fix(parser): fix missing rejection on function name

closes #182
meriyah · Mar 4, 2021 · 3327326 · 3327326
1 parent 3c0b156
commit 3327326
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Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/src/parser.ts b/src/parser.ts
@@ -4817,7 +4817,11 @@ export function parseFunctionDeclaration(
 
     firstRestricted = parser.token;
 
-    id = parseIdentifier(parser, context, 0);
+    if (parser.token & Token.IsIdentifier) {
+      id = parseIdentifier(parser, context, 0);
+    } else {
+      report(parser, Errors.UnexpectedToken, KeywordDescTable[parser.token & Token.Type]);
+    }
   }
 
   context =

diff --git a/test/parser/declarations/functions.ts b/test/parser/declarations/functions.ts
@@ -23,6 +23,9 @@ describe('Declarations - Function', () => {
   }
 
   for (const arg of [
+    'function 10() {}',
+    'function 0x7F() {}',
+    'function "str"() {}',
     'try function foo() {} catch (e) {}',
     'do function foo() {} while (0);',
     'for (;false;) function foo() {}',