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// See LICENSE for license details.
package firrtl.passes
package memlib
import net.jcazevedo.moultingyaml._
import java.io.{File, CharArrayWriter, PrintWriter}
object CustomYAMLProtocol extends DefaultYamlProtocol {
// bottom depends on top
implicit val _pin = yamlFormat1(Pin)
implicit val _source = yamlFormat2(Source)
implicit val _top = yamlFormat1(Top)
implicit val _configs = yamlFormat3(Config)
}
case class Pin(name: String)
case class Source(name: String, module: String)
case class Top(name: String)
case class Config(pin: Pin, source: Source, top: Top)
class YamlFileReader(file: String) {
import CustomYAMLProtocol._
def parse[A](implicit reader: YamlReader[A]) : Seq[A] = {
if (new File(file).exists) {
val yamlString = scala.io.Source.fromFile(file).getLines.mkString("\n")
yamlString.parseYamls flatMap (x =>
try Some(reader read x)
catch { case e: Exception => None }
)
}
else error("Yaml file doesn't exist!")
}
}
class YamlFileWriter(file: String) {
import CustomYAMLProtocol._
val outputBuffer = new CharArrayWriter
val separator = "--- \n"
def append(in: YamlValue) {
outputBuffer append s"$separator${in.prettyPrint}"
}
def dump() {
val outputFile = new PrintWriter(file)
outputFile write outputBuffer.toString
outputFile.close()
}
}
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