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<?php |
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/** |
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* PHP Smart Analysis project 2015-2016 |
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* |
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* @author Patsura Dmitry https://github.com/ovr <[email protected]> |
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*/ |
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namespace PHPSA\Compiler\Expression; |
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use PHPSA\CompiledExpression; |
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use PHPSA\Context; |
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use PHPSA\Definition\ClassDefinition; |
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class StaticPropertyFetch extends AbstractExpressionCompiler |
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{ |
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protected $name = 'PhpParser\Node\Expr\StaticPropertyFetch'; |
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/** |
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* {expr}::${expr}; |
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* |
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* @param \PhpParser\Node\Expr\StaticPropertyFetch $expr |
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* @param Context $context |
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* @return CompiledExpression |
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*/ |
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protected function compile($expr, Context $context) |
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{ |
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$expressionCompiler = $context->getExpressionCompiler(); |
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$leftCE = $expressionCompiler->compile($expr->class); |
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if ($leftCE->isObject()) { |
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$name = $expr->name; |
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/** @var ClassDefinition $classDefinition */ |
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$classDefinition = $context->scope; |
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if (!$classDefinition->hasProperty($name, true)) { |
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$context->notice( |
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'undefined-scall', |
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sprintf('Static property $%s does not exist in %s scope', $name, $expr->class), |
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$expr |
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); |
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return new CompiledExpression(); |
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} |
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$property = $classDefinition->getPropertyStatement($name, true); |
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if (!$property->isStatic()) { |
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$context->notice( |
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'undefined-scall', |
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sprintf('Property $%s is not static but was called in a static way', $name), |
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$expr |
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); |
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} |
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return $expressionCompiler->compile($property); |
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} |
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$context->debug('Unknown static property fetch', $expr); |
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return new CompiledExpression(); |
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} |
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} |
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If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.