add extjs 6.0.1 sources

[extjs.git] / extjs / classic / theme-base / sass / overrides.rb

# These overrides add support for variable-exists(), mixin-exists() and function-exists()\r
# to SASS 3.1.7. These functions are added to SASS in 3.3, so when Sencha Cmd is upgraded\r
# to use SASS 3.3 these overrides should be removed.\r
# Some monkey patching was required to get these methods working, specifically, we had to\r
# add the "environment" instance variable to EvaluationContext.  These patches should be\r
# removed when Cmd is upgraded to use SASS 3.3.  Additionally, if Cmd is upgraded to use\r
# SASS 3.2, these patches may need to be updated, because the _perform() method underwent\r
# changes from 3.1 - 3.2\r
\r
# These functions are not currently included in the build.  To use them, add this file\r
# to the ruby path. e.g.\r
# package.sass.rubypath=${package.dir}/sass/utils.rb,${package.dir}/sass/overrides.rb\r
\r
module Sass::Script\r
  class Funcall\r
    def _perform(environment)\r
      args = @args.map {|a| a.perform(environment)}\r
      if fn = environment.function(@name)\r
        keywords = Sass::Util.map_hash(@keywords) {|k, v| [k, v.perform(environment)]}\r
        return perform_sass_fn(fn, args, keywords)\r
      end \r
\r
      ruby_name = @name.tr('-', '_')\r
      args = construct_ruby_args(ruby_name, args, environment)\r
\r
      unless Functions.callable?(ruby_name)\r
        opts(to_literal(args))\r
      else\r
        ###############################################################################\r
        # BEGIN PATCH\r
        ###############################################################################\r
        context = Functions::EvaluationContext.new(environment.options)\r
        context.instance_variable_set('@environment', environment)\r
        opts(context.send(ruby_name, *args))\r
        ###############################################################################\r
        # END PATCH\r
        ###############################################################################\r
      end\r
    rescue ArgumentError => e\r
      raise e unless e.backtrace.any? {|t| t =~ /:in `(block in )?(#{name}|perform)'$/}\r
      raise Sass::SyntaxError.new("#{e.message} for `#{name}'")\r
    end\r
  end\r
\r
  module Functions\r
    ###################################################################################\r
    # BEGIN PATCH\r
    ###################################################################################\r
    class EvaluationContext\r
      attr_reader :environment\r
    end  \r
    ###################################################################################\r
    # END PATCH\r
    ###################################################################################\r
\r
    def variable_exists(variable_name)\r
      if(environment.var(variable_name.value))\r
        Sass::Script::Bool.new(true)\r
      else\r
        Sass::Script::Bool.new(false)\r
      end\r
    end\r
\r
    def mixin_exists(mixin_name)\r
      if(environment.mixin(mixin_name.value))\r
        Sass::Script::Bool.new(true)\r
      else\r
        Sass::Script::Bool.new(false)\r
      end\r
    end\r
\r
    def function_exists(function_name)\r
      if(environment.function(function_name.value))\r
        Sass::Script::Bool.new(true)\r
      else\r
        Sass::Script::Bool.new(false)\r
      end\r
    end\r
  end\r
end\r
\r