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Programming languages, in particular, focussing on their semantics.

8 votes
1 answer
109 views

Question on subtyping of handlers in "An Effect System for Algebraic Effects and Handlers"

I had a question on subtyping in the paper "An Effect System for Algebraic Effects and Handlers". I was wondering why there isn't a subtyping rule for adding effects on both sides of a handler type, s …
3 votes
1 answer
136 views

Escaping references in Eff and resources

In the paper "Programming with Algebraic Effects and Handlers" there is the issue where references (dynamic instances of a state effect, defined using algebraic effects) can propagate outside the scop …
1 vote
1 answer
289 views

Algebraic effects and handlers, dynamic effects

What exactly are dynamic effects? What does it mean to dynamically create an effect? In a language with algebraic effects and handlers (such as Eff or Koka) one could already do different operations …
4 votes
1 answer
139 views

Questions about algebraic effects and handlers, decomposed handlers

Can a handler always be decomposed? Say a handler for Get and Set effects could be decomposed to a handler for Get and a handler for Set. After they could be composed again by first applying the handl …