Class: DEBUGGER__::Context
- Inherits:
-
Object
- Object
- DEBUGGER__::Context
- Defined in:
- ext/ae-debug/debug1.57.rb
Constant Summary collapse
- DEBUG_LAST_CMD =
[]
Instance Method Summary collapse
- #arcadia_initdbg ⇒ Object
- #arcadia_line_at_to_file(file, line) ⇒ Object
- #arcadia_transfer ⇒ Object
- #break_points ⇒ Object
- #check_break_points(file, klass, pos, binding, id) ⇒ Object
- #check_suspend ⇒ Object
- #clear_suspend ⇒ Object
- #context(th) ⇒ Object
- #debug_command(file, line, id, binding) ⇒ Object
- #debug_eval(str, binding) ⇒ Object
- #debug_funcname(id) ⇒ Object
- #debug_method_info(input, binding) ⇒ Object
- #debug_print_help ⇒ Object
- #debug_silent_eval(str, binding) ⇒ Object
- #debug_variable_info(input, binding) ⇒ Object
- #display ⇒ Object
- #display_expression(exp, binding) ⇒ Object
- #display_expressions(binding) ⇒ Object
- #display_frames(pos) ⇒ Object
- #display_list(b, e, file, line) ⇒ Object
- #excn_handle(file, line, id, binding) ⇒ Object
- #format_frame(pos) ⇒ Object
- #frame_set_pos(file, line) ⇒ Object
-
#initialize ⇒ Context
constructor
A new instance of Context.
- #line_at(file, line) ⇒ Object
- #resume_all ⇒ Object
- #set_last_thread(th) ⇒ Object
- #set_suspend ⇒ Object
- #set_trace(arg) ⇒ Object
- #set_trace_all(arg) ⇒ Object
- #stdout ⇒ Object
- #stop_next(n = 1) ⇒ Object
- #suspend_all ⇒ Object
- #thnum ⇒ Object
- #trace? ⇒ Boolean
- #trace_func(event, file, line, id, binding, klass) ⇒ Object
- #var_list(ary, binding) ⇒ Object
Constructor Details
#initialize ⇒ Context
Returns a new instance of Context.
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# File 'ext/ae-debug/debug1.57.rb', line 82 def initialize arcadia_initdbg if Thread.current == Thread.main @stop_next = 1 else @stop_next = 0 end @last_file = nil @file = nil @line = nil @no_step = nil @frames = [] @finish_pos = 0 @trace = false @catch = "StandardError" @suspend_next = false end |
Instance Method Details
#arcadia_initdbg ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 656 def arcadia_initdbg @arcadia_dbg = { :file => nil, :line => nil, :error_text=> nil, :error_class=> nil, :callers=> nil, :variables=>nil } end |
#arcadia_line_at_to_file(file, line) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 687 def arcadia_line_at_to_file(file, line) @arcadia_dbg[:file]=file @arcadia_dbg[:line]=line end |
#arcadia_transfer ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 666 def arcadia_transfer begin #p "arcadia_transfer \n" #@transfer_file = ArcadiaDebugWrapper.transfer_file @transfer_file = '~transfer-debug-file.tmp' #p 'transfer_file= '+@transfer_file while File.exist?(@transfer_file) && !File.stat(@transfer_file).writable? end if File.exist?(@transfer_file) #File.new(@transfer_file, "w").close File.delete(@transfer_file) end File.open('~'+@transfer_file,"w"){|f| Marshal.dump(@arcadia_dbg,f) } File.rename('~'+@transfer_file,@transfer_file) rescue # .. handle error ensure arcadia_initdbg end end |
#break_points ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 143 def break_points DEBUGGER__.break_points end |
#check_break_points(file, klass, pos, binding, id) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 712 def check_break_points(file, klass, pos, binding, id) return false if break_points.empty? n = 1 for b in break_points if b[0] # valid if b[1] == 0 # breakpoint if (b[2] == file and b[3] == pos) or (klass and b[2] == klass and b[3] == pos) stdout.printf "Breakpoint %d, %s at %s:%s\n", n, debug_funcname(id), file, pos #arcadia_line_at_to_file(file, pos) #arcadia_transfer return true end elsif b[1] == 1 # watchpoint if debug_silent_eval(b[2], binding) stdout.printf "Watchpoint %d, %s at %s:%s\n", n, debug_funcname(id), file, pos return true end end end n += 1 end return false end |
