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! :^)
This is similar to 28e1da344d
and 4dd4dd2f3c.
The crux is that wait verifies that the outvalue (siginfo* infop)
is writable *before* waiting, and writes to it *after* waiting.
In the meantime, a concurrent thread can make the output region
unwritable, e.g. by deallocating it.
This is similar to 28e1da344d
and 4dd4dd2f3c.
The crux is that select verifies that the filedescriptor sets
are writable *before* blocking, and writes to them *after* blocking.
In the meantime, a concurrent thread can make the output buffer
unwritable, e.g. by deallocating it.
This should give a significant boost to Travis speeds, because most of the
compile time is spent building the toolchain over and over again.
However, the toolchain (or libc or libm) changes only rarely,
so most rebuilds can skip this step.
The hashing has been put into a separate file to keep it
as decoupled as possible from BuiltIt.sh.
Move the "fast memcpy" stuff out of StdLibExtras.h and into Memory.h.
This will break a ton of things that were relying on StdLibExtras.h
to include a bunch of other headers. Fix will follow immediately after.
This makes it possible to include StdLibExtras.h from Types.h, which is
the main point of this exercise.
We can use __builtin_memset() without including <string.h>.
This is pretty neat, as it will allow us to reduce the header deps
of AK templates a bit, if applied consistently.
Note that this is an enabling change for an upcoming #include removal.
If statements execute a certain action or an alternative one depending
on whether the tested condition is true or false, this commit helps
establish basic control flow capabilities in the AST.
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. :^)
We also clean up some old references to the old G prefixed GUI classes
This also fixes a potential bug with using: C_OBJECT_ABSTRACT(GAbstractButton)
instead of C_OBJECT_ABSTRACT(AbstractButton)
