From df22392996c0ac1e446e827257e789a37f215873 Mon Sep 17 00:00:00 2001
From: Ajay Bhargav Baaskaran <ajbaaska@microsoft.com>
Date: Wed, 27 Jun 2018 12:14:24 -0700
Subject: [PATCH] Convert CSharpImplicitExpressionTest

---
 .../Legacy/CSharpBlockTest.cs                 |   3 +-
 .../Legacy/CSharpImplicitExpressionTest.cs    | 358 +++++++++++-------
 .../Legacy/CodeParserTestBase.cs              |   9 +-
 .../NestedImplicitExpression.syntaxtree.txt   |  18 +
 ...tersThatAreValidIdentifiers.syntaxtree.txt |   5 +
 ...ssionTerminatedByWhitespace.syntaxtree.txt |   5 +
 ...otAtEOFInImplicitExpression.syntaxtree.txt |   7 +
 ...racterInImplicitExpression1.syntaxtree.txt |   7 +
 ...racterInImplicitExpression2.syntaxtree.txt |   7 +
 ...NotIncludeSemicolonAfterDot.syntaxtree.txt |   7 +
 ...lonAtEndOfDottedIdentifiers.syntaxtree.txt |   9 +
 ...dOfSimpleImplicitExpression.syntaxtree.txt |   5 +
 ...tifiersAsImplicitExpression.syntaxtree.txt |   9 +
 ...ImplicitExpression_Bracket1.syntaxtree.txt |   5 +
 ...mplicitExpression_Bracket10.syntaxtree.txt |  10 +
 ...plicitExpression_Bracket11.diagnostics.txt |   1 +
 ...mplicitExpression_Bracket11.syntaxtree.txt |  12 +
 ...mplicitExpression_Bracket12.syntaxtree.txt |  13 +
 ...mplicitExpression_Bracket13.syntaxtree.txt |  16 +
 ...mplicitExpression_Bracket14.syntaxtree.txt |  15 +
 ...mplicitExpression_Bracket15.syntaxtree.txt |  13 +
 ...mplicitExpression_Bracket16.syntaxtree.txt |  17 +
 ...ImplicitExpression_Bracket2.syntaxtree.txt |   5 +
 ...mplicitExpression_Bracket3.diagnostics.txt |   1 +
 ...ImplicitExpression_Bracket3.syntaxtree.txt |   7 +
 ...ImplicitExpression_Bracket4.syntaxtree.txt |   5 +
 ...mplicitExpression_Bracket5.diagnostics.txt |   1 +
 ...ImplicitExpression_Bracket5.syntaxtree.txt |   8 +
 ...ImplicitExpression_Bracket6.syntaxtree.txt |   9 +
 ...mplicitExpression_Bracket7.diagnostics.txt |   1 +
 ...ImplicitExpression_Bracket7.syntaxtree.txt |   7 +
 ...mplicitExpression_Bracket8.diagnostics.txt |   1 +
 ...ImplicitExpression_Bracket8.syntaxtree.txt |   9 +
 ...ImplicitExpression_Bracket9.syntaxtree.txt |   5 +
 ...atorImplicitExpression_Dot1.syntaxtree.txt |   5 +
 ...torImplicitExpression_Dot10.syntaxtree.txt |   8 +
 ...torImplicitExpression_Dot11.syntaxtree.txt |   5 +
 ...torImplicitExpression_Dot12.syntaxtree.txt |  13 +
 ...torImplicitExpression_Dot13.syntaxtree.txt |  14 +
 ...torImplicitExpression_Dot14.syntaxtree.txt |  18 +
 ...atorImplicitExpression_Dot2.syntaxtree.txt |   5 +
 ...atorImplicitExpression_Dot3.syntaxtree.txt |   5 +
 ...atorImplicitExpression_Dot4.syntaxtree.txt |   5 +
 ...atorImplicitExpression_Dot5.syntaxtree.txt |   7 +
 ...atorImplicitExpression_Dot6.syntaxtree.txt |   5 +
 ...atorImplicitExpression_Dot7.syntaxtree.txt |   7 +
 ...atorImplicitExpression_Dot8.syntaxtree.txt |   7 +
 ...atorImplicitExpression_Dot9.syntaxtree.txt |   8 +
 ...ntifierAsImplicitExpression.syntaxtree.txt |   5 +
 ...OrParenInImplicitExpression.syntaxtree.txt |   7 +
 ...duleTokenNotFollowedByBrace.syntaxtree.txt |   9 +
 ...IfEOFOccursAfterTransition.diagnostics.txt |   1 +
 ...nIfEOFOccursAfterTransition.syntaxtree.txt |   5 +
 ...CharacterFollowsTransition.diagnostics.txt |   1 +
 ...dCharacterFollowsTransition.syntaxtree.txt |   5 +
 ...cesThemInImplicitExpression.syntaxtree.txt |  25 ++
 ...cesThemInImplicitExpression.syntaxtree.txt |  63 +++
 ...sBalancingParenthesesAtEOF.diagnostics.txt |   1 +
 ...psBalancingParenthesesAtEOF.syntaxtree.txt |   8 +
 ...nComplexImplicitExpressions.syntaxtree.txt |  39 ++
 ...licitExpressionAtHtmlEndTag.syntaxtree.txt |  11 +
 ...citExpressionAtHtmlStartTag.syntaxtree.txt |  11 +
 ...ntIfDotFollowedByWhitespace.syntaxtree.txt |   5 +
 ...dByIdentifierStartCharacter.syntaxtree.txt |  11 +
 ...arenFollowedByAnyWhiteSpace.syntaxtree.txt |   9 +
 ...fierFollowedByAnyWhiteSpace.syntaxtree.txt |   5 +
 66 files changed, 803 insertions(+), 140 deletions(-)
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/NestedImplicitExpression.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockAcceptsNonEnglishCharactersThatAreValidIdentifiers.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotAcceptSemicolonIfExpressionTerminatedByWhitespace.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotAtEOFInImplicitExpression.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression1.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression2.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeSemicolonAfterDot.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodIgnoresSemicolonAtEndOfDottedIdentifiers.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodIgnoresSemicolonAtEndOfSimpleImplicitExpression.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesDottedIdentifiersAsImplicitExpression.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket1.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket10.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket11.diagnostics.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket11.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket12.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket13.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket14.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket15.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket16.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket2.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket3.diagnostics.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket3.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket4.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket5.diagnostics.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket5.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket6.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket7.diagnostics.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket7.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket8.diagnostics.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket8.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket9.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot1.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot10.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot11.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot12.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot13.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot14.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot2.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot3.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot4.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot5.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot6.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot7.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot8.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot9.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesSingleIdentifierAsImplicitExpression.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodTerminatesAfterIdentifierUnlessFollowedByDotOrParenInImplicitExpression.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputExpressionIfModuleTokenNotFollowedByBrace.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfEOFOccursAfterTransition.diagnostics.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfEOFOccursAfterTransition.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfInvalidCharacterFollowsTransition.diagnostics.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfInvalidCharacterFollowsTransition.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockProperlyParsesBracketsAndBalancesThemInImplicitExpression.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockProperlyParsesParenthesesAndBalancesThemInImplicitExpression.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockStopsBalancingParenthesesAtEOF.diagnostics.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockStopsBalancingParenthesesAtEOF.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockSupportsSlashesWithinComplexImplicitExpressions.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtHtmlEndTag.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtHtmlStartTag.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtLastValidPointIfDotFollowedByWhitespace.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionBeforeDotIfDotNotFollowedByIdentifierStartCharacter.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionIfCloseParenFollowedByAnyWhiteSpace.syntaxtree.txt
 create mode 100644 test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionIfIdentifierFollowedByAnyWhiteSpace.syntaxtree.txt

diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CSharpBlockTest.cs b/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CSharpBlockTest.cs
index 32755fcbfd..04d75c98c5 100644
--- a/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CSharpBlockTest.cs
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CSharpBlockTest.cs
@@ -101,8 +101,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
         [Fact]
         public void ParseBlockTerminatesParenBalancingAtEOF()
         {
-            ImplicitExpressionTest(
-                "Html.En(code()", "Html.En(code()");
+            ImplicitExpressionTest("Html.En(code()");
         }
 
         [Fact]
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CSharpImplicitExpressionTest.cs b/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CSharpImplicitExpressionTest.cs
index 3a013a6ec8..7c00bbeaa1 100644
--- a/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CSharpImplicitExpressionTest.cs
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CSharpImplicitExpressionTest.cs
@@ -1,146 +1,249 @@
 // 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 Xunit;
 
 namespace Microsoft.AspNetCore.Razor.Language.Legacy
 {
     public class CSharpImplicitExpressionTest : CsHtmlCodeParserTestBase
     {
-        private const string TestExtraKeyword = "model";
-
-        public static TheoryData NullConditionalOperatorData_Bracket
+        public CSharpImplicitExpressionTest()
         {
-            get
-            {
-                var noErrors = new RazorDiagnostic[0];
-                Func<int, RazorDiagnostic[]> missingEndBracketError = (index) =>
-                    new RazorDiagnostic[1]
-                    {
-                        RazorDiagnosticFactory.CreateParsing_ExpectedCloseBracketBeforeEOF(
-                            new SourceSpan(new SourceLocation(index, 0, index), contentLength: 1), "[", "]"),
-                    };
-
-                // implicitExpression, expectedImplicitExpression, acceptedCharacters, expectedErrors
-                return new TheoryData<string, string, AcceptedCharactersInternal, RazorDiagnostic[]>
-                {
-                    { "val??[", "val", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                    { "val??[0", "val", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                    { "val?[", "val?[", AcceptedCharactersInternal.Any, missingEndBracketError(5) },
-                    { "val?(", "val", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                    { "val?[more", "val?[more", AcceptedCharactersInternal.Any, missingEndBracketError(5) },
-                    { "val?[0]", "val?[0]", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                    { "val?[<p>", "val?[", AcceptedCharactersInternal.Any, missingEndBracketError(5) },
-                    { "val?[more.<p>", "val?[more.", AcceptedCharactersInternal.Any, missingEndBracketError(5) },
-                    { "val??[more<p>", "val", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                    { "val?[-1]?", "val?[-1]", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                    { "val?[abc]?[def", "val?[abc]?[def", AcceptedCharactersInternal.Any, missingEndBracketError(11) },
-                    { "val?[abc]?[2]", "val?[abc]?[2]", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                    { "val?[abc]?.more?[def]", "val?[abc]?.more?[def]", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                    { "val?[abc]?.more?.abc", "val?[abc]?.more?.abc", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                    { "val?[null ?? true]", "val?[null ?? true]", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                    { "val?[abc?.gef?[-1]]", "val?[abc?.gef?[-1]]", AcceptedCharactersInternal.NonWhiteSpace, noErrors },
-                };
-            }
+            UseBaselineTests = true;
         }
 
-        [Theory]
-        [MemberData(nameof(NullConditionalOperatorData_Bracket))]
-        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket(
-            string implicitExpresison,
-            string expectedImplicitExpression,
-            object acceptedCharacters,
-            object expectedErrors)
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket1()
         {
             // Act & Assert
-            ImplicitExpressionTest(
-                implicitExpresison,
-                expectedImplicitExpression,
-                (AcceptedCharactersInternal)acceptedCharacters,
-                (RazorDiagnostic[])expectedErrors);
+            ImplicitExpressionTest("val??[");
         }
 
