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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-addition-operator-plus-runtime-semantics-evaluation
es6id: 12.7.3.1
description: >
Behavior when error is thrown while accessing `Symbol.toPrimitive` property
info: |
[...]
5. Let lprim be ? ToPrimitive(lval).
6. Let rprim be ? ToPrimitive(rval).
[...]
ES6 Section 7.1.1 ToPrimitive ( input [, PreferredType] )
1. If PreferredType was not passed, let hint be "default".
[...]
4. Let exoticToPrim be GetMethod(input, @@toPrimitive).
5. ReturnIfAbrupt(exoticToPrim).
6. If exoticToPrim is not undefined, then
a. Let result be Call(exoticToPrim, input, «hint»).
[...]
features: [Symbol.toPrimitive]
---*/
var thrower = {};
var counter = {};
var callCount = 0;
Object.defineProperty(thrower, Symbol.toPrimitive, {
get: function() {
throw new Test262Error();
}
});
Object.defineProperty(counter, Symbol.toPrimitive, {
get: function() {
callCount += 1;
}
});
assert.throws(Test262Error, function() {
thrower + counter;
}, 'error from property access of left-hand side');
assert.sameValue(callCount, 0);
assert.throws(Test262Error, function() {
counter + thrower;
}, 'error from property access of right-hand side');
assert.sameValue(callCount, 1);
reportCompare(0, 0);
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