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Versions: 6
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Stored size: 1.84 KB
Contents
# frozen_string_literal: true
class DebuggerCode
# Represents a line of code. A line of code is a tuple, which consists of a
# line and a line number. A `LOC` object's state (namely, the line
# parameter) can be changed via instance methods. `Pry::Code` heavily uses
# this class.
#
# @api private
# @example
# loc = LOC.new("def example\n :example\nend", 1)
# puts loc.line
# def example
# :example
# end
# #=> nil
#
# loc.indent(3)
# loc.line #=> " def example\n :example\nend"
class LOC
# @return [Array<String, Integer>]
attr_reader :tuple
# @param [String] line The line of code.
# @param [Integer] lineno The position of the +line+.
def initialize(line, lineno)
@tuple = [line.chomp, lineno.to_i]
end
# @return [Boolean]
def ==(other)
other.tuple == tuple
end
def dup
self.class.new(line, lineno)
end
# @return [String]
def line
tuple.first
end
# @return [Integer]
def lineno
tuple.last
end
# Prepends the line number `lineno` to the `line`.
# @param [Integer] max_width
# @return [void]
def add_line_number(max_width = 0)
padded = lineno.to_s.rjust(max_width)
tuple[0] = "#{padded}: #{line}"
end
# Prepends a marker "=>" or an empty marker to the +line+.
#
# @param [Integer] marker_lineno If it is equal to the `lineno`, then
# prepend a hashrocket. Otherwise, an empty marker.
# @return [void]
def add_marker(marker_lineno)
tuple[0] =
if lineno == marker_lineno
" => #{line}".cyan
else
" #{line}"
end
end
# Indents the `line` with +distance+ spaces.
#
# @param [Integer] distance
# @return [void]
def indent(distance)
tuple[0] = "#{' ' * distance}#{line}"
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems