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compiler_vm: improved function extraction

This commit is contained in:
Pragmatic Software 2012-03-21 15:58:07 +00:00
parent 2fc11ea1fd
commit 0e957ba414
2 changed files with 9 additions and 6 deletions

View File

@ -13,7 +13,7 @@ use warnings;
# These are set automatically by the build/commit script
use constant {
BUILD_NAME => "PBot",
BUILD_REVISION => 366,
BUILD_REVISION => 367,
BUILD_DATE => "2012-03-21",
};

View File

@ -610,7 +610,7 @@ if($lang eq 'C' or $lang eq 'C99' or $lang eq 'C11' or $lang eq 'C++') {
my $prelude = '';
$prelude = "$1$2" if $precode =~ s/^\s*(#.*)(#.*?>\s*\n)//s;
print "*** prelude: [$prelude]\nprecode: [$precode]\n" if $debug;
print "*** prelude: [$prelude]\n precode: [$precode]\n" if $debug;
# strip C and C++ style comments
$precode =~ s#/\*[^*]*\*+([^/*][^*]*\*+)*/|//([^\\]|[^\n][\n]?)*?\n|("(\\.|[^"\\])*"|'(\\.|[^'\\])*'|.[^/"'\\]*)#defined $3 ? $3 : ""#gse;
@ -627,8 +627,10 @@ if($lang eq 'C' or $lang eq 'C99' or $lang eq 'C11' or $lang eq 'C++') {
print "looking for functions, has main: $has_main\n" if $debug >= 2;
my $func_regex = qr/([ a-zA-Z0-9_*\[\]]+)\s+([a-zA-Z0-9_*]+)\s*\(([^;]+)\)\s*(\{.*)/;
# look for potential functions to extract
while($preprecode =~ m/([ a-zA-Z0-9_*[\]]+)\s+([a-zA-Z0-9_*]+)\s*\((.*?)\)\s*(\{.*)/) {
while($preprecode =~ $func_regex) {
my ($pre_ret, $pre_ident, $pre_params, $pre_potential_body) = ($1, $2, $3, $4);
print "looking for functions, found [$pre_ret][$pre_ident][$pre_params][...], has main: $has_main\n" if $debug >= 2;
@ -638,7 +640,7 @@ if($lang eq 'C' or $lang eq 'C99' or $lang eq 'C11' or $lang eq 'C++') {
my $extract_pos = (pos $preprecode) - (length $1);
# now that we have the pos, substitute out the extracted potential function from preprecode
$preprecode =~ s/([ a-zA-Z0-9_*[\]]+)\s+([a-zA-Z0-9_*]+)\s*\((.*?)\)\s*(\{.*)//;
$preprecode =~ s/$func_regex//;
# create tmpcode object that starts from extract pos, to skip any quoted code
my $tmpcode = substr($precode, $extract_pos);
@ -647,7 +649,7 @@ if($lang eq 'C' or $lang eq 'C99' or $lang eq 'C11' or $lang eq 'C++') {
$precode = substr($precode, 0, $extract_pos);
print "precode: [$precode]\n" if $debug;
$tmpcode =~ m/([ a-zA-Z0-9_*[\]]+)\s+([a-zA-Z0-9_*]+)\s*\((.*?)\)\s*(\{.*)/ms;
$tmpcode =~ m/$func_regex/ms;
my ($ret, $ident, $params, $potential_body) = ($1, $2, $3, $4);
print "[$ret][$ident][$params][$potential_body]\n" if $debug;
@ -659,7 +661,7 @@ if($lang eq 'C' or $lang eq 'C99' or $lang eq 'C11' or $lang eq 'C++') {
$precode .= "$ret $ident ($params) $potential_body";
next;
} else {
$tmpcode =~ s/([ a-zA-Z0-9_*[\]]+)\s+([a-zA-Z0-9_*]+)\s*\((.*?)\)\s*(\{.*)//;
$tmpcode =~ s/([ a-zA-Z0-9_*\[\]]+)\s+([a-zA-Z0-9_*]+)\s*\((.*?)\)\s*(\{.*)//;
}
my @extract = extract_bracketed($potential_body, '{}');
@ -687,6 +689,7 @@ if($lang eq 'C' or $lang eq 'C99' or $lang eq 'C11' or $lang eq 'C++') {
$code = "$prelude\n\n$code\n\nint main(int argc, char **argv) {\n$precode\n;\nreturn 0;\n}\n";
$nooutput = "No warnings, errors or output.";
} else {
print "code: [$code]; precode: [$precode]\n" if $debug;
$code = "$prelude\n\n$precode\n\n$code\n";
$nooutput = "No warnings, errors or output.";
}