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//! Interop for Specta v1. This will not be in the final v2 release but is good for the meantime.
use std::borrow::Cow;
use specta1::NamedDataType;
use crate::{
datatype::{DataType, DeprecatedType, LiteralType, PrimitiveType},
TypeCollection,
};
/// Allow for conversion between Specta v2 and v1 data types.
pub fn specta_v2_to_v1(datatype: DataType) -> specta1::DataType {
match datatype {
DataType::Any => specta1::DataType::Any,
DataType::Unknown => panic!("Specta v1 does not support unknown types"),
DataType::Primitive(p) => specta1::DataType::Primitive(match p {
PrimitiveType::i8 => specta1::PrimitiveType::i8,
PrimitiveType::i16 => specta1::PrimitiveType::i16,
PrimitiveType::i32 => specta1::PrimitiveType::i32,
PrimitiveType::i64 => specta1::PrimitiveType::i64,
PrimitiveType::i128 => specta1::PrimitiveType::i128,
PrimitiveType::isize => specta1::PrimitiveType::isize,
PrimitiveType::u8 => specta1::PrimitiveType::u8,
PrimitiveType::u16 => specta1::PrimitiveType::u16,
PrimitiveType::u32 => specta1::PrimitiveType::u32,
PrimitiveType::u64 => specta1::PrimitiveType::u64,
PrimitiveType::u128 => specta1::PrimitiveType::u128,
PrimitiveType::usize => specta1::PrimitiveType::usize,
PrimitiveType::f32 => specta1::PrimitiveType::f32,
PrimitiveType::f64 => specta1::PrimitiveType::f64,
PrimitiveType::bool => specta1::PrimitiveType::bool,
PrimitiveType::char => specta1::PrimitiveType::char,
PrimitiveType::String => specta1::PrimitiveType::String,
}),
DataType::Literal(l) => specta1::DataType::Literal(match l {
LiteralType::i8(v) => specta1::LiteralType::i8(v),
LiteralType::i16(v) => specta1::LiteralType::i16(v),
LiteralType::i32(v) => specta1::LiteralType::i32(v),
LiteralType::u8(v) => specta1::LiteralType::u8(v),
LiteralType::u16(v) => specta1::LiteralType::u16(v),
LiteralType::u32(v) => specta1::LiteralType::u32(v),
LiteralType::f32(v) => specta1::LiteralType::f32(v),
LiteralType::f64(v) => specta1::LiteralType::f64(v),
LiteralType::bool(v) => specta1::LiteralType::bool(v),
LiteralType::String(v) => specta1::LiteralType::String(v),
LiteralType::char(_) => panic!("Specta v1 does not support char literals"),
LiteralType::None => specta1::LiteralType::None,
}),
DataType::List(l) => specta1::DataType::List(Box::new(specta_v2_to_v1(l.ty().clone()))),
DataType::Map(m) => specta1::DataType::Record(Box::new((
specta_v2_to_v1(m.key_ty().clone()),
specta_v2_to_v1(m.value_ty().clone()),
))),
DataType::Nullable(n) => specta1::DataType::Nullable(Box::new(specta_v2_to_v1(*n))),
DataType::Struct(s) => specta1::DataType::Object(specta1::ObjectType {
tag: match s.tag() {
Some(v) => Some(match v {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v.clone()),
}),
None => None,
},
generics: s
.generics
.into_iter()
.map(|g| match g.0 {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
})
.collect(),
fields: match s.fields {
crate::datatype::StructFields::Unit => vec![],
crate::datatype::StructFields::Unnamed(f) => f
.fields
.into_iter()
.map(|f| specta1::ObjectField {
key: "", // TODO: Imagine an unnamed struct field having a name
optional: f.optional,
flatten: f.flatten,
ty: specta_v2_to_v1(f.ty.unwrap_or(DataType::Unknown)),
})
.collect(),
crate::datatype::StructFields::Named(f) => f
.fields
.into_iter()
.map(|(name, f)| specta1::ObjectField {
key: match name {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
optional: f.optional,
flatten: f.flatten,
ty: specta_v2_to_v1(f.ty.unwrap_or(DataType::Unknown)),
})
.collect(),
},
}),
DataType::Enum(e) => {
let generics = e
.generics
.into_iter()
.map(|v| match v.0 {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
})
.collect::<Vec<_>>();
specta1::DataType::Enum(match e.repr {
crate::datatype::EnumRepr::Untagged => specta1::EnumType::Untagged {
generics: generics.clone(),
variants: e
.variants
.into_iter()
.map(|(name, v)| match v.inner() {
crate::datatype::EnumVariants::Unit => specta1::EnumVariant::Unit,
crate::datatype::EnumVariants::Named(f) => {
specta1::EnumVariant::Named(specta1::ObjectType {
generics: generics.clone(),
fields: f
.fields
.iter()
.map(|(name, f)| specta1::ObjectField {
key: match name {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v.clone()),
},
optional: f.optional,
flatten: f.flatten,
ty: specta_v2_to_v1(
f.ty.clone().unwrap_or(DataType::Unknown),
),
})
.collect(),
tag: f.tag.clone().map(|v| match v {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
}),
})
}
crate::datatype::EnumVariants::Unnamed(f) => {
specta1::EnumVariant::Unnamed(specta1::TupleType {
generics: generics.clone(),
fields: f
.fields
.clone()
.into_iter()
.map(|f| specta_v2_to_v1(f.ty.unwrap_or(DataType::Unknown)))
.collect(),
})
}
})
.collect::<Vec<_>>(),
},
crate::datatype::EnumRepr::External => specta1::EnumType::Tagged {
variants: e
.variants
.into_iter()
.map(|(name, v)| {
(
match name {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
match v.inner {
crate::datatype::EnumVariants::Unit => {
