[79a0317] | 1 | module.exports = Long;
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| 2 |
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| 3 | /**
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| 4 | * wasm optimizations, to do native i64 multiplication and divide
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| 5 | */
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| 6 | var wasm = null;
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| 7 |
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| 8 | try {
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| 9 | wasm = new WebAssembly.Instance(new WebAssembly.Module(new Uint8Array([
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| 10 | 0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11
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| 11 | ])), {}).exports;
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| 12 | } catch (e) {
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| 13 | // no wasm support :(
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| 14 | }
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| 15 |
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| 16 | /**
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| 17 | * Constructs a 64 bit two's-complement integer, given its low and high 32 bit values as *signed* integers.
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| 18 | * See the from* functions below for more convenient ways of constructing Longs.
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| 19 | * @exports Long
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| 20 | * @class A Long class for representing a 64 bit two's-complement integer value.
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| 21 | * @param {number} low The low (signed) 32 bits of the long
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| 22 | * @param {number} high The high (signed) 32 bits of the long
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| 23 | * @param {boolean=} unsigned Whether unsigned or not, defaults to signed
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| 24 | * @constructor
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| 25 | */
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| 26 | function Long(low, high, unsigned) {
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| 27 |
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| 28 | /**
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| 29 | * The low 32 bits as a signed value.
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| 30 | * @type {number}
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| 31 | */
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| 32 | this.low = low | 0;
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| 33 |
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| 34 | /**
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| 35 | * The high 32 bits as a signed value.
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| 36 | * @type {number}
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| 37 | */
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| 38 | this.high = high | 0;
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| 39 |
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| 40 | /**
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| 41 | * Whether unsigned or not.
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| 42 | * @type {boolean}
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| 43 | */
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| 44 | this.unsigned = !!unsigned;
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| 45 | }
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| 46 |
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| 47 | // The internal representation of a long is the two given signed, 32-bit values.
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| 48 | // We use 32-bit pieces because these are the size of integers on which
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| 49 | // Javascript performs bit-operations. For operations like addition and
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| 50 | // multiplication, we split each number into 16 bit pieces, which can easily be
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| 51 | // multiplied within Javascript's floating-point representation without overflow
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| 52 | // or change in sign.
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| 53 | //
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| 54 | // In the algorithms below, we frequently reduce the negative case to the
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| 55 | // positive case by negating the input(s) and then post-processing the result.
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| 56 | // Note that we must ALWAYS check specially whether those values are MIN_VALUE
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| 57 | // (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as
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| 58 | // a positive number, it overflows back into a negative). Not handling this
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| 59 | // case would often result in infinite recursion.
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| 60 | //
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| 61 | // Common constant values ZERO, ONE, NEG_ONE, etc. are defined below the from*
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| 62 | // methods on which they depend.
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| 63 |
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| 64 | /**
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| 65 | * An indicator used to reliably determine if an object is a Long or not.
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| 66 | * @type {boolean}
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| 67 | * @const
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| 68 | * @private
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| 69 | */
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| 70 | Long.prototype.__isLong__;
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| 71 |
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| 72 | Object.defineProperty(Long.prototype, "__isLong__", { value: true });
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| 73 |
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| 74 | /**
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| 75 | * @function
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| 76 | * @param {*} obj Object
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| 77 | * @returns {boolean}
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| 78 | * @inner
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| 79 | */
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| 80 | function isLong(obj) {
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| 81 | return (obj && obj["__isLong__"]) === true;
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| 82 | }
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| 83 |
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| 84 | /**
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| 85 | * Tests if the specified object is a Long.
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| 86 | * @function
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| 87 | * @param {*} obj Object
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| 88 | * @returns {boolean}
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| 89 | */
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| 90 | Long.isLong = isLong;
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| 91 |
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| 92 | /**
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| 93 | * A cache of the Long representations of small integer values.
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| 94 | * @type {!Object}
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| 95 | * @inner
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| 96 | */
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| 97 | var INT_CACHE = {};
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| 98 |
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| 99 | /**
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| 100 | * A cache of the Long representations of small unsigned integer values.
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| 101 | * @type {!Object}
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| 102 | * @inner
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| 103 | */
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| 104 | var UINT_CACHE = {};
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| 105 |
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| 106 | /**
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| 107 | * @param {number} value
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| 108 | * @param {boolean=} unsigned
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| 109 | * @returns {!Long}
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| 110 | * @inner
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| 111 | */
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| 112 | function fromInt(value, unsigned) {
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| 113 | var obj, cachedObj, cache;
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| 114 | if (unsigned) {
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| 115 | value >>>= 0;
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| 116 | if (cache = (0 <= value && value < 256)) {
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| 117 | cachedObj = UINT_CACHE[value];
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| 118 | if (cachedObj)
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| 119 | return cachedObj;
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| 120 | }
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| 121 | obj = fromBits(value, (value | 0) < 0 ? -1 : 0, true);
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| 122 | if (cache)
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| 123 | UINT_CACHE[value] = obj;
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| 124 | return obj;
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| 125 | } else {
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| 126 | value |= 0;
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| 127 | if (cache = (-128 <= value && value < 128)) {
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| 128 | cachedObj = INT_CACHE[value];
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| 129 | if (cachedObj)
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| 130 | return cachedObj;
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| 131 | }
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| 132 | obj = fromBits(value, value < 0 ? -1 : 0, false);
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| 133 | if (cache)
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| 134 | INT_CACHE[value] = obj;
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| 135 | return obj;
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| 136 | }
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| 137 | }
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| 138 |
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| 139 | /**
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| 140 | * Returns a Long representing the given 32 bit integer value.
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| 141 | * @function
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| 142 | * @param {number} value The 32 bit integer in question
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| 143 | * @param {boolean=} unsigned Whether unsigned or not, defaults to signed
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| 144 | * @returns {!Long} The corresponding Long value
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| 145 | */
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| 146 | Long.fromInt = fromInt;
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| 147 |
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| 148 | /**
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| 149 | * @param {number} value
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| 150 | * @param {boolean=} unsigned
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| 151 | * @returns {!Long}
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| 152 | * @inner
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| 153 | */
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| 154 | function fromNumber(value, unsigned) {
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| 155 | if (isNaN(value))
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| 156 | return unsigned ? UZERO : ZERO;
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| 157 | if (unsigned) {
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| 158 | if (value < 0)
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| 159 | return UZERO;
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| 160 | if (value >= TWO_PWR_64_DBL)
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| 161 | return MAX_UNSIGNED_VALUE;
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| 162 | } else {
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| 163 | if (value <= -TWO_PWR_63_DBL)
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| 164 | return MIN_VALUE;
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| 165 | if (value + 1 >= TWO_PWR_63_DBL)
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| 166 | return MAX_VALUE;
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| 167 | }
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| 168 | if (value < 0)
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| 169 | return fromNumber(-value, unsigned).neg();
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| 170 | return fromBits((value % TWO_PWR_32_DBL) | 0, (value / TWO_PWR_32_DBL) | 0, unsigned);
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| 171 | }
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| 172 |
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| 173 | /**
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| 174 | * Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned.
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| 175 | * @function
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| 176 | * @param {number} value The number in question
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| 177 | * @param {boolean=} unsigned Whether unsigned or not, defaults to signed
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| 178 | * @returns {!Long} The corresponding Long value
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| 179 | */
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| 180 | Long.fromNumber = fromNumber;
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| 181 |
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| 182 | /**
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| 183 | * @param {number} lowBits
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| 184 | * @param {number} highBits
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| 185 | * @param {boolean=} unsigned
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| 186 | * @returns {!Long}
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| 187 | * @inner
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| 188 | */
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| 189 | function fromBits(lowBits, highBits, unsigned) {
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| 190 | return new Long(lowBits, highBits, unsigned);
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| 191 | }
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| 192 |
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| 193 | /**
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| 194 | * Returns a Long representing the 64 bit integer that comes by concatenating the given low and high bits. Each is
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| 195 | * assumed to use 32 bits.
