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());
}
protected function parseArray()
{
$token = $this->stream->getCurrent();
if ($token->is(TokenTypes::T_OPEN_BRACKET)) {
$openToken = TokenTypes::T_OPEN_BRACKET;
$closeToken = TokenTypes::T_CLOSE_BRACKET;
} else {
$openToken = TokenTypes::T_OPEN_BRACE;
$closeToken = TokenTypes::T_CLOSE_BRACE;
}
$arrayType = $token->is(TokenTypes::T_OPEN_BRACE) ? 'BRACE' : 'BRACKET';
$allowKey = $arrayType == 'BRACE';
$elements = [];
// $stack = [];
$first = true;
$this->stream->expect($openToken);
while (!$this->stream->test($closeToken)) {
if (!$first) {
$this->stream->expect(TokenTypes::T_COMMA, null, 'Array elements must be separate by comma.');
}
$key = $value = null;
$value = $this->parseExpression();
if ($this->stream->test(TokenTypes::T_COLON)) {
if (!$allowKey) {
throw new SyntaxException(sprintf('Vector array not allowed'));
}
$this->stream->expect(TokenTypes::T_COLON);
$key = $value;
$value = $this->parseExpression();
if (!$key instanceof Node\Expression\Name && !$key instanceof Node\Expression\Constant) {
throw new SyntaxException(sprintf('Invalid array key definition'));
}
}
$elements[] = [$key, $value];
$first = false;
}
$this->stream->expect($closeToken);
return new Node\Expression\ArrayNode($elements, $token->getLine());
}
