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package dotty.tools.dotc.core
import Names.Name
import Contexts.Context
import Types.{Type, TypeBounds}
/** A common super trait of Symbol and LambdaParam.
* Used to capture the attributes of type parameters which can be implemented as either.
*/
trait TypeParamInfo {
/** Is this the info of a type parameter? Might be wrong for symbols */
def isTypeParam(implicit ctx: Context): Boolean
/** The name of the type parameter */
def paramName(implicit ctx: Context): Name
/** The info of the type parameter */
def paramBounds(implicit ctx: Context): TypeBounds
/** The info of the type parameter as seen from a prefix type.
* This can be different from `memberInfo` if the binding
* is a type symbol of a class.
*/
def paramBoundsAsSeenFrom(pre: Type)(implicit ctx: Context): TypeBounds
/** The variance of the type parameter */
def paramVariance(implicit ctx: Context): Int
}
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