line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
|
|
|
|
|
|
|
package B::Utils1::OP; |
2
|
|
|
|
|
|
|
|
3
|
|
|
|
|
|
|
require 5.006; |
4
|
1
|
|
|
1
|
|
3821
|
use B::Utils1 (); |
|
1
|
|
|
|
|
2
|
|
|
1
|
|
|
|
|
70
|
|
5
|
|
|
|
|
|
|
|
6
|
|
|
|
|
|
|
our @ISA = 'Exporter'; |
7
|
|
|
|
|
|
|
require Exporter; |
8
|
|
|
|
|
|
|
our $VERSION = '1.05'; |
9
|
|
|
|
|
|
|
our @EXPORT = qw(parent_op return_op); |
10
|
|
|
|
|
|
|
|
11
|
|
|
|
|
|
|
=head1 NAME |
12
|
|
|
|
|
|
|
|
13
|
|
|
|
|
|
|
B::Utils1::OP - op related utility functions for perl |
14
|
|
|
|
|
|
|
|
15
|
|
|
|
|
|
|
=head1 SYNOPSIS |
16
|
|
|
|
|
|
|
|
17
|
|
|
|
|
|
|
use B::Utils1::OP qw(parent_op return_op); |
18
|
|
|
|
|
|
|
sub foo { |
19
|
|
|
|
|
|
|
my $pop = parent_op(0); |
20
|
|
|
|
|
|
|
my $rop = return_op(0); |
21
|
|
|
|
|
|
|
} |
22
|
|
|
|
|
|
|
|
23
|
|
|
|
|
|
|
=head1 DESCRIPTION |
24
|
|
|
|
|
|
|
|
25
|
|
|
|
|
|
|
sub foo { |
26
|
|
|
|
|
|
|
dothis(1); |
27
|
|
|
|
|
|
|
find_things(); |
28
|
|
|
|
|
|
|
return; |
29
|
|
|
|
|
|
|
} |
30
|
|
|
|
|
|
|
|
31
|
|
|
|
|
|
|
has the following optree: |
32
|
|
|
|
|
|
|
|
33
|
|
|
|
|
|
|
d <1> leavesub[1 ref] K/REFC,1 ->(end) |
34
|
|
|
|
|
|
|
- <@> lineseq KP ->d |
35
|
|
|
|
|
|
|
1 <;> nextstate(main -371 bah.pl:8) v/2 ->2 |
36
|
|
|
|
|
|
|
5 <1> entersub[t2] vKS/TARG,3 ->6 |
37
|
|
|
|
|
|
|
- <1> ex-list K ->5 |
38
|
|
|
|
|
|
|
2 <0> pushmark s ->3 |
39
|
|
|
|
|
|
|
3 <$> const[IV 1] sM ->4 |
40
|
|
|
|
|
|
|
- <1> ex-rv2cv sK/3 ->- |
41
|
|
|
|
|
|
|
4 <#> gv[*dothis] s ->5 |
42
|
|
|
|
|
|
|
6 <;> nextstate(main -371 bah.pl:9) v/2 ->7 |
43
|
|
|
|
|
|
|
|
44
|
|
|
|
|
|
|
9 <1> entersub[t4] vKS/TARG,3 ->a |
45
|
|
|
|
|
|
|
- <1> ex-list K ->9 |
46
|
|
|
|
|
|
|
7 <0> pushmark s ->8 |
47
|
|
|
|
|
|
|
- <1> ex-rv2cv sK/3 ->- |
48
|
|
|
|
|
|
|
8 <#> gv[*find_things] s/EARLYCV ->9 |
49
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
|
a <;> nextstate(main -371 bah.pl:10) v/2 ->b |
51
|
|
|
|
|
|
|
c <@> return K ->d |
52
|
|
|
|
|
|
|
b <0> pushmark s ->c |
53
|
|
|
|
|
|
|
|
54
|
|
|
|
|
|
|
The C in C is called in the C in #9. If |
55
|
|
|
|
|
|
|
you call C function with level 0, you get the C |
56
|
|
|
|
|
|
|
op that is before the entersub, which is #6. And C gives |
57
|
|
|
|
|
|
|
you the next op that the caller is returning to, in this case, the |
58
|
|
|
|
|
|
|
C in #a. |
59
|
|
|
|
|
|
|
|
60
|
|
|
|
|
|
|
=head2 EXPORTED PERL FUNCTIONS |
61
|
|
|
|
|
|
|
|
62
|
|
|
|
|
|
|
=over |
63
|
|
|
|
|
|
|
|
64
|
|
|
|
|
|
|
=item parent_op($lv) |
65
|
|
|
|
|
|
|
|
66
|
|
|
|
|
|
|
In runtime, returns the L object whose next is the C of the current context up level C<$lv> |
67
|
|
|
|
|
|
|
|
68
|
|
|
|
|
|
|
=item return_op($lv) |
69
|
|
|
|
|
|
|
|
70
|
|
|
|
|
|
|
In runtime, returns the L object that the current context is returning to at level C<$lv> |
71
|
|
|
|
|
|
|
|
72
|
|
|
|
|
|
|
=back |
73
|
|
|
|
|
|
|
|
74
|
|
|
|
|
|
|
=head1 AUTHORS |
75
|
|
|
|
|
|
|
|
76
|
|
|
|
|
|
|
Chia-liang Kao Eclkao@clkao.orgE |
77
|
|
|
|
|
|
|
|
78
|
|
|
|
|
|
|
=head1 COPYRIGHT |
79
|
|
|
|
|
|
|
|
80
|
|
|
|
|
|
|
Copyright 2008 by Chia-liang Kao |
81
|
|
|
|
|
|
|
|
82
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify it |
83
|
|
|
|
|
|
|
under the same terms as Perl itself. |
84
|
|
|
|
|
|
|
|
85
|
|
|
|
|
|
|
See L |
86
|
|
|
|
|
|
|
|
87
|
|
|
|
|
|
|
=cut |
88
|
|
|
|
|
|
|
|
89
|
|
|
|
|
|
|
1; |