package php7 import ( "io" "github.com/z7zmey/php-parser/errors" "github.com/z7zmey/php-parser/node" "github.com/z7zmey/php-parser/parser" "github.com/z7zmey/php-parser/scanner" ) func (lval *yySymType) Token(t *scanner.Token) { lval.token = t } // Parser structure type Parser struct { *scanner.Lexer path string currentToken *scanner.Token positionBuilder *parser.PositionBuilder rootNode node.Node comments parser.Comments positions parser.Positions } // NewParser creates and returns new Parser func NewParser(src io.Reader, path string) *Parser { lexer := scanner.NewLexer(src, path) return &Parser{ lexer, path, nil, nil, nil, nil, nil, } } // Lex proxy to lexer Lex func (l *Parser) Lex(lval *yySymType) int { t := l.Lexer.Lex(lval) l.currentToken = lval.token return t } func (l *Parser) Error(msg string) { l.Lexer.Errors = append(l.Lexer.Errors, errors.NewError(msg, l.currentToken.Position)) } // Parse the php7 Parser entrypoint func (l *Parser) Parse() int { // init l.Lexer.Errors = nil l.rootNode = nil l.comments = parser.Comments{} l.positions = parser.Positions{} l.positionBuilder = &parser.PositionBuilder{ Positions: &l.positions, PositionPool: &l.PositionPool, } // parse return yyParse(l) } // GetPath return path to file func (l *Parser) GetPath() string { return l.path } // GetRootNode returns root node func (l *Parser) GetRootNode() node.Node { return l.rootNode } // GetErrors returns errors list func (l *Parser) GetErrors() []*errors.Error { return l.Lexer.Errors } // GetComments returns comments list func (l *Parser) GetComments() parser.Comments { return l.comments } // GetPositions returns positions list func (l *Parser) GetPositions() parser.Positions { return l.positions } // helpers func lastNode(nn []node.Node) node.Node { if len(nn) == 0 { return nil } return nn[len(nn)-1] } func firstNode(nn []node.Node) node.Node { return nn[0] } func isDollar(r rune) bool { return r == '$' } func (p *Parser) returnTokenToPool(yyDollar []yySymType, yyVAL *yySymType) { for i := 1; i < len(yyDollar); i++ { if yyDollar[i].token != nil { p.TokenPool.Put(yyDollar[i].token) p.PositionPool.Put(yyDollar[i].token.Position) } yyDollar[i].token = nil } yyVAL.token = nil }