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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package ml.dmlc.mxnet
/**
* Shape of [[NDArray]] or other data
*/
class Shape(dims: Traversable[Int]) extends Serializable {
private val shape = dims.toVector
def this(dims: Int*) = {
this(dims.toVector)
}
def apply(dim: Int): Int = shape(dim)
def size: Int = shape.size
def length: Int = shape.length
def drop(dim: Int): Shape = new Shape(shape.drop(dim))
def slice(from: Int, end: Int): Shape = new Shape(shape.slice(from, end))
def product: Int = shape.product
def head: Int = shape.head
def ++(other: Shape): Shape = new Shape(shape ++ other.shape)
def toArray: Array[Int] = shape.toArray
def toVector: Vector[Int] = shape
override def toString(): String = s"(${shape.mkString(",")})"
override def equals(o: Any): Boolean = o match {
case that: Shape =>
that != null && that.shape.sameElements(shape)
case _ => false
}
override def hashCode(): Int = {
shape.hashCode()
}
}
object Shape {
def apply(dims: Int *): Shape = new Shape(dims: _*)
def apply(dims: Traversable[Int]): Shape = new Shape(dims)
}