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| 196 | * @function
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| 197 | * @param {number} lowBits The low 32 bits
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| 198 | * @param {number} highBits The high 32 bits
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| 199 | * @param {boolean=} unsigned Whether unsigned or not, defaults to signed
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| 200 | * @returns {!Long} The corresponding Long value
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| 201 | */
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| 202 | Long.fromBits = fromBits;
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| 203 |
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| 204 | /**
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| 205 | * @function
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| 206 | * @param {number} base
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| 207 | * @param {number} exponent
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| 208 | * @returns {number}
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| 209 | * @inner
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| 210 | */
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| 211 | var pow_dbl = Math.pow; // Used 4 times (4*8 to 15+4)
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| 212 |
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| 213 | /**
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| 214 | * @param {string} str
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| 215 | * @param {(boolean|number)=} unsigned
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| 216 | * @param {number=} radix
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| 217 | * @returns {!Long}
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| 218 | * @inner
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| 219 | */
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| 220 | function fromString(str, unsigned, radix) {
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| 221 | if (str.length === 0)
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| 222 | throw Error('empty string');
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| 223 | if (str === "NaN" || str === "Infinity" || str === "+Infinity" || str === "-Infinity")
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| 224 | return ZERO;
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| 225 | if (typeof unsigned === 'number') {
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| 226 | // For goog.math.long compatibility
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| 227 | radix = unsigned,
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| 228 | unsigned = false;
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| 229 | } else {
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| 230 | unsigned = !! unsigned;
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| 231 | }
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| 232 | radix = radix || 10;
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| 233 | if (radix < 2 || 36 < radix)
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| 234 | throw RangeError('radix');
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| 235 |
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| 236 | var p;
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| 237 | if ((p = str.indexOf('-')) > 0)
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| 238 | throw Error('interior hyphen');
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| 239 | else if (p === 0) {
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| 240 | return fromString(str.substring(1), unsigned, radix).neg();
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| 241 | }
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| 242 |
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| 243 | // Do several (8) digits each time through the loop, so as to
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| 244 | // minimize the calls to the very expensive emulated div.
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| 245 | var radixToPower = fromNumber(pow_dbl(radix, 8));
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| 246 |
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| 247 | var result = ZERO;
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| 248 | for (var i = 0; i < str.length; i += 8) {
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| 249 | var size = Math.min(8, str.length - i),
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| 250 | value = parseInt(str.substring(i, i + size), radix);
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| 251 | if (size < 8) {
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| 252 | var power = fromNumber(pow_dbl(radix, size));
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| 253 | result = result.mul(power).add(fromNumber(value));
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| 254 | } else {
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| 255 | result = result.mul(radixToPower);
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| 256 | result = result.add(fromNumber(value));
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| 257 | }
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| 258 | }
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| 259 | result.unsigned = unsigned;
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| 260 | return result;
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| 261 | }
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| 262 |
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| 263 | /**
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| 264 | * Returns a Long representation of the given string, written using the specified radix.
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| 265 | * @function
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| 266 | * @param {string} str The textual representation of the Long
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| 267 | * @param {(boolean|number)=} unsigned Whether unsigned or not, defaults to signed
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| 268 | * @param {number=} radix The radix in which the text is written (2-36), defaults to 10
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| 269 | * @returns {!Long} The corresponding Long value
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| 270 | */
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| 271 | Long.fromString = fromString;
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| 272 |
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| 273 | /**
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| 274 | * @function
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| 275 | * @param {!Long|number|string|!{low: number, high: number, unsigned: boolean}} val
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| 276 | * @param {boolean=} unsigned
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| 277 | * @returns {!Long}
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| 278 | * @inner
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| 279 | */
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| 280 | function fromValue(val, unsigned) {
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| 281 | if (typeof val === 'number')
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| 282 | return fromNumber(val, unsigned);
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| 283 | if (typeof val === 'string')
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| 284 | return fromString(val, unsigned);
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| 285 | // Throws for non-objects, converts non-instanceof Long:
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| 286 | return fromBits(val.low, val.high, typeof unsigned === 'boolean' ? unsigned : val.unsigned);
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| 287 | }
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| 288 |
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| 289 | /**
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| 290 | * Converts the specified value to a Long using the appropriate from* function for its type.
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| 291 | * @function
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| 292 | * @param {!Long|number|string|!{low: number, high: number, unsigned: boolean}} val Value
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| 293 | * @param {boolean=} unsigned Whether unsigned or not, defaults to signed
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| 294 | * @returns {!Long}
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| 295 | */
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| 296 | Long.fromValue = fromValue;
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| 297 |
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| 298 | // NOTE: the compiler should inline these constant values below and then remove these variables, so there should be
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| 299 | // no runtime penalty for these.
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| 300 |
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| 301 | /**
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| 302 | * @type {number}
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| 303 | * @const
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| 304 | * @inner
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| 305 | */
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| 306 | var TWO_PWR_16_DBL = 1 << 16;
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| 307 |
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| 308 | /**
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| 309 | * @type {number}
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| 310 | * @const
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| 311 | * @inner
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| 312 | */
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| 313 | var TWO_PWR_24_DBL = 1 << 24;
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| 314 |
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| 315 | /**
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| 316 | * @type {number}
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| 317 | * @const
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| 318 | * @inner
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| 319 | */
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| 320 | var TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL;
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| 321 |
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| 322 | /**
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| 323 | * @type {number}
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| 324 | * @const
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| 325 | * @inner
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| 326 | */
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| 327 | var TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL;
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| 328 |
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| 329 | /**
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| 330 | * @type {number}
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| 331 | * @const
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| 332 | * @inner
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| 333 | */
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| 334 | var TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2;
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| 335 |
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| 336 | /**
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| 337 | * @type {!Long}
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| 338 | * @const
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| 339 | * @inner
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| 340 | */
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| 341 | var TWO_PWR_24 = fromInt(TWO_PWR_24_DBL);
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| 342 |
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| 343 | /**
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| 344 | * @type {!Long}
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| 345 | * @inner
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| 346 | */
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| 347 | var ZERO = fromInt(0);
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| 348 |
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| 349 | /**
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| 350 | * Signed zero.
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| 351 | * @type {!Long}
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| 352 | */
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| 353 | Long.ZERO = ZERO;
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| 354 |
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| 355 | /**
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| 356 | * @type {!Long}
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| 357 | * @inner
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| 358 | */
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| 359 | var UZERO = fromInt(0, true);
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| 360 |
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| 361 | /**
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| 362 | * Unsigned zero.
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| 363 | * @type {!Long}
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| 364 | */
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| 365 | Long.UZERO = UZERO;
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| 366 |
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| 367 | /**
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| 368 | * @type {!Long}
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| 369 | * @inner
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| 370 | */
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| 371 | var ONE = fromInt(1);
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| 372 |
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| 373 | /**
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| 374 | * Signed one.
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| 375 | * @type {!Long}
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| 376 | */
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| 377 | Long.ONE = ONE;
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| 378 |
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| 379 | /**
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| 380 | * @type {!Long}
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| 381 | * @inner
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| 382 | */
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| 383 | var UONE = fromInt(1, true);
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| 384 |
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| 385 | /**
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| 386 | * Unsigned one.
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| 387 | * @type {!Long}
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| 388 | */
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| 389 | Long.UONE = UONE;
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| 390 |
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| 391 | /**
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| 392 | * @type {!Long}
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| 393 | * @inner
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| 394 | */
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| 395 | var NEG_ONE = fromInt(-1);
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| 396 |
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| 397 | /**
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| 398 | * Signed negative one.
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| 399 | * @type {!Long}
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| 400 | */
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| 401 | Long.NEG_ONE = NEG_ONE;
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| 402 |
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| 403 | /**
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| 404 | * @type {!Long}
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| 405 | * @inner
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| 406 | */
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| 407 | var MAX_VALUE = fromBits(0xFFFFFFFF|0, 0x7FFFFFFF|0, false);
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| 408 |
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| 409 | /**
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| 410 | * Maximum signed value.
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| 411 | * @type {!Long}
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| 412 | */
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| 413 | Long.MAX_VALUE = MAX_VALUE;
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| 414 |
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| 415 | /**
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| 416 | * @type {!Long}
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| 417 | * @inner
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| 418 | */
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| 419 | var MAX_UNSIGNED_VALUE = fromBits(0xFFFFFFFF|0, 0xFFFFFFFF|0, true);
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| 420 |
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| 421 | /**
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| 422 | * Maximum unsigned value.
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| 423 | * @type {!Long}
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| 424 | */
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| 425 | Long.MAX_UNSIGNED_VALUE = MAX_UNSIGNED_VALUE;
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| 426 |
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| 427 | /**
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| 428 | * @type {!Long}
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| 429 | * @inner
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| 430 | */
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| 431 | var MIN_VALUE = fromBits(0, 0x80000000|0, false);
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| 432 |
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| 433 | /**
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| 434 | * Minimum signed value.
