remove problematic default convert(from:) from SQLDataType and implement it in each type instead

Author: ahmedk92

Sources/SwiftSQL/SQLDataType.swift

@@ -15,10 +15,6 @@ public protocol SQLDataType {
     static func convert(from value: Any) -> Self?
 }
 
-public extension SQLDataType {
-    static func convert(from value: Any) -> Self? { value as? Self }
-}
-
 extension Int: SQLDataType {
     public func sqlBind(statement: OpaquePointer, index: Int32) {
         sqlite3_bind_int64(statement, index, Int64(self))
@@ -42,6 +38,11 @@ extension Int32: SQLDataType {
     public static func sqlColumn(statement: OpaquePointer, index: Int32) -> Int32 {
         sqlite3_column_int(statement, index)
     }
+    
+    public static func convert(from value: Any) -> Self? {
+        guard let int64 = value as? Int64 else { return nil }
+        return Int32(int64)
+    }
 }
 
 extension Int64: SQLDataType {
@@ -52,6 +53,8 @@ extension Int64: SQLDataType {
     public static func sqlColumn(statement: OpaquePointer, index: Int32) -> Int64 {
         sqlite3_column_int64(statement, index)
     }
+    
+    public static func convert(from value: Any) -> Self? { value as? Self }
 }
 
 extension Double: SQLDataType {
@@ -62,6 +65,8 @@ extension Double: SQLDataType {
     public static func sqlColumn(statement: OpaquePointer, index: Int32) -> Double {
         sqlite3_column_double(statement, index)
     }
+    
+    public static func convert(from value: Any) -> Self? { value as? Self }
 }
 
 extension String: SQLDataType {
@@ -73,6 +78,8 @@ extension String: SQLDataType {
         guard let pointer = sqlite3_column_text(statement, index) else { return "" }
         return String(cString: pointer)
     }
+    
+    public static func convert(from value: Any) -> Self? { value as? Self }
 }
 
 extension Data: SQLDataType {
@@ -87,6 +94,8 @@ extension Data: SQLDataType {
         let count = Int(sqlite3_column_bytes(statement, Int32(index)))
         return Data(bytes: pointer, count: count)
     }
+    
+    public static func convert(from value: Any) -> Self? { value as? Self }
 }
 
 private let SQLITE_TRANSIENT = unsafeBitCast(-1, to: sqlite3_destructor_type.self)