scala3-compiler-bootstrapped/dotty.tools.dotc.core/ParamInfo

ParamInfo

trait ParamInfo

A common super trait of Symbol and LambdaParam. Used to capture the attributes of type parameters which can be implemented as either.

Companion:
object
class Object
trait Matchable
class Any
class Symbol
object NoSymbol.type

Type members

Types

type ThisName <: Name

Value members

Abstract methods

def isTypeParam(using Context): Boolean

Is this the info of a type parameter? Will return false for symbols that are not type parameters.

Is this the info of a type parameter? Will return false for symbols that are not type parameters.

def paramInfo(using Context): Type

The info of the type parameter

The info of the type parameter

def paramInfoAsSeenFrom(prefix: Type)(using Context): Type

The info of the type parameter as seen from a prefix type. For type parameter symbols, this is the memberInfo as seen from prefix. For type lambda parameters, it's the same as paramInfos as asSeenFrom has already been applied to the whole type lambda.

The info of the type parameter as seen from a prefix type. For type parameter symbols, this is the memberInfo as seen from prefix. For type lambda parameters, it's the same as paramInfos as asSeenFrom has already been applied to the whole type lambda.

def paramInfoOrCompleter(using Context): Type

The parameter bounds, or the completer if the type parameter is an as-yet uncompleted symbol.

The parameter bounds, or the completer if the type parameter is an as-yet uncompleted symbol.

def paramName(using Context): ThisName

The name of the type parameter

The name of the type parameter

def paramRef(using Context): Type

A type that refers to the parameter

A type that refers to the parameter

def paramVariance(using Context): Variance

The variance of the type parameter

The variance of the type parameter

Concrete methods

final def paramVarianceSign(using Context): Int

The variance of the type parameter, as a number -1, 0, +1. Bivariant is mapped to 1, i.e. it is treated like Covariant.

The variance of the type parameter, as a number -1, 0, +1. Bivariant is mapped to 1, i.e. it is treated like Covariant.