Allow statements to reiterate

Signed-off-by: Stephen Celis <[email protected]>

Author: stephencelis

SQLite Tests/StatementTests.swift

@@ -163,6 +163,15 @@ class StatementTests: XCTestCase {
         XCTAssertEqual(3, count)
     }
 
+    func test_generate_allowsReuse() {
+        InsertUsers(db, "alice", "betsy", "cindy")
+        var count = 0
+        let stmt = db.prepare("SELECT id FROM users")
+        for row in stmt { count++ }
+        for row in stmt { count++ }
+        XCTAssertEqual(6, count)
+    }
+
     func test_cursor_returnsValues() {
         InsertUser(db, "alice")
         let stmt = db.prepare("SELECT id, email FROM users")

SQLite/Statement.swift

@@ -197,7 +197,10 @@ public final class Statement {
 // MARK: - SequenceType
 extension Statement: SequenceType {
 
-    public func generate() -> Statement { return self }
+    public func generate() -> Statement {
+        reset(clearBindings: false)
+        return self
+    }
 
 }