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proc
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thread-self
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root
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proc
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self
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root
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opt
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alt
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ruby18
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lib64
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ruby
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1.8
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irb
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files >> //proc/thread-self/root/proc/self/root/opt/alt/ruby18/lib64/ruby/1.8/irb/frame.rb
# # frame.rb - # $Release Version: 0.9$ # $Revision: 11708 $ # $Date: 2007-02-13 08:01:19 +0900 (Tue, 13 Feb 2007) $ # by Keiju ISHITSUKA(Nihon Rational Software Co.,Ltd) # # -- # # # require "e2mmap" module IRB class Frame extend Exception2MessageMapper def_exception :FrameOverflow, "frame overflow" def_exception :FrameUnderflow, "frame underflow" INIT_STACK_TIMES = 3 CALL_STACK_OFFSET = 3 def initialize @frames = [TOPLEVEL_BINDING] * INIT_STACK_TIMES end def trace_func(event, file, line, id, binding) case event when 'call', 'class' @frames.push binding when 'return', 'end' @frames.pop end end def top(n = 0) bind = @frames[-(n + CALL_STACK_OFFSET)] Fail FrameUnderflow unless bind bind end def bottom(n = 0) bind = @frames[n] Fail FrameOverflow unless bind bind end # singleton functions def Frame.bottom(n = 0) @backtrace.bottom(n) end def Frame.top(n = 0) @backtrace.top(n) end def Frame.sender eval "self", @backtrace.top end @backtrace = Frame.new set_trace_func proc{|event, file, line, id, binding, klass| @backtrace.trace_func(event, file, line, id, binding) } end end
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