Interface LambdaFunction

All Superinterfaces:

Maker, MethodMaker

public sealed interface LambdaFunction
extends MethodMaker

Allows a lambda function to be defined. This interface extends MethodMaker for adding code to the lambda function implementation. The first parameters to the method are the captured values, and the rest are the actual function parameters.

See Also:

• ClassMaker.addLambdaFunction(Object, Object, String, Object...)
• MethodMaker.create(LambdaFunction, Object...)

Method Summary

Modifier and Type	Method	Description
void	addBridgeMethod(Object retType, Object... paramTypes)	Adds a descriptor for a bridge method that the generated function class should define.
void	addMarkerInterface(Object markerType)	Adds a marker interface that the generated function should implement.
Type	functionType()	Returns the function interface type.

Methods inherited from interface Maker

addAnnotation, addAttribute, classMaker

Modifier and Type	Method	Description
AnnotationMaker	addAnnotation(Object annotationType, boolean visible)	Add an annotation to this item.
void	addAttribute(String name, Object value)	Add a generic JVM attribute which optionally references a constant value.
ClassMaker	classMaker()	Returns the ClassMaker for this item, which can also be used as a type specification.

Methods inherited from interface MethodMaker

abstract_, access, addExplicitInnerClass, addInnerClass, bridge, catch_, catch_, catch_, class_, concat, create, field, final_, finally_, finally_, finally_, finish, getParamTypes, getReturnType, goto_, invoke, invoke, invokeSuperConstructor, invokeThisConstructor, label, lineNum, name, native_, new_, nop, override, param, paramCount, private_, protected_, public_, receiverType, return_, return_, signature, static_, super_, super_, synchronized_, synthetic, this_, throws_, var, varargs

Modifier and Type	Method	Description
MethodMaker	abstract_()	Switch this method to be abstract.
Field	access(VarHandle handle, Object... values)	Access a VarHandle via a pseudo field.
ClassMaker	addExplicitInnerClass(String fullName, String className)	Add an inner class to this method, with an explicitly specified class name.
ClassMaker	addInnerClass(String className)	Add an inner class to this method.
MethodMaker	bridge()	Indicate that this method is a bridge, which implements an inherited method exactly, but it delegates to another method which returns a more specialized return type.
void	catch_(Label tryStart, Object type, Consumer<Variable> handler)	Convenience method which defines an exception handler here.
Variable	catch_(Label tryStart, Label tryEnd, Object type)	Define an exception handler here, which catches exceptions between the given labels.
Variable	catch_(Label tryStart, Label tryEnd, Object... types)	Define an exception handler here, which catches exceptions between the given labels.
Variable	class_()	Returns a variable of type Class which represents the enclosing class of this method.
Variable	concat(Object... values)	Concatenate variables and constants together into a new String in the same manner as the Java concatenation operator.
Variable	create(LambdaFunction function, Object... values)	Returns a variable which refers to a lambda function instance.
Field	field(String name)	Access a static or instance field in the enclosing object of this method.
MethodMaker	final_()	Switch this method to be final.
default void	finally_(Label tryStart, boolean suppress, Runnable handler)	Define a finally handler which is generated for every possible exit path between the start label and here.
void	finally_(Label tryStart, Runnable handler)	Define a finally handler which is generated for every possible exit path between the start label and here.
void	finally_(Label tryStart, Consumer<Variable> handler)	Define a finally handler which is generated for every possible exit path between the start label and here.
MethodHandle	finish()	Finishes the definition of a standalone method.
Type[]	getParamTypes()	Returns the parameter types of this method.
Type	getReturnType()	Returns the return type of this method.
void	goto_(Label label)	Generates an unconditional goto statement to the given label, which doesn't need to be positioned yet.
Variable	invoke(MethodHandle handle, Object... values)	Invoke a method via a MethodHandle.
Variable	invoke(String name, Object... values)	Invoke a static or instance method on the enclosing object of this method.
void	invokeSuperConstructor(Object... values)	Invoke a super constructor method on the enclosing object of this method, from within a constructor.
void	invokeThisConstructor(Object... values)	Invoke a this constructor method on the enclosing object of this method, from within a constructor.
Label	label()	Returns a new label, initially unpositioned.
void	lineNum(int num)	Define a line number to represent the location of the next code instruction.
String	name()	Returns the name of this method.
MethodMaker	native_()	Switch this method to be native.
Variable	new_(Object type, Object... values)	Allocate a new object.
void	nop()	Append an instruction which does nothing, which can be useful for debugging.
MethodMaker	override()	Verifies that this method overrides an inherited virtual method.
Parameter	param(int index)	Returns a variable which accesses a parameter of the method being built.
int	paramCount()	Returns the number of parameters which can be accessed by the param method.
MethodMaker	private_()	Switch this method to be private.
MethodMaker	protected_()	Switch this method to be protected.
MethodMaker	public_()	Switch this method to be public.
MethodMaker	receiverType(Type type)	Define a receiver type for the sole purpose of annotating the implicit this parameter.
void	return_()	Generates a return void statement.
void	return_(Object value)	Generates a statement which returns a variable or a constant.
MethodMaker	signature(Object... components)	Define a signature for this member, which is a string for supporting generic types.
MethodMaker	static_()	Switch this method to be static.
Variable	super_()	Returns a variable which is used for invoking superclass methods.
Variable	super_(Object type)	Returns a variable which is used for invoking inherited interface methods.
MethodMaker	synchronized_()	Switch this method to be synchronized.
MethodMaker	synthetic()	Indicate that this method is synthetic.
Variable	this_()	Returns a variable which accesses the enclosing object of this method.
MethodMaker	throws_(Object type)	Declare that this method throws the given exception type.
Variable	var(Object type)	Returns a new uninitialized variable with the given type.
MethodMaker	varargs()	Indicate that this method supports a variable number of arguments.

Method Details

functionType

Type functionType()

Returns the function interface type.

addMarkerInterface

void addMarkerInterface(Object markerType)

Adds a marker interface that the generated function should implement. The marker interface shouldn't have any abstract methods.

See Also:

• Types and Values

addBridgeMethod

void addBridgeMethod(Object retType,
 Object... paramTypes)

Adds a descriptor for a bridge method that the generated function class should define. A bridge method has a more specific signature than the primary function method.

Parameters:

retType - a class or name; can be null if the method returns void

paramTypes - classes or names

See Also:

• Types and Values