static int parameterSize(ParameterType parameterType) {
switch (parameterType.nativeType()) {
case SCHAR:
case UCHAR:
case SSHORT:
case USHORT:
case SINT:
case UINT:
case SLONG:
case ULONG:
case POINTER:
case FLOAT:
return 4;
case SLONG_LONG:
case ULONG_LONG:
case DOUBLE:
return 8;
default:
throw new IllegalArgumentException("invalid parameter type" + parameterType);
}
}
boolean canCompile(
ResultType returnType, ParameterType[] parameterTypes, CallingConvention convention) {
switch (returnType.nativeType()) {
case VOID:
case SCHAR:
case UCHAR:
case SSHORT:
case USHORT:
case SINT:
case UINT:
case SLONG:
case ULONG:
case SLONG_LONG:
case ULONG_LONG:
case FLOAT:
case DOUBLE:
case POINTER:
break;
default:
return false;
}
// There is only one calling convention; SYSV, so abort if someone tries to use stdcall
if (convention != CallingConvention.DEFAULT) {
return false;
}
int fCount = 0;
int iCount = 0;
for (ParameterType t : parameterTypes) {
switch (t.nativeType()) {
case SCHAR:
case UCHAR:
case SSHORT:
case USHORT:
case SINT:
case UINT:
case SLONG:
case ULONG:
case SLONG_LONG:
case ULONG_LONG:
case POINTER:
++iCount;
break;
case FLOAT:
case DOUBLE:
++fCount;
break;
default:
// Fail on anything else
return false;
}
}
// We can only safely compile methods with up to 6 integer and 8 floating point parameters
return true;
}