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tile.ts
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tile.ts
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/**
* @license
* Copyright 2020 Google LLC. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =============================================================================
*/
import {ENGINE} from '../engine';
import {Tile, TileAttrs, TileInputs} from '../kernel_names';
import {NamedAttrMap} from '../kernel_registry';
import {Tensor} from '../tensor';
import {NamedTensorMap} from '../tensor_types';
import {convertToTensor} from '../tensor_util_env';
import {TensorLike} from '../types';
import * as util from '../util';
import {op} from './operation';
/**
* Construct a tensor by repeating it the number of times given by reps.
*
* This operation creates a new tensor by replicating `input` `reps`
* times. The output tensor's `i`th dimension has `input.shape[i] *
* reps[i]` elements, and the values of `input` are replicated
* `reps[i]` times along the `i`th dimension. For example, tiling
* `[a, b, c, d]` by `[2]` produces `[a, b, c, d, a, b, c, d]`.
*
* ```js
* const a = tf.tensor1d([1, 2]);
*
* a.tile([2]).print(); // or tf.tile(a, [2])
* ```
*
* ```js
* const a = tf.tensor2d([1, 2, 3, 4], [2, 2]);
*
* a.tile([1, 2]).print(); // or tf.tile(a, [1,2])
* ```
* @param x The tensor to tile.
* @param reps Determines the number of replications per dimension.
*
* @doc {heading: 'Tensors', subheading: 'Slicing and Joining'}
*/
function tile_<T extends Tensor>(x: T|TensorLike, reps: number[]): T {
const $x = convertToTensor(x, 'x', 'tile', 'string_or_numeric');
util.assert(
$x.rank === reps.length,
() => `Error in transpose: rank of input ${$x.rank} ` +
`must match length of reps ${reps}.`);
const inputs: TileInputs = {x: $x};
const attrs: TileAttrs = {reps};
return ENGINE.runKernel(
Tile, inputs as unknown as NamedTensorMap,
attrs as unknown as NamedAttrMap);
}
export const tile = /* @__PURE__ */ op({tile_});