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| 435 | * @type {!Long}
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| 436 | */
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| 437 | Long.MIN_VALUE = MIN_VALUE;
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| 438 |
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| 439 | /**
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| 440 | * @alias Long.prototype
|
---|
| 441 | * @inner
|
---|
| 442 | */
|
---|
| 443 | var LongPrototype = Long.prototype;
|
---|
| 444 |
|
---|
| 445 | /**
|
---|
| 446 | * Converts the Long to a 32 bit integer, assuming it is a 32 bit integer.
|
---|
| 447 | * @this {!Long}
|
---|
| 448 | * @returns {number}
|
---|
| 449 | */
|
---|
| 450 | LongPrototype.toInt = function toInt() {
|
---|
| 451 | return this.unsigned ? this.low >>> 0 : this.low;
|
---|
| 452 | };
|
---|
| 453 |
|
---|
| 454 | /**
|
---|
| 455 | * Converts the Long to a the nearest floating-point representation of this value (double, 53 bit mantissa).
|
---|
| 456 | * @this {!Long}
|
---|
| 457 | * @returns {number}
|
---|
| 458 | */
|
---|
| 459 | LongPrototype.toNumber = function toNumber() {
|
---|
| 460 | if (this.unsigned)
|
---|
| 461 | return ((this.high >>> 0) * TWO_PWR_32_DBL) + (this.low >>> 0);
|
---|
| 462 | return this.high * TWO_PWR_32_DBL + (this.low >>> 0);
|
---|
| 463 | };
|
---|
| 464 |
|
---|
| 465 | /**
|
---|
| 466 | * Converts the Long to a string written in the specified radix.
|
---|
| 467 | * @this {!Long}
|
---|
| 468 | * @param {number=} radix Radix (2-36), defaults to 10
|
---|
| 469 | * @returns {string}
|
---|
| 470 | * @override
|
---|
| 471 | * @throws {RangeError} If `radix` is out of range
|
---|
| 472 | */
|
---|
| 473 | LongPrototype.toString = function toString(radix) {
|
---|
| 474 | radix = radix || 10;
|
---|
| 475 | if (radix < 2 || 36 < radix)
|
---|
| 476 | throw RangeError('radix');
|
---|
| 477 | if (this.isZero())
|
---|
| 478 | return '0';
|
---|
| 479 | if (this.isNegative()) { // Unsigned Longs are never negative
|
---|
| 480 | if (this.eq(MIN_VALUE)) {
|
---|
| 481 | // We need to change the Long value before it can be negated, so we remove
|
---|
| 482 | // the bottom-most digit in this base and then recurse to do the rest.
|
---|
| 483 | var radixLong = fromNumber(radix),
|
---|
| 484 | div = this.div(radixLong),
|
---|
| 485 | rem1 = div.mul(radixLong).sub(this);
|
---|
| 486 | return div.toString(radix) + rem1.toInt().toString(radix);
|
---|
| 487 | } else
|
---|
| 488 | return '-' + this.neg().toString(radix);
|
---|
| 489 | }
|
---|
| 490 |
|
---|
| 491 | // Do several (6) digits each time through the loop, so as to
|
---|
| 492 | // minimize the calls to the very expensive emulated div.
|
---|
| 493 | var radixToPower = fromNumber(pow_dbl(radix, 6), this.unsigned),
|
---|
| 494 | rem = this;
|
---|
| 495 | var result = '';
|
---|
| 496 | while (true) {
|
---|
| 497 | var remDiv = rem.div(radixToPower),
|
---|
| 498 | intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0,
|
---|
| 499 | digits = intval.toString(radix);
|
---|
| 500 | rem = remDiv;
|
---|
| 501 | if (rem.isZero())
|
---|
| 502 | return digits + result;
|
---|
| 503 | else {
|
---|
| 504 | while (digits.length < 6)
|
---|
| 505 | digits = '0' + digits;
|
---|
| 506 | result = '' + digits + result;
|
---|
| 507 | }
|
---|
| 508 | }
|
---|
| 509 | };
|
---|
| 510 |
|
---|
| 511 | /**
|
---|
| 512 | * Gets the high 32 bits as a signed integer.
|
---|
| 513 | * @this {!Long}
|
---|
| 514 | * @returns {number} Signed high bits
|
---|
| 515 | */
|
---|
| 516 | LongPrototype.getHighBits = function getHighBits() {
|
---|
| 517 | return this.high;
|
---|
| 518 | };
|
---|
| 519 |
|
---|
| 520 | /**
|
---|
| 521 | * Gets the high 32 bits as an unsigned integer.
|
---|
| 522 | * @this {!Long}
|
---|
| 523 | * @returns {number} Unsigned high bits
|
---|
| 524 | */
|
---|
| 525 | LongPrototype.getHighBitsUnsigned = function getHighBitsUnsigned() {
|
---|
| 526 | return this.high >>> 0;
|
---|
| 527 | };
|
---|
| 528 |
|
---|
| 529 | /**
|
---|
| 530 | * Gets the low 32 bits as a signed integer.
|
---|
| 531 | * @this {!Long}
|
---|
| 532 | * @returns {number} Signed low bits
|
---|
| 533 | */
|
---|
| 534 | LongPrototype.getLowBits = function getLowBits() {
|
---|
| 535 | return this.low;
|
---|
| 536 | };
|
---|
| 537 |
|
---|
| 538 | /**
|
---|
| 539 | * Gets the low 32 bits as an unsigned integer.
|
---|
| 540 | * @this {!Long}
|
---|
| 541 | * @returns {number} Unsigned low bits
|
---|
| 542 | */
|
---|
| 543 | LongPrototype.getLowBitsUnsigned = function getLowBitsUnsigned() {
|
---|
| 544 | return this.low >>> 0;
|
---|
| 545 | };
|
---|
| 546 |
|
---|
| 547 | /**
|
---|
| 548 | * Gets the number of bits needed to represent the absolute value of this Long.
|
---|
| 549 | * @this {!Long}
|
---|
| 550 | * @returns {number}
|
---|
| 551 | */
|
---|
| 552 | LongPrototype.getNumBitsAbs = function getNumBitsAbs() {
|
---|
| 553 | if (this.isNegative()) // Unsigned Longs are never negative
|
---|
| 554 | return this.eq(MIN_VALUE) ? 64 : this.neg().getNumBitsAbs();
|
---|
| 555 | var val = this.high != 0 ? this.high : this.low;
|
---|
| 556 | for (var bit = 31; bit > 0; bit--)
|
---|
| 557 | if ((val & (1 << bit)) != 0)
|
---|
| 558 | break;
|
---|
| 559 | return this.high != 0 ? bit + 33 : bit + 1;
|
---|
| 560 | };
|
---|
| 561 |
|
---|
| 562 | /**
|
---|
| 563 | * Tests if this Long's value equals zero.
|
---|
| 564 | * @this {!Long}
|
---|
| 565 | * @returns {boolean}
|
---|
| 566 | */
|
---|
| 567 | LongPrototype.isZero = function isZero() {
|
---|
| 568 | return this.high === 0 && this.low === 0;
|
---|
| 569 | };
|
---|
| 570 |
|
---|
| 571 | /**
|
---|
| 572 | * Tests if this Long's value equals zero. This is an alias of {@link Long#isZero}.
|
---|
| 573 | * @returns {boolean}
|
---|
| 574 | */
|
---|
| 575 | LongPrototype.eqz = LongPrototype.isZero;
|
---|
| 576 |
|
---|
| 577 | /**
|
---|
| 578 | * Tests if this Long's value is negative.
|
---|
| 579 | * @this {!Long}
|
---|
| 580 | * @returns {boolean}
|
---|
| 581 | */
|
---|
| 582 | LongPrototype.isNegative = function isNegative() {
|
---|
| 583 | return !this.unsigned && this.high < 0;
|
---|
| 584 | };
|
---|
| 585 |
|
---|
| 586 | /**
|
---|
| 587 | * Tests if this Long's value is positive.
|
---|
| 588 | * @this {!Long}
|
---|
| 589 | * @returns {boolean}
|
---|
| 590 | */
|
---|
| 591 | LongPrototype.isPositive = function isPositive() {
|
---|
| 592 | return this.unsigned || this.high >= 0;
|
---|
| 593 | };
|
---|
| 594 |
|
---|
| 595 | /**
|
---|
| 596 | * Tests if this Long's value is odd.
|
---|
| 597 | * @this {!Long}
|
---|
| 598 | * @returns {boolean}
|
---|
| 599 | */
|
---|
| 600 | LongPrototype.isOdd = function isOdd() {
|
---|
| 601 | return (this.low & 1) === 1;
|
---|
| 602 | };
|
---|
| 603 |
|
---|
| 604 | /**
|
---|
| 605 | * Tests if this Long's value is even.
|
---|
| 606 | * @this {!Long}
|
---|
| 607 | * @returns {boolean}
|
---|
| 608 | */
|
---|
| 609 | LongPrototype.isEven = function isEven() {
|
---|
| 610 | return (this.low & 1) === 0;
|
---|
| 611 | };
|
---|
| 612 |
|
---|
| 613 | /**
|
---|
| 614 | * Tests if this Long's value equals the specified's.
|
---|
| 615 | * @this {!Long}
|
---|
| 616 | * @param {!Long|number|string} other Other value
|
---|
| 617 | * @returns {boolean}
|
---|
| 618 | */
|
---|
| 619 | LongPrototype.equals = function equals(other) {
|
---|
| 620 | if (!isLong(other))
|
---|
| 621 | other = fromValue(other);
|
---|
| 622 | if (this.unsigned !== other.unsigned && (this.high >>> 31) === 1 && (other.high >>> 31) === 1)
|
---|
| 623 | return false;
|
---|
| 624 | return this.high === other.high && this.low === other.low;
|
---|
| 625 | };
|
---|
| 626 |
|
---|
| 627 | /**
|
---|
| 628 | * Tests if this Long's value equals the specified's. This is an alias of {@link Long#equals}.
