What language was Xcode written in? [closed]

Question

Any clue which language Xcode IDE is written in?

Answer 1

C, C++, Objective-C and Objective-C++ (ordered alphabetically). Omitting external tools Xcode serves as a front end for and libraries which are not unique to the Xcode toolkit, I don't know of other languages they use in the app itself. This is also the norm for other related apps (e.g. Instruments).

The current version uses Garbage Collection for Objective-C and Objective-C++.

External components such as Clang and Xcode's indexer are written predominantly in C++.

Answer 2

I second the guess, most likely Objective-C since all the Cocoa frameworks link natively. GNUstep's Gorm (Interface Builder lookalike) is certainly written in Objective-C http://en.wikipedia.org/wiki/Gorm_(computing). Curiously, though, it appears that NeXTStep's Interface Builder was originally written in Lisp if Wikipedia is to be believed http://en.wikipedia.org/wiki/Interface_Builder.