#check_suspend ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 121 def check_suspend return if Thread.critical while (Thread.critical = true; @suspend_next) DEBUGGER__.waiting.push Thread.current @suspend_next = false Thread.stop end Thread.critical = false end |
#clear_suspend ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 109 def clear_suspend @suspend_next = false end |
#context(th) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 151 def context(th) DEBUGGER__.context(th) end |
#debug_command(file, line, id, binding) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 262 def debug_command(file, line, id, binding) MUTEX.lock unless defined?($debugger_restart) and $debugger_restart callcc{|c| $debugger_restart = c} end set_last_thread(Thread.current) frame_pos = 0 binding_file = file binding_line = line previous_line = nil if ENV['EMACS'] stdout.printf "\032\032%s:%d:\n", binding_file, binding_line else stdout.printf "%s:%d:%s", binding_file, binding_line, arcadia_line_at_to_file(file, line) line_at(binding_file, binding_line) end @frames[0] = [binding, file, line, id] display_expressions(binding) arcadia_transfer prompt = true while prompt and input = readline("(rdb:%d) "%thnum(), true) catch(:debug_error) do if input == "" next unless DEBUG_LAST_CMD[0] input = DEBUG_LAST_CMD[0] stdout.print input, "\n" else DEBUG_LAST_CMD[0] = input end case input when /^\s*tr(?:ace)?(?:\s+(on|off))?(?:\s+(all))?$/ if defined?( $2 ) if $1 == 'on' set_trace_all true else set_trace_all false end elsif defined?( $1 ) if $1 == 'on' set_trace true else set_trace false end end if trace? stdout.print "Trace on.\n" else stdout.print "Trace off.\n" end when /^\s*b(?:reak)?\s+(?:(.+):)?([^.:]+)$/ pos = $2 if $1 klass = debug_silent_eval($1, binding) file = $1 end if pos =~ /^\d+$/ pname = pos pos = pos.to_i else pname = pos = pos.intern.id2name end break_points.push [true, 0, klass || file, pos] stdout.printf "Set breakpoint %d at %s:%s\n", break_points.size, klass || file, pname arcadia_transfer when /^\s*b(?:reak)?\s+(.+)[#.]([^.:]+)$/ pos = $2.intern.id2name klass = debug_eval($1, binding) break_points.push [true, 0, klass, pos] stdout.printf "Set breakpoint %d at %s.%s\n", break_points.size, klass, pos when /^\s*wat(?:ch)?\s+(.+)$/ exp = $1 break_points.push [true, 1, exp] stdout.printf "Set watchpoint %d:%s\n", break_points.size, exp when /^\s*b(?:reak)?$/ if break_points.find{|b| b[1] == 0} n = 1 stdout.print "Breakpoints:\n" for b in break_points if b[0] and b[1] == 0 stdout.printf " %d %s:%s\n", n, b[2], b[3] end n += 1 end end if break_points.find{|b| b[1] == 1} n = 1 stdout.print "\n" stdout.print "Watchpoints:\n" for b in break_points if b[0] and b[1] == 1 stdout.printf " %d %s\n", n, b[2] end n += 1 end end if break_points.size == 0 stdout.print "No breakpoints\n" else stdout.print "\n" end when /^\s*del(?:ete)?(?:\s+(\d+))?$/ pos = $1 unless pos input = readline("Clear all breakpoints? (y/n) ", false) if input == "y" for b in break_points b[0] = false end end else pos = pos.to_i if break_points[pos-1] break_points[pos-1][0] = false else stdout.printf "Breakpoint %d is not defined\n", pos end end when /^\s*disp(?:lay)?\s+(.+)$/ exp = $1 display.push [true, exp] stdout.printf "%d: ", display.size display_expression(exp, binding) when /^\s*disp(?:lay)?$/ display_expressions(binding) when /^\s*undisp(?:lay)?(?:\s+(\d+))?$/ pos = $1 unless pos input = readline("Clear all expressions? (y/n) ", false) if input == "y" for d in display d[0] = false end end else pos = pos.to_i if display[pos-1] display[pos-1][0] = false else stdout.printf "Display expression %d is not defined\n", pos end end when /^\s*c(?:ont)?$/ prompt = false when /^\s*s(?:tep)?(?:\s+(\d+))?