protected function getMissingSymbol($input, $e, $expectedTokenType, $follow)
{
$tokenText = null;
if ($expectedTokenType == TokenConst::$EOF) {
$tokenText = "<missing EOF>";
} else {
$tokenNames = $this->getTokenNames();
$tokenText = "<missing " . $tokenNames[$expectedTokenType] . ">";
}
$t = CommonToken::forTypeAndText($expectedTokenType, $tokenText);
$current = $input->LT(1);
if ($current->getType() == TokenConst::$EOF) {
$current = $this->input->LT(-1);
}
$t->line = $current->getLine();
$t->charPositionInLine = $current->getCharPositionInLine();
$t->channel = $DEFAULT_TOKEN_CHANNEL;
return $t;
}
protected function extractInformationFromTreeNodeStream($input)
{
$nodes = $input;
$this->node = $nodes->LT(1);
$adaptor = $nodes->getTreeAdaptor();
$payload = $adaptor->getToken($this->node);
if ($payload != null) {
$this->token = $payload;
if ($payload->getLine() <= 0) {
// imaginary node; no line/pos info; scan backwards
$i = -1;
$priorNode = $nodes->LT($i);
while ($priorNode != null) {
$priorPayload = $adaptor->getToken($priorNode);
if ($priorPayload != null && $priorPayload->getLine() > 0) {
// we found the most recent real line / pos info
$this->line = $priorPayload->getLine();
$this->charPositionInLine = $priorPayload->getCharPositionInLine();
$this->approximateLineInfo = true;
break;
}
--$i;
$priorNode = $nodes->LT($i);
}
} else {
// node created from real token
$this->line = $payload->getLine();
$this->charPositionInLine = $payload->getCharPositionInLine();
}
} else {
if ($this->node instanceof Tree) {
$this->line = $this->node->getLine();
$this->charPositionInLine = $this->node->getCharPositionInLine();
if ($this->node instanceof CommonTree) {
$this->token = $this->node->token;
}
} else {
$type = $adaptor->getType($this->node);
$text = $adaptor->getText($this->node);
$this->token = CommonToken::forTypeAndText($type, $text);
}
}
}