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<?php |
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/* |
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* Copyright (c) Nate Brunette. |
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* Distributed under the MIT License (http://opensource.org/licenses/MIT) |
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*/ |
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declare(strict_types=1); |
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namespace Tebru\Gson\TypeAdapter; |
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use Tebru\Gson\Context\ReaderContext; |
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use Tebru\Gson\Context\WriterContext; |
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use Tebru\Gson\Exception\JsonSyntaxException; |
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use Tebru\Gson\TypeAdapter; |
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/** |
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* Class TypedArrayTypeAdapter |
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* |
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* @author Nate Brunette <[email protected]> |
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*/ |
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class TypedArrayTypeAdapter extends TypeAdapter |
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{ |
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/** |
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* @var TypeAdapter |
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*/ |
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protected $valueTypeAdapter; |
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/** |
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* @var bool |
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*/ |
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private $stringKeys; |
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/** |
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* Constructor |
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* |
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* @param TypeAdapter $valueTypeAdapter |
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* @param bool $stringKeys |
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*/ |
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public function __construct(TypeAdapter $valueTypeAdapter, bool $stringKeys) |
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{ |
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$this->valueTypeAdapter = $valueTypeAdapter; |
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$this->stringKeys = $stringKeys; |
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} |
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/** |
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* Read the next value, convert it to its type and return it |
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* |
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* @param array|null $value |
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* @param ReaderContext $context |
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* @return array|null |
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*/ |
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public function read($value, ReaderContext $context): ?array |
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{ |
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if ($value === null) { |
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return null; |
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} |
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if (!is_array($value)) { |
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throw new JsonSyntaxException(sprintf('Could not parse json, expected array or object but found "%s"', gettype($value))); |
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} |
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$result = []; |
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$arrayIsObject = is_string(key($value)); |
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if ($arrayIsObject !== $this->stringKeys) { |
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throw new JsonSyntaxException( |
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sprintf( |
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'Expected %s, but found %s for key', |
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$this->stringKeys ? 'string' : 'integer', |
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$arrayIsObject ? 'string' : 'integer' |
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) |
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); |
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} |
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foreach ($value as $key => $item) { |
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$itemValue = $this->valueTypeAdapter->read($item, $context); |
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if ($this->stringKeys) { |
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$result[(string)$key] = $itemValue; |
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} else { |
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$result[] = $itemValue; |
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} |
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} |
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return $result; |
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} |
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/** |
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* Write the value to the writer for the type |
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* |
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* @param array|null $value |
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* @param WriterContext $context |
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* @return array|null |
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*/ |
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public function write($value, WriterContext $context): ?array |
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{ |
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if ($value === null) { |
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return null; |
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} |
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$serializeNull = $context->serializeNull(); |
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$result = []; |
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$arrayIsObject = is_string(key($value)); |
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if ($arrayIsObject !== $this->stringKeys) { |
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throw new JsonSyntaxException( |
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sprintf( |
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'Expected %s, but found %s for key', |
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$this->stringKeys ? 'string' : 'integer', |
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$arrayIsObject ? 'string' : 'integer' |
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) |
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); |
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} |
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foreach ($value as $key => $item) { |
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if ($item === null && !$serializeNull) { |
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continue; |
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} |
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$itemValue = $this->valueTypeAdapter->write($item, $context); |
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if ($itemValue === null && !$serializeNull) { |
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continue; |
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} |
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if ($this->stringKeys) { |
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$result[(string)$key] = $itemValue; |
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} else { |
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$result[] = $itemValue; |
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} |
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} |
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return $result; |
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} |
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/** |
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* Return true if object can be written to disk |
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* |
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* @return bool |
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*/ |
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public function canCache(): bool |
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{ |
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return $this->valueTypeAdapter->canCache(); |
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} |
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} |
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tebru /
gson-php
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