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Description
Bending the Curve: How Rust Helped Us Write Better Ruby by: Yehuda Katz and Tom Dale
Ruby is a productive language that developers love. When Ruby isn't fast enough, they often fall back to writing C extensions. But C extensions are scary for a number of reasons; it's easy to leak memory, or segfault the entire process. When we started to look at writing parts of the Skylight agent using native code, Rust was still pretty new, but its promise of low-level control with high-level safety intrigued us. We'll cover the reasons we went with Rust, how we structured our code, and how you can do it too. If you're looking to expand your horizons, Rust may be the language for you.
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http://amara.org/v/G61F/
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Of
rails
and
for
a
lot
of
people
rails
enable
you,
as
the
person
who
may
not
have
necessarily
at
least
prevail,
speak
for
myself.
So
what
we
didn't
know
what
I
was
doing
when
I
started.
It
enabled
me
to
build
pretty
amateur
stuff
that
I
wasn't
able
to
go
before
we
were
member
for
a
simple
reason,
and
the
thing
I
was
really
I
think.
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B
C
C
C
C
C
B
C
That
Assistance
Program,
that
means
to
me
one
of
them,
is
you
get
to
write
the
code
in
a
DC
and
there's
a
lot
of
reasons
why
you
might
care
like
if
you're
right,
I
can
see
trigger
you
care
about
a
GC
pauses
if
you're
a
CEO
wanting
embedded
about
DC
language
instead
of
a
DC
language
right?
So
there's
a
lot
of
Newton's
defy
phonics
program
that
we
see
also
a
program
directly
against
the
metal.
I
don't
mean
like
the
way
you
know
when
people
say
not
for
any
mom
about
I
mean.
C
C
C
Have
a
prank
over
where
it
doesn't
matter.
This
happen
easily
every
Apple,
it
was
a
performance,
critical
area,
and
it
just
doesn't
have
to
be
anywhere
that
it
doesn't
matter,
and
the
amount
of
time
it
may
seem
to
get
to
a
recipient
performance
is
actually
more
write
in
a
language
like
it
would
be
the
training
languages
optimize
for
a
good
performance.
So
that
sort.
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C
B
C
Meat
you're
writing
code
and
only
talks
to
you
this.
It
doesn't
mean
you're,
writing
handcrafted,
big
files.
It
doesn't
mean
you
have
to
care
much
about
what
the
linkers
doing
and
it
doesn
t
make
their
entire
application
different
and
assistance
programming
language
that
would
be
made
later
right
and
using
a
little
bit
of
systems
of
language
for
error
matters,
but
mostly
Ramseur
into
something
like
relief,
I'm.
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B
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B
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B
C
C
B
The
screen
and
I
even
function
means-
and
that
will
come
to
me
as
an
owner,
doesn't
exist
anymore
and
because
the
function
may
have
the
right
to
destroy
basically
Russell
library
to
go
in
it
off.
So
you
didn't
have
to
do
any
work.
You
should
know
the
light
of
men
and
what
happened
was
that?
Because
the
function
name
on
the
book
and
the
function
may
not
exist.
C
C
C
C
Disposing
it,
the
function
gets
destroyed,
that's
bad!
Now
you
might
be
thinking.
Ok,
so
that's
cool,
but
I
don't
know,
I
would
intervene,
I
mean
if
there's
nothing
totally
stopping
these
rubies
and
upon
proof
of
going
and
using
the
book
again
right.
So
if
you
follow
this
methodology
over
here,
what's
going
back
to
that,
they
are
my
eyes
with
a
book
that
was
destroyed.
We
said
importantly
kind
of
garbage
about
there
to
do
that
kind
of
problem.
So
how
does
across
field.
B
C
C
B
C
C
Think
this
is
fine
for
simple
examples,
but
you
can
sort
of
look
into
it
that
this
is
not
the
whole
story.
This
is
not.
You
can't
really
write.
Interesting
programs
in
there
is
no
file.
You
want
to
do
something
with
the
value
you
have
to
give
mortgages
the
function
that
wants
to
do
some.