-        public static TheoryData NullConditionalOperatorData_Dot
-        {
-            get
-            {
-                // implicitExpression, expectedImplicitExpression
-                return new TheoryData<string, string>
-                {
-                    { "val?", "val" },
-                    { "val??", "val" },
-                    { "val??more", "val" },
-                    { "val?!", "val" },
-                    { "val?.", "val?." },
-                    { "val??.", "val" },
-                    { "val?.(abc)", "val?." },
-                    { "val?.<p>", "val?." },
-                    { "val?.more", "val?.more" },
-                    { "val?.more<p>", "val?.more" },
-                    { "val??.more<p>", "val" },
-                    { "val?.more(false)?.<p>", "val?.more(false)?." },
-                    { "val?.more(false)?.abc", "val?.more(false)?.abc" },
-                    { "val?.more(null ?? true)?.abc", "val?.more(null ?? true)?.abc" },
-                };
-            }
-        }
-
-        [Theory]
-        [MemberData(nameof(NullConditionalOperatorData_Dot))]
-        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot(
-            string implicitExpresison,
-            string expectedImplicitExpression)
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket2()
         {
             // Act & Assert
-            ImplicitExpressionTest(implicitExpresison, expectedImplicitExpression);
+            ImplicitExpressionTest("val??[0");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket3()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket4()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?(");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket5()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[more");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket6()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[0]");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket7()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[<p>");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket8()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[more.<p>");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket9()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val??[more<p>");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket10()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[-1]?");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket11()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[abc]?[def");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket12()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[abc]?[2]");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket13()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[abc]?.more?[def]");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket14()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[abc]?.more?.abc");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket15()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[null ?? true]");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket16()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?[abc?.gef?[-1]]");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot1()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot2()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val??");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot3()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val??more");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot4()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?!");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot5()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?.");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot6()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val??.");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot7()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?.(abc)");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot8()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?.<p>");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot9()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?.more");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot10()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?.more<p>");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot11()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val??.more<p>");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot12()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?.more(false)?.<p>");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot13()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?.more(false)?.abc");
+        }
+
+        [Fact]
+        public void ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot14()
+        {
+            // Act & Assert
+            ImplicitExpressionTest("val?.more(null ?? true)?.abc");
         }
 
         [Fact]
         public void NestedImplicitExpression()
         {
-            ParseBlockTest("if (true) { @foo }",
-                           new StatementBlock(
-                               Factory.Code("if (true) { ").AsStatement(),
-                               new ExpressionBlock(
-                                   Factory.CodeTransition(),
-                                   Factory.Code("foo")
-                                       .AsImplicitExpression(CSharpCodeParser.DefaultKeywords, acceptTrailingDot: true)
-                                       .Accepts(AcceptedCharactersInternal.NonWhiteSpace)),
-                               Factory.Code(" }").AsStatement()));
+            ParseBlockTest("if (true) { @foo }");
         }
 
         [Fact]
         public void ParseBlockAcceptsNonEnglishCharactersThatAreValidIdentifiers()
         {
-            ImplicitExpressionTest("हळूँजद॔.", "हळूँजद॔");
+            ImplicitExpressionTest("हळूँजद॔.");
         }
 
         [Fact]
         public void ParseBlockOutputsZeroLengthCodeSpanIfInvalidCharacterFollowsTransition()
         {
-            ParseBlockTest("@/",
-                           new ExpressionBlock(
-                               Factory.CodeTransition(),
-                               Factory.EmptyCSharp()
-                                   .AsImplicitExpression(KeywordSet)
-                                   .Accepts(AcceptedCharactersInternal.NonWhiteSpace)),
-                           RazorDiagnosticFactory.CreateParsing_UnexpectedCharacterAtStartOfCodeBlock(
-                                new SourceSpan(new SourceLocation(1, 0, 1), contentLength: 1),
-                                "/"));
+            ParseBlockTest("@/");
         }
 
         [Fact]
         public void ParseBlockOutputsZeroLengthCodeSpanIfEOFOccursAfterTransition()
         {
-            ParseBlockTest("@",
-                           new ExpressionBlock(
-                               Factory.CodeTransition(),
-                               Factory.EmptyCSharp()
-                                   .AsImplicitExpression(KeywordSet)
-                                   .Accepts(AcceptedCharactersInternal.NonWhiteSpace)),
-                           RazorDiagnosticFactory.CreateParsing_UnexpectedEndOfFileAtStartOfCodeBlock(
-                                new SourceSpan(new SourceLocation(1, 0, 1), contentLength: 1)));
+            ParseBlockTest("@");
         }
 
         [Fact]
@@ -158,7 +261,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
         [Fact]
         public void ParseBlockMethodDoesNotAcceptSemicolonIfExpressionTerminatedByWhitespace()
         {
-            ImplicitExpressionTest("foo ;", "foo");
+            ImplicitExpressionTest("foo ;");
         }
 
         [Fact]
@@ -182,26 +285,31 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
         [Fact]
         public void ParseBlockMethodDoesNotIncludeDotAtEOFInImplicitExpression()
         {
-            ImplicitExpressionTest("foo.bar.", "foo.bar");
+            ImplicitExpressionTest("foo.bar.");
         }
 
         [Fact]
-        public void ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression()
+        public void ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression1()
         {
-            ImplicitExpressionTest("foo.bar.0", "foo.bar");
-            ImplicitExpressionTest("foo.bar.</p>", "foo.bar");
+            ImplicitExpressionTest("foo.bar.0");
+        }
+
+        [Fact]
+        public void ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression2()
+        {
+            ImplicitExpressionTest("foo.bar.</p>");
         }
 
