/**
* Parses a function name from the given tokenizer and returns the string
* literal representing the function name. If no valid token exists in the
* token stream, this method will throw an exception.
*
* @return string
* @throws PHP_Depend_Parser_UnexpectedTokenException When the next available
* token does not represent a valid php function name.
* @throws PHP_Depend_Parser_TokenStreamEndException When there is no next
* token available in the given token stream.
*/
public function parse()
{
switch ($this->_tokenizer->peek()) {
case PHP_Depend_TokenizerI::T_STRING:
case PHP_Depend_TokenizerI::T_USE:
case PHP_Depend_TokenizerI::T_GOTO:
case PHP_Depend_TokenizerI::T_NULL:
case PHP_Depend_TokenizerI::T_SELF:
case PHP_Depend_TokenizerI::T_TRUE:
case PHP_Depend_TokenizerI::T_FALSE:
case PHP_Depend_TokenizerI::T_NAMESPACE:
case PHP_Depend_TokenizerI::T_DIR:
case PHP_Depend_TokenizerI::T_NS_C:
case PHP_Depend_TokenizerI::T_PARENT:
$token = $this->_tokenizer->next();
$this->_tokenStack->add($token);
return $token->image;
case PHP_Depend_TokenizerI::T_EOF:
throw new PHP_Depend_Parser_TokenStreamEndException($this->_tokenizer);
}
throw new PHP_Depend_Parser_UnexpectedTokenException($this->_tokenizer->next(), $this->_tokenizer->getSourceFile());
}
/**
* This method will consume all comment tokens from the token stream.
*
* @return void
*/
private function _consumeComments()
{
$type = $this->_tokenizer->peek();
while ($type == self::T_COMMENT || $type == self::T_DOC_COMMENT) {
$this->_tokenStack->add($this->_tokenizer->next());
$type = $this->_tokenizer->peek();
}
}
/**
* This method will consume the next token in the token stream. It will
* throw an exception if the type of this token is not identical with
* <b>$tokenType</b>.
*
* @param integer $tokenType The next expected token type.
*
* @return PHP_Depend_Token
*/
protected function consumeToken($tokenType)
{
$token = $this->tokenizer->next();
if ($token === self::T_EOF) {
throw new PHP_Depend_Parser_TokenStreamEndException($this->tokenizer);
} else {
if ($token->type == $tokenType) {
return $this->_tokenStack->add($token);
}
}
throw new PHP_Depend_Parser_UnexpectedTokenException($token, $this->tokenizer->getSourceFile());
}
/**
* testPopOnRootReturnsExpectedTokenArrayWithAllTokens
*
* @return void
*/
public function testPopOnRootReturnsExpectedTokenArrayWithAllTokens()
{
$stack = new PHP_Depend_Parser_TokenStack();
$stack->push();
$expected = array($stack->add($this->createToken()), $stack->add($this->createToken()));
$stack->push();
$expected[] = $stack->add($this->createToken());
$expected[] = $stack->add($this->createToken());
$stack->pop();
self::assertSame($expected, $stack->pop());
}