Class: Sass::Script::Funcall

Inherits:
Node show all
Defined in:
/var/www/haml-pages/.haml/lib/sass/script/funcall.rb

Overview

A SassScript parse node representing a function call.

A function call either calls one of the functions in Script::Functions, or if no function with the given name exists it returns a string representation of the function call.

Instance Attribute Summary

Instance Method Summary

Methods inherited from Node

#dasherize, #perform

Constructor Details

- (Funcall) initialize(name, args)

A new instance of Funcall

Parameters:



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# File '/var/www/haml-pages/.haml/lib/sass/script/funcall.rb', line 31

def initialize(name, args)
  @name = name
  @args = args
  super()
end

Instance Attribute Details

- (Array<Script::Node>) args (readonly)

The arguments to the function.

Returns:



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# File '/var/www/haml-pages/.haml/lib/sass/script/funcall.rb', line 18

def args
  @args
end

- (String) name (readonly)

The name of the function.

Returns:



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# File '/var/www/haml-pages/.haml/lib/sass/script/funcall.rb', line 13

def name
  @name
end

Instance Method Details

- (Literal) _perform(environment) (protected)

Evaluates the function call.

Parameters:

  • (Sass::Environment) environment — The environment in which to evaluate the SassScript

Returns:

  • (Literal) — The SassScript object that is the value of the function call

Raises:



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

def _perform(environment)
  args = self.args.map {|a| a.perform(environment)}
  ruby_name = name.gsub('-', '_')
  unless Haml::Util.has?(:public_instance_method, Functions, ruby_name) && ruby_name !~ /^__/
    return Script::String.new("#{name}(#{args.map {|a| a.perform(environment)}.join(', ')})")
  end

  result = Functions::EvaluationContext.new(environment.options).send(ruby_name, *args)
  result.options = environment.options
  return result
rescue ArgumentError => e
  raise e unless e.backtrace.any? {|t| t =~ /:in `(block in )?(#{name}|perform)'$/}
  raise Sass::SyntaxError.new("#{e.message} for `#{name}'")
end

- (Array<Node>) children

Returns the arguments to the function.

Returns:

See Also:



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# File '/var/www/haml-pages/.haml/lib/sass/script/funcall.rb', line 51

def children
  @args
end

- context=(context)

Don’t set the context for child nodes if this is url(), since url() allows quoted strings.

Parameters:

  • (Symbol) context

See Also:



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# File '/var/www/haml-pages/.haml/lib/sass/script/funcall.rb', line 25

def context=(context)
  super unless @name == "url"
end

- (String) inspect

A string representation of the function call

Returns:

  • (String) — A string representation of the function call


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# File '/var/www/haml-pages/.haml/lib/sass/script/funcall.rb', line 38

def inspect
  "#{name}(#{args.map {|a| a.inspect}.join(', ')})"
end

- to_sass(opts = {})

See Also:



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# File '/var/www/haml-pages/.haml/lib/sass/script/funcall.rb', line 43

def to_sass(opts = {})
  "#{dasherize(name, opts)}(#{args.map {|a| a.to_sass(opts)}.join(', ')})"
end