geotrellis.macros.NoDataMacros.scala Maven / Gradle / Ivy

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geographic data processing library for high performance applications

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/*
 * Copyright 2016 Azavea
 *
 * 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.
 */

package geotrellis.macros

import scala.reflect.macros.whitebox.Context

object NoDataMacros {
  def isNoDataByte_impl(ct: Context)(b: ct.Expr[Byte]): ct.Expr[Boolean] = {
    import ct.universe._
    ct.Expr(q"""$b == Byte.MinValue""")
  }

  def isNoDataShort_impl(ct: Context)(s: ct.Expr[Short]): ct.Expr[Boolean] = {
    import ct.universe._
    ct.Expr(q"""$s == Short.MinValue""")
  }

  def isNoDataInt_impl(ct: Context)(i: ct.Expr[Int]): ct.Expr[Boolean] = {
    import ct.universe._
    ct.Expr(q"""$i == Int.MinValue""")
  }

  def isNoDataFloat_impl(ct: Context)(f: ct.Expr[Float]): ct.Expr[Boolean] = {
    import ct.universe._
    ct.Expr(q"""java.lang.Float.isNaN($f)""")
  }

  def isNoDataDouble_impl(ct: Context)(d: ct.Expr[Double]): ct.Expr[Boolean] = {
    import ct.universe._
    ct.Expr(q"""java.lang.Double.isNaN($d)""")
  }

  def isDataByte_impl(ct: Context)(b: ct.Expr[Byte]): ct.Expr[Boolean] = {
    import ct.universe._
    ct.Expr(q"""$b != Byte.MinValue""")
  }

  def isDataShort_impl(ct: Context)(s: ct.Expr[Short]): ct.Expr[Boolean] = {
    import ct.universe._
    ct.Expr(q"""$s != Short.MinValue""")
  }

  def isDataInt_impl(ct: Context)(i: ct.Expr[Int]): ct.Expr[Boolean] = {
    import ct.universe._
    ct.Expr(q"""$i != Int.MinValue""")
  }

  def isDataFloat_impl(ct: Context)(f: ct.Expr[Float]): ct.Expr[Boolean] = {
    import ct.universe._
    ct.Expr(q"""!java.lang.Float.isNaN($f)""")
  }

  def isDataDouble_impl(ct: Context)(d: ct.Expr[Double]): ct.Expr[Boolean] = {
    import ct.universe._
    ct.Expr(q"""!java.lang.Double.isNaN($d)""")
  }

}