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sdk/pkg/dev_compiler/lib/runtime/dart/math.js
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dart_library.library('dart/math', null, /* Imports */[
'dart/_runtime',
'dart/core'
], /* Lazy imports */[
'dart/_js_helper'
], function(exports, dart, core, _js_helper) {
'use strict';
let dartx = dart.dartx;
class _JenkinsSmiHash extends core.Object {
static combine(hash, value) {
hash = 536870911 & dart.notNull(hash) + dart.notNull(value);
hash = 536870911 & dart.notNull(hash) + ((524287 & dart.notNull(hash)) << 10);
return dart.notNull(hash) ^ dart.notNull(hash) >> 6;
}
static finish(hash) {
hash = 536870911 & dart.notNull(hash) + ((67108863 & dart.notNull(hash)) << 3);
hash = dart.notNull(hash) ^ dart.notNull(hash) >> 11;
return 536870911 & dart.notNull(hash) + ((16383 & dart.notNull(hash)) << 15);
}
static hash2(a, b) {
return _JenkinsSmiHash.finish(_JenkinsSmiHash.combine(_JenkinsSmiHash.combine(0, dart.as(a, core.int)), dart.as(b, core.int)));
}
static hash4(a, b, c, d) {
return _JenkinsSmiHash.finish(_JenkinsSmiHash.combine(_JenkinsSmiHash.combine(_JenkinsSmiHash.combine(_JenkinsSmiHash.combine(0, dart.as(a, core.int)), dart.as(b, core.int)), dart.as(c, core.int)), dart.as(d, core.int)));
}
}
dart.setSignature(_JenkinsSmiHash, {
statics: () => ({
combine: [core.int, [core.int, core.int]],
finish: [core.int, [core.int]],
hash2: [core.int, [dart.dynamic, dart.dynamic]],
hash4: [core.int, [dart.dynamic, dart.dynamic, dart.dynamic, dart.dynamic]]
}),
names: ['combine', 'finish', 'hash2', 'hash4']
});
const Point$ = dart.generic(function(T) {
class Point extends core.Object {
Point(x, y) {
this.x = x;
this.y = y;
}
toString() {
return `Point(${this.x}, ${this.y})`;
}
['=='](other) {
if (!dart.is(other, Point$(core.num))) return false;
return dart.equals(this.x, dart.dload(other, 'x')) && dart.equals(this.y, dart.dload(other, 'y'));
}
get hashCode() {
return _JenkinsSmiHash.hash2(dart.hashCode(this.x), dart.hashCode(this.y));
}
['+'](other) {
dart.as(other, Point$(T));
return new (Point$(T))(dart.notNull(this.x) + dart.notNull(other.x), dart.notNull(this.y) + dart.notNull(other.y));
}
['-'](other) {
dart.as(other, Point$(T));
return new (Point$(T))(dart.notNull(this.x) - dart.notNull(other.x), dart.notNull(this.y) - dart.notNull(other.y));
}
['*'](factor) {
return new (Point$(T))(dart.notNull(this.x) * dart.notNull(factor), dart.notNull(this.y) * dart.notNull(factor));
}
get magnitude() {
return sqrt(dart.notNull(this.x) * dart.notNull(this.x) + dart.notNull(this.y) * dart.notNull(this.y));
}
distanceTo(other) {
dart.as(other, Point$(T));
let dx = dart.notNull(this.x) - dart.notNull(other.x);
let dy = dart.notNull(this.y) - dart.notNull(other.y);
return sqrt(dx * dx + dy * dy);
}
squaredDistanceTo(other) {
dart.as(other, Point$(T));
let dx = dart.notNull(this.x) - dart.notNull(other.x);
let dy = dart.notNull(this.y) - dart.notNull(other.y);
return dx * dx + dy * dy;
}
}
dart.setSignature(Point, {
constructors: () => ({Point: [Point$(T), [T, T]]}),
methods: () => ({
'+': [Point$(T), [Point$(T)]],
'-': [Point$(T), [Point$(T)]],
'*': [Point$(T), [core.num]],
distanceTo: [core.double, [Point$(T)]],
