ruby/lib/reline/general_io.rb
Stan Lo 7c226291d3 [ruby/reline] Remove Timeout usage
(https://github.com/ruby/reline/pull/580)

Timeout's implementation relies on Thread, which would conflict with
`ruby/debug`'s thread-freezing implementation and has casued issues like

- ruby/debug#877
- ruby/debug#934
- ruby/debug#1000

This commit avoids the issue by completely removing the use of Timeout.

d4f0cd3fe1
2023-08-20 10:40:55 +00:00

112 lines
1.5 KiB
Ruby

require 'io/wait'
class Reline::GeneralIO
def self.reset(encoding: nil)
@@pasting = false
@@encoding = encoding
end
def self.encoding
if defined?(@@encoding)
@@encoding
elsif RUBY_PLATFORM =~ /mswin|mingw/
Encoding::UTF_8
else
Encoding::default_external
end
end
def self.win?
false
end
def self.set_default_key_bindings(_)
end
@@buf = []
@@input = STDIN
def self.input=(val)
@@input = val
end
def self.with_raw_input
yield
end
def self.getc(_timeout_second)
unless @@buf.empty?
return @@buf.shift
end
c = nil
loop do
result = @@input.wait_readable(0.1)
next if result.nil?
c = @@input.read(1)
break
end
c&.ord
end
def self.ungetc(c)
@@buf.unshift(c)
end
def self.get_screen_size
[1, 1]
end
def self.cursor_pos
Reline::CursorPos.new(1, 1)
end
def self.hide_cursor
end
def self.show_cursor
end
def self.move_cursor_column(val)
end
def self.move_cursor_up(val)
end
def self.move_cursor_down(val)
end
def self.erase_after_cursor
end
def self.scroll_down(val)
end
def self.clear_screen
end
def self.set_screen_size(rows, columns)
end
def self.set_winch_handler(&handler)
end
@@pasting = false
def self.in_pasting?
@@pasting
end
def self.start_pasting
@@pasting = true
end
def self.finish_pasting
@@pasting = false
end
def self.prep
end
def self.deprep(otio)
end
end