Allow pay_with_call to take multiple arguments (#1401)

Author: HCastano

crates/env/src/engine/off_chain/test_api.rs

@@ -399,8 +399,8 @@ pub fn assert_contract_termination<T, F>(
 /// Prepend contract message call with value transfer. Used for tests in off-chain environment.
 #[macro_export]
 macro_rules! pay_with_call {
-    ($contract:ident . $message:ident ( $($params:ty)? ) , $amount:expr) => {{
+    ($contract:ident . $message:ident ( $( $params:expr ),* ) , $amount:expr) => {{
         $crate::test::transfer_in::<Environment>($amount);
-        $contract.$message($($params:ty)?)
+        $contract.$message($ ($params) ,*)
     }}
 }

crates/ink/tests/compile_tests.rs

@@ -35,4 +35,6 @@ fn ui_tests() {
     t.compile_fail("tests/ui/trait_def/fail/*.rs");
 
     t.pass("tests/ui/chain_extension/E-01-simple.rs");
+
+    t.pass("tests/ui/pay_with_call/pass/multiple_args.rs");
 }

crates/ink/tests/ui/pay_with_call/pass/multiple_args.rs

@@ -0,0 +1,29 @@
+#[ink::contract]
+mod contract {
+    #[ink(storage)]
+    pub struct Contract {}
+
+    impl Contract {
+        #[ink(constructor)]
+        pub fn new() -> Self {
+            Self {}
+        }
+
+        #[ink(message)]
+        pub fn message0(&self) {}
+
+        #[ink(message)]
+        pub fn message1(&self, _arg1: u8) {}
+
+        #[ink(message)]
+        pub fn message2(&self, _arg1: u8, _arg2: (u8, AccountId)) {}
+
+        fn check_compiles(&self) {
+            ink::env::pay_with_call!(self.message0(), 0);
+            ink::env::pay_with_call!(self.message1(0), 0);
+            ink::env::pay_with_call!(self.message2(0, (0, Self::env().account_id())), 0);
+        }
+    }
+}
+
+fn main() {}