         [Fact]
         public void ParseBlockMethodDoesNotIncludeSemicolonAfterDot()
         {
-            ImplicitExpressionTest("foo.bar.;", "foo.bar");
+            ImplicitExpressionTest("foo.bar.;");
         }
 
         [Fact]
         public void ParseBlockMethodTerminatesAfterIdentifierUnlessFollowedByDotOrParenInImplicitExpression()
         {
-            ImplicitExpressionTest("foo.bar</p>", "foo.bar");
+            ImplicitExpressionTest("foo.bar</p>");
         }
 
         [Fact]
@@ -219,47 +327,43 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
         [Fact]
         public void ParseBlockTerminatesImplicitExpressionAtHtmlEndTag()
         {
-            ImplicitExpressionTest("foo().bar.baz</p>zoop", "foo().bar.baz");
+            ImplicitExpressionTest("foo().bar.baz</p>zoop");
         }
 
         [Fact]
         public void ParseBlockTerminatesImplicitExpressionAtHtmlStartTag()
         {
-            ImplicitExpressionTest("foo().bar.baz<p>zoop", "foo().bar.baz");
+            ImplicitExpressionTest("foo().bar.baz<p>zoop");
         }
 
         [Fact]
         public void ParseBlockTerminatesImplicitExpressionBeforeDotIfDotNotFollowedByIdentifierStartCharacter()
         {
-            ImplicitExpressionTest("foo().bar.baz.42", "foo().bar.baz");
+            ImplicitExpressionTest("foo().bar.baz.42");
         }
 
         [Fact]
         public void ParseBlockStopsBalancingParenthesesAtEOF()
         {
-            ImplicitExpressionTest(
-                "foo(()", "foo(()",
-                acceptedCharacters: AcceptedCharactersInternal.Any,
-                errors: RazorDiagnosticFactory.CreateParsing_ExpectedCloseBracketBeforeEOF(
-                    new SourceSpan(new SourceLocation(4, 0, 4), contentLength: 1), "(", ")"));
+            ImplicitExpressionTest("foo(()");
         }
 
         [Fact]
         public void ParseBlockTerminatesImplicitExpressionIfCloseParenFollowedByAnyWhiteSpace()
         {
-            ImplicitExpressionTest("foo.bar() (baz)", "foo.bar()");
+            ImplicitExpressionTest("foo.bar() (baz)");
         }
 
         [Fact]
         public void ParseBlockTerminatesImplicitExpressionIfIdentifierFollowedByAnyWhiteSpace()
         {
-            ImplicitExpressionTest("foo .bar() (baz)", "foo");
+            ImplicitExpressionTest("foo .bar() (baz)");
         }
 
         [Fact]
         public void ParseBlockTerminatesImplicitExpressionAtLastValidPointIfDotFollowedByWhitespace()
         {
-            ImplicitExpressionTest("foo. bar() (baz)", "foo");
+            ImplicitExpressionTest("foo. bar() (baz)");
         }
 
         [Fact]
@@ -270,13 +374,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
 
         private void RunTrailingSemicolonTest(string expr)
         {
-            ParseBlockTest(SyntaxConstants.TransitionString + expr + ";",
-                           new ExpressionBlock(
-                               Factory.CodeTransition(),
-                               Factory.Code(expr)
-                                   .AsImplicitExpression(KeywordSet)
-                                   .Accepts(AcceptedCharactersInternal.NonWhiteSpace)
-                               ));
+            ParseBlockTest(SyntaxConstants.TransitionString + expr + ";");
         }
     }
 }
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CodeParserTestBase.cs b/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CodeParserTestBase.cs
index 923a25a441..6437faa292 100644
--- a/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CodeParserTestBase.cs
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/Legacy/CodeParserTestBase.cs
@@ -66,14 +66,7 @@ namespace Microsoft.AspNetCore.Razor.Language.Legacy
 
