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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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use Tebru\PhpType\TypeToken; |
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/** |
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* Class ArrayTypeAdapter |
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* |
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* @author Nate Brunette <[email protected]> |
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*/ |
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class ArrayTypeAdapter extends TypeAdapter |
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{ |
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/** |
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* A TypeAdapter cache keyed by raw type |
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* |
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* @var TypeAdapter[] |
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*/ |
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protected $adapters = []; |
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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($value)); |
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$enableScalarAdapters = $context->enableScalarAdapters(); |
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$typeAdapterProvider = $context->getTypeAdapterProvider(); |
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foreach ($value as $key => $item) { |
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if (!$enableScalarAdapters && ($item === null || is_scalar($item))) { |
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$itemValue = $item; |
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} else { |
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$type = TypeToken::createFromVariable($item); |
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$adapter = $this->adapters[$type->rawType] ?? $this->adapters[$type->rawType] = $typeAdapterProvider->getAdapter($type); |
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$itemValue = $adapter->read($item, $context); |
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} |
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$result[$arrayIsObject ? (string)$key : (int)$key] = $itemValue; |
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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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$arrayIsObject = is_string(key($value)); |
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$enableScalarAdapters = $context->enableScalarAdapters(); |
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$serializeNull = $context->serializeNull(); |
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$typeAdapterProvider = $context->getTypeAdapterProvider(); |
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$result = []; |
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foreach ($value as $key => $item) { |
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if ($item === null && !$serializeNull) { |
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continue; |
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} |
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if (!$enableScalarAdapters && is_scalar($item)) { |
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$result[$arrayIsObject ? (string)$key : (int)$key] = $item; |
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continue; |
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} |
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$itemValue = null; |
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$type = TypeToken::createFromVariable($item); |
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$adapter = $this->adapters[$type->rawType] ?? $this->adapters[$type->rawType] = $typeAdapterProvider->getAdapter($type); |
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$itemValue = $adapter->write($item, $context); |
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if ($itemValue === null && !$serializeNull) { |
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continue; |
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} |
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$result[$arrayIsObject ? (string)$key : (int)$key] = $itemValue; |
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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 true; |
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} |
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public function __sleep() |
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{ |
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return []; |
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} |
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} |
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tebru /
gson-php
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