Static Semantics Definition with NaBL2ΒΆ

Programs that are syntactically well-formed are not necessarily valid programs. Programming languages typically impose additional context-sensitive requirements on programs that cannot be captured in a syntax definition. Languages use names to identify reusable units that can be invoked at multiple parts in a program. In addition, statically typed languages require that expressions are consistently typed. The NaBL2 ‘Name Binding Language’ supports the specification of name binding and type checking rules of a language. NaBL2 uses a constraint-based approach, and uses scope graphs for name resolution.


The predecessor of NaBL2, the NaBL/TS name binding and type analysis meta-language is deprecated.