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swig/Lib/java/boost_shared_ptr.i
William S Fulton 71cd6a38fe Performance optimisation for directors for classes passed by value 
The directorin typemaps in the director methods now use std::move on the
input parameter when copying the object from the stack to the heap prior
to the callback into the target language, thereby taking advantage of
move semantics if available.
2022-07-04 11:19:29 +01:00

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// Users can provide their own SWIG_SHARED_PTR_TYPEMAPS macro before including this file to change the
// visibility of the constructor and getCPtr method if desired to public if using multiple modules.
#ifndef SWIG_SHARED_PTR_TYPEMAPS
#define SWIG_SHARED_PTR_TYPEMAPS(CONST, TYPE...) SWIG_SHARED_PTR_TYPEMAPS_IMPLEMENTATION(protected, protected, CONST, TYPE)
#endif
%include <shared_ptr.i>
// Language specific macro implementing all the customisations for handling the smart pointer
%define SWIG_SHARED_PTR_TYPEMAPS_IMPLEMENTATION(PTRCTOR_VISIBILITY, CPTR_VISIBILITY, CONST, TYPE...)
// %naturalvar is as documented for member variables
%naturalvar TYPE;
%naturalvar SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >;
// destructor wrapper customisation
%feature("unref") TYPE
//"if (debug_shared) { cout << \"deleting use_count: \" << (*smartarg1).use_count() << \" [\" << (boost::get_deleter<SWIG_null_deleter>(*smartarg1) ? std::string(\"CANNOT BE DETERMINED SAFELY\") : ( (*smartarg1).get() ? (*smartarg1)->getValue() : std::string(\"NULL PTR\") )) << \"]\" << endl << flush; }\n"
"(void)arg1; delete smartarg1;"
// Typemap customisations...
// plain value
%typemap(in) CONST TYPE ($&1_type argp = 0) %{
argp = (*(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) ? (*(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input)->get() : 0;
if (!argp) {
SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "Attempt to dereference null $1_type");
return $null;
}
$1 = *argp; %}
%typemap(out) CONST TYPE
%{ *(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$result = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >(new $1_ltype(($1_ltype &)$1)); %}
%typemap(directorin,descriptor="L$packagepath/$&javaclassname;") CONST TYPE
%{ $input = 0;
*((SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > (new $1_ltype(SWIG_STD_MOVE($1))); %}
%typemap(directorout) CONST TYPE
%{ if (!$input) {
SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "Attempt to dereference null $1_type");
return $null;
}
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *smartarg = *(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input;
$result = *smartarg->get();
%}
// plain pointer
%typemap(in) CONST TYPE * (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *smartarg = 0) %{
smartarg = *(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input;
$1 = (TYPE *)(smartarg ? smartarg->get() : 0); %}
%typemap(out, fragment="SWIG_null_deleter") CONST TYPE * %{
*(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$result = $1 ? new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >($1 SWIG_NO_NULL_DELETER_$owner) : 0;
%}
%typemap(directorin,descriptor="L$packagepath/$javaclassname;") CONST TYPE *
%{ $input = 0;
if ($1) {
*((SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > ($1 SWIG_NO_NULL_DELETER_0);
} %}
%typemap(directorout) CONST TYPE * %{
#error "typemaps for $1_type not available"
%}
// plain reference
%typemap(in) CONST TYPE & %{
$1 = ($1_ltype)((*(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) ? (*(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input)->get() : 0);
if (!$1) {
SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "$1_type reference is null");
return $null;
} %}
%typemap(out, fragment="SWIG_null_deleter") CONST TYPE &
%{ *(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$result = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >($1 SWIG_NO_NULL_DELETER_$owner); %}
%typemap(directorin,descriptor="L$packagepath/$javaclassname;") CONST TYPE &
%{ $input = 0;
*((SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > (&$1 SWIG_NO_NULL_DELETER_0); %}
%typemap(directorout) CONST TYPE & %{