         internal void ImplicitExpressionTest(string input, string expected, AcceptedCharactersInternal acceptedCharacters, params RazorDiagnostic[] errors)
         {
-            var factory = CreateSpanFactory();
-            ParseBlockTest(SyntaxConstants.TransitionString + input,
-                           new ExpressionBlock(
-                               factory.CodeTransition(),
-                               factory.Code(expected)
-                                   .AsImplicitExpression(KeywordSet)
-                                   .Accepts(acceptedCharacters)),
-                           errors);
+            ParseBlockTest(SyntaxConstants.TransitionString + input);
         }
     }
 }
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/NestedImplicitExpression.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/NestedImplicitExpression.syntaxtree.txt
new file mode 100644
index 0000000000..8f3b31118a
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/NestedImplicitExpression.syntaxtree.txt
@@ -0,0 +1,18 @@
+Statement block - Gen<None> - 18 - (0:0,0)
+    Code span - Gen<Stmt> - [if (true) { ] - SpanEditHandler;Accepts:Any - (0:0,0) - Symbols:8
+        CSharpSymbolType.Keyword;[if];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.Keyword;[true];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.LeftBrace;[{];
+        CSharpSymbolType.WhiteSpace;[ ];
+    Expression block - Gen<Expr> - 4 - (12:0,12)
+        Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (12:0,12) - Symbols:1
+            CSharpSymbolType.Transition;[@];
+        Code span - Gen<Expr> - [foo] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[ATD];K14 - (13:0,13) - Symbols:1
+            CSharpSymbolType.Identifier;[foo];
+    Code span - Gen<Stmt> - [ }] - SpanEditHandler;Accepts:Any - (16:0,16) - Symbols:2
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.RightBrace;[}];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockAcceptsNonEnglishCharactersThatAreValidIdentifiers.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockAcceptsNonEnglishCharactersThatAreValidIdentifiers.syntaxtree.txt
new file mode 100644
index 0000000000..b5629747fd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockAcceptsNonEnglishCharactersThatAreValidIdentifiers.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 8 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [हळूँजद॔] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[हळूँजद॔];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotAcceptSemicolonIfExpressionTerminatedByWhitespace.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotAcceptSemicolonIfExpressionTerminatedByWhitespace.syntaxtree.txt
new file mode 100644
index 0000000000..368cbec988
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotAcceptSemicolonIfExpressionTerminatedByWhitespace.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[foo];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotAtEOFInImplicitExpression.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotAtEOFInImplicitExpression.syntaxtree.txt
new file mode 100644
index 0000000000..1a5b3d317b
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotAtEOFInImplicitExpression.syntaxtree.txt
@@ -0,0 +1,7 @@
+Expression block - Gen<Expr> - 8 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo.bar] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:3
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression1.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression1.syntaxtree.txt
new file mode 100644
index 0000000000..1a5b3d317b
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression1.syntaxtree.txt
@@ -0,0 +1,7 @@
+Expression block - Gen<Expr> - 8 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo.bar] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:3
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression2.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression2.syntaxtree.txt
new file mode 100644
index 0000000000..1a5b3d317b
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeDotFollowedByInvalidIdentifierCharacterInImplicitExpression2.syntaxtree.txt
@@ -0,0 +1,7 @@
+Expression block - Gen<Expr> - 8 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo.bar] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:3
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeSemicolonAfterDot.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeSemicolonAfterDot.syntaxtree.txt
new file mode 100644
index 0000000000..1a5b3d317b
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodDoesNotIncludeSemicolonAfterDot.syntaxtree.txt
@@ -0,0 +1,7 @@
+Expression block - Gen<Expr> - 8 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo.bar] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:3
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodIgnoresSemicolonAtEndOfDottedIdentifiers.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodIgnoresSemicolonAtEndOfDottedIdentifiers.syntaxtree.txt
new file mode 100644
index 0000000000..d523e84810
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodIgnoresSemicolonAtEndOfDottedIdentifiers.syntaxtree.txt
@@ -0,0 +1,9 @@
+Expression block - Gen<Expr> - 12 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo.bar.baz] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:5
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[baz];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodIgnoresSemicolonAtEndOfSimpleImplicitExpression.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodIgnoresSemicolonAtEndOfSimpleImplicitExpression.syntaxtree.txt
new file mode 100644
index 0000000000..368cbec988
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodIgnoresSemicolonAtEndOfSimpleImplicitExpression.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[foo];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesDottedIdentifiersAsImplicitExpression.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesDottedIdentifiersAsImplicitExpression.syntaxtree.txt
new file mode 100644
index 0000000000..d523e84810
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesDottedIdentifiersAsImplicitExpression.syntaxtree.txt
@@ -0,0 +1,9 @@
+Expression block - Gen<Expr> - 12 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo.bar.baz] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:5
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[baz];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket1.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket1.syntaxtree.txt
new file mode 100644
index 0000000000..d123ee18bd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket1.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[val];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket10.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket10.syntaxtree.txt
new file mode 100644
index 0000000000..57d0b46d99
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket10.syntaxtree.txt
@@ -0,0 +1,10 @@
+Expression block - Gen<Expr> - 9 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[-1]] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:6
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Minus;[-];
+        CSharpSymbolType.IntegerLiteral;[1];
+        CSharpSymbolType.RightBracket;[]];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket11.diagnostics.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket11.diagnostics.txt
new file mode 100644
index 0000000000..a6129d65d7
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket11.diagnostics.txt
@@ -0,0 +1 @@
+(1,12): Error RZ1027: An opening "[" is missing the corresponding closing "]".
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket11.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket11.syntaxtree.txt
new file mode 100644
index 0000000000..a24dd4c31d
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket11.syntaxtree.txt
@@ -0,0 +1,12 @@
+Expression block - Gen<Expr> - 15 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[abc]?[def] - ImplicitExpressionEditHandler;Accepts:Any;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:8
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Identifier;[abc];
+        CSharpSymbolType.RightBracket;[]];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Identifier;[def];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket12.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket12.syntaxtree.txt
new file mode 100644
index 0000000000..e66d54706b
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket12.syntaxtree.txt
@@ -0,0 +1,13 @@
+Expression block - Gen<Expr> - 14 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[abc]?[2]] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:9
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Identifier;[abc];
+        CSharpSymbolType.RightBracket;[]];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.IntegerLiteral;[2];
+        CSharpSymbolType.RightBracket;[]];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket13.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket13.syntaxtree.txt
new file mode 100644
index 0000000000..967b311fc0
