com.google.javascript.rhino.jstype

Class UnionType.Builder

java.lang.Object

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

Enclosing class:

UnionType

public static final class UnionType.Builder
extends java.lang.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 and Description
UnionType.Builder	addAlternate(JSType alternate) Adds an alternate to the union type under construction.
UnionType.Builder	addAlternates(java.util.Collection<? extends JSType> c)
UnionType.Builder	addAlternates(java.util.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 Detail

addAlternates

public UnionType.Builder addAlternates(java.util.Collection<? extends JSType> c)

addAlternates

public UnionType.Builder addAlternates(java.util.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.