Norm 0.9

Norm 0.9 completes the vertical implementation of class construction and single inheritance.

Language

• A class supports one explicit constructor with path-sensitive definite field initialization.
• A subclass calls its parent constructor explicitly and inherits public fields and methods.
• Public methods override by signature and dispatch dynamically through class, generic parent, and interface views.
• Private methods are not inherited and do not override.

Toolchain

• SemanticModel stores parent-type projections and override relationships.
• Bound, Core, and Truffle share constructor entry points, inherited field layouts, and method dispatch tables.
• Core identity advances to Schema V5 and Language Semantics V5.
• The parser, formatter, Language Server, and runtime consume the same inheritance model.

See Class declarations for the complete rules.