parser

Documentation

Index

• Constants
• type AndExpr
  • func (e *AndExpr) Evaluate(cols []string, row value.Row) (bool, error)
  • func (e *AndExpr) GetTargetCols() []string
• type ColExpr
• type ComparisonExpr
  • func (e *ComparisonExpr) Evaluate(cols []string, row value.Row) (bool, error)
  • func (e *ComparisonExpr) GetTargetCols() []string
• type Expr
• type FuncExpr
• type GroupBy
• type Lexer
  • func NewLexer(sql string) *Lexer
  • func (l *Lexer) Error(s string)
  • func (l *Lexer) Lex(yylval *yySymType) int
• type Limit
• type NestColExpr
• type NotExpr
  • func (e *NotExpr) Evaluate(cols []string, row value.Row) (bool, error)
  • func (e *NotExpr) GetTargetCols() []string
• type OrExpr
  • func (e *OrExpr) Evaluate(cols []string, row value.Row) (bool, error)
  • func (e *OrExpr) GetTargetCols() []string
• type Order
• type OrderBy
• type Scanner
  • func NewScanner(sql string) *Scanner
  • func (s *Scanner) Scan() (*Token, error)
• type Select
  • func NewSelect(fields SelectFieldList, table string, where *Where, limit *Limit) *Select
• type SelectField
• type SelectFieldList
• type ShowTable
  • func NewShowTable() *ShowTable
• type StarExpr
• type Statement
  • func Parse(s string) (Statement, error)
• type Token
• type Where
  • func NewWhere(expr Expr) *Where

Constants

const AND = 57361

const (
	EOF = -1
)

const FALSE = 57359

const FLOAT = 57357

const FROM = 57348

const GE = 57365

const IDENT = 57355

const ILLEGAL = 57346

const IN = 57369

const INTEGER = 57356

const IS = 57367

const LE = 57364

const LIKE = 57368

const LIMIT = 57351

const NE = 57366

const NOT = 57363

const NULL = 57360

const OFFSET = 57352

const OR = 57362

const ORDER_BY = 57350

const SELECT = 57347

const SHOW = 57353

const TABLE = 57354

const TRUE = 57358

const WHERE = 57349

Types

type AndExpr

type AndExpr struct {
	Left, Right Expr
}

func (*AndExpr) Evaluate

func (e *AndExpr) Evaluate(cols []string, row value.Row) (bool, error)

func (*AndExpr) GetTargetCols

func (e *AndExpr) GetTargetCols() []string

type ColExpr

type ColExpr struct {
	Name string
}

type ComparisonExpr

type ComparisonExpr struct {
	Left     string
	Operator string
	Right    value.Value
}

func (*ComparisonExpr) Evaluate

func (e *ComparisonExpr) Evaluate(cols []string, row value.Row) (bool, error)

func (*ComparisonExpr) GetTargetCols

func (e *ComparisonExpr) GetTargetCols() []string

type Expr

type Expr interface {
	Evaluate(cols []string, row value.Row) (bool, error)
	GetTargetCols() []string
}

type FuncExpr

type FuncExpr struct {
	Name   string
	Fields SelectFieldList
}

type GroupBy

type GroupBy []string

type Lexer

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

func NewLexer

func NewLexer(sql string) *Lexer

func (*Lexer) Error

func (l *Lexer) Error(s string)

func (*Lexer) Lex

func (l *Lexer) Lex(yylval *yySymType) int

type Limit

type Limit struct {
	Offset, Rowcount int
}

type NestColExpr

type NestColExpr struct {
	Subs []string
}

type NotExpr

type NotExpr struct {
	Expr Expr
}

func (*NotExpr) Evaluate

func (e *NotExpr) Evaluate(cols []string, row value.Row) (bool, error)

func (*NotExpr) GetTargetCols

func (e *NotExpr) GetTargetCols() []string

type OrExpr

type OrExpr struct {
	Left, Right Expr
}

func (*OrExpr) Evaluate

func (e *OrExpr) Evaluate(cols []string, row value.Row) (bool, error)

func (*OrExpr) GetTargetCols

func (e *OrExpr) GetTargetCols() []string

type Order

type Order struct {
	Cols      []string
	Direction string
}

type OrderBy

type OrderBy []*Order

type Scanner

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

func NewScanner

func NewScanner(sql string) *Scanner

func (*Scanner) Scan

func (s *Scanner) Scan() (*Token, error)

type Select

type Select struct {
	Fields    SelectFieldList
	TableName string
	Where     *Where
	OrderBy   OrderBy
	GroupBy   GroupBy
	Limit     *Limit
}

func NewSelect

func NewSelect(fields SelectFieldList, table string, where *Where, limit *Limit) *Select

type SelectField

type SelectField interface {
}

type SelectFieldList

type SelectFieldList []SelectField

type ShowTable

type ShowTable struct {
}

func NewShowTable

func NewShowTable() *ShowTable

type StarExpr

type StarExpr struct {
}

type Statement

type Statement interface {
}

func Parse

func Parse(s string) (Statement, error)

type Token

type Token struct {
	Token   int
	Literal string
}

type Where

type Where struct {
	Expr Expr
}

func NewWhere

func NewWhere(expr Expr) *Where