Elm.Syntax.Declaration

Declarations Syntax

Syntax for the different top-level declarations in Elm. These can be one of the following (all declared in Declaration):

Functions: add x y = x + y
Custom types: type Color = Blue | Red
Type aliases: type alias Status = Int
Port declaration: port sendMessage: String -> Cmd msg
Destructuring: {name, age} = person
Infix declarations. You will probably not need this, while only core packages can define these.

= FunctionDeclaration Function

| AliasDeclaration TypeAlias

| CustomTypeDeclaration Type

| PortDeclaration Signature

| InfixDeclaration Infix

| Destructuring (Node Pattern) (Node Expression)

Custom type that represents all different top-level declarations.

Encode a Declaration syntax element to JSON.

JSON decoder for a Declaration syntax element.