octo-deno/lib/make/typed.js

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2017-06-28 04:33:03 +00:00
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
make.typed = {
byte: function (limit = null) {
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// [-128, 127]
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let value = (limit !== null) ? random.number(limit) : random.number(129)
value = random.chance(10) ? -value : value
return 'new Uint8Array([' + value + '])[0]'
},
octet: function (limit = null) {
// [0, 255]
let value = (limit !== null) ? random.number(limit) : random.number(256)
return 'new Int8Array([' + value + '])[0]'
},
short: function (limit = null) {
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// [-32768, 32767]
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let value = (limit !== null) ? random.number(limit) : random.number(32769)
value = random.chance(10) ? -value : value
return 'new Int16Array([' + value + '])[0]'
},
unsignedShort: function (limit = null) {
// [0, 65535]
let value = (limit !== null) ? random.number(limit) : random.number(65535)
return 'new Uint16Array([' + value + '])[0]'
},
long: function (limit = null) {
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// [-2147483648, 2147483647]
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let value = (limit !== null) ? random.number(limit) : random.number(2147483649)
value = random.chance(10) ? -value : value
return 'new Int32Array([' + value + '])[0]'
},
unsignedLong: function (limit = null) {
// [0, 4294967295]
let value = (limit !== null) ? random.number(limit) : random.number(4294967296)
return 'new Uint32Array([' + value + '])[0]'
},
// ToDo: Add support for longlong and ulonglong
/*
longLong: function () {},
unsignedLongLong: function () {},
*/
float: function (limit = null) {
let base = (limit !== null) ? random.number(limit) : random.number()
let value = random.chance(10) ? -(base + random.float()) : (base + random.float())
return 'new Float32Array([' + value + '])[0]'
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},
unrestrictedFloat: function (limit = null) {
if (random.chance(100)) {
return random.pick([NaN, +Infinity, -Infinity])
} else {
let base = (limit !== null) ? random.number(limit) : random.number()
return 'new Float32Array([' + (base + random.float()) + '])[0]'
}
},
double: function (limit = null) {
let base = (limit !== null) ? random.number(limit) : random.number()
let value = random.chance(10) ? -(base + random.float()) : (base + random.float())
return 'new Float64Array([' + value + '])[0]'
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},
unrestrictedDouble: function (limit = null) {
if (random.chance(100)) {
return random.pick([NaN, +Infinity, -Infinity])
} else {
let base = (limit !== null) ? random.number(limit) : random.number()
let value = random.chance(10) ? -(base + random.float()) : (base + random.float())
return 'new Float64Array([' + value + '])[0]'
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}
},
any: function () {
let value = random.choose([
[1, [this.byte, this.octet]],
[1, [this.short, this.unsignedShort]],
[1, [this.long, this.unsignedLong]],
[1, [this.float, this.unrestrictedFloat]],
[1, [this.double, this.unrestrictedDouble]],
[1, [this.range, make.number.tiny]]
])
return random.chance(10) ? -value : value
}
}