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mirror of https://github.com/samba-team/samba.git synced 2024-12-22 13:34:15 +03:00

r21253: Merge some pidl fixes:

* Add tests for wireshark dissector generator
 * Add tests for the header code
 * Some cleanups
 * Fix handling of elements without [in] or [out]
(This used to be commit 1aecba7100)
This commit is contained in:
Jelmer Vernooij 2007-02-08 23:54:31 +00:00 committed by Gerald (Jerry) Carter
parent 57a68c9317
commit 45db103065
9 changed files with 277 additions and 59 deletions

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@ -21,3 +21,10 @@
- mem_ctx in the interface rather than as struct ndr member.
- real typelibs
- fix [in,out] handling and allocation for samba3:
- add inout
- make NULL to mean "allocate me"
- remove NDR_AUTO_REF_ALLOC flag
- automatic test generator based on IDL pointer types

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@ -9,7 +9,6 @@ package Parse::Pidl::Samba4::Header;
use strict;
use Parse::Pidl::Typelist qw(mapType);
use Parse::Pidl::Util qw(has_property is_constant);
use Parse::Pidl::NDR qw(GetNextLevel GetPrevLevel);
use Parse::Pidl::Samba4 qw(is_intree);
use vars qw($VERSION);
@ -236,15 +235,25 @@ sub HeaderConst($)
}
}
sub ElementDirection($)
{
my ($e) = @_;
return "inout" if (has_property($e, "in") and has_property($e, "out"));
return "in" if (has_property($e, "in"));
return "out" if (has_property($e, "out"));
return "inout";
}
#####################################################################
# parse a function
sub HeaderFunctionInOut($$)
{
my($fn,$prop) = @_;
foreach (@{$fn->{ELEMENTS}}) {
HeaderElement($_) if (has_property($_, $prop));
}
foreach (@{$fn->{ELEMENTS}}) {
HeaderElement($_) if (ElementDirection($_) eq $prop);
}
}
#####################################################################
@ -255,8 +264,8 @@ sub HeaderFunctionInOut_needed($$)
return 1 if ($prop eq "out" && $fn->{RETURN_TYPE} ne "void");
foreach (@{$fn->{ELEMENTS}}) {
return 1 if (has_property($_, $prop));
foreach (@{$fn->{ELEMENTS}}) {
return 1 if (ElementDirection($_) eq $prop);
}
return undef;
@ -278,19 +287,23 @@ sub HeaderFunction($)
$tab_depth++;
my $needed = 0;
if (HeaderFunctionInOut_needed($fn, "in")) {
if (HeaderFunctionInOut_needed($fn, "in") or
HeaderFunctionInOut_needed($fn, "inout")) {
pidl tabs()."struct {\n";
$tab_depth++;
HeaderFunctionInOut($fn, "in");
HeaderFunctionInOut($fn, "inout");
$tab_depth--;
pidl tabs()."} in;\n\n";
$needed++;
}
if (HeaderFunctionInOut_needed($fn, "out")) {
if (HeaderFunctionInOut_needed($fn, "out") or
HeaderFunctionInOut_needed($fn, "inout")) {
pidl tabs()."struct {\n";
$tab_depth++;
HeaderFunctionInOut($fn, "out");
HeaderFunctionInOut($fn, "inout");
if ($fn->{RETURN_TYPE} ne "void") {
pidl tabs().mapType($fn->{RETURN_TYPE}) . " result;\n";
}
@ -299,7 +312,7 @@ sub HeaderFunction($)
$needed++;
}
if (! $needed) {
if (!$needed) {
# sigh - some compilers don't like empty structures
pidl tabs()."int _dummy_element;\n";
}

