94 lines
2.2 KiB
PHP
94 lines
2.2 KiB
PHP
<?php declare(strict_types = 1);
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namespace TheSeer\Tokenizer;
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class TokenCollection implements \ArrayAccess, \Iterator, \Countable {
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/** @var Token[] */
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private $tokens = [];
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/** @var int */
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private $pos;
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public function addToken(Token $token): void {
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$this->tokens[] = $token;
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}
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public function current(): Token {
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return \current($this->tokens);
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}
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public function key(): int {
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return \key($this->tokens);
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}
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public function next(): void {
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\next($this->tokens);
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$this->pos++;
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}
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public function valid(): bool {
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return $this->count() > $this->pos;
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}
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public function rewind(): void {
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\reset($this->tokens);
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$this->pos = 0;
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}
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public function count(): int {
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return \count($this->tokens);
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}
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public function offsetExists($offset): bool {
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return isset($this->tokens[$offset]);
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}
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/**
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* @throws TokenCollectionException
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*/
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public function offsetGet($offset): Token {
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if (!$this->offsetExists($offset)) {
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throw new TokenCollectionException(
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\sprintf('No Token at offest %s', $offset)
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);
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}
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return $this->tokens[$offset];
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}
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/**
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* @param Token $value
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*
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* @throws TokenCollectionException
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*/
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public function offsetSet($offset, $value): void {
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if (!\is_int($offset)) {
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$type = \gettype($offset);
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throw new TokenCollectionException(
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\sprintf(
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'Offset must be of type integer, %s given',
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$type === 'object' ? \get_class($value) : $type
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)
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);
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}
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if (!$value instanceof Token) {
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$type = \gettype($value);
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throw new TokenCollectionException(
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\sprintf(
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'Value must be of type %s, %s given',
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Token::class,
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$type === 'object' ? \get_class($value) : $type
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)
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);
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}
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$this->tokens[$offset] = $value;
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}
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public function offsetUnset($offset): void {
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unset($this->tokens[$offset]);
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}
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}
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