Implement static type interface for Contract (#4604)

* Add contract static type support * Update contract typing and add tests for erc20 * Add ERC721 type tests * 🎨 Update docs and readme * 📝 Updated changelog * 🎨 Use PromiEvent implementation * 🎨 Fix some reference typing * 📝 Add compatibility docs * 📝 Update the readme to list a reference to a limitation * Add unit tests for some types * 🎨 Fix the conflicts * 🎨 Fix lint errors * 🚨 Fix linting warnings * Apply suggestions from code review Co-authored-by: Wyatt Barnes <me@wyatt.email> * Update code per feedback Co-authored-by: Wyatt Barnes <me@wyatt.email>
web3 · Dec 17, 2021 · 3f72f52 · 3f72f52
1 parent f3daf0e
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -343,3 +343,8 @@ Released with 1.0.0-beta.37 code base.
 2. `ignoreLength` will be removed as an optional parameter for `privateKeyToAccount`
 3. The `Wallet` no more supports address/number indexing. Have to use `wallet.get` instead.
 4. `Wallet.create` function doesn't accepts `entropy` param
+
+#### web3-eth-contract
+
+1. Event logs does not support types for indexed properties but named properties supported.
+2. Types for overloaded ABI functions are not yet supported.
diff --git a/packages/web3-common/src/promi_event.ts b/packages/web3-common/src/promi_event.ts
@@ -5,8 +5,8 @@ export type PromiseExecutor<T> = (
 	reject: (reason: unknown) => void,
 ) => void;
 
-export class PromiEvent<ResolveType, T extends Web3EventMap>
-	extends Web3EventEmitter<T>
+export class PromiEvent<ResolveType, EventMap extends Web3EventMap>
+	extends Web3EventEmitter<EventMap>
 	implements Promise<ResolveType>
 {
 	private readonly _promise: Promise<ResolveType>;

diff --git a/packages/web3-eth-abi/package.json b/packages/web3-eth-abi/package.json
@@ -25,9 +25,9 @@
 		"test:integration": "jest --config=./test/integration/jest.config.js"
 	},
 	"dependencies": {
-		"web3-utils": "^4.0.0-alpha.0",
+		"@ethersproject/abi": "^5.0.7",
 		"web3-common": "^1.0.0-alpha.0",
-		"@ethersproject/abi": "^5.0.7"
+		"web3-utils": "^4.0.0-alpha.0"
 	},
 	"devDependencies": {
 		"@types/jest": "^27.0.3",
@@ -41,6 +41,7 @@
 		"jest": "^27.3.1",
 		"jest-extended": "^1.1.0",
 		"jest-when": "^3.4.1",
+		"@humeris/espresso-shot": "^4.0.0",
 		"prettier": "^2.4.1",
 		"ts-jest": "^27.0.7",
 		"typescript": "^4.5.2"

diff --git a/packages/web3-eth-abi/src/api/events_api.ts b/packages/web3-eth-abi/src/api/events_api.ts
@@ -1,12 +1,12 @@
 import { AbiError } from 'web3-common';
 import { sha3Raw } from 'web3-utils';
-import { JsonAbiEventFragment } from '../types';
+import { AbiEventFragment } from '../types';
 import { jsonInterfaceMethodToString, isAbiEventFragment } from '../utils';
 
 /**
  * Encodes the event name to its ABI signature, which are the sha3 hash of the event name including input types..
  */
-export const encodeEventSignature = (functionName: string | JsonAbiEventFragment): string => {
+export const encodeEventSignature = (functionName: string | AbiEventFragment): string => {
 	if (typeof functionName !== 'string' && !isAbiEventFragment(functionName)) {
 		throw new AbiError('Invalid parameter value in encodeEventSignature');
 	}

diff --git a/packages/web3-eth-abi/src/api/functions_api.ts b/packages/web3-eth-abi/src/api/functions_api.ts
@@ -1,13 +1,13 @@
 import { AbiError } from 'web3-common';
 import { sha3Raw } from 'web3-utils';
 import { isAbiFunctionFragment, jsonInterfaceMethodToString } from '../utils';
-import { JsonAbiFunctionFragment } from '../types';
+import { AbiFunctionFragment } from '../types';
 import { encodeParameters } from './parameters_api';
 
