1 | /*! *****************************************************************************
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2 | Copyright (C) Microsoft. All rights reserved.
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3 | Licensed under the Apache License, Version 2.0 (the "License"); you may not use
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4 | this file except in compliance with the License. You may obtain a copy of the
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5 | License at http://www.apache.org/licenses/LICENSE-2.0
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6 |
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7 | THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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8 | KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
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9 | WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
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10 | MERCHANTABLITY OR NON-INFRINGEMENT.
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11 |
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12 | See the Apache Version 2.0 License for specific language governing permissions
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13 | and limitations under the License.
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14 | ***************************************************************************** */
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15 | declare namespace Reflect {
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16 | /**
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17 | * Applies a set of decorators to a target object.
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18 | * @param decorators An array of decorators.
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19 | * @param target The target object.
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20 | * @returns The result of applying the provided decorators.
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21 | * @remarks Decorators are applied in reverse order of their positions in the array.
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22 | * @example
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23 | *
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24 | * class Example { }
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25 | *
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26 | * // constructor
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27 | * Example = Reflect.decorate(decoratorsArray, Example);
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28 | *
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29 | */
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30 | function decorate(decorators: ClassDecorator[], target: Function): Function;
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31 | /**
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32 | * Applies a set of decorators to a property of a target object.
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33 | * @param decorators An array of decorators.
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34 | * @param target The target object.
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35 | * @param propertyKey The property key to decorate.
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36 | * @param attributes A property descriptor.
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37 | * @remarks Decorators are applied in reverse order.
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38 | * @example
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39 | *
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40 | * class Example {
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41 | * // property declarations are not part of ES6, though they are valid in TypeScript:
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42 | * // static staticProperty;
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43 | * // property;
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44 | *
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45 | * static staticMethod() { }
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46 | * method() { }
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47 | * }
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48 | *
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49 | * // property (on constructor)
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50 | * Reflect.decorate(decoratorsArray, Example, "staticProperty");
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51 | *
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52 | * // property (on prototype)
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53 | * Reflect.decorate(decoratorsArray, Example.prototype, "property");
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54 | *
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55 | * // method (on constructor)
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56 | * Object.defineProperty(Example, "staticMethod",
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57 | * Reflect.decorate(decoratorsArray, Example, "staticMethod",
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58 | * Object.getOwnPropertyDescriptor(Example, "staticMethod")));
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59 | *
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60 | * // method (on prototype)
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61 | * Object.defineProperty(Example.prototype, "method",
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62 | * Reflect.decorate(decoratorsArray, Example.prototype, "method",
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63 | * Object.getOwnPropertyDescriptor(Example.prototype, "method")));
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64 | *
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65 | */
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66 | function decorate(decorators: (PropertyDecorator | MethodDecorator)[], target: Object, propertyKey: string | symbol, attributes?: PropertyDescriptor): PropertyDescriptor;
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67 | /**
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68 | * A default metadata decorator factory that can be used on a class, class member, or parameter.
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69 | * @param metadataKey The key for the metadata entry.
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70 | * @param metadataValue The value for the metadata entry.
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71 | * @returns A decorator function.
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72 | * @remarks
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73 | * If `metadataKey` is already defined for the target and target key, the
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74 | * metadataValue for that key will be overwritten.
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75 | * @example
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76 | *
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77 | * // constructor
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78 | * @Reflect.metadata(key, value)
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79 | * class Example {
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80 | * }
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81 | *
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82 | * // property (on constructor, TypeScript only)
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83 | * class Example {
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84 | * @Reflect.metadata(key, value)
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85 | * static staticProperty;
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86 | * }
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87 | *
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88 | * // property (on prototype, TypeScript only)
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89 | * class Example {
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90 | * @Reflect.metadata(key, value)
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91 | * property;
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92 | * }
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93 | *
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94 | * // method (on constructor)
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95 | * class Example {
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96 | * @Reflect.metadata(key, value)
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97 | * static staticMethod() { }
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98 | * }
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99 | *
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100 | * // method (on prototype)
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101 | * class Example {
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102 | * @Reflect.metadata(key, value)
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103 | * method() { }
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104 | * }
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105 | *
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106 | */
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107 | function metadata(metadataKey: any, metadataValue: any): {
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108 | (target: Function): void;
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109 | (target: Object, propertyKey: string | symbol): void;
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110 | };
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111 | /**
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112 | * Define a unique metadata entry on the target.
