MNIFunction

top.mcfpp.annotations.MNIFunction describes an ordinary Java MNI entry. Follow MNI introduction for project creation and source binding.

Wrapper entry signature

public static void method(
    readonly parameters...,
    ordinary parameters...,
    member caller,
    ValueWrapper<ResultType> result
)

Free functions omit the member caller. Entries returning void omit the result wrapper. Inputs use Var subclasses, such as MCInt. Entries with results supply them through result.set(value).

Read MNI parameters and results for complete matching examples.

Annotation fields

Field	Default	Meaning
readOnlyParams	{}	Readonly parameter types in order
normalParams	{}	Ordinary parameter types in order
caller	"void"	A member caller type marker
returnType	"void"	MCFPP result type
override	false	Mark an inherited method override
genericType	{}	Type parameter names for a generic caller
tag	{}	Additional tags
identifier	""	Registration name, defaulting to the Java method name
returnsConstWhenArgsConst	false	Declare constant results for constant inputs

The annotation targets Java methods and remains available at JVM runtime for compiler discovery. Explicit source declarations define source interfaces and actual caller types. caller supplies a type marker.

NativeCallContext entry

Another signature is public static void method(NativeCallContext context). This context supplies parameters, the caller, known values, and result publication. Standard library entries use it to access compiler read and write operations.

Property entries use this form. Read MNIAccessor and MNIMutator.