%module Mcl %include "std_string.i" %include "std_except.i" %apply(char *STRING, size_t LENGTH) { (const char *cbuf, size_t bufSize) }; %{ #include #include "mcl_impl.hpp" %} %include "mcl_impl.hpp" %javaconst(1); #define BN254 0 #define BLS12_381 5 %typemap(jtype) void serialize "byte[]" %typemap(jstype) void serialize "byte[]" %typemap(jni) void serialize "jbyteArray" %typemap(javaout) void serialize { return $jnicall; } %typemap(in, numinputs=0) std::string& out (std::string temp) "$1=&temp;" %typemap(argout) std::string& out { $result = JCALL1(NewByteArray, jenv, $1->size()); JCALL4(SetByteArrayRegion, jenv, $result, 0, $1->size(), (const jbyte*)$1->c_str()); }