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package scalam.m.ast
trait Expression extends Mable with Root{
def m: String = this match {
case IntLiteral(x) => x.toString
case DoubleLiteral(x) => x.toString
case StringLiteral(x) => "'" + x + "'"
case SliceLiteral => ":"
case ArrayLiteral(elements @ _*) => elements.map(_.m).mkString("[", ",", "]")
case MatrixLiteral(rows @ _*) => rows.map(_.m).mkString("[", ";", "]")
case Variable(id) => id.m
case IndexMatrix(id, indices @ _*) => id.m + indices.map(_.m).mkString("(", ",", ")")
case IndexStructure(id, indices @ _*) => id.m + indices.map(_.m).mkString("{", ",", "}")
case Function(id, params @ _*) => id.m + params.map(_.m).mkString("(", ",", ")")
case _ => throw new IllegalArgumentException("unkown expression: " + this)
}
}
case class IntLiteral(x: Int) extends Expression
case class DoubleLiteral(x: Double) extends Expression
case class StringLiteral(x: String) extends Expression
case object SliceLiteral extends Expression
case class ArrayLiteral(elements: Expression*) extends Expression
case class MatrixLiteral(rows: Expression*) extends Expression
case class Variable(id: Identifier) extends Expression
case class IndexMatrix(id: Identifier, indices: Expression*) extends Expression
case class IndexStructure(id: Identifier, indices: Expression*) extends Expression
case class Function(function: Identifier, params: Expression*) extends Expression
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