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LibJS: Add %TypedArray%.prototype.reverse
This fixes 13 test262 cases.
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const TYPED_ARRAYS = [
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Uint8Array,
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Uint8ClampedArray,
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Uint16Array,
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Uint32Array,
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Int8Array,
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Int16Array,
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Int32Array,
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Float32Array,
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Float64Array,
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];
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const BIGINT_TYPED_ARRAYS = [BigUint64Array, BigInt64Array];
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test("length is 0", () => {
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TYPED_ARRAYS.forEach(T => {
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expect(T.prototype.reverse).toHaveLength(0);
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});
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BIGINT_TYPED_ARRAYS.forEach(T => {
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expect(T.prototype.reverse).toHaveLength(0);
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});
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});
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describe("basic functionality", () => {
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test("Odd length array", () => {
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TYPED_ARRAYS.forEach(T => {
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const array = new T([1, 2, 3]);
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expect(array.reverse()).toEqual([3, 2, 1]);
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expect(array).toEqual([3, 2, 1]);
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});
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BIGINT_TYPED_ARRAYS.forEach(T => {
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const array = new T([1n, 2n, 3n]);
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expect(array.reverse()).toEqual([3n, 2n, 1n]);
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expect(array).toEqual([3n, 2n, 1n]);
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});
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});
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test("Even length array", () => {
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TYPED_ARRAYS.forEach(T => {
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const array = new T([1, 2]);
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expect(array.reverse()).toEqual([2, 1]);
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expect(array).toEqual([2, 1]);
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});
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BIGINT_TYPED_ARRAYS.forEach(T => {
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const array = new T([1n, 2n]);
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expect(array.reverse()).toEqual([2n, 1n]);
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expect(array).toEqual([2n, 1n]);
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});
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});
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test("Empty array", () => {
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TYPED_ARRAYS.forEach(T => {
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const array = new T([]);
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expect(array.reverse()).toEqual([]);
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expect(array).toEqual([]);
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});
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BIGINT_TYPED_ARRAYS.forEach(T => {
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const array = new T([]);
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expect(array.reverse()).toEqual([]);
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expect(array).toEqual([]);
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});
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});
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});
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