mapbox-gl
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A WebGL interactive maps library
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{"version":3,"file":"index.cjs","sources":["../../../node_modules/json-stringify-pretty-compact/index.js","../format.js","../visit.js","../migrate/v8.js","../util/extend.js","../expression/parsing_error.js","../expression/scope.js","../expression/types.js","../../../node_modules/csscolorparser/csscolorparser.js","../util/color.js","../expression/types/collator.js","../expression/types/formatted.js","../expression/types/resolved_image.js","../expression/values.js","../expression/definitions/literal.js","../expression/runtime_error.js","../expression/definitions/assertion.js","../expression/definitions/format.js","../expression/definitions/image.js","../util/get_type.js","../expression/definitions/coercion.js","../expression/evaluation_context.js","../expression/compound_expression.js","../expression/definitions/collator.js","../../../node_modules/quickselect/index.js","../util/geometry_util.js","../expression/definitions/within.js","../../../node_modules/cheap-ruler/index.js","../../../node_modules/@mapbox/point-geometry/index.js","../../../node_modules/tinyqueue/index.js","../data/extent.js","../expression/definitions/distance.js","../expression/is_constant.js","../expression/definitions/var.js","../expression/parsing_context.js","../expression/stops.js","../expression/definitions/step.js","../../../node_modules/@mapbox/unitbezier/index.js","../util/interpolate.js","../util/color_spaces.js","../expression/definitions/interpolate.js","../expression/definitions/coalesce.js","../expression/definitions/let.js","../expression/definitions/at.js","../expression/definitions/in.js","../expression/definitions/index_of.js","../expression/definitions/match.js","../expression/definitions/case.js","../expression/definitions/slice.js","../expression/definitions/comparison.js","../expression/definitions/number_format.js","../expression/definitions/length.js","../util/random.js","../expression/definitions/index.js","../util/result.js","../util/properties.js","../function/index.js","../expression/index.js","../function/convert.js","../util/unbundle_jsonlint.js","../feature_filter/index.js","../feature_filter/convert.js","../migrate/expressions.js","../migrate.js","../composite.js","../util/ref_properties.js","../deref.js","../util/deep_equal.js","../diff.js","../error/validation_error.js","../error/parsing_error.js","../validate/validate_object.js","../validate/validate_import.js","../validate/validate_array.js","../validate/validate_number.js","../validate/validate_function.js","../validate/validate_expression.js","../validate/validate_boolean.js","../validate/validate_color.js","../validate/validate_enum.js","../validate/validate_filter.js","../validate/validate_property.js","../validate/validate_paint_property.js","../validate/validate_layout_property.js","../validate/validate_layer.js","../validate/validate_string.js","../validate/validate_source.js","../validate/validate_model.js","../validate/validate_light.js","../validate/validate_lights.js","../validate/validate_terrain.js","../validate/validate_fog.js","../validate/validate_formatted.js","../validate/validate_image.js","../validate/validate_projection.js","../validate/validate.js","../validate/validate_glyphs_url.js","../validate/validate_style.js","../validate_style.min.js","../../../node_modules/@mapbox/jsonlint-lines-primitives/lib/jsonlint.js","../read_style.js","../validate_style.js","../validate_mapbox_api_supported.js","../style-spec.js"],"sourcesContent":["// Note: This regex matches even invalid JSON strings, but since we’re\n// working on the output of `JSON.stringify` we know that only valid strings\n// are present (unless the user supplied a weird `options.indent` but in\n// that case we don’t care since the output would be invalid anyway).\nconst stringOrChar = /(\"(?:[^\\\\\"]|\\\\.)*\")|[:,]/g;\n\nexport default function stringify(passedObj, options = {}) {\n const indent = JSON.stringify(\n [1],\n undefined,\n options.indent === undefined ? 2 : options.indent\n ).slice(2, -3);\n\n const maxLength =\n indent === \"\"\n ? Infinity\n : options.maxLength === undefined\n ? 80\n : options.maxLength;\n\n let { replacer } = options;\n\n return (function _stringify(obj, currentIndent, reserved) {\n if (obj && typeof obj.toJSON === \"function\") {\n obj = obj.toJSON();\n }\n\n const string = JSON.stringify(obj, replacer);\n\n if (string === undefined) {\n return string;\n }\n\n const length = maxLength - currentIndent.length - reserved;\n\n if (string.length <= length) {\n const prettified = string.replace(\n stringOrChar,\n (match, stringLiteral) => {\n return stringLiteral || `${match} `;\n }\n );\n if (prettified.length <= length) {\n return prettified;\n }\n }\n\n if (replacer != null) {\n obj = JSON.parse(string);\n replacer = undefined;\n }\n\n if (typeof obj === \"object\" && obj !== null) {\n const nextIndent = currentIndent + indent;\n const items = [];\n let index = 0;\n let start;\n let end;\n\n if (Array.isArray(obj)) {\n start = \"[\";\n end = \"]\";\n const { length } = obj;\n for (; index < length; index++) {\n items.push(\n _stringify(obj[index], nextIndent, index === length - 1 ? 