component argument

[amitu]

Like we have module arguments, we can also create component argument, so one can pass a component constructor to another component:

Say we have a component:

-- component button:
caption title:

.. body omitted ..

-- end: button

And we are creating a component that uses a button:

-- component header:
component button: button

-- header.button: hello

-- end: header

Now header needs an button argument, so I can do this:

-- component my-button:
caption title:

-- end: my-button

-- header:
button: my-button

I am passing my-button to header as button, so it must have the same signature as button defined earlier (compiler will verify that).