 /**
  * Encodes the function name to its ABI representation, which are the first 4 bytes of the sha3 of the function name including  types.
  */
-export const encodeFunctionSignature = (functionName: string | JsonAbiFunctionFragment): string => {
+export const encodeFunctionSignature = (functionName: string | AbiFunctionFragment): string => {
 	if (typeof functionName !== 'string' && !isAbiFunctionFragment(functionName)) {
 		throw new AbiError('Invalid parameter value in encodeFunctionSignature');
 	}
@@ -27,7 +27,7 @@ export const encodeFunctionSignature = (functionName: string | JsonAbiFunctionFr
  * Encodes a function call from its json interface and parameters.
  */
 export const encodeFunctionCall = (
-	jsonInterface: JsonAbiFunctionFragment,
+	jsonInterface: AbiFunctionFragment,
 	params: unknown[],
 ): string => {
 	if (!isAbiFunctionFragment(jsonInterface)) {

diff --git a/packages/web3-eth-abi/src/api/logs_api.ts b/packages/web3-eth-abi/src/api/logs_api.ts
@@ -1,5 +1,5 @@
 import { HexString } from 'web3-utils';
-import { JsonAbiParameter } from '../types';
+import { AbiParameter } from '../types';
 import { decodeParameter, decodeParametersWith } from './parameters_api';
 
 const STATIC_TYPES = ['bool', 'string', 'int', 'uint', 'address', 'fixed', 'ufixed'];
@@ -8,28 +8,28 @@ const STATIC_TYPES = ['bool', 'string', 'int', 'uint', 'address', 'fixed', 'ufix
  * Decodes ABI-encoded log data and indexed topic data
  */
 export const decodeLog = <ReturnType extends Record<string, unknown>>(
-	inputs: Array<JsonAbiParameter>,
+	inputs: Array<AbiParameter>,
 	data: HexString,
 	topics: string | string[],
 ) => {
 	const clonedTopics = Array.isArray(topics) ? topics : [topics];
 
 	const clonedData = data ?? '';
 
-	const notIndexedInputs: Array<string | JsonAbiParameter> = [];
-	const indexedParams: Array<string | JsonAbiParameter> = [];
+	const notIndexedInputs: Array<string | AbiParameter> = [];
+	const indexedParams: Array<string | AbiParameter> = [];
 	let topicCount = 0;
 
 	// TODO check for anonymous logs?
 	for (const [i, input] of inputs.entries()) {
 		if (input.indexed) {
 			indexedParams[i] = STATIC_TYPES.some(s => input.type.startsWith(s))
-				? (decodeParameter(input.type, clonedTopics[topicCount]) as JsonAbiParameter)
+				? (decodeParameter(input.type, clonedTopics[topicCount]) as AbiParameter)
 				: clonedTopics[topicCount];
 
 			topicCount += 1;
 		} else {
-			notIndexedInputs[i] = input as unknown as JsonAbiParameter;
+			notIndexedInputs[i] = input as unknown as AbiParameter;
 		}
 	}
 

diff --git a/packages/web3-eth-abi/src/api/parameters_api.ts b/packages/web3-eth-abi/src/api/parameters_api.ts
@@ -8,9 +8,11 @@ import { formatParam, isAbiFragment, mapTypes, modifyParams } from '../utils';
 /**
  * Should be used to encode list of params
  */
-export const encodeParameters = (abi: AbiInput[], params: unknown[]): string => {
+export const encodeParameters = (abi: ReadonlyArray<AbiInput>, params: unknown[]): string => {
 	try {
-		const modifiedTypes = mapTypes(Array.isArray(abi) ? abi : [abi]);
+		const modifiedTypes = mapTypes(
+			Array.isArray(abi) ? (abi as AbiInput[]) : ([abi] as unknown as AbiInput[]),
+		);
 		const modifiedParams: Array<unknown> = [];
 
 		for (const [index, param] of params.entries()) {

diff --git a/packages/web3-eth-abi/src/number_map_type.ts b/packages/web3-eth-abi/src/number_map_type.ts
@@ -0,0 +1,34 @@
+type _SolidityIndexRange =
+	| 1
+	| 2
+	| 3
+	| 4
+	| 5
+	| 6
+	| 7
+	| 8
+	| 9
+	| 10
+	| 11
+	| 12
+	| 13
+	| 14
+	| 15
+	| 16
+	| 17
+	| 18
+	| 19
+	| 20
+	| 21
+	| 22
+	| 25
+	| 26
+	| 27
+	| 28
+	| 29
+	| 30;
+
+export type ConvertToNumber<
+	T extends string,
+	Range extends number = _SolidityIndexRange,
+> = Range extends unknown ? (`${Range}` extends T ? Range : never) : never;