public function subparse($test = null)
{
$nodes = [];
while (!$this->stream->isEOF()) {
$token = $this->stream->getToken();
$node = null;
if ($token->test([TokenTypes::T_CODE_BLOCK, TokenTypes::T_EOF])) {
$this->stream->next();
continue;
}
if ($test && call_user_func($test, $this->stream)) {
break;
}
$found = false;
foreach ($this->parsers as $parser) {
if ($parser->canParse($token, $this)) {
$found = true;
$node = $parser->parse($token, $this);
break;
}
}
if (!$found) {
throw new Exception('Syntax error, invalid syntax \'%s\' (%s) on line %d column %d', $token->getValue(), $token->getTokenName(), $token->getLine(), $token->getColumn());
}
if ($node) {
$nodes[] = $node;
}
}
return new Node($nodes, [], 0);
}
public function testTokenStream()
{
$stream = new TokenStream([new Token(null, 'Hello', TokenTypes::T_NAME, 0, 0), new Token(null, '"World"', TokenTypes::T_STR, 0, 0), new Token(null, '', TokenTypes::T_EOF, 0, 0)]);
$this->assertTrue($stream->test(TokenTypes::T_NAME, 'Hello'));
$this->assertEquals(new Token(null, '"World"', TokenTypes::T_STR, 0, 0), $stream->nextIf(TokenTypes::T_STR));
$this->assertEquals(new Token(null, '"World"', TokenTypes::T_STR, 0, 0), $stream->getCurrent());
$this->assertEquals(new Token(null, '"World"', TokenTypes::T_STR, 0, 0), $stream->expect(TokenTypes::T_STR));
$this->assertTrue($stream->isEOF());
}