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feat!: encapsulate
set fields in CborSet
Conwy era CDDL defines [sets](https://github.com/IntersectMBO/cardano-ledger/blob/master/eras/conway/impl/cddl-files/extra.cddl#L5) as mathematical finite sets, encoded in a cbor 258 tag. https://github.com/input-output-hk/cbor-sets-spec/blob/master/CBOR_SETS.md BREAKING_CHANGE: All CBOR serialization classes now use CborSet when constructing, setting or retrieveing fields that are defined by the CDDL as `set/nonempty_set/`. See for example `TransactionBody referenceInputs` which is now a `CborSet<Cardano.TxIn, TransactionInput>`, and this is the type used when calling `referenceInputs() or setReferenceInputs(...)`.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| import { Cardano } from '../..'; | ||
| import { CborReader, CborWriter } from '../CBOR'; | ||
| import { Hash28ByteBase16 } from '@cardano-sdk/crypto'; | ||
| import { HexBlob, InvalidArgumentError } from '@cardano-sdk/util'; | ||
| import { hexToBytes } from '../../util/misc'; | ||
|
|
||
| const CREDENTIAL_ARRAY_SIZE = 2; | ||
|
|
||
| export class Credential { | ||
| #value: Cardano.Credential; | ||
|
|
||
| private constructor(value: Cardano.Credential) { | ||
| this.#value = value; | ||
| } | ||
|
|
||
| toCbor() { | ||
| const writer = new CborWriter(); | ||
| writer.writeStartArray(CREDENTIAL_ARRAY_SIZE); | ||
| writer.writeInt(this.#value.type); | ||
| writer.writeByteString(hexToBytes(this.#value.hash as unknown as HexBlob)); | ||
| return writer.encodeAsHex(); | ||
| } | ||
|
|
||
| static fromCbor(cbor: HexBlob): Credential { | ||
| const reader = new CborReader(cbor); | ||
| if (reader.readStartArray() !== CREDENTIAL_ARRAY_SIZE) | ||
| throw new InvalidArgumentError( | ||
| 'cbor', | ||
| `Expected an array of ${CREDENTIAL_ARRAY_SIZE} elements, but got an array of ${length} elements` | ||
| ); | ||
|
|
||
| const type = Number(reader.readUInt()); | ||
| const hash = HexBlob.fromBytes(reader.readByteString()) as unknown as Hash28ByteBase16; | ||
|
|
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| reader.readEndArray(); | ||
| return new Credential({ hash, type }); | ||
| } | ||
|
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| toCore(): Cardano.Credential { | ||
| return { ...this.#value }; | ||
| } | ||
|
|
||
| static fromCore(credential: Cardano.Credential): Credential { | ||
| return new Credential({ ...credential }); | ||
| } | ||
|
|
||
| value() { | ||
| return { ...this.#value }; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| import { CborReader, CborWriter } from '../CBOR'; | ||
| import { HexBlob } from '@cardano-sdk/util'; | ||
|
|
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| export class Hash<T extends string> { | ||
| #value: T; | ||
|
|
||
| constructor(value: T) { | ||
| this.#value = value; | ||
| } | ||
|
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||
| toCbor() { | ||
| const writer = new CborWriter(); | ||
| writer.writeByteString(Buffer.from(this.#value, 'hex')); | ||
| return writer.encodeAsHex(); | ||
| } | ||
|
|
||
| static fromCbor<T extends string>(cbor: HexBlob): Hash<T> { | ||
| const reader = new CborReader(cbor); | ||
| return new Hash<T>(HexBlob.fromBytes(reader.readByteString()) as unknown as T); | ||
| } | ||
|
|
||
| toCore() { | ||
| return this.#value; | ||
| } | ||
|
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| static fromCore<T extends string>(hash: T): Hash<T> { | ||
| return new Hash<T>(hash); | ||
| } | ||
|
|
||
| value() { | ||
| return this.#value; | ||
| } | ||
| } |
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