Fix handling of trailing comma in import arguments (#430)

* update test suite

Author: lahma

src/Esprima/JavaScriptParser.cs

@@ -1739,16 +1739,18 @@ private ImportExpression ParseImportCall()
 
         _context.IsAssignmentTarget = previousIsAssignmentTarget;
 
-        if (!this.Match(")") && _tolerant)
-        {
-            this.TolerateUnexpectedToken(this.NextToken());
-        }
-        else
+        if (!this.Match(")"))
         {
             if (Match(","))
+            {
                 NextToken();
+            }
             this.Expect(")");
         }
+        else
+        {
+            NextToken();
+        }
 
         return Finalize(node, new ImportExpression(source, attributes));
     }

test/Esprima.Tests.Test262/Program.cs

@@ -82,7 +82,18 @@ public static async Task<int> Main(string[] args)
                     },
                     IsIgnored = file => file.Features.IndexOfAny(excludedFeatures.AsSpan()) != -1 || knownFailing.Contains(file.ToString()),
                     IsParseError = exception => exception is ParserException,
-                    ShouldThrow = file => file.NegativeTestCase?.Type == ExpectedErrorType.SyntaxError || file.NegativeTestCase?.Phase == TestingPhase.Parse,
+                    ShouldThrow = file =>
+                    {
+                        var negativeTestCase = file.NegativeTestCase;
+                        if (negativeTestCase is null)
+                        {
+                            return false;
+                        }
+
+                        return negativeTestCase.Type == ExpectedErrorType.SyntaxError
+                               && negativeTestCase.Phase != TestingPhase.Resolution
+                               && negativeTestCase.Phase != TestingPhase.Runtime;
+                    },
                     OnTestExecuted = _ => testTask.Increment(1)
                 };
 

test/Esprima.Tests.Test262/Test262Harness.settings.json

@@ -1,5 +1,5 @@
 {
-  "SuiteGitSha": "83a46bfe0e79aed8274a1b9f4beb0a2efa0b3533",
+  "SuiteGitSha": "2060494f280ba89d71a0f51d4ff171bafe476a05",
   //"SuiteDirectory": "//mnt/c/work/test262",
   "TargetPath": "./Generated",
   "Namespace": "Esprima.Tests.Test262",

test/Esprima.Tests.Test262/Test262Test.cs

@@ -6,10 +6,7 @@ public abstract partial class Test262Test
 {
     private JavaScriptParser BuildTestExecutor(Test262File file)
     {
-        var options = new ParserOptions()
-        {
-            Tolerant = false
-        };
+        var options = new ParserOptions() { Tolerant = false };
         return new JavaScriptParser(options);
     }
 
@@ -27,6 +24,15 @@ private static void ExecuteTest(JavaScriptParser parser, Test262File file)
 
     private partial bool ShouldThrow(Test262File testCase, bool strict)
     {
-        return testCase.NegativeTestCase?.Type == ExpectedErrorType.SyntaxError || testCase.NegativeTestCase?.Phase == TestingPhase.Parse;
+        var negativeTestCase = testCase.NegativeTestCase;
+
+        if (negativeTestCase is null)
+        {
+            return false;
+        }
+
+        return negativeTestCase.Type == ExpectedErrorType.SyntaxError
+               && negativeTestCase.Phase != TestingPhase.Resolution
+               && negativeTestCase.Phase != TestingPhase.Runtime;
     }
 }