|
---|
| 629 | * @function
|
---|
| 630 | * @param {!Long|number|string} other Other value
|
---|
| 631 | * @returns {boolean}
|
---|
| 632 | */
|
---|
| 633 | LongPrototype.eq = LongPrototype.equals;
|
---|
| 634 |
|
---|
| 635 | /**
|
---|
| 636 | * Tests if this Long's value differs from the specified's.
|
---|
| 637 | * @this {!Long}
|
---|
| 638 | * @param {!Long|number|string} other Other value
|
---|
| 639 | * @returns {boolean}
|
---|
| 640 | */
|
---|
| 641 | LongPrototype.notEquals = function notEquals(other) {
|
---|
| 642 | return !this.eq(/* validates */ other);
|
---|
| 643 | };
|
---|
| 644 |
|
---|
| 645 | /**
|
---|
| 646 | * Tests if this Long's value differs from the specified's. This is an alias of {@link Long#notEquals}.
|
---|
| 647 | * @function
|
---|
| 648 | * @param {!Long|number|string} other Other value
|
---|
| 649 | * @returns {boolean}
|
---|
| 650 | */
|
---|
| 651 | LongPrototype.neq = LongPrototype.notEquals;
|
---|
| 652 |
|
---|
| 653 | /**
|
---|
| 654 | * Tests if this Long's value differs from the specified's. This is an alias of {@link Long#notEquals}.
|
---|
| 655 | * @function
|
---|
| 656 | * @param {!Long|number|string} other Other value
|
---|
| 657 | * @returns {boolean}
|
---|
| 658 | */
|
---|
| 659 | LongPrototype.ne = LongPrototype.notEquals;
|
---|
| 660 |
|
---|
| 661 | /**
|
---|
| 662 | * Tests if this Long's value is less than the specified's.
|
---|
| 663 | * @this {!Long}
|
---|
| 664 | * @param {!Long|number|string} other Other value
|
---|
| 665 | * @returns {boolean}
|
---|
| 666 | */
|
---|
| 667 | LongPrototype.lessThan = function lessThan(other) {
|
---|
| 668 | return this.comp(/* validates */ other) < 0;
|
---|
| 669 | };
|
---|
| 670 |
|
---|
| 671 | /**
|
---|
| 672 | * Tests if this Long's value is less than the specified's. This is an alias of {@link Long#lessThan}.
|
---|
| 673 | * @function
|
---|
| 674 | * @param {!Long|number|string} other Other value
|
---|
| 675 | * @returns {boolean}
|
---|
| 676 | */
|
---|
| 677 | LongPrototype.lt = LongPrototype.lessThan;
|
---|
| 678 |
|
---|
| 679 | /**
|
---|
| 680 | * Tests if this Long's value is less than or equal the specified's.
|
---|
| 681 | * @this {!Long}
|
---|
| 682 | * @param {!Long|number|string} other Other value
|
---|
| 683 | * @returns {boolean}
|
---|
| 684 | */
|
---|
| 685 | LongPrototype.lessThanOrEqual = function lessThanOrEqual(other) {
|
---|
| 686 | return this.comp(/* validates */ other) <= 0;
|
---|
| 687 | };
|
---|
| 688 |
|
---|
| 689 | /**
|
---|
| 690 | * Tests if this Long's value is less than or equal the specified's. This is an alias of {@link Long#lessThanOrEqual}.
|
---|
| 691 | * @function
|
---|
| 692 | * @param {!Long|number|string} other Other value
|
---|
| 693 | * @returns {boolean}
|
---|
| 694 | */
|
---|
| 695 | LongPrototype.lte = LongPrototype.lessThanOrEqual;
|
---|
| 696 |
|
---|
| 697 | /**
|
---|
| 698 | * Tests if this Long's value is less than or equal the specified's. This is an alias of {@link Long#lessThanOrEqual}.
|
---|
| 699 | * @function
|
---|
| 700 | * @param {!Long|number|string} other Other value
|
---|
| 701 | * @returns {boolean}
|
---|
| 702 | */
|
---|
| 703 | LongPrototype.le = LongPrototype.lessThanOrEqual;
|
---|
| 704 |
|
---|
| 705 | /**
|
---|
| 706 | * Tests if this Long's value is greater than the specified's.
|
---|
| 707 | * @this {!Long}
|
---|
| 708 | * @param {!Long|number|string} other Other value
|
---|
| 709 | * @returns {boolean}
|
---|
| 710 | */
|
---|
| 711 | LongPrototype.greaterThan = function greaterThan(other) {
|
---|
| 712 | return this.comp(/* validates */ other) > 0;
|
---|
| 713 | };
|
---|
| 714 |
|
---|
| 715 | /**
|
---|
| 716 | * Tests if this Long's value is greater than the specified's. This is an alias of {@link Long#greaterThan}.
|
---|
| 717 | * @function
|
---|
| 718 | * @param {!Long|number|string} other Other value
|
---|
| 719 | * @returns {boolean}
|
---|
| 720 | */
|
---|
| 721 | LongPrototype.gt = LongPrototype.greaterThan;
|
---|
| 722 |
|
---|
| 723 | /**
|
---|
| 724 | * Tests if this Long's value is greater than or equal the specified's.
|
---|
| 725 | * @this {!Long}
|
---|
| 726 | * @param {!Long|number|string} other Other value
|
---|
| 727 | * @returns {boolean}
|
---|
| 728 | */
|
---|
| 729 | LongPrototype.greaterThanOrEqual = function greaterThanOrEqual(other) {
|
---|
| 730 | return this.comp(/* validates */ other) >= 0;
|
---|
| 731 | };
|
---|
| 732 |
|
---|
| 733 | /**
|
---|
| 734 | * Tests if this Long's value is greater than or equal the specified's. This is an alias of {@link Long#greaterThanOrEqual}.
|
---|
| 735 | * @function
|
---|
| 736 | * @param {!Long|number|string} other Other value
|
---|
| 737 | * @returns {boolean}
|
---|
| 738 | */
|
---|
| 739 | LongPrototype.gte = LongPrototype.greaterThanOrEqual;
|
---|
| 740 |
|
---|
| 741 | /**
|
---|
| 742 | * Tests if this Long's value is greater than or equal the specified's. This is an alias of {@link Long#greaterThanOrEqual}.
|
---|
| 743 | * @function
|
---|
| 744 | * @param {!Long|number|string} other Other value
|
---|
| 745 | * @returns {boolean}
|
---|
| 746 | */
|
---|
| 747 | LongPrototype.ge = LongPrototype.greaterThanOrEqual;
|
---|
| 748 |
|
---|
| 749 | /**
|
---|
| 750 | * Compares this Long's value with the specified's.
|
---|
| 751 | * @this {!Long}
|
---|
| 752 | * @param {!Long|number|string} other Other value
|
---|
| 753 | * @returns {number} 0 if they are the same, 1 if the this is greater and -1
|
---|
| 754 | * if the given one is greater
|
---|
| 755 | */
|
---|
| 756 | LongPrototype.compare = function compare(other) {
|
---|
| 757 | if (!isLong(other))
|
---|
| 758 | other = fromValue(other);
|
---|
| 759 | if (this.eq(other))
|
---|
| 760 | return 0;
|
---|
| 761 | var thisNeg = this.isNegative(),
|
---|
| 762 | otherNeg = other.isNegative();
|
---|
| 763 | if (thisNeg && !otherNeg)
|
---|
| 764 | return -1;
|
---|
| 765 | if (!thisNeg && otherNeg)
|
---|
| 766 | return 1;
|
---|
| 767 | // At this point the sign bits are the same
|
---|
| 768 | if (!this.unsigned)
|
---|
| 769 | return this.sub(other).isNegative() ? -1 : 1;
|
---|
| 770 | // Both are positive if at least one is unsigned
|
---|
| 771 | return (other.high >>> 0) > (this.high >>> 0) || (other.high === this.high && (other.low >>> 0) > (this.low >>> 0)) ? -1 : 1;
|
---|
| 772 | };
|
---|
| 773 |
|
---|
| 774 | /**
|
---|
| 775 | * Compares this Long's value with the specified's. This is an alias of {@link Long#compare}.
|
---|
| 776 | * @function
|
---|
| 777 | * @param {!Long|number|string} other Other value
|
---|
| 778 | * @returns {number} 0 if they are the same, 1 if the this is greater and -1
|
---|
| 779 | * if the given one is greater
|
---|
| 780 | */
|
---|
| 781 | LongPrototype.comp = LongPrototype.compare;
|
---|
| 782 |
|
---|
| 783 | /**
|
---|
| 784 | * Negates this Long's value.
