module SDL

Defines a new schema. The block will be evaluated in the context of a {Schema} @return [Schema]

@example

SDL.define do
  model :user do
    attribute :name, :string
  end
end

# File lib/sdl.rb, line 28
def self.define(&block)
  Schema.new(&block)
end

Loads a schema from a file. The contents of the file will be evaluated in the context of a {Schema} @return [Schema]

@example

SDL.load_file("schema.rb")

# File lib/sdl.rb, line 38
def self.load_file(file)
  schema = Schema.new
  schema.instance_eval(File.read(file), file)
  schema
end

Constructs a model from command-line arguments @raise [ParseError] @return [Model] @see Parser

@example

SDL.parse("user", ["name", "email:required:unique"])

# File lib/sdl.rb, line 51
def self.parse(name, fields)
  parser = Parser.new
  fields = fields.map { |field| parser.parse(field) }
  Model.new(name, fields: fields)
end