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2025-02-12 ea42ff3ebee1eeb3fb29423aa848a249441db81c

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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 { Pack, util } from '@tensorflow/tfjs-core';
import { concat } from './Concat';
import { expandDims } from './ExpandDims';
export function pack(args) {
    const { inputs, backend, attrs } = args;
    const { axis } = attrs;
    if (inputs.length === 1) {
        return expandDims({ inputs: { input: inputs[0] }, backend, attrs: { dim: axis } });
    }
    const shape = inputs[0].shape;
    const dtype = inputs[0].dtype;
    inputs.forEach(t => {
        util.assertShapesMatch(shape, t.shape, 'All tensors passed to stack must have matching shapes');
        util.assert(dtype === t.dtype, () => 'All tensors passed to stack must have matching dtypes');
    });
    const intermediateTensorInfos = [];
    const expandedTensors = inputs.map(t => {
        const expandedT = expandDims({ inputs: { input: t }, backend, attrs: { dim: axis } });
        intermediateTensorInfos.push(expandedT);
        return expandedT;
    });
    const result = concat({ inputs: expandedTensors, backend, attrs: { axis } });
    intermediateTensorInfos.forEach(t => backend.disposeIntermediateTensorInfo(t));
    return result;
}
export const packConfig = {
    kernelName: Pack,
    backendName: 'webgl',
    kernelFunc: pack
};
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