|
---|
| 785 | * @this {!Long}
|
---|
| 786 | * @returns {!Long} Negated Long
|
---|
| 787 | */
|
---|
| 788 | LongPrototype.negate = function negate() {
|
---|
| 789 | if (!this.unsigned && this.eq(MIN_VALUE))
|
---|
| 790 | return MIN_VALUE;
|
---|
| 791 | return this.not().add(ONE);
|
---|
| 792 | };
|
---|
| 793 |
|
---|
| 794 | /**
|
---|
| 795 | * Negates this Long's value. This is an alias of {@link Long#negate}.
|
---|
| 796 | * @function
|
---|
| 797 | * @returns {!Long} Negated Long
|
---|
| 798 | */
|
---|
| 799 | LongPrototype.neg = LongPrototype.negate;
|
---|
| 800 |
|
---|
| 801 | /**
|
---|
| 802 | * Returns the sum of this and the specified Long.
|
---|
| 803 | * @this {!Long}
|
---|
| 804 | * @param {!Long|number|string} addend Addend
|
---|
| 805 | * @returns {!Long} Sum
|
---|
| 806 | */
|
---|
| 807 | LongPrototype.add = function add(addend) {
|
---|
| 808 | if (!isLong(addend))
|
---|
| 809 | addend = fromValue(addend);
|
---|
| 810 |
|
---|
| 811 | // Divide each number into 4 chunks of 16 bits, and then sum the chunks.
|
---|
| 812 |
|
---|
| 813 | var a48 = this.high >>> 16;
|
---|
| 814 | var a32 = this.high & 0xFFFF;
|
---|
| 815 | var a16 = this.low >>> 16;
|
---|
| 816 | var a00 = this.low & 0xFFFF;
|
---|
| 817 |
|
---|
| 818 | var b48 = addend.high >>> 16;
|
---|
| 819 | var b32 = addend.high & 0xFFFF;
|
---|
| 820 | var b16 = addend.low >>> 16;
|
---|
| 821 | var b00 = addend.low & 0xFFFF;
|
---|
| 822 |
|
---|
| 823 | var c48 = 0, c32 = 0, c16 = 0, c00 = 0;
|
---|
| 824 | c00 += a00 + b00;
|
---|
| 825 | c16 += c00 >>> 16;
|
---|
| 826 | c00 &= 0xFFFF;
|
---|
| 827 | c16 += a16 + b16;
|
---|
| 828 | c32 += c16 >>> 16;
|
---|
| 829 | c16 &= 0xFFFF;
|
---|
| 830 | c32 += a32 + b32;
|
---|
| 831 | c48 += c32 >>> 16;
|
---|
| 832 | c32 &= 0xFFFF;
|
---|
| 833 | c48 += a48 + b48;
|
---|
| 834 | c48 &= 0xFFFF;
|
---|
| 835 | return fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
|
---|
| 836 | };
|
---|
| 837 |
|
---|
| 838 | /**
|
---|
| 839 | * Returns the difference of this and the specified Long.
|
---|
| 840 | * @this {!Long}
|
---|
| 841 | * @param {!Long|number|string} subtrahend Subtrahend
|
---|
| 842 | * @returns {!Long} Difference
|
---|
| 843 | */
|
---|
| 844 | LongPrototype.subtract = function subtract(subtrahend) {
|
---|
| 845 | if (!isLong(subtrahend))
|
---|
| 846 | subtrahend = fromValue(subtrahend);
|
---|
| 847 | return this.add(subtrahend.neg());
|
---|
| 848 | };
|
---|
| 849 |
|
---|
| 850 | /**
|
---|
| 851 | * Returns the difference of this and the specified Long. This is an alias of {@link Long#subtract}.
|
---|
| 852 | * @function
|
---|
| 853 | * @param {!Long|number|string} subtrahend Subtrahend
|
---|
| 854 | * @returns {!Long} Difference
|
---|
| 855 | */
|
---|
| 856 | LongPrototype.sub = LongPrototype.subtract;
|
---|
| 857 |
|
---|
| 858 | /**
|
---|
| 859 | * Returns the product of this and the specified Long.
|
---|
| 860 | * @this {!Long}
|
---|
| 861 | * @param {!Long|number|string} multiplier Multiplier
|
---|
| 862 | * @returns {!Long} Product
|
---|
| 863 | */
|
---|
| 864 | LongPrototype.multiply = function multiply(multiplier) {
|
---|
| 865 | if (this.isZero())
|
---|
| 866 | return ZERO;
|
---|
| 867 | if (!isLong(multiplier))
|
---|
| 868 | multiplier = fromValue(multiplier);
|
---|
| 869 |
|
---|
| 870 | // use wasm support if present
|
---|
| 871 | if (wasm) {
|
---|
| 872 | var low = wasm["mul"](this.low,
|
---|
| 873 | this.high,
|
---|
| 874 | multiplier.low,
|
---|
| 875 | multiplier.high);
|
---|
| 876 | return fromBits(low, wasm["get_high"](), this.unsigned);
|
---|
| 877 | }
|
---|
| 878 |
|
---|
| 879 | if (multiplier.isZero())
|
---|
| 880 | return ZERO;
|
---|
| 881 | if (this.eq(MIN_VALUE))
|
---|
| 882 | return multiplier.isOdd() ? MIN_VALUE : ZERO;
|
---|
| 883 | if (multiplier.eq(MIN_VALUE))
|
---|
| 884 | return this.isOdd() ? MIN_VALUE : ZERO;
|
---|
| 885 |
|
---|
| 886 | if (this.isNegative()) {
|
---|
| 887 | if (multiplier.isNegative())
|
---|
| 888 | return this.neg().mul(multiplier.neg());
|
---|
| 889 | else
|
---|
| 890 | return this.neg().mul(multiplier).neg();
|
---|
| 891 | } else if (multiplier.isNegative())
|
---|
| 892 | return this.mul(multiplier.neg()).neg();
|
---|
| 893 |
|
---|
| 894 | // If both longs are small, use float multiplication
|
---|
| 895 | if (this.lt(TWO_PWR_24) && multiplier.lt(TWO_PWR_24))
|
---|
| 896 | return fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned);
|
---|
| 897 |
|
---|
| 898 | // Divide each long into 4 chunks of 16 bits, and then add up 4x4 products.
|
---|
| 899 | // We can skip products that would overflow.
|
---|
| 900 |
|
---|
| 901 | var a48 = this.high >>> 16;
|
---|
| 902 | var a32 = this.high & 0xFFFF;
|
---|
| 903 | var a16 = this.low >>> 16;
|
---|
| 904 | var a00 = this.low & 0xFFFF;
|
---|
| 905 |
|
---|
| 906 | var b48 = multiplier.high >>> 16;
|
---|
| 907 | var b32 = multiplier.high & 0xFFFF;
|
---|
| 908 | var b16 = multiplier.low >>> 16;
|
---|
| 909 | var b00 = multiplier.low & 0xFFFF;
|
---|
| 910 |
|
---|
| 911 | var c48 = 0, c32 = 0, c16 = 0, c00 = 0;
|
---|
| 912 | c00 += a00 * b00;
|
---|
| 913 | c16 += c00 >>> 16;
|
---|
| 914 | c00 &= 0xFFFF;
|
---|
| 915 | c16 += a16 * b00;
|
---|
| 916 | c32 += c16 >>> 16;
|
---|
| 917 | c16 &= 0xFFFF;
|
---|
| 918 | c16 += a00 * b16;
|
---|
| 919 | c32 += c16 >>> 16;
|
---|
| 920 | c16 &= 0xFFFF;
|
---|
| 921 | c32 += a32 * b00;
|
---|
| 922 | c48 += c32 >>> 16;
|
---|
| 923 | c32 &= 0xFFFF;
|
---|
| 924 | c32 += a16 * b16;
|
---|
| 925 | c48 += c32 >>> 16;
|
---|
| 926 | c32 &= 0xFFFF;
|
---|
| 927 | c32 += a00 * b32;
|
---|
| 928 | c48 += c32 >>> 16;
|
---|
| 929 | c32 &= 0xFFFF;
|
---|
| 930 | c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
|
---|
| 931 | c48 &= 0xFFFF;
|
---|
| 932 | return fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
|
---|
| 933 | };
|
---|
| 934 |
|
---|
| 935 | /**
|
---|
| 936 | * Returns the product of this and the specified Long. This is an alias of {@link Long#multiply}.
|
---|
| 937 | * @function
|
---|
| 938 | * @param {!Long|number|string} multiplier Multiplier
|
---|
| 939 | * @returns {!Long} Product
|
---|
| 940 | */
|
---|
| 941 | LongPrototype.mul = LongPrototype.multiply;
|
---|
| 942 |
|
---|
| 943 | /**
|
---|
| 944 | * Returns this Long divided by the specified. The result is signed if this Long is signed or
|
---|
| 945 | * unsigned if this Long is unsigned.