#error "typemaps for $1_type not available"
%}
// plain pointer by reference
%typemap(in) TYPE *CONST& ($*1_ltype temp = 0)
%{ temp = (TYPE *)((*(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) ? (*(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input)->get() : 0);
$1 = &temp; %}
%typemap(out, fragment="SWIG_null_deleter") TYPE *CONST&
%{ *(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$result = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >(*$1 SWIG_NO_NULL_DELETER_$owner); %}
%typemap(directorin,descriptor="L$packagepath/$*javaclassname;") TYPE *CONST&
%{ $input = 0;
if ($1) {
*((SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > ($1 SWIG_NO_NULL_DELETER_0);
} %}
%typemap(directorout) TYPE *CONST& %{
#error "typemaps for $1_type not available"
%}
// shared_ptr by value
%typemap(in) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > ($&1_type argp)
%{ argp = *($&1_ltype*)&$input;
if (argp) $1 = *argp; %}
%typemap(out) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >
%{ *($&1_ltype*)&$result = $1 ? new $1_ltype($1) : 0; %}
%typemap(directorin,descriptor="L$packagepath/$typemap(jstype, TYPE);") SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >
%{ $input = 0;
if ($1) {
*((SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >($1);
} %}
%typemap(directorout) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >
%{ if ($input) {
$&1_type smartarg = *(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input;
$result = *smartarg;
} %}
// shared_ptr by reference
%typemap(in) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > & ($*1_ltype tempnull)
%{ $1 = $input ? *($&1_ltype)&$input : &tempnull; %}
%typemap(out) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > &
%{ *($&1_ltype)&$result = *$1 ? new $*1_ltype(*$1) : 0; %}
%typemap(directorin,descriptor="L$packagepath/$typemap(jstype, TYPE);") SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > &
%{ $input = 0;
if ($1) {
*((SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >($1);
} %}
%typemap(directorout) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > & %{
#error "typemaps for $1_type not available"
%}
// shared_ptr by pointer
%typemap(in) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > * ($*1_ltype tempnull)
%{ $1 = $input ? *($&1_ltype)&$input : &tempnull; %}
%typemap(out) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *
%{ *($&1_ltype)&$result = ($1 && *$1) ? new $*1_ltype(*$1) : 0;
if ($owner) delete $1; %}
%typemap(directorin,descriptor="L$packagepath/$typemap(jstype, TYPE);") SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *
%{ $input = 0;
if ($1 && *$1) {
*((SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >(*$1);
} %}
%typemap(directorout) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > * %{
#error "typemaps for $1_type not available"
%}
// shared_ptr by pointer reference
%typemap(in) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *& (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > tempnull, $*1_ltype temp = 0)
%{ temp = $input ? *($1_ltype)&$input : &tempnull;
$1 = &temp; %}
%typemap(out) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *&
%{ *($1_ltype)&$result = (*$1 && **$1) ? new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >(**$1) : 0; %}
%typemap(directorin,descriptor="L$packagepath/$typemap(jstype, TYPE);") SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *&
%{ $input = 0;
if ($1 && *$1) {
*((SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > **)&$input) = new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >(*$1);
} %}
%typemap(directorout) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *& %{
#error "typemaps for $1_type not available"
%}
// various missing typemaps - If ever used (unlikely) ensure compilation error rather than runtime bug
%typemap(in) CONST TYPE[], CONST TYPE[ANY], CONST TYPE (CLASS::*) %{
#error "typemaps for $1_type not available"
%}
%typemap(out) CONST TYPE[], CONST TYPE[ANY], CONST TYPE (CLASS::*) %{
#error "typemaps for $1_type not available"
%}
%typemap (jni) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > &,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *& "jlong"
