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submodule
capnproto
Commits
4d74e349
Commit
4d74e349
authored
May 18, 2017
by
Kenton Varda
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index.md
doc/slides-2017.05.18/index.md
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doc/slides-2017.05.18/index.md
View file @
4d74e349
...
...
@@ -336,16 +336,16 @@ Header parsing is zero-copy.
<section
markdown=
"1"
data-title=
"Designated Initializers"
>
Old and busted
:
Ugly imperative code
:
{% highlight c++ %}
capnp::MallocMessageBuilder message;
auto root = message.initRoot
<MyStruct>
();
root.set
Int32Field
(123);
root.set
TextField
("foo");
auto inner = root.init
StructField
();
inner.set
BoolField
(true);
root.set
Foo
(123);
root.set
Bar
("foo");
auto inner = root.init
Baz
();
inner.set
Qux
(true);
capnp::writeMessageToFd(fd, message);
{% endhighlight %}
...
...
@@ -356,17 +356,17 @@ capnp::writeMessageToFd(fd, message);
<section
markdown=
"1"
data-title=
"Designated Initializers"
>
N
ew hotness
:
N
ice declarative code
:
{% highlight c++ %}
using namespace capnp::init;
capnp::MallocMessageBuilder message;
message.initRoot
<MyStruct>
(
$
int32Field
= 123,
$
textField
= "foo",
$
structField
(
$
boolField
= true
$
foo
= 123,
$
bar
= "foo",
$
baz
(
$
qux
= true
)
);
capnp::writeMessageToFd(fd, message);
...
...
@@ -384,10 +384,10 @@ Even better:
using namespace capnp::init;
capnp::writeMessageToFd
<MyStruct>
(fd,
$
int32Field
= 123,
$
textField
= "foo",
$
structField
(
$
boolField
= true
$
foo
= 123,
$
bar
= "foo",
$
baz
(
$
qux
= true
)
);
{% endhighlight %}
...
...
@@ -404,7 +404,7 @@ struct {
struct Setter {
T value;
template
<typename
U
>
void operator()(U& target) {
target.set
Int32Field
(kj::fwd
<T>
(value));
target.set
Foo
(kj::fwd
<T>
(value));
}
};
...
...
@@ -412,7 +412,7 @@ struct {
Setter
<T>
operator=(T&& value) {
return { kj::fwd
<T>
(value) };
}
} $
int32Field
;
} $
foo
;
{% endhighlight %}
</section>
...
...
@@ -421,16 +421,16 @@ struct {
<section
markdown=
"1"
data-title=
"POCS"
>
Kind of painful
:
Not idiomatic
:
{% highlight c++ %}
capnp::MallocMessageBuilder message;
MyStruct::Builder root = message.initRoot
<MyStruct>
();
root.set
Int32Field
(123);
root.set
TextField
("foo");
InnerStruct::Builder inner = root.init
StructField
();
inner.set
BoolField
(true);
root.set
Foo
(123);
root.set
Bar
("foo");
InnerStruct::Builder inner = root.init
Baz
();
inner.set
Qux
(true);
capnp::writeMessageToFd(fd, message);
{% endhighlight %}
...
...
@@ -445,11 +445,11 @@ Plain Old C++ Structs?
{% highlight c++ %}
MyStruct root;
root.
int32Field
= 123;
root.
textField
= "foo";
root.
foo
= 123;
root.
bar
= "foo";
InnerStruct inner;
inner.
boolField
= true;
root.
structField
= kj::mv(inner);
inner.
qux
= true;
root.
baz
= kj::mv(inner);
capnp::writeMessageToFd(fd, message);
{% endhighlight %}
...
...
@@ -578,87 +578,3 @@ interface AddressBookService {
Questions?
</section>
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