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket13.syntaxtree.txt
@@ -0,0 +1,16 @@
+Expression block - Gen<Expr> - 22 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[abc]?.more?[def]] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:12
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Identifier;[abc];
+        CSharpSymbolType.RightBracket;[]];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[more];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Identifier;[def];
+        CSharpSymbolType.RightBracket;[]];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket14.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket14.syntaxtree.txt
new file mode 100644
index 0000000000..2e273fbbca
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket14.syntaxtree.txt
@@ -0,0 +1,15 @@
+Expression block - Gen<Expr> - 21 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[abc]?.more?.abc] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:11
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Identifier;[abc];
+        CSharpSymbolType.RightBracket;[]];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[more];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[abc];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket15.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket15.syntaxtree.txt
new file mode 100644
index 0000000000..a6398e5589
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket15.syntaxtree.txt
@@ -0,0 +1,13 @@
+Expression block - Gen<Expr> - 19 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[null ?? true]] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:9
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Keyword;[null];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.NullCoalesce;[??];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Keyword;[true];
+        CSharpSymbolType.RightBracket;[]];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket16.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket16.syntaxtree.txt
new file mode 100644
index 0000000000..d009d78db8
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket16.syntaxtree.txt
@@ -0,0 +1,17 @@
+Expression block - Gen<Expr> - 20 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[abc?.gef?[-1]]] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:13
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Identifier;[abc];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[gef];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Minus;[-];
+        CSharpSymbolType.IntegerLiteral;[1];
+        CSharpSymbolType.RightBracket;[]];
+        CSharpSymbolType.RightBracket;[]];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket2.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket2.syntaxtree.txt
new file mode 100644
index 0000000000..d123ee18bd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket2.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[val];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket3.diagnostics.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket3.diagnostics.txt
new file mode 100644
index 0000000000..34f020b41b
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket3.diagnostics.txt
@@ -0,0 +1 @@
+(1,6): Error RZ1027: An opening "[" is missing the corresponding closing "]".
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket3.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket3.syntaxtree.txt
new file mode 100644
index 0000000000..b96658c322
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket3.syntaxtree.txt
@@ -0,0 +1,7 @@
+Expression block - Gen<Expr> - 6 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[] - ImplicitExpressionEditHandler;Accepts:Any;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:3
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket4.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket4.syntaxtree.txt
new file mode 100644
index 0000000000..d123ee18bd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket4.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[val];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket5.diagnostics.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket5.diagnostics.txt
new file mode 100644
index 0000000000..34f020b41b
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket5.diagnostics.txt
@@ -0,0 +1 @@
+(1,6): Error RZ1027: An opening "[" is missing the corresponding closing "]".
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket5.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket5.syntaxtree.txt
new file mode 100644
index 0000000000..2e6a035938
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket5.syntaxtree.txt
@@ -0,0 +1,8 @@
+Expression block - Gen<Expr> - 10 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[more] - ImplicitExpressionEditHandler;Accepts:Any;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:4
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Identifier;[more];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket6.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket6.syntaxtree.txt
new file mode 100644
index 0000000000..58bc580be4
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket6.syntaxtree.txt
@@ -0,0 +1,9 @@
+Expression block - Gen<Expr> - 8 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[0]] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:5
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.IntegerLiteral;[0];
+        CSharpSymbolType.RightBracket;[]];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket7.diagnostics.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket7.diagnostics.txt
new file mode 100644
index 0000000000..34f020b41b
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket7.diagnostics.txt
@@ -0,0 +1 @@
+(1,6): Error RZ1027: An opening "[" is missing the corresponding closing "]".
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket7.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket7.syntaxtree.txt
new file mode 100644
index 0000000000..b96658c322
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket7.syntaxtree.txt
@@ -0,0 +1,7 @@
+Expression block - Gen<Expr> - 6 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[] - ImplicitExpressionEditHandler;Accepts:Any;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:3
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket8.diagnostics.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket8.diagnostics.txt
new file mode 100644
index 0000000000..34f020b41b
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket8.diagnostics.txt
@@ -0,0 +1 @@
+(1,6): Error RZ1027: An opening "[" is missing the corresponding closing "]".
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket8.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket8.syntaxtree.txt
new file mode 100644
index 0000000000..0dfa555f8a
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket8.syntaxtree.txt
@@ -0,0 +1,9 @@
+Expression block - Gen<Expr> - 11 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?[more.] - ImplicitExpressionEditHandler;Accepts:Any;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:5
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.Identifier;[more];
+        CSharpSymbolType.Dot;[.];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket9.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket9.syntaxtree.txt
new file mode 100644
index 0000000000..d123ee18bd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Bracket9.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[val];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot1.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot1.syntaxtree.txt
new file mode 100644
index 0000000000..d123ee18bd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot1.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[val];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot10.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot10.syntaxtree.txt
new file mode 100644
index 0000000000..0eaead0945
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot10.syntaxtree.txt
@@ -0,0 +1,8 @@
+Expression block - Gen<Expr> - 10 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?.more] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:4
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[more];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot11.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot11.syntaxtree.txt
new file mode 100644
index 0000000000..d123ee18bd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot11.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[val];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot12.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot12.syntaxtree.txt
new file mode 100644
index 0000000000..89110e1265
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot12.syntaxtree.txt
@@ -0,0 +1,13 @@
+Expression block - Gen<Expr> - 19 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?.more(false)?.] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:9
