Module: PryInline::CodeExtension

Defined in:
lib/pry-inline/code_extension.rb

Overview

monkey patch for Pry::Code

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.current_bindingObject



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# File 'lib/pry-inline/code_extension.rb', line 6

def self.current_binding
  @current_binding
end

.current_binding=(value) ⇒ Object



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# File 'lib/pry-inline/code_extension.rb', line 10

def self.current_binding=(value)
  @current_binding = value
end

Instance Method Details



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# File 'lib/pry-inline/code_extension.rb', line 14

def print_to_output(output, color = false)
  begin
    not_colorized_output_lines = super('', false).split("\n")
    @lineno_to_variables = Hash.new { |h, k| h[k] = Set.new }
    traverse_sexp(Parser.sexp(@lines.map(&:line).join("\n")))

    current_line = CodeExtension.current_binding.eval('__LINE__') - @lines[0].lineno + 1
    @lineno_to_variables.each do |lineno, variables|
      if lineno >= current_line
        variables.clear
        next
      end
      variables.each do |v|
        next unless @lineno_to_variables.any? do |l, vs|
          l < current_line && l > lineno && vs.include?(v)
        end
        variables.delete(v)
      end
    end

    @lineno_to_variables.each do |lineno, variables|
      next if lineno == 0 || @lines.length <= lineno

      original_width = Unicode.width(not_colorized_output_lines[lineno - 1], true)
      debug_info_width = terminal_width - original_width % terminal_width + 1
      debug_info_width += terminal_width if debug_info_width < min_debug_info_width

      @lines[lineno - 1].tuple[0] +=
        debug_info(variables)
        .slice(0, debug_info_width)
        .split('')
        .map { |c| [c, Unicode.width(c, true)] }
        .reduce([]) { |a, e| a + [[e[0], e[1] + (a.empty? ? 0 : a[-1][1])]] }
        .take_while { |_, w| w < debug_info_width }
        .map(&:first)
        .join
    end
  ensure
    ret = super(output, color)
  end
  ret
end