mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
a1530c751e
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_3@499 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
332 lines
7.2 KiB
Ruby
332 lines
7.2 KiB
Ruby
class DEBUGGER__
|
|
trap("INT") { DEBUGGER__::CONTEXT.interrupt }
|
|
$DEBUG = true
|
|
def initialize
|
|
@break_points = []
|
|
@stop_next = 1
|
|
@frames = [nil]
|
|
@last_file = nil
|
|
@last = [nil, nil]
|
|
@scripts = {}
|
|
end
|
|
|
|
DEBUG_LAST_CMD = []
|
|
|
|
def interrupt
|
|
@stop_next = 1
|
|
end
|
|
|
|
def debug_eval(str, binding)
|
|
begin
|
|
val = eval(str, binding)
|
|
val
|
|
rescue
|
|
at = caller(0)
|
|
STDOUT.printf "%s:%s\n", at.shift, $!
|
|
for i in at
|
|
break if i =~ /`debug_(eval|command)'$/ #`
|
|
STDOUT.printf "\tfrom %s\n", i
|
|
end
|
|
end
|
|
end
|
|
|
|
def debug_command(file, line, id, binding)
|
|
frame_pos = 0
|
|
binding_file = file
|
|
binding_line = line
|
|
previus_line = nil
|
|
if (ENV['EMACS'] == 't')
|
|
STDOUT.printf "\032\032%s:%d:\n", binding_file, binding_line
|
|
else
|
|
STDOUT.printf "%s:%d:%s", binding_file, binding_line,
|
|
line_at(binding_file, binding_line)
|
|
end
|
|
@frames[0] = binding
|
|
STDOUT.print "(rdb:-) "
|
|
STDOUT.flush
|
|
while input = STDIN.gets
|
|
input.chop!
|
|
if input == ""
|
|
input = DEBUG_LAST_CMD[0]
|
|
else
|
|
DEBUG_LAST_CMD[0] = input
|
|
end
|
|
|
|
case input
|
|
when /^b(?:reak)?\s+((?:[^:\n]+:)?.+)/
|
|
pos = $1
|
|
if pos.index ":"
|
|
file, pos = pos.split(":")
|
|
end
|
|
file = File.basename(file)
|
|
if pos =~ /^\d+$/
|
|
pname = pos
|
|
pos = Integer(pos)
|
|
else
|
|
pname = pos = pos.intern.id2name
|
|
end
|
|
STDOUT.printf "Set breakpoint %d at %s:%s\n", @break_points.size, file,
|
|
pname
|
|
@break_points.push [file, pos]
|
|
|
|
when /^b(?:reak)?$/, /^i(?:nfo) b(?:reak)?$/
|
|
n = 0
|
|
for f, p in @break_points
|
|
STDOUT.printf "%d %s:%s\n", n, f, p
|
|
n += 1
|
|
end
|
|
|
|
when /^del(?:ete)?(?:\s+(\d+))?$/
|
|
pos = $1
|
|
unless pos
|
|
STDOUT.print "clear all breakpoints? (y/n) "
|
|
STDOUT.flush
|
|
input = STDIN.gets.chop!
|
|
if input == "y"
|
|
for n in @break_points.indexes
|
|
@break_points[n] = nil
|
|
end
|
|
end
|
|
else
|
|
pos = Integer(pos)
|
|
if @break_points[pos]
|
|
bp = @break_points[pos]
|
|
STDOUT.printf "Clear breakpoint %d at %s:%s\n", pos, bp[0], bp[1]
|
|
@break_points[pos] = nil
|
|
else
|
|
STDOUT.printf "Breakpoint %d is not defined\n", pos
|
|
end
|
|
end
|
|
|
|
when /^c(?:ont)?$/
|
|
return
|
|
|
|
when /^s(?:tep)?\s*(\d+)?$/
|
|
if $1
|
|
lev = Integer($1)
|
|
else
|
|
lev = 1
|
|
end
|
|
@stop_next = lev
|
|
return
|
|
|
|
when /^n(?:ext)?\s*(\d+)?$/
|
|
if $1
|
|
lev = Integer($1)
|
|
else
|
|
lev = 1
|
|
end
|
|
@stop_next = lev
|
|
@no_step = @frames.size - frame_pos
|
|
return
|
|
|
|
when /^w(?:here)?$/, /^f(?:rame)?$/
|
|
at = caller(0)
|
|
0.upto( @frames.size - 1 ) do |n|
|
|
if ( frame_pos == n )
|
|
STDOUT.printf "--> #%d %s\n", n, at[-(@frames.size - n)]
|
|
else
|
|
STDOUT.printf " #%d %s\n", n, at[-(@frames.size - n)]
|
|
end
|
|
end
|
|
|
|
when /^l(?:ist)?(?:\s+(.+))?$/
|
|
if !$1
|
|
b = previus_line ? previus_line + 10 : binding_line - 5
|
|
e = b + 9
|
|
elsif $1 == '-'
|
|
b = previus_line ? previus_line - 10 : binding_line - 5
|
|
e = b + 9
|
|
else
|
|
b, e = $1.split(/[-,]/)
|
|
if e
|
|
b = Integer(b)
|
|
e = Integer(e)
|
|
else
|
|
b = Integer(b) - 5
|
|
e = b + 9
|
|
end
|
|
end
|
|
previus_line = b
|
|
STDOUT.printf "[%d, %d] in %s\n", b, e, binding_file
|
|
line_at(binding_file, binding_line)
|
|
if lines = @scripts[binding_file] and lines != true
|
|
n = 0
|
|
b.upto(e) do |n|
|
|
if n > 0 && lines[n-1]
|
|
if ( n == binding_line )
|
|
STDOUT.printf "=> %d %s\n", n, lines[n-1].chomp
|
|
