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# frozen_string_literal: true
require_relative "helpers/file"
require_relative "setting"
module Byebug
#
# Formats specific line ranges in a source file
#
class SourceFileFormatter
include Helpers::FileHelper
attr_reader :file, :annotator
def initialize(file, annotator)
@file = file
@annotator = annotator
end
def lines(min, max)
File.foreach(file).with_index.map do |line, lineno|
next unless (min..max).cover?(lineno + 1)
format(
"%<annotation>s %<lineno>#{max.to_s.size}d: %<source>s",
annotation: annotator.call(lineno + 1),
lineno: lineno + 1,
source: line
)
end
end
def lines_around(center)
lines(*range_around(center))
end
def range_around(center)
range_from(center - size / 2)
end
def range_from(min)
first = amend_initial(min)
[first, first + size - 1]
end
def amend_initial(line)
amend(line, max_initial_line)
end
def amend_final(line)
amend(line, max_line)
end
def max_initial_line
max_line - size + 1
end
def max_line
@max_line ||= n_lines(file)
end
def size
[Setting[:listsize], max_line].min
end
def amend(line, ceiling)
[ceiling, [1, line].max].min
end
end
end
|