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[more];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.Keyword;[false];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot13.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot13.syntaxtree.txt
new file mode 100644
index 0000000000..0dedbf3852
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot13.syntaxtree.txt
@@ -0,0 +1,14 @@
+Expression block - Gen<Expr> - 22 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?.more(false)?.abc] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:10
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[more];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.Keyword;[false];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[abc];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot14.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot14.syntaxtree.txt
new file mode 100644
index 0000000000..5f69aab1bf
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot14.syntaxtree.txt
@@ -0,0 +1,18 @@
+Expression block - Gen<Expr> - 29 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?.more(null ?? true)?.abc] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:14
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[more];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.Keyword;[null];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.NullCoalesce;[??];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Keyword;[true];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[abc];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot2.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot2.syntaxtree.txt
new file mode 100644
index 0000000000..d123ee18bd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot2.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[val];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot3.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot3.syntaxtree.txt
new file mode 100644
index 0000000000..d123ee18bd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot3.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[val];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot4.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot4.syntaxtree.txt
new file mode 100644
index 0000000000..d123ee18bd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot4.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[val];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot5.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot5.syntaxtree.txt
new file mode 100644
index 0000000000..141b205dac
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot5.syntaxtree.txt
@@ -0,0 +1,7 @@
+Expression block - Gen<Expr> - 6 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?.] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:3
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot6.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot6.syntaxtree.txt
new file mode 100644
index 0000000000..d123ee18bd
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot6.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[val];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot7.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot7.syntaxtree.txt
new file mode 100644
index 0000000000..141b205dac
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot7.syntaxtree.txt
@@ -0,0 +1,7 @@
+Expression block - Gen<Expr> - 6 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?.] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:3
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot8.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot8.syntaxtree.txt
new file mode 100644
index 0000000000..141b205dac
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot8.syntaxtree.txt
@@ -0,0 +1,7 @@
+Expression block - Gen<Expr> - 6 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?.] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:3
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot9.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot9.syntaxtree.txt
new file mode 100644
index 0000000000..0eaead0945
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesNullConditionalOperatorImplicitExpression_Dot9.syntaxtree.txt
@@ -0,0 +1,8 @@
+Expression block - Gen<Expr> - 10 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [val?.more] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:4
+        CSharpSymbolType.Identifier;[val];
+        CSharpSymbolType.QuestionMark;[?];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[more];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesSingleIdentifierAsImplicitExpression.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesSingleIdentifierAsImplicitExpression.syntaxtree.txt
new file mode 100644
index 0000000000..368cbec988
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodParsesSingleIdentifierAsImplicitExpression.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[foo];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodTerminatesAfterIdentifierUnlessFollowedByDotOrParenInImplicitExpression.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodTerminatesAfterIdentifierUnlessFollowedByDotOrParenInImplicitExpression.syntaxtree.txt
new file mode 100644
index 0000000000..1a5b3d317b
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockMethodTerminatesAfterIdentifierUnlessFollowedByDotOrParenInImplicitExpression.syntaxtree.txt
@@ -0,0 +1,7 @@
+Expression block - Gen<Expr> - 8 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo.bar] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:3
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputExpressionIfModuleTokenNotFollowedByBrace.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputExpressionIfModuleTokenNotFollowedByBrace.syntaxtree.txt
new file mode 100644
index 0000000000..15553d9fec
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputExpressionIfModuleTokenNotFollowedByBrace.syntaxtree.txt
@@ -0,0 +1,9 @@
+Expression block - Gen<Expr> - 13 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [module.foo()] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:5
+        CSharpSymbolType.Identifier;[module];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.RightParenthesis;[)];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfEOFOccursAfterTransition.diagnostics.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfEOFOccursAfterTransition.diagnostics.txt
new file mode 100644
index 0000000000..c6d6925451
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfEOFOccursAfterTransition.diagnostics.txt
@@ -0,0 +1 @@
+(1,2): Error RZ1004: End-of-file was found after the "@" character.  "@" must be followed by a valid code block.  If you want to output an "@", escape it using the sequence: "@@"
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfEOFOccursAfterTransition.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfEOFOccursAfterTransition.syntaxtree.txt
new file mode 100644
index 0000000000..2ce6cbbd8a
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfEOFOccursAfterTransition.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 1 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Unknown;[];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfInvalidCharacterFollowsTransition.diagnostics.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfInvalidCharacterFollowsTransition.diagnostics.txt
new file mode 100644
index 0000000000..6d8d0cd1bb
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfInvalidCharacterFollowsTransition.diagnostics.txt
@@ -0,0 +1 @@
+(1,2): Error RZ1005: "/" is not valid at the start of a code block.  Only identifiers, keywords, comments, "(" and "{" are valid.
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfInvalidCharacterFollowsTransition.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfInvalidCharacterFollowsTransition.syntaxtree.txt
new file mode 100644
index 0000000000..2ce6cbbd8a
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockOutputsZeroLengthCodeSpanIfInvalidCharacterFollowsTransition.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 1 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Unknown;[];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockProperlyParsesBracketsAndBalancesThemInImplicitExpression.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockProperlyParsesBracketsAndBalancesThemInImplicitExpression.syntaxtree.txt
new file mode 100644
index 0000000000..e128b8b59d
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockProperlyParsesBracketsAndBalancesThemInImplicitExpression.syntaxtree.txt
@@ -0,0 +1,25 @@
+Expression block - Gen<Expr> - 34 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo.bar[4 * (8 + 7)]["fo\"o"].baz] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:21
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.IntegerLiteral;[4];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Star;[*];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.IntegerLiteral;[8];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Plus;[+];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.IntegerLiteral;[7];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.RightBracket;[]];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.StringLiteral;["fo\"o"];