squaredDistanceTo: [T, [Point$(T)]]
})
});
return Point;
});
let Point = Point$();
class Random extends core.Object {
static new(seed) {
if (seed === void 0) seed = null;
return seed == null ? dart.const(new _JSRandom()) : new _Random(seed);
}
}
dart.setSignature(Random, {
constructors: () => ({new: [Random, [], [core.int]]})
});
const _RectangleBase$ = dart.generic(function(T) {
dart.defineExtensionNames([
'right',
'bottom',
'toString',
'==',
'hashCode',
'intersection',
'intersects',
'boundingBox',
'containsRectangle',
'containsPoint',
'topLeft',
'topRight',
'bottomRight',
'bottomLeft'
]);
class _RectangleBase extends core.Object {
_RectangleBase() {
}
get [dartx.right]() {
return dart.notNull(this[dartx.left]) + dart.notNull(this[dartx.width]);
}
get [dartx.bottom]() {
return dart.notNull(this[dartx.top]) + dart.notNull(this[dartx.height]);
}
toString() {
return `Rectangle (${this[dartx.left]}, ${this[dartx.top]}) ${this[dartx.width]} x ${this[dartx.height]}`;
}
['=='](other) {
if (!dart.is(other, Rectangle)) return false;
return dart.equals(this[dartx.left], dart.dload(other, 'left')) && dart.equals(this[dartx.top], dart.dload(other, 'top')) && dart.equals(this[dartx.right], dart.dload(other, 'right')) && dart.equals(this[dartx.bottom], dart.dload(other, 'bottom'));
}
get hashCode() {
return _JenkinsSmiHash.hash4(dart.hashCode(this[dartx.left]), dart.hashCode(this[dartx.top]), dart.hashCode(this[dartx.right]), dart.hashCode(this[dartx.bottom]));
}
[dartx.intersection](other) {
dart.as(other, Rectangle$(T));
let x0 = max(this[dartx.left], other[dartx.left]);
let x1 = min(dart.notNull(this[dartx.left]) + dart.notNull(this[dartx.width]), dart.notNull(other[dartx.left]) + dart.notNull(other[dartx.width]));
if (dart.notNull(x0) <= dart.notNull(x1)) {
let y0 = max(this[dartx.top], other[dartx.top]);
let y1 = min(dart.notNull(this[dartx.top]) + dart.notNull(this[dartx.height]), dart.notNull(other[dartx.top]) + dart.notNull(other[dartx.height]));
if (dart.notNull(y0) <= dart.notNull(y1)) {
return new (Rectangle$(T))(x0, y0, dart.notNull(x1) - dart.notNull(x0), dart.notNull(y1) - dart.notNull(y0));
}
}
return null;
}
[dartx.intersects](other) {
return dart.notNull(this[dartx.left]) <= dart.notNull(other[dartx.left]) + dart.notNull(other[dartx.width]) && dart.notNull(other[dartx.left]) <= dart.notNull(this[dartx.left]) + dart.notNull(this[dartx.width]) && dart.notNull(this[dartx.top]) <= dart.notNull(other[dartx.top]) + dart.notNull(other[dartx.height]) && dart.notNull(other[dartx.top]) <= dart.notNull(this[dartx.top]) + dart.notNull(this[dartx.height]);
}
[dartx.boundingBox](other) {
dart.as(other, Rectangle$(T));
let right = max(dart.notNull(this[dartx.left]) + dart.notNull(this[dartx.width]), dart.notNull(other[dartx.left]) + dart.notNull(other[dartx.width]));
let bottom = max(dart.notNull(this[dartx.top]) + dart.notNull(this[dartx.height]), dart.notNull(other[dartx.top]) + dart.notNull(other[dartx.height]));
let left = min(this[dartx.left], other[dartx.left]);
let top = min(this[dartx.top], other[dartx.top]);
return new (Rectangle$(T))(left, top, dart.notNull(right) - dart.notNull(left), dart.notNull(bottom) - dart.notNull(top));
}
[dartx.containsRectangle](another) {