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@ -10,7 +10,7 @@ package Parse::Pidl::Samba4::NDR::Parser;
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(is_charset_array);
@EXPORT_OK = qw(check_null_pointer);
@EXPORT_OK = qw(check_null_pointer GenerateFunctionInEnv GenerateFunctionOutEnv);
use strict;
use Parse::Pidl::Typelist qw(hasType getType mapType);
@ -451,7 +451,9 @@ sub ParseArrayPullHeader($$$$$)
if ($l->{IS_VARYING} and not $l->{IS_ZERO_TERMINATED}) {
defer "if ($var_name) {";
defer_indent;
my $length = ParseExprExt($l->{LENGTH_IS}, $env, $e->{ORIGINAL}, check_null_pointer($e, $env, \&defer, "return NT_STATUS_INVALID_PARAMETER_MIX;"), check_fully_dereferenced($e, $env));
my $length = ParseExprExt($l->{LENGTH_IS}, $env, $e->{ORIGINAL},
check_null_pointer($e, $env, \&defer, "return NT_STATUS_INVALID_PARAMETER_MIX;"),
check_fully_dereferenced($e, $env));
defer "NDR_CHECK(ndr_check_array_length(ndr, (void*)" . get_pointer_to($var_name) . ", $length));";
defer_deindent;
defer "}"
@ -689,12 +691,12 @@ sub ParseElementPushLevel
#####################################################################
# parse scalars in a structure element
sub ParseElementPush($$$$$$)
sub ParseElementPush($$$$$)
{
my ($e,$ndr,$var_prefix,$env,$primitives,$deferred) = @_;
my ($e,$ndr,$env,$primitives,$deferred) = @_;
my $subndr = undef;
my $var_name = $var_prefix.$e->{NAME};
my $var_name = $env->{$e->{NAME}};
return unless $primitives or ($deferred and ContainsDeferred($e, $e->{LEVELS}[0]));
@ -1096,11 +1098,11 @@ sub ParseElementPullLevel
#####################################################################
# parse scalars in a structure element - pull size
sub ParseElementPull($$$$$$)
sub ParseElementPull($$$$$)
{
my($e,$ndr,$var_prefix,$env,$primitives,$deferred) = @_;
my($e,$ndr,$env,$primitives,$deferred) = @_;
my $var_name = $var_prefix.$e->{NAME};
my $var_name = $env->{$e->{NAME}};
my $represent_name;
my $transmit_name;
@ -1247,7 +1249,7 @@ sub ParseStructPush($$)
}
foreach my $e (@{$struct->{ELEMENTS}}) {
ParseElementPush($e, "ndr", "r->", $env, 1, 0);
ParseElementPush($e, "ndr", $env, 1, 0);
}
deindent;
@ -1261,7 +1263,7 @@ sub ParseStructPush($$)
pidl "NDR_CHECK(ndr_push_setup_relative_base_offset2(ndr, r));";
}
foreach my $e (@{$struct->{ELEMENTS}}) {
ParseElementPush($e, "ndr", "r->", $env, 0, 1);
ParseElementPush($e, "ndr", $env, 0, 1);
}
deindent;
@ -1547,7 +1549,7 @@ sub ParseStructPull($$)
}
foreach my $e (@{$struct->{ELEMENTS}}) {
ParseElementPull($e, "ndr", "r->", $env, 1, 0);
ParseElementPull($e, "ndr", $env, 1, 0);
}
add_deferred();
@ -1562,7 +1564,7 @@ sub ParseStructPull($$)
pidl "NDR_CHECK(ndr_pull_setup_relative_base_offset2(ndr, r));";
}
foreach my $e (@{$struct->{ELEMENTS}}) {
ParseElementPull($e, "ndr", "r->", $env, 0, 1);
ParseElementPull($e, "ndr", $env, 0, 1);
}
add_deferred();
@ -1662,7 +1664,7 @@ sub ParseUnionPush($$)
pidl "NDR_CHECK(ndr_push_setup_relative_base_offset1(ndr, r, ndr->offset));";
}
DeclareArrayVariables($el);
ParseElementPush($el, "ndr", "r->", {}, 1, 0);
ParseElementPush($el, "ndr", {$el->{NAME} => "r->$el->{NAME}"}, 1, 0);
deindent;
}
pidl "break;";
@ -1689,7 +1691,7 @@ sub ParseUnionPush($$)
pidl "$el->{CASE}:";
if ($el->{TYPE} ne "EMPTY") {
indent;
ParseElementPush($el, "ndr", "r->", {}, 0, 1);
ParseElementPush($el, "ndr", {$el->{NAME} => "r->$el->{NAME}"}, 0, 1);
deindent;
}
pidl "break;";
@ -1810,7 +1812,7 @@ sub ParseUnionPull($$)
# and store it based on the toplevel struct/union
pidl "NDR_CHECK(ndr_pull_setup_relative_base_offset1(ndr, r, ndr->offset));";
}
ParseElementPull($el, "ndr", "r->", {}, 1, 0);
ParseElementPull($el, "ndr", {$el->{NAME} => "r->$el->{NAME}"}, 1, 0);
deindent;
}
pidl "break; }";
@ -1837,7 +1839,7 @@ sub ParseUnionPull($$)
pidl "$el->{CASE}:";
if ($el->{TYPE} ne "EMPTY") {
indent;
ParseElementPull($el, "ndr", "r->", {}, 0, 1);
ParseElementPull($el, "ndr", {$el->{NAME} => "r->$el->{NAME}"}, 0, 1);
deindent;
}
pidl "break;";
@ -1993,7 +1995,7 @@ sub ParseFunctionPrint($)
foreach my $e (@{$fn->{ELEMENTS}}) {
if (grep(/in/,@{$e->{DIRECTION}})) {
ParseElementPrint($e, "r->in.$e->{NAME}", $env);
ParseElementPrint($e, $env->{$e->{NAME}}, $env);
}
}
pidl "ndr->depth--;";
@ -2008,7 +2010,7 @@ sub ParseFunctionPrint($)
$env = GenerateFunctionOutEnv($fn);
foreach my $e (@{$fn->{ELEMENTS}}) {
if (grep(/out/,@{$e->{DIRECTION}})) {
ParseElementPrint($e, "r->out.$e->{NAME}", $env);
ParseElementPrint($e, $env->{$e->{NAME}}, $env);
}
}
if ($fn->{RETURN_TYPE}) {
@ -2050,7 +2052,7 @@ sub ParseFunctionPush($)
foreach my $e (@{$fn->{ELEMENTS}}) {
if (grep(/in/,@{$e->{DIRECTION}})) {
ParseElementPush($e, "ndr", "r->in.", $env, 1, 1);
ParseElementPush($e, "ndr", $env, 1, 1);
}
}
@ -2063,7 +2065,7 @@ sub ParseFunctionPush($)
$env = GenerateFunctionOutEnv($fn);
foreach my $e (@{$fn->{ELEMENTS}}) {
if (grep(/out/,@{$e->{DIRECTION}})) {
ParseElementPush($e, "ndr", "r->out.", $env, 1, 1);
ParseElementPush($e, "ndr", $env, 1, 1);
}
}
@ -2147,7 +2149,7 @@ sub ParseFunctionPull($)
foreach my $e (@{$fn->{ELEMENTS}}) {
next unless (grep(/in/, @{$e->{DIRECTION}}));
ParseElementPull($e, "ndr", "r->in.", $env, 1, 1);
ParseElementPull($e, "ndr", $env, 1, 1);
}
# allocate the "simple" out ref variables. FIXME: Shouldn't this have it's
@ -2194,7 +2196,7 @@ sub ParseFunctionPull($)
$env = GenerateFunctionOutEnv($fn);
foreach my $e (@{$fn->{ELEMENTS}}) {
next unless grep(/out/, @{$e->{DIRECTION}});
ParseElementPull($e, "ndr", "r->out.", $env, 1, 1);
ParseElementPull($e, "ndr", $env, 1, 1);
}
if ($fn->{RETURN_TYPE}) {

