diff options
| -rw-r--r-- | src/long.js | 2804 |
1 files changed, 1402 insertions, 1402 deletions
diff --git a/src/long.js b/src/long.js index 71cffa79..d5770e48 100644 --- a/src/long.js +++ b/src/long.js @@ -24,1609 +24,1609 @@ */ var i64Math = (function() { // Emscripten wrapper -var goog = { math: {} }; + var goog = { math: {} }; -/** - * Constructs a 64-bit two's-complement integer, given its low and high 32-bit - * values as *signed* integers. See the from* functions below for more - * convenient ways of constructing Longs. - * - * The internal representation of a long is the two given signed, 32-bit values. - * We use 32-bit pieces because these are the size of integers on which - * Javascript performs bit-operations. For operations like addition and - * multiplication, we split each number into 16-bit pieces, which can easily be - * multiplied within Javascript's floating-point representation without overflow - * or change in sign. - * - * In the algorithms below, we frequently reduce the negative case to the - * positive case by negating the input(s) and then post-processing the result. - * Note that we must ALWAYS check specially whether those values are MIN_VALUE - * (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as - * a positive number, it overflows back into a negative). Not handling this - * case would often result in infinite recursion. - * - * @param {number} low The low (signed) 32 bits of the long. - * @param {number} high The high (signed) 32 bits of the long. - * @constructor - */ -goog.math.Long = function(low, high) { /** - * @type {number} - * @private + * Constructs a 64-bit two's-complement integer, given its low and high 32-bit + * values as *signed* integers. See the from* functions below for more + * convenient ways of constructing Longs. + * + * The internal representation of a long is the two given signed, 32-bit values. + * We use 32-bit pieces because these are the size of integers on which + * Javascript performs bit-operations. For operations like addition and + * multiplication, we split each number into 16-bit pieces, which can easily be + * multiplied within Javascript's floating-point representation without overflow + * or change in sign. + * + * In the algorithms below, we frequently reduce the negative case to the + * positive case by negating the input(s) and then post-processing the result. + * Note that we must ALWAYS check specially whether those values are MIN_VALUE + * (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as + * a positive number, it overflows back into a negative). Not handling this + * case would often result in infinite recursion. + * + * @param {number} low The low (signed) 32 bits of the long. + * @param {number} high The high (signed) 32 bits of the long. + * @constructor */ - this.low_ = low | 0; // force into 32 signed bits. + goog.math.Long = function(low, high) { + /** + * @type {number} + * @private + */ + this.low_ = low | 0; // force into 32 signed bits. - /** - * @type {number} - * @private - */ - this.high_ = high | 0; // force into 32 signed bits. -}; + /** + * @type {number} + * @private + */ + this.high_ = high | 0; // force into 32 signed bits. + }; -// NOTE: Common constant values ZERO, ONE, NEG_ONE, etc. are defined below the -// from* methods on which they depend. + // NOTE: Common constant values ZERO, ONE, NEG_ONE, etc. are defined below the + // from* methods on which they depend. -/** - * A cache of the Long representations of small integer values. - * @type {!Object} - * @private - */ -goog.math.Long.IntCache_ = {}; + /** + * A cache of the Long representations of small integer values. + * @type {!Object} + * @private + */ + goog.math.Long.IntCache_ = {}; -/** - * Returns a Long representing the given (32-bit) integer value. - * @param {number} value The 32-bit integer in question. - * @return {!goog.math.Long} The corresponding Long value. - */ -goog.math.Long.fromInt = function(value) { - if (-128 <= value && value < 128) { - var cachedObj = goog.math.Long.IntCache_[value]; - if (cachedObj) { - return cachedObj; + /** + * Returns a Long representing the given (32-bit) integer value. + * @param {number} value The 32-bit integer in question. + * @return {!goog.math.Long} The corresponding Long value. + */ + goog.math.Long.fromInt = function(value) { + if (-128 <= value && value < 128) { + var cachedObj = goog.math.Long.IntCache_[value]; + if (cachedObj) { + return cachedObj; + } } - } - var obj = new goog.math.Long(value | 0, value < 0 ? -1 : 0); - if (-128 <= value && value < 128) { - goog.math.Long.IntCache_[value] = obj; - } - return obj; -}; + var obj = new goog.math.Long(value | 0, value < 0 ? -1 : 0); + if (-128 <= value && value < 128) { + goog.math.Long.IntCache_[value] = obj; + } + return obj; + }; -/** - * Returns a Long representing the given value, provided that it is a finite - * number. Otherwise, zero is returned. - * @param {number} value The number in question. - * @return {!goog.math.Long} The corresponding Long value. - */ -goog.math.Long.fromNumber = function(value) { - if (isNaN(value) || !isFinite(value)) { - return goog.math.Long.ZERO; - } else if (value <= -goog.math.Long.TWO_PWR_63_DBL_) { - return goog.math.Long.MIN_VALUE; - } else if (value + 1 >= goog.math.Long.TWO_PWR_63_DBL_) { - return goog.math.Long.MAX_VALUE; - } else if (value < 0) { - return goog.math.Long.fromNumber(-value).negate(); - } else { - return new goog.math.Long( - (value % goog.math.Long.TWO_PWR_32_DBL_) | 0, - (value / goog.math.Long.TWO_PWR_32_DBL_) | 0); - } -}; + /** + * Returns a Long representing the given value, provided that it is a finite + * number. Otherwise, zero is returned. + * @param {number} value The number in question. + * @return {!goog.math.Long} The corresponding Long value. + */ + goog.math.Long.fromNumber = function(value) { + if (isNaN(value) || !isFinite(value)) { + return goog.math.Long.ZERO; + } else if (value <= -goog.math.Long.TWO_PWR_63_DBL_) { + return goog.math.Long.MIN_VALUE; + } else if (value + 1 >= goog.math.Long.TWO_PWR_63_DBL_) { + return goog.math.Long.MAX_VALUE; + } else if (value < 0) { + return goog.math.Long.fromNumber(-value).negate(); + } else { + return new goog.math.Long( + (value % goog.math.Long.TWO_PWR_32_DBL_) | 0, + (value / goog.math.Long.TWO_PWR_32_DBL_) | 0); + } + }; -/** - * Returns a Long representing the 64-bit integer that comes by concatenating - * the given high and low bits. Each is assumed to use 32 bits. - * @param {number} lowBits The low 32-bits. - * @param {number} highBits The high 32-bits. - * @return {!goog.math.Long} The corresponding Long value. - */ -goog.math.Long.fromBits = function(lowBits, highBits) { - return new goog.math.Long(lowBits, highBits); -}; + /** + * Returns a Long representing the 64-bit integer that comes by concatenating + * the given high and low bits. Each is assumed to use 32 bits. + * @param {number} lowBits The low 32-bits. + * @param {number} highBits The high 32-bits. + * @return {!goog.math.Long} The corresponding Long value. + */ + goog.math.Long.fromBits = function(lowBits, highBits) { + return new goog.math.Long(lowBits, highBits); + }; -/** - * Returns a Long representation of the given string, written using the given - * radix. - * @param {string} str The textual representation of the Long. - * @param {number=} opt_radix The radix in which the text is written. - * @return {!goog.math.Long} The corresponding Long value. - */ -goog.math.Long.fromString = function(str, opt_radix) { - if (str.length == 0) { - throw Error('number format error: empty string'); - } + /** + * Returns a Long representation of the given string, written using the given + * radix. + * @param {string} str The textual representation of the Long. + * @param {number=} opt_radix The radix in which the text is written. + * @return {!goog.math.Long} The corresponding Long value. + */ + goog.math.Long.fromString = function(str, opt_radix) { + if (str.length == 0) { + throw Error('number format error: empty string'); + } - var radix = opt_radix || 10; - if (radix < 2 || 36 < radix) { - throw Error('radix out of range: ' + radix); - } + var radix = opt_radix || 10; + if (radix < 2 || 36 < radix) { + throw Error('radix out of range: ' + radix); + } - if (str.charAt(0) == '-') { - return