0 : 1) ||\n \"null\"\n );\n }\n } else {\n start = \"{\";\n end = \"}\";\n const keys = Object.keys(obj);\n const { length } = keys;\n for (; index < length; index++) {\n const key = keys[index];\n const keyPart = `${JSON.stringify(key)}: `;\n const value = _stringify(\n obj[key],\n nextIndent,\n keyPart.length + (index === length - 1 ? 0 : 1)\n );\n if (value !== undefined) {\n items.push(keyPart + value);\n }\n }\n }\n\n if (items.length > 0) {\n return [start, indent + items.join(`,\\n${nextIndent}`), end].join(\n `\\n${currentIndent}`\n );\n }\n }\n\n return string;\n })(passedObj, \"\", 0);\n}\n","// @noflow\n\nimport reference from './reference/latest.js';\nimport stringifyPretty from 'json-stringify-pretty-compact';\n\nfunction sortKeysBy(obj, reference) {\n const result = {};\n for (const key in reference) {\n if (obj[key] !== undefined) {\n result[key] = obj[key];\n }\n }\n for (const key in obj) {\n if (result[key] === undefined) {\n result[key] = obj[key];\n }\n }\n return result;\n}\n\n/**\n * Format a Mapbox GL Style. Returns a stringified style with its keys\n * sorted in the same order as the reference style.\n *\n * The optional `space` argument is passed to\n * [`JSON.stringify`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify)\n * to generate formatted output.\n *\n * If `space` is unspecified, a default of `2` spaces will be used.\n *\n * @private\n * @param {Object} style a Mapbox GL Style\n * @param {number} [space] space argument to pass to `JSON.stringify`\n * @returns {string} stringified formatted JSON\n * @example\n * var fs = require('fs');\n * var format = require('mapbox-gl-style-spec').format;\n * var style = fs.readFileSync('./source.json', 'utf8');\n * fs.writeFileSync('./dest.json', format(style));\n * fs.writeFileSync('./dest.min.json', format(style, 0));\n */\nfunction format(style, space = 2) {\n style = sortKeysBy(style, reference.$root);\n\n if (style.layers) {\n style.layers = style.layers.map((layer) => sortKeysBy(layer, reference.layer));\n }\n\n return stringifyPretty(style, {indent: space});\n}\n\nexport default format;\n","// @flow\n\nimport Reference from './reference/v8.json';\nimport type {StylePropertySpecification} from './style-spec.js';\nimport type {\n StyleSpecification,\n SourceSpecification,\n LayerSpecification,\n PropertyValueSpecification,\n DataDrivenPropertyValueSpecification\n} from './types.js';\n\nfunction getPropertyReference(propertyName: string): StylePropertySpecification {\n for (let i = 0; i < Reference.layout.length; i++) {\n for (const key in Reference[Reference.layout[i]]) {\n if (key === propertyName) return (Reference[Reference.layout[i]][key]: any);\n }\n }\n for (let i = 0; i < Reference.paint.length; i++) {\n for (const key in Reference[Reference.paint[i]]) {\n if (key === propertyName) return (Reference[Reference.paint[i]][key]: any);\n }\n }\n\n return (null: any);\n}\n\nexport function eachSource(style: StyleSpecification, callback: (_: SourceSpecification) => void) {\n for (const k in style.sources) {\n callback(style.sources[k]);\n }\n}\n\nexport function eachLayer(style: StyleSpecification, callback: (_: LayerSpecification) => void) {\n for (const layer of style.layers) {\n callback(layer);\n }\n}\n\ntype PropertyCallback = ({\n path: [string, 'paint' | 'layout', string], // [layerid, paint/layout, property key]\n key: string,\n value: PropertyValueSpecification<mixed> | DataDrivenPropertyValueSpecification<mixed>,\n reference: StylePropertySpecification,\n set: (PropertyValueSpecification<mixed> | DataDrivenPropertyValueSpecification<mixed>) => void\n}) => void;\n\nexport function eachProperty(\n style: StyleSpecification,\n options: {paint?: boolean, layout?: boolean},\n callback: PropertyCallback\n) {\n function inner(layer: LayerSpecification, propertyType: 'paint' | 'layout') {\n if (layer.type === 'slot') return;\n const properties = (layer[propertyType]: any);\n if (!properties) return;\n Object.keys(properties).forEach((key) => {\n callback({\n path: [layer.id, propertyType, key],\n key,\n value: properties[key],\n reference: getPropertyReference(key),\n set(x) {\n properties[key] = x;\n }\n });\n });\n }\n\n eachLayer(style, (layer) => {\n if (options.paint) {\n inner(layer, 'paint');\n }\n if (options.layout) {\n inner(layer, 'layout');\n }\n });\n}\n","// @noflow\nimport {eachSource, eachLayer, eachProperty} from '../visit.js';\n\nfunction eachLayout(layer, callback) {\n for (const k in layer) {\n if (k.indexOf('layout') === 0) {\n callback(layer[k], k);\n }\n }\n}\n\nfunction eachPaint(layer, callback) {\n for (const k in layer) {\n if (k.indexOf('paint') === 0) {\n callback(layer[k], k);\n }\n }\n}\n\nfunction resolveConstant(style, value) {\n if (typeof value === 'string' && value[0] === '@') {\n return resolveConstant(style, style.constants[value]);\n } else {\n return value;\n }\n}\n\nfunction isFunction(value) {\n return Array.isArray(value.stops);\n}\n\nfunction renameProperty(obj, from, to) {\n obj[to] = obj[from]; delete obj[from];\n}\n\nexport default function(style) {\n style.version = 8;\n\n // Rename properties, reverse coordinates in source and layers\n eachSource(style, (source) => {\n if (source.type === 'video' && source.url !== undefined) {\n renameProperty(source, 'url', 'urls');\n }\n if (source.type === 'video') {\n source.coordinates.forEach((coord) => {\n return coord.reverse();\n });\n }\n });\n\n eachLayer(style, (layer) => {\n eachLayout(layer, (layout) => {\n if (layout['symbol-min-distance'] !