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fix: none does not need a type variable

This commit is contained in:
rvcas 2022-11-16 21:41:03 -05:00
parent 4551d23c2f
commit d94ae82901
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GPG Key ID: C09B64E263F7D68C
1 changed files with 11 additions and 66 deletions
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77
crates/lang/src/builtins.rs
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@ -171,70 +171,15 @@ pub fn prelude(id_gen: &IdGenerator) -> TypeInfo {
},
);
// Result(value, error)
let result_value = generic_var(id_gen.next());
let result_error = generic_var(id_gen.next());
prelude.types.insert(
RESULT.to_string(),
TypeConstructor {
location: Span::empty(),
parameters: vec![result_value.clone(), result_error.clone()],
tipo: result(result_value, result_error),
module: "".to_string(),
public: true,
},
);
prelude.types_constructors.insert(
RESULT.to_string(),
vec!["Ok".to_string(), "Err".to_string()],
);
let ok = generic_var(id_gen.next());
let error = generic_var(id_gen.next());
let _ = prelude.values.insert(
"Ok".to_string(),
ValueConstructor::public(
function(vec![ok.clone()], result(ok, error)),
ValueConstructorVariant::Record {
module: "".into(),
name: "Ok".to_string(),
field_map: None::<FieldMap>,
arity: 1,
location: Span::empty(),
constructors_count: 2,
},
),
);
let ok = generic_var(id_gen.next());
let error = generic_var(id_gen.next());
let _ = prelude.values.insert(
"Error".to_string(),
ValueConstructor::public(
function(vec![error.clone()], result(ok, error)),
ValueConstructorVariant::Record {
module: "".into(),
name: "Error".to_string(),
field_map: None::<FieldMap>,
arity: 1,
location: Span::empty(),
constructors_count: 2,
},
),
);
// Option(value, none)
// Option(value)
let option_value = generic_var(id_gen.next());
let option_none = generic_var(id_gen.next());
prelude.types.insert(
OPTION.to_string(),
TypeConstructor {
location: Span::empty(),
parameters: vec![option_value.clone(), option_none.clone()],
tipo: option(option_value, option_none),
parameters: vec![option_value.clone()],
tipo: option(option_value),
module: "".to_string(),
public: true,
},
@ -246,11 +191,11 @@ pub fn prelude(id_gen: &IdGenerator) -> TypeInfo {
);
let some = generic_var(id_gen.next());
let none = generic_var(id_gen.next());
let _ = prelude.values.insert(
prelude.values.insert(
"Some".to_string(),
ValueConstructor::public(
function(vec![some.clone()], option(some, none)),
function(vec![some.clone()], option(some)),
ValueConstructorVariant::Record {
module: "".into(),
name: "Some".to_string(),
@ -263,11 +208,11 @@ pub fn prelude(id_gen: &IdGenerator) -> TypeInfo {
);
let some = generic_var(id_gen.next());
let none = generic_var(id_gen.next());
let _ = prelude.values.insert(
prelude.values.insert(
"None".to_string(),
ValueConstructor::public(
function(vec![none.clone()], option(some, none)),
option(some),
ValueConstructorVariant::Record {
module: "".into(),
name: "None".to_string(),
@ -541,12 +486,12 @@ pub fn result(a: Arc<Type>, e: Arc<Type>) -> Arc<Type> {
})
}
pub fn option(a: Arc<Type>, e: Arc<Type>) -> Arc<Type> {
pub fn option(a: Arc<Type>) -> Arc<Type> {
Arc::new(Type::App {
public: true,
name: OPTION.to_string(),
module: "".to_string(),
args: vec![a, e],
args: vec![a],
})
}