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rescuing IndexError exception in update_input_history method as a workaround for libedit but in ruby 1.8.7

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This commit is contained in:
John Mair 2011-08-11 23:35:04 +12:00
parent d326f2e57a
commit 0c1df619f3
1 changed files with 6 additions and 2 deletions
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6
lib/pry/pry_instance.rb
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@ -342,7 +342,7 @@ class Pry
# Update Pry's internal state after evalling code. # Update Pry's internal state after evalling code.
# This method should not need to be invoked directly. # This method should not need to be invoked directly.
# @param [String] code, The code we just eval'd # @param [String] code The code we just eval'd
def update_input_history(code) def update_input_history(code)
# Always push to the @input_array as the @output_array is always pushed to. # Always push to the @input_array as the @output_array is always pushed to.
@input_array << code @input_array << code
@ -351,7 +351,11 @@ class Pry
Pry.current_line += code.each_line.count Pry.current_line += code.each_line.count
end end
if Readline::HISTORY.size > 0 if Readline::HISTORY.size > 0
begin
last = Readline::HISTORY[-1].strip last = Readline::HISTORY[-1].strip
rescue IndexError
return
end
prev = Readline::HISTORY.size > 1 ? Readline::HISTORY[-2].strip : '' prev = Readline::HISTORY.size > 1 ? Readline::HISTORY[-2].strip : ''
Readline::HISTORY.pop if last && (last.empty? || last == prev) Readline::HISTORY.pop if last && (last.empty? || last == prev)
end end