wyal.lang

Class WyalFile.Type.Union

java.lang.Object

wybs.lang.SyntacticElement.Impl

wybs.util.AbstractSyntacticItem

wyal.lang.WyalFile.Type.UnionOrIntersection

wyal.lang.WyalFile.Type.Union

All Implemented Interfaces:

Cloneable, Comparable<wybs.lang.SyntacticItem>, WyalFile.Type, wybs.lang.SyntacticElement, wybs.lang.SyntacticItem

Enclosing interface:

WyalFile.Type

public static class WyalFile.Type.Union
extends WyalFile.Type.UnionOrIntersection

Represents a union type, which is of the form:

 UnionType ::= IntersectionType ('|' IntersectionType)*
 

Union types are used to compose types together. For example, the type int|null represents the type which is either an int or null.

Nested Class Summary

Nested classes/interfaces inherited from interface wyal.lang.WyalFile.Type

WyalFile.Type.Any, WyalFile.Type.Array, WyalFile.Type.Atom, WyalFile.Type.Bool, WyalFile.Type.Byte, WyalFile.Type.Function, WyalFile.Type.FunctionOrMacroOrInvariant, WyalFile.Type.FunctionOrMethodOrProperty, WyalFile.Type.Int, WyalFile.Type.Intersection, WyalFile.Type.Invariant, WyalFile.Type.Method, WyalFile.Type.Negation, WyalFile.Type.Nominal, WyalFile.Type.Null, WyalFile.Type.Primitive, WyalFile.Type.Property, WyalFile.Type.Record, WyalFile.Type.Reference, WyalFile.Type.Union, WyalFile.Type.UnionOrIntersection, WyalFile.Type.Void

Nested classes/interfaces inherited from interface wybs.lang.SyntacticItem

wybs.lang.SyntacticItem.Data, wybs.lang.SyntacticItem.Operands, wybs.lang.SyntacticItem.Schema

Nested classes/interfaces inherited from interface wybs.lang.SyntacticElement

wybs.lang.SyntacticElement.Impl

Field Summary

Fields inherited from class wybs.util.AbstractSyntacticItem

data, opcode, operands

Fields inherited from interface wyal.lang.WyalFile.Type

Any, Bool, Int, Null, Void

Constructor Summary

Constructors

Constructor and Description
Union(WyalFile.Type[] types)

Method Summary

Modifier and Type	Method and Description
WyalFile.Type.Union	clone(wybs.lang.SyntacticItem[] operands)
String	toString()

Methods inherited from class wyal.lang.WyalFile.Type.UnionOrIntersection

get, getAll

Methods inherited from class wybs.util.AbstractSyntacticItem

allocate, compareTo, equals, getAncestor, getData, getHeap, getIndex, getOpcode, getParent, hashCode, match, setOpcode, setOperand, size, toArray

Methods inherited from class wybs.lang.SyntacticElement.Impl

attribute, attributes

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface wybs.lang.SyntacticItem

allocate, getData, getHeap, getIndex, getOpcode, getParent, setOpcode, setOperand, size

Methods inherited from interface wybs.lang.SyntacticElement

attribute, attributes

Methods inherited from interface java.lang.Comparable

compareTo

Constructor Detail

Union

public Union(WyalFile.Type[] types)

Method Detail

clone

public WyalFile.Type.Union clone(wybs.lang.SyntacticItem[] operands)

toString

public String toString()

Overrides:

toString in class wybs.util.AbstractSyntacticItem