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NAME

Smart::Args - argument validation for you

SYNOPSIS

  use Smart::Args;

  sub func2 {
    args my $p => 'Int',
         my $q => { isa => 'Int', optional => 1 };
  }
  func2(p => 3, q => 4); # p => 3, q => 4
  func2(p => 3);         # p => 3, q => undef

  sub func3 {
    args my $p => {isa => 'Int', default => 3},
  }
  func3(p => 4); # p => 4
  func3();       # p => 3

  package F;
  use Moose;
  use Smart::Args;

  sub method {
    args my $self,
         my $p => 'Int';
  }
  sub class_method {
    args my $class => 'ClassName',
         my $p => 'Int';
  }

  sub simple_method {
    args_pos my $self, my $p;
  }

  my $f = F->new();
  $f->method(p => 3);

  F->class_method(p => 3);

  F->simple_method(3);

DESCRIPTION

Smart::Args is yet another argument validation library.

This module makes your module more readable, and writable =)

FUNCTIONS

args my $var [, $rule], ...

Checks parameters and fills them into lexical variables. All the parameters are mandatory by default, and unknown parameters (i.e. possibly typos) are reported as void warnings.

The arguments of args() consist of lexical <$var>s and optional $rules.

$vars must be a declaration of a lexical variable.

$rule can be a type name (e.g. Int), a HASH reference (with type, default, and optional), or a type constraint object.

Note that if the first variable is named $class or $self, it is dealt as a method call.

See the SYNOPSIS section for examples.

args_pos my $var[, $rule, ...

Check parameters and fills them into lexical variables. All the parameters are mandatory by default.

The arguments of args() consist of lexical <$var>s and optional $rules. $vars must be a declaration of a lexical variable.

$rule can be a type name (e.g. Int), a HASH reference (with type, default, and optional), or a type constraint object.

Note that if the first variable is named $class or $self, it is dealt as a method call.

See the SYNOPSIS section for examples.

TYPES

The types that Smart::Args uses are type constraints of Mouse. That is, you can define your types in the way Mouse does.

In addition, Smart::Args also allows Moose type constraint objects, so you can use any MooseX::Types::* libraries on CPAN.

Type coercions are automatically tried if validations fail.

See Mouse::Util::TypeConstraints for details.

AUTHOR

Tokuhiro Matsuno <tokuhirom@gmail.com>

SEE ALSO

Params::Validate

LICENSE

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.




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