Changeset 14:3caa1d3122db in xplcommon for src/xplcommon/Failable.h

Timestamp:

12/29/12 10:03:12 (11 years ago)

Author:

István Váradi <ivaradi@…>

Branch:

default

Phase:

public

Message:

Moved the storage of the error code to where it belongs

File:

• src/xplcommon/Failable.h (modified) (2 diffs)

src/xplcommon/Failable.h

@@ -82 +82 @@
 
 //------------------------------------------------------------------------------
+
+/**
+ * An object that references another failable object and fails
+ * together with that object.
+ *
+ * The Child class should contain a function named getFailable()
+ * which returns the failable object.
+ */
+template <class Child>
+class FailableReference
+{
+public:
+    /**
+     * Indicate if the referenced object has failed.
+     */
+    bool failed() const;
+
+    /**
+     * Get the error code from the referenced object.
+     */
+    errorCode_t getErrorCode() const;
+
+    /**
+     * Discard the error code of the referenced object.
+     */
+    void repair();
+};
+
+//------------------------------------------------------------------------------
 // Inline definitions
 //------------------------------------------------------------------------------
@@ -119 +148 @@
 
 //------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+
+template <class Child>
+inline bool FailableReference<Child>::failed() const
+{
+    return static_cast<const Child*>(this)->getFailable().failed();
+}
+
+//------------------------------------------------------------------------------
+
+template <class Child>
+inline errorCode_t FailableReference<Child>::getErrorCode() const
+{
+    return static_cast<const Child*>(this)->getFailable().getErrorCode();
+}
+
+//------------------------------------------------------------------------------
+
+template <class Child>
+inline void FailableReference<Child>::repair()
+{
+    static_cast<Child*>(this)->getFailable().repair();
+}
+
+//------------------------------------------------------------------------------
 
 } /* namespace xplcommon */