mirror of
https://github.com/danog/PHP-Parser.git
synced 2024-11-26 11:54:52 +01:00
78 lines
3.9 KiB
Markdown
78 lines
3.9 KiB
Markdown
Upgrading from PHP-Parser 3.x to 4.0
|
|
====================================
|
|
|
|
### PHP version requirements
|
|
|
|
PHP-Parser now requires PHP 7.0 or newer to run. It is however still possible to *parse* PHP 5.2-5.6
|
|
source code, while running on a newer version.
|
|
|
|
HHVM is no longer actively supported.
|
|
|
|
### Changes to the node structure
|
|
|
|
* Many subnodes that previously held simple strings now store `Identifier` nodes instead (or
|
|
`VarLikeIdentifier` nodes if they have form `$ident`). The constructors of the affected nodes will
|
|
automatically convert strings to `Identifier`s and `Identifier`s implement `__toString()`. As such
|
|
some code continues to work without changes, but anything using `is_string()`, type-strict
|
|
comparisons or strict-mode may require adjustment. The following is an exhaustive list of all
|
|
affected subnodes:
|
|
|
|
* `Const_::$name`
|
|
* `NullableType::$type` (for simple types)
|
|
* `Param::$type` (for simple types)
|
|
* `Expr\ClassConstFetch::$name`
|
|
* `Expr\Closure::$returnType` (for simple types)
|
|
* `Expr\MethodCall::$name`
|
|
* `Expr\PropertyFetch::$name`
|
|
* `Expr\StaticCall::$name`
|
|
* `Expr\StaticPropertyFetch::$name` (uses `VarLikeIdentifier`)
|
|
* `Stmt\Class_::$name`
|
|
* `Stmt\ClassMethod::$name`
|
|
* `Stmt\ClassMethod::$returnType` (for simple types)
|
|
* `Stmt\Function_::$name`
|
|
* `Stmt\Function_::$returnType` (for simple types)
|
|
* `Stmt\Goto_::$name`
|
|
* `Stmt\Interface_::$name`
|
|
* `Stmt\Label::$name`
|
|
* `Stmt\PropertyProperty::$name` (uses `VarLikeIdentifier`)
|
|
* `Stmt\TraitUseAdaptation\Alias::$method`
|
|
* `Stmt\TraitUseAdaptation\Alias::$newName`
|
|
* `Stmt\TraitUseAdaptation\Precedence::$method`
|
|
* `Stmt\Trait_::$name`
|
|
* `Stmt\UseUse::$alias`
|
|
|
|
* Expression statements (`expr;`) are now represented using a `Stmt\Expression` node. Previously
|
|
these statements were directly represented as their constituent expression.
|
|
* The `name` subnode of `Param` has been renamed to `var` and now contains a `Variable` rather than
|
|
a plain string.
|
|
* The `name` subnode of `StaticVar` has been renamed to `var` and now contains a `Variable` rather
|
|
than a plain string.
|
|
* The `var` subnode of `ClosureUse` now contains a `Variable` rather than a plain string.
|
|
* The `var` subnode of `Catch_` now contains a `Variable` rather than a plain string.
|
|
* The `alias` subnode of `UseUse` is now `null` if no explicit alias is given. As such,
|
|
`use Foo\Bar` and `use Foo\Bar as Bar` are now represented differently. The `getAlias()` method
|
|
can be used to get the effective alias, even if it is not explicitly given.
|
|
|
|
### Miscellaneous
|
|
|
|
* The indentation handling in the pretty printer has been changed (this is only relevant if you
|
|
extend the pretty printer). Previously indentation was automatic, and parts were excluded using
|
|
`pNoindent()`. Now no-indent is the default and newlines that require indentation should use
|
|
`$this->nl`.
|
|
|
|
### Removed functionality
|
|
|
|
* Removed `type` subnode on `Class_`, `ClassMethod` and `Property` nodes. Use `flags` instead.
|
|
* The `ClassConst::isStatic()` method has been removed. Constants cannot have a static modifier.
|
|
* The `NodeTraverser` no longer accepts `false` as a return value from a `leaveNode()` method.
|
|
`NodeTraverser::REMOVE_NODE` should be returned instead.
|
|
* The `Node::setLine()` method has been removed. If you really need to, you can use `setAttribute()`
|
|
instead.
|
|
* The misspelled `Class_::VISIBILITY_MODIFER_MASK` constant has been dropped in favor of
|
|
`Class_::VISIBILITY_MODIFIER_MASK`.
|
|
* The XML serializer has been removed. As such, the classes `Serializer\XML`, and
|
|
`Unserializer\XML`, as well as the interfaces `Serializer` and `Unserializer` no longer exist.
|
|
* The `BuilderAbstract` class has been removed. It's functionality is moved into `BuilderHelpers`.
|
|
However, this is an internal class and should not be used directly.
|
|
* The `Autoloader` class has been removed in favor of relying on the Composer autoloader.
|