node

package
v0.0.1 Latest Latest
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 Go to latest Published: Jan 24, 2026 License: MIT Imports: 17 Imported by: 0

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Index

Constants

View Source 
const (
	CmpUnknown = util.CompareUnknown
	CmpLess    = util.CompareLess
	CmpEqual   = util.CompareEqual
	CmpGreater = util.CompareGreater
)
View Source 
const (
	KeyPath    = "path"     // file or directory path.
	KeySize    = "size"     // file size in bytes.
	KeyIsDir   = "is_dir"   // if true, it's a directory.
	KeyModTime = "mod_time" // last modified time.
	KeyMode    = "mode"     // file or directory mode.
)

Variables

View Source 
var (
	ErrUnknownData = errors.New("UnknownData")
	ErrUnavailable = errors.New("Unavailable")
)
View Source 
var ErrInvalidNode = errors.New("InvalidNode")

Functions

func BuiltinKeys 

func BuiltinKeys() []string

func IsBuiltinKey 

func IsBuiltinKey(key string) bool

Types

type Bool 

type Bool bool

func (Bool) Any 

func (v Bool) Any() any

func (Bool) AsOp 

func (v Bool) AsOp() *Op

func (Bool) Display 

func (v Bool) Display() string

func (Bool) IsData 

func (Bool) IsData()

func (*Bool) MarshalJSON 

func (v *Bool) MarshalJSON() ([]byte, error)

func (Bool) Raw 

func (v Bool) Raw() bool

func (*Bool) UnmarshalJSON 

func (v *Bool) UnmarshalJSON(b []byte) error

type CompareResult 

type CompareResult = util.CompareResult

type Data 

type Data interface {
	IsData()
	Display() string
	AsOp() *Op
	Any() any
}

Data is the smallest unit of data in ndql.

type DefaultData 

type DefaultData struct{}

DefaultData is the factory of the default value of Data.

func Default 

func Default() *DefaultData

func (DefaultData) Bool 

func (DefaultData) Bool() Bool

func (DefaultData) Duration 

func (DefaultData) Duration() Duration

func (DefaultData) Float 

func (DefaultData) Float() Float

func (DefaultData) Int 

func (DefaultData) Int() Int

func (DefaultData) Null 

func (DefaultData) Null() Null

func (DefaultData) String 

func (DefaultData) String() String

func (DefaultData) Time 

func (DefaultData) Time() Time

type Duration 

type Duration time.Duration

func (Duration) Any 

func (v Duration) Any() any

func (Duration) AsOp 

func (v Duration) AsOp() *Op

func (Duration) Display 

func (v Duration) Display() string

func (Duration) IsData 

func (Duration) IsData()

func (*Duration) MarshalJSON 

func (v *Duration) MarshalJSON() ([]byte, error)

func (Duration) Raw 

func (v Duration) Raw() time.Duration

func (*Duration) UnmarshalJSON 

func (v *Duration) UnmarshalJSON(b []byte) error

type Float 

type Float float64

func (Float) Any 

func (v Float) Any() any

func (Float) AsOp 

func (v Float) AsOp() *Op

func (Float) Display 

func (v Float) Display() string

func (Float) IsData 

func (Float) IsData()

func (*Float) MarshalJSON 

func (v *Float) MarshalJSON() ([]byte, error)

func (Float) Raw 

func (v Float) Raw() float64

func (*Float) UnmarshalJSON 

func (v *Float) UnmarshalJSON(b []byte) error

type Int 

type Int int64

func (Int) Any 

func (v Int) Any() any

func (Int) AsOp 

func (v Int) AsOp() *Op

func (Int) Display 

func (v Int) Display() string

func (Int) IsData 

func (Int) IsData()

func (*Int) MarshalJSON 

func (v *Int) MarshalJSON() ([]byte, error)

func (Int) Raw 

func (v Int) Raw() int64

func (*Int) UnmarshalJSON 

func (v *Int) UnmarshalJSON(b []byte) error

type Node 

type Node struct {
	*mapx.Map[string, Data]
}

Node is a set of Data; what we call 'row' in SQL.

func FromMap 

func FromMap(v map[string]Data) *Node

func FromWalkerEntry 

func FromWalkerEntry(v *iox.WalkerEntry) *Node

func New 

func New() *Node

func (*Node) GetIsDir 

func (n *Node) GetIsDir() Bool

func (*Node) GetModTime 

func (n *Node) GetModTime() Time

func (*Node) GetMode 

func (n *Node) GetMode() String

func (*Node) GetPath 

func (n *Node) GetPath() String

func (*Node) GetSize 

func (n *Node) GetSize() Int

func (*Node) MarshalJSON 

func (n *Node) MarshalJSON() ([]byte, error)

func (*Node) UnmarshalJSON 

func (n *Node) UnmarshalJSON(data []byte) error

func (*Node) Validate 

func (n *Node) Validate() error

Validate returns an error if the node does not have all the builtin keys.

