function prephp_varClassStatic($tokenStream, $iStart)
{
$i = $iStart;
$numof = count($tokenStream);
// count number of tokens before $class
$dollarClass = 0;
for (; $i < $numof && $tokenStream[$i]->is(T_DOLLAR); ++$i) {
++$dollarClass;
}
// not a dynmaic scope resolution
if (!$tokenStream[$i]->is(T_VARIABLE)) {
return;
}
$tClass = $tokenStream[$i];
// not a scope resolution
if (!$tokenStream[$i = $tokenStream->skipWhitespace($i)]->is(T_PAAMAYIM_NEKUDOTAYIM)) {
return;
}
$i = $tokenStream->skipWhitespace($i);
// count number of dollarMains before main
$dollarMain = 0;
for (; $i < $numof && $tokenStream[$i]->is(T_DOLLAR); ++$i) {
++$dollarMain;
}
// unsupported syntax (something like ${})
if (!$tokenStream[$i]->is(T_STRING, T_VARIABLE)) {
return;
}
$iMain = $i;
if ($tokenStream[$i = $tokenStream->skipWhitespace($i)]->is(T_OPEN_ROUND)) {
$type = 'm';
// method
} else {
$type = $tokenStream[$iMain]->is(T_STRING) ? 'c' : 'p';
// constant or property
}
switch ($type) {
case 'c':
// constant
$constName = $tokenStream[$iMain]->content;
$tokenStream->extract($iStart, $iMain);
// remove
$tokenStream->insert($iStart, array(new Prephp_Token(T_STRING, 'constant'), '(', $dollarClass ? array_fill(0, $dollarClass, '$') : null, $tClass, '.', new Prephp_Token(T_CONSTANT_ENCAPSED_STRING, "'::" . $constName . "'"), ')'));
break;
case 'm':
$tMethod = $tokenStream[$iMain];
if ($tMethod->is(T_STRING)) {
$tMethod = new Prephp_Token(T_CONSTANT_ENCAPSED_STRING, "'" . $tMethod->content . "'");
}
$sArgumentList = $tokenStream->extract($i, $tokenStream->complementaryBracket($i));
$sArgumentList->extract(0);
// remove (
$sArgumentList->extract(count($sArgumentList) - 1);
// remove )
$tokenStream->extract($iStart, $iMain);
$tokenStream->insert($iStart, array(new Prephp_Token(T_STRING, 'call_user_func'), '(', new Prephp_Token(T_ARRAY, 'array'), '(', $dollarClass ? array_fill(0, $dollarClass, '$') : null, $tClass, ',', $tMethod->is(T_VARIABLE) && $dollarMain ? array_fill(0, $dollarMain, '$') : null, $tMethod, ')', count($sArgumentList) ? ',' : null, $sArgumentList, ')'));
break;
case 'p':
if ($dollarMain) {
$aProperty = array($dollarMain - 1 > 0 ? array_fill(0, $dollarMain - 1, '$') : null, $tokenStream[$iMain]);
} else {
$aProperty = new Prephp_Token(T_CONSTANT_ENCAPSED_STRING, "'" . substr($tokenStream[$iMain]->content, 1) . "'");
}
$tokenStream->extract($iStart, $iMain);
$tokenStream->insert($iStart, array('(', new Prephp_Token(T_STRING, 'property_exists'), '(', $dollarClass ? array_fill(0, $dollarClass, '$') : null, $tClass, ',', $aProperty, ')', '?', new Prephp_Token(T_EVAL, 'eval'), '(', new Prephp_Token(T_CONSTANT_ENCAPSED_STRING, "'return '"), '.', $dollarClass ? array_fill(0, $dollarClass, '$') : null, $tClass, '.', new Prephp_Token(T_CONSTANT_ENCAPSED_STRING, "'::\$'"), '.', $aProperty, '.', new Prephp_Token(T_CONSTANT_ENCAPSED_STRING, "';'"), ')', ':', new Prephp_Token(T_STRING, 'null'), ')'));
break;
}
}
/**
* append token or stream to stream
*
* This function may either be passed a TokenStream, an array of token-like
* elements or a single token-like element.
* The array will be appended recursively (thus it can have sub-arrays.)
* A token-like element is either a Token or a single character mapable to
* a token. All other elements are dropped, *without* error message.
*
* @param mixed $tokenStream
* @return int number of appended tokens
*/
public function append($tokenStream)
{
if (!is_array($tokenStream)) {
$tokenStream = array($tokenStream);
}
$count = 0;
// number of appended tokens
foreach ($tokenStream as $token) {
// instanceof Token: append
if ($token instanceof Prephp_Token) {
$this->tokens[] = $token;
++$count;
} elseif (is_string($token)) {
$this->tokens[] = Prephp_Token::newCharToken($token);
++$count;
} elseif ($token instanceof Prephp_TokenStream) {
foreach ($token as $t) {
$this->tokens[] = $t;
++$count;
}
} elseif (is_array($token)) {
$count += $this->append($token);
}
// else: drop *without* error message
}
return $count;
}