Crystal

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Modules

Structures

Enumerations

Mix-ins

Accessor methods

Macros

Modules

Click a class element.
Select the Stereotype tab.
Enter "module" in the Name.

Crystal Example Code

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module Foo

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end

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Structures

Click a class element.
Select the Stereotype tab.
Enter "struct" in the Name.

Crystal Example Code

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struct Foo

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end

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Enumerations

Click a class element.
Select the Stereotype tab.
Enter "enum" in the Name.

Crystal Example Code

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enum Foo

Red

Green

Blue

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end

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Mix-ins

Click a generalization to the module.
Select the Stereotype tab.
Enter Mix-in method in the Name. The following Mix-in methods can be entered. If this Stereotype is not set, it is the same as setting "include".
- include
- extend

Crystal Example Code

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require "./bar"

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class Foo

include Bar

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end

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Accessor methods

Create an operation element with the same name as the instance variable, and click the operation element.
Select the Stereotype tab.
Enter Accessor Method in the Name. The following Accessor Methods can be entered.
- getter
- setter
- property

Crystal Example Code

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class Foo

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@name : string

getter name

def initialize

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end

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end

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Macros

Write macros in the User Code Area - which is an area quoted with “˅” and “˄”.

Crystal Example Code

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macro println(*values)

print {{*values}}, '\n'

end

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class Foo

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macro emphasize(value)

"***#{ {{value}} }***"

end

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def initialize

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end

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end

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Crystal

Contents

Modules

Structures

Enumerations

Mix-ins

Accessor methods

Macros