Class: PrettyPrint::Group

Inherits:
Object show all
Defined in:
opal/stdlib/prettyprint.rb

Overview

The Group class is used for making indentation easier.

While this class does neither the breaking into newlines nor indentation, it is used in a stack (as well as a queue) within PrettyPrint, to group objects.

For information on using groups, see PrettyPrint#group

This class is intended for internal use of the PrettyPrint buffers.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(depth) ⇒ Group

Create a Group object

Arguments:

  • +depth+ - this group's relation to previous groups


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# File 'opal/stdlib/prettyprint.rb', line 399

def initialize(depth)
  @depth = depth
  @breakables = []
  @break = false
end

Instance Attribute Details

#breakables ⇒ Object (readonly)

Array to hold the Breakable objects for this Group



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# File 'opal/stdlib/prettyprint.rb', line 409

def breakables
  @breakables
end

#depth ⇒ Object (readonly)

This group's relation to previous groups



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# File 'opal/stdlib/prettyprint.rb', line 406

def depth
  @depth
end

Instance Method Details

#break ⇒ Object

Makes a break for this Group, and returns true



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# File 'opal/stdlib/prettyprint.rb', line 412

def break
  @break = true
end

#break? ⇒ Boolean

Boolean of whether this Group has made a break

Returns:



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# File 'opal/stdlib/prettyprint.rb', line 417

def break?
  @break
end

#first? ⇒ Boolean

Boolean of whether this Group has been queried for being first

This is used as a predicate, and ought to be called first.

Returns:



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# File 'opal/stdlib/prettyprint.rb', line 424

def first?
  if defined? @first
    false
  else
    @first = false
    true
  end
end