FKL Parser

解析器生成器：https://pest.rs/

Pest 在线编辑器：https://pest.rs/#editor

语法

declarations = _{ SOI ~ declaration* ~ EOI }

declaration = {
  include_decl
  | context_map_decl
  | context_decl
  | ext_module_decl
  | aggregate_decl
  | entity_decl
  | value_object_decl
  | struct_decl
  // ddd
  | component_decl
  | implementation_decl
  | layered_decl
  // extension
  | source_sets_decl
}