|
---|
| 946 | * @this {!Long}
|
---|
| 947 | * @param {!Long|number|string} divisor Divisor
|
---|
| 948 | * @returns {!Long} Quotient
|
---|
| 949 | */
|
---|
| 950 | LongPrototype.divide = function divide(divisor) {
|
---|
| 951 | if (!isLong(divisor))
|
---|
| 952 | divisor = fromValue(divisor);
|
---|
| 953 | if (divisor.isZero())
|
---|
| 954 | throw Error('division by zero');
|
---|
| 955 |
|
---|
| 956 | // use wasm support if present
|
---|
| 957 | if (wasm) {
|
---|
| 958 | // guard against signed division overflow: the largest
|
---|
| 959 | // negative number / -1 would be 1 larger than the largest
|
---|
| 960 | // positive number, due to two's complement.
|
---|
| 961 | if (!this.unsigned &&
|
---|
| 962 | this.high === -0x80000000 &&
|
---|
| 963 | divisor.low === -1 && divisor.high === -1) {
|
---|
| 964 | // be consistent with non-wasm code path
|
---|
| 965 | return this;
|
---|
| 966 | }
|
---|
| 967 | var low = (this.unsigned ? wasm["div_u"] : wasm["div_s"])(
|
---|
| 968 | this.low,
|
---|
| 969 | this.high,
|
---|
| 970 | divisor.low,
|
---|
| 971 | divisor.high
|
---|
| 972 | );
|
---|
| 973 | return fromBits(low, wasm["get_high"](), this.unsigned);
|
---|
| 974 | }
|
---|
| 975 |
|
---|
| 976 | if (this.isZero())
|
---|
| 977 | return this.unsigned ? UZERO : ZERO;
|
---|
| 978 | var approx, rem, res;
|
---|
| 979 | if (!this.unsigned) {
|
---|
| 980 | // This section is only relevant for signed longs and is derived from the
|
---|
| 981 | // closure library as a whole.
|
---|
| 982 | if (this.eq(MIN_VALUE)) {
|
---|
| 983 | if (divisor.eq(ONE) || divisor.eq(NEG_ONE))
|
---|
| 984 | return MIN_VALUE; // recall that -MIN_VALUE == MIN_VALUE
|
---|
| 985 | else if (divisor.eq(MIN_VALUE))
|
---|
| 986 | return ONE;
|
---|
| 987 | else {
|
---|
| 988 | // At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|.
|
---|
| 989 | var halfThis = this.shr(1);
|
---|
| 990 | approx = halfThis.div(divisor).shl(1);
|
---|
| 991 | if (approx.eq(ZERO)) {
|
---|
| 992 | return divisor.isNegative() ? ONE : NEG_ONE;
|
---|
| 993 | } else {
|
---|
| 994 | rem = this.sub(divisor.mul(approx));
|
---|
| 995 | res = approx.add(rem.div(divisor));
|
---|
| 996 | return res;
|
---|
| 997 | }
|
---|
| 998 | }
|
---|
| 999 | } else if (divisor.eq(MIN_VALUE))
|
---|
| 1000 | return this.unsigned ? UZERO : ZERO;
|
---|
| 1001 | if (this.isNegative()) {
|
---|
| 1002 | if (divisor.isNegative())
|
---|
| 1003 | return this.neg().div(divisor.neg());
|
---|
| 1004 | return this.neg().div(divisor).neg();
|
---|
| 1005 | } else if (divisor.isNegative())
|
---|
| 1006 | return this.div(divisor.neg()).neg();
|
---|
| 1007 | res = ZERO;
|
---|
| 1008 | } else {
|
---|
| 1009 | // The algorithm below has not been made for unsigned longs. It's therefore
|
---|
| 1010 | // required to take special care of the MSB prior to running it.
|
---|
| 1011 | if (!divisor.unsigned)
|
---|
| 1012 | divisor = divisor.toUnsigned();
|
---|
| 1013 | if (divisor.gt(this))
|
---|
| 1014 | return UZERO;
|
---|
| 1015 | if (divisor.gt(this.shru(1))) // 15 >>> 1 = 7 ; with divisor = 8 ; true
|
---|
| 1016 | return UONE;
|
---|
| 1017 | res = UZERO;
|
---|
| 1018 | }
|
---|
| 1019 |
|
---|
| 1020 | // Repeat the following until the remainder is less than other: find a
|
---|
| 1021 | // floating-point that approximates remainder / other *from below*, add this
|
---|
| 1022 | // into the result, and subtract it from the remainder. It is critical that
|
---|
| 1023 | // the approximate value is less than or equal to the real value so that the
|
---|
| 1024 | // remainder never becomes negative.
|
---|
| 1025 | rem = this;
|
---|
| 1026 | while (rem.gte(divisor)) {
|
---|
| 1027 | // Approximate the result of division. This may be a little greater or
|
---|
| 1028 | // smaller than the actual value.
|
---|
| 1029 | approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber()));
|
---|
| 1030 |
|
---|
| 1031 | // We will tweak the approximate result by changing it in the 48-th digit or
|
---|
| 1032 | // the smallest non-fractional digit, whichever is larger.
|
---|
| 1033 | var log2 = Math.ceil(Math.log(approx) / Math.LN2),
|
---|
| 1034 | delta = (log2 <= 48) ? 1 : pow_dbl(2, log2 - 48),
|
---|
| 1035 |
|
---|
| 1036 | // Decrease the approximation until it is smaller than the remainder. Note
|
---|
| 1037 | // that if it is too large, the product overflows and is negative.
|
---|
| 1038 | approxRes = fromNumber(approx),
|
---|
| 1039 | approxRem = approxRes.mul(divisor);
|
---|
| 1040 | while (approxRem.isNegative() || approxRem.gt(rem)) {
|
---|
| 1041 | approx -= delta;
|
---|
| 1042 | approxRes = fromNumber(approx, this.unsigned);
|
---|
| 1043 | approxRem = approxRes.mul(divisor);
|
---|
| 1044 | }
|
---|
| 1045 |
|
---|
| 1046 | // We know the answer can't be zero... and actually, zero would cause
|
---|
| 1047 | // infinite recursion since we would make no progress.
|
---|
| 1048 | if (approxRes.isZero())
|
---|
| 1049 | approxRes = ONE;
|
---|
| 1050 |
|
---|
| 1051 | res = res.add(approxRes);
|
---|
| 1052 | rem = rem.sub(approxRem);
|
---|
| 1053 | }
|
---|
| 1054 | return res;
|
---|
| 1055 | };
|
---|
| 1056 |
|
---|
| 1057 | /**
|
---|
| 1058 | * Returns this Long divided by the specified. This is an alias of {@link Long#divide}.
|
---|
| 1059 | * @function
|
---|
| 1060 | * @param {!Long|number|string} divisor Divisor
|
---|
| 1061 | * @returns {!Long} Quotient
|
---|
| 1062 | */
|
---|
| 1063 | LongPrototype.div = LongPrototype.divide;
|
---|
| 1064 |
|
---|
| 1065 | /**
|
---|
| 1066 | * Returns this Long modulo the specified.
|
---|
| 1067 | * @this {!Long}
|
---|
| 1068 | * @param {!Long|number|string} divisor Divisor
|
---|
| 1069 | * @returns {!Long} Remainder
|
---|
| 1070 | */
|
---|
| 1071 | LongPrototype.modulo = function modulo(divisor) {
|
---|
| 1072 | if (!isLong(divisor))
|
---|
| 1073 | divisor = fromValue(divisor);
|
---|
| 1074 |
|
---|
| 1075 | // use wasm support if present
|
---|
| 1076 | if (wasm) {
|
---|
| 1077 | var low = (this.unsigned ? wasm["rem_u"] : wasm["rem_s"])(
|
---|
| 1078 | this.low,
|
---|
| 1079 | this.high,
|
---|
| 1080 | divisor.low,
|
---|
| 1081 | divisor.high
|
---|
| 1082 | );
|
---|
| 1083 | return fromBits(low, wasm["get_high"](), this.unsigned);
|
---|
| 1084 | }
|
---|
| 1085 |
|
---|
| 1086 | return this.sub(this.div(divisor).mul(divisor));
|
---|
| 1087 | };
|
---|
| 1088 |
|
---|
| 1089 | /**
|
---|
| 1090 | * Returns this Long modulo the specified. This is an alias of {@link Long#modulo}.
|
---|
| 1091 | * @function
|
---|
| 1092 | * @param {!Long|number|string} divisor Divisor
|
---|
| 1093 | * @returns {!Long} Remainder
|
---|
| 1094 | */
|
---|
| 1095 | LongPrototype.mod = LongPrototype.modulo;
|
---|
| 1096 |
|
---|
| 1097 | /**
|
---|
| 1098 | * Returns this Long modulo the specified. This is an alias of {@link Long#modulo}.
|
---|
| 1099 | * @function
|
---|
| 1100 | * @param {!Long|number|string} divisor Divisor
|
---|
| 1101 | * @returns {!Long} Remainder
|
---|
| 1102 | */
|
---|
| 1103 | LongPrototype.rem = LongPrototype.modulo;
|
---|
| 1104 |
|
---|
| 1105 | /**
|
---|
| 1106 | * Returns the bitwise NOT of this Long.
