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// Test to check the exception classes in the throws attribute of the typemaps and except feature is working
%module java_throws
// Exceptions are chosen at random but are ones which have to have a try catch block to compile
%typemap(in, throws=" ClassNotFoundException") int num {
$1 = (int)$input;
}
%typemap(freearg, throws="InstantiationException ") int num "/*not written*/"
%typemap(argout, throws="CloneNotSupportedException ") int num "/*not written*/"
%typemap(check, throws="NoSuchFieldException") int num {
if ($input == 10) {
jenv->ExceptionClear();
jclass excep = jenv->FindClass("java/lang/NoSuchFieldException");
if (excep)
jenv->ThrowNew(excep, "Value of 10 not acceptable");
return $null;
}
}
// Duplicate exceptions should be removed from the generated throws clause
%typemap(out, throws="IllegalAccessException, NoSuchFieldException, CloneNotSupportedException ") short {
$result = (jshort)$1;
}
%inline %{
short full_of_exceptions(int num) {
return 0;
}
%}
%typemap(throws, throws="IllegalAccessException") int {
(void)$1;
jclass excep = jenv->FindClass("java/lang/IllegalAccessException");
if (excep) {
jenv->ThrowNew(excep, "Test exception");
}
return $null;
}
%inline %{
#if defined(_MSC_VER)
#pragma warning(disable: 4290) // C++ exception specification ignored except to indicate a function is not __declspec(nothrow)
#endif
bool throw_spec_function(int value) throw (int) { throw (int)0; }
#if defined(_MSC_VER)
#pragma warning(default: 4290) // C++ exception specification ignored except to indicate a function is not __declspec(nothrow)
#endif
%}
%catches(int) catches_function(int value);
%inline %{
bool catches_function(int value) { throw (int)0; }
%}
// Check newfree typemap throws attribute
%newobject makeTestClass;
%typemap(newfree, throws="NoSuchMethodException") TestClass* "/*not written*/"
%inline %{
class TestClass {
int x;
public:
TestClass(int xx) : x(xx) {}
};
TestClass* makeTestClass() { return new TestClass(1000); }
%}
// javain typemap throws attribute
// Will only compile if the fileFunction has a java.io.IOException throws clause as getCanonicalPath() throws this exception
%typemap(jstype) char* someFileArgument "java.io.File"
%typemap(javain, throws="java.io.IOException") char* someFileArgument "$javainput.getCanonicalPath()"
%inline %{
void fileFunction(char* someFileArgument) {}
%}
// javout typemap throws attribute
%typemap(javaout, throws="java.io.IOException") int {
int returnValue=$jnicall;
if (returnValue==0) throw new java.io.IOException("some IOException");
return returnValue;
}
%inline %{
int ioTest() { return 0; }
%}
// except feature (%javaexception) specifying a checked exception class for the throws clause
%typemap(javabase) MyException "Throwable";
%typemap(javacode) MyException %{
public static final long serialVersionUID = 0x52151000; // Suppress ecj warning
%}
%inline %{
struct MyException {
MyException(const char *msg) {}
};
%}
%define JAVAEXCEPTION(METHOD)
%javaexception("MyException") METHOD %{
try {
$action
} catch (MyException) {
jclass excep = jenv->FindClass("java_throws/MyException");
if (excep)
jenv->ThrowNew(excep, "exception message");
return $null;
}
%}
%enddef
JAVAEXCEPTION(FeatureTest::FeatureTest)
JAVAEXCEPTION(FeatureTest::method)
JAVAEXCEPTION(FeatureTest::staticMethod)
%inline %{
struct FeatureTest {
static void staticMethod() {
throw MyException("no message");
}
void method() {
throw MyException("no message");
}
};
%}
// Mixing except feature and typemaps when both generate a class for the throws clause
%typemap(in, throws="ClassNotFoundException") int both {
$1 = (int)$input;
}
%javaexception("MyException , NoSuchFieldException") globalFunction %{
try {
$action
} catch (MyException) {
jclass excep = jenv->FindClass("java_throws/MyException");
if (excep)
jenv->ThrowNew(excep, "exception message");
return $null;
}
%}
%inline %{
void globalFunction(int both) {
throw MyException("no message");
}
%}
// Test %nojavaexception
%javaexception("MyException") %{
/* global exception handler */
try {
$action
} catch (MyException) {
jclass excep = jenv->FindClass("java_throws/MyException");
if (excep)
jenv->ThrowNew(excep, "exception message");
return $null;
}
%}
%nojavaexception *::noExceptionPlease();
%nojavaexception NoExceptTest::NoExceptTest();
// Need to handle the checked exception in NoExceptTest.delete()
%typemap(javafinalize) SWIGTYPE %{
protected void finalize() {
try {
delete();
} catch (MyException e) {
throw new RuntimeException(e);
}
}
%}
%inline %{
struct NoExceptTest {
unsigned int noExceptionPlease() { return 123; }
unsigned int exceptionPlease() { return 456; }
~NoExceptTest() {}
};
%}
// Turn global exceptions off (for the implicit destructors/constructors)
%nojavaexception;
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