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113 | * @param metadataKey A key used to store and retrieve metadata.
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114 | * @param metadataValue A value that contains attached metadata.
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115 | * @param target The target object on which to define metadata.
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116 | * @example
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117 | *
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118 | * class Example {
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119 | * }
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120 | *
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121 | * // constructor
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122 | * Reflect.defineMetadata("custom:annotation", options, Example);
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123 | *
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124 | * // decorator factory as metadata-producing annotation.
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125 | * function MyAnnotation(options): ClassDecorator {
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126 | * return target => Reflect.defineMetadata("custom:annotation", options, target);
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127 | * }
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128 | *
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129 | */
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130 | function defineMetadata(metadataKey: any, metadataValue: any, target: Object): void;
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131 | /**
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132 | * Define a unique metadata entry on the target.
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133 | * @param metadataKey A key used to store and retrieve metadata.
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134 | * @param metadataValue A value that contains attached metadata.
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135 | * @param target The target object on which to define metadata.
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136 | * @param propertyKey The property key for the target.
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137 | * @example
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138 | *
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139 | * class Example {
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140 | * // property declarations are not part of ES6, though they are valid in TypeScript:
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141 | * // static staticProperty;
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142 | * // property;
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143 | *
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144 | * static staticMethod(p) { }
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145 | * method(p) { }
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146 | * }
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147 | *
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148 | * // property (on constructor)
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149 | * Reflect.defineMetadata("custom:annotation", Number, Example, "staticProperty");
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150 | *
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151 | * // property (on prototype)
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152 | * Reflect.defineMetadata("custom:annotation", Number, Example.prototype, "property");
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153 | *
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154 | * // method (on constructor)
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155 | * Reflect.defineMetadata("custom:annotation", Number, Example, "staticMethod");
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156 | *
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157 | * // method (on prototype)
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158 | * Reflect.defineMetadata("custom:annotation", Number, Example.prototype, "method");
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159 | *
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160 | * // decorator factory as metadata-producing annotation.
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161 | * function MyAnnotation(options): PropertyDecorator {
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162 | * return (target, key) => Reflect.defineMetadata("custom:annotation", options, target, key);
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163 | * }
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164 | *
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165 | */
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166 | function defineMetadata(metadataKey: any, metadataValue: any, target: Object, propertyKey: string | symbol): void;
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167 | /**
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168 | * Gets a value indicating whether the target object or its prototype chain has the provided metadata key defined.
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169 | * @param metadataKey A key used to store and retrieve metadata.
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170 | * @param target The target object on which the metadata is defined.
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171 | * @returns `true` if the metadata key was defined on the target object or its prototype chain; otherwise, `false`.
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172 | * @example
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173 | *
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174 | * class Example {
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175 | * }
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176 | *
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177 | * // constructor
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178 | * result = Reflect.hasMetadata("custom:annotation", Example);
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179 | *
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180 | */
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181 | function hasMetadata(metadataKey: any, target: Object): boolean;
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182 | /**
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183 | * Gets a value indicating whether the target object or its prototype chain has the provided metadata key defined.
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184 | * @param metadataKey A key used to store and retrieve metadata.
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185 | * @param target The target object on which the metadata is defined.
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186 | * @param propertyKey The property key for the target.
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187 | * @returns `true` if the metadata key was defined on the target object or its prototype chain; otherwise, `false`.
