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XP AST ChangeLog

?.?.? / ????-??-??

12.0.0 / 2026-02-14

  • Merged PR #57: Add syntactic support for partial function application (@thekid)

11.8.0 / 2025-12-21

  • Added PHP 8.6 to the test matrix following the Nov 2025 PHP 8.5 release (@thekid)
  • Made lang.ast.syntax.PHP::type0() public. This method parses a single type without support for unions and intersections (@thekid)

11.7.1 / 2025-07-06

  • Fixed more than one annotation on an element only yielding the last. (@thekid)

11.7.0 / 2025-06-22

11.6.0 / 2025-05-28

11.5.0 / 2025-04-05

11.4.0 / 2025-01-26

  • Merged PR #55: Add suport for heredoc (and its nowdoc variant) - @thekid

11.3.1 / 2024-11-02

  • Fixed strings enclosed in backticks - @thekid

11.3.0 / 2024-08-26

11.2.1 / 2024-08-11

  • Fixed grouped use statements containing aliases not scoped correctly (@thekid)

11.2.0 / 2024-08-04

  • Merged PR #53: Add syntactic support for T<string>::class - @thekid

11.1.0 / 2024-06-15

  • Merged PR #45: Implement property hooks syntax - @thekid

11.0.1 / 2024-03-24

  • Fixed %= (modulo-assignment) operator - @thekid

11.0.0 / 2024-03-23

  • Merged PR #51: Logical Operators and Assignment Expressions - @thekid
  • Made this library compatible with XP 12, droppping support for all but the latest PHP 7 version. Minimum PHP version required is now 7.4! (@thekid)

10.3.1 / 2024-01-06

  • Added PHP 8.4 to the test matrix - @thekid
  • Fixed parsing captures and return types for closures - @thekid

10.3.0 / 2023-10-06

  • Merged PR #49: Record starting line numbers for multi-line nodes (@thekid)

10.2.3 / 2023-10-01

  • Fixed Signature::insert() - @thekid
  • Refactored code base to use the class loading mechanism instead of the Package class from lang.reflect. See xp-framework/rfc#338 (@thekid)

10.2.2 / 2023-07-29

  • Fixed legacy array() syntax being parsed into an invocation instead of an array literal (@thekid)

10.2.1 / 2023-06-03

  • Fix trailing commas in annotation lists - @thekid

10.2.0 / 2023-05-27

  • Merged PR #47: Remove holder property for members - @thekid

10.1.0 / 2023-05-21

  • Merged PR #46: Implement returning by reference from methods - @thekid

10.0.0 / 2023-04-08

  • Heads up: Instances of lang.ast.nodes.Variable can contain the name as well as other variables or expressions. The name property is renamed to pointer to reflect this change. (@thekid)
  • Merged PR #44: Parse expressions like $this->{$member} into lang.ast.nodes.Expression instances. (@thekid)

9.2.7 / 2023-03-05

  • Fixed various expressions inside braces - @thekid

9.2.6 / 2023-02-19

  • Fixed relative type names with namespace imports - @thekid

9.2.5 / 2023-02-19

  • Fixed issue #43: Exponent notation - @thekid

9.2.4 / 2023-02-12

  • Merged PR #41: Migrate to new testing library - @thekid
  • Fixed lang.ast.nodes.TypeDeclaration::declaration() for generics (@thekid)
  • Fixed lang.ast.types.IsGeneric::literal() not returning a fully qualified type name (@thekid)
  • Fixed endless loop with syntax errors in new - @thekid

9.2.3 / 2023-02-05

  • Fixed cloning of lang.ast.Language instances - @thekid

9.2.2 / 2022-12-18

  • Fixed line numbers for match conditions, case labels and catch statements (@thekid)

9.2.1 / 2022-12-04

  • Fixed type parsing in type casts:
    • Arrays, maps and generics with nullables, e.g. (array<?int>)$v
    • Intersection and union types, e.g. (int|string)$v. (@thekid)

9.2.0 / 2022-11-12

  • Added support for omitting expressions in destructuring assignments, e.g. list($a, , $b)= $expr or [, $a]= $expr. (@thekid)