test/Esprima.Tests.Test262/allow-list.txt

@@ -962,10 +962,6 @@ test/language/block-scope/syntax/redeclaration/var-redeclaration-attempt-after-g
 test/language/block-scope/syntax/redeclaration/var-redeclaration-attempt-after-generator.js(strict mode)
 test/language/block-scope/syntax/redeclaration/var-redeclaration-attempt-after-let.js(default)
 test/language/block-scope/syntax/redeclaration/var-redeclaration-attempt-after-let.js(strict mode)
-test/language/eval-code/direct/strict-caller-global.js(strict mode)
-test/language/eval-code/direct/var-env-global-lex-non-strict.js(default)
-test/language/eval-code/indirect/parse-failure-2.js(default)
-test/language/eval-code/indirect/parse-failure-2.js(strict mode)
 test/language/export/escaped-as-export-specifier.js(strict mode)
 test/language/export/escaped-from.js(strict mode)
 test/language/expressions/arrow-function/dstr/ary-ptrn-rest-init-ary.js(default)
@@ -1234,8 +1230,6 @@ test/language/expressions/tagged-template/invalid-escape-sequences.js(default)
 test/language/expressions/tagged-template/invalid-escape-sequences.js(strict mode)
 test/language/expressions/yield/rhs-template-middle.js(default)
 test/language/expressions/yield/rhs-template-middle.js(strict mode)
-test/language/global-code/decl-lex-restricted-global.js(default)
-test/language/global-code/decl-lex-restricted-global.js(strict mode)
 test/language/global-code/new.target-arrow.js(default)
 test/language/global-code/new.target-arrow.js(strict mode)
 test/language/identifier-resolution/static-init-invalid-await.js(default)
@@ -1244,6 +1238,11 @@ test/language/import/dup-bound-names.js(strict mode)
 test/language/import/escaped-as-import-specifier.js(strict mode)
 test/language/import/escaped-as-namespace-import.js(strict mode)
 test/language/import/escaped-from.js(strict mode)
+test/language/import/import-attributes/json-invalid.js(strict mode)
+test/language/import/import-attributes/json-named-bindings.js(strict mode)
+test/language/literals/boolean/false-with-unicode.js(default)
+test/language/literals/boolean/true-with-unicode.js(default)
+test/language/literals/null/null-with-unicode.js(default)
 test/language/literals/regexp/named-groups/forward-reference.js(default)
 test/language/literals/regexp/named-groups/forward-reference.js(strict mode)
 test/language/module-code/comment-multi-line-html-close.js(strict mode)
@@ -1276,28 +1275,6 @@ test/language/module-code/export-expname-from-unpaired-surrogate.js(strict mode)
 test/language/module-code/export-expname-import-unpaired-surrogate.js(strict mode)
 test/language/module-code/export-expname-string-binding.js(strict mode)
 test/language/module-code/export-expname-unpaired-surrogate.js(strict mode)
-test/language/module-code/instn-iee-err-ambiguous-as.js(strict mode)
-test/language/module-code/instn-iee-err-ambiguous.js(strict mode)
-test/language/module-code/instn-iee-err-circular-as.js(strict mode)
-test/language/module-code/instn-iee-err-circular.js(strict mode)
-test/language/module-code/instn-iee-err-dflt-thru-star-as.js(strict mode)
-test/language/module-code/instn-iee-err-dflt-thru-star.js(strict mode)
-test/language/module-code/instn-iee-err-not-found-as.js(strict mode)
-test/language/module-code/instn-iee-err-not-found.js(strict mode)
-test/language/module-code/instn-named-err-ambiguous-as.js(strict mode)
-test/language/module-code/instn-named-err-ambiguous.js(strict mode)
-test/language/module-code/instn-named-err-dflt-thru-star-as.js(strict mode)
-test/language/module-code/instn-named-err-dflt-thru-star-dflt.js(strict mode)
-test/language/module-code/instn-named-err-not-found-as.js(strict mode)
-test/language/module-code/instn-named-err-not-found-dflt.js(strict mode)
-test/language/module-code/instn-named-err-not-found.js(strict mode)
-test/language/module-code/instn-resolve-empty-export.js(strict mode)
-test/language/module-code/instn-resolve-empty-import.js(strict mode)
-test/language/module-code/instn-resolve-err-syntax-1.js(strict mode)
-test/language/module-code/instn-resolve-err-syntax-2.js(strict mode)
-test/language/module-code/instn-resolve-order-depth.js(strict mode)
-test/language/module-code/instn-resolve-order-src.js(strict mode)
-test/language/module-code/instn-star-err-not-found.js(strict mode)
 test/language/module-code/parse-err-decl-pos-export-block-stmt-list.js(strict mode)
 test/language/module-code/parse-err-decl-pos-export-block-stmt.js(strict mode)
 test/language/module-code/parse-err-decl-pos-export-switch-case-dflt.js(strict mode)