return dart.notNull(this[dartx.left]) <= dart.notNull(another[dartx.left]) && dart.notNull(this[dartx.left]) + dart.notNull(this[dartx.width]) >= dart.notNull(another[dartx.left]) + dart.notNull(another[dartx.width]) && dart.notNull(this[dartx.top]) <= dart.notNull(another[dartx.top]) && dart.notNull(this[dartx.top]) + dart.notNull(this[dartx.height]) >= dart.notNull(another[dartx.top]) + dart.notNull(another[dartx.height]);
}
[dartx.containsPoint](another) {
return dart.notNull(another.x) >= dart.notNull(this[dartx.left]) && dart.notNull(another.x) <= dart.notNull(this[dartx.left]) + dart.notNull(this[dartx.width]) && dart.notNull(another.y) >= dart.notNull(this[dartx.top]) && dart.notNull(another.y) <= dart.notNull(this[dartx.top]) + dart.notNull(this[dartx.height]);
}
get [dartx.topLeft]() {
return new (Point$(T))(this[dartx.left], this[dartx.top]);
}
get [dartx.topRight]() {
return new (Point$(T))(dart.notNull(this[dartx.left]) + dart.notNull(this[dartx.width]), this[dartx.top]);
}
get [dartx.bottomRight]() {
return new (Point$(T))(dart.notNull(this[dartx.left]) + dart.notNull(this[dartx.width]), dart.notNull(this[dartx.top]) + dart.notNull(this[dartx.height]));
}
get [dartx.bottomLeft]() {
return new (Point$(T))(this[dartx.left], dart.notNull(this[dartx.top]) + dart.notNull(this[dartx.height]));
}
}
dart.setSignature(_RectangleBase, {
constructors: () => ({_RectangleBase: [_RectangleBase$(T), []]}),
methods: () => ({
[dartx.intersection]: [Rectangle$(T), [Rectangle$(T)]],
[dartx.intersects]: [core.bool, [Rectangle$(core.num)]],
[dartx.boundingBox]: [Rectangle$(T), [Rectangle$(T)]],
[dartx.containsRectangle]: [core.bool, [Rectangle$(core.num)]],
[dartx.containsPoint]: [core.bool, [Point$(core.num)]]
})
});
return _RectangleBase;
});
let _RectangleBase = _RectangleBase$();
const Rectangle$ = dart.generic(function(T) {
dart.defineExtensionNames([
'left',
'top',
'width',
'height'
]);
class Rectangle extends _RectangleBase$(T) {
get [dartx.left]() {
return this.left;
}
get [dartx.top]() {
return this.top;
}
get [dartx.width]() {
return this.width;
}
get [dartx.height]() {
return this.height;
}
Rectangle(left, top, width, height) {
this[dartx.left] = left;
this[dartx.top] = top;
this[dartx.width] = dart.notNull(width) < 0 ? -dart.notNull(width) * 0 : width;
this[dartx.height] = dart.notNull(height) < 0 ? -dart.notNull(height) * 0 : height;
super._RectangleBase();
}
static fromPoints(a, b) {
let left = min(a.x, b.x);
let width = dart.notNull(max(a.x, b.x)) - dart.notNull(left);
let top = min(a.y, b.y);
let height = dart.notNull(max(a.y, b.y)) - dart.notNull(top);
return new (Rectangle$(T))(left, top, width, height);
}
}
dart.virtualField(Rectangle, dartx.left);
dart.virtualField(Rectangle, dartx.top);
dart.virtualField(Rectangle, dartx.width);
dart.virtualField(Rectangle, dartx.height);
dart.setSignature(Rectangle, {
constructors: () => ({
Rectangle: [Rectangle$(T), [T, T, T, T]],
fromPoints: [Rectangle$(T), [Point$(T), Point$(T)]]
})
});
return Rectangle;
});
let Rectangle = Rectangle$();
const _width = Symbol('_width');
const _height = Symbol('_height');
const MutableRectangle$ = dart.generic(function(T) {
class MutableRectangle extends _RectangleBase$(T) {
