Module cddl_cat::ast

This module defines the Abstract Syntax Tree.

It contains a tree representation of CDDL rules, closely matching the syntax used in the original CDDL text.

Structs

• Cddl
  A CDDL specification, containing multiple rule syntax trees.
• CddlSlice
  A CDDL specification, containing multiple rule syntax trees.
• Group
  A group contains a number of elements.
• GrpChoice
  A group choice contains one of the choices making up a group.
• GrpEnt
  A group entry contains one element of a group.
• Member
  A group member, typically one element of an array or map.
• MemberKey
  The “key” part of a key-value group member, along with its “cut” semantics.
• NameGeneric
  A name identifier with generic arguments.
• Rule
  A CDDL data structure specification
• Type
  A CDDL type, with choices.
• TypeControl
  A CDDL type, specified with a control operator.
• TypeRange
  A CDDL type, specified with a range operator.

Enums

• GrpEntVal
  The part of a “group entry” after the occurrence.
• MemberKeyVal
  The “key” part of a key-value group member.
• Occur
  An “occurrence” which specifies how many elements can match a group member.
• RuleVal
  A rule’s syntax tree, in either Type or GrpEnt form.
• Type1
  A CDDL type, with an additional range or control operator.
• Type2
  Type2 is the main representation of a CDDL type.
• Value
  A literal value, i.e. "foo", 1.0, or h'FFF7'