049ce7ddc6
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
67 lines
1.2 KiB
Go
67 lines
1.2 KiB
Go
package php8
|
|
|
|
import (
|
|
"github.com/z7zmey/php-parser/internal/position"
|
|
"github.com/z7zmey/php-parser/pkg/ast"
|
|
"github.com/z7zmey/php-parser/pkg/conf"
|
|
"github.com/z7zmey/php-parser/pkg/errors"
|
|
"github.com/z7zmey/php-parser/pkg/token"
|
|
)
|
|
|
|
// Parser structure
|
|
type Parser struct {
|
|
Lexer *Lexer
|
|
currentToken *token.Token
|
|
rootNode ast.Vertex
|
|
errHandlerFunc func(*errors.Error)
|
|
builder *Builder
|
|
}
|
|
|
|
// NewParser creates and returns new Parser
|
|
func NewParser(lexer *Lexer, config conf.Config) *Parser {
|
|
p := &Parser{
|
|
Lexer: lexer,
|
|
errHandlerFunc: config.ErrorHandlerFunc,
|
|
}
|
|
p.builder = NewBuilder(position.NewBuilder(), p)
|
|
return p
|
|
}
|
|
|
|
func (p *Parser) Lex(lval *yySymType) int {
|
|
t := p.Lexer.Lex()
|
|
|
|
p.currentToken = t
|
|
lval.token = t
|
|
|
|
return int(t.ID)
|
|
}
|
|
|
|
func (p *Parser) Error(msg string) {
|
|
if p.errHandlerFunc == nil {
|
|
return
|
|
}
|
|
|
|
p.errHandlerFunc(errors.NewError(msg, p.currentToken.Position))
|
|
}
|
|
|
|
// Parse the php7 Parser entrypoint
|
|
func (p *Parser) Parse() int {
|
|
p.rootNode = nil
|
|
|
|
return yyParse(p)
|
|
}
|
|
|
|
// GetRootNode returns root node
|
|
func (p *Parser) GetRootNode() ast.Vertex {
|
|
return p.rootNode
|
|
}
|
|
|
|
// helpers
|
|
|
|
func lastNode(nn []ast.Vertex) ast.Vertex {
|
|
if len(nn) == 0 {
|
|
return nil
|
|
}
|
|
return nn[len(nn)-1]
|
|
}
|