com.facebook.buck.jvm.java.lang.model

Class BridgeMethod

java.lang.Object

com.facebook.buck.jvm.java.lang.model.BridgeMethod

public class BridgeMethod
extends Object

A bridge method is used in Java to translate certain language constructs (like overriding methods with covariant return types) into a form that can be understood by the VM.

Field Summary

Fields

Modifier and Type	Field and Description
ExecutableElement	from For a normal override bridge, this is the overriding method.
ExecutableElement	to For a normal override bridge, this is the method being overridden.

Constructor Summary

Constructors

Constructor and Description
BridgeMethod(ExecutableElement from, ExecutableElement to)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
int	hashCode()
boolean	isAccessibilityBridge() Bridge methods may be generated for public methods of non-public superclasses to (as the compiler source puts it) "work around a horrible but permanent reflection design error."
boolean	isOverrideBridge() Bridge methods may be generated when an overriding method has a different erasure than the overridden method, or a different return type.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

from

public final ExecutableElement from

For a normal override bridge, this is the overriding method. For an accessibility bridge, this is the same as to.

to

public final ExecutableElement to

For a normal override bridge, this is the method being overridden. For an accessibility bridge, this is a public method in a non-public superclass of the current class.

Constructor Detail

BridgeMethod

public BridgeMethod(ExecutableElement from,
                    ExecutableElement to)

Method Detail

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

isAccessibilityBridge

public boolean isAccessibilityBridge()

Bridge methods may be generated for public methods of non-public superclasses to (as the compiler source puts it) "work around a horrible but permanent reflection design error."

Returns:

true if this is such a bridge method

isOverrideBridge

public boolean isOverrideBridge()

Bridge methods may be generated when an overriding method has a different erasure than the overridden method, or a different return type. (The VM only sees erased types, and at the VM level overloading on return type is legal, so these bridge methods are necessary to implement overriding as the Java language specifies it.)

Returns:

true if this is such a bridge method