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46
node_modules/msgpack-lite/lib/bufferish-buffer.js
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46
node_modules/msgpack-lite/lib/bufferish-buffer.js
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// bufferish-buffer.js
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var Bufferish = require("./bufferish");
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var Buffer = Bufferish.global;
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var exports = module.exports = Bufferish.hasBuffer ? alloc(0) : [];
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exports.alloc = Bufferish.hasBuffer && Buffer.alloc || alloc;
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exports.concat = Bufferish.concat;
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exports.from = from;
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/**
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* @param size {Number}
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* @returns {Buffer|Uint8Array|Array}
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*/
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function alloc(size) {
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return new Buffer(size);
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}
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/**
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* @param value {Array|ArrayBuffer|Buffer|String}
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* @returns {Buffer}
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*/
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function from(value) {
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if (!Bufferish.isBuffer(value) && Bufferish.isView(value)) {
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// TypedArray to Uint8Array
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value = Bufferish.Uint8Array.from(value);
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} else if (Bufferish.isArrayBuffer(value)) {
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// ArrayBuffer to Uint8Array
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value = new Uint8Array(value);
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} else if (typeof value === "string") {
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// String to Buffer
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return Bufferish.from.call(exports, value);
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} else if (typeof value === "number") {
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throw new TypeError('"value" argument must not be a number');
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}
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// Array-like to Buffer
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if (Buffer.from && Buffer.from.length !== 1) {
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return Buffer.from(value); // node v6+
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} else {
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return new Buffer(value); // node v4
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}
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}
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