Class: CLIntegracon::LazyString

Inherits:

Object

• Object
• CLIntegracon::LazyString

Defined in:

lib/CLIntegracon/formatter.rb

Overview

A LazyString is constructed by a block, but only evaluated when needed

Instance Attribute Summary

• #proc ⇒ Proc readonly

  The closure which will be used to build the string.

Instance Method Summary

• #initialize(&block) ⇒ LazyString constructor

  Initialize a LazyString.

• #to_str ⇒ String (also: #to_s)

  Calls the underlying proc to build the string.

Constructor Details

#initialize(&block) ⇒ LazyString

Initialize a LazyString

Parameters:

• (String)] (Block () -) —

  block the block which returns a string, called by #to_s

# File 'lib/CLIntegracon/formatter.rb', line 17

def initialize(&block)
  @proc = block
end

Instance Attribute Details

#proc ⇒ Proc (readonly)

Returns the closure which will be used to build the string.

Returns:

• (Proc) —

  the closure which will be used to build the string

# File 'lib/CLIntegracon/formatter.rb', line 10

def proc
  @proc
end

Instance Method Details

#to_str ⇒ String Also known as: to_s

Calls the underlying proc to build the string. The result will be memorized, so subsequent calls of this method will not cause that the proc will be called again.

Returns:

• (String)

# File 'lib/CLIntegracon/formatter.rb', line 27

def to_str
  @string ||= proc.call().to_s
end