Expose constructoir meta on Blueprint/Code (#4486)

Author: jacogr

packages/api-contract/src/base/Blueprint.ts

@@ -47,7 +47,7 @@ export class Blueprint<ApiType extends ApiTypes> extends Base<ApiType> {
 
     this.abi.constructors.forEach((c): void => {
       if (isUndefined(this.#tx[c.method])) {
-        this.#tx[c.method] = createBluePrintTx((o, p) => this.#deploy(c, o, p));
+        this.#tx[c.method] = createBluePrintTx(c, (o, p) => this.#deploy(c, o, p));
       }
     });
   }

packages/api-contract/src/base/Code.ts

@@ -52,7 +52,7 @@ export class Code<ApiType extends ApiTypes> extends Base<ApiType> {
 
     this.abi.constructors.forEach((c): void => {
       if (isUndefined(this.#tx[c.method])) {
-        this.#tx[c.method] = createBluePrintTx((o, p) => this.#instantiate(c, o, p));
+        this.#tx[c.method] = createBluePrintTx(c, (o, p) => this.#instantiate(c, o, p));
       }
     });
   }

packages/api-contract/src/base/Contract.ts

@@ -18,6 +18,7 @@ import { assert, BN, BN_HUNDRED, BN_ONE, BN_ZERO, bnToBn, isFunction, isUndefine
 import { Abi } from '../Abi';
 import { applyOnEvent, extractOptions, isOptions } from '../util';
 import { Base } from './Base';
+import { withMeta } from './util';
 
 export interface ContractConstructor<ApiType extends ApiTypes> {
   new(api: ApiBase<ApiType>, abi: string | Record<string, unknown> | Abi, address: string | AccountId): Contract<ApiType>;
@@ -29,12 +30,6 @@ const ERROR_NO_CALL = 'Your node does not expose the contracts.call RPC. This is
 
 const l = logger('Contract');
 
-function withMeta <T extends { meta: AbiMessage }> (meta: AbiMessage, creator: Omit<T, 'meta'>): T {
-  (creator as T).meta = meta;
-
-  return creator as T;
-}
-
 function createQuery <ApiType extends ApiTypes> (meta: AbiMessage, fn: (origin: string | AccountId | Uint8Array, options: ContractOptions, params: unknown[]) => ContractCallResult<ApiType, ContractCallOutcome>): ContractQuery<ApiType> {
   return withMeta(meta, (origin: string | AccountId | Uint8Array, options: bigint | string | number | BN | ContractOptions, ...params: unknown[]): ContractCallResult<ApiType, ContractCallOutcome> =>
     isOptions(options)

packages/api-contract/src/base/types.ts

@@ -8,16 +8,16 @@ import type { AccountId } from '@polkadot/types/interfaces';
 import type { BN } from '@polkadot/util';
 import type { AbiMessage, BlueprintOptions, ContractCallOutcome, ContractOptions } from '../types';
 
-export interface BlueprintDeploy<ApiType extends ApiTypes> {
+export interface MessageMeta {
+  readonly meta: AbiMessage;
+}
+
+export interface BlueprintDeploy<ApiType extends ApiTypes> extends MessageMeta {
   (options: BlueprintOptions, ...params: unknown[]): SubmittableExtrinsic<ApiType>;
   // @deprecated Use options form (to be dropped in a major update)
   (value: bigint | string | number | BN, gasLimit: bigint | string | number | BN, ...params: unknown[]): SubmittableExtrinsic<ApiType>;
 }
 
-export interface MessageMeta {
-  readonly meta: AbiMessage;
-}
-
 export interface ContractQuery<ApiType extends ApiTypes> extends MessageMeta {
   (origin: AccountId | string | Uint8Array, options: ContractOptions, ...params: unknown[]): ContractCallResult<ApiType, ContractCallOutcome>;
   // @deprecated Use options form (to be dropped in a major update)

packages/api-contract/src/base/util.ts

@@ -5,7 +5,7 @@ import type { SubmittableResult } from '@polkadot/api';
 import type { SubmittableExtrinsic } from '@polkadot/api/submittable/types';
 import type { ApiTypes } from '@polkadot/api/types';
 import type { BN } from '@polkadot/util';
-import type { AbiConstructor, BlueprintOptions } from '../types';
+import type { AbiConstructor, AbiMessage, BlueprintOptions } from '../types';
 import type { BlueprintDeploy, ContractGeneric } from './types';
 
 import { Bytes } from '@polkadot/types';
@@ -16,11 +16,18 @@ import { extractOptions, isOptions } from '../util';
 
 export const EMPTY_SALT = new Uint8Array();
 
-export function createBluePrintTx <ApiType extends ApiTypes, R extends SubmittableResult> (fn: (options: BlueprintOptions, params: unknown[]) => SubmittableExtrinsic<ApiType, R>): BlueprintDeploy<ApiType> {
-  return (options: bigint | string | number | BN | BlueprintOptions, ...params: unknown[]): SubmittableExtrinsic<ApiType, R> =>
+export function withMeta <T extends { meta: AbiMessage }> (meta: AbiMessage, creator: Omit<T, 'meta'>): T {
+  (creator as T).meta = meta;
+
+  return creator as T;
+}
+
+export function createBluePrintTx <ApiType extends ApiTypes, R extends SubmittableResult> (meta: AbiMessage, fn: (options: BlueprintOptions, params: unknown[]) => SubmittableExtrinsic<ApiType, R>): BlueprintDeploy<ApiType> {
+  return withMeta(meta, (options: bigint | string | number | BN | BlueprintOptions, ...params: unknown[]): SubmittableExtrinsic<ApiType, R> =>
     isOptions(options)
       ? fn(options, params)
-      : fn(...extractOptions<BlueprintOptions>(options, params));
+      : fn(...extractOptions<BlueprintOptions>(options, params))
+  );
 }
 
 export function createBluePrintWithId <T> (fn: (constructorOrId: AbiConstructor | string | number, options: BlueprintOptions, params: unknown[]) => T): ContractGeneric<BlueprintOptions, T> {