ql

Documentation

Index

• func Converter(oo ...op) *converter
• func DefaultRefHandler(n *ql.ASTNode, args ...exp.Expression) (exp.Expression, error)
• func DefaultSymbolHandler(n *ql.ASTNode) (exp.Expression, error)
• func DefaultValueHandler(n *ql.ASTNode) (exp.Expression, error)
• func RefHandler(h refHandler) op
• func SymHandler(h symHandler) op
• func ValHandler(h valHandler) op
• type ASTNode
• type ExprHandler
• type ExprHandlerMap
  • func (ee ExprHandlerMap) ExprHandlers() (out ExprHandlerMap)
  • func (ee ExprHandlerMap) RefHandler(n *ql.ASTNode, args ...exp.Expression) (exp.Expression, error)

Functions

func Converter

func Converter(oo ...op) *converter

Converter initializes new converter

func DefaultRefHandler

func DefaultRefHandler(n *ql.ASTNode, args ...exp.Expression) (exp.Expression, error)

DefaultRefHandler converts ref from the AST node using ref2exp

func DefaultSymbolHandler

func DefaultSymbolHandler(n *ql.ASTNode) (exp.Expression, error)

DefaultSymbolHandler parses symbol from the AST node into an identifier

func DefaultValueHandler

func DefaultValueHandler(n *ql.ASTNode) (exp.Expression, error)

DefaultValueHandler converts node into placeholder and a new attribute

func RefHandler

func RefHandler(h refHandler) op

RefHandler sets custom ref handler

func SymHandler

func SymHandler(h symHandler) op

SymHandler sets custom symbol handler

func ValHandler

func ValHandler(h valHandler) op

ValHandler sets custom value handler

Types

type ASTNode

type ASTNode = ql.ASTNode

type ExprHandler

type ExprHandler struct {
	Handler      func(...exp.Expression) exp.Expression
	HandlerE     func(...exp.Expression) (exp.Expression, error)
	RangeHandler func(exp.Expression, exp.RangeVal) exp.Expression
}

type ExprHandlerMap

type ExprHandlerMap map[string]*ExprHandler

func (ExprHandlerMap) ExprHandlers

func (ee ExprHandlerMap) ExprHandlers() (out ExprHandlerMap)

func (ExprHandlerMap) RefHandler

func (ee ExprHandlerMap) RefHandler(n *ql.ASTNode, args ...exp.Expression) (exp.Expression, error)