Toolable?

Naomi Hamilton continues her randomly alphabetical interviews of language architects with a visit with Anders Hejlsberg, leader of C# development for Microsoft:

[I also learnt to] design the language to be well-toolable. This does impact the language in subtle ways – you’ve got to make sure the syntax works well for having a background compiler, and statement completion. There are actually some languages, such as SQL, where it’s very hard to do meaningful statement completion as things sort of come in the wrong order.