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188 | * @example
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189 | *
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190 | * class Example {
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191 | * // property declarations are not part of ES6, though they are valid in TypeScript:
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192 | * // static staticProperty;
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193 | * // property;
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194 | *
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195 | * static staticMethod(p) { }
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196 | * method(p) { }
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197 | * }
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198 | *
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199 | * // property (on constructor)
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200 | * result = Reflect.hasMetadata("custom:annotation", Example, "staticProperty");
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201 | *
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202 | * // property (on prototype)
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203 | * result = Reflect.hasMetadata("custom:annotation", Example.prototype, "property");
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204 | *
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205 | * // method (on constructor)
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206 | * result = Reflect.hasMetadata("custom:annotation", Example, "staticMethod");
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207 | *
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208 | * // method (on prototype)
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209 | * result = Reflect.hasMetadata("custom:annotation", Example.prototype, "method");
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210 | *
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211 | */
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212 | function hasMetadata(metadataKey: any, target: Object, propertyKey: string | symbol): boolean;
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213 | /**
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214 | * Gets a value indicating whether the target object has the provided metadata key defined.
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215 | * @param metadataKey A key used to store and retrieve metadata.
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216 | * @param target The target object on which the metadata is defined.
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217 | * @returns `true` if the metadata key was defined on the target object; otherwise, `false`.
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218 | * @example
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219 | *
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220 | * class Example {
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221 | * }
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222 | *
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223 | * // constructor
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224 | * result = Reflect.hasOwnMetadata("custom:annotation", Example);
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225 | *
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226 | */
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227 | function hasOwnMetadata(metadataKey: any, target: Object): boolean;
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228 | /**
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229 | * Gets a value indicating whether the target object has the provided metadata key defined.
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230 | * @param metadataKey A key used to store and retrieve metadata.
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231 | * @param target The target object on which the metadata is defined.
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232 | * @param propertyKey The property key for the target.
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233 | * @returns `true` if the metadata key was defined on the target object; otherwise, `false`.
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234 | * @example
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235 | *
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236 | * class Example {
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237 | * // property declarations are not part of ES6, though they are valid in TypeScript:
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238 | * // static staticProperty;
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239 | * // property;
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240 | *
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241 | * static staticMethod(p) { }
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242 | * method(p) { }
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243 | * }
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244 | *
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245 | * // property (on constructor)
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246 | * result = Reflect.hasOwnMetadata("custom:annotation", Example, "staticProperty");
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247 | *
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248 | * // property (on prototype)
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249 | * result = Reflect.hasOwnMetadata("custom:annotation", Example.prototype, "property");
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250 | *
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251 | * // method (on constructor)
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252 | * result = Reflect.hasOwnMetadata("custom:annotation", Example, "staticMethod");
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253 | *
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254 | * // method (on prototype)
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255 | * result = Reflect.hasOwnMetadata("custom:annotation", Example.prototype, "method");
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256 | *
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257 | */
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258 | function hasOwnMetadata(metadataKey: any, target: Object, propertyKey: string | symbol): boolean;
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259 | /**
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260 | * Gets the metadata value for the provided metadata key on the target object or its prototype chain.
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261 | * @param metadataKey A key used to store and retrieve metadata.
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262 | * @param target The target object on which the metadata is defined.
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263 | * @returns The metadata value for the metadata key if found; otherwise, `undefined`.
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264 | * @example
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265 | *
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266 | * class Example {
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267 | * }
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268 | *
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269 | * // constructor
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270 | * result = Reflect.getMetadata("custom:annotation", Example);
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271 | *
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272 | */
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273 | function getMetadata(metadataKey: any, target: Object): any;
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274 | /**
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275 | * Gets the metadata value for the provided metadata key on the target object or its prototype chain.
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276 | * @param metadataKey A key used to store and retrieve metadata.
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277 | * @param target The target object on which the metadata is defined.
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278 | * @param propertyKey The property key for the target.
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279 | * @returns The metadata value for the metadata key if found; otherwise, `undefined`.
