Class: TSJSON::Source

Inherits:
Object
  • Object
show all
Defined in:
lib/language/source.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(body, name = 'TSJSON Source', locationOffset = { line: 1, column: 1 }) ⇒ Source

Returns a new instance of Source.



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# File 'lib/language/source.rb', line 5

def initialize(
  body, name = 'TSJSON Source', locationOffset = { line: 1, column: 1 }
)
  self.body = body
  self.name = name
  self.locationOffset = locationOffset
end

Instance Attribute Details

#body ⇒ Object

Returns the value of attribute body.



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# File 'lib/language/source.rb', line 3

def body
  @body
end

#locationOffset ⇒ Object

Returns the value of attribute locationOffset.



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# File 'lib/language/source.rb', line 3

def locationOffset
  @locationOffset
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/language/source.rb', line 3

def name
  @name
end

Class Method Details

.leftPad(len, str) ⇒ Object 



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# File 'lib/language/source.rb', line 84

def self.leftPad(len, str)
  return whitespace(len - str.length) + str
end

.print_location(location) ⇒ Object 



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# File 'lib/language/source.rb', line 13

def self.print_location(location)
  return(
    print_source_location(
      location.source,
      Location.get_location(location.source, location.start)
    )
  )
end

.print_prefixed_lines(lines) ⇒ Object 



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# File 'lib/language/source.rb', line 88

def self.print_prefixed_lines(lines)
  existingLines =
    lines.filter do |line_arr|
      _, line = line_arr
      line != nil
    end

  padLen =
    existingLines.map do |prefix_arr|
      prefix = prefix_arr[0]
      prefix.length
    end.max

  return(
    existingLines.map do |line_arr|
      prefix, line = line_arr
      leftPad(padLen, prefix) + (line.empty? ? ' |' : ' | ' + line)
    end.join("\n")
  )
end

.print_source_location(source, sourceLocation) ⇒ Object 



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# File 'lib/language/source.rb', line 22

def self.print_source_location(source, sourceLocation)
  firstLineColumnOffset = source.locationOffset[:column] - 1
  body = whitespace(firstLineColumnOffset) + source.body

  lineIndex = sourceLocation[:line] - 1
  lineOffset = source.locationOffset[:line] - 1
  lineNum = sourceLocation[:line] + lineOffset

  columnOffset = sourceLocation[:line] === 1 ? firstLineColumnOffset : 0
  columnNum = sourceLocation[:column] + columnOffset
  locationStr = "#{source.name}:#{lineNum}:#{columnNum}\n"

  lines = body.split("\n", -1)
  locationLine = lines[lineIndex]

  # Special case for minified documents
  if (locationLine.length > 120)
    subLineIndex = Math.floor(columnNum / 80)
    subLineColumnNum = columnNum % 80
    subLines = []

    i = 0
    loop do
      break unless i < locationLine.length
      subLines.push(locationLine.slice(i, 80))
      i += 80
    end

    return(
      locationStr +
        print_prefixed_lines(
          [["#{lineNum}", subLines[0]]].concat(
            subLines.slice(1, subLineIndex + 1).map do |subLine|
              ['', subLine]
            end
          ).concat(
            [
              [' ', whitespace(subLineColumnNum - 1) + '^'],
              ['', subLines[subLineIndex + 1]]
            ]
          )
        )
    )
  end

  return(
    locationStr +
      print_prefixed_lines(
        [
          ["#{lineNum - 1}", lineIndex > 1 ? lines[lineIndex - 1] : nil],
          ["#{lineNum}", locationLine],
          ['', whitespace(columnNum - 1) + '^'],
          ["#{lineNum + 1}", lines[lineIndex + 1]]
        ]
      )
  )
end

.whitespace(len) ⇒ Object 



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# File 'lib/language/source.rb', line 80

def self.whitespace(len)
  return Array.new(len + 1, '').join(' ')
end