| // 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-typedarray-object |
| description: > |
| Return abrupt from @@toPrimitive when setting a property |
| info: | |
| 22.2.4.4 TypedArray ( object ) |
| |
| This description applies only if the TypedArray function is called with at |
| least one argument and the Type of the first argument is Object and that |
| object does not have either a [[TypedArrayName]] or an [[ArrayBufferData]] |
| internal slot. |
| |
| ... |
| 8. Repeat, while k < len |
| ... |
| b. Let kValue be ? Get(arrayLike, Pk). |
| c. Perform ? Set(O, Pk, kValue, true). |
| ... |
| |
| 9.4.5.5 [[Set]] ( P, V, Receiver) |
| |
| ... |
| 2. If Type(P) is String and if SameValue(O, Receiver) is true, then |
| a. Let numericIndex be ! CanonicalNumericIndexString(P). |
| b. If numericIndex is not undefined, then |
| i. Return ? IntegerIndexedElementSet(O, numericIndex, V). |
| ... |
| |
| 9.4.5.9 IntegerIndexedElementSet ( O, index, value ) |
| |
| ... |
| 5. If arrayTypeName is "BigUint64Array" or "BigInt64Array", |
| let numValue be ? ToBigInt(value). |
| ... |
| |
| ToBigInt ( argument ) |
| |
| Object, Apply the following steps: |
| 1. Let prim be ? ToPrimitive(argument, hint Number). |
| 2. Return the value that prim corresponds to in Table 10. |
| |
| 7.1.1 ToPrimitive ( input [ , PreferredType ] ) |
| |
| ... |
| 4. Let exoticToPrim be ? GetMethod(input, @@toPrimitive). |
| 5. If exoticToPrim is not undefined, then |
| a. Let result be ? Call(exoticToPrim, input, « hint »). |
| ... |
| includes: [testBigIntTypedArray.js] |
| features: [BigInt, Symbol.toPrimitive, TypedArray] |
| ---*/ |
| |
| testWithBigIntTypedArrayConstructors(function(TA) { |
| var sample = new Int8Array(1); |
| var toPrimitive = 0; |
| var valueOf = 0; |
| |
| sample[Symbol.toPrimitive] = function() { |
| toPrimitive++; |
| throw new Test262Error(); |
| }; |
| |
| sample.valueOf = function() { |
| valueOf++; |
| }; |
| |
| assert.throws(Test262Error, function() { |
| new TA([8n, sample]); |
| }, "abrupt completion from sample @@toPrimitive"); |
| |
| assert.sameValue(toPrimitive, 1, "toPrimitive was called once"); |
| assert.sameValue(valueOf, 0, "it does not call sample.valueOf"); |
| }); |