadingPageDirective.cshtml) - Html - Some text here.
+                    IntermediateToken - (20:0,20 [6] RazorPageWithNoLeadingPageDirective.cshtml) - Html - </div>
+                    IntermediateToken - (26:0,26 [2] RazorPageWithNoLeadingPageDirective.cshtml) - Html - \n
+            Inject - 
+            Inject - 
+            Inject - 
+            Inject - 
+            Inject - 
+            CSharpCode - 
+                IntermediateToken -  - CSharp - public global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary<TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective> ViewData => (global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary<TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective>)PageContext?.ViewData;
+            CSharpCode - 
+                IntermediateToken -  - CSharp - public TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective Model => ViewData.Model;

test/Microsoft.AspNetCore.Mvc.Razor.Extensions.Test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective_Runtime.codegen.cs

@@ -0,0 +1,41 @@
+#pragma checksum "TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective.cshtml" "{ff1816ec-aa5e-4d10-87f7-6f4963833460}" "1d35b023a80ffd4cbf92549aae24d6c47f4af7e5"
+// <auto-generated/>
+#pragma warning disable 1591
+[assembly: global::Microsoft.AspNetCore.Razor.Hosting.RazorCompiledItemAttribute(typeof(AspNetCore.TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective), @"mvc.1.0.razor-page", @"/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective.cshtml")]
+[assembly:global::Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.RazorPageAttribute(@"/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective.cshtml", typeof(AspNetCore.TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective), null)]
+namespace AspNetCore
+{
+    #line hidden
+    using System;
+    using System.Collections.Generic;
+    using System.Linq;
+    using System.Threading.Tasks;
+    using Microsoft.AspNetCore.Mvc;
+    using Microsoft.AspNetCore.Mvc.Rendering;
+    using Microsoft.AspNetCore.Mvc.ViewFeatures;
+    [global::Microsoft.AspNetCore.Razor.Hosting.RazorSourceChecksumAttribute(@"SHA1", @"1d35b023a80ffd4cbf92549aae24d6c47f4af7e5", @"/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective.cshtml")]
+    public class TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective : global::Microsoft.AspNetCore.Mvc.RazorPages.Page
+    {
+        #pragma warning disable 1998
+        public async override global::System.Threading.Tasks.Task ExecuteAsync()
+        {
+            BeginContext(0, 28, true);
+            WriteLiteral("<div>Some text here.</div>\r\n");
+            EndContext();
+        }
+        #pragma warning restore 1998
+        [global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
+        public global::Microsoft.AspNetCore.Mvc.ViewFeatures.IModelExpressionProvider ModelExpressionProvider { get; private set; }
+        [global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
+        public global::Microsoft.AspNetCore.Mvc.IUrlHelper Url { get; private set; }
+        [global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
+        public global::Microsoft.AspNetCore.Mvc.IViewComponentHelper Component { get; private set; }
+        [global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
+        public global::Microsoft.AspNetCore.Mvc.Rendering.IJsonHelper Json { get; private set; }
+        [global::Microsoft.AspNetCore.Mvc.Razor.Internal.RazorInjectAttribute]
+        public global::Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective> Html { get; private set; }
+        public global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary<TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective> ViewData => (global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary<TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective>)PageContext?.ViewData;
+        public TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective Model => ViewData.Model;
+    }
+}
+#pragma warning restore 1591

test/Microsoft.AspNetCore.Mvc.Razor.Extensions.Test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective_Runtime.diagnostics.txt

@@ -0,0 +1 @@
+TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective.cshtml(2,1): Error RZ3906: The '@page' directive must precede all other elements defined in a Razor file.

test/Microsoft.AspNetCore.Mvc.Razor.Extensions.Test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective_Runtime.ir.txt

@@ -0,0 +1,33 @@
+Document - 
+    RazorCompiledItemAttribute - 
+    CSharpCode - 
+        IntermediateToken -  - CSharp - [assembly:global::Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.RazorPageAttribute(@"/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective.cshtml", typeof(AspNetCore.TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective), null)]
+    NamespaceDeclaration -  - AspNetCore
+        UsingDirective - (1:0,1 [14] ) - System
+        UsingDirective - (16:1,1 [34] ) - System.Collections.Generic
+        UsingDirective - (51:2,1 [19] ) - System.Linq
+        UsingDirective - (71:3,1 [30] ) - System.Threading.Tasks
+        UsingDirective - (102:4,1 [32] ) - Microsoft.AspNetCore.Mvc
+        UsingDirective - (135:5,1 [42] ) - Microsoft.AspNetCore.Mvc.Rendering
+        UsingDirective - (178:6,1 [45] ) - Microsoft.AspNetCore.Mvc.ViewFeatures
+        RazorSourceChecksumAttribute - 
+        ClassDeclaration -  - public - TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective - global::Microsoft.AspNetCore.Mvc.RazorPages.Page - 
+            MethodDeclaration -  - public async override - global::System.Threading.Tasks.Task - ExecuteAsync
+                CSharpCode - 
+                    IntermediateToken -  - CSharp - BeginContext(0, 28, true);
+                HtmlContent - (0:0,0 [28] RazorPageWithNoLeadingPageDirective.cshtml)
+                    IntermediateToken - (0:0,0 [5] RazorPageWithNoLeadingPageDirective.cshtml) - Html - <div>
+                    IntermediateToken - (5:0,5 [15] RazorPageWithNoLeadingPageDirective.cshtml) - Html - Some text here.
+                    IntermediateToken - (20:0,20 [6] RazorPageWithNoLeadingPageDirective.cshtml) - Html - </div>
+                    IntermediateToken - (26:0,26 [2] RazorPageWithNoLeadingPageDirective.cshtml) - Html - \n
+                CSharpCode - 
+                    IntermediateToken -  - CSharp - EndContext();
+            Inject - 
+            Inject - 
+            Inject - 
+            Inject - 
+            Inject - 
+            CSharpCode - 
+                IntermediateToken -  - CSharp - public global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary<TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective> ViewData => (global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary<TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective>)PageContext?.ViewData;
+            CSharpCode - 
+                IntermediateToken -  - CSharp - public TestFiles_IntegrationTests_CodeGenerationIntegrationTest_RazorPageWithNoLeadingPageDirective Model => ViewData.Model;