Package com.orbit.parse

Record Class ConditionalExpr

java.lang.Object

java.lang.Record

com.orbit.parse.ConditionalExpr

Record Components:

condition - the condition to evaluate; must not be null

yes - the branch to take when the condition is satisfied; must not be null

noAlt - the branch to take when the condition is not satisfied; must not be null (use Epsilon for no-else)

All Implemented Interfaces:

Expr

public record ConditionalExpr(ConditionalExpr.Condition condition, Expr yes, Expr noAlt)
extends Record
implements Expr

AST node representing a .NET conditional subpattern (?(condition)yes|no).

The condition is represented as a sealed ConditionalExpr.Condition hierarchy:

• ConditionalExpr.GroupIndexCondition — condition is whether a numbered group participated.
• ConditionalExpr.GroupNameCondition — condition is whether a named group or balance stack is non-empty.
• ConditionalExpr.LookaheadCondition — condition is a lookahead (positive or negative).

The noAlt branch is Epsilon when the pattern uses the single-branch form (?(cond)yes).

Instances are immutable and safe for use by multiple concurrent threads.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ConditionalExpr.Condition	Sealed base type for conditional subpattern conditions.
static final record	ConditionalExpr.GroupIndexCondition	Condition that tests whether a numbered capturing group participated in the current match.
static final record	ConditionalExpr.GroupNameCondition	Condition that tests whether a named capturing group participated or whether a balance stack is non-empty.
static final record	ConditionalExpr.LookaheadCondition	Condition that tests a lookahead assertion at the current position.

Constructor Summary

Constructors

Constructor	Description
ConditionalExpr(ConditionalExpr.Condition condition, Expr yes, Expr noAlt)	Creates a new ConditionalExpr.

Method Summary

Modifier and Type	Method	Description
ConditionalExpr.Condition	condition()	Returns the value of the condition record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
Expr	noAlt()	Returns the value of the noAlt record component.
final String	toString()	Returns a string representation of this record class.
Expr	yes()	Returns the value of the yes record component.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.orbit.parse.Expr

span

Constructor Details

ConditionalExpr

public ConditionalExpr(ConditionalExpr.Condition condition,
 Expr yes,
 Expr noAlt)

Creates a new ConditionalExpr.

Method Details

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

condition

public ConditionalExpr.Condition condition()

Returns the value of the condition record component.

Returns:

the value of the condition record component

yes

public Expr yes()

Returns the value of the yes record component.

Returns:

the value of the yes record component

noAlt

public Expr noAlt()

Returns the value of the noAlt record component.

Returns:

the value of the noAlt record component