common

package

v0.43.0 Latest Latest Go to latest Published: Jan 26, 2022 License: Apache-2.0 Imports: 2 Imported by: 0

Documentation ¶

Index ¶

type Condition
type Field
type Invocation
type Path
type Query
- func Parse(rawQueries []string) ([]Query, error)
type Value

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Condition ¶

type Condition struct {
	Left  Value  `@@`
	Op    string `@("==" | "!=")`
	Right Value  `@@`
}

Condition represents an optional boolean condition on the RHS of a query. nolint:govet

type Field ¶

type Field struct {
	Name   string  `@Ident`
	MapKey *string `( "[" @String "]" )?`
}

Field is an item within a Path. nolint:govet

type Invocation ¶

type Invocation struct {
	Function  string  `@Ident`
	Arguments []Value `"(" ( @@ ( "," @@ )* )? ")"`
}

Invocation represents a function call. nolint:govet

type Path ¶

type Path struct {
	Fields []Field `@@ ( "." @@ )*`
}

Path represents a telemetry path expression. nolint:govet

type Query ¶

type Query struct {
	Invocation Invocation `@@`
	Condition  *Condition `( "where" @@ )?`
}

Query represents a parsed query. It is the entry point into the query DSL. nolint:govet

func Parse ¶

func Parse(rawQueries []string) ([]Query, error)

type Value ¶

type Value struct {
	Invocation *Invocation `( @@`
	String     *string     `| @String`
	Float      *float64    `| @Float`
	Int        *int64      `| @Int`
	Path       *Path       `| @@ )`
}

Value represents a part of a parsed query which is resolved to a value of some sort. This can be a telemetry path expression, function call, or literal. nolint:govet

Source Files ¶

View all Source files

parser.go

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