Local Variables & Assignment

Fast Intro#

While document variables are persisted, variables can be defined locally within code blocks (like constructors, TODO complete listing of where code is defined).

private int score;

@construct {  
  int temp = 123;
  temp = 42;
}

Diving Into Details#

Define by type#

Each native type can be defined within a code block:

#transition {
  int local;
  local = 42;
  string str = "hello";
}

Note, many types have a default value.

type	default value
bool	false
int	0
long	0L
double	0.0
string	""

TODO: what about lists, arrays, ... etc...

Define via the "let" keyword and type inference#

Instead of leading with the type, you can simply say "let" and allow the translator to precisely infer the type.

#transition {
  let local = 42;
}

readonly keyword#

A local variable can be annotated as readonly, meaning it can not be assigned.

#transition {
  readonly int local = 42;
}

Local Variables & Assignment

Fast Intro#

Diving Into Details#

Define by type#

Define via the "let" keyword and type inference#

readonly keyword#

Math-based Assignment#

Add To (+=)#

Subtract From (-=)#

Multiply By (*=)#

Divide By (/=)#

Mod (%=)#