Merge pull request #83 from Relayz-io/silvestr/near-primitives-function-call-err

Add a new error type for a View call -> FunctionCallError

near-primitives-light/Cargo.toml

 chrono = { version = "0.4", features = ["serde"] }
 serde = { version = "1", default-features = false, features = ["derive", "rc"] }
 near-primitives-core = "0.15"
+near-vm-errors = "3.1"

near-primitives-light/src/errors.rs

         #[serde(with = "dec_format")]
         minimum_stake: Balance,
     },
+    /// An error occurred during a `FunctionCall` Action, parameter is debug message.
+    FunctionCallError(near_vm_errors::FunctionCallErrorSer),
+    /// Error occurs when a new `ActionReceipt` created by the `FunctionCall` action fails
+    /// receipt validation.
+    NewReceiptValidationError(ReceiptValidationError),
     /// Error occurs when a `CreateAccount` action is called on hex-characters
     /// account of length 64.  See implicit account creation NEP:
     /// <https://github.com/nearprotocol/NEPs/pull/71>.
             ActionErrorKind::DeleteAccountStaking { account_id } => {
                 write!(f, "Account {:?} is staking and can not be deleted", account_id)
             }
+            ActionErrorKind::FunctionCallError(s) => write!(f, "{:?}", s),
+            ActionErrorKind::NewReceiptValidationError(e) => {
+                write!(f, "An new action receipt created during a FunctionCall is not valid: {}", e)
+            }
             ActionErrorKind::InsufficientStake { account_id, stake, minimum_stake } => write!(f, "Account {} tries to stake {} but minimum required stake is {}", account_id, stake, minimum_stake),
             ActionErrorKind::OnlyImplicitAccountCreationAllowed { account_id } => write!(f, "CreateAccount action is called on hex-characters account of length 64 {}", account_id),
             ActionErrorKind::DeleteAccountWithLargeState { account_id } => write!(f, "The state of account {} is too large and therefore cannot be deleted", account_id),