$/ if $1 lev = $1.to_i else lev = 1 end @stop_next = lev prompt = false when /^\s*n(?:ext)?(?:\s+(\d+))?$/ if $1 lev = $1.to_i else lev = 1 end @stop_next = lev @no_step = @frames.size - frame_pos prompt = false when /^\s*w(?:here)?$/, /^\s*f(?:rame)?$/ display_frames(frame_pos) when /^\s*l(?:ist)?(?:\s+(.+))?$/ if not $1 b = previous_line ? previous_line + 10 : binding_line - 5 e = b + 9 elsif $1 == '-' b = previous_line ? previous_line - 10 : binding_line - 5 e = b + 9 else b, e = $1.split(/[-,]/) if e b = b.to_i e = e.to_i else b = b.to_i - 5 e = b + 9 end end previous_line = b display_list(b, e, binding_file, binding_line) when /^\s*up(?:\s+(\d+))?$/ previous_line = nil if $1 lev = $1.to_i else lev = 1 end frame_pos += lev if frame_pos >= @frames.size frame_pos = @frames.size - 1 stdout.print "At toplevel\n" end binding, binding_file, binding_line = @frames[frame_pos] stdout.print format_frame(frame_pos) when /^\s*down(?:\s+(\d+))?$/ previous_line = nil if $1 lev = $1.to_i else lev = 1 end frame_pos -= lev if frame_pos < 0 frame_pos = 0 stdout.print "At stack bottom\n" end binding, binding_file, binding_line = @frames[frame_pos] stdout.print format_frame(frame_pos) when /^\s*fin(?:ish)?$/ if frame_pos == @frames.size stdout.print "\"finish\" not meaningful in the outermost frame.\n" else @finish_pos = @frames.size - frame_pos frame_pos = 0 prompt = false end when /^\s*cat(?:ch)?(?:\s+(.+))?$/ if $1 excn = $1 if excn == 'off' @catch = nil stdout.print "Clear catchpoint.\n" else @catch = excn stdout.printf "Set catchpoint %s.\n", @catch end else if @catch stdout.printf "Catchpoint %s.\n", @catch else stdout.print "No catchpoint.\n" end end when /^\s*q(?:uit)?$/ input = readline("Really quit? (y/n) ", false) if input == "y" exit! # exit -> exit!: No graceful way to stop threads... end when /^\s*v(?:ar)?\s+/ debug_variable_info($', binding) when /^\s*m(?:ethod)?\s+/ debug_method_info($', binding) when /^\s*th(?:read)?\s+/ if DEBUGGER__.debug_thread_info($', binding) == :cont prompt = false end when /^\s*pp\s+/ PP.pp(debug_eval($', binding), stdout) when /^\s*p\s+/ stdout.printf "%s\n", debug_eval($', binding).inspect when /^\s*r(?:estart)?$/ $debugger_restart.call when /^\s*h(?:elp)?$/ debug_print_help() else v = debug_eval(input, binding) stdout.printf "%s\n", v.inspect end end end MUTEX.unlock resume_all end |
#debug_eval(str, binding) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 163 def debug_eval(str, binding) begin val = eval(str, binding) rescue StandardError, ScriptError => e at = eval("caller(1)", binding) stdout.printf "%s:%s\n", at.shift, e.to_s.sub(/\(eval\):1:(in `.*?':)?/, '') for i in at stdout.printf "\tfrom %s\n", i end throw :debug_error end end |
#debug_funcname(id) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 704 def debug_funcname(id) if id.nil? "toplevel" else id.id2name end end |
#debug_method_info(input, binding) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 218 def debug_method_info(input, binding) case input when /^i(:?nstance)?\s+/ obj = debug_eval($', binding) len = 0 for v in obj.methods.sort len += v.size + 1 if len > 70 len = v.size + 1 stdout.print "\n" end stdout.print v, " " end stdout.print "\n" else obj = debug_eval(input, binding) unless obj.kind_of? Module stdout.print "Should be Class/Module: ", input, "\n" else len = 0 for v in obj.instance_methods(false).sort len += v.size + 1 if len > 70 len = v.size + 1 stdout.print "\n" end stdout.print v, " " end stdout.print "\n" end end end |