9.1.0 / 2022-11-06

  • Added support for generic wildcards such as Filter<?>, resolving ambiguity with nullable types (@thekid)
  • Resolved ambiguity between short open tag and nullables in generics, e.g. Filter<?int>. (@thekid)

9.0.0 / 2022-11-06

  • Merged PR #40: Create generic member in lang.ast.nodes.Signature (@thekid)
  • Merged PR #39: Refactor type declaration, parents, interfaces to lang.ast.Type instances (@thekid)

8.2.0 / 2022-09-03

8.1.0 / 2022-05-14

  • Merged PR #37: Implement readonly modifier for classes - @thekid

8.0.1 / 2022-04-03

8.0.0 / 2022-01-07

This major release promotes annotations and comments to Node subclasses, making it easy to implement different emitter scenarios for them. For example, classes to be used with the XP Framework will have meta information attached to them, while others will not, reducing their dependencies.

  • Merged PR #35: Support static closures (static fn() => ...) - @thekid
  • Implemented xp-framework/rfc#341: Drop XP 9 compatibility - @thekid
  • Merged PR #34: Refactor annotations from associative arrays to instances of the lang.ast.nodes.Annotations class. (@thekid)
  • Merged PR #33: Refactor apidoc comments from bare strings to instances of the lang.ast.nodes.Comment class. (@thekid)

7.7.2 / 2021-12-08

  • Fixed PHP 8.2 warning about dynamic properties - @thekid

7.7.1 / 2021-10-21

  • Made library compatible with XP 11 - @thekid

7.7.0 / 2021-10-06

  • Merged PR #32: Support new T(...) callable syntax - @thekid

7.6.2 / 2021-10-01

  • Fixed #31: Call to undefined method lang\ast\syntax\PHP::expecting() (@thekid)

7.6.1 / 2021-09-26

  • Fixed use statement not supporting multiple imports separated by ,. (@thekid)
  • Fixed importing global classes into namespaces, e.g. use Traversable. (@thekid)

7.6.0 / 2021-09-11

7.5.1 / 2021-09-06

  • Fixed Expected ":", have "::" in switch for class constants - @thekid

7.5.0 / 2021-08-03

7.4.0 / 2021-07-12

  • Merged PR #27: Implement first-class callable syntax - @thekid

7.3.0 / 2021-05-22

  • Merged PR #25: Add support for declare construct - @thekid

7.2.0 / 2021-04-25

  • Merged PR #24: Add support for never return type - @thekid

7.1.1 / 2021-04-18

  • Fixed yield without expression in various situations - @thekid

7.1.0 / 2021-03-13

  • Merged PR #23: Add syntactic support for PHP 8.1 enums. Implementation in the compiler is in pull request xp-framework/compiler#106 (@thekid)

7.0.4 / 2021-03-07

7.0.3 / 2021-02-22

  • Fixed children() accessor for match expressions and conditions, see xp-framework/compiler#101 (@thekid)
  • Fixed PHP 8.1 compatiblity by ensuring we do not pass NULL to strlen() (@thekid)

7.0.2 / 2021-01-04

  • Fixed argument parser to queue correctly when handling ambiguity between named arguments and global constants (see xp-framework/compiler#98) (@thekid)

7.0.1 / 2021-01-03

7.0.0 / 2020-11-28

This major release removes quite a bit of legacy: XP and Hack language annotations as well as support for curly braces as string or array offsets, bringing it in line with PHP 8.

  • Fixed multiple semicolons yielding syntax errors, skip them instead (@thekid)
  • Removed support for using curly braces as offset (e.g. $value{0}) (@thekid)
  • Merged PR #22: Stream tokens directly instead of using if/else cascade (@thekid)
  • Merged PR #18: Allow match without expression: match { ... }. See https://wiki.php.net/rfc/match_expression_v2#allow_dropping_true (@thekid)
  • Merged PR #17: Refactor parsing to allow blocks anywhere an expression is allowed. This not only allows fn() => { ... } but also using blocks in match expressions. (@thekid)
  • Merged PR #21: Remove legacy XP annotations (#[@annotation]) - @thekid
  • Merged PR #19: Remove support for Hack language annotations - @thekid
  • Merged PR #20: Remove transformations API - @thekid

6.1.0 / 2020-11-22

6.0.0 / 2020-10-09

This major release removes the starting <?php token from the stream of returned tokens: One less case to handle.

