TypPatterns
TypPatterns is a theoretical framework for describing and applying type-based patterns in programming languages. It formalizes how programs reason about the structure of types through pattern descriptions, enabling compilers and analysis tools to perform precise type narrowing, deconstruction, and matching across complex type hierarchies. TypPatterns is not tied to a single language; rather, it provides a common vocabulary for expressing and combining patterns that interact with type information.
Core concepts include pattern types, atomic patterns such as ClassPattern, PrimitivePattern, TuplePattern, and CollectionPattern, and composite
Syntax and semantics in TypPatterns are designed to be language-agnostic, while remaining compatible with existing pattern
History and usage of TypPatterns are largely academic, arising from research in type systems and program analysis.
See also: type system, pattern matching, static analysis, type inference, generic programming.