---
name: "Class::MakeMethods::Emulator::Struct"
section: "3pm"
platform: "linux"
package: "libclass-makemethods-perl"
version: "1.01-7"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Class::MakeMethods::Emulator::Struct"
---

# Class::MakeMethods::Emulator::Struct(3pm)

Emulate Class::Struct

## NAME

Class::MakeMethods::Emulator::Struct - Emulate Class::Struct

## SYNOPSIS

```
  use Class::MakeMethods::Emulator::Struct;

  struct (
      simple  => '$',
      ordered => '@',
      mapping => '%',
      obj_ref => 'FooObject'
  );
```

## DESCRIPTION

This module emulates the functionality of Class::Struct by munging the provided field-declaration arguments to match those expected by Class::MakeMethods.

It supports the same four types of accessors, the choice of array-based or hash-based objects, and the choice of installing methods in the current package or a specified target.

## EXAMPLE

The below three declarations create equivalent methods for a simple hash-based class with a constructor and four accessors.

```
  use Class::Struct;
  struct (
      simple  => '$',
      ordered => '@',
      mapping => '%',
      obj_ref => 'FooObject'
  );

  use Class::MakeMethods::Emulator::Struct;
  struct (
      simple  => '$',
      ordered => '@',
      mapping => '%',
      obj_ref => 'FooObject'
    );

  use Class::MakeMethods (
      -MakerClass               => 'Standard::Array',
      'new'                     => 'new',
      'scalar'                  => 'simple',
      'array -auto_init 1'      => 'ordered',
      'hash -auto_init 1'       => 'mapping',
      'object -auto_init 1'     => '-class FooObject obj_ref'
    );
```

## COMPATIBILITY

This module aims to offer a "95% compatible" drop-in replacement for the core Class::Struct module for purposes of comparison and code migration.

The `"class-struct.t"` test for the core Class::Struct module is included with this package. The test is unchanged except for the a direct substitution of this emulator's name in the place of the core module.

However, there are numerous internal differences between the methods generated by the original Class::Struct and this emulator, and some existing code may not work correctly without modification.

## SEE ALSO

See Class::MakeMethods for general information about this distribution.

See Class::MakeMethods::Emulator for more about this family of subclasses.

See Class::Struct for documentation of the original module.

See Class::MakeMethods::Standard::Hash and Class::MakeMethods::Standard::Array for documentation of the created methods.