"this" keyword

SystemVerilog
3

In reply to ChChee:

This is a poor example; the code is illegal. You are not allowed to do operations on class variables except for comparisons. It should be
if (one_env==null)…. Also,
one_env is typically declared with a
local or
protected property qualifier to prevent other people from accessing directly.

**this** is an implicit argument to all non-static class methods that represents a handle to the class object the method got called with.