Class: IRB::Frame
- Extended by:
- Exception2MessageMapper
- Defined in:
- lib/irb/frame.rb
Constant Summary collapse
- INIT_STACK_TIMES =
3
- CALL_STACK_OFFSET =
3
Class Method Summary collapse
-
.bottom(n = 0) ⇒ Object
singleton functions.
- .sender ⇒ Object
- .top(n = 0) ⇒ Object
Instance Method Summary collapse
- #bottom(n = 0) ⇒ Object
-
#initialize ⇒ Frame
constructor
A new instance of Frame.
- #top(n = 0) ⇒ Object
- #trace_func(event, file, line, id, binding) ⇒ Object
Constructor Details
#initialize ⇒ Frame
Returns a new instance of Frame.
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# File 'lib/irb/frame.rb', line 24 def initialize @frames = [TOPLEVEL_BINDING] * INIT_STACK_TIMES end |
Class Method Details
.bottom(n = 0) ⇒ Object
singleton functions
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# File 'lib/irb/frame.rb', line 50 def Frame.bottom(n = 0) @backtrace.bottom(n) end |
Instance Method Details
#bottom(n = 0) ⇒ Object
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# File 'lib/irb/frame.rb', line 43 def bottom(n = 0) bind = @frames[n] Fail FrameOverflow unless bind bind end |
#top(n = 0) ⇒ Object
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# File 'lib/irb/frame.rb', line 37 def top(n = 0) bind = @frames[-(n + CALL_STACK_OFFSET)] Fail FrameUnderflow unless bind bind end |
#trace_func(event, file, line, id, binding) ⇒ Object
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# File 'lib/irb/frame.rb', line 28 def trace_func(event, file, line, id, binding) case event when 'call', 'class' @frames.push binding when 'return', 'end' @frames.pop end end |