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280 | * @example
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281 | *
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282 | * class Example {
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283 | * // property declarations are not part of ES6, though they are valid in TypeScript:
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284 | * // static staticProperty;
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285 | * // property;
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286 | *
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287 | * static staticMethod(p) { }
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288 | * method(p) { }
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289 | * }
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290 | *
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291 | * // property (on constructor)
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292 | * result = Reflect.getMetadata("custom:annotation", Example, "staticProperty");
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293 | *
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294 | * // property (on prototype)
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295 | * result = Reflect.getMetadata("custom:annotation", Example.prototype, "property");
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296 | *
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297 | * // method (on constructor)
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298 | * result = Reflect.getMetadata("custom:annotation", Example, "staticMethod");
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299 | *
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300 | * // method (on prototype)
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301 | * result = Reflect.getMetadata("custom:annotation", Example.prototype, "method");
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302 | *
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303 | */
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304 | function getMetadata(metadataKey: any, target: Object, propertyKey: string | symbol): any;
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305 | /**
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306 | * Gets the metadata value for the provided metadata key on the target object.
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307 | * @param metadataKey A key used to store and retrieve metadata.
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308 | * @param target The target object on which the metadata is defined.
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309 | * @returns The metadata value for the metadata key if found; otherwise, `undefined`.
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310 | * @example
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311 | *
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312 | * class Example {
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313 | * }
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314 | *
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315 | * // constructor
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316 | * result = Reflect.getOwnMetadata("custom:annotation", Example);
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317 | *
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318 | */
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319 | function getOwnMetadata(metadataKey: any, target: Object): any;
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320 | /**
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321 | * Gets the metadata value for the provided metadata key on the target object.
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322 | * @param metadataKey A key used to store and retrieve metadata.
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323 | * @param target The target object on which the metadata is defined.
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324 | * @param propertyKey The property key for the target.
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325 | * @returns The metadata value for the metadata key if found; otherwise, `undefined`.
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326 | * @example
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327 | *
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328 | * class Example {
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329 | * // property declarations are not part of ES6, though they are valid in TypeScript:
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330 | * // static staticProperty;
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331 | * // property;
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332 | *
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333 | * static staticMethod(p) { }
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334 | * method(p) { }
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335 | * }
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336 | *
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337 | * // property (on constructor)
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338 | * result = Reflect.getOwnMetadata("custom:annotation", Example, "staticProperty");
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339 | *
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340 | * // property (on prototype)
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341 | * result = Reflect.getOwnMetadata("custom:annotation", Example.prototype, "property");
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342 | *
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343 | * // method (on constructor)
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344 | * result = Reflect.getOwnMetadata("custom:annotation", Example, "staticMethod");
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345 | *
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346 | * // method (on prototype)
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347 | * result = Reflect.getOwnMetadata("custom:annotation", Example.prototype, "method");
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348 | *
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349 | */
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350 | function getOwnMetadata(metadataKey: any, target: Object, propertyKey: string | symbol): any;
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351 | /**
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352 | * Gets the metadata keys defined on the target object or its prototype chain.
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353 | * @param target The target object on which the metadata is defined.
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354 | * @returns An array of unique metadata keys.
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355 | * @example
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356 | *
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357 | * class Example {
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358 | * }
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359 | *
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360 | * // constructor
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361 | * result = Reflect.getMetadataKeys(Example);
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362 | *
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363 | */
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364 | function getMetadataKeys(target: Object): any[];
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365 | /**
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366 | * Gets the metadata keys defined on the target object or its prototype chain.
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367 | * @param target The target object on which the metadata is defined.
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368 | * @param propertyKey The property key for the target.
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369 | * @returns An array of unique metadata keys.
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370 | * @example
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371 | *
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372 | * class Example {
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373 | * // property declarations are not part of ES6, though they are valid in TypeScript:
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374 | * // static staticProperty;
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375 | * // property;
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376 | *
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377 | * static staticMethod(p) { }
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378 | * method(p) { }
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379 | * }
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380 | *
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381 | * // property (on constructor)
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382 | * result = Reflect.getMetadataKeys(Example, "staticProperty");
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383 | *
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384 | * // property (on prototype)
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385 | * result = Reflect.getMetadataKeys(Example.prototype, "property");
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386 | *
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387 | * // method (on constructor)
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388 | * result = Reflect.getMetadataKeys(Example, "staticMethod");
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389 | *
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390 | * // method (on prototype)
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391 | * result = Reflect.getMetadataKeys(Example.prototype, "method");
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392 | *
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393 | */
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394 | function getMetadataKeys(target: Object, propertyKey: string | symbol): any[];
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395 | /**
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396 | * Gets the unique metadata keys defined on the target object.
