Class Nodes.UnlessNode

java.lang.Object

org.prism.Nodes.Node

org.prism.Nodes.UnlessNode

Enclosing class:

Nodes

public static final class Nodes.UnlessNode
extends Nodes.Node

 Represents the use of the `unless` keyword, either in the block form or the modifier form.

     bar unless foo
     ^^^^^^^^^^^^^^

     unless foo then bar end
     ^^^^^^^^^^^^^^^^^^^^^^^
 

Field Summary

Fields

Modifier and Type	Field	Description
final Nodes.ElseNode	else_clause	The else clause of the unless expression, if present.
final Nodes.Node	predicate	The condition to be evaluated for the unless expression.
final Nodes.StatementsNode	statements	The body of statements that will executed if the unless condition is falsey.

Fields inherited from class org.prism.Nodes.Node

EMPTY_ARRAY, length, startOffset

Constructor Summary

Constructors

Constructor	Description
UnlessNode(int startOffset, int length, Nodes.Node predicate, Nodes.StatementsNode statements, Nodes.ElseNode else_clause)

Method Summary

Modifier and Type	Method	Description
<T> T	accept(AbstractNodeVisitor<T> visitor)
Nodes.Node[]	childNodes()
void	setNewLineFlag(Nodes.Source source, boolean[] newlineMarked)
protected String	toString(String indent)
<T> void	visitChildNodes(AbstractNodeVisitor<T> visitor)

Methods inherited from class org.prism.Nodes.Node

endOffset, hasNewLineFlag, setNewLineFlag, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

predicate

public final Nodes.Node predicate

 The condition to be evaluated for the unless expression. It can be any [non-void expression](https://github.com/ruby/prism/blob/main/docs/parsing_rules.md#non-void-expression).

     unless cond then bar end
            ^^^^

     bar unless cond
                ^^^^
 

statements

public final Nodes.StatementsNode statements

 The body of statements that will executed if the unless condition is
 falsey. Will be `nil` if no body is provided.

     unless cond then bar end
                      ^^^
 

else_clause

public final Nodes.ElseNode else_clause

 The else clause of the unless expression, if present.

     unless cond then bar else baz end
                          ^^^^^^^^
 

Constructor Details

UnlessNode

public UnlessNode(int startOffset,
 int length,
 Nodes.Node predicate,
 Nodes.StatementsNode statements,
 Nodes.ElseNode else_clause)

Method Details

setNewLineFlag

public void setNewLineFlag(Nodes.Source source,
 boolean[] newlineMarked)

Overrides:

setNewLineFlag in class Nodes.Node

visitChildNodes

public <T> void visitChildNodes(AbstractNodeVisitor<T> visitor)

Specified by:

visitChildNodes in class Nodes.Node

childNodes

public Nodes.Node[] childNodes()

Specified by:

childNodes in class Nodes.Node

accept

public <T> T accept(AbstractNodeVisitor<T> visitor)

Specified by:

accept in class Nodes.Node

toString

protected String toString(String indent)

Specified by:

toString in class Nodes.Node