MutableRectangle(left, top, width, height) {
this.left = left;
this.top = top;
this[_width] = dart.notNull(width) < 0 ? _clampToZero(width) : width;
this[_height] = dart.notNull(height) < 0 ? _clampToZero(height) : height;
super._RectangleBase();
}
static fromPoints(a, b) {
let left = min(a.x, b.x);
let width = dart.notNull(max(a.x, b.x)) - dart.notNull(left);
let top = min(a.y, b.y);
let height = dart.notNull(max(a.y, b.y)) - dart.notNull(top);
return new (MutableRectangle$(T))(left, top, width, height);
}
get width() {
return this[_width];
}
set width(width) {
dart.as(width, T);
if (dart.notNull(width) < 0) width = _clampToZero(width);
this[_width] = width;
}
get height() {
return this[_height];
}
set height(height) {
dart.as(height, T);
if (dart.notNull(height) < 0) height = _clampToZero(height);
this[_height] = height;
}
}
MutableRectangle[dart.implements] = () => [Rectangle$(T)];
dart.virtualField(MutableRectangle, 'left');
dart.virtualField(MutableRectangle, 'top');
dart.setSignature(MutableRectangle, {
constructors: () => ({
MutableRectangle: [MutableRectangle$(T), [T, T, T, T]],
fromPoints: [MutableRectangle$(T), [Point$(T), Point$(T)]]
})
});
dart.defineExtensionMembers(MutableRectangle, ['left', 'top', 'width', 'height']);
return MutableRectangle;
});
let MutableRectangle = MutableRectangle$();
function _clampToZero(value) {
dart.assert(dart.notNull(value) < 0);
return -dart.notNull(value) * 0;
}
dart.fn(_clampToZero, core.num, [core.num]);
const E = 2.718281828459045;
const LN10 = 2.302585092994046;
const LN2 = 0.6931471805599453;
const LOG2E = 1.4426950408889634;
const LOG10E = 0.4342944819032518;
const PI = 3.141592653589793;
const SQRT1_2 = 0.7071067811865476;
const SQRT2 = 1.4142135623730951;
function min(a, b) {
if (!(typeof a == 'number')) dart.throw(new core.ArgumentError(a));
if (!(typeof b == 'number')) dart.throw(new core.ArgumentError(b));
if (dart.notNull(a) > dart.notNull(b)) return b;
if (dart.notNull(a) < dart.notNull(b)) return a;
if (typeof b == 'number') {
if (typeof a == 'number') {
if (a == 0.0) {
return (dart.notNull(a) + dart.notNull(b)) * dart.notNull(a) * dart.notNull(b);
}
}
if (a == 0 && dart.notNull(b[dartx.isNegative]) || dart.notNull(b[dartx.isNaN])) return b;
return a;
}
return a;
}
dart.fn(min, () => dart.definiteFunctionType(dart.dynamic, [dart.dynamic, dart.dynamic]));
function max(a, b) {
if (!(typeof a == 'number')) dart.throw(new core.ArgumentError(a));
if (!(typeof b == 'number')) dart.throw(new core.ArgumentError(b));
if (dart.notNull(a) > dart.notNull(b)) return a;
if (dart.notNull(a) < dart.notNull(b)) return b;
if (typeof b == 'number') {
if (typeof a == 'number') {
if (a == 0.0) {
return dart.notNull(a) + dart.notNull(b);
}
}
if (dart.notNull(b[dartx.isNaN])) return b;
return a;
}
if (b == 0 && dart.notNull(a[dartx.isNegative])) return b;
return a;
}
dart.fn(max, () => dart.definiteFunctionType(dart.dynamic, [dart.dynamic, dart.dynamic]));
function atan2(a, b) {
return Math.atan2(_js_helper.checkNum(a), _js_helper.checkNum(b));
}
dart.fn(atan2, core.double, [core.num, core.num]);
function pow(x, exponent) {
_js_helper.checkNum(x);
_js_helper.checkNum(exponent);
return Math.pow(x, exponent);
}
