A thorough and accessible introduction to a range of key ideas in type systems for
programming language. The study of type systems for programming languages now touches …

The Rust language offers a promising approach to safe systems programming based on the
principle of aliasing XOR mutability: a value may be either aliased or mutable, but not both at …

The aim of this chapter is to explain, by example, some methods for reasoning about
equivalence of programs based directly upon a type system and an operational semantics …

Ownership types enforce encapsulation in object-oriented programs by ensuring that objects
cannot be leaked beyond object (s) that own them. Existing ownership programming …

Abadi et al. introduced the dependency core calculus (DCC) as a unifying framework to
study many important program analyses such as binding time, information flow, slicing, and …

Abstract Types express properties of programs; typechecking is specification checking.
However, the specifications expressed by types in conventional type systems are imprecise …

Software development is a complex and error prone task. Programming languages with
strong static type systems assist programmers by capturing and checking the fundamental …

Bidirectional typechecking, in which terms either synthesize a type or are checked against a
known type, has become popular for its applicability to a variety of type systems, its error …

Tony Hoare has always been a leader in writing down and proving properties of programs.
To prove properties of programs automatically, the most widely used technology today is the …

We present Haskell libraries that statically ensure the safe use of resources such as file
handles. We statically prevent accessing an already closed handle or forgetting to close it …