#debug_print_help ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 554 def debug_print_help stdout.print <<EOHELP Debugger help v.-0.002b Commands b[reak] [file:|class:]<line|method> b[reak] [class.]<line|method> set breakpoint to some position wat[ch] <expression> set watchpoint to some expression cat[ch] <an Exception> set catchpoint to an exception b[reak] list breakpoints cat[ch] show catchpoint del[ete][ nnn] delete some or all breakpoints disp[lay] <expression> add expression into display expression list undisp[lay][ nnn] delete one particular or all display expressions c[ont] run until program ends or hit breakpoint s[tep][ nnn] step (into methods) one line or till line nnn n[ext][ nnn] go over one line or till line nnn w[here] display frames f[rame] alias for where l[ist][ (-|nn-mm)] list program, - lists backwards nn-mm lists given lines up[ nn] move to higher frame down[ nn] move to lower frame fin[ish] return to outer frame tr[ace] (on|off) set trace mode of current thread tr[ace] (on|off) all set trace mode of all threads q[uit] exit from debugger v[ar] g[lobal] show global variables v[ar] l[ocal] show local variables v[ar] i[nstance] <object> show instance variables of object v[ar] c[onst] <object> show constants of object m[ethod] i[nstance] <obj> show methods of object m[ethod] <class|module> show instance methods of class or module th[read] l[ist] list all threads th[read] c[ur[rent]] show current thread th[read] [sw[itch]] <nnn> switch thread context to nnn th[read] stop <nnn> stop thread nnn th[read] resume <nnn> resume thread nnn p expression evaluate expression and print its value h[elp] print this help <everything else> evaluate EOHELP end |
#debug_silent_eval(str, binding) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 176 def debug_silent_eval(str, binding) begin eval(str, binding) rescue StandardError, ScriptError nil end end |
#debug_variable_info(input, binding) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 196 def debug_variable_info(input, binding) case input when /^\s*g(?:lobal)?\s*$/ var_list(global_variables, binding) when /^\s*l(?:ocal)?\s*$/ var_list(eval("local_variables", binding), binding) when /^\s*i(?:nstance)?\s+/ obj = debug_eval($', binding) var_list(obj.instance_variables, obj.instance_eval{binding()}) when /^\s*c(?:onst(?:ant)?)?\s+/ obj = debug_eval($', binding) unless obj.kind_of? Module stdout.print "Should be Class/Module: ", $', "\n" else var_list(obj.constants, obj.module_eval{binding()}) end end end |
#display ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 147 def display DEBUGGER__.display end |
#display_expression(exp, binding) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 609 def display_expression(exp, binding) stdout.printf "%s = %s\n", exp, debug_silent_eval(exp, binding).to_s end |
#display_expressions(binding) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 598 def display_expressions(binding) n = 1 for d in display if d[0] stdout.printf "%d: ", n display_expression(d[1], binding) end n += 1 end end |
#display_frames(pos) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 620 def display_frames(pos) 0.upto(@frames.size - 1) do |n| if n == pos stdout.print "--> " else stdout.print " " end stdout.print format_frame(n) end end |
#display_list(b, e, file, line) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 637 def display_list(b, e, file, line) stdout.printf "[%d, %d] in %s\n", b, e, file if lines = SCRIPT_LINES__[file] and lines != true n = 0 b.upto(e) do |n| if n > 0 && lines[n-1] if n == line stdout.printf "=> %d %s\n", n, lines[n-1].chomp else stdout.printf " %d %s\n", n, lines[n-1].chomp end end end else stdout.printf "No sourcefile available for %s\n", file end end |