dart.fn(pow, core.num, [core.num, core.num]);
function sin(x) {
return Math.sin(_js_helper.checkNum(x));
}
dart.fn(sin, core.double, [core.num]);
function cos(x) {
return Math.cos(_js_helper.checkNum(x));
}
dart.fn(cos, core.double, [core.num]);
function tan(x) {
return Math.tan(_js_helper.checkNum(x));
}
dart.fn(tan, core.double, [core.num]);
function acos(x) {
return Math.acos(_js_helper.checkNum(x));
}
dart.fn(acos, core.double, [core.num]);
function asin(x) {
return Math.asin(_js_helper.checkNum(x));
}
dart.fn(asin, core.double, [core.num]);
function atan(x) {
return Math.atan(_js_helper.checkNum(x));
}
dart.fn(atan, core.double, [core.num]);
function sqrt(x) {
return Math.sqrt(_js_helper.checkNum(x));
}
dart.fn(sqrt, core.double, [core.num]);
function exp(x) {
return Math.exp(_js_helper.checkNum(x));
}
dart.fn(exp, core.double, [core.num]);
function log(x) {
return Math.log(_js_helper.checkNum(x));
}
dart.fn(log, core.double, [core.num]);
const _POW2_32 = 4294967296;
class _JSRandom extends core.Object {
_JSRandom() {
}
nextInt(max) {
if (dart.notNull(max) <= 0 || dart.notNull(max) > dart.notNull(_POW2_32)) {
dart.throw(new core.RangeError(`max must be in range 0 < max ≤ 2^32, was ${max}`));
}
return Math.random() * max >>> 0;
}
nextDouble() {
return Math.random();
}
nextBool() {
return Math.random() < 0.5;
}
}
_JSRandom[dart.implements] = () => [Random];
dart.setSignature(_JSRandom, {
constructors: () => ({_JSRandom: [_JSRandom, []]}),
methods: () => ({
nextInt: [core.int, [core.int]],
nextDouble: [core.double, []],
nextBool: [core.bool, []]
})
});
const _lo = Symbol('_lo');
const _hi = Symbol('_hi');
const _nextState = Symbol('_nextState');
class _Random extends core.Object {
_Random(seed) {
this[_lo] = 0;
this[_hi] = 0;
let empty_seed = 0;
if (dart.notNull(seed) < 0) {
empty_seed = -1;
}
do {
let low = dart.notNull(seed) & dart.notNull(_Random._MASK32);
seed = ((dart.notNull(seed) - low) / dart.notNull(_POW2_32))[dartx.truncate]();
let high = dart.notNull(seed) & dart.notNull(_Random._MASK32);
seed = ((dart.notNull(seed) - high) / dart.notNull(_POW2_32))[dartx.truncate]();
let tmplow = low << 21;
let tmphigh = high << 21 | low >> 11;
tmplow = (~low & dart.notNull(_Random._MASK32)) + tmplow;
low = tmplow & dart.notNull(_Random._MASK32);
high = ~high + tmphigh + ((tmplow - low) / 4294967296)[dartx.truncate]() & dart.notNull(_Random._MASK32);
tmphigh = high >> 24;
tmplow = low >> 24 | high << 8;
low = low ^ tmplow;
high = high ^ tmphigh;
tmplow = low * 265;
low = tmplow & dart.notNull(_Random._MASK32);
high = high * 265 + ((tmplow - low) / 4294967296)[dartx.truncate]() & dart.notNull(_Random._MASK32);
tmphigh = high >> 14;
tmplow = low >> 14 | high << 18;
low = low ^ tmplow;
high = high ^ tmphigh;
tmplow = low * 21;
low = tmplow & dart.notNull(_Random._MASK32);
high = high * 21 + ((tmplow - low) / 4294967296)[dartx.truncate]() & dart.notNull(_Random._MASK32);
tmphigh = high >> 28;
tmplow = low >> 28 | high << 4;
low = low ^ tmplow;
high = high ^ tmphigh;
tmplow = low << 31;
tmphigh = high << 31 | low >> 1;
tmplow = tmplow + low;
low = tmplow & dart.notNull(_Random._MASK32);
high = high + tmphigh + ((tmplow - low) / 4294967296)[dartx.truncate]() & dart.notNull(_Random._MASK32);
