test: multicall types

wevm · Aug 18, 2023 · 31a7848 · 31a7848
1 parent 6a6bb05
commit 31a7848
Show file tree

Hide file tree

Showing 3 changed files with 35 additions and 0 deletions.
diff --git a/src/actions/public/multicall.test-d.ts b/src/actions/public/multicall.test-d.ts
@@ -307,3 +307,35 @@ test('overloads', async () => {
     [number, string, { foo: Address; bar: Address }]
   >()
 })
+
+test('MulticallParameters', async () => {
+  const abi = parseAbi([
+    'function foo() view returns (int8)',
+    'function foo(address) view returns (string)',
+    'function foo(address, address) view returns ((address foo, address bar))',
+    'function bar() view returns (int8)',
+  ])
+
+  type Result = Parameters<
+    typeof multicall<
+      [
+        {
+          address: '0x'
+          abi: typeof abi
+          functionName: 'foo'
+        },
+      ],
+      typeof publicClient.chain
+    >
+  >[1]['contracts'][0]
+  expectTypeOf<Result>().toEqualTypeOf<{
+    address: Address
+    abi: typeof abi
+    functionName: 'foo' | 'bar'
+    args?:
+      | readonly []
+      | readonly [Address]
+      | readonly [Address, Address]
+      | undefined
+  }>()
+})
diff --git a/src/types/contract.test-d.ts b/src/types/contract.test-d.ts
@@ -106,6 +106,8 @@ test('Widen', () => {
   expectTypeOf<Widen<(123n | '0x')[]>>().toEqualTypeOf<
     readonly (bigint | Address)[]
   >()
+
+  expectTypeOf<Widen<readonly unknown[]>>().toEqualTypeOf<readonly unknown[]>()
 })
 
 test('ExtractAbiFunctionForArgs', () => {

diff --git a/src/types/contract.ts b/src/types/contract.ts
@@ -48,6 +48,7 @@ export type Args<
 >
 
 export type Widen<type> =
+  | ([unknown] extends [type] ? unknown : never)
   | (type extends Function ? type : never)
   | (type extends ResolvedConfig['BigIntType'] ? bigint : never)
   | (type extends boolean ? boolean : never)