parser

Documentation

Index

• Constants
• type Parser
  • func New(l *lexer.Lexer) *Parser
  • func (p *Parser) Errors() []string
  • func (p *Parser) ParseProgram() *ast.Program

Constants

const (
	LOWEST      uint
	EQUALS      // ==
	LESSGREATER // > or <
	SUM         // +
	PRODUCT     // *
	PREFIX      // !X or -X
	CALL        // myFunction(X)
	INDEX       // array[index]
)

Types

type Parser

type Parser struct {
	// contains filtered or unexported fields
}

Parser is a recursive decent parser that analyzes the sequence of tokens to generate the AST

func New

func New(l *lexer.Lexer) *Parser

New initialize and returns a new parser

func (*Parser) Errors

func (p *Parser) Errors() []string

func (*Parser) ParseProgram

func (p *Parser) ParseProgram() *ast.Program

ParseProgram recursively parses the tokens and returns the root node