Struct gluon_vm::api::de::De [−][src]
pub struct De<T>(pub T);
Expand description
Getable
wrapper which extracts T
by deserializing it into a rust value.
Struct
#[macro_use]
extern crate serde_derive;
#[macro_use]
extern crate gluon_vm;
use gluon::{Thread, ThreadExt, new_vm};
use gluon::base::types::ArcType;
use gluon::vm::api::VmType;
use gluon::vm::api::de::De;
#[derive(Debug, PartialEq, Deserialize)]
struct Vec2 {
x: f64,
y: f64
}
impl VmType for Vec2 {
type Type = Self;
fn make_type(thread: &Thread) -> ArcType {
field_decl!{ x, y }
type T = record_type! {
x => f64,
y => f64
};
T::make_type(thread)
}
}
let thread = new_vm();
let (De(vec), _) = thread
.run_expr::<De<Vec2>>("test", "{ x = 1.0, y = 2.0 }")
.unwrap_or_else(|err| panic!("{}", err));
assert_eq!(vec, Vec2 {
x: 1.0,
y: 2.0
});
Enum
#[macro_use]
extern crate serde_derive;
use gluon::{Thread, ThreadExt, new_vm};
use gluon::base::types::ArcType;
use gluon::vm::api::VmType;
use gluon::vm::api::de::De;
#[derive(Debug, PartialEq, Deserialize)]
enum Enum {
A(i32),
B { string: String, test: f64 },
}
impl VmType for Enum {
type Type = Self;
fn make_type(thread: &Thread) -> ArcType {
// Use the enum type declared in gluon
thread.find_type_info("test.Enum").unwrap().into_type()
}
}
let thread = new_vm();
thread
.load_script(
"test",
r#" type Enum = | A Int | B { string : String, test : Float } in { Enum } "#,
)
.unwrap_or_else(|err| panic!("{}", err));
let (De(enum_), _) = thread
.run_expr::<De<Enum>>(
"test",
r#" let { Enum } = import! "test" in A 123 "#,
)
.unwrap_or_else(|err| panic!("{}", err));
assert_eq!(enum_, Enum::A(123));
// The field names of record variants are ignored so make sure the fields are declared correctly
let (De(enum_), _) = thread
.run_expr::<De<Enum>>(
"test",
r#" let { Enum } = import! "test" in B { string = "abc", test = 3.14 } "#,
)
.unwrap_or_else(|err| panic!("{}", err));
assert_eq!(
enum_,
Enum::B {
string: "abc".to_string(),
test: 3.14,
}
);
Tuple Fields
0: T
Trait Implementations
How many extra arguments a function returning this type requires. Used for abstract types which when used in return position should act like they still need more arguments before they are called Read more
Auto Trait Implementations
impl<T> RefUnwindSafe for De<T> where
T: RefUnwindSafe,
impl<T> UnwindSafe for De<T> where
T: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more