Class OptionalExpression

java.lang.Object

com.oracle.js.parser.ir.Node

com.oracle.js.parser.ir.Expression

com.oracle.js.parser.ir.OptionalExpression

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

BaseNode, CallNode

public abstract class OptionalExpression
extends Expression

Common superclass for nodes that can be an optional expression or part of an optional chain.

Field Summary

Fields inherited from class com.oracle.js.parser.ir.Node

finish, start

Constructor Summary

Constructors

Modifier	Constructor	Description
	OptionalExpression(long token, int finish)
	OptionalExpression(long token, int start, int finish)
protected	OptionalExpression(OptionalExpression baseNode)

Method Summary

Modifier and Type	Method	Description
abstract boolean	isOptional()	Returns true if this is an optional property access or call (a?.b, a?.[b], or a?.()).
abstract boolean	isOptionalChain()	Returns true if this part of an optional chain.

Methods inherited from class com.oracle.js.parser.ir.Expression

getFinish, getFinishWithoutParens, getStart, getStartWithoutParens, isAlwaysFalse, isAlwaysTrue, isParenthesized, isSelfModifying, makeParenthesized

Methods inherited from class com.oracle.js.parser.ir.Node

accept, accept, clone, equals, getSourceOrder, getToken, hashCode, isAssignment, isLoop, isTokenType, tokenType, toString, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Details

OptionalExpression

public OptionalExpression(long token,
 int start,
 int finish)

OptionalExpression

public OptionalExpression(long token,
 int finish)

OptionalExpression

protected OptionalExpression(OptionalExpression baseNode)

Method Details

isOptional

public abstract boolean isOptional()

Returns true if this is an optional property access or call (a?.b, a?.[b], or a?.()).

isOptionalChain

public abstract boolean isOptionalChain()

Returns true if this part of an optional chain.