%typemap (jtype) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > &,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *& "long"
%typemap (jstype) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > &,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *& "$typemap(jstype, TYPE)"
%typemap(javain) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > &,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *& "$typemap(jstype, TYPE).getCPtr($javainput)"
%typemap(javaout) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > {
long cPtr = $jnicall;
return (cPtr == 0) ? null : new $typemap(jstype, TYPE)(cPtr, true);
}
%typemap(javaout) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > & {
long cPtr = $jnicall;
return (cPtr == 0) ? null : new $typemap(jstype, TYPE)(cPtr, true);
}
%typemap(javaout) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > * {
long cPtr = $jnicall;
return (cPtr == 0) ? null : new $typemap(jstype, TYPE)(cPtr, true);
}
%typemap(javaout) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *& {
long cPtr = $jnicall;
return (cPtr == 0) ? null : new $typemap(jstype, TYPE)(cPtr, true);
}
%typemap(javaout) CONST TYPE {
return new $typemap(jstype, TYPE)($jnicall, true);
}
%typemap(javaout) CONST TYPE & {
return new $typemap(jstype, TYPE)($jnicall, true);
}
%typemap(javaout) CONST TYPE * {
long cPtr = $jnicall;
return (cPtr == 0) ? null : new $typemap(jstype, TYPE)(cPtr, true);
}
%typemap(javaout) TYPE *CONST& {
long cPtr = $jnicall;
return (cPtr == 0) ? null : new $typemap(jstype, TYPE)(cPtr, true);
}
%typemap(javadirectorout) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > "$typemap(jstype, TYPE).getCPtr($javacall)"
%typemap(javadirectorin) CONST TYPE,
CONST TYPE *,
CONST TYPE &,
TYPE *CONST& "($jniinput == 0) ? null : new $typemap(jstype, TYPE)($jniinput, true)"
%typemap(javadirectorin) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > &,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *& "($jniinput == 0) ? null : new $typemap(jstype, TYPE)($jniinput, true)"
// Base proxy classes
%typemap(javabody) TYPE %{
private transient long swigCPtr;
private transient boolean swigCMemOwn;
PTRCTOR_VISIBILITY $javaclassname(long cPtr, boolean cMemoryOwn) {
swigCMemOwn = cMemoryOwn;
swigCPtr = cPtr;
}
CPTR_VISIBILITY static long getCPtr($javaclassname obj) {
return (obj == null) ? 0 : obj.swigCPtr;
}
CPTR_VISIBILITY void swigSetCMemOwn(boolean own) {
swigCMemOwn = own;
}
%}
// Derived proxy classes
%typemap(javabody_derived) TYPE %{
private transient long swigCPtr;
private transient boolean swigCMemOwnDerived;
PTRCTOR_VISIBILITY $javaclassname(long cPtr, boolean cMemoryOwn) {
super($imclassname.$javaclazznameSWIGSmartPtrUpcast(cPtr), true);
swigCMemOwnDerived = cMemoryOwn;
swigCPtr = cPtr;
}
CPTR_VISIBILITY static long getCPtr($javaclassname obj) {
return (obj == null) ? 0 : obj.swigCPtr;
}
CPTR_VISIBILITY void swigSetCMemOwn(boolean own) {
swigCMemOwnDerived = own;
super.swigSetCMemOwn(own);
}
%}
%typemap(javadestruct, methodname="delete", methodmodifiers="public synchronized") TYPE {
if (swigCPtr != 0) {
if (swigCMemOwn) {
swigCMemOwn = false;
$jnicall;
}
swigCPtr = 0;
}
}
%typemap(javadestruct_derived, methodname="delete", methodmodifiers="public synchronized") TYPE {
if (swigCPtr != 0) {
if (swigCMemOwnDerived) {
swigCMemOwnDerived = false;
$jnicall;
}
swigCPtr = 0;
}
super.delete();
}
%typemap(directordisconnect, methodname="swigDirectorDisconnect") TYPE %{
protected void $methodname() {
swigSetCMemOwn(false);
$jnicall;
}
%}
%typemap(directorowner_release, methodname="swigReleaseOwnership") TYPE %{
public void $methodname() {
swigSetCMemOwn(false);
$jnicall;
}
%}
%typemap(directorowner_take, methodname="swigTakeOwnership") TYPE %{
public void $methodname() {
swigSetCMemOwn(true);
$jnicall;
}
%}
// Typecheck typemaps
%typemap(typecheck, precedence=SWIG_TYPECHECK_POINTER, equivalent="TYPE *")
TYPE CONST,
TYPE CONST &,
TYPE CONST *,
TYPE *CONST&,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > &,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *&
""
%template() SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >;
%enddef
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