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Added warning about calling register_tags() when decoding #2

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Added warning about calling register_tags() when decoding #2

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9 changes: 7 additions & 2 deletions src/ur_decodable.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,13 @@ use dcbor::CBORTaggedDecodable;
/// A type that can be decoded from a UR.
pub trait URDecodable: CBORTaggedDecodable {
fn from_ur(ur: impl AsRef<UR>) -> Result<Self> where Self: Sized {
ur.as_ref().check_type(Self::cbor_tags()[0].name().as_ref().unwrap().clone())?;
Self::from_untagged_cbor(ur.as_ref().clone().into())
let tag = &Self::cbor_tags()[0];
if let Some(name) = tag.name().as_ref() {
ur.as_ref().check_type(name.clone())?;
Self::from_untagged_cbor(ur.as_ref().clone().into())
} else {
panic!("CBOR tag {} must have a name. Did you call `register_tags()`?", tag.value());
}
}

fn from_ur_string(ur_string: impl Into<String>) -> Result<Self> where Self: Sized {
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