Module gclient::ext::sp_runtime::scale_info::form

Provides form definitions.

The forms provided here are used to generically communicate the mode a type identifier, type definition or structure is using.

The default form is the MetaForm. It uses MetaType for communicating type identifiers and thus acts as a bridge from runtime to compile time type information.

The PortableForm is a space-efficient representation that no longer has any connections to the interning registry and thus can no longer be used to retrieve information from the original registry. Its sole purpose is for space-efficient serialization.

Other forms, such as a portable form that is still bound to the registry (also via lifetime tracking) are possible but current not needed.

Enums

• MetaForm
  A meta meta-type.
• PortableForm
  Portable form that has its lifetime untracked in association to its interner.

Traits

• Form
  Trait to control the internal structures of type definitions.
• JsonSchemaMaybe
  Trait to support derivation of JsonSchema for schema generation.