@hoff97/tensor-js/dist/lib/onnx/nodes/unsqueeze.js

PyTorch like deep learning inferrence library

var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
import { OnnxNode } from '../node';
export class UnsqueezeNode extends OnnxNode {
    constructor(attributes, inputs, outputs, constants, onnxVersion, mode) {
        super(attributes, inputs, outputs, constants, onnxVersion, mode);
        if (onnxVersion < 13) {
            this.axes = this.getAttributeInts('axes');
        }
    }
    forward(inputs) {
        return __awaiter(this, void 0, void 0, function* () {
            const x = inputs[0];
            if (this.onnxVersion < 13 && this.axes !== undefined) {
                const currShape = x.getShape();
                const newShape = [];
                let axIx = 0;
                for (let i = 0; i < currShape.length; i++) {
                    if (axIx < this.axes.length && this.axes[axIx] === i) {
                        newShape.push(1);
                        axIx++;
                    }
                    newShape.push(currShape[i]);
                }
                if (this.axes[this.axes.length - 1] === currShape.length) {
                    newShape.push(1);
                }
                return [x.reshape(newShape)];
            }
            throw new Error(`Unsqueeze with onnx version ${this.onnxVersion} not yet implemented`);
        });
    }
    getType() {
        return 'Unsqueeze';
    }
    delete() { }
}
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