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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 thrown by invocation of `Symbol.toPrimitive` method
during coercion
info: |
[...]
5. Let lprim be ? ToPrimitive(lval).
6. Let rprim be ? ToPrimitive(rval).
[...]
ES6 Section 7.1.1 ToPrimitive ( input [, PreferredType] )
[...]
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»).
b. ReturnIfAbrupt(result).
features: [Symbol.toPrimitive]
---*/
var thrower = {};
var counter = {};
var log;
Object.defineProperty(thrower, Symbol.toPrimitive, {
get: function() {
log += 'accessThrower';
return function() { throw new Test262Error(); };
}
});
Object.defineProperty(counter, Symbol.toPrimitive, {
get: function() {
log += 'accessCounter';
return function() { log += 'callCounter'; };
}
});
log = '';
assert.throws(Test262Error, function() {
thrower + counter;
}, 'error thrown by left-hand side');
assert.sameValue(log, 'accessThrower');
log = '';
assert.throws(Test262Error, function() {
counter + thrower;
}, 'error thrown by right-hand side');
assert.sameValue(log, 'accessCountercallCounteraccessThrower');
reportCompare(0, 0);