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27 lines
1.4 KiB
Markdown
27 lines
1.4 KiB
Markdown
Upgrading from PHP-Parser 3.x to 4.0
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====================================
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### PHP version requirements
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PHP-Parser now requires PHP 5.6 or newer to run. It is however still possible to *parse* PHP 5.2-5.5
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source code, while running on a newer version.
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### Changes to the node structure
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* Expression statements (`expr;`) are now represented using a `Stmt\Expression` node. Previously
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these statements were directly represented as their constituent expression.
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* The `name` subnode of `Param` has been renamed to `var` and now contains a `Variable` rather than
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a plain string.
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* The `name` subnode of `StaticVar` has been renamed to `var` and now contains a `Variable` rather
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than a plain string.
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* The `var` subnode of `ClosureUse` now contains a `Variable` rather than a plain string.
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* The `var` subnode of `Catch` now contains a `Variable` rather than a plain string.
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### Removed functionality
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* Removed `type` subnode on `Class`, `ClassMethod` and `Property` nodes. Use `flags` instead.
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* The `ClassConst::isStatic()` method has been removed. Constants cannot have a static modifier.
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* The `NodeTraverser` no longer accepts `false` as a return value from a `leaveNode()` method.
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`NodeTraverser::REMOVE_NODE` should be returned instead.
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* The XML serializer has been removed. As such, the classes `Serializer\XML`, and
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`Unserializer\XML`, as well as the interfaces `Serializer` and `Unserializer` no longer exist. |