orc.ast.simple.type
Class Top

java.lang.Object
  orc.ast.simple.type.Type
      orc.ast.simple.type.Top

public class Top
extends Type

The type 'Top', supertype of all other types.

Author:

dkitchin

Field Summary

Fields inherited from class orc.ast.simple.type.Type

BOT, TOP

Constructor Summary

Top()

Method Summary

Type	convert(Env<TypeVariable> env) Convert this syntactic type into an actual type, given an appropriate type context
Type	subst(Type T, FreeTypeVariable X) Performs the substitution [T/X], replacing occurrences of the free type variable X with the type T (which could be any type, including another variable).
java.lang.String	toString()

Methods inherited from class orc.ast.simple.type.Type

convertAll, subMap, substAll, substMaybe, subvar

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Top

public Top()

Method Detail

convert

public Type convert(Env<TypeVariable> env)

Description copied from class: Type

Convert this syntactic type into an actual type, given an appropriate type context

Specified by:

convert in class Type

Parameters:

env - The type environment, used in content addressable mode to find the appropriate deBruijn index of a type variable.

Returns:

A new node.

subst

public Type subst(Type T,
                  FreeTypeVariable X)

Description copied from class: Type

Performs the substitution [T/X], replacing occurrences of the free type variable X with the type T (which could be any type, including another variable).

Specified by:

subst in class Type

Parameters:

T - The replacing type

X - The free type variable whose occurrences will be replaced

Returns:

A new copy of the type with the substitution performed

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object