else
|
|
STDOUT.printf " %d %s\n", n, lines[n-1].chomp
|
|
end
|
|
end
|
|
end
|
|
else
|
|
STDOUT.printf "no sourcefile available for %s\n", binding_file
|
|
end
|
|
|
|
when /^up\s*(\d+)?$/
|
|
previus_line = nil
|
|
if $1
|
|
lev = Integer($1)
|
|
else
|
|
lev = 1
|
|
end
|
|
frame_pos += lev
|
|
if frame_pos >= @frames.size
|
|
frame_pos = @frames.size - 1
|
|
STDOUT.print "at toplevel\n"
|
|
end
|
|
binding = @frames[frame_pos]
|
|
info, binding_file, binding_line = frame_info(frame_pos)
|
|
STDOUT.printf "#%d %s\n", frame_pos, info
|
|
|
|
when /^down\s*(\d+)?$/
|
|
previus_line = nil
|
|
if $1
|
|
lev = Integer($1)
|
|
else
|
|
lev = 1
|
|
end
|
|
frame_pos -= lev
|
|
if frame_pos < 0
|
|
frame_pos = 0
|
|
STDOUT.print "at stack bottom\n"
|
|
end
|
|
binding = @frames[frame_pos]
|
|
info, binding_file, binding_line = frame_info(frame_pos)
|
|
STDOUT.printf "#%d %s\n", frame_pos, info
|
|
|
|
when /^fi(?:nish)?$/
|
|
@finish_pos = @frames.size - frame_pos
|
|
frame_pos = 0
|
|
return
|
|
|
|
when /^q(?:uit)?$/
|
|
STDOUT.print "really quit? (y/n) "
|
|
STDOUT.flush
|
|
input = STDIN.gets.chop!
|
|
exit if input == "y"
|
|
|
|
when /^p\s+/
|
|
p debug_eval($', binding)
|
|
|
|
else
|
|
v = debug_eval(input, binding)
|
|
p v unless v == nil
|
|
end
|
|
STDOUT.print "(rdb:-) "
|
|
STDOUT.flush
|
|
end
|
|
end
|
|
|
|
def frame_info(pos = 0)
|
|
info = caller(0)[-(@frames.size - pos)]
|
|
info.sub( /:in `.*'$/, '' ) =~ /^(.*):(\d+)$/ #`
|
|
[info, $1, $2.to_i]
|
|
end
|
|
|
|
def line_at(file, line)
|
|
lines = @scripts[file]
|
|
if lines
|
|
return "\n" if lines == true
|
|
line = lines[line-1]
|
|
return "\n" unless line
|
|
return line
|
|
end
|
|
save = $DEBUG
|
|
begin
|
|
$DEBUG = false
|
|
f = open(file)
|
|
lines = @scripts[file] = f.readlines
|
|
rescue
|
|
$DEBUG = save
|
|
@scripts[file] = true
|
|
return "\n"
|
|
end
|
|
line = lines[line-1]
|
|
return "\n" unless line
|
|
return line
|
|
end
|
|
|
|
def debug_funcname(id)
|
|
if id == 0
|
|
"toplevel"
|
|
else
|
|
id.id2name
|
|
end
|
|
end
|
|
|
|
def check_break_points(file, pos, binding, id)
|
|
file = File.basename(file)
|
|
if @break_points.include? [file, pos]
|
|
index = @break_points.index([file, pos])
|
|
STDOUT.printf "Breakpoint %d, %s at %s:%s\n",
|
|
index, debug_funcname(id), file, pos
|
|
return true
|
|
end
|
|
return false
|
|
end
|
|
|
|
def excn_handle(file, line, id, binding)
|
|
fs = @frames.size
|
|
tb = caller(0)[-fs..-1]
|
|
|
|
STDOUT.printf "%s\n", $!
|
|
for i in tb
|
|
STDOUT.printf "\tfrom %s\n", i
|
|
end
|
|
debug_command(file, line, id, binding)
|
|
end
|
|
|
|
def trace_func(event, file, line, id, binding)
|
|
case event
|
|
when 'line'
|
|
if !@no_step or @frames.size == @no_step
|
|
@stop_next -= 1
|
|
elsif @frames.size < @no_step
|
|
@stop_next = 0 # break here before leaving...
|
|
else
|
|
# nothing to do. skipped.
|
|
end
|
|
if @stop_next == 0
|
|
if [file, line] == @last
|
|
@stop_next = 1
|
|
else
|
|
@no_step = nil
|
|
debug_command(file, line, id, binding)
|
|
@last = [file, line]
|
|
end
|
|
end
|
|
if check_break_points(file, line, binding, id)
|
|
debug_command(file, line, id, binding)
|
|
end
|
|
|
|
when 'call'
|
|
@frames.unshift binding
|
|
if check_break_points(file, id.id2name, binding, id)
|
|
debug_command(file, line, id, binding)
|
|
end
|
|
|
|
when 'class'
|
|
@frames.unshift binding
|
|
|
|
when 'return', 'end'
|
|
if @frames.size == @finish_pos
|
|
@stop_next = 1
|
|
end
|
|
@frames.shift
|
|
|
|
when 'raise'
|
|
excn_handle(file, line, id, binding)
|
|
|
|
end
|
|
@last_file = file
|
|
end
|
|
|
|
CONTEXT = new
|
|
end
|
|
|
|
set_trace_func proc{|event, file, line, id, binding,*rest|
|
|
DEBUGGER__::CONTEXT.trace_func event, file, line, id, binding
|
|
}
|