type Null 

type Null struct{}

func NewNull 

func NewNull() Null

func (Null) Any 

func (Null) Any() any

func (Null) AsOp 

func (v Null) AsOp() *Op

func (Null) Display 

func (Null) Display() string

func (Null) IsData 

func (Null) IsData()

func (*Null) MarshalJSON 

func (*Null) MarshalJSON() ([]byte, error)

func (Null) Raw 

func (v Null) Raw() Null

func (*Null) UnmarshalJSON 

func (*Null) UnmarshalJSON(b []byte) error

type Op 

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

Op defines some operations on Data.

func E 

func E() *Op

func Now 

func Now() *Op

func Pi 

func Pi() *Op

func Rand 

func Rand() *Op

func (*Op) Abs 

func (v *Op) Abs() (*Op, error)

func (*Op) AbsPath 

func (v *Op) AbsPath() (*Op, error)

func (*Op) Acos 

func (v *Op) Acos() (*Op, error)

func (*Op) Add 

func (v *Op) Add(other *Op) (*Op, error)

func (*Op) AsBool 

func (v *Op) AsBool() (Bool, error)

func (*Op) AsData 

func (v *Op) AsData() Data

func (*Op) AsDuration 

func (v *Op) AsDuration() (Duration, error)

func (*Op) AsFloat 

func (v *Op) AsFloat() (Float, error)

func (*Op) AsInt 

func (v *Op) AsInt() (Int, error)

func (*Op) AsNull 

func (v *Op) AsNull() (Null, error)

func (*Op) AsString 

func (v *Op) AsString() (String, error)

func (*Op) AsTime 

func (v *Op) AsTime() (Time, error)

func (*Op) Asin 

func (v *Op) Asin() (*Op, error)

func (*Op) Atan 

func (v *Op) Atan() (*Op, error)

func (*Op) Atan2 

func (v *Op) Atan2(other *Op) (*Op, error)

func (*Op) Basename 

func (v *Op) Basename() (*Op, error)

func (*Op) Between 

func (v *Op) Between(left, right *Op) (bool, error)

func (*Op) BitAnd 

func (v *Op) BitAnd(other *Op) (*Op, error)

func (*Op) BitNot 

func (v *Op) BitNot() (*Op, error)

func (*Op) BitOr 

func (v *Op) BitOr(other *Op) (*Op, error)

func (*Op) BitXor 

func (v *Op) BitXor(other *Op) (*Op, error)

func (*Op) Bool 

func (v *Op) Bool() (Bool, bool)

func (*Op) Ceil 

func (v *Op) Ceil() (*Op, error)

func (*Op) Coalesce 

func (v *Op) Coalesce(other ...*Op) *Op

func (*Op) Compare 

func (v *Op) Compare(other *Op) CompareResult

func (*Op) ConcatWs 

func (v *Op) ConcatWs(other ...*Op) (*Op, error)

func (*Op) Cos 

func (v *Op) Cos() (*Op, error)

func (*Op) Cot 

func (v *Op) Cot() (*Op, error)

func (*Op) Day 

func (v *Op) Day() (*Op, error)

func (*Op) DayOfWeek 

func (v *Op) DayOfWeek() (*Op, error)

func (*Op) DayOfYear 

func (v *Op) DayOfYear() (*Op, error)

func (*Op) Degrees 

func (v *Op) Degrees() (*Op, error)

func (*Op) Dir 

func (v *Op) Dir() (*Op, error)

func (*Op) Divide 

func (v *Op) Divide(other *Op) (*Op, error)

func (*Op) Duration 

func (v *Op) Duration() (Duration, bool)

func (*Op) Env 

func (v *Op) Env() (*Op, error)

func (*Op) EnvOr 

func (v *Op) EnvOr(other *Op) (*Op, error)

func (*Op) EqualType 

func (v *Op) EqualType(other *Op) bool

func (*Op) Exp 

func (v *Op) Exp() (*Op, error)

func (*Op) Extension 

func (v *Op) Extension() (*Op, error)

func (*Op) Float 

func (v *Op) Float() (Float, bool)

func (*Op) Floor 

func (v *Op) Floor() (*Op, error)

func (*Op) Format 

func (v *Op) Format(other ...*Op) (*Op, error)

func (*Op) Greatest 

func (v *Op) Greatest(other ...*Op) *Op

func (*Op) Hour 

func (v *Op) Hour() (*Op, error)

func (*Op) If 

func (v *Op) If(left, right *Op) *Op

func (*Op) IfNull 

func (v *Op) IfNull(other *Op) *Op

func (*Op) In 

func (v *Op) In(other ...*Op) bool

func (*Op) Instr 

func (v *Op) Instr(other *Op) (*Op, error)

func (*Op) Int 

func (v *Op) Int() (Int, bool)

func (*Op) Inverse 

func (v *Op) Inverse() (*Op, error)

func (*Op) IsFalse 

func (v *Op) IsFalse() bool

func (*Op) IsNull 

func (v *Op) IsNull() bool

func (*Op) IsTrue 

func (v *Op) IsTrue() bool

func (*Op) Least 

func (v *Op) Least(other ...*Op) *Op

func (*Op) LeftShift 

func (v *Op) LeftShift(other *Op) (*Op, error)

