Commit | Line | Data |
542d5b5c |
1 | package Object::Remote::ModuleLoader; |
2 | |
3 | BEGIN { |
4 | package Object::Remote::ModuleLoader::Hook; |
5 | use Moo; |
624072a8 |
6 | use Object::Remote::Logging qw( :log :dlog ); |
542d5b5c |
7 | has sender => (is => 'ro', required => 1); |
8 | |
9 | # unqualified INC forced into package main |
10 | sub Object::Remote::ModuleLoader::Hook::INC { |
11 | my ($self, $module) = @_; |
4a9fa1a5 |
12 | log_debug { "Loading $module via " . ref($self) }; |
3a8356e1 |
13 | my $ret = eval { |
daa3054c |
14 | if (my $code = $self->sender->source_for($module)) { |
15 | open my $fh, '<', \$code; |
16 | Dlog_trace { "Module sender successfully sent code for '$module': $code" } $code; |
17 | return $fh; |
18 | } |
19 | log_trace { "Module sender did not return code for '$module'" }; |
20 | return; |
ee6a17a6 |
21 | }; |
3a8356e1 |
22 | if ($@) { |
ee6a17a6 |
23 | log_trace { "Module sender blew up - $@" }; |
3a8356e1 |
24 | if ($@ =~ /Can't locate/) { |
48816a63 |
25 | my @caller = caller(0); |
26 | if ($caller[0] eq 'base') { |
27 | $@ =~ s/(in \@INC.)/$1 at $caller[1] line $caller[2]/; |
28 | } |
daa3054c |
29 | # Fudge the error messge to make it work with |
30 | # Module::Runtime use_package_optimistically |
31 | # Module::Runtime wants - /\ACan't locate \Q$fn\E .+ at \Q@{[__FILE__]}\E line/ |
710f1c32 |
32 | # We could probably measure and hard-code this but that could easily |
33 | # be a forwards compatibility disaster, so do a quick search of caller |
34 | # with a reasonable range; we're already into a woefully inefficient |
35 | # situation here so a little defensiveness won't make things much worse |
3a8356e1 |
36 | foreach my $i (4..20) { |
37 | my ($package, $file, $line) = caller($i); |
38 | last unless $package; |
39 | if ($package eq 'Module::Runtime') { |
40 | # we want to fill in the error message with the |
41 | # module runtime module call info. |
42 | $@ =~ s/(in \@INC.)/$1 at $file line $line/; |
43 | last; |
44 | } |
ee6a17a6 |
45 | } |
daa3054c |
46 | } |
ee6a17a6 |
47 | die $@; |
542d5b5c |
48 | } |
ee6a17a6 |
49 | return $ret; |
542d5b5c |
50 | } |
51 | } |
52 | |
53 | use Moo; |
54 | |
5e2b2229 |
55 | use Object::Remote::Logging qw( :log ); |
56 | |
542d5b5c |
57 | has module_sender => (is => 'ro', required => 1); |
58 | |
59 | has inc_hook => (is => 'lazy'); |
60 | |
61 | sub _build_inc_hook { |
62 | my ($self) = @_; |
5e2b2229 |
63 | log_debug { "Constructing module builder hook" }; |
37efeb68 |
64 | my $hook = Object::Remote::ModuleLoader::Hook->new(sender => $self->module_sender); |
65 | log_trace { "Done constructing module builder hook" }; |
55c0d020 |
66 | return $hook; |
542d5b5c |
67 | } |
68 | |
69 | sub BUILD { shift->enable } |
70 | |
71 | sub enable { |
4a9fa1a5 |
72 | log_debug { "enabling module loader hook" }; |
542d5b5c |
73 | push @INC, shift->inc_hook; |
74 | return; |
75 | } |
76 | |
77 | sub disable { |
78 | my ($self) = @_; |
4a9fa1a5 |
79 | log_debug { "disabling module loader hook" }; |
542d5b5c |
80 | my $hook = $self->inc_hook; |
81 | @INC = grep $_ ne $hook, @INC; |
82 | return; |
83 | } |
84 | |
85 | sub DEMOLISH { $_[0]->disable unless $_[1] } |
86 | |
87 | 1; |