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// Private implicit classes and other utility functions for debugging
package firrtl
import java.io.PrintWriter
import Utils._
private object DebugUtils {
implicit class DebugASTUtils(ast: AST) {
// Is this actually any use?
def preOrderTraversal(f: AST => Unit): Unit = {
f(ast)
ast match {
case a: Block => a.stmts.foreach(_.preOrderTraversal(f))
case a: Assert => a.pred.preOrderTraversal(f)
case a: When => {
a.pred.preOrderTraversal(f)
a.conseq.preOrderTraversal(f)
a.alt.preOrderTraversal(f)
}
case a: BulkConnect => {
a.lhs.preOrderTraversal(f)
a.rhs.preOrderTraversal(f)
}
case a: Connect => {
a.lhs.preOrderTraversal(f)
a.rhs.preOrderTraversal(f)
}
case a: OnReset => {
a.lhs.preOrderTraversal(f)
a.rhs.preOrderTraversal(f)
}
case a: DefAccessor => {
a.dir.preOrderTraversal(f)
a.source.preOrderTraversal(f)
a.index.preOrderTraversal(f)
}
case a: DefPoison => a.tpe.preOrderTraversal(f)
case a: DefNode => a.value.preOrderTraversal(f)
case a: DefInst => a.module.preOrderTraversal(f)
case a: DefMemory => {
a.tpe.preOrderTraversal(f)
a.clock.preOrderTraversal(f)
}
case a: DefReg => {
a.tpe.preOrderTraversal(f)
a.clock.preOrderTraversal(f)
a.reset.preOrderTraversal(f)
}
case a: DefWire => a.tpe.preOrderTraversal(f)
case a: Field => {
a.dir.preOrderTraversal(f)
a.tpe.preOrderTraversal(f)
}
case a: VectorType => a.tpe.preOrderTraversal(f)
case a: BundleType => a.fields.foreach(_.preOrderTraversal(f))
case a: Port => {
a.dir.preOrderTraversal(f)
a.tpe.preOrderTraversal(f)
}
case a: Module => {
a.ports.foreach(_.preOrderTraversal(f))
a.stmt.preOrderTraversal(f)
}
case a: Circuit => a.modules.foreach(_.preOrderTraversal(f))
//case _ => throw new Exception(s"Unsupported FIRRTL node ${ast.getClass.getSimpleName}!")
case _ =>
}
}
}
/** Private class for recording and organizing debug information */
class Logger private (
writer: PrintWriter,
printMode: Symbol,
printVars: List[Symbol]){
// Legal printModes: 'none, 'error, 'warn, 'info, 'debug, 'trace
require(List('none, 'error, 'warn, 'info, 'debug, 'trace) contains printMode)
val errorEnable = List('error, 'warn, 'info, 'debug, 'trace) contains printMode
val warnEnable = List('warn, 'info, 'debug, 'trace) contains printMode
val infoEnable = List('info, 'debug, 'trace) contains printMode
val debugEnable = List('debug, 'trace) contains printMode
val traceEnable = List('trace) contains printMode
val circuitEnable = printVars contains 'circuit
val debugFlags = printVars.map(_ -> true).toMap.withDefaultValue(false)
def println(message: => String){
writer.println(message)
}
def error(message: => String){
if (errorEnable) writer.println(message.split("\n").map("[error] " + _).mkString("\n"))
}
def warn(message: => String){
if (warnEnable) writer.println(message.split("\n").map("[warn] " + _).mkString("\n"))
}
def info(message: => String){
if (infoEnable) writer.println(message.split("\n").map("[info] " + _).mkString("\n"))
}
def debug(message: => String){
if (debugEnable) writer.println(message.split("\n").map("[debug] " + _).mkString("\n"))
}
def trace(message: => String){
if (traceEnable) writer.println(message.split("\n").map("[trace] " + _).mkString("\n"))
}
def printlnDebug(circuit: Circuit){
if (circuitEnable) this.println(circuit.serialize(debugFlags))
}
// Used if not autoflushing
def flush() = writer.flush()
}
/** Factory object for logger
*
* Logger records and organizes debug information
*/
object Logger
{
def apply(writer: PrintWriter): Logger =
new Logger(writer, 'warn, List())
def apply(writer: PrintWriter, printMode: Symbol): Logger =
new Logger(writer, printMode, List())
def apply(writer: PrintWriter, printMode: Symbol, printVars: List[Symbol]): Logger =
new Logger(writer, printMode, printVars)
def apply(): Logger = new Logger(null, 'none, List())
}
}
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