import() cannot follow 'new'

Author: rhuanjl

lib/Parser/Parse.cpp

@@ -3624,6 +3624,10 @@ ParseNodePtr Parser::ParseTerm(BOOL fAllowCall,
     case tkIMPORT:
         if (m_scriptContext->GetConfig()->IsES6ModuleEnabled() && m_scriptContext->GetConfig()->IsESDynamicImportEnabled())
         {
+            if (!fAllowCall)
+            {
+                Error(ERRTokenAfter, _u("import"), _u("new"));
+            }
             this->GetScanner()->Scan();
             ChkCurTokNoScan(tkLParen, ERRnoLparen);
             pnode = ParseImportCall<buildAST>();

test/es6module/dynamic-module-functionality.js

@@ -400,7 +400,13 @@ var tests = [
 			//note exclusion of testScript case intentional - running the code from a script loads the module
 			//then the test from Module uses the one loaded by the script - do not add testScript here
         }
-	},
+    },
+    {
+        name : "Test 'new import()' throws - Bug Issue 5797",
+        body: function() {
+            assert.throws(()=>{eval('new import("ModuleSimpleExport.js")')}, SyntaxError);
+        }
+    }
 ];
 
 testRunner.runTests(tests, { verbose: WScript.Arguments[0] != "summary" });