Class: Opal::SourceMap

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# File 'opal/lib/opal/source_map.rb', line 9
def initialize(fragments, file)
 @fragments = fragments
 @file = file
end

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# File 'opal/lib/opal/source_map.rb', line 7
def file
 @file
end

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# File 'opal/lib/opal/source_map.rb', line 6
def fragments
 @fragments
end

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# File 'opal/lib/opal/source_map.rb', line 58
def as_json
 map.as_json
end

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# File 'opal/lib/opal/source_map.rb', line 66
def magic_comment map_path
 "\n//# sourceMappingURL=file://#{map_path}"
end

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# File 'opal/lib/opal/source_map.rb', line 14
def map
 @map ||= begin
 source_file = file+'.rb'
 generated_line, generated_column = 1, 0
 mappings = @fragments.map do |fragment|
 mapping = nil
 source_line = fragment.line
 source_column = fragment.column
 source_code = fragment.code
 if source_line and source_column
 source_offset = ::SourceMap::Offset.new(source_line, source_column)
 generated_offset = ::SourceMap::Offset.new(generated_line, generated_column)
 mapping = ::SourceMap::Mapping.new(
 source_file,
 generated_offset,
 source_offset
 )
 end
 new_lines = source_code.count "\n"
 generated_line += new_lines
 if new_lines > 0
 generated_column = source_code.size - (source_code.rindex("\n") + 1)
 else
 generated_column += source_code.size
 end
 mapping
 end
 # 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.compact)
 end
end

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# File 'opal/lib/opal/source_map.rb', line 62
def to_s
 map.to_s
end