== undefined) {\n renameProperty(layout, 'symbol-min-distance', 'symbol-spacing');\n }\n });\n\n eachPaint(layer, (paint) => {\n if (paint['background-image'] !== undefined) {\n renameProperty(paint, 'background-image', 'background-pattern');\n }\n if (paint['line-image'] !== undefined) {\n renameProperty(paint, 'line-image', 'line-pattern');\n }\n if (paint['fill-image'] !== undefined) {\n renameProperty(paint, 'fill-image', 'fill-pattern');\n }\n });\n });\n\n // Inline Constants\n eachProperty(style, {paint: true, layout: true}, (property) => {\n const value = resolveConstant(style, property.value);\n\n if (isFunction(value)) {\n value.stops.forEach((stop) => {\n stop[1] = resolveConstant(style, stop[1]);\n });\n }\n\n property.set(value);\n });\n delete style.constants;\n\n eachLayer(style, (layer) => {\n // get rid of text-max-size, icon-max-size\n // turn text-size, icon-size into layout properties\n // https://github.com/mapbox/mapbox-gl-style-spec/issues/255\n\n eachLayout(layer, (layout) => {\n delete layout['text-max-size'];\n delete layout['icon-max-size'];\n });\n\n eachPaint(layer, (paint) => {\n if (paint['text-size']) {\n if (!layer.layout) layer.layout = {};\n layer.layout['text-size'] = paint['text-size'];\n delete paint['text-size'];\n }\n\n if (paint['icon-size']) {\n if (!layer.layout) layer.layout = {};\n layer.layout['icon-size'] = paint['icon-size'];\n delete paint['icon-size'];\n }\n });\n });\n\n function migrateFontstackURL(input) {\n const inputParsed = new URL(input);\n const inputPathnameParts = inputParsed.pathname.split('/');\n\n if (inputParsed.protocol !== 'mapbox:') {\n return input;\n\n } else if (inputParsed.hostname === 'fontstack') {\n assert(decodeURI(inputParsed.pathname) === '/{fontstack}/{range}.pbf');\n return 'mapbox://fonts/mapbox/{fontstack}/{range}.pbf';\n\n } else if (inputParsed.hostname === 'fonts') {\n assert(inputPathnameParts[1] === 'v1');\n assert(decodeURI(inputPathnameParts[3]) === '{fontstack}');\n assert(decodeURI(inputPathnameParts[4]) === '{range}.pbf');\n return `mapbox://fonts/${inputPathnameParts[2]}/{fontstack}/{range}.pbf`;\n\n } else {\n assert(false);\n }\n\n function assert(predicate) {\n if (!predicate) {\n throw new Error(`Invalid font url: \"${input}\"`);\n }\n }\n }\n\n if (style.glyphs) {\n style.glyphs = migrateFontstackURL(style.glyphs);\n }\n\n function migrateFontStack(font) {\n function splitAndTrim(string) {\n return string.split(',').map((s) => {\n return s.trim();\n });\n }\n\n if (Array.isArray(font)) {\n // Assume it's a previously migrated font-array.\n return font;\n\n } else if (typeof font === 'string') {\n return splitAndTrim(font);\n\n } else if (typeof font === 'object') {\n font.stops.forEach((stop) => {\n stop[1] = splitAndTrim(stop[1]);\n });\n return font;\n\n } else {\n throw new Error(\"unexpected font value\");\n }\n }\n\n eachLayer(style, (layer) => {\n eachLayout(layer, (layout) => {\n if (layout['text-font']) {\n layout['text-font'] = migrateFontStack(layout['text-font']);\n }\n });\n });\n\n // Reverse order of symbol layers. This is an imperfect migration.\n //\n // The order of a symbol layer in the layers list affects two things:\n // - how it is drawn relative to other layers (like oneway arrows below bridges)\n // - the placement priority compared to other layers\n //\n // It's impossible to reverse the placement priority without breaking the draw order\n // in some cases. This migration only reverses the order of symbol layers that\n // are above all other types of layers.\n //\n // Symbol layers that are at the top of the map preserve their priority.\n // Symbol layers that are below another type (line, fill) of layer preserve their draw order.\n\n let firstSymbolLayer = 0;\n for (let i = style.layers.length - 1; i >= 0; i--) {\n const layer = style.layers[i];\n if (layer.type !== 'symbol') {\n firstSymbolLayer = i + 1;\n break;\n }\n }\n\n const symbolLayers = style.layers.splice(firstSymbolLayer);\n symbolLayers.reverse();\n style.layers = style.layers.concat(symbolLayers);\n\n return style;\n}\n","// @flow\n\nexport default function (output: any, ...inputs: Array<any>): any {\n for (const input of inputs) {\n for (const k in input) {\n output[k] = input[k];\n }\n }\n return output;\n}\n","// @flow\n\nclass ParsingError extends Error {\n key: string;\n message: string;\n constructor(key: string, message: string) {\n super(message);\n this.message = message;\n this.key = key;\n }\n}\n\nexport default ParsingError;\n","// @flow\n\nimport type {Expression} from './expression.js';\n\n/**\n * Tracks `let` bindings during expression parsing.\n * @private\n */\nclass Scope {\n parent: ?Scope;\n bindings: {[_: string]: Expression};\n constructor(parent?: Scope, bindings: Array<[string, Expression]> = []) {\n this.parent = parent;\n this.bindings = {};\n for (const [name, expression] of bindings) {\n this.bindings[name] = expression;\n }\n }\n\n concat(bindings: Array<[string, Expression]>): Scope {\n return new Scope(this, bindings);\n }\n\n get(name: string): Expression {\n if (this.bindings[name]) { return this.bindings[name]; }\n if (this.parent) { return this.parent.get(name); }\n throw new Error(`${name} not found in scope.