|
---|
| 1107 | * @this {!Long}
|
---|
| 1108 | * @returns {!Long}
|
---|
| 1109 | */
|
---|
| 1110 | LongPrototype.not = function not() {
|
---|
| 1111 | return fromBits(~this.low, ~this.high, this.unsigned);
|
---|
| 1112 | };
|
---|
| 1113 |
|
---|
| 1114 | /**
|
---|
| 1115 | * Returns the bitwise AND of this Long and the specified.
|
---|
| 1116 | * @this {!Long}
|
---|
| 1117 | * @param {!Long|number|string} other Other Long
|
---|
| 1118 | * @returns {!Long}
|
---|
| 1119 | */
|
---|
| 1120 | LongPrototype.and = function and(other) {
|
---|
| 1121 | if (!isLong(other))
|
---|
| 1122 | other = fromValue(other);
|
---|
| 1123 | return fromBits(this.low & other.low, this.high & other.high, this.unsigned);
|
---|
| 1124 | };
|
---|
| 1125 |
|
---|
| 1126 | /**
|
---|
| 1127 | * Returns the bitwise OR of this Long and the specified.
|
---|
| 1128 | * @this {!Long}
|
---|
| 1129 | * @param {!Long|number|string} other Other Long
|
---|
| 1130 | * @returns {!Long}
|
---|
| 1131 | */
|
---|
| 1132 | LongPrototype.or = function or(other) {
|
---|
| 1133 | if (!isLong(other))
|
---|
| 1134 | other = fromValue(other);
|
---|
| 1135 | return fromBits(this.low | other.low, this.high | other.high, this.unsigned);
|
---|
| 1136 | };
|
---|
| 1137 |
|
---|
| 1138 | /**
|
---|
| 1139 | * Returns the bitwise XOR of this Long and the given one.
|
---|
| 1140 | * @this {!Long}
|
---|
| 1141 | * @param {!Long|number|string} other Other Long
|
---|
| 1142 | * @returns {!Long}
|
---|
| 1143 | */
|
---|
| 1144 | LongPrototype.xor = function xor(other) {
|
---|
| 1145 | if (!isLong(other))
|
---|
| 1146 | other = fromValue(other);
|
---|
| 1147 | return fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned);
|
---|
| 1148 | };
|
---|
| 1149 |
|
---|
| 1150 | /**
|
---|
| 1151 | * Returns this Long with bits shifted to the left by the given amount.
|
---|
| 1152 | * @this {!Long}
|
---|
| 1153 | * @param {number|!Long} numBits Number of bits
|
---|
| 1154 | * @returns {!Long} Shifted Long
|
---|
| 1155 | */
|
---|
| 1156 | LongPrototype.shiftLeft = function shiftLeft(numBits) {
|
---|
| 1157 | if (isLong(numBits))
|
---|
| 1158 | numBits = numBits.toInt();
|
---|
| 1159 | if ((numBits &= 63) === 0)
|
---|
| 1160 | return this;
|
---|
| 1161 | else if (numBits < 32)
|
---|
| 1162 | return fromBits(this.low << numBits, (this.high << numBits) | (this.low >>> (32 - numBits)), this.unsigned);
|
---|
| 1163 | else
|
---|
| 1164 | return fromBits(0, this.low << (numBits - 32), this.unsigned);
|
---|
| 1165 | };
|
---|
| 1166 |
|
---|
| 1167 | /**
|
---|
| 1168 | * Returns this Long with bits shifted to the left by the given amount. This is an alias of {@link Long#shiftLeft}.
|
---|
| 1169 | * @function
|
---|
| 1170 | * @param {number|!Long} numBits Number of bits
|
---|
| 1171 | * @returns {!Long} Shifted Long
|
---|
| 1172 | */
|
---|
| 1173 | LongPrototype.shl = LongPrototype.shiftLeft;
|
---|
| 1174 |
|
---|
| 1175 | /**
|
---|
| 1176 | * Returns this Long with bits arithmetically shifted to the right by the given amount.
|
---|
| 1177 | * @this {!Long}
|
---|
| 1178 | * @param {number|!Long} numBits Number of bits
|
---|
| 1179 | * @returns {!Long} Shifted Long
|
---|
| 1180 | */
|
---|
| 1181 | LongPrototype.shiftRight = function shiftRight(numBits) {
|
---|
| 1182 | if (isLong(numBits))
|
---|
| 1183 | numBits = numBits.toInt();
|
---|
| 1184 | if ((numBits &= 63) === 0)
|
---|
| 1185 | return this;
|
---|
| 1186 | else if (numBits < 32)
|
---|
| 1187 | return fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >> numBits, this.unsigned);
|
---|
| 1188 | else
|
---|
| 1189 | return fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned);
|
---|
| 1190 | };
|
---|
| 1191 |
|
---|
| 1192 | /**
|
---|
| 1193 | * Returns this Long with bits arithmetically shifted to the right by the given amount. This is an alias of {@link Long#shiftRight}.
|
---|
| 1194 | * @function
|
---|
| 1195 | * @param {number|!Long} numBits Number of bits
|
---|
| 1196 | * @returns {!Long} Shifted Long
|
---|
| 1197 | */
|
---|
| 1198 | LongPrototype.shr = LongPrototype.shiftRight;
|
---|
| 1199 |
|
---|
| 1200 | /**
|
---|
| 1201 | * Returns this Long with bits logically shifted to the right by the given amount.
|
---|
| 1202 | * @this {!Long}
|
---|
| 1203 | * @param {number|!Long} numBits Number of bits
|
---|
| 1204 | * @returns {!Long} Shifted Long
|
---|
| 1205 | */
|
---|
| 1206 | LongPrototype.shiftRightUnsigned = function shiftRightUnsigned(numBits) {
|
---|
| 1207 | if (isLong(numBits)) numBits = numBits.toInt();
|
---|
| 1208 | if ((numBits &= 63) === 0) return this;
|
---|
| 1209 | if (numBits < 32) return fromBits((this.low >>> numBits) | (this.high << (32 - numBits)), this.high >>> numBits, this.unsigned);
|
---|
| 1210 | if (numBits === 32) return fromBits(this.high, 0, this.unsigned);
|
---|
| 1211 | return fromBits(this.high >>> (numBits - 32), 0, this.unsigned);
|
---|
| 1212 | };
|
---|
| 1213 |
|
---|
| 1214 | /**
|
---|
| 1215 | * Returns this Long with bits logically shifted to the right by the given amount. This is an alias of {@link Long#shiftRightUnsigned}.
|
---|
| 1216 | * @function
|
---|
| 1217 | * @param {number|!Long} numBits Number of bits
|
---|
| 1218 | * @returns {!Long} Shifted Long
|
---|
| 1219 | */
|
---|
| 1220 | LongPrototype.shru = LongPrototype.shiftRightUnsigned;
|
---|
| 1221 |
|
---|
| 1222 | /**
|
---|
| 1223 | * Returns this Long with bits logically shifted to the right by the given amount. This is an alias of {@link Long#shiftRightUnsigned}.
|
---|
| 1224 | * @function
|
---|
| 1225 | * @param {number|!Long} numBits Number of bits
|
---|
| 1226 | * @returns {!Long} Shifted Long
|
---|
| 1227 | */
|
---|
| 1228 | LongPrototype.shr_u = LongPrototype.shiftRightUnsigned;
|
---|
| 1229 |
|
---|
| 1230 | /**
|
---|
| 1231 | * Returns this Long with bits rotated to the left by the given amount.
|
---|
| 1232 | * @this {!Long}
|
---|
| 1233 | * @param {number|!Long} numBits Number of bits
|
---|
| 1234 | * @returns {!Long} Rotated Long
|
---|
| 1235 | */
|
---|
| 1236 | LongPrototype.rotateLeft = function rotateLeft(numBits) {
|
---|
| 1237 | var b;
|
---|
| 1238 | if (isLong(numBits)) numBits = numBits.toInt();
|
---|
| 1239 | if ((numBits &= 63) === 0) return this;
|
---|
| 1240 | if (numBits === 32) return fromBits(this.high, this.low, this.unsigned);
|
---|
| 1241 | if (numBits < 32) {
|
---|
| 1242 | b = (32 - numBits);
|
---|
| 1243 | return fromBits(((this.low << numBits) | (this.high >>> b)), ((this.high << numBits) | (this.low >>> b)), this.unsigned);
|
---|
| 1244 | }
|
---|
| 1245 | numBits -= 32;
|
---|
| 1246 | b = (32 - numBits);
|
---|
| 1247 | return fromBits(((this.high << numBits) | (this.low >>> b)), ((this.low << numBits) | (this.high >>> b)), this.unsigned);
|
---|
| 1248 | }
|
---|
| 1249 | /**
|
---|
| 1250 | * Returns this Long with bits rotated to the left by the given amount. This is an alias of {@link Long#rotateLeft}.