  • Merged PR #16: Omit start token from stream - @thekid

5.4.0 / 2020-09-29

  • Merged PR #9: Deprecate hacklang-style annotations in favor PHP 8 attributes. This is step 2 of xp-framework/compiler#86 (@thekid)

5.3.0 / 2020-09-27

  • Fixed named arguments using keywords - @thekid
  • Changed tokens to yield variables including the leading $ sign (@thekid)
  • Fixed visitor API for unary prefix (e.g. ++$i) and unary suffix (e.g. $i++) operators (@thekid)

5.2.0 / 2020-09-12

5.1.0 / 2020-09-09

  • Merged PR #12: Improve tokenizer performance - @thekid
  • Merged PR #11: Yield comments from tokenizer - @thekid
  • Merged PR #10: Fix PHP 8 native syntax - @thekid

5.0.0 / 2020-07-20

This release integrates the parser into this library, making it usable in a standalone way to create ASTs from string and/or stream inputs. Now that the PHP project has decided on a final attribute syntax, this library also supports it.

  • Merged PR #8: Add support for match expression - @thekid
  • Added builtin support for null-safe instance operator ?->, see https://wiki.php.net/rfc/nullsafe_operator & xp-framework/compiler#9 (@thekid)
  • Merged PR #7: PHP8 attributes support - @thekid
  • Integrated throw expressions, see xp-framework/compiler#85 - @thekid
  • Fixed missing support for insteadof trait keyword - @thekid
  • Merged PR #1: Integrate parser
    • Migrate tokenizer, parser and language from xp-framework/compiler
    • Added enclosing type to constants, properties and methods
    • Added lang.ast.Node::is() method to check for node kind
    • Added lang.ast.nodes.TypeDeclaration::declare() in favor of inject.
    • Added new parse tree API
    • Added new visitor API
    • Refactored types API to dedicated package lang.ast.types
    • Added dedicated classes for nullable, literal and value types (@thekid)

4.0.0 / 2019-11-30

This major release drops PHP 5 support - the minimum required PHP version is now 7.0.0.

3.0.3 / 2019-11-30

3.0.2 / 2019-10-04

  • Fixed issue #5: Call to a member function children() on null - @thekid

3.0.1 / 2019-09-22

  • Fixed xp-framework/compiler#71: Call to a member function children() on array, which occured with if, catch and switch statements as well as for array literals. (@thekid)

3.0.0 / 2019-09-09

This major release changes the transformation API: Functions are now passed the code generation process and the node they've registered for.

  • Heads up: Changed transformation API - functions must accept a reference to the code generation process as their first parameter. (@thekid)
  • Heads up: Added kind to UnaryExpression constructor which is either prefix or suffix, supporting ++$i as well as $i++. (@thekid)
  • Merged PR #4: Add Node class replacing Element and Value - @thekid

2.0.0 / 2019-09-06

This release overhauls the AST API greatly to make it more useable for creating syntax trees programmatically.

  • Merged PR #3: Allow multiple transformations per kind - @thekid
  • Heads up: Removed Symbol and Node classes, which belong to the compiler internals now only (@thekid)
  • Merged PR #2: Refactor AST. This makes programmatic AST creation far easier and improves on memory usage. (@thekid)

1.4.0 / 2019-08-10

  • Made compatible with PHP 7.4 - refrain using {} for string offsets (@thekid)

1.3.0 / 2018-04-02

  • Added lang.ast.nodes.UsingStatement in preparation for adding support for the using statement in xp-framework/compiler#33 (@thekid)

1.2.0 / 2018-03-30

  • Added type to class constants - @thekid

1.1.0 / 2018-03-29

  • Added support for mixed type - @thekid

1.0.1 / 2018-03-29

  • Fixed nullable value types being emitted incorrectly - @thekid

1.0.0 / 2017-11-05

This release forms the first as a separate library.