`);\n }\n\n has(name: string): boolean {\n if (this.bindings[name]) return true;\n return this.parent ? this.parent.has(name) : false;\n }\n}\n\nexport default Scope;\n","// @flow\n\nexport type NullTypeT = { kind: 'null' };\nexport type NumberTypeT = { kind: 'number' };\nexport type StringTypeT = { kind: 'string' };\nexport type BooleanTypeT = { kind: 'boolean' };\nexport type ColorTypeT = { kind: 'color' };\nexport type ObjectTypeT = { kind: 'object' };\nexport type ValueTypeT = { kind: 'value' };\nexport type ErrorTypeT = { kind: 'error' };\nexport type CollatorTypeT = { kind: 'collator' };\nexport type FormattedTypeT = { kind: 'formatted' };\nexport type ResolvedImageTypeT = { kind: 'resolvedImage' };\n\nexport type EvaluationKind = 'constant' | 'source' | 'camera' | 'composite';\n\nexport type Type =\n NullTypeT |\n NumberTypeT |\n StringTypeT |\n BooleanTypeT |\n ColorTypeT |\n ObjectTypeT |\n ValueTypeT |\n ArrayType | // eslint-disable-line no-use-before-define\n ErrorTypeT |\n CollatorTypeT |\n FormattedTypeT |\n ResolvedImageTypeT |\n ArrayType;\n\nexport type ArrayType = {\n kind: 'array',\n itemType: Type,\n N: ?number\n}\n\nexport type NativeType = 'number' | 'string' | 'boolean' | 'null' | 'array' | 'object'\n\nexport const NullType = {kind: 'null'};\nexport const NumberType = {kind: 'number'};\nexport const StringType = {kind: 'string'};\nexport const BooleanType = {kind: 'boolean'};\nexport const ColorType = {kind: 'color'};\nexport const ObjectType = {kind: 'object'};\nexport const ValueType = {kind: 'value'};\nexport const ErrorType = {kind: 'error'};\nexport const CollatorType = {kind: 'collator'};\nexport const FormattedType = {kind: 'formatted'};\nexport const ResolvedImageType = {kind: 'resolvedImage'};\n\nexport function array(itemType: Type, N: ?number): ArrayType {\n return {\n kind: 'array',\n itemType,\n N\n };\n}\n\nexport function toString(type: Type): string {\n if (type.kind === 'array') {\n const itemType = toString(type.itemType);\n return typeof type.N === 'number' ?\n `array<${itemType}, ${type.N}>` :\n type.itemType.kind === 'value' ? 'array' : `array<${itemType}>`;\n } else {\n return type.kind;\n }\n}\n\nconst valueMemberTypes = [\n NullType,\n NumberType,\n StringType,\n BooleanType,\n ColorType,\n FormattedType,\n ObjectType,\n array(ValueType),\n ResolvedImageType\n];\n\n/**\n * Returns null if `t` is a subtype of `expected`; otherwise returns an\n * error message.\n * @private\n */\nexport function checkSubtype(expected: Type, t: Type): ?string {\n if (t.kind === 'error') {\n // Error is a subtype of every type\n return null;\n } else if (expected.kind === 'array') {\n if (t.kind === 'array' &&\n ((t.N === 0 && t.itemType.kind === 'value') || !checkSubtype(expected.itemType, t.itemType)) &&\n (typeof expected.N !== 'number' || expected.N === t.N)) {\n return null;\n }\n } else if (expected.kind === t.kind) {\n return null;\n } else if (expected.kind === 'value') {\n for (const memberType of valueMemberTypes) {\n if (!checkSubtype(memberType, t)) {\n return null;\n }\n }\n }\n\n return `Expected ${toString(expected)} but found ${toString(t)} instead.`;\n}\n\nexport function isValidType(provided: Type, allowedTypes: Array<Type>): boolean {\n return allowedTypes.some(t => t.kind === provided.kind);\n}\n\nexport function isValidNativeType(provided: any, allowedTypes: Array<NativeType>): boolean {\n return allowedTypes.some(t => {\n if (t === 'null') {\n return provided === null;\n } else if (t === 'array') {\n return Array.isArray(provided);\n } else if (t === 'object') {\n return provided && !Array.isArray(provided) && typeof provided === 'object';\n } else {\n return t === typeof provided;\n }\n });\n}\n","// (c) Dean McNamee <dean@gmail.com>, 2012.\n//\n// https://github.com/deanm/css-color-parser-js\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to\n// deal in the Software without restriction, including without limitation the\n// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n// sell copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n// IN THE SOFTWARE.\n\n// http://www.w3.org/TR/css3-color/\nvar kCSSColorTable = {\n \"transparent\": [0,0,0,0], \"aliceblue\": [240,248,255,1],\n \"antiquewhite\": [250,235,215,1], \"aqua\": [0,255,255,1],\n \"aquamarine\": [127,255,212,1], \"azure\": [240,255,255,1],\n \"beige\": [245,245,220,1], \"bisque\": [255,228,196,1],\n \"black\": [0,0,0,1], \"blanchedalmond\": [255,235,205,1],\n \"blue\": [0,0,255,1], \"blueviolet\": [138,43,226,1],\n \"brown\": [165,42,42,1], \"burlywood\": [222,184,135,1],\n \"cadetblue\": [95,158,160,1], \"chartreuse\": [127,255,0,1],\n \"chocolate\": [210,105,30,1], \"coral\": [255,127,80,1],\n \"cornflowerblue\": [100,149,237,1], \"cornsilk\": [255,248,220,1],\n \"crimson\": [220,20,60,1], \"cyan\": [0,255,255,1],\n \"darkblue\": [0,0,139,1], \"darkcyan\": [0,139,139,1],\n \"darkgoldenrod\": [184,134,11,1], \"darkgray\": [169,169,169,1],\n \"darkgreen\": [0,100,0,1], \"darkgrey\": [169,169,169,1],\n \"darkkhaki\": [189,183,107,1], \"darkmagenta\": [139,0,139,1],\n \"darkolivegreen\": [85,107,47,1], \"darkorange\": [255,140,0,1],\n \"darkorchid\": [153,50,204,1], \"darkred\": [139,0,0,1],\n \"darksalmon\": [233,150,122,1], \"darkseagreen\": [143,188,143,1],\n \"darkslateblue\": [72,61,139,1], \"darkslategray\": [47,79,79,1],\n \"darkslategrey\": [47,79,79,1], \"darkturquoise\": [0,206,209,1],\n \"darkviolet\": [148,0,211,1], \"deeppink\": [255,20,147,1],\n \"deepskyblue\": [0,191,255,1], \"dimgray\": [105,105,105,1],\n \"dimgrey\": [105,105,105,1], \"dodgerblue\": [30,144,255,1],\n \"firebrick\": [178,34,34,1], \"floralwhite\": [255,250,240,1],\n \"forestgreen\": [34,139,34,1], \"fuchsia\": [255,0,255,1],\n \"gainsboro\": [220,220,220,1], \"ghostwhite\": [248,248,255,1],\n \"gold\": [255,215,0,1], \"goldenrod\": [218,165,32,1],\n \"gray\": [128,128,128,1], \"green\": [0,128,0,1],\n \"greenyellow\": [173,255,47,1], \"grey\": [128,128,128,1],\n \"honeydew\": [240,255,240,1], \"hotpink\": [255,105,180,1],\n \"indianred\": [205,92,92,1], \"indigo\": [75,0,130,1],\n \"ivory\": [255,255,240,1], \"khaki\": [240,230,140,1],\n \"lavender\": [230,230,250,1], \"lavenderblush\": [255,240,245,1],\n \"lawngreen\": [124,252,0,1], \"lemonchiffon\": [255,250,205,1],\n \"lightblue\": [173,216,230,1], \"lightcoral\": [240,128,128,1],\n \"lightcyan\": [224,255,255,1], \"lightgoldenrodyellow\": [250,250,210,1],\n \"lightgray\": [211,211,211,1], \"lightgreen\": [144,238,144,1],\n \"lightgrey\": [211,211,211,1], \"lightpink\": [255,182,193,1],\n \"lightsalmon\": [255,160,122,1], \"lightseagreen\": [32,178,170,1],\n \"lightskyblue\": [135,206,250,1], \"lightslategray\": [119,136,153,1],\n \"lightslategrey\": [119,136,153,1], \"lightsteelblue\": [176,196,222,1],\n \"lightyellow\": [255,255,224,1], \"lime\": [0,255,0,1],\n \"limegreen\": [50,205,50,1], \"linen\": [250,240,230,1],\n \"magenta\": [255,0,255,1], \"maroon\": [128,0,0,1],\n \"mediumaquamarine\": [102,205,170,1], \"mediumblue\": [0,0,205,1],\n \"mediumorchid\": [186,85,211,1], \"mediumpurple\": [147,112,219,1],\n \"mediumseagreen\": [60,179,113,1], \"mediumslateblue\": [123,104,238,1],\n \"mediumspringgreen\": [0,250,154,1], \"mediumturquoise\": [72,209,204,1],\n \"mediumvioletred\": [199,21,133,1], \"midnightblue\": [25,25,112,1],\n \"mintcream\": [245,255,250,1], \"mistyrose\": [255,228,225,1],\n \"moccasin\": [255,228,181,1], \"navajowhite\": [255,222,173,1],\n \"navy\": [0,0,128,1], \"oldlace\": [253,245,230,1],\n \"olive\": [128,128,0,1], \"olivedrab\": [107,142,35,1],\n \"orange\": [255,165,0,1], \"orangered\": [255,69,0,1],\n \"orchid\": [218,112,214,1], \"palegoldenrod\": [238,232,170,1],\n \"palegreen\": [152,251,152,1], \"paleturquoise\": [175,238,238,1],\n \"palevioletred\": [219,112,147,1], \"papayawhip\": [255,239,213,1],\n \"peachpuff\": [255,218,185,1], \"peru\": [205,133,63,1],\n \"pink\": [255,192,203,1], \"plum\": [221,160,221,1],\n \"powderblue\": [176,224,230,1], \"purple\": [128,0,128,1],\n \"rebeccapurple\": [102,51,153,1],\n \"red\": [255,0,0,1], \"rosybrown\": [188,143,143,1],\n \"royalblue\": [65,105,225,1], \"saddlebrown\": [139,69,19,1],\n \"salmon\": [250,128,114,1], \"sandybrown\": [244,164,96,1],\n \"seagreen\": [46,139,87,1], \"seashell\": [255,245,238,1],\n \"sienna\": [160,82,45,1], \"silver\": [192,192,192,1],\n \"skyblue\": [135,206,235,1], \"slateblue\": [106,90,205,1],\n \"slategray\": [112,128,144,1], \"slategrey\": [112,128,144,1],\n \"snow\": [255,250,250,1], \"springgreen\": [0,255,127,1],\n \"steelblue\": [70,130,180,1], \"tan\": [210,180,140,1],\n \"teal\": [0,128,128,1], \"thistle\": [216,191,216,1],\n \"tomato\": [255,99,71,1], \"turquoise\": [64,224,208,1],\n \"violet\": [238,130,238,1], \"wheat\": [245,222,179,1],\n \"white\": [255,255,255,1], \"whitesmoke\": [245,245,245,1],\n \"yellow\": [255,255,0,1], \"yellowgreen\": [154,205,50,1]}\n\nfunction clamp_css_byte(i) { // Clamp to integer 0 .. 255.\n i = Math.round(i); // Seems to be what Chrome does (vs truncation).\n return i < 0 ? 0 : i > 255 ? 255 : i;\n}\n\nfunction clamp_css_float(f) { // Clamp to float 0.0 .. 1.0.\n return f < 0 ? 0 : f > 1 ? 1 : f;\n}\n\nfunction parse_css_int(str) { // int or percentage.\n if (str[str.length - 1] === '%')\n return clamp_css_byte(parseFloat(str) / 100 * 255);\n return clamp_css_byte(parseInt(str));\n}\n\nfunction parse_css_float(str) { // float or percentage.\n if (str[str.length - 1] === '%')\n return clamp_css_float(parseFloat(str) / 100);\n return clamp_css_float(parseFloat(str));\n}\n\nfunction css_hue_to_rgb(m1, m2, h) {\n if (h < 0) h += 1;\n else if (h > 1) h -= 1;\n\n if (h * 6 < 1) return m1 + (m2 - m1) * h * 6;\n if (h * 2 < 1) return m2;\n if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;\n return m1;\n}\n\nfunction parseCSSColor(css_str) {\n // Remove all whitespace, not compliant, but should just be more accepting.\n var str = css_str.replace(/ /g, '').toLowerCase();\n\n // Color keywords (and transparent) lookup.\n if (str in kCSSColorTable) return kCSSColorTable[str].slice(); // dup.\n\n // #abc and #abc123 syntax.\n if (str[0] === '#') {\n if (str.length === 4) {\n var iv = parseInt(str.substr(1), 16); // TODO(deanm): Stricter parsing.\n if (!(iv >= 0 && iv <= 0xfff)) return null; // Covers NaN.\n return [((iv & 0xf00) >> 4) | ((iv & 0xf00) >> 8),\n (iv & 0xf0) | ((iv & 0xf0) >> 4),\n (iv & 0xf) | ((iv & 0xf) << 4),\n 1];\n } else if (str.length === 7) {\n var iv = parseInt(str.substr(1), 16); // TODO(deanm): Stricter parsing.\n if (!(iv >= 0 && iv <= 0xffffff)) return null; // Covers NaN.\n return [(iv & 0xff0000) >> 16,\n (iv & 0xff00) >> 8,\n iv & 0xff,\n 1];\n }\n\n return null;\n }\n\n var op = str.indexOf('('), ep = str.indexOf(')');\n if (op !== -1 && ep + 1 === str.length) {\n var fname = str.substr(0, op);\n var params = str.substr(op+1, ep-(op+1)).split(',');\n var alpha = 1; // To allow case fallthrough.\n switch (fname) {\n case 'rgba':\n if (params.length !== 4) return null;\n alpha = parse_css_float(params.pop());\n // Fall through.\n case 'rgb':\n if (params.length !