Codec.inspect (#4538)

* Codec.inspect

* Additional

* Adjust

* LookupSource

* Some tests

* All base tests

* Tests for BTree{Map, Set}

* Additional tests

* All extended type tests

* Additional

* Native tests

* Adjust

* Struct with names

packages/types/src/extrinsic/Extrinsic.ts

@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Compact } from '@polkadot/types-codec';
-import type { AnyJson, AnyTuple, AnyU8a, ArgsDef, IMethod } from '@polkadot/types-codec/types';
+import type { AnyJson, AnyTuple, AnyU8a, ArgsDef, IMethod, Inspect } from '@polkadot/types-codec/types';
 import type { HexString } from '@polkadot/util/types';
 import type { EcdsaSignature, Ed25519Signature, ExtrinsicUnknown, ExtrinsicV4, Sr25519Signature } from '../interfaces/extrinsics';
 import type { FunctionMetadataLatest } from '../interfaces/metadata';
@@ -12,7 +12,7 @@ import type { GenericExtrinsicEra } from './ExtrinsicEra';
 import type { ExtrinsicValueV4 } from './v4/Extrinsic';
 
 import { Base } from '@polkadot/types-codec';
-import { assert, compactAddLength, compactFromU8a, isHex, isU8a, objectProperty, objectSpread, u8aConcat, u8aToHex, u8aToU8a } from '@polkadot/util';
+import { assert, compactAddLength, compactFromU8a, compactToU8a, isHex, isU8a, objectProperty, objectSpread, u8aConcat, u8aToHex, u8aToU8a } from '@polkadot/util';
 
 import { BIT_SIGNED, BIT_UNSIGNED, DEFAULT_VERSION, UNMASK_VERSION } from './constants';
 
@@ -263,6 +263,21 @@ export class GenericExtrinsic<A extends AnyTuple = AnyTuple> extends ExtrinsicBa
     return this;
   }
 
+  /**
+   * @description Returns a breakdown of the hex encoding for this Codec
+   */
+  override inspect (): Inspect {
+    const encoded = u8aConcat(...this.toU8aInner());
+
+    return {
+      inner: [{
+        inner: this.inner.inspect().inner,
+        value: new Uint8Array([this.version])
+      }],
+      value: compactToU8a(encoded.length)
+    };
+  }
+
   /**
    * @description Sign the extrinsic with a specific keypair
    */
@@ -331,12 +346,19 @@ export class GenericExtrinsic<A extends AnyTuple = AnyTuple> extends ExtrinsicBa
    * @param isBare true when the value is not length-prefixed
    */
   public override toU8a (isBare?: boolean): Uint8Array {
-    // we do not apply bare to the internal values, rather this only determines out length addition,
-    // where we strip all lengths this creates an extrinsic that cannot be decoded
-    const encoded = u8aConcat(new Uint8Array([this.version]), this.inner.toU8a());
+    const encoded = u8aConcat(...this.toU8aInner());
 
     return isBare
       ? encoded
       : compactAddLength(encoded);
   }
+
+  public toU8aInner (): Uint8Array[] {
+    // we do not apply bare to the internal values, rather this only determines out length addition,
+    // where we strip all lengths this creates an extrinsic that cannot be decoded
+    return [
+      new Uint8Array([this.version]),
+      this.inner.toU8a()
+    ];
+  }
 }

packages/types/src/generic/LookupSource.ts

@@ -1,7 +1,7 @@
 // Copyright 2017-2022 @polkadot/types authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
-import type { Registry } from '@polkadot/types-codec/types';
+import type { Inspect, Registry } from '@polkadot/types-codec/types';
 import type { BN } from '@polkadot/util';
 import type { HexString } from '@polkadot/util/types';
 
@@ -90,6 +90,22 @@ export class GenericLookupSource extends Base<GenericAccountId | GenericAccountI
       : this.inner.encodedLength;
   }
 
+  /**
+   * @description Returns a breakdown of the hex encoding for this Codec
+   */
+  override inspect (): Inspect {
+    const value = this.inner.toU8a().subarray(0, this._rawLength);
+
+    return {
+      inner: [{ inner: [], value }],
+      value: new Uint8Array(
+        this.inner instanceof GenericAccountIndex
+          ? GenericAccountIndex.writeLength(value)
+          : ACCOUNT_ID_PREFIX
+      )
+    };
+  }
+
   /**
    * @description Returns a hex string representation of the value
    */