1 | "use strict";
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.createIndexNode = void 0;
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7 |
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8 | var _is = require("../../utils/is");
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9 |
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10 | var _index = require("../transform/index.transform");
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11 |
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12 | var _array = require("../../utils/array");
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13 |
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14 | var _string = require("../../utils/string");
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15 |
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16 | var _factory = require("../../utils/factory");
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17 |
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18 | function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
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19 |
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20 | function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
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21 |
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22 | function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
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23 |
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24 | function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
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25 |
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26 | var name = 'IndexNode';
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27 | var dependencies = ['Range', 'Node', 'Index', 'size'];
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28 | var createIndexNode =
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29 |
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30 | (0, _factory.factory)(name, dependencies, function (_ref) {
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31 | var Range = _ref.Range,
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32 | Node = _ref.Node,
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33 | Index = _ref.Index,
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34 | size = _ref.size;
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35 | var index = (0, _index.createIndexTransform)({
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36 | Index: Index
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37 | });
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38 | |
39 |
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40 |
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41 |
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42 |
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43 |
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44 |
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45 |
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46 |
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47 |
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48 |
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49 |
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50 |
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51 |
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52 |
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53 |
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54 | function IndexNode(dimensions, dotNotation) {
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55 | if (!(this instanceof IndexNode)) {
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56 | throw new SyntaxError('Constructor must be called with the new operator');
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57 | }
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58 |
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59 | this.dimensions = dimensions;
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60 | this.dotNotation = dotNotation || false;
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61 |
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62 | if (!Array.isArray(dimensions) || !dimensions.every(_is.isNode)) {
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63 | throw new TypeError('Array containing Nodes expected for parameter "dimensions"');
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64 | }
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65 |
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66 | if (this.dotNotation && !this.isObjectProperty()) {
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67 | throw new Error('dotNotation only applicable for object properties');
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68 | }
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69 |
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70 |
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71 | var deprecated = function deprecated() {
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72 | throw new Error('Property `IndexNode.object` is deprecated, use `IndexNode.fn` instead');
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73 | };
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74 |
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75 | Object.defineProperty(this, 'object', {
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76 | get: deprecated,
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77 | set: deprecated
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78 | });
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79 | }
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80 |
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81 | IndexNode.prototype = new Node();
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82 | IndexNode.prototype.type = 'IndexNode';
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83 | IndexNode.prototype.isIndexNode = true;
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84 | /**
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85 | * Compile a node into a JavaScript function.
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86 | * This basically pre-calculates as much as possible and only leaves open
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87 | * calculations which depend on a dynamic scope with variables.
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88 | * @param {Object} math Math.js namespace with functions and constants.
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89 | * @param {Object} argNames An object with argument names as key and `true`
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90 | * as value. Used in the SymbolNode to optimize
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91 | * for arguments from user assigned functions
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92 | * (see FunctionAssignmentNode) or special symbols
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93 | * like `end` (see IndexNode).
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94 | * @return {function} Returns a function which can be called like:
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95 | * evalNode(scope: Object, args: Object, context: *)
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96 | */
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97 |
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98 | IndexNode.prototype._compile = function (math, argNames) {
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99 |
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100 |
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101 |
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102 |
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103 |
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104 | var evalDimensions = (0, _array.map)(this.dimensions, function (range, i) {
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105 | if ((0, _is.isRangeNode)(range)) {
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106 | if (range.needsEnd()) {
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107 |
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108 | var childArgNames = Object.create(argNames);
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109 | childArgNames.end = true;
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110 |
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111 | var evalStart = range.start._compile(math, childArgNames);
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112 |
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113 | var evalEnd = range.end._compile(math, childArgNames);
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114 |
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115 | var evalStep = range.step ? range.step._compile(math, childArgNames) : function () {
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116 | return 1;
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117 | };
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118 | return function evalDimension(scope, args, context) {
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119 | var s = size(context).valueOf();
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120 | var childArgs = Object.create(args);
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121 | childArgs.end = s[i];
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122 | return createRange(evalStart(scope, childArgs, context), evalEnd(scope, childArgs, context), evalStep(scope, childArgs, context));
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123 | };
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124 | } else {
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125 |
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126 | var _evalStart = range.start._compile(math, argNames);
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127 |
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128 | var _evalEnd = range.end._compile(math, argNames);
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129 |
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130 | var _evalStep = range.step ? range.step._compile(math, argNames) : function () {
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131 | return 1;
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132 | };
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133 |
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134 | return function evalDimension(scope, args, context) {
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135 | return createRange(_evalStart(scope, args, context), _evalEnd(scope, args, context), _evalStep(scope, args, context));
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136 | };
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137 | }
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138 | } else if ((0, _is.isSymbolNode)(range) && range.name === 'end') {
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139 |
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140 | var _childArgNames = Object.create(argNames);
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141 |
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142 | _childArgNames.end = true;
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143 |
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144 | var evalRange = range._compile(math, _childArgNames);
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145 |
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146 | return function evalDimension(scope, args, context) {