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@ -15,9 +15,31 @@ use strict;
use Parse::Pidl::Expr;
use Parse::Pidl qw(error);
#####################################################################
# a dumper wrapper to prevent dependence on the Data::Dumper module
# unless we actually need it
=head1 NAME
Parse::Pidl::Util - Generic utility functions for pidl
=head1 SYNOPSIS
use Parse::Pidl::Util;
=head1 DESCRIPTION
Simple module that contains a couple of trivial helper functions
used throughout the various pidl modules.
=head1 FUNCTIONS
=over 4
=cut
=item B<MyDumper>
a dumper wrapper to prevent dependence on the Data::Dumper module
unless we actually need it
=cut
sub MyDumper($)
{
require Data::Dumper;
@ -25,8 +47,10 @@ sub MyDumper($)
return Data::Dumper::Dumper($s);
}
#####################################################################
# see if a pidl property list contains a given property
=item B<has_property>
see if a pidl property list contains a given property
=cut
sub has_property($$)
{
my($e, $p) = @_;
@ -36,8 +60,10 @@ sub has_property($$)
return $e->{PROPERTIES}->{$p};
}
#####################################################################
# see if a pidl property matches a value
=item B<property_matches>
see if a pidl property matches a value
=cut
sub property_matches($$$)
{
my($e,$p,$v) = @_;
@ -53,16 +79,22 @@ sub property_matches($$$)
return undef;
}
# return 1 if the string is a C constant
=item B<is_constant>
return 1 if the string is a C constant
=cut
sub is_constant($)
{
my $s = shift;
return 1 if (defined $s && $s =~ /^\d+$/);
return 1 if (defined $s && $s =~ /^0x[0-9A-Fa-f]+$/);
return 1 if ($s =~ /^\d+$/);
return 1 if ($s =~ /^0x[0-9A-Fa-f]+$/);
return 0;
}
# return a "" quoted string, unless already quoted
=item B<make_str>
return a "" quoted string, unless already quoted
=cut
sub make_str($)
{
my $str = shift;
@ -72,6 +104,10 @@ sub make_str($)
return "\"$str\"";
}
=item B<print_uuid>
Print C representation of a UUID.
=cut
sub print_uuid($)
{
my ($uuid) = @_;
@ -87,12 +123,14 @@ sub print_uuid($)
"{".join(',', map {"0x$_"} @node)."}}";
}
=item B<ParseExpr>
Interpret an IDL expression, substituting particular variables.
=cut
sub ParseExpr($$$)
{
my($expr, $varlist, $e) = @_;
die("Undefined value in ParseExpr") if not defined($expr);
my $x = new Parse::Pidl::Expr();
return $x->Run($expr, sub { my $x = shift; error($e, $x); },
@ -104,12 +142,15 @@ sub ParseExpr($$$)
undef, undef);
}
=item B<ParseExprExt>
Interpret an IDL expression, substituting particular variables. Can call
callbacks when pointers are being dereferenced or variables are being used.
=cut
sub ParseExprExt($$$$$)
{
my($expr, $varlist, $e, $deref, $use) = @_;
die("Undefined value in ParseExpr") if not defined($expr);
my $x = new Parse::Pidl::Expr();
return $x->Run($expr, sub { my $x = shift; error($e, $x); },
@ -121,4 +162,8 @@ sub ParseExprExt($$$$$)
$deref, $use);
}
=back
=cut
1;

