add shieldFunds to rustwelding

ZcashLightClientKit/Rust/ZcashRustBackend.swift

@@ -225,6 +225,26 @@ class ZcashRustBackend: ZcashRustBackendWelding {
                                          UInt(outputParamsPath.lengthOfBytes(using: .utf8)))
     }
     
+    
+    static func shieldFunds(dbCache: URL, dbData: URL, account: Int32, tsk: String, extsk: String, memo: String?, spendParamsPath: String, outputParamsPath: String) -> Int64 {
+        let dbData = dbData.osStr()
+        let dbCache = dbCache.osStr()
+        let memoBytes = memo ?? ""
+        
+        return zcashlc_shield_funds(dbData.0,
+                                    dbData.1,
+                                    dbCache.0,
+                                    dbCache.1,
+                                    account,
+                                    tsk,
+                                    extsk,
+                                    memoBytes,
+                                    spendParamsPath,
+                                    UInt(spendParamsPath.lengthOfBytes(using: .utf8)),
+                                    outputParamsPath,
+                                    UInt(outputParamsPath.lengthOfBytes(using: .utf8)))
+    }
+    
     static func deriveExtendedFullViewingKey(_ spendingKey: String) throws -> String? {
         
         guard !spendingKey.containsCStringNullBytesBeforeStringEnding() else {

ZcashLightClientKit/Rust/ZcashRustBackendWelding.swift

@@ -182,7 +182,6 @@ public protocol ZcashRustBackendWelding {
         - dbData: URL for the Data DB
         - account: the account index that will originate the transaction
         - extsk: extended spending key string
-        - consensusBranchId: the current consensus ID
         - to: recipient address
         - value: transaction amount in Zatoshi
         - memo: the memo string for this transaction
@@ -191,6 +190,20 @@ public protocol ZcashRustBackendWelding {
      */
     static func createToAddress(dbData: URL, account: Int32, extsk: String, consensusBranchId: Int32, to: String, value: Int64, memo: String?, spendParamsPath: String, outputParamsPath: String) -> Int64
     
+    /**
+     Creates a transaction to shield all found UTXOs in cache db.
+     - Parameters:
+        - dbCache: URL for the Cache DB
+        - dbData: URL for the Data DB
+        - account: the account index that will originate the transaction
+        - tsk: transparent Secret Key for the shielded funds.
+        - extsk: extended spending key string
+        - memo: the memo string for this transaction
+        - spendParamsPath: path escaped String for the filesystem locations where the spend parameters are located
+        - outputParamsPath: path escaped String for the filesystem locations where the output parameters are located
+     */
+    static func shieldFunds(dbCache: URL, dbData: URL, account: Int32, tsk: String, extsk: String, memo: String?, spendParamsPath: String, outputParamsPath: String) -> Int64
+    
     /**
      Derives a full viewing key from a seed
      - Parameter spendingKey: a string containing the spending key