| // 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-dataview.prototype.getfloat64 |
| description: > |
| Boolean littleEndian argument coerced in ToBoolean |
| info: | |
| 24.2.4.6 DataView.prototype.getFloat64 ( byteOffset [ , littleEndian ] ) |
| |
| 1. Let v be the this value. |
| 2. If littleEndian is not present, let littleEndian be false. |
| 3. Return ? GetViewValue(v, byteOffset, littleEndian, "Float64"). |
| |
| 24.2.1.1 GetViewValue ( view, requestIndex, isLittleEndian, type ) |
| |
| ... |
| 14. Let bufferIndex be getIndex + viewOffset. |
| 15. Return GetValueFromBuffer(buffer, bufferIndex, type, isLittleEndian). |
| ... |
| |
| 24.1.1.5 GetValueFromBuffer ( arrayBuffer, byteIndex, type [ , isLittleEndian |
| ] ) |
| |
| ... |
| 8. If isLittleEndian is false, reverse the order of the elements of rawValue. |
| ... |
| features: [DataView.prototype.setUint8, Symbol] |
| ---*/ |
| |
| var buffer = new ArrayBuffer(8); |
| var sample = new DataView(buffer, 0); |
| |
| sample.setUint8(0, 67); |
| sample.setUint8(1, 17); |
| sample.setUint8(2, 0); |
| sample.setUint8(3, 0); |
| sample.setUint8(4, 0); |
| sample.setUint8(5, 0); |
| sample.setUint8(6, 20); |
| sample.setUint8(7, 68); |
| |
| // False |
| assert.sameValue(sample.getFloat64(0), 1196268651021585, "no arg"); |
| assert.sameValue(sample.getFloat64(0, undefined), 1196268651021585, "undefined"); |
| assert.sameValue(sample.getFloat64(0, null), 1196268651021585, "null"); |
| assert.sameValue(sample.getFloat64(0, 0), 1196268651021585, "0"); |
| assert.sameValue(sample.getFloat64(0, ""), 1196268651021585, "the empty string"); |
| |
| // True |
| assert.sameValue(sample.getFloat64(0, {}), 92233720368620160000, "{}"); |
| assert.sameValue(sample.getFloat64(0, Symbol("1")), 92233720368620160000, "symbol"); |
| assert.sameValue(sample.getFloat64(0, 1), 92233720368620160000, "1"); |
| assert.sameValue(sample.getFloat64(0, "string"), 92233720368620160000, "string"); |