alef-backend-java 0.15.21

Java (Panama FFM) backend for alef
Documentation 
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    // Visitor FFI handles
    static final MethodHandle {{ prefix_upper }}_VISITOR_CREATE = LINKER.downcallHandle(
        LIB.find("{{ prefix }}_visitor_create").orElseThrow(),
        FunctionDescriptor.of(ValueLayout.ADDRESS, ValueLayout.ADDRESS)
    );

    static final MethodHandle {{ prefix_upper }}_VISITOR_FREE = LINKER.downcallHandle(
        LIB.find("{{ prefix }}_visitor_free").orElseThrow(),
        FunctionDescriptor.ofVoid(ValueLayout.ADDRESS)
    );

    static final MethodHandle {{ prefix_upper }}_OPTIONS_SET_VISITOR_HANDLE = LINKER.downcallHandle(
        LIB.find("{{ prefix }}_options_set_visitor_handle").orElseThrow(),
        FunctionDescriptor.ofVoid(ValueLayout.ADDRESS, ValueLayout.ADDRESS)
    );