PHP 8 (#1)

PHP 8 Update

- nullsafe operator (?->)
- Remove (real) cast
- Named arguments
- Remove (unset) cast
- Remove {} access
- match expression
- Union types in type hints and static typehint
- Block catch without variable
- Trailing comma in parameter lists
- throw can be used as an expression
- Concatenation precedence
- Declaring properties in the constructor
- Attributes
- Names in the namespace are treated as a single token
- Trailing comma in closure use list
- Check that ::class on object works
- Deferencable changes and arbitrary expressions in new/instanceof

pkg/parser/parser.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/z7zmey/php-parser/internal/php5"
 	"github.com/z7zmey/php-parser/internal/php7"
+	"github.com/z7zmey/php-parser/internal/php8"
 	"github.com/z7zmey/php-parser/internal/scanner"
 	"github.com/z7zmey/php-parser/pkg/ast"
 	"github.com/z7zmey/php-parser/pkg/conf"
@@ -20,6 +21,9 @@ var (
 
 	php7RangeStart = &version.Version{Major: 7}
 	php7RangeEnd   = &version.Version{Major: 7, Minor: 4}
+
+	php8RangeStart = &version.Version{Major: 8}
+	php8RangeEnd   = &version.Version{Major: 8, Minor: 1}
 )
 
 // Parser interface
@@ -49,5 +53,12 @@ func Parse(src []byte, config conf.Config) (ast.Vertex, error) {
 		return parser.GetRootNode(), nil
 	}
 
+	if config.Version.InRange(php8RangeStart, php8RangeEnd) {
+		lexer := php8.NewLexer(src, config)
+		parser = php8.NewParser(lexer, config)
+		parser.Parse()
+		return parser.GetRootNode(), nil
+	}
+
 	return nil, ErrVersionOutOfRange
 }