feat(tempo): support client-less token .call builders

.changeset/tidy-wolves-shake.md

@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+`viem/tempo`: Supported calling token `.call` builders without a Client (restores the pre-`2.54` call signature). When the Client is omitted, `token` must be a TIP20 token id or contract address, and formatted amounts require explicit `decimals`.

src/clients/createClient.ts

@@ -371,9 +371,13 @@ export function bindActionDecorators(
     if (Object.hasOwn(action, key)) {
       const helper = action[key]
       wrapped[key] = (args: any = {}) => {
-        if (helper.length >= 2) return helper(client, args)
-        if (helper.length === 0) return helper()
-        return helper(args)
+        // Single-parameter helpers are client-less (e.g. `dex.buy.call(args)`).
+        // Everything else is called with `(client, args)`: two-parameter
+        // helpers, rest-parameter helpers that accept `(client, args)` or
+        // `(args)` (`length === 0`, e.g. `token.transfer.call`), and
+        // zero-argument helpers, which ignore the extra arguments.
+        if (helper.length === 1) return helper(args)
+        return helper(client, args)
       }
     }
   for (const key of ['extractEvent', 'extractEvents'] as const)

src/tempo/actions/token.test.ts

@@ -29,6 +29,54 @@ const tokenlessClient = getClient({
   tokens: undefined,
 })
 
+describe('call (without client)', () => {
+  test('default: builds the same call as the client form', () => {
+    const args = {
+      amount: parseUnits('1.25', 6),
+      to: account2.address,
+      token: addresses.alphaUsd,
+    } as const
+    expect(actions.token.transfer.call(args)).toEqual(
+      actions.token.transfer.call(client, args),
+    )
+
+    expect(
+      actions.token.approve.call({
+        amount: 100n,
+        spender: account2.address,
+        token: TokenId.fromAddress(addresses.alphaUsd),
+      }).to,
+    ).toBe(addresses.alphaUsd)
+
+    expect(
+      actions.token.getBalance.call({
+        account: account2.address,
+        token: addresses.alphaUsd,
+      }).args,
+    ).toEqual([account2.address])
+  })
+
+  test('amount: formatted amounts require explicit decimals', () => {
+    expect(
+      actions.token.mint.call({
+        amount: { decimals: 6, formatted: '1.25' },
+        to: account2.address,
+        token: addresses.alphaUsd,
+      }).args,
+    ).toEqual([account2.address, parseUnits('1.25', 6)])
+
+    expect(() =>
+      actions.token.mint.call({
+        amount: { formatted: '1.25' },
+        to: account2.address,
+        token: addresses.alphaUsd,
+      }),
+    ).toThrowErrorMatchingInlineSnapshot(
+      `[Error: Token decimals are required. Pass \`amount.decimals\` or select a declared token.]`,
+    )
+  })
+})
+
 describe('approve', () => {
   test('decimals: requires decimals for an undeclared formatted amount', async () => {
     await expect(