1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
#
# irb/lib/tracer.rb -
# $Release Version: 0.9.5$
# $Revision: 1.1.2.1 $
# $Date: 2005/04/19 19:24:58 $
# by Keiju ISHITSUKA(keiju@ruby-lang.org)
#
# --
#
#
#
require "tracer"
module IRB
# initialize tracing function
def IRB.initialize_tracer
Tracer.verbose = false
Tracer.add_filter {
|event, file, line, id, binding, *rests|
/^#{Regexp.quote(@CONF[:IRB_LIB_PATH])}/ !~ file and
File::basename(file) != "irb.rb"
}
end
class Context
attr_reader :use_tracer
alias use_tracer? use_tracer
def use_tracer=(opt)
if opt
Tracer.set_get_line_procs(@irb_path) {
|line_no, *rests|
@io.line(line_no)
}
elsif !opt && @use_tracer
Tracer.off
end
@use_tracer=opt
end
end
class WorkSpace
alias __evaluate__ evaluate
def evaluate(context, statements, file = nil, line = nil)
if context.use_tracer? && file != nil && line != nil
Tracer.on
begin
__evaluate__(context, statements, file, line)
ensure
Tracer.off
end
else
__evaluate__(context, statements, file || __FILE__, line || __LINE__)
end
end
end
IRB.initialize_tracer
end
|
