Record Class CovarianceData

java.lang.Object

java.lang.Record

org.ek9lang.compiler.phase3.CovarianceData

record CovarianceData(IToken token, String errorMessage, ISymbol fromVar, ISymbol toVar)
extends Record

Used for checking covariance based on a variable. Navigate the variable to get the type, then check the type. Clearly it is also possible that either the from or to could be missing or even their types could be missing.

Constructor Summary

Constructors

Constructor	Description
CovarianceData(IToken token, String errorMessage, ISymbol fromVar, ISymbol toVar)	Creates an instance of a CovarianceData record class.

Method Summary

Modifier and Type	Method	Description
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
String	errorMessage()	Returns the value of the errorMessage record component.
ISymbol	fromVar()	Returns the value of the fromVar record component.
final int	hashCode()	Returns a hash code value for this object.
IToken	token()	Returns the value of the token record component.
final String	toString()	Returns a string representation of this record class.
ISymbol	toVar()	Returns the value of the toVar record component.

Methods inherited from class Object

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

Constructor Details

CovarianceData

CovarianceData(IToken token,
 String errorMessage,
 ISymbol fromVar,
 ISymbol toVar)

Creates an instance of a CovarianceData record class.

Parameters:

token - the value for the token record component

errorMessage - the value for the errorMessage record component

fromVar - the value for the fromVar record component

toVar - the value for the toVar record component

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.

token

public IToken token()

Returns the value of the token record component.

Returns:

the value of the token record component

errorMessage

public String errorMessage()

Returns the value of the errorMessage record component.

Returns:

the value of the errorMessage record component

fromVar

public ISymbol fromVar()

Returns the value of the fromVar record component.

Returns:

the value of the fromVar record component

toVar

public ISymbol toVar()

Returns the value of the toVar record component.

Returns:

the value of the toVar record component