Expressions

Program: <Chain>;

Chain: <Expression> (';' <Expression>)*;

Expression: <Assignment> | <ArrowFn> | <InlineIf>;

The compiler expects one or more expressions delimited by a ';'. These expressions are evaluated within the root "module". When executing multiple compiled programs in the same virtual machine, the root module will contain declarations from previous programs.

Each expression can be an assignment, an arrow function, or an inline if. The precedence of these operators matches the order they are listed in. For example, these two ways of assigning to my_function are identical:

var my_function = nil;

my_function = n => n * 2 if n > 0;
my_function = (n => (n * 2 if n > 0));

The definition of inline if recurses into the remaining expression types.