Error handling

Good error reporting should be integral to the compiler.

We need to think about what errors could be encountered and what information is needed to generate a useful message.

MiniZinc <-> MicroZinc

  • Could keep a stack of the transformations, so we always know the origin of any new constraints
  • Transformations generate explanations of why they were done, so the logic can be followed for debugging


  • Could generate bytecode with debugging symbols giving locations for instructions
  • Interpreter could have a debugging runtime mode enabling full tracing