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<?php |
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namespace Cerbero\JsonParser; |
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use Cerbero\JsonParser\Decoders\ConfigurableDecoder; |
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use Cerbero\JsonParser\Exceptions\SyntaxException; |
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use Cerbero\JsonParser\Sources\Source; |
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use IteratorAggregate; |
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use Traversable; |
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/** |
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* The JSON parser. |
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* |
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* @implements IteratorAggregate<string|int, mixed> |
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*/ |
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final class Parser implements IteratorAggregate |
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{ |
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/** |
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* The decoder handling potential errors. |
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* |
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* @var ConfigurableDecoder |
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*/ |
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private ConfigurableDecoder $decoder; |
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/** |
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* Instantiate the class. |
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* |
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* @param Lexer $lexer |
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* @param Config $config |
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*/ |
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143 |
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public function __construct(private Lexer $lexer, private Config $config) |
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{ |
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143 |
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$this->decoder = new ConfigurableDecoder($config); |
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} |
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/** |
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* Instantiate the class statically |
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* |
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* @param Source $source |
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* @return self |
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*/ |
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143 |
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public static function for(Source $source): self |
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{ |
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143 |
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return new self(new Lexer($source), $source->config()); |
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} |
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/** |
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* Retrieve the JSON fragments |
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* |
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* @return Traversable<string|int, mixed> |
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*/ |
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public function getIterator(): Traversable |
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{ |
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$state = new State($this->config->pointers); |
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foreach ($this->lexer as $token) { |
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if (!$token->matches($state->expectedToken)) { |
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throw new SyntaxException($token, $this->lexer->position()); |
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} |
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$state->mutateByToken($token); |
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if (!$token->endsChunk() || $state->tree()->isDeep()) { |
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continue; |
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} |
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if ($state->hasBuffer()) { |
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/** @var string|int $key */ |
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$key = $this->decoder->decode($state->key()); |
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$value = $this->decoder->decode($state->value()); |
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yield $key => $state->callPointer($value, $key); |
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} |
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if ($state->canStopParsing()) { |
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break; |
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} |
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} |
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} |
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/** |
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* Retrieve the parsing progress |
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* |
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* @return Progress |
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*/ |
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public function progress(): Progress |
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{ |
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return $this->lexer->progress(); |
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} |
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} |
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cerbero90 /
json-parser
