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| 1 | +/* eslint-disable prefer-rest-params */ |
| 2 | +/* eslint-disable no-use-before-define */ |
| 3 | +/* eslint-disable no-shadow */ |
| 4 | +/* eslint-disable func-names */ |
| 5 | + |
| 6 | +/* |
| 7 | + * Copyright Azion |
| 8 | + * Licensed under the MIT license. See LICENSE file for details. |
| 9 | + * |
| 10 | + * Portions of this file Copyright Roman Shtylman, licensed under the MIT license. |
| 11 | + * npmjs: https://www.npmjs.com/package/process |
| 12 | + * repo: https://github.com/defunctzombie/node-process |
| 13 | + */ |
| 14 | + |
| 15 | +// shim for using process in browser |
| 16 | +const process = {}; |
| 17 | + |
| 18 | +// cached from whatever global is present so that test runners that stub it |
| 19 | +// don't break things. But we need to wrap it in a try catch in case it is |
| 20 | +// wrapped in strict mode code which doesn't define any globals. It's inside a |
| 21 | +// function because try/catches deoptimize in certain engines. |
| 22 | + |
| 23 | +let cachedSetTimeout; |
| 24 | +let cachedClearTimeout; |
| 25 | + |
| 26 | +/** |
| 27 | + * |
| 28 | + */ |
| 29 | +function defaultSetTimout() { |
| 30 | + throw new Error('setTimeout has not been defined'); |
| 31 | +} |
| 32 | +/** |
| 33 | + * |
| 34 | + */ |
| 35 | +function defaultClearTimeout() { |
| 36 | + throw new Error('clearTimeout has not been defined'); |
| 37 | +} |
| 38 | +(function () { |
| 39 | + try { |
| 40 | + if (typeof setTimeout === 'function') { |
| 41 | + cachedSetTimeout = setTimeout; |
| 42 | + } else { |
| 43 | + cachedSetTimeout = defaultSetTimout; |
| 44 | + } |
| 45 | + } catch (e) { |
| 46 | + cachedSetTimeout = defaultSetTimout; |
| 47 | + } |
| 48 | + try { |
| 49 | + if (typeof clearTimeout === 'function') { |
| 50 | + cachedClearTimeout = clearTimeout; |
| 51 | + } else { |
| 52 | + cachedClearTimeout = defaultClearTimeout; |
| 53 | + } |
| 54 | + } catch (e) { |
| 55 | + cachedClearTimeout = defaultClearTimeout; |
| 56 | + } |
| 57 | +})(); |
| 58 | +/** |
| 59 | +/** |
| 60 | + * @param {Function} fun - The function to be executed. |
| 61 | + * @returns {void} Returns nothing. |
| 62 | + */ |
| 63 | +function runTimeout(fun) { |
| 64 | + if (cachedSetTimeout === setTimeout) { |
| 65 | + // normal enviroments in sane situations |
| 66 | + return setTimeout(fun, 0); |
| 67 | + } |
| 68 | + // if setTimeout wasn't available but was latter defined |
| 69 | + if ( |
| 70 | + (cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && |
| 71 | + setTimeout |
| 72 | + ) { |
| 73 | + cachedSetTimeout = setTimeout; |
| 74 | + return setTimeout(fun, 0); |
| 75 | + } |
| 76 | + try { |
| 77 | + // when when somebody has screwed with setTimeout but no I.E. maddness |
| 78 | + return cachedSetTimeout(fun, 0); |
| 79 | + } catch (e) { |
| 80 | + try { |
| 81 | + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally |
| 82 | + return cachedSetTimeout.call(null, fun, 0); |
| 83 | + } catch (e) { |
| 84 | + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error |
| 85 | + return cachedSetTimeout.call(this, fun, 0); |
| 86 | + } |
| 87 | + } |
| 88 | +} |
| 89 | +/** |
| 90 | +/** |
| 91 | + * @param {any} marker - A marker that was returned from calling setTimeout(). |
| 92 | + * @returns {void} |
| 93 | + */ |
| 94 | +function runClearTimeout(marker) { |
| 95 | + if (cachedClearTimeout === clearTimeout) { |
| 96 | + // normal enviroments in sane situations |
| 97 | + return clearTimeout(marker); |
| 98 | + } |
| 99 | + // if clearTimeout wasn't available but was latter defined |
| 100 | + if ( |
| 101 | + (cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && |
| 102 | + clearTimeout |
| 103 | + ) { |
| 104 | + cachedClearTimeout = clearTimeout; |
| 105 | + return clearTimeout(marker); |
| 106 | + } |
| 107 | + try { |
| 108 | + // when when somebody has screwed with setTimeout but no I.E. maddness |
