codegen/op-codegen/src/main/kotlin/org/nd4j/codegen/impl/java/JavaConstraintCodeGenerator.kt
/*
* ******************************************************************************
* *
* *
* * This program and the accompanying materials are made available under the
* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * 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.
* *
* * SPDX-License-Identifier: Apache-2.0
* *****************************************************************************
*/
package org.nd4j.codegen.impl.java
import org.nd4j.codegen.api.*
import org.nd4j.codegen.api.generator.ConstraintCodeGenerator
class JavaConstraintCodeGenerator: ConstraintCodeGenerator {
override fun generateExpression(expression: Expression): String = when(expression) {
is BooleanExpression -> {
val left = generateReference(expression.left)
val right = generateReference(expression.right)
when(expression.op){
BooleanOperation.EQ -> "$left == $right"
BooleanOperation.NEQ -> "$left != $right"
BooleanOperation.LT -> "$left < $right"
BooleanOperation.LTE -> "$left <= $right"
BooleanOperation.GT -> "$left > $right"
BooleanOperation.GTE -> "$left >= $right"
BooleanOperation.AND -> "$left && $right"
BooleanOperation.OR -> "$left || $right"
}
}
is SameTypeExpression -> "isSameType(${expression.inputs.joinToString(", "){ it.name }})"
is SameShapeExpression -> "isSameShape(${expression.inputs.joinToString(", "){ it.name }})"
is BroadcastableShapesExpression -> "isBroadcastableShapes(${expression.inputs.joinToString(", "){ it.name }})"
}
private fun generateReference(reference: Reference): String = when(reference){
is NumberReference<*> -> reference.value.toString()
is BooleanReference -> reference.value.toString()
is InputShapeReference -> "${reference.input.name}.sizeAt(${reference.idx})"
is InputRankReference -> "${reference.input.name}.rank()"
is Arg -> reference.name
is Expression -> "(${generateExpression(reference)})"
}
}