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// SPDX-License-Identifier: Apache-2.0
package firrtl
import firrtl.ir._
// TODO: Implement remaining mappers and recursive mappers
object Mappers {
// ********** Port Mappers **********
private trait PortMagnet {
def map(p: Port): Port
}
private object PortMagnet {
implicit def forType(f: Type => Type): PortMagnet = new PortMagnet {
override def map(port: Port): Port = port.mapType(f)
}
implicit def forString(f: String => String): PortMagnet = new PortMagnet {
override def map(port: Port): Port = port.mapString(f)
}
}
implicit class PortMap(val _port: Port) extends AnyVal {
def map[T](f: T => T)(implicit magnet: (T => T) => PortMagnet): Port = magnet(f).map(_port)
}
// ********** Stmt Mappers **********
private trait StmtMagnet {
def map(stmt: Statement): Statement
}
private object StmtMagnet {
implicit def forStmt(f: Statement => Statement): StmtMagnet = new StmtMagnet {
override def map(stmt: Statement): Statement = stmt.mapStmt(f)
}
implicit def forExp(f: Expression => Expression): StmtMagnet = new StmtMagnet {
override def map(stmt: Statement): Statement = stmt.mapExpr(f)
}
implicit def forType(f: Type => Type): StmtMagnet = new StmtMagnet {
override def map(stmt: Statement): Statement = stmt.mapType(f)
}
implicit def forString(f: String => String): StmtMagnet = new StmtMagnet {
override def map(stmt: Statement): Statement = stmt.mapString(f)
}
implicit def forInfo(f: Info => Info): StmtMagnet = new StmtMagnet {
override def map(stmt: Statement): Statement = stmt.mapInfo(f)
}
}
implicit class StmtMap(val _stmt: Statement) extends AnyVal {
// Using implicit types to allow overloading of function type to map, see StmtMagnet above
def map[T](f: T => T)(implicit magnet: (T => T) => StmtMagnet): Statement = magnet(f).map(_stmt)
}
// ********** Expression Mappers **********
private trait ExprMagnet {
def map(expr: Expression): Expression
}
private object ExprMagnet {
implicit def forExpr(f: Expression => Expression): ExprMagnet = new ExprMagnet {
override def map(expr: Expression): Expression = expr.mapExpr(f)
}
implicit def forType(f: Type => Type): ExprMagnet = new ExprMagnet {
override def map(expr: Expression): Expression = expr.mapType(f)
}
implicit def forWidth(f: Width => Width): ExprMagnet = new ExprMagnet {
override def map(expr: Expression): Expression = expr.mapWidth(f)
}
}
implicit class ExprMap(val _expr: Expression) extends AnyVal {
def map[T](f: T => T)(implicit magnet: (T => T) => ExprMagnet): Expression = magnet(f).map(_expr)
}
// ********** Type Mappers **********
private trait TypeMagnet {
def map(tpe: Type): Type
}
private object TypeMagnet {
implicit def forType(f: Type => Type): TypeMagnet = new TypeMagnet {
override def map(tpe: Type): Type = tpe.mapType(f)
}
implicit def forWidth(f: Width => Width): TypeMagnet = new TypeMagnet {
override def map(tpe: Type): Type = tpe.mapWidth(f)
}
}
implicit class TypeMap(val _tpe: Type) extends AnyVal {
def map[T](f: T => T)(implicit magnet: (T => T) => TypeMagnet): Type = magnet(f).map(_tpe)
}
// ********** Width Mappers **********
private trait WidthMagnet {
def map(width: Width): Width
}
private object WidthMagnet {
implicit def forWidth(f: Width => Width): WidthMagnet = new WidthMagnet {
override def map(width: Width): Width = width match {
case mapable: HasMapWidth => mapable.mapWidth(f) // WIR
case other => other // Standard IR nodes
}
}
}
implicit class WidthMap(val _width: Width) extends AnyVal {
def map[T](f: T => T)(implicit magnet: (T => T) => WidthMagnet): Width = magnet(f).map(_width)
}
// ********** Module Mappers **********
private trait ModuleMagnet {
def map(module: DefModule): DefModule
}
private object ModuleMagnet {
implicit def forStmt(f: Statement => Statement): ModuleMagnet = new ModuleMagnet {
override def map(module: DefModule): DefModule = module.mapStmt(f)
}
implicit def forPorts(f: Port => Port): ModuleMagnet = new ModuleMagnet {
override def map(module: DefModule): DefModule = module.mapPort(f)
}
implicit def forString(f: String => String): ModuleMagnet = new ModuleMagnet {
override def map(module: DefModule): DefModule = module.mapString(f)
}
implicit def forInfo(f: Info => Info): ModuleMagnet = new ModuleMagnet {
override def map(module: DefModule): DefModule = module.mapInfo(f)
}
}
implicit class ModuleMap(val _module: DefModule) extends AnyVal {
def map[T](f: T => T)(implicit magnet: (T => T) => ModuleMagnet): DefModule = magnet(f).map(_module)
}
// ********** Circuit Mappers **********
private trait CircuitMagnet {
def map(module: Circuit): Circuit
}
private object CircuitMagnet {
implicit def forModules(f: DefModule => DefModule): CircuitMagnet = new CircuitMagnet {
override def map(circuit: Circuit): Circuit = circuit.mapModule(f)
}
implicit def forString(f: String => String): CircuitMagnet = new CircuitMagnet {
override def map(circuit: Circuit): Circuit = circuit.mapString(f)
}
implicit def forInfo(f: Info => Info): CircuitMagnet = new CircuitMagnet {
override def map(circuit: Circuit): Circuit = circuit.mapInfo(f)
}
}
implicit class CircuitMap(val _circuit: Circuit) extends AnyVal {
def map[T](f: T => T)(implicit magnet: (T => T) => CircuitMagnet): Circuit = magnet(f).map(_circuit)
}
}
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