+        CSharpSymbolType.RightBracket;[]];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[baz];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockProperlyParsesParenthesesAndBalancesThemInImplicitExpression.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockProperlyParsesParenthesesAndBalancesThemInImplicitExpression.syntaxtree.txt
new file mode 100644
index 0000000000..5367db8cc1
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockProperlyParsesParenthesesAndBalancesThemInImplicitExpression.syntaxtree.txt
@@ -0,0 +1,63 @@
+Expression block - Gen<Expr> - 115 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo().bar("bi\"z", 4)("chained method; call").baz(@"bo""z", '\'', () => { return 4; }, (4+5+new { foo = bar[4] }))] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:59
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.StringLiteral;["bi\"z"];
+        CSharpSymbolType.Comma;[,];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.IntegerLiteral;[4];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.StringLiteral;["chained method; call"];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[baz];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.StringLiteral;[@"bo""z"];
+        CSharpSymbolType.Comma;[,];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.CharacterLiteral;['\''];
+        CSharpSymbolType.Comma;[,];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.GreaterThanEqual;[=>];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.LeftBrace;[{];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Keyword;[return];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.IntegerLiteral;[4];
+        CSharpSymbolType.Semicolon;[;];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.RightBrace;[}];
+        CSharpSymbolType.Comma;[,];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.IntegerLiteral;[4];
+        CSharpSymbolType.Plus;[+];
+        CSharpSymbolType.IntegerLiteral;[5];
+        CSharpSymbolType.Plus;[+];
+        CSharpSymbolType.Keyword;[new];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.LeftBrace;[{];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Assign;[=];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Identifier;[bar];
+        CSharpSymbolType.LeftBracket;[[];
+        CSharpSymbolType.IntegerLiteral;[4];
+        CSharpSymbolType.RightBracket;[]];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.RightBrace;[}];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.RightParenthesis;[)];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockStopsBalancingParenthesesAtEOF.diagnostics.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockStopsBalancingParenthesesAtEOF.diagnostics.txt
new file mode 100644
index 0000000000..ade6c85b25
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockStopsBalancingParenthesesAtEOF.diagnostics.txt
@@ -0,0 +1 @@
+(1,5): Error RZ1027: An opening "(" is missing the corresponding closing ")".
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockStopsBalancingParenthesesAtEOF.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockStopsBalancingParenthesesAtEOF.syntaxtree.txt
new file mode 100644
index 0000000000..0c5b1d37b3
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockStopsBalancingParenthesesAtEOF.syntaxtree.txt
@@ -0,0 +1,8 @@
+Expression block - Gen<Expr> - 7 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo(()] - ImplicitExpressionEditHandler;Accepts:Any;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:4
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.RightParenthesis;[)];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockSupportsSlashesWithinComplexImplicitExpressions.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockSupportsSlashesWithinComplexImplicitExpressions.syntaxtree.txt
new file mode 100644
index 0000000000..6e2ba2e015
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockSupportsSlashesWithinComplexImplicitExpressions.syntaxtree.txt
@@ -0,0 +1,39 @@
+Expression block - Gen<Expr> - 103 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [DataGridColumn.Template("Years of Service", e => (int)Math.Round((DateTime.Now - dt).TotalDays / 365))] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:35
+        CSharpSymbolType.Identifier;[DataGridColumn];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[Template];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.StringLiteral;["Years of Service"];
+        CSharpSymbolType.Comma;[,];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Identifier;[e];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.GreaterThanEqual;[=>];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.Keyword;[int];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.Identifier;[Math];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[Round];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.Identifier;[DateTime];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[Now];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Minus;[-];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Identifier;[dt];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[TotalDays];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.Slash;[/];
+        CSharpSymbolType.WhiteSpace;[ ];
+        CSharpSymbolType.IntegerLiteral;[365];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.RightParenthesis;[)];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtHtmlEndTag.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtHtmlEndTag.syntaxtree.txt
new file mode 100644
index 0000000000..1a9757cdf3
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtHtmlEndTag.syntaxtree.txt
@@ -0,0 +1,11 @@
+Expression block - Gen<Expr> - 14 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo().bar.baz] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:7
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[baz];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtHtmlStartTag.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtHtmlStartTag.syntaxtree.txt
new file mode 100644
index 0000000000..1a9757cdf3
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtHtmlStartTag.syntaxtree.txt
@@ -0,0 +1,11 @@
+Expression block - Gen<Expr> - 14 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo().bar.baz] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:7
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[baz];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtLastValidPointIfDotFollowedByWhitespace.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtLastValidPointIfDotFollowedByWhitespace.syntaxtree.txt
new file mode 100644
index 0000000000..368cbec988
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionAtLastValidPointIfDotFollowedByWhitespace.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[foo];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionBeforeDotIfDotNotFollowedByIdentifierStartCharacter.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionBeforeDotIfDotNotFollowedByIdentifierStartCharacter.syntaxtree.txt
new file mode 100644
index 0000000000..1a9757cdf3
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionBeforeDotIfDotNotFollowedByIdentifierStartCharacter.syntaxtree.txt
@@ -0,0 +1,11 @@
+Expression block - Gen<Expr> - 14 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo().bar.baz] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:7
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.RightParenthesis;[)];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[baz];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionIfCloseParenFollowedByAnyWhiteSpace.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionIfCloseParenFollowedByAnyWhiteSpace.syntaxtree.txt
new file mode 100644
index 0000000000..9e5423ea30
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionIfCloseParenFollowedByAnyWhiteSpace.syntaxtree.txt
@@ -0,0 +1,9 @@
+Expression block - Gen<Expr> - 10 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo.bar()] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:5
+        CSharpSymbolType.Identifier;[foo];
+        CSharpSymbolType.Dot;[.];
+        CSharpSymbolType.Identifier;[bar];
+        CSharpSymbolType.LeftParenthesis;[(];
+        CSharpSymbolType.RightParenthesis;[)];
diff --git a/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionIfIdentifierFollowedByAnyWhiteSpace.syntaxtree.txt b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionIfIdentifierFollowedByAnyWhiteSpace.syntaxtree.txt
new file mode 100644
index 0000000000..368cbec988
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Razor.Language.Test/TestFiles/ParserTests/CSharpImplicitExpressionTest/ParseBlockTerminatesImplicitExpressionIfIdentifierFollowedByAnyWhiteSpace.syntaxtree.txt
@@ -0,0 +1,5 @@
+Expression block - Gen<Expr> - 4 - (0:0,0)
+    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
+        CSharpSymbolType.Transition;[@];
+    Code span - Gen<Expr> - [foo] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (1:0,1) - Symbols:1
+        CSharpSymbolType.Identifier;[foo];