goog.math.Long.fromString(str.substring(1), radix).negate(); - } else if (str.indexOf('-') >= 0) { - throw Error('number format error: interior "-" character: ' + str); - } + if (str.charAt(0) == '-') { + return goog.math.Long.fromString(str.substring(1), radix).negate(); + } else if (str.indexOf('-') >= 0) { + throw Error('number format error: interior "-" character: ' + str); + } - // Do several (8) digits each time through the loop, so as to - // minimize the calls to the very expensive emulated div. - var radixToPower = goog.math.Long.fromNumber(Math.pow(radix, 8)); - - var result = goog.math.Long.ZERO; - for (var i = 0; i < str.length; i += 8) { - var size = Math.min(8, str.length - i); - var value = parseInt(str.substring(i, i + size), radix); - if (size < 8) { - var power = goog.math.Long.fromNumber(Math.pow(radix, size)); - result = result.multiply(power).add(goog.math.Long.fromNumber(value)); - } else { - result = result.multiply(radixToPower); - result = result.add(goog.math.Long.fromNumber(value)); + // Do several (8) digits each time through the loop, so as to + // minimize the calls to the very expensive emulated div. + var radixToPower = goog.math.Long.fromNumber(Math.pow(radix, 8)); + + var result = goog.math.Long.ZERO; + for (var i = 0; i < str.length; i += 8) { + var size = Math.min(8, str.length - i); + var value = parseInt(str.substring(i, i + size), radix); + if (size < 8) { + var power = goog.math.Long.fromNumber(Math.pow(radix, size)); + result = result.multiply(power).add(goog.math.Long.fromNumber(value)); + } else { + result = result.multiply(radixToPower); + result = result.add(goog.math.Long.fromNumber(value)); + } } - } - return result; -}; + return result; + }; -// NOTE: the compiler should inline these constant values below and then remove -// these variables, so there should be no runtime penalty for these. + // NOTE: the compiler should inline these constant values below and then remove + // these variables, so there should be no runtime penalty for these. -/** - * Number used repeated below in calculations. This must appear before the - * first call to any from* function below. - * @type {number} - * @private - */ -goog.math.Long.TWO_PWR_16_DBL_ = 1 << 16; + /** + * Number used repeated below in calculations. This must appear before the + * first call to any from* function below. + * @type {number} + * @private + */ + goog.math.Long.TWO_PWR_16_DBL_ = 1 << 16; -/** - * @type {number} - * @private - */ -goog.math.Long.TWO_PWR_24_DBL_ = 1 << 24; + /** + * @type {number} + * @private + */ + goog.math.Long.TWO_PWR_24_DBL_ = 1 << 24; -/** - * @type {number} - * @private - */ -goog.math.Long.TWO_PWR_32_DBL_ = - goog.math.Long.TWO_PWR_16_DBL_ * goog.math.Long.TWO_PWR_16_DBL_; + /** + * @type {number} + * @private + */ + goog.math.Long.TWO_PWR_32_DBL_ = + goog.math.Long.TWO_PWR_16_DBL_ * goog.math.Long.TWO_PWR_16_DBL_; -/** - * @type {number} - * @private - */ -goog.math.Long.TWO_PWR_31_DBL_ = - goog.math.Long.TWO_PWR_32_DBL_ / 2; + /** + * @type {number} + * @private + */ + goog.math.Long.TWO_PWR_31_DBL_ = + goog.math.Long.TWO_PWR_32_DBL_ / 2; -/** - * @type {number} - * @private - */ -goog.math.Long.TWO_PWR_48_DBL_ = - goog.math.Long.TWO_PWR_32_DBL_ * goog.math.Long.TWO_PWR_16_DBL_; + /** + * @type {number} + * @private + */ + goog.math.Long.TWO_PWR_48_DBL_ = + goog.math.Long.TWO_PWR_32_DBL_ * goog.math.Long.TWO_PWR_16_DBL_; -/** - * @type {number} - * @private - */ -goog.math.Long.TWO_PWR_64_DBL_ = - goog.math.Long.TWO_PWR_32_DBL_ * goog.math.Long.TWO_PWR_32_DBL_; + /** + * @type {number} + * @private + */ + goog.math.Long.TWO_PWR_64_DBL_ = + goog.math.Long.TWO_PWR_32_DBL_ * goog.math.Long.TWO_PWR_32_DBL_; -/** - * @type {number} - * @private - */ -goog.math.Long.TWO_PWR_63_DBL_ = - goog.math.Long.TWO_PWR_64_DBL_ / 2; + /** + * @type {number} + * @private + */ + goog.math.Long.TWO_PWR_63_DBL_ = + goog.math.Long.TWO_PWR_64_DBL_ / 2; -/** @type {!goog.math.Long} */ -goog.math.Long.ZERO = goog.math.Long.fromInt(0); + /** @type {!goog.math.Long} */ + goog.math.Long.ZERO = goog.math.Long.fromInt(0); -/** @type {!goog.math.Long} */ -goog.math.Long.ONE = goog.math.Long.fromInt(1); + /** @type {!goog.math.Long} */ + goog.math.Long.ONE = goog.math.Long.fromInt(1); -/** @type {!goog.math.Long} */ -goog.math.Long.NEG_ONE = goog.math.Long.fromInt(-1); + /** @type {!goog.math.Long} */ + goog.math.Long.NEG_ONE = goog.math.Long.fromInt(-1); -/** @type {!goog.math.Long} */ -goog.math.Long.MAX_VALUE = - goog.math.Long.fromBits(0xFFFFFFFF | 0, 0x7FFFFFFF | 0); + /** @type {!goog.math.Long} */ + goog.math.Long.MAX_VALUE = + goog.math.Long.fromBits(0xFFFFFFFF | 0, 0x7FFFFFFF | 0); -/** @type {!goog.math.Long} */ -goog.math.Long.MIN_VALUE = goog.math.Long.fromBits(0, 0x80000000 | 0); + /** @type {!goog.math.Long} */ + goog.math.Long.MIN_VALUE = goog.math.Long.fromBits(0, 0x80000000 | 0); -/** - * @type {!goog.math.Long} - * @private - */ -goog.math.Long.TWO_PWR_24_ = goog.math.Long.fromInt(1 << 24); + /** + * @type {!goog.math.Long} + * @private + */ + goog.math.Long.TWO_PWR_24_ = goog.math.Long.fromInt(1 << 24); -/** @return {number} The value, assuming it is a 32-bit integer. */ -goog.math.Long.prototype.toInt = function() { - return this.low_; -}; + /** @return {number} The value, assuming it is a 32-bit integer. */ + goog.math.Long.prototype.toInt = function() { + return this.low_; + }; -/** @return {number} The closest floating-point representation to this value. */ -goog.math.Long.prototype.toNumber = function() { - return this.high_ * goog.math.Long.TWO_PWR_32_DBL_ + - this.getLowBitsUnsigned(); -}; + /** @return {number} The closest floating-point representation to this value. */ + goog.math.Long.prototype.toNumber = function() { + return this.high_ * goog.math.Long.TWO_PWR_32_DBL_ + + this.getLowBitsUnsigned(); + }; -/** - * @param {number=} opt_radix The radix in which the text should be written. - * @return {string} The textual representation of this value. - */ -goog.math.Long.prototype.toString = function(opt_radix) { - var radix = opt_radix || 10; - if (radix < 2 || 36 < radix) { - throw Error('radix out of range: ' + radix); - } + /** + * @param {number=} opt_radix The radix in which the text should be written. + * @return {string} The textual representation of this value. + */ + goog.math.Long.prototype.toString = function(opt_radix) { + var radix = opt_radix || 10; + if (radix < 2 || 36 < radix) { + throw Error('radix out of range: ' + radix); + } - if (this.isZero()) { - return '0'; - } + if (this.isZero()) { + return '0'; + } - if (this.isNegative()) { - if (this.equals(goog.math.Long.MIN_VALUE)) { - // We need to change the Long value before it can be negated, so we remove - // the bottom-most digit in this base and then recurse to do the rest. - var radixLong = goog.math.Long.fromNumber(radix); - var div = this.div(radixLong); - var rem = div.multiply(radixLong).subtract(this); - return div.toString(radix) + rem.toInt().toString(radix); - } else { - return '-' + this.negate().toString(radix); + if (this.isNegative()) { + if (this.equals(goog.math.Long.MIN_VALUE)) { + // We need to change the Long value before it can be negated, so we remove + // the bottom-most digit in this base and then recurse to do the rest. + var radixLong = goog.math.Long.fromNumber(radix); + var div = this.div(radixLong); + var rem = div.multiply(radixLong).subtract(this); + return div.toString(radix) + rem.toInt().toString(radix); + } else { + return '-' + this.negate().toString(radix); + } } - } - // Do several (6) digits each time through the loop, so as to - // minimize the calls to the very expensive emulated div. - var radixToPower = goog.math.Long.fromNumber(Math.pow(radix, 6)); + // Do several (6) digits each time through the loop, so as to + // minimize the calls to the very expensive emulated div. + var radixToPower = goog.math.Long.fromNumber(Math.pow(radix, 6)); - var rem = this; - var result = ''; - while (true) { - var remDiv = rem.div(radixToPower); - var intval = rem.subtract(remDiv.multiply(radixToPower)).toInt(); - var digits = intval.toString(radix); + var rem = this; + var result = ''; + while (true) { + var remDiv = rem.div(radixToPower); + var intval = rem.subtract(remDiv.multiply(radixToPower)).toInt(); + var digits = intval.toString(radix); - rem = remDiv; - if (rem.isZero()) { - return