| // Copyright (C) 2015 André Bargull. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| es6id: 12.9.3 |
| description: > |
| Throws a TypeError if `prototype` property is not an Object. |
| info: | |
| 12.9.3 Runtime Semantics: Evaluation |
| RelationalExpression : RelationalExpression instanceof ShiftExpression |
| ... |
| 7. Return InstanceofOperator(lval, rval). |
| |
| 12.9.4 Runtime Semantics: InstanceofOperator(O, C) |
| ... |
| 6. Return OrdinaryHasInstance(C, O). |
| |
| 7.3.19 OrdinaryHasInstance |
| ... |
| 3. If Type(O) is not Object, return false. |
| 4. Let P be Get(C, "prototype"). |
| 5. ReturnIfAbrupt(P). |
| 6. If Type(P) is not Object, throw a TypeError exception. |
| ... |
| ---*/ |
| |
| // Check with primitive "prototype" property on non-constructor function. |
| Function.prototype.prototype = ""; |
| |
| assert.throws(TypeError, function() { |
| [] instanceof Function.prototype; |
| }); |