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@ -96,7 +96,7 @@ use vars qw($VERSION);
$VERSION = '0.01';
@ISA = qw(Exporter);
@EXPORT_OK = qw(ReadConformance);
@EXPORT_OK = qw(ReadConformance ReadConformanceFH);
use strict;
@ -157,7 +157,7 @@ sub handle_hf_rename($$$$)
my ($pos,$data,$old,$new) = @_;
unless(defined($new)) {
error($pos, "incomplete HF_RENAME command");
warning($pos, "incomplete HF_RENAME command");
return;
}
@ -253,6 +253,11 @@ sub handle_manual($$$)
{
my ($pos,$data,$fn) = @_;
unless(defined($fn)) {
warning($pos, "incomplete MANUAL command");
return;
}
$data->{manual}->{$fn} = 1;
}
@ -271,6 +276,11 @@ sub handle_fielddescription($$$$)
{
my ($pos,$data,$field,$desc) = @_;
unless(defined($desc)) {
warning($pos, "incomplete FIELD_DESCRIPTION command");
return;
}
$data->{fielddescription}->{$field} = {
DESCRIPTION => $desc,
POS => $pos,
@ -314,16 +324,26 @@ my %field_handlers = (
sub ReadConformance($$)
{
my ($f,$data) = @_;
$data->{override} = "";
my $incodeblock = 0;
my $ret;
open(IN,"<$f") or return undef;
$ret = ReadConformanceFH(*IN, $data, $f);
close(IN);
return $ret;
}
sub ReadConformanceFH($$$)
{
my ($fh,$data,$f) = @_;
my $incodeblock = 0;
my $ln = 0;
foreach (<IN>) {
foreach (<$fh>) {
$ln++;
next if (/^#.*$/);
next if (/^$/);
@ -337,7 +357,11 @@ sub ReadConformance($$)
$incodeblock = 0;
next;
} elsif ($incodeblock) {
$data->{override}.="$_\n";
if (exists $data->{override}) {
$data->{override}.="$_\n";
} else {
$data->{override} = "$_\n";
}
next;
}
@ -349,6 +373,8 @@ sub ReadConformance($$)
my $pos = { FILE => $f, LINE => $ln };
next unless(defined($cmd));
if (not defined($field_handlers{$cmd})) {
warning($pos, "Unknown command `$cmd'");
next;
@ -357,7 +383,13 @@ sub ReadConformance($$)
$field_handlers{$cmd}($pos, $data, @fields);
}
close(IN);
if ($incodeblock) {
warning({ FILE => $f, LINE => $ln },
"Expecting CODE END");
return undef;
}
return 1;
}
1;