digits + result; - } else { - while (digits.length < 6) { - digits = '0' + digits; + rem = remDiv; + if (rem.isZero()) { + return digits + result; + } else { + while (digits.length < 6) { + digits = '0' + digits; + } + result = '' + digits + result; } - result = '' + digits + result; } - } -}; + }; -/** @return {number} The high 32-bits as a signed value. */ -goog.math.Long.prototype.getHighBits = function() { - return this.high_; -}; + /** @return {number} The high 32-bits as a signed value. */ + goog.math.Long.prototype.getHighBits = function() { + return this.high_; + }; -/** @return {number} The low 32-bits as a signed value. */ -goog.math.Long.prototype.getLowBits = function() { - return this.low_; -}; + /** @return {number} The low 32-bits as a signed value. */ + goog.math.Long.prototype.getLowBits = function() { + return this.low_; + }; -/** @return {number} The low 32-bits as an unsigned value. */ -goog.math.Long.prototype.getLowBitsUnsigned = function() { - return (this.low_ >= 0) ? - this.low_ : goog.math.Long.TWO_PWR_32_DBL_ + this.low_; -}; + /** @return {number} The low 32-bits as an unsigned value. */ + goog.math.Long.prototype.getLowBitsUnsigned = function() { + return (this.low_ >= 0) ? + this.low_ : goog.math.Long.TWO_PWR_32_DBL_ + this.low_; + }; -/** - * @return {number} Returns the number of bits needed to represent the absolute - * value of this Long. - */ -goog.math.Long.prototype.getNumBitsAbs = function() { - if (this.isNegative()) { - if (this.equals(goog.math.Long.MIN_VALUE)) { - return 64; + /** + * @return {number} Returns the number of bits needed to represent the absolute + * value of this Long. + */ + goog.math.Long.prototype.getNumBitsAbs = function() { + if (this.isNegative()) { + if (this.equals(goog.math.Long.MIN_VALUE)) { + return 64; + } else { + return this.negate().getNumBitsAbs(); + } } else { - return this.negate().getNumBitsAbs(); - } - } else { - var val = this.high_ != 0 ? this.high_ : this.low_; - for (var bit = 31; bit > 0; bit--) { - if ((val & (1 << bit)) != 0) { - break; + var val = this.high_ != 0 ? this.high_ : this.low_; + for (var bit = 31; bit > 0; bit--) { + if ((val & (1 << bit)) != 0) { + break; + } } + return this.high_ != 0 ? bit + 33 : bit + 1; } - return this.high_ != 0 ? bit + 33 : bit + 1; - } -}; + }; -/** @return {boolean} Whether this value is zero. */ -goog.math.Long.prototype.isZero = function() { - return this.high_ == 0 && this.low_ == 0; -}; + /** @return {boolean} Whether this value is zero. */ + goog.math.Long.prototype.isZero = function() { + return this.high_ == 0 && this.low_ == 0; + }; -/** @return {boolean} Whether this value is negative. */ -goog.math.Long.prototype.isNegative = function() { - return this.high_ < 0; -}; + /** @return {boolean} Whether this value is negative. */ + goog.math.Long.prototype.isNegative = function() { + return this.high_ < 0; + }; -/** @return {boolean} Whether this value is odd. */ -goog.math.Long.prototype.isOdd = function() { - return (this.low_ & 1) == 1; -}; + /** @return {boolean} Whether this value is odd. */ + goog.math.Long.prototype.isOdd = function() { + return (this.low_ & 1) == 1; + }; -/** - * @param {goog.math.Long} other Long to compare against. - * @return {boolean} Whether this Long equals the other. - */ -goog.math.Long.prototype.equals = function(other) { - return (this.high_ == other.high_) && (this.low_ == other.low_); -}; + /** + * @param {goog.math.Long} other Long to compare against. + * @return {boolean} Whether this Long equals the other. + */ + goog.math.Long.prototype.equals = function(other) { + return (this.high_ == other.high_) && (this.low_ == other.low_); + }; -/** - * @param {goog.math.Long} other Long to compare against. - * @return {boolean} Whether this Long does not equal the other. - */ -goog.math.Long.prototype.notEquals = function(other) { - return (this.high_ != other.high_) || (this.low_ != other.low_); -}; + /** + * @param {goog.math.Long} other Long to compare against. + * @return {boolean} Whether this Long does not equal the other. + */ + goog.math.Long.prototype.notEquals = function(other) { + return (this.high_ != other.high_) || (this.low_ != other.low_); + }; -/** - * @param {goog.math.Long} other Long to compare against. - * @return {boolean} Whether this Long is less than the other. - */ -goog.math.Long.prototype.lessThan = function(other) { - return this.compare(other) < 0; -}; + /** + * @param {goog.math.Long} other Long to compare against. + * @return {boolean} Whether this Long is less than the other. + */ + goog.math.Long.prototype.lessThan = function(other) { + return this.compare(other) < 0; + }; -/** - * @param {goog.math.Long} other Long to compare against. - * @return {boolean} Whether this Long is less than or equal to the other. - */ -goog.math.Long.prototype.lessThanOrEqual = function(other) { - return this.compare(other) <= 0; -}; + /** + * @param {goog.math.Long} other Long to compare against. + * @return {boolean} Whether this Long is less than or equal to the other. + */ + goog.math.Long.prototype.lessThanOrEqual = function(other) { + return this.compare(other) <= 0; + }; -/** - * @param {goog.math.Long} other Long to compare against. - * @return {boolean} Whether this Long is greater than the other. - */ -goog.math.Long.prototype.greaterThan = function(other) { - return this.compare(other) > 0; -}; + /** + * @param {goog.math.Long} other Long to compare against. + * @return {boolean} Whether this Long is greater than the other. + */ + goog.math.Long.prototype.greaterThan = function(other) { + return this.compare(other) > 0; + }; -/** - * @param {goog.math.Long} other Long to compare against. - * @return {boolean} Whether this Long is greater than or equal to the other. - */ -goog.math.Long.prototype.greaterThanOrEqual = function(other) { - return this.compare(other) >= 0; -}; + /** + * @param {goog.math.Long} other Long to compare against. + * @return {boolean} Whether this Long is greater than or equal to the other. + */ + goog.math.Long.prototype.greaterThanOrEqual = function(other) { + return this.compare(other) >= 0; + }; -/** - * Compares this Long with the given one. - * @param {goog.math.Long} other Long to compare against. - * @return {number} 0 if they are the same, 1 if the this is greater, and -1 - * if the given one is greater. - */ -goog.math.Long.prototype.compare = function(other) { - if (this.equals(other)) { - return 0; - } + /** + * Compares this Long with the given one. + * @param {goog.math.Long} other Long to compare against. + * @return {number} 0 if they are the same, 1 if the this is greater, and -1 + * if the given one is greater. + */ + goog.math.Long.prototype.compare = function(other) { + if (this.equals(other)) { + return 0; + } - var thisNeg = this.isNegative(); - var otherNeg = other.isNegative(); - if (thisNeg && !otherNeg) { - return -1; - } - if (!thisNeg && otherNeg) { - return 1; - } + var thisNeg = this.isNegative(); + var otherNeg = other.isNegative(); + if (thisNeg && !otherNeg) { + return -1; + } + if (!thisNeg && otherNeg) { + return 1; + } - // at this point, the signs are the same, so subtraction will not overflow - if (this.subtract(other).isNegative()) { - return -1; - } else { - return 1; - } -}; + // at this point, the signs are the same, so subtraction will not overflow + if (this.subtract(other).isNegative()) { + return -1; + } else { + return 1; + } + }; -/** @return {!goog.math.Long} The negation of this value. */ -goog.math.Long.prototype.negate = function() { - if (this.equals(goog.math.Long.MIN_VALUE)) { - return goog.math.Long.MIN_VALUE; - } else { - return this.not().add(goog.math.Long.ONE); - } -}; + /** @return {!goog.math.Long} The negation of this value. */ + goog.math.Long.prototype.negate = function() { + if (this.equals(goog.math.Long.MIN_VALUE)) { + return goog.math.Long.MIN_VALUE; + } else { + return this.not().add(goog.math.Long.ONE); + } + }; -/** - * Returns the sum of this and the given Long. - * @param {goog.math.Long} other Long to add to this one. - * @return {!goog.math.Long} The sum of this and the given Long. - */ -goog.math.Long.prototype.add = function(other) { - // Divide each number into 4 chunks of 16 bits, and then sum the chunks. - - var a48 = this.high_ >>> 16; - var a32 = this.high_ & 0xFFFF; - var a16 = this.low_ >>> 16; - var a00 = this.low_ & 0xFFFF; - - var b48 = other.high_ >>> 16; - var b32 = other.high_ & 0xFFFF; - var b16 = other.low_ >>> 16; - var b00 = other.low_ & 0xFFFF; - - var c48 = 0, c32 = 0, c16 = 0, c00 = 0; - c00 += a00 + b00; - c16 += c00 >>> 16; - c00 &= 0xFFFF; - c16 += a16 + b16; - c32 += c16 >>> 16; - c16 &= 0xFFFF; - c32 += a32 + b32; - c48 += c32 >>> 16; - c32 &= 0xFFFF; - c48 += a48 + b48; - c48 &= 0xFFFF; - return goog.math.Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32); -}; + /** + * Returns the sum of this and the given Long. + * @param {goog.math.Long} other Long to add to this one. + * @return {!goog.math.Long} The sum of this and the given Long. + */ + goog.math.Long.prototype.add = function(other) { + // Divide each number into 4 chunks of 16 bits, and then sum the chunks. + + var a48 = this.high_ >>> 16; + var a32 = this.high_ & 0xFFFF; + var a16 = this.low_ >>> 16; + var a00 = this.low_ & 0xFFFF; + + var b48 = other.high_ >>> 16; + var b32 = other.high_ & 0xFFFF; + var b16 = other.low_ >>> 16; + var b00 = other.low_ & 0xFFFF; + + var c48 = 0, c32 = 0, c16 = 0, c00 = 0; + c00 += a00 + b00; + c16 += c00 >>> 16; + c00 &= 0xFFFF; + c16 += a16 + b16; + c32 += c16 >>> 16; + c16 &= 0xFFFF; + c32 += a32 + b32; + c48 += c32 >>> 16; + c32 &= 0xFFFF; + c48 += a48 + b48; + c48 &= 0xFFFF; + return goog.math.Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32); + }; -/** - * Returns the difference of this and the given Long. - * @param {goog.math.Long} other Long to subtract from this. - * @return {!goog.math.Long} The difference of this and the given Long. - */ -goog.math.Long.prototype.subtract = function(other) { - return this.add(other.negate()); -}; + /** + * Returns the difference of this and the given Long. + * @param {goog.math.Long} other Long to subtract from this. + * @return {!goog.math.Long} The difference of this and the given Long. + */ + goog.math.Long.prototype.subtract = function(other) { + return this.add(other.negate()); + }; -/** - * Returns the product of this and the given long. - * @param {goog.math.Long} other Long to multiply with this. - * @return {!goog.math.Long} The product of this and the other. - */ -goog.math.Long.prototype.multiply = function(other) { - if (this.isZero()) { - return goog.math.Long.ZERO; - } else if (other.isZero()) { - return goog.math.Long.ZERO; - } + /** + * Returns the product of this and the given long. + * @param {goog.math.Long} other Long to multiply with this. + * @return {!goog.math.Long} The product of this and the other. + */ + goog.math.Long.prototype.multiply = function(other) { + if (this.isZero()) { + return goog.math.Long.ZERO; + } else if (other.isZero()) { + return goog.math.Long.ZERO; + } - if (this.equals(goog.math.Long.MIN_VALUE)) { - return other.isOdd() ? goog.math.Long.MIN_VALUE : goog.math.Long.ZERO; - } else if (other.equals(goog.math.Long.MIN_VALUE)) { - return this.isOdd() ? goog.math.Long.MIN_VALUE : goog.math.Long.ZERO; - } + if (this.equals(goog.math.Long.MIN_VALUE)) { + return other.isOdd() ? goog.math.Long.MIN_VALUE : goog.math.Long.ZERO; + } else if (other.equals(goog.math.Long.MIN_VALUE)) { + return this.isOdd() ? goog.math.Long.MIN_VALUE : goog.math.Long.ZERO; + } - if (this.isNegative()) { - if (other.isNegative()) { - return this.negate().multiply(other.negate()); - } else { - return this.negate().multiply(other).negate(); + if (this.isNegative()) { + if (other.isNegative()) { + return this.negate().multiply(other.negate()); + } else { + return this.negate().multiply(other).negate(); + } + } else if (other.isNegative()) { + return this.multiply(other.negate()).negate(); } - } else if (other.isNegative()) { - return this.multiply(other.negate()).negate(); - } - // If both longs are small, use float multiplication - if (this.lessThan(goog.math.Long.TWO_PWR_24_) && - other.lessThan(goog.math.Long.TWO_PWR_24_)) { - return goog.math.Long.fromNumber(this.toNumber() * other.toNumber()); - } + // If both longs are small, use float multiplication + if (this.lessThan(goog.math.Long.TWO_PWR_24_) && + other.lessThan(goog.math.Long.TWO_PWR_24_)) { + return