VienDesu/schemars
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Reduce memory footprint of SchemaObject.

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Nested validation structs are now wrapped in Option<Box<_>>, reducing size of JsonSchema (depending on system) from 688 to 424 bytes.
This commit is contained in:
Graham Esau 2019-10-13 20:42:29 +01:00
parent 5a82498e28
commit 72629a3c37
12 changed files with 87 additions and 38 deletions
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14
schemars_derive/src/lib.rs
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@ -142,7 +142,7 @@ fn schema_for_external_tagged_enum<'a>(
let sub_schema = schema_for_untagged_enum_variant(variant, cattrs);
wrap_schema_fields(quote! {
instance_type: Some(schemars::schema::InstanceType::Object.into()),
object: schemars::schema::ObjectValidation {
object: Some(Box::new(schemars::schema::ObjectValidation {
properties: {
let mut props = schemars::Map::new();
props.insert(#name.to_owned(), #sub_schema);
@ -154,7 +154,7 @@ fn schema_for_external_tagged_enum<'a>(
required
},
..Default::default()
},
})),
})
}));
@ -176,7 +176,7 @@ fn schema_for_internal_tagged_enum<'a>(
});
let tag_schema = wrap_schema_fields(quote! {
instance_type: Some(schemars::schema::InstanceType::Object.into()),
object: schemars::schema::ObjectValidation {
object: Some(Box::new(schemars::schema::ObjectValidation {
properties: {
let mut props = schemars::Map::new();
props.insert(#tag_name.to_owned(), #type_schema);
@ -188,7 +188,7 @@ fn schema_for_internal_tagged_enum<'a>(
required
},
..Default::default()
},
})),
});
let variant_schema = match variant.style {
Style::Unit => return tag_schema,
@ -275,7 +275,7 @@ fn schema_for_struct(fields: &[Field], cattrs: &attr::Container) -> TokenStream
let schema = wrap_schema_fields(quote! {
instance_type: Some(schemars::schema::InstanceType::Object.into()),
object: schemars::schema::ObjectValidation {
object: Some(Box::new(schemars::schema::ObjectValidation {
properties: {
let mut props = schemars::Map::new();
#(#recurse)*
@ -287,13 +287,13 @@ fn schema_for_struct(fields: &[Field], cattrs: &attr::Container) -> TokenStream
required
},
..Default::default()
},
})),
});
let flattens = flat.iter().map(|field| {
let ty = get_json_schema_type(field);
quote_spanned! {field.original.span()=>
.flatten(<#ty>::json_schema(gen)?)?
.flatten(<#ty>::json_schema_non_null(gen)?)?
}
});