== 3) return null;\n return [parse_css_int(params[0]),\n parse_css_int(params[1]),\n parse_css_int(params[2]),\n alpha];\n case 'hsla':\n if (params.length !== 4) return null;\n alpha = parse_css_float(params.pop());\n // Fall through.\n case 'hsl':\n if (params.length !== 3) return null;\n var h = (((parseFloat(params[0]) % 360) + 360) % 360) / 360; // 0 .. 1\n // NOTE(deanm): According to the CSS spec s/l should only be\n // percentages, but we don't bother and let float or percentage.\n var s = parse_css_float(params[1]);\n var l = parse_css_float(params[2]);\n var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;\n var m1 = l * 2 - m2;\n return [clamp_css_byte(css_hue_to_rgb(m1, m2, h+1/3) * 255),\n clamp_css_byte(css_hue_to_rgb(m1, m2, h) * 255),\n clamp_css_byte(css_hue_to_rgb(m1, m2, h-1/3) * 255),\n alpha];\n default:\n return null;\n }\n }\n\n return null;\n}\n\ntry { exports.parseCSSColor = parseCSSColor } catch(e) { }\n","// @flow\n\nimport {parseCSSColor} from 'csscolorparser';\n\n/**\n * An RGBA color value. Create instances from color strings using the static\n * method `Color.parse`. The constructor accepts RGB channel values in the range\n * `[0, 1]`, premultiplied by A.\n *\n * @param {number} r The red channel.\n * @param {number} g The green channel.\n * @param {number} b The blue channel.\n * @param {number} a The alpha channel.\n * @private\n */\nclass Color {\n r: number;\n g: number;\n b: number;\n a: number;\n\n constructor(r: number, g: number, b: number, a: number = 1) {\n this.r = r;\n this.g = g;\n this.b = b;\n this.a = a;\n }\n\n static black: Color;\n static white: Color;\n static transparent: Color;\n static red: Color;\n static blue: Color;\n\n /**\n * Parses valid CSS color strings and returns a `Color` instance.\n * @returns A `Color` instance, or `undefined` if the input is not a valid color string.\n */\n static parse(input?: string | Color | null): Color | void {\n if (!input) {\n return undefined;\n }\n\n if (input instanceof Color) {\n return input;\n }\n\n if (typeof input !== 'string') {\n return undefined;\n }\n\n const rgba = parseCSSColor(input);\n if (!rgba) {\n return undefined;\n }\n\n return new Color(\n rgba[0] / 255 * rgba[3],\n rgba[1] / 255 * rgba[3],\n rgba[2] / 255 * rgba[3],\n rgba[3]\n );\n }\n\n /**\n * Returns an RGBA string representing the color value.\n *\n * @returns An RGBA string.\n * @example\n * var purple = new Color.parse('purple');\n * purple.toString; // = \"rgba(128,0,128,1)\"\n * var translucentGreen = new Color.parse('rgba(26, 207, 26, .73)');\n * translucentGreen.toString(); // = \"rgba(26,207,26,0.73)\"\n */\n toString(): string {\n const [r, g, b, a] = this.toArray();\n return `rgba(${Math.round(r)},${Math.round(g)},${Math.round(b)},${a})`;\n }\n\n /**\n * Returns an RGBA array of values representing the color, unpremultiplied by A.\n *\n * @returns An array of RGBA color values in the range [0, 255].\n */\n toArray(): [number, number, number, number] {\n const {r, g, b, a} = this;\n return a === 0 ? [0, 0, 0, 0] : [\n r * 255 / a,\n g * 255 / a,\n b * 255 / a,\n a\n ];\n }\n\n /**\n * Returns a RGBA array of float values representing the color, unpremultiplied by A.\n *\n * @returns An array of RGBA color values in the range [0, 1].\n */\n toArray01(): [number, number, number, number] {\n const {r, g, b, a} = this;\n return a === 0 ? [0, 0, 0, 0] : [\n r / a,\n g / a,\n b / a,\n a\n ];\n }\n\n /**\n * Returns an RGB array of values representing the color, unpremultiplied by A and multiplied by a scalar.\n *\n * @param {number} scale A scale to apply to the unpremultiplied-alpha values.\n * @returns An array of RGB color values in the range [0, 1].\n */\n toArray01Scaled(scale: number): [number, number, number] {\n const {r, g, b, a} = this;\n return a === 0 ? [0, 0, 0] : [\n (r / a) * scale,\n (g / a) * scale,\n (b / a) * scale\n ];\n }\n\n /**\n * Returns an RGBA array of values representing the color, premultiplied by A.\n *\n * @returns An array of RGBA color values in the range [0, 1].\n */\n toArray01PremultipliedAlpha(): [number, number, number, number] {\n const {r, g, b, a} = this;\n return [\n r,\n g,\n b,\n a\n ];\n }\n\n /**\n * Returns an RGBA array of values representing the color, unpremultiplied by A, and converted to linear color space.\n * The color is defined by sRGB primaries, but the sRGB transfer function is reversed to obtain linear energy.\n *\n * @returns An array of RGBA color values in the range [0, 1].\n */\n toArray01Linear(): [number, number, number, number] {\n const {r, g, b, a} = this;\n return a === 0 ? [0, 0, 0, 0] : [\n Math.pow((r / a), 2.2),\n Math.pow((g / a), 2.2),\n Math.pow((b / a), 2.2),\n a\n ];\n }\n}\n\nColor.black = new Color(0, 0, 0, 1);\nColor.white = new Color(1, 1, 1, 1);\nColor.transparent = new Color(0, 0, 0, 0);\nColor.red = new Color(1, 0, 0, 1);\nColor.blue = new Color(0, 0, 1, 1);\n\nexport default Color;\n","// @flow\n\nexport default class Collator {\n locale: string | null;\n sensitivity: 'base' | 'accent' | 'case' | 'variant';\n collator: Intl$Collator;\n\n constructor(caseSensitive: boolean, diacriticSensitive: boolean, locale: string | null) {\n if (caseSensitive)\n this.sensitivity = diacriticSensitive ? 'variant' : 'case';\n else\n this.sensitivity = diacriticSensitive ? 