func (*Op) Len 

func (v *Op) Len() (*Op, error)

func (*Op) Like 

func (v *Op) Like(other *Op) (*Op, error)

func (*Op) Ln 

func (v *Op) Ln() (*Op, error)

func (*Op) Log10 

func (v *Op) Log10() (*Op, error)

func (*Op) Log2 

func (v *Op) Log2() (*Op, error)

func (*Op) LogicalAnd 

func (v *Op) LogicalAnd(other *Op) (*Op, error)

func (*Op) LogicalNot 

func (v *Op) LogicalNot() (*Op, error)

func (*Op) LogicalOr 

func (v *Op) LogicalOr(other *Op) (*Op, error)

func (*Op) LogicalXor 

func (v *Op) LogicalXor(other *Op) (*Op, error)

func (*Op) Lower 

func (v *Op) Lower() (*Op, error)

func (*Op) MarshalJSON 

func (v *Op) MarshalJSON() ([]byte, error)

func (*Op) Minute 

func (v *Op) Minute() (*Op, error)

func (*Op) Mod 

func (v *Op) Mod(other *Op) (*Op, error)

func (*Op) Month 

func (v *Op) Month() (*Op, error)

func (*Op) Multiply 

func (v *Op) Multiply(other *Op) (*Op, error)

func (*Op) NewTime 

func (v *Op) NewTime(param ...*Op) (*Op, error)

func (*Op) Not 

func (v *Op) Not() (*Op, error)

func (*Op) Null 

func (v *Op) Null() (Null, bool)

func (*Op) NullIf 

func (v *Op) NullIf(other *Op) *Op

func (*Op) Pow 

func (v *Op) Pow(other *Op) (*Op, error)

func (*Op) Radians 

func (v *Op) Radians() (*Op, error)

func (*Op) Regexp 

func (v *Op) Regexp(other *Op) (*Op, error)

func (*Op) RegexpInstr 

func (v *Op) RegexpInstr(other *Op) (*Op, error)

func (*Op) RegexpReplace 

func (v *Op) RegexpReplace(pat, repl *Op) (*Op, error)

func (*Op) RegexpSubstr 

func (v *Op) RegexpSubstr(other *Op) (*Op, error)

func (*Op) RelPath 

func (v *Op) RelPath(basepath *Op) (*Op, error)

func (*Op) Replace 

func (v *Op) Replace(from, to *Op) (*Op, error)

func (*Op) RightShift 

func (v *Op) RightShift(other *Op) (*Op, error)

func (*Op) Round 

func (v *Op) Round() (*Op, error)

func (*Op) Second 

func (v *Op) Second() (*Op, error)

func (*Op) Sha2 

func (v *Op) Sha2() (*Op, error)

func (*Op) Sin 

func (v *Op) Sin() (*Op, error)

func (*Op) Size 

func (v *Op) Size() (*Op, error)

func (*Op) Sleep 

func (v *Op) Sleep() (*Op, error)

func (*Op) Sqrt 

func (v *Op) Sqrt() (*Op, error)

func (*Op) String 

func (v *Op) String() (String, bool)

func (*Op) Substr 

func (v *Op) Substr(other ...*Op) (*Op, error)

func (*Op) SubstrIndex 

func (v *Op) SubstrIndex(delim, count *Op) (*Op, error)

func (*Op) Subtract 

func (v *Op) Subtract(other *Op) (*Op, error)

func (*Op) Tan 

func (v *Op) Tan() (*Op, error)

func (*Op) Time 

func (v *Op) Time() (Time, bool)

func (*Op) TimeFormat 

func (v *Op) TimeFormat(other *Op) (*Op, error)

func (*Op) Trim 

func (v *Op) Trim(other ...*Op) (*Op, error)

func (*Op) UnmarshalJSON 

func (v *Op) UnmarshalJSON(data []byte) error

func (*Op) Upper 

func (v *Op) Upper() (*Op, error)

func (*Op) Year 

func (v *Op) Year() (*Op, error)

type String 

type String string

func (String) Any 

func (v String) Any() any

func (String) AsOp 

func (v String) AsOp() *Op

func (String) Display 

func (v String) Display() string

func (String) IsData 

func (String) IsData()

func (*String) MarshalJSON 

func (v *String) MarshalJSON() ([]byte, error)

func (String) Raw 

func (v String) Raw() string

func (*String) UnmarshalJSON 

func (v *String) UnmarshalJSON(b []byte) error

type Time 

type Time time.Time

func (Time) Any 

func (v Time) Any() any

func (Time) AsOp 

func (v Time) AsOp() *Op

func (Time) Display 

func (v Time) Display() string

func (Time) IsData 

func (Time) IsData()

func (*Time) MarshalJSON 

func (v *Time) MarshalJSON() ([]byte, error)

func (Time) Raw 

func (v Time) Raw() time.Time

func (*Time) UnmarshalJSON 

func (v *Time) UnmarshalJSON(b []byte) error

Source Files

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