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147 | var s = size(context).valueOf();
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148 | var childArgs = Object.create(args);
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149 | childArgs.end = s[i];
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150 | return evalRange(scope, childArgs, context);
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151 | };
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152 | } else {
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153 |
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154 | var _evalRange = range._compile(math, argNames);
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155 |
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156 | return function evalDimension(scope, args, context) {
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157 | return _evalRange(scope, args, context);
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158 | };
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159 | }
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160 | });
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161 | return function evalIndexNode(scope, args, context) {
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162 | var dimensions = (0, _array.map)(evalDimensions, function (evalDimension) {
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163 | return evalDimension(scope, args, context);
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164 | });
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165 | return index.apply(void 0, _toConsumableArray(dimensions));
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166 | };
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167 | };
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168 | |
169 |
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170 |
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171 |
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172 |
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173 |
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174 | IndexNode.prototype.forEach = function (callback) {
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175 | for (var i = 0; i < this.dimensions.length; i++) {
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176 | callback(this.dimensions[i], 'dimensions[' + i + ']', this);
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177 | }
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178 | };
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179 | |
180 |
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181 |
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182 |
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183 |
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184 |
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185 |
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186 |
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187 | IndexNode.prototype.map = function (callback) {
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188 | var dimensions = [];
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189 |
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190 | for (var i = 0; i < this.dimensions.length; i++) {
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191 | dimensions[i] = this._ifNode(callback(this.dimensions[i], 'dimensions[' + i + ']', this));
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192 | }
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193 |
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194 | return new IndexNode(dimensions, this.dotNotation);
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195 | };
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196 | |
197 |
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198 |
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199 |
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200 |
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201 |
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202 | IndexNode.prototype.clone = function () {
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203 | return new IndexNode(this.dimensions.slice(0), this.dotNotation);
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204 | };
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205 | |
206 |
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207 |
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208 |
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209 |
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210 |
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211 | IndexNode.prototype.isObjectProperty = function () {
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212 | return this.dimensions.length === 1 && (0, _is.isConstantNode)(this.dimensions[0]) && typeof this.dimensions[0].value === 'string';
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213 | };
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214 | |
215 |
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216 |
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217 |
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218 |
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219 |
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220 |
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221 | IndexNode.prototype.getObjectProperty = function () {
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222 | return this.isObjectProperty() ? this.dimensions[0].value : null;
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223 | };
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224 | |
225 |
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226 |
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227 |
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228 |
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229 |
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230 |
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231 | IndexNode.prototype._toString = function (options) {
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232 |
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233 | return this.dotNotation ? '.' + this.getObjectProperty() : '[' + this.dimensions.join(', ') + ']';
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234 | };
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235 | |
236 |
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237 |
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238 |
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239 |
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240 |
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241 | IndexNode.prototype.toJSON = function () {
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242 | return {
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243 | mathjs: 'IndexNode',
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244 | dimensions: this.dimensions,
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245 | dotNotation: this.dotNotation
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246 | };
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247 | };
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248 | |
249 |
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250 |
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251 |
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252 |
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253 |
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254 |
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255 |
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256 |
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257 | IndexNode.fromJSON = function (json) {
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258 | return new IndexNode(json.dimensions, json.dotNotation);
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259 | };
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260 | |
261 |
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262 |
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263 |
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264 |
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265 |
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266 |
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267 | IndexNode.prototype.toHTML = function (options) {
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268 |
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269 | var dimensions = [];
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270 |
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271 | for (var i = 0; i < this.dimensions.length; i++) {
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272 | dimensions[i] = this.dimensions[i].toHTML();
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273 | }
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274 |
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275 | if (this.dotNotation) {
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276 | return '<span class="math-operator math-accessor-operator">.</span>' + '<span class="math-symbol math-property">' + (0, _string.escape)(this.getObjectProperty()) + '</span>';
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277 | } else {
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278 | return '<span class="math-parenthesis math-square-parenthesis">[</span>' + dimensions.join('<span class="math-separator">,</span>') + '<span class="math-parenthesis math-square-parenthesis">]</span>';
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279 | }
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280 | };
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281 | |
282 |
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283 |
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284 |
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285 |
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286 |
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287 |
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288 | IndexNode.prototype._toTex = function (options) {
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289 | var dimensions = this.dimensions.map(function (range) {
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290 | return range.toTex(options);
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291 | });
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292 | return this.dotNotation ? '.' + this.getObjectProperty() + '' : '_{' + dimensions.join(',') + '}';
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293 | };
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294 |
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295 |
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296 | function createRange(start, end, step) {
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297 | return new Range((0, _is.isBigNumber)(start) ? start.toNumber() : start, (0, _is.isBigNumber)(end) ? end.toNumber() : end, (0, _is.isBigNumber)(step) ? step.toNumber() : step);
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298 | }
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299 |
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300 | return IndexNode;
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301 | }, {
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302 | isClass: true,
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303 | isNode: true
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304 | });
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305 | exports.createIndexNode = createIndexNode; |
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