'accent' : 'base';\n\n this.locale = locale;\n this.collator = new Intl.Collator(this.locale ? this.locale : [],\n {sensitivity: this.sensitivity, usage: 'search'});\n }\n\n compare(lhs: string, rhs: string): number {\n return this.collator.compare(lhs, rhs);\n }\n\n resolvedLocale(): string {\n // We create a Collator without \"usage: search\" because we don't want\n // the search options encoded in our result (e.g. \"en-u-co-search\")\n return new Intl.Collator(this.locale ? this.locale : [])\n .resolvedOptions().locale;\n }\n}\n","// @flow\nimport type Color from '../../util/color.js';\nimport type ResolvedImage from '../types/resolved_image.js';\n\nexport class FormattedSection {\n text: string;\n image: ResolvedImage | null;\n scale: number | null;\n fontStack: string | null;\n textColor: Color | null;\n\n constructor(text: string, image: ResolvedImage | null, scale: number | null, fontStack: string | null, textColor: Color | null) {\n // combine characters so that diacritic marks are not separate code points\n this.text = text.normalize ? text.normalize() : text;\n this.image = image;\n this.scale = scale;\n this.fontStack = fontStack;\n this.textColor = textColor;\n }\n}\n\nexport default class Formatted {\n sections: Array<FormattedSection>;\n\n constructor(sections: Array<FormattedSection>) {\n this.sections = sections;\n }\n\n static fromString(unformatted: string): Formatted {\n return new Formatted([new FormattedSection(unformatted, null, null, null, null)]);\n }\n\n isEmpty(): boolean {\n if (this.sections.length === 0) return true;\n return !this.sections.some(section => section.text.length !== 0 ||\n (section.image && section.image.namePrimary.length !== 0));\n }\n\n static factory(text: Formatted | string): Formatted {\n if (text instanceof Formatted) {\n return text;\n } else {\n return Formatted.fromString(text);\n }\n }\n\n toString(): string {\n if (this.sections.length === 0) return '';\n return this.sections.map(section => section.text).join('');\n }\n\n serialize(): Array<mixed> {\n const serialized: Array<mixed> = [\"format\"];\n for (const section of this.sections) {\n if (section.image) {\n serialized.push([\"image\", section.image.namePrimary]);\n continue;\n }\n serialized.push(section.text);\n const options: { [key: string]: mixed } = {};\n if (section.fontStack) {\n options[\"text-font\"] = [\"literal\", section.fontStack.split(',')];\n }\n if (section.scale) {\n options[\"font-scale\"] = section.scale;\n }\n if (section.textColor) {\n options[\"text-color\"] = ([\"rgba\"]: Array<mixed>).concat(section.textColor.toArray());\n }\n serialized.push(options);\n }\n return serialized;\n }\n}\n","// @flow\n\nexport type ResolvedImageOptions = {\n namePrimary: string,\n nameSecondary: ?string,\n available: boolean\n};\n\nexport default class ResolvedImage {\n namePrimary: string;\n nameSecondary: ?string;\n available: boolean;\n\n constructor(options: ResolvedImageOptions) {\n this.namePrimary = options.namePrimary;\n if (options.nameSecondary) {\n this.nameSecondary = options.nameSecondary;\n }\n this.available = options.available;\n }\n\n toString(): string {\n if (this.nameSecondary) {\n return `[${this.namePrimary},${this.nameSecondary}]`;\n }\n return this.namePrimary;\n }\n\n static fromString(namePrimary: string, nameSecondary: ?string): ResolvedImage | null {\n if (!namePrimary) return null; // treat empty values as no image\n return new ResolvedImage({namePrimary, nameSecondary, available: false});\n }\n\n serialize(): Array<string> {\n if (this.nameSecondary) {\n return [\"image\", this.namePrimary, this.nameSecondary];\n }\n return [\"image\", this.namePrimary];\n }\n}\n","// @flow\n\nimport assert from 'assert';\n\nimport Color from '../util/color.js';\nimport Collator from './types/collator.js';\nimport Formatted from './types/formatted.js';\nimport ResolvedImage from './types/resolved_image.js';\nimport {NullType, NumberType, StringType, BooleanType, ColorType, ObjectType, ValueType, CollatorType, FormattedType, ResolvedImageType, array} from './types.js';\n\nimport type {Type} from './types.js';\n\nexport function validateRGBA(r: mixed, g: mixed, b: mixed, a?: mixed): string | null {\n if (!(\n typeof r === 'number' && r >= 0 && r <= 255 &&\n typeof g === 'number' && g >= 0 && g <= 255 &&\n typeof b === 'number' && b >= 0 && b <= 255\n )) {\n const value = typeof a === 'number' ? [r, g, b, a] : [r, g, b];\n return `Invalid rgba value [${value.join(', ')}]: 'r', 'g', and 'b' must be between 0 and 255.`;\n }\n\n if (!(\n typeof a === 'undefined' || (typeof a === 'number' && a >= 0 && a <= 1)\n )) {\n return `Invalid rgba value [${[r, g, b, a].join(', ')}]: 'a' must be between 0 and 1.`;\n }\n\n return null;\n}\n\nexport function validateHSLA(h: mixed, s: mixed, l: mixed, a?: mixed): string | null {\n if (!(\n typeof h === 'number' && h >= 0 && h <= 360\n )) {\n const value = typeof a === 'number' ? [h, s, l, a] : [h, s, l];\n return `Invalid hsla value [${value.join(', ')}]: 'h' must be between 0 and 360.`;\n }\n\n if (!(\n typeof s === 'number' && s >= 0 && s <= 100 &&\n typeof l === 'number' && l >= 0 && l <= 100\n )) {\n const value = typeof a === 'number' ? [h, s, l, a] : [h, s, l];\n return `Invalid hsla value [${value.join(', ')}]: 's', and 'l' must be between 0 and 100.`;\n }\n\n if (!(\n typeof a === 'undefined' || (typeof a === 'number' && a >= 0 && a <= 1)\n )) {\n return `Invalid hsla value [${[h, s, l, a].join(', ')}]: 'a' must be between 0 and 1.