ast

package
v1.7.6 Latest Latest
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 Go to latest Published: May 22, 2024 License: AGPL-3.0 Imports: 13 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	FuncLower = NewGroupingFunc("lower", "lowerUTF8(?)")
	FuncUpper = NewGroupingFunc("upper", "upperUTF8(?)")
)

Functions

func IsIdent 

func IsIdent(s string) bool

func Parse 

func Parse(s string) (any, error)

func SplitAliasName 

func SplitAliasName(s string) (string, string)

func String 

func String(expr Expr) string

Types

type BinaryExpr 

type BinaryExpr struct {
	Op       BinaryOp
	LHS, RHS Expr
}

func (*BinaryExpr) AppendString 

func (e *BinaryExpr) AppendString(b []byte) []byte

func (*BinaryExpr) AppendTemplate 

func (e *BinaryExpr) AppendTemplate(b []byte) []byte

type BinaryOp 

type BinaryOp string

type BoolOp 

type BoolOp string
const (
	BoolAnd BoolOp = "AND"
	BoolOr  BoolOp = "OR"
)

type Expr 

type Expr interface {
	AppendString(b []byte) []byte
	AppendTemplate(b []byte) []byte
}

type Filter 

type Filter struct {
	BoolOp BoolOp
	LHS    string
	Op     FilterOp
	RHS    Value
}

func (*Filter) AppendString 

func (f *Filter) AppendString(b []byte, spaceAround bool) []byte

type FilterOp 

type FilterOp string
const (
	FilterEqual     FilterOp = "="
	FilterNotEqual  FilterOp = "!="
	FilterLT        FilterOp = "<"
	FilterLTE       FilterOp = "<="
	FilterGT        FilterOp = ">"
	FilterGTE       FilterOp = ">="
	FilterIn        FilterOp = "in"
	FilterNotIn     FilterOp = "not in"
	FilterRegexp    FilterOp = "~"
	FilterNotRegexp FilterOp = "!~"
	FilterLike      FilterOp = "like"
	FilterNotLike   FilterOp = "not like"
	FilterExists    FilterOp = "exists"
	FilterNotExists FilterOp = "not exists"
)

type Filters 

type Filters []Filter

func (Filters) AppendString 

func (filters Filters) AppendString(b []byte) []byte

type Func 

type Func struct {
	Name string
	Expr string
}

func NewGroupingFunc 

func NewGroupingFunc(name, expr string) *Func

func (*Func) AppendQuery 

func (f *Func) AppendQuery(b []byte, arg ch.Safe) (_ []byte, err error)

type FuncCall 

type FuncCall struct {
	Func     string
	Arg      Expr
	Grouping GroupingElems
}

func (*FuncCall) AppendString 

func (fn *FuncCall) AppendString(b []byte) []byte

func (*FuncCall) AppendTemplate 

func (fn *FuncCall) AppendTemplate(b []byte) []byte

type Grouping 

type Grouping struct {
	Elems GroupingElems
}

func (*Grouping) String 

func (g *Grouping) String() string

type GroupingElem 

type GroupingElem struct {
	Func     string
	Name     string
	HasAlias bool
	Alias    string
}

func (GroupingElem) AppendString 

func (g GroupingElem) AppendString(b []byte) []byte

type GroupingElems 

type GroupingElems []GroupingElem

func (GroupingElems) AppendString 

func (els GroupingElems) AppendString(b []byte) []byte

func (GroupingElems) Attrs 

func (els GroupingElems) Attrs() []string

type MetricExpr 

type MetricExpr struct {
	Name         string
	Filters      []Filter
	RollupWindow time.Duration
	Offset       time.Duration
	Grouping     GroupingElems
}

func (*MetricExpr) AppendString 

func (me *MetricExpr) AppendString(b []byte) []byte

func (*MetricExpr) AppendTemplate 

func (me *MetricExpr) AppendTemplate(b []byte) []byte

type NamedExpr 

type NamedExpr struct {
	Expr     Expr
	HasAlias bool
	Alias    string
}

func (*NamedExpr) AppendString 

func (e *NamedExpr) AppendString(b []byte) []byte

type Number 

type Number struct {
	Text string
	Kind NumberKind
}

func (Number) AppendString 

func (n Number) AppendString(b []byte) []byte

func (Number) AppendTemplate 

func (n Number) AppendTemplate(b []byte) []byte

func (Number) ConvertValue 

func (n Number) ConvertValue(unit string) (float64, error)

func (Number) Float64 

func (n Number) Float64() float64

func (Number) String 

func (n Number) String() string

type NumberKind 

type NumberKind int
const (
	NumberUnitless NumberKind = iota
	NumberDuration
	NumberBytes
)

type ParenExpr 

type ParenExpr struct {
	Expr
}

func (ParenExpr) AppendString 

func (e ParenExpr) AppendString(b []byte) []byte

func (ParenExpr) AppendTemplate 

func (e ParenExpr) AppendTemplate(b []byte) []byte

type QueryPart 

type QueryPart interface {
	fmt.Stringer
}

type Selector 

type Selector struct {
	Expr NamedExpr
}

func (*Selector) String 

func (sel *Selector) String() string

type StringValue 

type StringValue struct {
	Text string
}

func (StringValue) AppendString 

func (v StringValue) AppendString(b []byte) []byte

type StringValues 

type StringValues struct {
	Values []string
}

func (StringValues) AppendString 

func (v StringValues) AppendString(b []byte) []byte

type Token 

type Token struct {
	ID    TokenID
	Text  string
	Start int
}

func (*Token) String 

func (t *Token) String() string

type TokenID 

type TokenID int8
const (
	EOF_TOKEN TokenID = iota
	BYTE_TOKEN
	IDENT_TOKEN
	VALUE_TOKEN
	NUMBER_TOKEN
	DURATION_TOKEN
	BYTES_TOKEN
)

func (TokenID) String 

func (i TokenID) String() string

type UniqExpr 

type UniqExpr struct {
	Name  *MetricExpr
	Attrs []string
}

func (*UniqExpr) AppendString 

func (uq *UniqExpr) AppendString(b []byte) []byte

func (*UniqExpr) AppendTemplate 

func (uq *UniqExpr) AppendTemplate(b []byte) []byte

type Value 

type Value interface {
	AppendString(b []byte) []byte
}

type Where 

type Where struct {
	Filters Filters
}

func (*Where) String 

func (w *Where) String() string

Source Files

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