That's
not
that's,
not
very
intuitive,
and
to
do
with
that
in
the
real
world
real
world
of
transferring
ownership.
We.
C
C
C
B
C
C
C
The
print
public
function,
the
purple
function,
press
the
thing
to
the
terminal
and
it
turns
it
gives
the
book
back
to
the
main
function
and
how?
Because
of
the
faculty,
be
able
to
book
back
to
the
main
function.
When
I
go
to
print
the
line,
I
mean
from
to
silicones
addiction
Athleta,
then
everything
goes
along
as
expected,
so
that
was.
C
B
C
B
B
C
B
C
Panic
and
destroyed,
so
the
really
cool
thing
about
all
this
is
that
all
of
these,
in
all
these
cases,
I
think
the
way
that
things
we're
doing
is
pretty
normal
right.
It's
basically,
if
you
think
about
it
in
most
programming
on
the
clock
function,
you're,
basically,
blending
you're
not
expecting
they
may
define
they
are
different
driver
like
do
something
with
the
later
but
yeah.
We
have
to
impede
enormous
cosmic
overhead
in
aalborg.
C
C
They
can't
be
dated,
so
it's
pulling
my
you
can
have
50
people
looking
at
something
at
the
same
time
and
that's
fine,
but
what
does
I
want
to
allow
mutations
mutations
have
a
little
bit
of
a
little
bit
of
a
wrinkle
to
it.
So
let's
say
I
go
to
the
library
the
library
says
here
you
can
have
this
book
and
you
can
feel
free
to
change
it.
Let's
say
Google
Talk
around
or
full
the
coroners
or
something
like
that.
C
C
C
Of
object,
you're
not
allowed
to
be
hated.
The
compiler
will
prevent
me
from
changing
it.
Now.
Let's
say
I
want
to
add
a
new
feature:
images
that
I
have
the
ability
to
add
a
bookmark
to
the
book
to
say
where
I'm
off
to
so
now.
There
are
for
me
to
be
allowed
to
take
that
bookmark
I
need
to
stop
I,
think
giving
you
a
beautiful,
don't
give
you
a
problem,
a
read-only
looking
at
you
and
that's
fine,
and
now,
when
I
call
the
remote
function
before
I
was
probably
never.
C
B
B
A
C
C
C
B
C
B
C
C
B
C
C
Into
the
book
center,
so
here
what
we
did
as
I
said
copy
the
title
from
the
one
in
to
be
able
go
to
so
I
said
before
that
still
totally
fine,
because
in
this
situation
we
have
a
book
one
people
book
to
we're,
not
let's
go
eat
Mesa,
going
on
we're
following
the
rules
for
her
borrowing
to
be
able
bars
must
be
unique.
That's
twenty
bunny!
Now
what
happens.
B
B
B
C
You
think
about
that.
Actually,
the
exact
same
idea,
the
original
rules
of
borrowing
we
must
have
a
for,
which
is
that
you
can
add
the
only
bars
as
you
want
that
shared
state
or
you
can
have
a
single
beautiful
borrow.
That's
beautiful
state.
You
can
hold
them
at
the
same
time,
see
but
have
illness
statement
mutated.
You
can
roll
at
the
same
time
and
if
you
use
for
approximately.
C
A
C
C
C
C
C
C
Of
similar
to
Ruby
makes
sense
over
me
to
group
your
requirements,
which
are
like
slowly
make
sense,
so
you
can
write
these.
Like
a
supporter,
you
can
implement
my
method
on
the
one
function
on
one
value
you
can
implement.
You
can
say
like
one
that
these
that
I
go
or
you
can
implement
trace
they're
like
gold
interfaces
right,
so
there's
sort
of
this
very
flexible
way
of
dealing
with
a
synthetic
situation.
C
C
B
C
C
So
you
can
see
it
initializes,
it
calls
the
amplified
later
basic
alignment
across.
So
all
these
things
that
are
having
their
appointment
to
Brussels
and
then
I
wrote
a
little
REM
here,
which
is
analytic
Center
and
when
you
put
a
slash
report,
report
gets
a
ring
back
and
otherwise
we're
just
incrementing
through
all
right.
If.