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@ -2,7 +2,7 @@
# Samba4 NDR parser generator for IDL structures
# Copyright tridge@samba.org 2000-2003
# Copyright tpot@samba.org 2001,2005
# Copyright jelmer@samba.org 2004-2005
# Copyright jelmer@samba.org 2004-2007
# Portions based on idl2eth.c by Ronnie Sahlberg
# released under the GNU GPL
@ -918,7 +918,9 @@ sub Parse($$$$)
$parser.=$res{ett};
$parser.=$res{hf};
$parser.=$res{def};
$parser.=$conformance->{override};
if (exists ($conformance->{override})) {
$parser.=$conformance->{override};
}
$parser.=$res{code};
my $header = "/* autogenerated by pidl */\n\n";

36
source4/pidl/tests/header.pl Executable file
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@ -0,0 +1,36 @@
#!/usr/bin/perl
# (C) 2007 Jelmer Vernooij <jelmer@samba.org>
# Published under the GNU General Public License
use strict;
use warnings;
use Test::More tests => 9;
use FindBin qw($RealBin);
use lib "$RealBin";
use Util;
use Parse::Pidl::Util qw(MyDumper);
use Parse::Pidl::Samba4::Header;
use Parse::Pidl::IDL qw(parse_string);
sub parse_idl($)
{
my $text = shift;
my $idl = Parse::Pidl::IDL::parse_string($text, "nofile");
return Parse::Pidl::Samba4::Header::Parse($idl);
}
is("/* header auto-generated by pidl */\n\n#include <core.h>\n\n", parse_idl(""), "includes work");
is("/* header auto-generated by pidl */\n\n#include <core.h>\n\n", parse_idl("interface x {}"), "simple empty interface doesn't cause overhead");
like(parse_idl("interface p { typedef struct { int y; } x; };"),
qr/.*#ifndef _HEADER_p\n#define _HEADER_p\n.+\n#endif \/\* _HEADER_p \*\/.*/ms, "ifdefs are created");
like(parse_idl("interface p { typedef struct { int y; } x; };"),
qr/struct x.*{.*int32_t y;.*}.*;/sm, "interface member generated properly");
like(parse_idl("interface x { void foo (void); };"),
qr/struct foo.*{\s+int _dummy_element;\s+};/sm, "void fn contains dummy element");
like(parse_idl("interface x { void foo ([in] uint32 x); };"),
qr/struct foo.*{\s+struct\s+{\s+uint32_t x;\s+} in;\s+};/sm, "fn in arg works");
like(parse_idl("interface x { void foo ([out] uint32 x); };"),
qr/struct foo.*{.*struct\s+{\s+uint32_t x;\s+} out;.*};/sm, "fn out arg works");
like(parse_idl("interface x { void foo ([in,out] uint32 x); };"),
qr/struct foo.*{.*struct\s+{\s+uint32_t x;\s+} in;\s+struct\s+{\s+uint32_t x;\s+} out;.*};/sm, "fn in,out arg works");
like(parse_idl("interface x { void foo (uint32 x); };"), qr/struct foo.*{.*struct\s+{\s+uint32_t x;\s+} in;\s+struct\s+{\s+uint32_t x;\s+} out;.*};/sm, "fn with no props implies in,out");

