ivy/doc/sample/Expressions.im

y = 1 + 2 * 3 / 4 * 5 - 6 + 7 multiplyBy:2.
z = w = 2 + 3 multiplyBy:2.
x = (((1 + 2 * 3) multiplyBy:3) add: 5) + 2.
x = ((1 + 2 * 3) multiplyBy:3).
p = 5 multiply(by:3 add:(2 + 1)).
q = 10 squared squared.

p1
    setAge:2 squared squared + 4 squared multiply(by:2 add:4 + 1 * 3)
    in:"mon" + "ths".

M = xz multiply(by:3 add:2) squared.

M = xz multiply(by:3 add:2); squared.

x = OrderedCollection new
	add: 2;
	add: 4;
	add: 6;
	yourself.

age = Person new(name:"John Doe" age:34)
    setAge:144 inUnit:"months";
    ageInMonths.

x = 5.
q = 10 if x > 2.
q = if x > 2 then 10 else 20 end.

cout put:5 multiply(by:5 add:2) if x > 2.

if x > 2 then
	cout put:"Greater"
else
	cout put:"Less"
end

Q = match yz in
	1 => age = age,
	2 => age = age / 12,
	3 => age = age / 365,
	_ => age = 0
end.

while x > 2 do
	cout put:"message"
end

for i in 0 to:100 step:2 do
    cout put:'Count is {i}'
end

cout put:"message" while x > 2.
cout put:'Count is {i}' for i in 0 to:100 step:2.

z = do
    x = 1.
    y = 2.
    ^x + y
end.

class Person
    /**
        every message handler can have one or both of the following:
        - a message name (in this case, 'init')
        - a set of one or more parameters (wrapped in parentheses if the message
          has a name)

        each parameter has an internal name and an (optional) label, specified
        as a pair of identifiers separated by a colon (:). the label comes
        first, and is the name used by whoever is sending the message the
        internal name comes second, and is used by the message handler itself as
        a variable name.

        you can omit the label for a parameter by specifying an underscore (_)
        as the label, but this is not recommended. it looks weird, it obscures
        the meaning of the message, and is really only supported for
        compatibility with lambdas.
    **/
    - init(name:name age:age)
        self::name = name.
        self::age = age!

    - test(param:data _:extra) | cout put:'Received {data}, {extra}'.

    - name | ^self::name.

    - age | ^self::age.

    - ageInMonths | ^self::age * 12.

    - setName:name | self::name = name.

    - setAge:age | self::age = age.

    - setAge:age inUnit:units
        match units in
            #years  => self::age = age,
            #months => self::age = age / 12,
            #days   => self::age = age / 365,
            _       => self::age = 0
        end!

    - getAgeInUnit:units
        ^match units in
            #years  => self::age,
            #months => self::age / 12,
            #days   => self::age / 365,
            _       => 0
        end!
		
	$ exampleProperty | get => self::val, set => self::val = value.

    $ exampleProperty2 |
        get => self::val.

    $ exampleProperty3 | get => 42.

    $ exampleProperty4 (get, set)

    $ exampleProperty5 (get)
end