diff options
Diffstat (limited to 'ruby_2_2/lib/irb/frame.rb')
-rw-r--r-- | ruby_2_2/lib/irb/frame.rb | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/ruby_2_2/lib/irb/frame.rb b/ruby_2_2/lib/irb/frame.rb deleted file mode 100644 index 64dd63dddf..0000000000 --- a/ruby_2_2/lib/irb/frame.rb +++ /dev/null @@ -1,80 +0,0 @@ -# -# frame.rb - -# $Release Version: 0.9$ -# $Revision$ -# 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" - - # Default number of stack frames - INIT_STACK_TIMES = 3 - # Default number of frames offset - CALL_STACK_OFFSET = 3 - - # Creates a new stack frame - def initialize - @frames = [TOPLEVEL_BINDING] * INIT_STACK_TIMES - end - - # Used by Kernel#set_trace_func to register each event in the call stack - def trace_func(event, file, line, id, binding) - case event - when 'call', 'class' - @frames.push binding - when 'return', 'end' - @frames.pop - end - end - - # Returns the +n+ number of frames on the call stack from the last frame - # initialized. - # - # Raises FrameUnderflow if there are no frames in the given stack range. - def top(n = 0) - bind = @frames[-(n + CALL_STACK_OFFSET)] - Fail FrameUnderflow unless bind - bind - end - - # Returns the +n+ number of frames on the call stack from the first frame - # initialized. - # - # Raises FrameOverflow if there are no frames in the given stack range. - def bottom(n = 0) - bind = @frames[n] - Fail FrameOverflow unless bind - bind - end - - # Convenience method for Frame#bottom - def Frame.bottom(n = 0) - @backtrace.bottom(n) - end - - # Convenience method for Frame#top - def Frame.top(n = 0) - @backtrace.top(n) - end - - # Returns the binding context of the caller from the last frame initialized - 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 |