Class: Opal::BuilderProcessors::Processor

Inherits:
Object
  • Object
show all
Defined in:
opal/lib/opal/builder_processors.rb

Direct Known Subclasses

ERBProcessor, JsProcessor, RubyProcessor

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source, filename, options = {}) ⇒ Processor

Returns a new instance of Processor



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# File 'opal/lib/opal/builder_processors.rb', line 14

def initialize(source, filename, options = {})
  @source, @filename, @options = source, filename, options
  @requires = []
  @required_trees = []
end

Instance Attribute Details

#filename ⇒ Object (readonly)

Returns the value of attribute filename



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# File 'opal/lib/opal/builder_processors.rb', line 19

def filename
  @filename
end

#options ⇒ Object (readonly)

Returns the value of attribute options



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# File 'opal/lib/opal/builder_processors.rb', line 19

def options
  @options
end

#required_trees ⇒ Object (readonly)

Returns the value of attribute required_trees



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# File 'opal/lib/opal/builder_processors.rb', line 19

def required_trees
  @required_trees
end

#requires ⇒ Object (readonly)

Returns the value of attribute requires



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# File 'opal/lib/opal/builder_processors.rb', line 19

def requires
  @requires
end

#source ⇒ Object (readonly)

Returns the value of attribute source



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# File 'opal/lib/opal/builder_processors.rb', line 19

def source
  @source
end

Class Method Details

.extensions ⇒ Object 



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# File 'opal/lib/opal/builder_processors.rb', line 33

def self.extensions
  @extensions
end

.handles(*extensions) ⇒ Object 



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# File 'opal/lib/opal/builder_processors.rb', line 25

def self.handles(*extensions)
  @extensions = extensions
  matches = extensions.join('|')
  matches = "(#{matches})" if extensions.size == 1

  @match_regexp = Regexp.new "\\.#{matches}$"
end

.inherited(processor) ⇒ Object 



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# File 'opal/lib/opal/builder_processors.rb', line 10

def self.inherited(processor)
  DEFAULT_PROCESSORS << processor
end

.match?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'opal/lib/opal/builder_processors.rb', line 37

def self.match? other
  (other.is_a?(String) and other.match(match_regexp))
end

.match_regexp ⇒ Object 



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# File 'opal/lib/opal/builder_processors.rb', line 41

def self.match_regexp
  @match_regexp or raise NotImplementedError
end

Instance Method Details

#mark_as_required(filename) ⇒ Object 



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# File 'opal/lib/opal/builder_processors.rb', line 64

def mark_as_required(filename)
  "Opal.mark_as_loaded(Opal.normalize_loadable_path(#{filename.to_s.inspect}));"
end

#source_map ⇒ Object 



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# File 'opal/lib/opal/builder_processors.rb', line 45

def source_map
  @source_map ||= begin
    mappings = []
    source_file = filename+'.js'
    line = source.count("\n")
    column = source.scan("\n[^\n]*$").size
    offset = ::SourceMap::Offset.new(line, column)
    mappings << ::SourceMap::Mapping.new(source_file, offset, offset)

    # Ensure mappings isn't empty: https://github.com/maccman/sourcemap/issues/11
    unless mappings.any?
      zero_offset = ::SourceMap::Offset.new(0,0)
      mappings = [::SourceMap::Mapping.new(source_file,zero_offset,zero_offset)]
    end

    ::SourceMap::Map.new(mappings)
  end
end

#to_s ⇒ Object 



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# File 'opal/lib/opal/builder_processors.rb', line 21

def to_s
  source.to_s
end