Instead, I decided to give up on the idea of implicit references to instance variables. Languages like C++ let you write this->foo to explicitly reference the instance variable foo (in case there’s a separate local variable foo). Thus, I decided to make such explicit references the only way to reference instance variables. In addition, I decided that rather than making the current object ("this") a special keyword, I would simply make "this" (or its equivalent) the first named argument to a method. Instance variables would just always be referenced as attributes of that argument.

TCL was my first programming language (Eggdrop scripting)

Compared to other Smalltalk implementations, GNU Smalltalk is very different in one aspect: it is pragmatically designed to be a tool rather than an environment. It complements other tools that you use in your daily work, without any pretense of completel