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mod interface {
use schema::model::RootNode;
use types::scalars::EmptyMutation;
use value::Value;
trait Pet {
fn name(&self) -> &str;
fn as_dog(&self) -> Option<&Dog> {
None
}
fn as_cat(&self) -> Option<&Cat> {
None
}
}
graphql_interface!(<'a> &'a Pet: () as "Pet" |&self| {
field name() -> &str { self.name() }
instance_resolvers: |&_| {
&Dog => self.as_dog(),
&Cat => self.as_cat(),
}
});
struct Dog {
name: String,
woofs: bool,
}
impl Pet for Dog {
fn name(&self) -> &str {
&self.name
}
fn as_dog(&self) -> Option<&Dog> {
Some(self)
}
}
graphql_object!(Dog: () |&self| {
field name() -> &str { &self.name }
field woofs() -> bool { self.woofs }
interfaces: [&Pet]
});
struct Cat {
name: String,
meows: bool,
}
impl Pet for Cat {
fn name(&self) -> &str {
&self.name
}
fn as_cat(&self) -> Option<&Cat> {
Some(self)
}
}
graphql_object!(Cat: () |&self| {
field name() -> &str { &self.name }
field meows() -> bool { self.meows }
interfaces: [&Pet]
});
struct Schema {
pets: Vec<Box<Pet>>,
}
graphql_object!(Schema: () |&self| {
field pets() -> Vec<&Pet> {
self.pets.iter().map(|p| p.as_ref()).collect()
}
});
#[test]
fn test() {
let schema = RootNode::new(
Schema {
pets: vec![
Box::new(Dog {
name: "Odie".to_owned(),
woofs: true,
}),
Box::new(Cat {
name: "Garfield".to_owned(),
meows: false,
}),
],
},
EmptyMutation::<()>::new(),
);
let doc = r"
{
pets {
name
... on Dog {
woofs
}
... on Cat {
meows
}
}
}";
let vars = vec![].into_iter().collect();
let (result, errs) = ::execute(doc, None, &schema, &vars, &()).expect("Execution failed");
assert_eq!(errs, []);
println!("Result: {:#?}", result);
assert_eq!(
result,
Value::object(
vec![(
"pets",
Value::list(vec![
Value::object(
vec![
("name", Value::scalar("Odie")),
("woofs", Value::scalar(true)),
].into_iter()
.collect(),
),
Value::object(
vec![
("name", Value::scalar("Garfield")),
("meows", Value::scalar(false)),
].into_iter()
.collect(),
),
]),
)].into_iter()
.collect()
)
);
}
}
mod union {
use schema::model::RootNode;
use types::scalars::EmptyMutation;
use value::Value;
trait Pet {
fn as_dog(&self) -> Option<&Dog> {
None
}
fn as_cat(&self) -> Option<&Cat> {
None
}
}
graphql_union!(<'a> &'a Pet: () as "Pet" |&self| {
instance_resolvers: |&_| {
&Dog => self.as_dog(),
&Cat => self.as_cat(),
}
});
struct Dog {
name: String,
woofs: bool,
}
impl Pet for Dog {
fn as_dog(&self) -> Option<&Dog> {
Some(self)
}
}
graphql_object!(Dog: () |&self| {
field name() -> &str { &self.name }
field woofs() -> bool { self.woofs }
});
struct Cat {
name: String,
meows: bool,
}
impl Pet for Cat {
fn as_cat(&self) -> Option<&Cat> {
Some(self)
}
}
graphql_object!(Cat: () |&self| {
field name() -> &str { &self.name }
field meows() -> bool { self.meows }
});
struct Schema {
pets: Vec<Box<Pet>>,
}
graphql_object!(Schema: () |&self| {
field pets() -> Vec<&Pet> {
self.pets.iter().map(|p| p.as_ref()).collect()
}
});
#[test]
fn test() {
let schema = RootNode::new(
Schema {
pets: vec![
Box::new(Dog {
name: "Odie".to_owned(),
woofs: true,
}),
Box::new(Cat {
name: "Garfield".to_owned(),
meows: false,
}),
],
},
EmptyMutation::<()>::new(),
);
let doc = r"
{
pets {
__typename
... on Dog {
name
woofs
}
... on Cat {
name
meows
}
}
}";
let vars = vec![].into_iter().collect();
let (result, errs) = ::execute(doc, None, &schema, &vars, &()).expect("Execution failed");
assert_eq!(errs, []);
println!("Result: {:#?}", result);
assert_eq!(
result,
Value::object(
vec![(
"pets",
Value::list(vec![
Value::object(
vec![
("__typename", Value::scalar("Dog")),
("name", Value::scalar("Odie")),
("woofs", Value::scalar(true)),
].into_iter()
.collect(),
),
Value::object(
vec![
("__typename", Value::scalar("Cat")),
("name", Value::scalar("Garfield")),
("meows", Value::scalar(false)),
].into_iter()
.collect(),
),
]),
)].into_iter()
.collect()
)
);
}
}