specta1::EnumVariant::Unit
}
crate::datatype::EnumVariants::Named(f) => {
specta1::EnumVariant::Named(specta1::ObjectType {
generics: generics.clone(),
fields: f
.fields
.into_iter()
.map(|(name, f)| specta1::ObjectField {
key: match name {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
optional: f.optional,
flatten: f.flatten,
ty: specta_v2_to_v1(
f.ty.unwrap_or(DataType::Unknown),
),
})
.collect(),
tag: f.tag.map(|v| match v {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
}),
})
}
crate::datatype::EnumVariants::Unnamed(f) => {
specta1::EnumVariant::Unnamed(specta1::TupleType {
generics: generics.clone(),
fields: f
.fields
.into_iter()
.map(|f| {
specta_v2_to_v1(
f.ty.unwrap_or(DataType::Unknown),
)
})
.collect(),
})
}
},
)
})
.collect(),
generics,
repr: specta1::EnumRepr::External,
},
crate::datatype::EnumRepr::Internal { tag } => specta1::EnumType::Tagged {
generics: generics.clone(),
variants: e
.variants
.into_iter()
.map(|(name, v)| {
(
match name {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
match v.inner {
crate::datatype::EnumVariants::Unit => {
specta1::EnumVariant::Unit
}
crate::datatype::EnumVariants::Named(f) => {
specta1::EnumVariant::Named(specta1::ObjectType {
generics: generics.clone(),
fields: f
.fields
.into_iter()
.map(|(name, f)| specta1::ObjectField {
key: match name {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
optional: f.optional,
flatten: f.flatten,
ty: specta_v2_to_v1(
f.ty.unwrap_or(DataType::Unknown),
),
})
.collect(),
tag: f.tag.map(|v| match v {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
}),
})
}
crate::datatype::EnumVariants::Unnamed(f) => {
specta1::EnumVariant::Unnamed(specta1::TupleType {
generics: generics.clone(),
fields: f
.fields
.into_iter()
.map(|f| {
specta_v2_to_v1(
f.ty.unwrap_or(DataType::Unknown),
)
})
.collect(),
})
}
},
)
})
.collect(),
repr: specta1::EnumRepr::Internal {
tag: match tag {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
},
},
crate::datatype::EnumRepr::Adjacent { tag, content } => specta1::EnumType::Tagged {
generics: generics.clone(),
repr: specta1::EnumRepr::Adjacent {
tag: match tag {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
content: match content {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
},
variants: e
.variants
.clone()
.into_iter()
.map(|(name, v)| {
(
match name {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
match v.inner {
crate::datatype::EnumVariants::Unit => {
specta1::EnumVariant::Unit
}
crate::datatype::EnumVariants::Named(f) => {
specta1::EnumVariant::Named(specta1::ObjectType {
generics: generics.clone(),
fields: f
.fields
.into_iter()
.map(|(name, f)| specta1::ObjectField {
key: match name {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
optional: f.optional,
flatten: f.flatten,
ty: specta_v2_to_v1(
f.ty.unwrap_or(DataType::Unknown),
),
})
.collect(),
tag: f.tag.map(|v| match v {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
}),
})
}
crate::datatype::EnumVariants::Unnamed(f) => {
specta1::EnumVariant::Unnamed(specta1::TupleType {
generics: generics.clone(),
fields: f
.fields
.into_iter()
.map(|f| {
specta_v2_to_v1(
f.ty.unwrap_or(DataType::Unknown),
)
})
.collect(),
})
}
},
)
})
.collect(),
},
})
}
DataType::Tuple(t) => specta1::DataType::Tuple(specta1::TupleType {
fields: t.elements.into_iter().map(specta_v2_to_v1).collect(),
generics: vec![],
}),
DataType::Reference(r) => specta1::DataType::Reference(specta1::DataTypeReference {
name: match r.name {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
sid: specta1::r#type::internal_sid_hash("specta1", "", r.sid.type_name),
generics: r
.generics
.into_iter()
.map(|(_, d)| specta_v2_to_v1(d))
.collect(),
}),
DataType::Generic(g) => specta1::DataType::Generic(specta1::GenericType(match g.0 {
Cow::Borrowed(s) => s,
Cow::Owned(s) => String::leak(s),
})),
}
}
pub fn specta_v2_type_map_to_v1_type_defs(defs: TypeCollection, type_map: &mut specta1::TypeDefs) {
for (sid, dt) in defs.into_iter() {
let dtv1 = specta_v2_to_v1(dt.inner.clone());
let sid = specta1::r#type::internal_sid_hash("specta1", "", sid.type_name);
type_map.insert(
sid,
Some(NamedDataType {
name: match dt.name.clone() {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
},
sid: Some(sid),
impl_location: None,
comments: Vec::leak(vec![match dt.docs.clone() {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
}]),
export: None,
deprecated: dt.deprecated.clone().map(|v| match v {
DeprecatedType::Deprecated => "",
DeprecatedType::DeprecatedWithSince { note, .. } => match note {
Cow::Borrowed(v) => v,
Cow::Owned(v) => String::leak(v),
}
}),
item: match dtv1 {
specta1::DataType::Object(o) => specta1::NamedDataTypeItem::Object(o),
specta1::DataType::Enum(e) => specta1::NamedDataTypeItem::Enum(e),
specta1::DataType::Tuple(t) => specta1::NamedDataTypeItem::Tuple(t),
_ => unreachable!("Specta v1 doesn't support named types that aren't an object, enum or tuple!"),
}
}),
);
}
}