sourcemap.litcoffee

class LineMapconstructor:(@line) -\>@columns = []

  add:(column, [sourceLine, sourceColumn], options={}) -\>returnif@columns[column]andoptions.noReplace
    @columns[column] = {line: @line, column, sourceLine, sourceColumn}

  sourceLocation:(column) -\>column--until(mapping = @columns[column])or(column <=0)
    mappingand[mapping.sourceLine, mapping.sourceColumn]