Improve error recovery in arrays

Similarly to missing semicolons, the error is not indicated in the
AST.

Fixes #512.

Error recovery for functions without body

Support recovery for param without variable

We store an Expr\Error for the variable in this case.

Recover from foreach without as

Improve error recovery in classes (#492)

Add support for list reference assignments

RFC: https://wiki.php.net/rfc/list_reference_assignment

PHP 7.3: Add support for trailing commas in calls

RFC: https://wiki.php.net/rfc/trailing-comma-function-calls

Fix duplicate switch comment assignment

Fixes #469.

Fix nNextFreeElement for arrays with trailing comma

Ugh.

Rename YYNLSTATES to numNonLeafStates

Fix trait alias to semi-reserved name parsing

This was missing the explicit construction of an Identifier node.

Preserve comments on empty blocks (#382)

Add attribute for namespace kinds (#417)

One of KIND_SEMICOLON or KIND_BRACED.

Add strict_types to lib code

[cs] use PHP 5.4 short array, since PHP 7.0 is min version

Add support for trailing comma in group use

Always use Identifier nodes

The parser will now always generate Identifier nodes (for
non-namespaced identifiers). This obsoletes the useIdentifierNodes
parser option.

Node

Always use Identifier nodes

The parser will now always generate Identifier nodes (for
non-namespaced identifiers). This obsoletes the useIdentifierNodes
parser option.

Node constructors still accepts strings and will implicitly create
an Identifier wrapper. Identifier implement __toString(), so that
outside of strict-mode many things continue to work without changes.

show more ...

Fix start attribute assignment for Error in ClassConstFetch

Handle "extends static" etc more gracefully

Use class_name production and emit the same error as for
"extends self" and "extends parent". It's weird that "extends
static" gives a dif

Handle "extends static" etc more gracefully

Use class_name production and emit the same error as for
"extends self" and "extends parent". It's weird that "extends
static" gives a different result than those two.

show more ...

Support recovery from invalid trailing commas

Recover from missing semicolons on statements

Use closures instead of methods for semantic actions

The dispatch using $this->{'reduceRule' . $rule}() is very expensive
because it involves
* One allocation when converting $rule

Use closures instead of methods for semantic actions

The dispatch using $this->{'reduceRule' . $rule}() is very expensive
because it involves
* One allocation when converting $rule to a string
* Another allocation when concatenating the two strings
* Lowercasing during the method call
* Various uncached method checks, e.g. visibility.

Using an array of closures for semantic action dispatch is
significantly more efficient.

show more ...

Use local var for $stackPos

We're accessing $this->stackPos a lot, and property accesses are
much more expensive than local variable acesses. Its cheaper to
use a local var and pass

Use local var for $stackPos

We're accessing $this->stackPos a lot, and property accesses are
much more expensive than local variable acesses. Its cheaper to
use a local var and pass it as an argument to semantic actions.

show more ...

Drop useNopStatements option

Don't require useNopStatements=false for format preservation

Instead assign attributes on Nop nodes and in the pretty printer
specially handle end<start offsets. It's a somewhat weird ca

Don't require useNopStatements=false for format preservation

Instead assign attributes on Nop nodes and in the pretty printer
specially handle end<start offsets. It's a somewhat weird case,
but not wrong per se given the meaning the offsets have.

show more ...