mucl

type Broker struct {
	Pos  lexer.Position
	Name string `  "broker" @Ident`
}

type Definition struct {
	Pos     lexer.Position
	Service *Service `@@`

	Entries []*Entry `( @@ ";"* )*`
}

type Endpoint struct {
	Pos lexer.Position

	Name  string           `"endpoint" @Ident`
	Entry []*EndpointEntry `"{" ( @@ ";"? )* "}"`
}

type EndpointEntry struct {
	Pos lexer.Position

	//	Option *Option `  "option" @@`
	Method *Method ` @@`
}

type Entry struct {
	Pos lexer.Position

	Import   string    ` "import" @String`
	Message  *Message  `| @@`
	Endpoint *Endpoint `| @@`
	Enum     *Enum     `| @@`
	Option   *Option   `| "option" @@`
}

type Enum struct {
	Pos lexer.Position

	Name   string       `"enum" @Ident`
	Values []*EnumEntry `"{" ( @@ ( ";" )* )* "}"`
}

type EnumEntry struct {
	Pos lexer.Position

	Value  *EnumValue `  @@`
	Option *Option    `| "option" @@`
}

type EnumValue struct {
	Pos lexer.Position

	Key   string `@Ident`
	Value int    `"=" @( [ "-" ] Int )`

	Options []*Option `( "[" @@ ( "," @@ )* "]" )?`
}

type Field struct {
	Pos lexer.Position

	Optional bool `(   @"optional"`
	Required bool `  | @"required"`
	Repeated bool `  | @"repeated" )?`

	Name string `@Ident`
	Type *Type  `@@`

	Options []*Option `( "[" @@ ( "," @@ )* "]" )?`
}

type MServer struct {
	Pos  lexer.Position
	Name string `  "server" @Ident`
}

type MapType struct {
	Pos lexer.Position

	Key   *Type `"map" "<" @@`
	Value *Type `"," @@ ">"`
}

type Message struct {
	Pos lexer.Position

	Name    string          `"type" @Ident`
	Entries []*MessageEntry `"{" @@* "}"`
}

type MessageEntry struct {
	Pos lexer.Position

	Enum    *Enum    `( @@`
	Option  *Option  ` | "option" @@`
	Message *Message ` | @@`
	Field   *Field   ` | @@ ) ";"*`
}

type Method struct {
	Pos lexer.Position

	Name              string `"rpc" @Ident`
	StreamingRequest  bool   `"(" @"stream"?`
	Request           *Type  `    @@ ")"`
	StreamingResponse bool   `"returns" "(" @"stream"?`
	Response          *Type  `              @@ ")"`
}

type Option struct {
	Pos lexer.Position

	Name  string  `( "(" @Ident @( "." Ident )* ")" | @Ident @( "." @Ident )* )`
	Attr  *string `( "." @Ident ( "." @Ident )* )?`
	Value *Value  `"=" @@`
}

type Protocol struct {
	Pos  lexer.Position
	Name string `  "protocol" @Ident`
}

type Registry struct {
	Pos  lexer.Position
	Name string `  "registry" @Ident`
}

type Scalar int

type Service struct {
	Pos lexer.Position

	Name    string          `"service" @Ident`
	Entries []*ServiceEntry `"{" @@* "}"`
}

type ServiceEntry struct {
	Pos lexer.Position

	Broker    *Broker    `( @@`
	Protocol  *Protocol  ` | @@`
	Registry  *Registry  ` | @@`
	Server    *MServer   ` | @@`
	Transport *Transport ` | @@ ) ";"*`
}

type Transport struct {
	Pos  lexer.Position
	Name string `  "transport" @Ident`
}

type Type struct {
	Pos lexer.Position

	Scalar    Scalar   `  @@`
	Map       *MapType `| @@`
	Reference string   `| @(Ident ( "." Ident )*)`
}

type Value struct {
	Pos lexer.Position

	String *string  `  @String`
	Number *float64 `| @Float`
	Int    *int64   `| @Int`
	Bool   *bool    `| (@"true" | "false")`
}