wyal.lang

Class WyalFile.Type.Intersection

java.lang.Object

wybs.lang.SyntacticElement.Impl

wyal.heap.AbstractSyntacticItem

wyal.lang.WyalFile.Type.UnionOrIntersection

wyal.lang.WyalFile.Type.Intersection

All Implemented Interfaces:

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

Enclosing interface:

WyalFile.Type

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

Represents an intersection type, which is of the form:

 IntersectionType ::= BaseType ('&' BaseType)*
 

Intersection types are used to unify types together. For example, the type {int x, int y}&MyType represents the type which is both an instanceof of {int x, int y} and an instance of MyType.

Nested Class Summary

Nested classes/interfaces inherited from class wyal.heap.AbstractSyntacticItem

AbstractSyntacticItem.Blocks, AbstractSyntacticItem.Extras, AbstractSyntacticItem.Operands, AbstractSyntacticItem.Schema

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.SyntacticElement

wybs.lang.SyntacticElement.Impl

Field Summary

Fields inherited from class wyal.heap.AbstractSyntacticItem

data

Fields inherited from interface wyal.lang.WyalFile.Type

Any, Bool, Int, Null, Void

Constructor Summary

Constructors

Constructor and Description
Intersection(WyalFile.Type[] types, wybs.lang.Attribute... attributes)

Method Summary

Modifier and Type	Method and Description
WyalFile.Type.Intersection	clone(SyntacticItem[] operands) Create a new copy of the given syntactic item with the given operands.
String	toString()

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

getOperand, getOperands

Methods inherited from class wyal.heap.AbstractSyntacticItem

allocate, compareTo, equals, getData, getIndex, getOpcode, getParent, hashCode, setOpcode, setOperand, size

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 wyal.lang.SyntacticItem

allocate, getData, 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

Intersection

public Intersection(WyalFile.Type[] types,
                    wybs.lang.Attribute... attributes)

Method Detail

clone

public WyalFile.Type.Intersection clone(SyntacticItem[] operands)

Description copied from interface: SyntacticItem

Create a new copy of the given syntactic item with the given operands. The number of operands must match size() for this item, and be of appropriate type.

Returns:

toString

public String toString()

Overrides:

toString in class AbstractSyntacticItem