/**
* Set the local stack frame. This method is used when creating a Closure to support delayed
* evaluation of expressions. The "stack frame" is actually on the Java heap, which means it can
* survive function returns and the like.
*/
public void setStackFrame(SlotManager map, ValueRepresentation[] variables) {
stackFrame = new StackFrame(map, variables);
if (map != null && variables.length != map.getNumberOfVariables()) {
stackFrame.slots = new ValueRepresentation[map.getNumberOfVariables()];
System.arraycopy(variables, 0, stackFrame.slots, 0, variables.length);
}
}
/**
* Create a new stack frame for local variables, using the supplied SlotManager to define the
* allocation of slots to individual variables
*
* @param map the SlotManager for the new stack frame
*/
public void openStackFrame(SlotManager map) {
stackFrame = new StackFrame(map, new ValueRepresentation[map.getNumberOfVariables()]);
}