Module support fixes and improvements

Jint.Tests.Test262/Language/ModuleTests.cs

@@ -1,10 +1,4 @@
-using Jint.Runtime;
-using Jint.Runtime.Modules;
-using System;
-using System.IO;
-using System.Reflection;
 using Xunit;
-using Xunit.Sdk;
 
 namespace Jint.Tests.Test262.Language;
 
@@ -15,59 +9,22 @@ public class ModuleTests : Test262Test
     [MemberData(nameof(SourceFiles), "language\\module-code", true, Skip = "Skipped")]
     protected void ModuleCode(SourceFile sourceFile)
     {
-        RunModuleTest(sourceFile);
+        RunTestInternal(sourceFile);
     }
 
     [Theory(DisplayName = "language\\export")]
     [MemberData(nameof(SourceFiles), "language\\export", false)]
     [MemberData(nameof(SourceFiles), "language\\export", true, Skip = "Skipped")]
     protected void Export(SourceFile sourceFile)
     {
-        RunModuleTest(sourceFile);
+        RunTestInternal(sourceFile);
     }
 
     [Theory(DisplayName = "language\\import")]
     [MemberData(nameof(SourceFiles), "language\\import", false)]
     [MemberData(nameof(SourceFiles), "language\\import", true, Skip = "Skipped")]
     protected void Import(SourceFile sourceFile)
     {
-        RunModuleTest(sourceFile);
-    }
-
-    private static void RunModuleTest(SourceFile sourceFile)
-    {
-        if (sourceFile.Skip)
-        {
-            return;
-        }
-
-        var code = sourceFile.Code;
-
-        var options = new Options();
-        options.Host.Factory = _ => new ModuleTestHost();
-        options.EnableModules(Path.Combine(BasePath, "test"));
-
-        var engine = new Engine(options);
-
-        var negative = code.IndexOf("negative:", StringComparison.OrdinalIgnoreCase) != -1;
-        string lastError = null;
-
-        try
-        {
-            engine.LoadModule(sourceFile.FullPath);
-        }
-        catch (JavaScriptException ex)
-        {
-            lastError = ex.ToString();
-        }
-        catch (Exception ex)
-        {
-            lastError = ex.ToString();
-        }
-
-        if (!negative && !string.IsNullOrWhiteSpace(lastError))
-        {
-            throw new XunitException(lastError);
-        }
+        RunTestInternal(sourceFile);
     }
 }

Jint.Tests.Test262/SingleTest.cs

@@ -34,12 +34,12 @@ public void TestSingle()
 
             if (code.IndexOf("onlyStrict", StringComparison.Ordinal) < 0)
             {
-                RunTestCode(sourceFile.Source, code, strict: false);
+                RunTestCode(sourceFile.Source, code, strict: false, null);
             }
 
             if (code.IndexOf("noStrict", StringComparison.Ordinal) < 0)
             {
-                RunTestCode(sourceFile.Source, code, strict: true);
+                RunTestCode(sourceFile.Source, code, strict: true, null);
             }
         }
     }

Jint.Tests.Test262/Test262Test.cs

@@ -30,6 +30,8 @@ public abstract class Test262Test
 
         private static readonly HashSet<string> _strictSkips = new(StringComparer.OrdinalIgnoreCase);
 
+        private static readonly Regex _moduleFlagRegex = new Regex(@"flags:\s*?\[.*?module.*?]", RegexOptions.Compiled);
+
         static Test262Test()
         {
             //NOTE: The Date tests in test262 assume the local timezone is Pacific Standard Time
@@ -96,12 +98,19 @@ static Test262Test()
             }
         }
 
-        protected void RunTestCode(string fileName, string code, bool strict)
+        protected void RunTestCode(string fileName, string code, bool strict, string fullPath)
         {
-            var engine = new Engine(cfg => cfg
-                .LocalTimeZone(_pacificTimeZone)
-                .Strict(strict)
-            );
+            var module = _moduleFlagRegex.IsMatch(code);
+
+            var engine = new Engine(cfg =>
+            {
+                cfg.LocalTimeZone(_pacificTimeZone);
+                cfg.Strict(strict);
+                if (module)
+                {
+                    cfg.EnableModules(Path.Combine(BasePath, "test", Path.GetDirectoryName(fullPath)!));
+                }
+            });
 
             engine.Execute(Sources["sta.js"]);
             engine.Execute(Sources["assert.js"]);
@@ -162,7 +171,15 @@ protected void RunTestCode(string fileName, string code, bool strict)
             bool negative = code.IndexOf("negative:", StringComparison.Ordinal) > -1;
             try
             {
-                engine.Execute(new JavaScriptParser(code, new ParserOptions(fileName)).ParseScript());
+                if (module)
+                {
+                    engine.AddModule(fullPath, builder => builder.AddSource(code));
+                    engine.ImportModule(fullPath);
+                }
+                else
+                {
+                    engine.Execute(new JavaScriptParser(code, new ParserOptions(fileName)).ParseScript());
+                }
             }
             catch (JavaScriptException j)
             {
@@ -186,15 +203,15 @@ protected void RunTestInternal(SourceFile sourceFile)
                 return;
             }
 
-            if (sourceFile.Code.IndexOf("onlyStrict", StringComparison.Ordinal) < 0)
+            if (sourceFile.Code.IndexOf("onlyStrict", StringComparison.Ordinal) < 0 && !_moduleFlagRegex.IsMatch(sourceFile.Code))
             {
-                RunTestCode(sourceFile.Source, sourceFile.Code, strict: false);
+                RunTestCode(sourceFile.Source, sourceFile.Code, strict: false, fullPath: sourceFile.FullPath);
             }
 
             if (!_strictSkips.Contains(sourceFile.Source)
                 && sourceFile.Code.IndexOf("noStrict", StringComparison.Ordinal) < 0)
             {
-                RunTestCode(sourceFile.Source, sourceFile.Code, strict: true);
+                RunTestCode(sourceFile.Source, sourceFile.Code, strict: true, fullPath: sourceFile.FullPath);
             }
         }
 

Jint.Tests.Test262/test/skipped.json

@@ -310,6 +310,14 @@
         "source": "language/statements/class/subclass/builtin-objects/GeneratorFunction/regular-subclassing.js",
         "reason": "generators not implemented"
     },
+    {
+        "source": "language/module-code/instn-local-bndng-export-gen.js",
+        "reason": "generators not implemented"
+    },
+    {
+        "source": "language/module-code/instn-local-bndng-gen.js",
+        "reason": "generators not implemented"
+    },
 
     // Eval problems