`;\n }\n\n return null;\n}\n\nexport type Value = null | string | boolean | number | Color | Collator | Formatted | ResolvedImage | $ReadOnlyArray<Value> | { +[string]: Value }\n\nexport function isValue(mixed: mixed): boolean {\n if (mixed === null) {\n return true;\n } else if (typeof mixed === 'string') {\n return true;\n } else if (typeof mixed === 'boolean') {\n return true;\n } else if (typeof mixed === 'number') {\n return true;\n } else if (mixed instanceof Color) {\n return true;\n } else if (mixed instanceof Collator) {\n return true;\n } else if (mixed instanceof Formatted) {\n return true;\n } else if (mixed instanceof ResolvedImage) {\n return true;\n } else if (Array.isArray(mixed)) {\n for (const item of mixed) {\n if (!isValue(item)) {\n return false;\n }\n }\n return true;\n } else if (typeof mixed === 'object') {\n for (const key in mixed) {\n if (!isValue(mixed[key])) {\n return false;\n }\n }\n return true;\n } else {\n return false;\n }\n}\n\nexport function typeOf(value: Value): Type {\n if (value === null) {\n return NullType;\n } else if (typeof value === 'string') {\n return StringType;\n } else if (typeof value === 'boolean') {\n return BooleanType;\n } else if (typeof value === 'number') {\n return NumberType;\n } else if (value instanceof Color) {\n return ColorType;\n } else if (value instanceof Collator) {\n return CollatorType;\n } else if (value instanceof Formatted) {\n return FormattedType;\n } else if (value instanceof ResolvedImage) {\n return ResolvedImageType;\n } else if (Array.isArray(value)) {\n const length = value.length;\n let itemType: Type | typeof undefined;\n\n for (const item of value) {\n const t = typeOf(item);\n if (!itemType) {\n itemType = t;\n } else if (itemType === t) {\n continue;\n } else {\n itemType = ValueType;\n break;\n }\n }\n\n return array(itemType || ValueType, length);\n } else {\n assert(typeof value === 'object');\n return ObjectType;\n }\n}\n\nexport function toString(value: Value): string {\n const type = typeof value;\n if (value === null) {\n return '';\n } else if (type === 'string' || type === 'number' || type === 'boolean') {\n return String(value);\n } else if (value instanceof Color || value instanceof Formatted || value instanceof ResolvedImage) {\n return value.toString();\n } else {\n return JSON.stringify(value);\n }\n}\n\nexport {Color, Collator};\n","// @flow\n\nimport assert from 'assert';\nimport {isValue, typeOf, Color} from '../values.js';\nimport Formatted from '../types/formatted.js';\n\nimport type {Type} from '../types.js';\nimport type {Value} from '../values.js';\nimport type {Expression, SerializedExpression} from '../expression.js';\nimport type ParsingContext from '../parsing_context.js';\n\nclass Literal implements Expression {\n type: Type;\n value: Value;\n\n constructor(type: Type, value: Value) {\n this.type = type;\n this.value = value;\n }\n\n static parse(args: $ReadOnlyArray<mixed>, context: ParsingContext): void | Literal {\n if (args.length !== 2)\n return context.error(`'literal' expression requires exactly one argument, but found ${args.length - 1} instead.`);\n\n if (!isValue(args[1]))\n return context.error(`invalid value`);\n\n const value = (args[1]: any);\n let type = typeOf(value);\n\n // special case: infer the item type if possible for zero-length arrays\n const expected = context.expectedType;\n if (\n type.kind === 'array' &&\n type.N === 0 &&\n expected &&\n expected.kind === 'array' &&\n (typeof expected.N !== 'number' || expected.N === 0)\n ) {\n type = expected;\n }\n\n return new Literal(type, value);\n }\n\n evaluate(): Value {\n return this.value;\n }\n\n eachChild() {}\n\n outputDefined(): boolean {\n return true;\n }\n\n serialize(): SerializedExpression {\n if (this.type.kind === 'array' || this.type.kind === 'object') {\n return [\"literal\", this.value];\n } else if (this.value instanceof Color) {\n // Constant-folding can generate Literal expressions that you\n // couldn't actually generate with a \"literal\" expression,\n // so we have to implement an equivalent serialization here\n return [\"rgba\"].concat(this.value.toArray());\n } else if (this.value instanceof Formatted) {\n // Same as Color\n return this.value.serialize();\n } else {\n assert(this.value === null ||\n typeof this.value === 'string' ||\n typeof this.value === 'number' ||\n typeof this.value === 'boolean');\n return (this.value: any);\n }\n }\n}\n\nexport default Literal;\n","// @flow\n\nclass RuntimeError {\n name: string;\n message: string;\n\n constructor(message: string) {\n this.name = 'ExpressionEvaluationError';\n this.message = message;\n }\n\n toJSON(): string {\n return this.message;\n }\n}\n\nexport default RuntimeError;\n","// @flow\n\nimport assert from 'assert';\n\nimport {\n ObjectType,\n ValueType,\n StringType,\n NumberType,\n BooleanType,\n checkSubtype,\n toString,\n array\n} from '../types.js';\nimport RuntimeError from '../runtime_error.js';\nimport {typeOf} from '../values.js';\n\nimport type {Expression, SerializedExpression} from '../expression.js';\nimport type ParsingContext from '../parsing_context.js';\nimport type EvaluationContext from '../evaluation_context.js';\nimport type {Type} from '../types.js';\n\nconst types = {\n string: StringType,\n number: NumberType,\n boolean: BooleanType,\n object: ObjectType\n};\n\nclass Assertion implements Expression {\n type: Type;\n args: Array<Expression>;\n\n constructor(type: Type, args: Array<Expression>) {\n this.type = type;\n this.args = args;\n }\n\