Class: Sass::Tree::IfNode

Inherits:

Node

• Object
• Node
• Sass::Tree::IfNode

show all

Defined in:

/var/www/sass-pages/.haml/lib/sass/tree/if_node.rb

Overview

Instance Attribute Summary

• - (IfNode) else The next IfNode in the if-else list, or nil.

Instance Method Summary

• - (Array<Tree::Node>) _perform(environment) protected Runs the child nodes if the conditional expression is true; otherwise, tries the #else nodes.
• - add_else(node) Append an @else node to the end of the list.
• - (IfNode) initialize(expr) constructor A new instance of IfNode.
• - (Boolean, String) invalid_child?(child) protected Returns an error message if the given child node is invalid, and false otherwise.
• - options(options)
• - to_src(tabs, opts, fmt, is_else = false) protected

Methods inherited from Node

#<<, #==, #_cssize, #_to_s, #balance, #check_child!, #children_to_src, #cssize, #cssize!, #dasherize, #do_extend, #each, #invisible?, #perform, #perform!, #perform_children, #run_interp, #selector_to_sass, #selector_to_scss, #selector_to_src, #semi, #style, #to_s, #to_sass, #to_scss

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# File '/var/www/sass-pages/.haml/lib/sass/tree/if_node.rb', line 19

def initialize(expr)
  @expr = expr
  @last_else = self
  super()
end

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# File '/var/www/sass-pages/.haml/lib/sass/tree/if_node.rb', line 15

def else
  @else
end

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# File '/var/www/sass-pages/.haml/lib/sass/tree/if_node.rb', line 62

def _perform(environment)
  environment = Sass::Environment.new(environment)
  return perform_children(environment) if @expr.nil? || @expr.perform(environment).to_bool
  return @else.perform(environment) if @else
  []
end

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# File '/var/www/sass-pages/.haml/lib/sass/tree/if_node.rb', line 28

def add_else(node)
  @last_else.else = node
  @last_else = node
end

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# File '/var/www/sass-pages/.haml/lib/sass/tree/if_node.rb', line 77

def invalid_child?(child)
  super unless child.is_a?(ExtendNode)
end

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# File '/var/www/sass-pages/.haml/lib/sass/tree/if_node.rb', line 34

def options=(options)
  super
  self.else.options = options if self.else
end

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# File '/var/www/sass-pages/.haml/lib/sass/tree/if_node.rb', line 42

def to_src(tabs, opts, fmt, is_else = false)
  name =
    if !is_else; "if"
    elsif @expr; "else if"
    else; "else"
    end
  str = "#{'  ' * tabs}@#{name}"
  str << " #{@expr.to_sass(opts)}" if @expr
  str << children_to_src(tabs, opts, fmt)
  str << @else.send(:to_src, tabs, opts, fmt, true) if @else
  str
end