[[FIX]] Don't crash on uncomplete typeof expression

Fixes #2506
jshint · Jul 2, 2015 · a32cf50 · a32cf50
1 parent aa8a023
commit a32cf50
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diff --git a/src/jshint.js b/src/jshint.js
@@ -2220,6 +2220,10 @@ var JSHINT = (function() {
     var p = expression(150);
     this.first = p;
 
+    if (!p) { // 'typeof' followed by nothing? Give up.
+      quit("E041", this.line || 0, this.character || 0);
+    }
+
     // The `typeof` operator accepts unresolvable references, so the operand
     // may be undefined.
     if (p.identifier) {

diff --git a/tests/unit/parser.js b/tests/unit/parser.js
@@ -39,6 +39,12 @@ exports.other = function (test) {
     .addError(1, "Unrecoverable syntax error. (100% scanned).")
     .test("if (product < ) {}", {es3: true});
 
+  // GH-2506
+  TestRun(test)
+    .addError(1, "Expected an identifier and instead saw ';'.")
+    .addError(1, "Unrecoverable syntax error. (100% scanned).")
+    .test("typeof;");
+
   test.done();
 };