// |reftest| skip-if(!this.hasOwnProperty('SharedArrayBuffer')) -- SharedArrayBuffer is not enabled unconditionally // Copyright (C) 2016 the V8 project authors. All rights reserved. // Copyright (C) 2017 Mozilla Corporation. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-dataview-buffer-byteoffset-bytelength description: > ToIndex conversions on byteLength info: | 24.2.2.1 DataView ( buffer, byteOffset, byteLength ) ... 8. If byteLength is either not present or undefined, then a. Let viewByteLength be bufferByteLength - offset. 9. Else, a. Let viewByteLength be ? ToIndex(byteLength). b. If offset + viewByteLength > bufferByteLength, throw a RangeError exception. ... ToIndex( value ) 1. If value is undefined, then a. Let index be 0. 2. Else, a. Let integerIndex be ? ToInteger(value). b. If integerIndex < 0, throw a RangeError exception. c. Let index be ! ToLength(integerIndex). d. If SameValueZero(integerIndex, index) is false, throw a RangeError exception. 3. Return index. features: [SharedArrayBuffer] ---*/ var obj1 = { valueOf: function() { return 3; } }; var obj2 = { toString: function() { return 4; } }; var sample; var ab = new SharedArrayBuffer(42); sample = new DataView(ab, 0, -0); assert.sameValue(sample.byteLength, 0, "-0"); sample = new DataView(ab, 0, obj1); assert.sameValue(sample.byteLength, 3, "object's valueOf"); sample = new DataView(ab, 0, obj2); assert.sameValue(sample.byteLength, 4, "object's toString"); sample = new DataView(ab, 0, ""); assert.sameValue(sample.byteLength, 0, "the Empty string"); sample = new DataView(ab, 0, "0"); assert.sameValue(sample.byteLength, 0, "string '0'"); sample = new DataView(ab, 0, "1"); assert.sameValue(sample.byteLength, 1, "string '1'"); sample = new DataView(ab, 0, true); assert.sameValue(sample.byteLength, 1, "true"); sample = new DataView(ab, 0, false); assert.sameValue(sample.byteLength, 0, "false"); sample = new DataView(ab, 0, NaN); assert.sameValue(sample.byteLength, 0, "NaN"); sample = new DataView(ab, 0, null); assert.sameValue(sample.byteLength, 0, "null"); sample = new DataView(ab, 0, 0.1); assert.sameValue(sample.byteLength, 0, "0.1"); sample = new DataView(ab, 0, 0.9); assert.sameValue(sample.byteLength, 0, "0.9"); sample = new DataView(ab, 0, 1.1); assert.sameValue(sample.byteLength, 1, "1.1"); sample = new DataView(ab, 0, 1.9); assert.sameValue(sample.byteLength, 1, "1.9"); sample = new DataView(ab, 0, -0.1); assert.sameValue(sample.byteLength, 0, "-0.1"); sample = new DataView(ab, 0, -0.99999); assert.sameValue(sample.byteLength, 0, "-0.99999"); reportCompare(0, 0);