Compiling and evaluating variable assignment

[emilywoods]

Local variables
Input lisp:

(let [x (+ 1 2) ] )

compiles to:

x = 1 + 2

which evaluates to:

3

Global variables
Input lisp:

(def input "Hello")

compiles to:

$input = "Hello"

which evaluates to:

"Hello"

[lpil]

For the let you may want to think a bit about limiting the scope of the variable.

(let [x 1]
  x + x)
x

This should error at the end as x is undefined, however it would not error if we compiled it to this ruby:

x = 1
x + x
x

Instead we might want something like this

begin
  x = 1
  x + x
end
x

[emilywoods]

Noted. :) 👍