haml--haml/lib/sass/tree/debug_node.rb

31 lines
726 B
Ruby

module Sass
module Tree
# A dynamic node representing a Sass `@debug` statement.
#
# @see Sass::Tree
class DebugNode < Node
# @param expr [Script::Node] The expression to print
def initialize(expr)
@expr = expr
super()
end
protected
# Prints the expression to STDERR.
#
# @param environment [Sass::Environment] The lexical environment containing
# variable and mixin values
def _perform(environment)
res = @expr.perform(environment)
if filename
STDERR.puts "#{filename}:#{line} DEBUG: #{res}"
else
STDERR.puts "Line #{line} DEBUG: #{res}"
end
[]
end
end
end
end