| 109 | + return cachedClearTimeout(marker); |
| 110 | + } catch (e) { |
| 111 | + try { |
| 112 | + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally |
| 113 | + return cachedClearTimeout.call(null, marker); |
| 114 | + } catch (e) { |
| 115 | + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. |
| 116 | + // Some versions of I.E. have different rules for clearTimeout vs setTimeout |
| 117 | + return cachedClearTimeout.call(this, marker); |
| 118 | + } |
| 119 | + } |
| 120 | +} |
| 121 | +let queue = []; |
| 122 | +let draining = false; |
| 123 | +let currentQueue; |
| 124 | +let queueIndex = -1; |
| 125 | + |
| 126 | +/** |
| 127 | + * |
| 128 | + */ |
| 129 | +function drainQueue() { |
| 130 | + if (draining) { |
| 131 | + return; |
| 132 | + } |
| 133 | + const timeout = runTimeout(cleanUpNextTick); |
| 134 | + draining = true; |
| 135 | + |
| 136 | + let len = queue.length; |
| 137 | + while (len) { |
| 138 | + currentQueue = queue; |
| 139 | + queue = []; |
| 140 | + while (++queueIndex < len) { |
| 141 | + if (currentQueue) { |
| 142 | + currentQueue[queueIndex].run(); |
| 143 | + } |
| 144 | + } |
| 145 | + queueIndex = -1; |
| 146 | + len = queue.length; |
| 147 | + } |
| 148 | + currentQueue = null; |
| 149 | + draining = false; |
| 150 | + runClearTimeout(timeout); |
| 151 | +} |
| 152 | + |
| 153 | +/** |
| 154 | + * |
| 155 | + */ |
| 156 | +function cleanUpNextTick() { |
| 157 | + if (!draining || !currentQueue) { |
| 158 | + return; |
| 159 | + } |
| 160 | + draining = false; |
| 161 | + if (currentQueue.length) { |
| 162 | + queue = currentQueue.concat(queue); |
| 163 | + } else { |
| 164 | + queueIndex = -1; |
| 165 | + } |
| 166 | + if (queue.length) { |
| 167 | + drainQueue(); |
| 168 | + } |
| 169 | +} |
| 170 | + |
| 171 | +/** |
| 172 | + * |
| 173 | + */ |
| 174 | + |
| 175 | +process.nextTick = function (fun) { |
| 176 | + const args = new Array(arguments.length - 1); |
| 177 | + if (arguments.length > 1) { |
| 178 | + for (let i = 1; i < arguments.length; i++) { |
| 179 | + args[i - 1] = arguments[i]; |
| 180 | + } |
| 181 | + } |
| 182 | + queue.push(new Item(fun, args)); |
| 183 | + if (queue.length === 1 && !draining) { |
| 184 | + runTimeout(drainQueue); |
| 185 | + } |
| 186 | +}; |
| 187 | + |
| 188 | +// v8 likes predictible objects |
| 189 | +/** |
| 190 | + * @param {Function} fun - return a item |
| 191 | + * @param {Array} array - return a array |
| 192 | + */ |
| 193 | +function Item(fun, array) { |
| 194 | + this.fun = fun; |
| 195 | + this.array = array; |
| 196 | +} |
| 197 | +Item.prototype.run = function () { |
| 198 | + this.fun.apply(null, this.array); |
| 199 | +}; |
| 200 | +process.title = 'browser'; |
| 201 | +process.browser = true; |
| 202 | +process.env = {}; |
| 203 | +process.argv = []; |
| 204 | +process.version = ''; // empty string to avoid regexp issues |
| 205 | +process.versions = { node: '18.3.1' }; // fake version |
| 206 | + |
| 207 | +/** |
| 208 | + * |
| 209 | + */ |
| 210 | +function noop() {} |
| 211 | + |
| 212 | +process.on = noop; |
| 213 | +process.addListener = noop; |
| 214 | +process.once = noop; |
| 215 | +process.off = noop; |
| 216 | +process.removeListener = noop; |
| 217 | +process.removeAllListeners = noop; |
| 218 | +process.emit = noop; |
| 219 | +process.prependListener = noop; |
| 220 | +process.prependOnceListener = noop; |
| 221 | + |
| 222 | +process.listeners = function () { |
| 223 | + return []; |
| 224 | +}; |
| 225 | + |
| 226 | +process.binding = function () { |
| 227 | + throw new Error('process.binding is not supported'); |
| 228 | +}; |
| 229 | + |
| 230 | +process.cwd = function () { |
| 231 | + return '/'; |
| 232 | +}; |
| 233 | +process.chdir = function () { |
| 234 | + throw new Error('process.chdir is not supported'); |
| 235 | +}; |
| 236 | +process.umask = function () { |
| 237 | + return 0; |
| 238 | +}; |
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