Answer the ‘cleanness’ of the block. 0 = clean; 1 = access to receiver variables and/or self; 2-30 = access to variables that are 1-29 contexts away; 31 = return from method or push thisContext
Answer the CompiledMethod in which the receiver lies
Answer the class in which the receiver is installed.
Set the receiver’s class instance variable
Answer the number of arguments passed to the receiver
Answer the number of literals for the receiver
Answer the number of temporary variables used by the receiver
Answer the selector through which the method is called
Set the selector through which the method is called
Answer the delta from the numbers in LINE_NUMBER bytecodes to source code line numbers.
Answer an array which maps bytecode indices to source code line numbers. 0 values represent invalid instruction pointer indices.
Answer the number of stack slots needed for the receiver