goog.math.Long.fromNumber(this.toNumber() * other.toNumber()); + } - // Divide each long into 4 chunks of 16 bits, and then add up 4x4 products. - // We can skip products that would overflow. - - var a48 = this.high_ >>> 16; - var a32 = this.high_ & 0xFFFF; - var a16 = this.low_ >>> 16; - var a00 = this.low_ & 0xFFFF; - - var b48 = other.high_ >>> 16; - var b32 = other.high_ & 0xFFFF; - var b16 = other.low_ >>> 16; - var b00 = other.low_ & 0xFFFF; - - var c48 = 0, c32 = 0, c16 = 0, c00 = 0; - c00 += a00 * b00; - c16 += c00 >>> 16; - c00 &= 0xFFFF; - c16 += a16 * b00; - c32 += c16 >>> 16; - c16 &= 0xFFFF; - c16 += a00 * b16; - c32 += c16 >>> 16; - c16 &= 0xFFFF; - c32 += a32 * b00; - c48 += c32 >>> 16; - c32 &= 0xFFFF; - c32 += a16 * b16; - c48 += c32 >>> 16; - c32 &= 0xFFFF; - c32 += a00 * b32; - c48 += c32 >>> 16; - c32 &= 0xFFFF; - c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48; - c48 &= 0xFFFF; - return goog.math.Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32); -}; + // Divide each long into 4 chunks of 16 bits, and then add up 4x4 products. + // We can skip products that would overflow. + + var a48 = this.high_ >>> 16; + var a32 = this.high_ & 0xFFFF; + var a16 = this.low_ >>> 16; + var a00 = this.low_ & 0xFFFF; + + var b48 = other.high_ >>> 16; + var b32 = other.high_ & 0xFFFF; + var b16 = other.low_ >>> 16; + var b00 = other.low_ & 0xFFFF; + + var c48 = 0, c32 = 0, c16 = 0, c00 = 0; + c00 += a00 * b00; + c16 += c00 >>> 16; + c00 &= 0xFFFF; + c16 += a16 * b00; + c32 += c16 >>> 16; + c16 &= 0xFFFF; + c16 += a00 * b16; + c32 += c16 >>> 16; + c16 &= 0xFFFF; + c32 += a32 * b00; + c48 += c32 >>> 16; + c32 &= 0xFFFF; + c32 += a16 * b16; + c48 += c32 >>> 16; + c32 &= 0xFFFF; + c32 += a00 * b32; + c48 += c32 >>> 16; + c32 &= 0xFFFF; + c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48; + c48 &= 0xFFFF; + return goog.math.Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32); + }; -/** - * Returns this Long divided by the given one. - * @param {goog.math.Long} other Long by which to divide. - * @return {!goog.math.Long} This Long divided by the given one. - */ -goog.math.Long.prototype.div = function(other) { - if (other.isZero()) { - throw Error('division by zero'); - } else if (this.isZero()) { - return goog.math.Long.ZERO; - } + /** + * Returns this Long divided by the given one. + * @param {goog.math.Long} other Long by which to divide. + * @return {!goog.math.Long} This Long divided by the given one. + */ + goog.math.Long.prototype.div = function(other) { + if (other.isZero()) { + throw Error('division by zero'); + } else if (this.isZero()) { + return goog.math.Long.ZERO; + } - if (this.equals(goog.math.Long.MIN_VALUE)) { - if (other.equals(goog.math.Long.ONE) || - other.equals(goog.math.Long.NEG_ONE)) { - return goog.math.Long.MIN_VALUE; // recall that -MIN_VALUE == MIN_VALUE - } else if (other.equals(goog.math.Long.MIN_VALUE)) { - return goog.math.Long.ONE; - } else { - // At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|. - var halfThis = this.shiftRight(1); - var approx = halfThis.div(other).shiftLeft(1); - if (approx.equals(goog.math.Long.ZERO)) { - return other.isNegative() ? goog.math.Long.ONE : goog.math.Long.NEG_ONE; + if (this.equals(goog.math.Long.MIN_VALUE)) { + if (other.equals(goog.math.Long.ONE) || + other.equals(goog.math.Long.NEG_ONE)) { + return goog.math.Long.MIN_VALUE; // recall that -MIN_VALUE == MIN_VALUE + } else if (other.equals(goog.math.Long.MIN_VALUE)) { + return goog.math.Long.ONE; } else { - var rem = this.subtract(other.multiply(approx)); - var result = approx.add(rem.div(other)); - return result; + // At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|. + var halfThis = this.shiftRight(1); + var approx = halfThis.div(other).shiftLeft(1); + if (approx.equals(goog.math.Long.ZERO)) { + return other.isNegative() ? goog.math.Long.ONE : goog.math.Long.NEG_ONE; + } else { + var rem = this.subtract(other.multiply(approx)); + var result = approx.add(rem.div(other)); + return result; + } } + } else if (other.equals(goog.math.Long.MIN_VALUE)) { + return goog.math.Long.ZERO; } - } else if (other.equals(goog.math.Long.MIN_VALUE)) { - return goog.math.Long.ZERO; - } - |