3 commits

Author	SHA1	Message	Date
Andreas Kling	05c80cac20	LibJS: Make the GC marking phase cycle-proof ... Don't visit cells that are already marked. This prevents the marking phase from looping forever when two cells refer to each other. Also do the marking directly from the CellVisitor, removing another unnecessary phase of the collector. :^)	2020-03-09 22:18:03 +01:00
Andreas Kling	63e4b744ed	LibJS: Add a basic mark&sweep garbage collector :^) ... Objects can now be allocated via the interpreter's heap. Objects that are allocated in this way will need to be provably reachable from at least one of the known object graph roots. The roots are currently determined by Heap::collect_roots(). Anything that wants be collectable garbage should inherit from Cell, the fundamental atom of the GC heap. This is pretty neat! :^)	2020-03-08 19:23:58 +01:00
Andreas Kling	f5476be702	LibJS: Start building a JavaScript engine for SerenityOS :^) ... I always tell people to start building things by working on the thing that seems the most interesting right now. The most interesting thing here was an AST + simple interpreter, so that's where we start! There is no lexer or parser yet, we build an AST directly and then execute it in the interpreter, producing a return value. This seems like the start of something interesting. :^)	2020-03-07 19:42:11 +01:00