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additionalProperties: false for struct annotated with serde deny_unknown_fields (#30)

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Co-authored-by: Denis Kurilov <denis@routinghub.com>
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Denis Kurilov 2020-05-16 13:02:47 +02:00 • committed by GitHub
parent ea351f3b42
commit 1190b1fad9
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4 changed files with 53 additions and 2 deletions
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3
schemars_derive/src/attr/schemars_to_serde.rs
View file

@ -8,8 +8,7 @@ use syn::{Attribute, Data, Field, Meta, NestedMeta, Variant};
static SERDE_KEYWORDS: &[&str] = &[
"rename",
"rename_all",
// TODO: for structs with `deny_unknown_fields`, set schema's `additionalProperties` to false.
// "deny_unknown_fields",
"deny_unknown_fields",
"tag",
"content",
"untagged",

11
schemars_derive/src/schema_exprs.rs
View file

@ -362,12 +362,23 @@ fn expr_for_struct(fields: &[Field], cattrs: Option<&serde_attr::Container>) ->
})
.collect();
let deny_unknown_fields = cattrs
.map_or(false, |attrs| attrs.deny_unknown_fields());
quote! {
{
#(#type_defs)*
#set_container_default
let mut schema_object = schemars::schema::SchemaObject {
instance_type: Some(schemars::schema::InstanceType::Object.into()),
object: Some(Box::new(schemars::schema::ObjectValidation {
additional_properties: if #deny_unknown_fields {
Some(Box::new(false.into()))
} else {
None
},
..Default::default()
})),
..Default::default()
};
#(#properties)*