eval

Documentation

Index

• Variables
• func ConvParamToType(rType reflect.Type, input string) (val reflect.Value, err error)
• func ParseBaseKindToType(rType reflect.Type, input string) (val reflect.Value, err error)
• func ParseCallExprArgs(call *ast.CallExpr) ([]string, error)
• func ParseInputArgs(fnType reflect.Type, args []string) (result []reflect.Value, err error)
• type Context
  • func NewContext(this any) *Context
  • func (c *Context) Delete(expr string) error
  • func (c *Context) Eval(expr string) (any, error)
  • func (c *Context) PrintNodes(w io.Writer)
  • func (c *Context) Set(expr string, v any) error
• type Node

Variables

var (
	ErrNilExprNode     = errors.New("nil expr node")
	ErrValNotValid     = errors.New("value not valid")
	ErrInvalidCallNode = errors.New("invalid call node")
)

Functions

func ConvParamToType

func ConvParamToType(rType reflect.Type, input string) (val reflect.Value, err error)

ConvParamToType 转换函数所有参数类型

func ParseBaseKindToType

func ParseBaseKindToType(rType reflect.Type, input string) (val reflect.Value, err error)

ParseBaseKindToType 转换函数所有参数类型

func ParseCallExprArgs

func ParseCallExprArgs(call *ast.CallExpr) ([]string, error)

ParseCallExprArgs 解析call表达式的参数列表

func ParseInputArgs

func ParseInputArgs(fnType reflect.Type, args []string) (result []reflect.Value, err error)

ParseInputArgs 解析传参

Types

type Context

type Context struct {
	This     any
	Expr     string
	ReadOnly bool
	Nodes    []*Node
}

func NewContext

func NewContext(this any) *Context

func (*Context) Delete

func (c *Context) Delete(expr string) error

Delete 删除 a[X]

func (*Context) Eval

func (c *Context) Eval(expr string) (any, error)

Eval 在`this`上，返回其`expr`对应的值

func (*Context) PrintNodes

func (c *Context) PrintNodes(w io.Writer)

func (*Context) Set

func (c *Context) Set(expr string, v any) error

Set 在`this`上，设置v到对应`expr`

type Node

type Node struct {
	Key string
	Val reflect.Value
}