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@ -4,12 +4,12 @@
use strict;
use warnings;
use Test::More tests => 10;
use Test::More tests => 16;
use FindBin qw($RealBin);
use lib "$RealBin";
use Util;
use Parse::Pidl::Util qw(MyDumper);
use Parse::Pidl::Samba4::NDR::Parser qw(check_null_pointer);
use Parse::Pidl::Samba4::NDR::Parser qw(check_null_pointer GenerateFunctionInEnv GenerateFunctionOutEnv);
my $output;
sub print_fn($) { my $x = shift; $output.=$x; }
@ -133,3 +133,22 @@ test_warnings("nofile:2: unknown dereferenced expression `r->in.bla'\n",
sub { $fn->("r->in.bla"); });
is($output, "if (r->in.bla == NULL) return;");
# Make sure GenerateFunctionInEnv and GenerateFunctionOutEnv work
$fn = { ELEMENTS => [ { DIRECTION => ["in"], NAME => "foo" } ] };
is_deeply({ "foo" => "r->in.foo" }, GenerateFunctionInEnv($fn));
$fn = { ELEMENTS => [ { DIRECTION => ["out"], NAME => "foo" } ] };
is_deeply({ "foo" => "r->out.foo" }, GenerateFunctionOutEnv($fn));
$fn = { ELEMENTS => [ { DIRECTION => ["out", "in"], NAME => "foo" } ] };
is_deeply({ "foo" => "r->in.foo" }, GenerateFunctionInEnv($fn));
$fn = { ELEMENTS => [ { DIRECTION => ["out", "in"], NAME => "foo" } ] };
is_deeply({ "foo" => "r->out.foo" }, GenerateFunctionOutEnv($fn));
$fn = { ELEMENTS => [ { DIRECTION => ["in"], NAME => "foo" } ] };
is_deeply({ "foo" => "r->in.foo" }, GenerateFunctionOutEnv($fn));
$fn = { ELEMENTS => [ { DIRECTION => ["out"], NAME => "foo" } ] };
is_deeply({ }, GenerateFunctionInEnv($fn));

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@ -0,0 +1,62 @@
#!/usr/bin/perl
# (C) 2007 Jelmer Vernooij <jelmer@samba.org>
# Published under the GNU General Public License
# test parsing wireshark conformance files
use strict;
use warnings;
use Test::More tests => 20;
use FindBin qw($RealBin);
use lib "$RealBin";
use Util;
use Parse::Pidl::Util qw(MyDumper);
use Parse::Pidl::Wireshark::Conformance qw(ReadConformanceFH);
sub parse_conf($)
{
my $str = shift;
open(TMP, "+>", undef) or die("unable to open temp file");
print TMP $str;
seek(TMP, 0, 0);
my $data = {};
ReadConformanceFH(*TMP, $data, "nofile") or return undef;
close(TMP);
return $data;
}
ok(parse_conf("\n"), undef);
ok(parse_conf(" \n"), undef);
ok(parse_conf("CODE START\nCODE END\n"));
test_warnings("nofile:1: Expecting CODE END\n", sub { is(parse_conf("CODE START\n"), undef); });
ok(parse_conf("#foobar\n"), undef);
test_warnings("nofile:1: Unknown command `foobar'\n",
sub { ok(parse_conf("foobar\n"), undef); });
test_warnings("nofile:1: incomplete HF_RENAME command\n",
sub { parse_conf("HF_RENAME\n"); });
is_deeply(parse_conf("HF_RENAME foo bar\n")->{hf_renames}->{foo},
{ OLDNAME => "foo", NEWNAME => "bar", POS => {FILE => "nofile", LINE => 1}, USED => 0});
is_deeply(parse_conf("NOEMIT\n"), { "noemit_dissector" => 1 });
is_deeply(parse_conf("NOEMIT foo\n"), { "noemit" => { "foo" => 1 } });
test_warnings("nofile:1: incomplete MANUAL command\n",
sub { parse_conf("MANUAL\n"); } );
is_deeply(parse_conf("MANUAL foo\n"), { manual => {foo => 1}});
test_warnings("nofile:1: incomplete FIELD_DESCRIPTION command\n",
sub { parse_conf("FIELD_DESCRIPTION foo\n"); });
is_deeply(parse_conf("FIELD_DESCRIPTION foo \"my description\"\n"),
{ fielddescription => { foo => { DESCRIPTION => "\"my description\"", POS => { FILE => "nofile", LINE => 1}, USED => 0 }}});
is_deeply(parse_conf("FIELD_DESCRIPTION foo my description\n"),
{ fielddescription => { foo => { DESCRIPTION => "my", POS => { FILE => "nofile", LINE => 1}, USED => 0 }}});
is_deeply(parse_conf("CODE START\ndata\nCODE END\n"), { override => "data\n" });
is_deeply(parse_conf("CODE START\ndata\nmore data\nCODE END\n"), { override => "data\nmore data\n" });
test_warnings("nofile:1: Unknown command `CODE'\n",
sub { parse_conf("CODE END\n"); } );