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5 |
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6 | "use strict";
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7 |
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8 | const TypeUnknown = 0;
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9 | const TypeNull = 1;
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10 | const TypeString = 2;
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11 | const TypeNumber = 3;
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12 | const TypeBoolean = 4;
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13 | const TypeRegExp = 5;
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14 | const TypeConditional = 6;
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15 | const TypeArray = 7;
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16 | const TypeConstArray = 8;
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17 | const TypeIdentifier = 9;
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18 | const TypeWrapped = 10;
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19 | const TypeTemplateString = 11;
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20 |
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21 | class BasicEvaluatedExpression {
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22 | constructor() {
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23 | this.type = TypeUnknown;
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24 | this.range = null;
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25 | this.falsy = false;
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26 | this.truthy = false;
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27 | this.bool = null;
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28 | this.number = null;
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29 | this.regExp = null;
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30 | this.string = null;
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31 | this.quasis = null;
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32 | this.parts = null;
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33 | this.array = null;
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34 | this.items = null;
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35 | this.options = null;
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36 | this.prefix = null;
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37 | this.postfix = null;
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38 | this.wrappedInnerExpressions = null;
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39 | this.expression = null;
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40 | }
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41 |
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42 | isNull() {
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43 | return this.type === TypeNull;
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44 | }
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45 |
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46 | isString() {
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47 | return this.type === TypeString;
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48 | }
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49 |
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50 | isNumber() {
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51 | return this.type === TypeNumber;
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52 | }
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53 |
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54 | isBoolean() {
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55 | return this.type === TypeBoolean;
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56 | }
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57 |
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58 | isRegExp() {
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59 | return this.type === TypeRegExp;
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60 | }
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61 |
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62 | isConditional() {
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63 | return this.type === TypeConditional;
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64 | }
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65 |
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66 | isArray() {
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67 | return this.type === TypeArray;
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68 | }
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69 |
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70 | isConstArray() {
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71 | return this.type === TypeConstArray;
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72 | }
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73 |
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74 | isIdentifier() {
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75 | return this.type === TypeIdentifier;
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76 | }
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77 |
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78 | isWrapped() {
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79 | return this.type === TypeWrapped;
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80 | }
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81 |
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82 | isTemplateString() {
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83 | return this.type === TypeTemplateString;
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84 | }
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85 |
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86 | isTruthy() {
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87 | return this.truthy;
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88 | }
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89 |
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90 | isFalsy() {
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91 | return this.falsy;
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92 | }
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93 |
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94 | asBool() {
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95 | if (this.truthy) return true;
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96 | if (this.falsy) return false;
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97 | if (this.isBoolean()) return this.bool;
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98 | if (this.isNull()) return false;
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99 | if (this.isString()) return this.string !== "";
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100 | if (this.isNumber()) return this.number !== 0;
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101 | if (this.isRegExp()) return true;
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102 | if (this.isArray()) return true;
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103 | if (this.isConstArray()) return true;
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104 | if (this.isWrapped()) {
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105 | return (this.prefix && this.prefix.asBool()) ||
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106 | (this.postfix && this.postfix.asBool())
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107 | ? true
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108 | : undefined;
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109 | }
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110 | if (this.isTemplateString()) {
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111 | const str = this.asString();
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112 | if (typeof str === "string") return str !== "";
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113 | }
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114 | return undefined;
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115 | }
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116 |
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117 | asString() {
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118 | if (this.isBoolean()) return `${this.bool}`;
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119 | if (this.isNull()) return "null";
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120 | if (this.isString()) return this.string;
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121 | if (this.isNumber()) return `${this.number}`;
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122 | if (this.isRegExp()) return `${this.regExp}`;
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123 | if (this.isArray()) {
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124 | let array = [];
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125 | for (const item of this.items) {
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126 | const itemStr = item.asString();
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127 | if (itemStr === undefined) return undefined;
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128 | array.push(itemStr);
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129 | }
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130 | return `${array}`;
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131 | }
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132 | if (this.isConstArray()) return `${this.array}`;
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133 | if (this.isTemplateString()) {
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134 | let str = "";
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135 | for (const part of this.parts) {
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136 | const partStr = part.asString();
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137 | if (partStr === undefined) return undefined;
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138 | str += partStr;
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139 | }
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140 | return str;
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141 | }
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142 | return undefined;
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143 | }
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144 |
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145 | setString(string) {
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146 | this.type = TypeString;
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147 | this.string = string;
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148 | return this;
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149 | }
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150 |
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151 | setNull() {
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152 | this.type = TypeNull;
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153 | return this;
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154 | }
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155 |
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156 | setNumber(number) {
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157 | this.type = TypeNumber;
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158 | this.number = number;
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159 | return this;
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160 | }
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161 |
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162 | setBoolean(bool) {
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163 | this.type = TypeBoolean;
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164 | this.bool = bool;
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165 | return this;
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166 | }
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167 |
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168 | setRegExp(regExp) {
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169 | this.type = TypeRegExp;
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170 | this.regExp = regExp;
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171 | return this;
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172 | }
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173 |
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174 | setIdentifier(identifier) {
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175 | this.type = TypeIdentifier;
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176 | this.identifier = identifier;
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177 | return this;
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178 | }
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179 |
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180 | setWrapped(prefix, postfix, innerExpressions) {
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181 | this.type = TypeWrapped;
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182 | this.prefix = prefix;
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183 | this.postfix = postfix;
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184 | this.wrappedInnerExpressions = innerExpressions;
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185 | return this;
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186 | }
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187 |
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188 | setOptions(options) {
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189 | this.type = TypeConditional;
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190 | this.options = options;
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191 | return this;
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192 | }
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193 |
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194 | addOptions(options) {
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195 | if (!this.options) {
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196 | this.type = TypeConditional;
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197 | this.options = [];
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198 | }
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199 | for (const item of options) {
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200 | this.options.push(item);
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201 | }
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202 | return this;
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203 | }
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204 |
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205 | setItems(items) {
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206 | this.type = TypeArray;
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207 | this.items = items;
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208 | return this;
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209 | }
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210 |
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211 | setArray(array) {
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212 | this.type = TypeConstArray;
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213 | this.array = array;
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214 | return this;
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215 | }
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216 |
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217 | setTemplateString(quasis, parts, kind) {
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218 | this.type = TypeTemplateString;
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219 | this.quasis = quasis;
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220 | this.parts = parts;
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221 | this.templateStringKind = kind;
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222 | return this;
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223 | }
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224 |
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225 | setTruthy() {
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226 | this.falsy = false;
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227 | this.truthy = true;
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228 | return this;
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229 | }
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230 |
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231 | setFalsy() {
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232 | this.falsy = true;
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233 | this.truthy = false;
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234 | return this;
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235 | }
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236 |
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237 | setRange(range) {
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238 | this.range = range;
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239 | return this;
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240 | }
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241 |
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242 | setExpression(expression) {
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243 | this.expression = expression;
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244 | return this;
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245 | }
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246 | }
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247 |
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248 | module.exports = BasicEvaluatedExpression;
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