Blocks

Fields and blocks are the structural backbone of a document. Everything else — types, functions, schema — describes and constrains them.

Fields

A field binds a name to a value with =. The value is any expression.

name    = "alpha"
count   = 3u32
enabled = true
ratio   = count / 2u32

Blocks

A block is a named group of fields that also lets you nest other blocks under it. The available fields and labels are set by the schema. A block kind may also be namespace-qualified (wdoc::process { ... }).

// One label -> name = "web".
service "web" {
  port   = 8080u32
  region = "us-east-1"
}

Multiple labels work the same way — declare an @inline for each position you want to expose:

// Two labels -> verb = "GET", path = "/users".
route "GET" "/users" {
  handler = "list_users"
}

Nested blocks

Blocks can hold further blocks. Nesting depth is unbounded; structure is constrained by the schema (@child for one, @children for many).

service "web" {
  metadata {
    region = "us-east-1"
    tags {
      environment = "prod"
    }
  }
}