parser

Documentation

Index

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

Constants

const (
	PrecendenceLowest int
	PrecedenceEquals
	PrecedenceLessGreater
	PrecedenceSum
	PrecedenceProduct
	PrecedencePrefix
	PrecedenceCall
	PrecedencePostFix
)

ordering for expression evaluation

Types

type ParseError

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

Represents an error that occured while parsing

func (ParseError) Error

func (pe ParseError) Error() string

type Parser

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

The parser itself. Stores the current state of the parser

func New

func New(l *lexer.Lexer) *Parser

func (*Parser) Errors

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

Returns any errors that occured during parsing

func (*Parser) ParseProgram

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

Parses the entire program, returning the abstract syntax tree