海角论坛

Personal statement

I am a Chancellor鈥檚 Fellow and Lecturer in the department of at the . I am a member the department鈥檚 group.

My research is on the design and analysis of programming languages. I use mathematical ideas and structure from logic, category theory, type theory, and denotational semantics to study programming languages and the systems they describe. I was co-chair of the 2016 workshop on , and served on the programme committee for . I am on the programme committee for the upcoming .

I have done and am doing research in the following areas of programming languages:

The Theory of Parametricity is the analysis of programming languages in terms of how they operate under notions of 鈥渃hange鈥�. Classically, this is the study of programs' behaviour under change of data representation. I have extended the original concept to study (as one finds in languages like Scala or Haskell) and . I have also worked on in the Coq theorem prover.

I have Applied Parametricity to , representations of , invariance properties in and , and developed its application to . I am currently exploring the connections between classical parametricity and systems that study how programs . I am also interested in using parametricity to study the . I gave an at the workshop on how I see this interesting research field developing.

I have built Resource-aware Verifiers and Type Systems. I have worked on , and on type systems for tracking resource usage in type systems, in terms of and .

In effects and effect systems, I studied , which have become a popular way to track the effects in programs, going . I developed the theory of parameterised monads to , with application to effect-driven program optimisations. I have also worked on reasoning about recursive data types in the presence of effects. There is a , and papers about the , and .

From 2013 to 2014 I developed Static Analysis Tools for Java Concurrency at . We built , a tool to discover and analyse concurrency defects in Java programs. I wrote some developer-oriented articles on using ThreadSafe to discover and . With , I wrote an discussing ThreadSafe's internals and our experiences in applying academic static analysis ideas to industry. My work at Contemplate was informed by my academic research on , , and .