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397 | * @param target The target object on which the metadata is defined.
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398 | * @returns An array of unique metadata keys.
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399 | * @example
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400 | *
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401 | * class Example {
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402 | * }
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403 | *
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404 | * // constructor
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405 | * result = Reflect.getOwnMetadataKeys(Example);
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406 | *
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407 | */
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408 | function getOwnMetadataKeys(target: Object): any[];
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409 | /**
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410 | * Gets the unique metadata keys defined on the target object.
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411 | * @param target The target object on which the metadata is defined.
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412 | * @param propertyKey The property key for the target.
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413 | * @returns An array of unique metadata keys.
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414 | * @example
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415 | *
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416 | * class Example {
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417 | * // property declarations are not part of ES6, though they are valid in TypeScript:
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418 | * // static staticProperty;
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419 | * // property;
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420 | *
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421 | * static staticMethod(p) { }
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422 | * method(p) { }
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423 | * }
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424 | *
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425 | * // property (on constructor)
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426 | * result = Reflect.getOwnMetadataKeys(Example, "staticProperty");
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427 | *
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428 | * // property (on prototype)
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429 | * result = Reflect.getOwnMetadataKeys(Example.prototype, "property");
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430 | *
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431 | * // method (on constructor)
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432 | * result = Reflect.getOwnMetadataKeys(Example, "staticMethod");
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433 | *
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434 | * // method (on prototype)
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435 | * result = Reflect.getOwnMetadataKeys(Example.prototype, "method");
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436 | *
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437 | */
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438 | function getOwnMetadataKeys(target: Object, propertyKey: string | symbol): any[];
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439 | /**
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440 | * Deletes the metadata entry from the target object with the provided key.
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441 | * @param metadataKey A key used to store and retrieve metadata.
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442 | * @param target The target object on which the metadata is defined.
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443 | * @returns `true` if the metadata entry was found and deleted; otherwise, false.
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444 | * @example
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445 | *
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446 | * class Example {
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447 | * }
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448 | *
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449 | * // constructor
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450 | * result = Reflect.deleteMetadata("custom:annotation", Example);
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451 | *
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452 | */
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453 | function deleteMetadata(metadataKey: any, target: Object): boolean;
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454 | /**
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455 | * Deletes the metadata entry from the target object with the provided key.
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456 | * @param metadataKey A key used to store and retrieve metadata.
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457 | * @param target The target object on which the metadata is defined.
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458 | * @param propertyKey The property key for the target.
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459 | * @returns `true` if the metadata entry was found and deleted; otherwise, false.
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460 | * @example
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461 | *
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462 | * class Example {
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463 | * // property declarations are not part of ES6, though they are valid in TypeScript:
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464 | * // static staticProperty;
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465 | * // property;
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466 | *
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467 | * static staticMethod(p) { }
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468 | * method(p) { }
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469 | * }
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470 | *
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471 | * // property (on constructor)
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472 | * result = Reflect.deleteMetadata("custom:annotation", Example, "staticProperty");
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473 | *
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474 | * // property (on prototype)
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475 | * result = Reflect.deleteMetadata("custom:annotation", Example.prototype, "property");
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476 | *
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477 | * // method (on constructor)
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478 | * result = Reflect.deleteMetadata("custom:annotation", Example, "staticMethod");
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479 | *
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480 | * // method (on prototype)
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481 | * result = Reflect.deleteMetadata("custom:annotation", Example.prototype, "method");
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482 | *
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483 | */
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484 | function deleteMetadata(metadataKey: any, target: Object, propertyKey: string | symbol): boolean;
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485 | } |
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