UnionType.Builder

java.lang.Object

com.google.javascript.rhino.jstype.UnionType.Builder

Enclosing class:: UnionType

public static final class UnionType.Builder extends Object

Implements type unioning logic, since UnionTypes only actually need to perform unioning operations when being (re)built.

UnionType.Builders exist in two forms. One for assembing a new union and one for updating an existing union. Only the former is exposed.

Most users of this class should prefer JSTypeRegistry.createUnionType(com.google.javascript.rhino.jstype.JSType...) instead.

Method Summary

Modifier and Type

Method

Description

UnionType.Builder

addAlternate(JSType alternate)

Adds an alternate to the union type under construction.

UnionType.Builder

addAlternates(Collection<? extends JSType> c)

UnionType.Builder

addAlternates(List<? extends JSType> list)

JSType

build()

Returns a type, not necessarily a UnionType, that represents the union of the inputs.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details
- addAlternates
  
  public UnionType.Builder addAlternates(Collection<? extends JSType> c)
- addAlternates
  
  public UnionType.Builder addAlternates(List<? extends JSType> list)
- addAlternate
  
  public UnionType.Builder addAlternate(JSType alternate)
  
  Adds an alternate to the union type under construction.
  Returns this for easy chaining.
- build
  
  public JSType build()
  
  Returns a type, not necessarily a UnionType, that represents the union of the inputs.
  The UnionType.Builder cannot be used again once this method is called.