/**
* Return if the Fantom Type is represented as a Java class such as sys::Int as java.lang.Long.
*/
public static boolean isJavaRepresentation(Type t) {
if (t.pod() != Sys.sysPod) return false;
return t == Sys.ObjType
|| t == Sys.BoolType
|| t == Sys.StrType
|| t == Sys.IntType
|| t == Sys.FloatType
|| t == Sys.NumType
|| t == Sys.DecimalType;
}
/** Given a Fantom type, get its stack type: 'A', 'I', 'J', etc */
public static int toJavaStackType(Type t) {
if (!t.isNullable()) {
if (t == Sys.VoidType) return 'V';
if (t == Sys.BoolType) return 'I';
if (t == Sys.IntType) return 'J';
if (t == Sys.FloatType) return 'D';
if (t.isJava() && t.podName().equals("[java]")) {
// FFI primitives
if (t.name().equals("byte")) return 'I';
if (t.name().equals("char")) return 'I';
if (t.name().equals("short")) return 'I';
if (t.name().equals("int")) return 'I';
if (t.name().equals("float")) return 'F';
// fail-safe
if (t.name().equals("long")) return 'L';
if (t.name().equals("boolean")) return 'F';
if (t.name().equals("double")) return 'D';
}
}
return 'A';
}
/** Given a Fantom type, get the Java type signature: fan/sys/Duration */
public static String toJavaTypeSig(Type t) {
return toJavaTypeSig(t.podName(), t.name(), t.isNullable());
}