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      int
	EQUALS      // ==
	LESSGREATER // > or <
	SUM         // +
	PRODUCT     // *
	PREFIX      // -X or !X
	CALL        // myFunction(X)
	INDEX       // myArray[index]
)

Operator precedences, assigned incrementally using iota

Types

type Parser

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

Parser parses a Monkey Lang string into an executable program statements

func New

func New(l *lexer.Lexer) *Parser

New initializes and returns a new Parser given a lexer

func (*Parser) Errors

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

Errors returns the Parser's slice of errors

func (*Parser) ParseProgram

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

ParseProgram parses the input Monkey Lang string and returns an AST Program node