119 lines
2.5 KiB
JavaScript
119 lines
2.5 KiB
JavaScript
export var Buffer = require("buffer-browserify").Buffer;
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var bufferFill = require("buffer-fill");
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export const process = {
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cwd: () => "",
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env: {},
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};
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function allocUnsafe(size) {
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if (typeof size !== "number") {
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throw new TypeError('"size" argument must be a number');
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}
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if (size < 0) {
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throw new RangeError('"size" argument must not be negative');
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}
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return new Uint32Array(size);
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}
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var toString = Object.prototype.toString;
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function isArrayBuffer(input) {
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return toString.call(input).slice(8, -1) === "ArrayBuffer";
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}
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function fromArrayBuffer(obj, byteOffset, length) {
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byteOffset >>>= 0;
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var maxLength = obj.byteLength - byteOffset;
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if (maxLength < 0) {
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throw new RangeError("'offset' is out of bounds");
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}
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if (length === undefined) {
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length = maxLength;
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} else {
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length >>>= 0;
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if (length > maxLength) {
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throw new RangeError("'length' is out of bounds");
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}
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}
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return new Buffer(new Uint8Array(obj.slice(byteOffset, byteOffset + length)));
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}
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function fromString(string, encoding) {
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if (typeof encoding !== "string" || encoding === "") {
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encoding = "utf8";
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}
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if (!Buffer.isEncoding(encoding)) {
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throw new TypeError('"encoding" must be a valid string encoding');
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}
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return new Buffer(string, encoding);
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}
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function bufferFrom(value, encodingOrOffset, length) {
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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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if (isArrayBuffer(value)) {
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return fromArrayBuffer(value, encodingOrOffset, length);
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}
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if (typeof value === "string") {
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return fromString(value, encodingOrOffset);
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}
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return new Buffer(value);
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}
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Buffer.alloc = function alloc(size, fill, encoding) {
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if (typeof size !== "number") {
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throw new TypeError('"size" argument must be a number');
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}
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if (size < 0) {
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throw new RangeError('"size" argument must not be negative');
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}
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var buffer = allocUnsafe(size);
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if (size === 0) {
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return buffer;
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}
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if (fill === undefined) {
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return bufferFill(buffer, 0);
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}
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if (typeof encoding !== "string") {
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encoding = undefined;
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}
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return bufferFill(buffer, fill, encoding);
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};
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Buffer.allocUnsafe = allocUnsafe;
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Buffer.from = bufferFrom;
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Object.defineProperty(Buffer.prototype, "buffer", {
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get: function myProperty() {
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return this;
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},
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});
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Object.defineProperty(Buffer.prototype, "byteOffset", {
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get: function myProperty() {
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return this.offset;
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},
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});
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Object.defineProperty(Buffer.prototype, "byteLength", {
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get: function myProperty() {
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return this.length;
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},
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});
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