Thank you very much for your hint on how to give a parameter to an attribute trait! I did not find an example anywhere in the docs of MooseX::Role::Parameterized.

Now I see that this also does not solve my problem, I am sorry that I forgot an important fact: The value given to the trait is no constant, so it has to be a kind of lazy builder.

So more precisely, I need give an instance value to the trait, something like: 

has rootdir => (
    isa => 'Str',
    is => 'rw',
);
has testdir => (
    traits => ['DirOption'],
    isa => 'Str',
    is => 'rw',
    rootdir => $self->rootDir,
);

[download]
Is this possible?

-maxhq

In reply to Re^2: Moose: Where to define a method required by an attribute trait? by maxhq
in thread Moose: Where to define a method required by an attribute trait? by maxhq

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