|
---|
| 1251 | * @function
|
---|
| 1252 | * @param {number|!Long} numBits Number of bits
|
---|
| 1253 | * @returns {!Long} Rotated Long
|
---|
| 1254 | */
|
---|
| 1255 | LongPrototype.rotl = LongPrototype.rotateLeft;
|
---|
| 1256 |
|
---|
| 1257 | /**
|
---|
| 1258 | * Returns this Long with bits rotated to the right by the given amount.
|
---|
| 1259 | * @this {!Long}
|
---|
| 1260 | * @param {number|!Long} numBits Number of bits
|
---|
| 1261 | * @returns {!Long} Rotated Long
|
---|
| 1262 | */
|
---|
| 1263 | LongPrototype.rotateRight = function rotateRight(numBits) {
|
---|
| 1264 | var b;
|
---|
| 1265 | if (isLong(numBits)) numBits = numBits.toInt();
|
---|
| 1266 | if ((numBits &= 63) === 0) return this;
|
---|
| 1267 | if (numBits === 32) return fromBits(this.high, this.low, this.unsigned);
|
---|
| 1268 | if (numBits < 32) {
|
---|
| 1269 | b = (32 - numBits);
|
---|
| 1270 | return fromBits(((this.high << b) | (this.low >>> numBits)), ((this.low << b) | (this.high >>> numBits)), this.unsigned);
|
---|
| 1271 | }
|
---|
| 1272 | numBits -= 32;
|
---|
| 1273 | b = (32 - numBits);
|
---|
| 1274 | return fromBits(((this.low << b) | (this.high >>> numBits)), ((this.high << b) | (this.low >>> numBits)), this.unsigned);
|
---|
| 1275 | }
|
---|
| 1276 | /**
|
---|
| 1277 | * Returns this Long with bits rotated to the right by the given amount. This is an alias of {@link Long#rotateRight}.
|
---|
| 1278 | * @function
|
---|
| 1279 | * @param {number|!Long} numBits Number of bits
|
---|
| 1280 | * @returns {!Long} Rotated Long
|
---|
| 1281 | */
|
---|
| 1282 | LongPrototype.rotr = LongPrototype.rotateRight;
|
---|
| 1283 |
|
---|
| 1284 | /**
|
---|
| 1285 | * Converts this Long to signed.
|
---|
| 1286 | * @this {!Long}
|
---|
| 1287 | * @returns {!Long} Signed long
|
---|
| 1288 | */
|
---|
| 1289 | LongPrototype.toSigned = function toSigned() {
|
---|
| 1290 | if (!this.unsigned)
|
---|
| 1291 | return this;
|
---|
| 1292 | return fromBits(this.low, this.high, false);
|
---|
| 1293 | };
|
---|
| 1294 |
|
---|
| 1295 | /**
|
---|
| 1296 | * Converts this Long to unsigned.
|
---|
| 1297 | * @this {!Long}
|
---|
| 1298 | * @returns {!Long} Unsigned long
|
---|
| 1299 | */
|
---|
| 1300 | LongPrototype.toUnsigned = function toUnsigned() {
|
---|
| 1301 | if (this.unsigned)
|
---|
| 1302 | return this;
|
---|
| 1303 | return fromBits(this.low, this.high, true);
|
---|
| 1304 | };
|
---|
| 1305 |
|
---|
| 1306 | /**
|
---|
| 1307 | * Converts this Long to its byte representation.
|
---|
| 1308 | * @param {boolean=} le Whether little or big endian, defaults to big endian
|
---|
| 1309 | * @this {!Long}
|
---|
| 1310 | * @returns {!Array.<number>} Byte representation
|
---|
| 1311 | */
|
---|
| 1312 | LongPrototype.toBytes = function toBytes(le) {
|
---|
| 1313 | return le ? this.toBytesLE() : this.toBytesBE();
|
---|
| 1314 | };
|
---|
| 1315 |
|
---|
| 1316 | /**
|
---|
| 1317 | * Converts this Long to its little endian byte representation.
|
---|
| 1318 | * @this {!Long}
|
---|
| 1319 | * @returns {!Array.<number>} Little endian byte representation
|
---|
| 1320 | */
|
---|
| 1321 | LongPrototype.toBytesLE = function toBytesLE() {
|
---|
| 1322 | var hi = this.high,
|
---|
| 1323 | lo = this.low;
|
---|
| 1324 | return [
|
---|
| 1325 | lo & 0xff,
|
---|
| 1326 | lo >>> 8 & 0xff,
|
---|
| 1327 | lo >>> 16 & 0xff,
|
---|
| 1328 | lo >>> 24 ,
|
---|
| 1329 | hi & 0xff,
|
---|
| 1330 | hi >>> 8 & 0xff,
|
---|
| 1331 | hi >>> 16 & 0xff,
|
---|
| 1332 | hi >>> 24
|
---|
| 1333 | ];
|
---|
| 1334 | };
|
---|
| 1335 |
|
---|
| 1336 | /**
|
---|
| 1337 | * Converts this Long to its big endian byte representation.
|
---|
| 1338 | * @this {!Long}
|
---|
| 1339 | * @returns {!Array.<number>} Big endian byte representation
|
---|
| 1340 | */
|
---|
| 1341 | LongPrototype.toBytesBE = function toBytesBE() {
|
---|
| 1342 | var hi = this.high,
|
---|
| 1343 | lo = this.low;
|
---|
| 1344 | return [
|
---|
| 1345 | hi >>> 24 ,
|
---|
| 1346 | hi >>> 16 & 0xff,
|
---|
| 1347 | hi >>> 8 & 0xff,
|
---|
| 1348 | hi & 0xff,
|
---|
| 1349 | lo >>> 24 ,
|
---|
| 1350 | lo >>> 16 & 0xff,
|
---|
| 1351 | lo >>> 8 & 0xff,
|
---|
| 1352 | lo & 0xff
|
---|
| 1353 | ];
|
---|
| 1354 | };
|
---|
| 1355 |
|
---|
| 1356 | /**
|
---|
| 1357 | * Creates a Long from its byte representation.
|
---|
| 1358 | * @param {!Array.<number>} bytes Byte representation
|
---|
| 1359 | * @param {boolean=} unsigned Whether unsigned or not, defaults to signed
|
---|
| 1360 | * @param {boolean=} le Whether little or big endian, defaults to big endian
|
---|
| 1361 | * @returns {Long} The corresponding Long value
|
---|
| 1362 | */
|
---|
| 1363 | Long.fromBytes = function fromBytes(bytes, unsigned, le) {
|
---|
| 1364 | return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned);
|
---|
| 1365 | };
|
---|
| 1366 |
|
---|
| 1367 | /**
|
---|
| 1368 | * Creates a Long from its little endian byte representation.
|
---|
| 1369 | * @param {!Array.<number>} bytes Little endian byte representation
|
---|
| 1370 | * @param {boolean=} unsigned Whether unsigned or not, defaults to signed
|
---|
| 1371 | * @returns {Long} The corresponding Long value
|
---|
| 1372 | */
|
---|
| 1373 | Long.fromBytesLE = function fromBytesLE(bytes, unsigned) {
|
---|
| 1374 | return new Long(
|
---|
| 1375 | bytes[0] |
|
---|
| 1376 | bytes[1] << 8 |
|
---|
| 1377 | bytes[2] << 16 |
|
---|
| 1378 | bytes[3] << 24,
|
---|
| 1379 | bytes[4] |
|
---|
| 1380 | bytes[5] << 8 |
|
---|
| 1381 | bytes[6] << 16 |
|
---|
| 1382 | bytes[7] << 24,
|
---|
| 1383 | unsigned
|
---|
| 1384 | );
|
---|
| 1385 | };
|
---|
| 1386 |
|
---|
| 1387 | /**
|
---|
| 1388 | * Creates a Long from its big endian byte representation.
|
---|
| 1389 | * @param {!Array.<number>} bytes Big endian byte representation
|
---|
| 1390 | * @param {boolean=} unsigned Whether unsigned or not, defaults to signed
|
---|
| 1391 | * @returns {Long} The corresponding Long value
|
---|
| 1392 | */
|
---|
| 1393 | Long.fromBytesBE = function fromBytesBE(bytes, unsigned) {
|
---|
| 1394 | return new Long(
|
---|
| 1395 | bytes[4] << 24 |
|
---|
| 1396 | bytes[5] << 16 |
|
---|
| 1397 | bytes[6] << 8 |
|
---|
| 1398 | bytes[7],
|
---|
| 1399 | bytes[0] << 24 |
|
---|
| 1400 | bytes[1] << 16 |
|
---|
| 1401 | bytes[2] << 8 |
|
---|
| 1402 | bytes[3],
|
---|
| 1403 | unsigned
|
---|
| 1404 | );
|
---|
| 1405 | };
|
---|