tmplow = dart.notNull(this[_lo]) * 1037;
this[_lo] = tmplow & dart.notNull(_Random._MASK32);
this[_hi] = dart.notNull(this[_hi]) * 1037 + ((tmplow - dart.notNull(this[_lo])) / 4294967296)[dartx.truncate]() & dart.notNull(_Random._MASK32);
this[_lo] = dart.notNull(this[_lo]) ^ low;
this[_hi] = dart.notNull(this[_hi]) ^ high;
} while (seed != empty_seed);
if (this[_hi] == 0 && this[_lo] == 0) {
this[_lo] = 23063;
}
this[_nextState]();
this[_nextState]();
this[_nextState]();
this[_nextState]();
}
[_nextState]() {
let tmpHi = 4294901760 * dart.notNull(this[_lo]);
let tmpHiLo = tmpHi & dart.notNull(_Random._MASK32);
let tmpHiHi = tmpHi - tmpHiLo;
let tmpLo = 55905 * dart.notNull(this[_lo]);
let tmpLoLo = tmpLo & dart.notNull(_Random._MASK32);
let tmpLoHi = tmpLo - tmpLoLo;
let newLo = tmpLoLo + tmpHiLo + dart.notNull(this[_hi]);
this[_lo] = newLo & dart.notNull(_Random._MASK32);
let newLoHi = newLo - dart.notNull(this[_lo]);
this[_hi] = ((tmpLoHi + tmpHiHi + newLoHi) / dart.notNull(_POW2_32))[dartx.truncate]() & dart.notNull(_Random._MASK32);
dart.assert(dart.notNull(this[_lo]) < dart.notNull(_POW2_32));
dart.assert(dart.notNull(this[_hi]) < dart.notNull(_POW2_32));
}
nextInt(max) {
if (dart.notNull(max) <= 0 || dart.notNull(max) > dart.notNull(_POW2_32)) {
dart.throw(new core.RangeError(`max must be in range 0 < max ≤ 2^32, was ${max}`));
}
if ((dart.notNull(max) & dart.notNull(max) - 1) == 0) {
this[_nextState]();
return dart.notNull(this[_lo]) & dart.notNull(max) - 1;
}
let rnd32 = null;
let result = null;
do {
this[_nextState]();
rnd32 = this[_lo];
result = dart.asInt(rnd32[dartx.remainder](max));
} while (dart.notNull(rnd32) - dart.notNull(result) + dart.notNull(max) >= dart.notNull(_POW2_32));
return result;
}
nextDouble() {
this[_nextState]();
let bits26 = dart.notNull(this[_lo]) & (1 << 26) - 1;
this[_nextState]();
let bits27 = dart.notNull(this[_lo]) & (1 << 27) - 1;
return (bits26 * dart.notNull(_Random._POW2_27_D) + bits27) / dart.notNull(_Random._POW2_53_D);
}
nextBool() {
this[_nextState]();
return (dart.notNull(this[_lo]) & 1) == 0;
}
}
_Random[dart.implements] = () => [Random];
dart.setSignature(_Random, {
constructors: () => ({_Random: [_Random, [core.int]]}),
methods: () => ({
[_nextState]: [dart.void, []],
nextInt: [core.int, [core.int]],
nextDouble: [core.double, []],
nextBool: [core.bool, []]
})
});
_Random._POW2_53_D = 1.0 * 9007199254740992;
_Random._POW2_27_D = 1.0 * (1 << 27);
_Random._MASK32 = 4294967295;
// Exports:
exports.Point$ = Point$;
exports.Point = Point;
exports.Random = Random;
exports.Rectangle$ = Rectangle$;
exports.Rectangle = Rectangle;
exports.MutableRectangle$ = MutableRectangle$;
exports.MutableRectangle = MutableRectangle;
exports.E = E;
exports.LN10 = LN10;
exports.LN2 = LN2;
exports.LOG2E = LOG2E;
exports.LOG10E = LOG10E;
exports.PI = PI;
exports.SQRT1_2 = SQRT1_2;
exports.SQRT2 = SQRT2;
exports.min = min;
exports.max = max;
exports.atan2 = atan2;
exports.pow = pow;
exports.sin = sin;
exports.cos = cos;
exports.tan = tan;
exports.acos = acos;
exports.asin = asin;
exports.atan = atan;
exports.sqrt = sqrt;
exports.exp = exp;
exports.log = log;
});
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