#excn_handle(file, line, id, binding) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 737 def excn_handle(file, line, id, binding) if $!.class <= SystemExit set_trace_func nil exit end if @catch and ($!.class.ancestors.find { |e| e.to_s == @catch }) stdout.printf "%s:%d: `%s' (%s)\n", file, line, $!, $!.class @arcadia_dbg[:error_text] = $!.to_s @arcadia_dbg[:error_class] = $!.class fs = @frames.size tb = caller(0)[-fs..-1] if tb @arcadia_dbg[:callers] = tb for i in tb stdout.printf "\tfrom %s\n", i end end suspend_all debug_command(file, line, id, binding) end end |
#format_frame(pos) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 631 def format_frame(pos) bind, file, line, id = @frames[pos] sprintf "#%d %s:%s%s\n", pos + 1, file, line, (id ? ":in `#{id.id2name}'" : "") end |
#frame_set_pos(file, line) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 613 def frame_set_pos(file, line) if @frames[0] @frames[0][1] = file @frames[0][2] = line end end |
#line_at(file, line) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 693 def line_at(file, line) lines = SCRIPT_LINES__[file] if lines return "\n" if lines == true line = lines[line-1] return "\n" unless line return line end return "\n" end |
#resume_all ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 117 def resume_all DEBUGGER__.resume end |
#set_last_thread(th) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 159 def set_last_thread(th) DEBUGGER__.set_last_thread(th) end |
#set_suspend ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 105 def set_suspend @suspend_next = true end |
#set_trace(arg) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 135 def set_trace(arg) @trace = arg end |
#set_trace_all(arg) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 155 def set_trace_all(arg) DEBUGGER__.set_trace(arg) end |
#stdout ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 139 def stdout DEBUGGER__.stdout end |
#stop_next(n = 1) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 101 def stop_next(n=1) @stop_next = n end |
#suspend_all ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 113 def suspend_all DEBUGGER__.suspend end |
#thnum ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 253 def thnum num = DEBUGGER__.instance_eval{@thread_list[Thread.current]} unless num DEBUGGER__.make_thread_list num = DEBUGGER__.instance_eval{@thread_list[Thread.current]} end num end |
#trace? ⇒ Boolean
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# File 'ext/ae-debug/debug1.57.rb', line 131 def trace? @trace end |
#trace_func(event, file, line, id, binding, klass) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 760 def trace_func(event, file, line, id, binding, klass) Tracer.trace_func(event, file, line, id, binding, klass) if trace? context(Thread.current).check_suspend @file = file @line = line case event when 'line' frame_set_pos(file, line) if !@no_step or @frames.size == @no_step @stop_next -= 1 @stop_next = -1 if @stop_next < 0 elsif @frames.size < @no_step @stop_next = 0 # break here before leaving... else # nothing to do. skipped. end if @stop_next == 0 or check_break_points(file, nil, line, binding, id) @no_step = nil suspend_all debug_command(file, line, id, binding) end when 'call' @frames.unshift [binding, file, line, id] if check_break_points(file, klass, id.id2name, binding, id) suspend_all debug_command(file, line, id, binding) end when 'c-call' frame_set_pos(file, line) when 'class' @frames.unshift [binding, file, line, id] when 'return', 'end' if @frames.size == @finish_pos @stop_next = 1 @finish_pos = 0 end @frames.shift when 'end' @frames.shift when 'raise' excn_handle(file, line, id, binding) end @last_file = file end |
#var_list(ary, binding) ⇒ Object
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# File 'ext/ae-debug/debug1.57.rb', line 184 def var_list(ary, binding) ary.sort! @arcadia_dbg[:variables]=Hash.new for v in ary val = eval(v, binding).inspect @arcadia_dbg[:variables][v]=val stdout.printf " %s => %s\n", v, val end arcadia_transfer end |