Sweden-Number/tools/winapi_check/winapi_local.pm

137 lines
4.5 KiB
Perl

package winapi_local;
use strict;
sub check_arguments {
my $options = shift;
my $output = shift;
my $return_type = shift;
my $calling_convention = shift;
my $name = shift;
my $refargument_types = shift;
my @argument_types = @$refargument_types;
my $winapi = shift;
my $module = $winapi->function_module($name);
my $forbidden_return_type = 0;
my $implemented_return_kind;
if(!defined($implemented_return_kind = $winapi->translate_argument($return_type))) {
if($return_type ne "") {
&$output("no translation defined: " . $return_type);
}
} elsif(!$winapi->is_allowed_kind($implemented_return_kind) || !$winapi->allowed_type_in_module($return_type,$module)) {
$forbidden_return_type = 1;
if($options->report_argument_forbidden($return_type)) {
&$output("forbidden return type: $return_type ($implemented_return_kind)");
}
}
my $segmented = 0;
if($implemented_return_kind =~ /^segptr|segstr$/) {
$segmented = 1;
}
my $implemented_calling_convention;
if($winapi->name eq "win16") {
if($calling_convention =~ /^__cdecl$/) {
$implemented_calling_convention = "cdecl";
} elsif($calling_convention = ~ /^__stdcall|VFWAPI|WINAPI$/) {
if($implemented_return_kind =~ /^s_word|word|void$/) {
$implemented_calling_convention = "pascal16";
} else {
$implemented_calling_convention = "pascal";
}
}
} elsif($winapi->name eq "win32") {
if($calling_convention =~ /^__cdecl$/) {
$implemented_calling_convention = "cdecl";
} elsif($calling_convention =~ /^VFWAPIV|WINAPIV$/) {
$implemented_calling_convention = "varargs";
} elsif($calling_convention = ~ /^__stdcall|VFWAPI|WINAPI$/) {
$implemented_calling_convention = "stdcall";
}
}
my $declared_calling_convention = $winapi->function_calling_convention($name);
my @declared_argument_kinds = split(/\s+/, $winapi->function_arguments($name));
if($declared_calling_convention =~ /^register|interrupt$/) {
push @declared_argument_kinds, "ptr";
}
if($declared_calling_convention =~ /^register|interupt$/ &&
(($winapi->name eq "win32" && $implemented_calling_convention eq "stdcall") ||
(($winapi->name eq "win16" && $implemented_calling_convention =~ /^pascal/))))
{
# correct
} elsif($implemented_calling_convention ne $declared_calling_convention &&
!($declared_calling_convention =~ /^pascal/ && $forbidden_return_type))
{
if($options->calling_convention) {
&$output("calling convention mismatch: $implemented_calling_convention != $declared_calling_convention");
}
}
if($declared_calling_convention eq "varargs") {
if($#argument_types != -1 && $argument_types[$#argument_types] eq "...") {
pop @argument_types;
} else {
&$output("function not implemented as vararg");
}
} elsif($#argument_types != -1 && $argument_types[$#argument_types] eq "...") {
&$output("function not declared as vararg");
}
if($name =~ /^CRTDLL__ftol|CRTDLL__CIpow$/) {
# ignore
} elsif($#argument_types != $#declared_argument_kinds) {
if($options->argument_count) {
&$output("argument count differs: " . ($#argument_types + 1) . " != " . ($#declared_argument_kinds + 1));
}
} else {
my $n = 0;
my @argument_kinds = map {
my $type = $_;
my $kind = "unknown";
if(!defined($kind = $winapi->translate_argument($type))) {
&$output("no translation defined: " . $type);
} elsif(!$winapi->is_allowed_kind($kind) ||
!$winapi->allowed_type_in_module($type, $module)) {
if($options->report_argument_forbidden($type)) {
&$output("forbidden argument " . ($n + 1) . " type (" . $type . ")");
}
}
$n++;
$kind;
} @argument_types;
for my $n (0..$#argument_kinds) {
if(!defined($argument_kinds[$n]) || !defined($declared_argument_kinds[$n])) { next; }
if($argument_kinds[$n] =~ /^segptr|segstr$/ ||
$declared_argument_kinds[$n] =~ /^segptr|segstr$/)
{
$segmented = 1;
}
if($argument_kinds[$n] ne $declared_argument_kinds[$n]) {
if($options->report_argument_kind($argument_kinds[$n]) ||
$options->report_argument_kind($declared_argument_kinds[$n]))
{
&$output("argument " . ($n + 1) . " type mismatch: " .
$argument_types[$n] . " ($argument_kinds[$n]) != " . $declared_argument_kinds[$n]);
}
}
}
}
if($segmented && $options->shared_segmented && $winapi->is_shared_function($name)) {
&$output("function using segmented pointers shared between Win16 och Win32");
}
}
1;