/**
* Get LocalVariable object.
*
* <p>This relies on that the instruction list has already been dumped to byte code or or that the
* `setPositions' methods has been called for the instruction list.
*
* <p>Note that for local variables whose scope end at the last instruction of the method's code,
* the JVM specification is ambiguous: both a start_pc+length ending at the last instruction and
* start_pc+length ending at first index beyond the end of the code are valid.
*
* @param il instruction list (byte code) which this variable belongs to
* @param cp constant pool
*/
public LocalVariable getLocalVariable(ConstantPoolGen cp) {
int start_pc = start.getPosition();
int length = end.getPosition() - start_pc;
if (length > 0) length += end.getInstruction().getLength();
int name_index = cp.addUtf8(name);
int signature_index = cp.addUtf8(type.getSignature());
return new LocalVariable(
start_pc, length, name_index, signature_index, index, cp.getConstantPool());
}
/**
* Classify an expression according to its numeric type. kind==0: not a number. kind==1: a
* non-real number kind==2: real number kind==3: floating-point kind==4: exact integer
*/
public static int classify(Type type) {
int kind = 0;
if (type instanceof PrimType) {
char sig = type.getSignature().charAt(0);
if (sig == 'V' || sig == 'Z' || sig == 'C') return 0;
else if (sig == 'D' || sig == 'F') return 3;
else return 4;
} else if (type.isSubtype(Arithmetic.typeIntNum)) return 4;
else if (type.isSubtype(Arithmetic.typeDFloNum)) return 3;
else if (type.isSubtype(Arithmetic.typeRealNum)) return 2;
else if (type.isSubtype(Arithmetic.typeNumeric)) return 1;
else return 0;
}
/**
* Invokes the listener method for a state change.
*
* @param stateChangeEvent the state change event
*/
public void invoke(StateChangeEvent stateChangeEvent) {
ServerConnector connector = (ServerConnector) stateChangeEvent.getSource();
Class<?> declaringClass = this.declaringClass;
if (declaringClass == null) {
declaringClass = connector.getClass();
}
Type declaringType = TypeDataStore.getType(declaringClass);
try {
declaringType.getMethod(methodName).invoke(connector);
} catch (NoDataException e) {
throw new RuntimeException(
"Couldn't invoke @OnStateChange method "
+ declaringType.getSignature()
+ "."
+ methodName,
e);
}
}