From 8276b51f5692796bfdf75dd64f709e0de1c7caaf Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Thu, 31 Jul 2008 04:28:58 -0400
Subject: A new binary_cache_t object has been creating to manage saving and
 restoring a Ledger session from a cache file.  It doesn't work at all yet,
 though at least the major structures are in place now.

---
 value.cc | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

(limited to 'value.cc')

diff --git a/value.cc b/value.cc
index 6c257c00..272fe8d6 100644
--- a/value.cc
+++ b/value.cc
@@ -30,6 +30,7 @@
  */
 
 #include "value.h"
+#include "binary.h"
 
 namespace ledger {
 
@@ -1601,6 +1602,61 @@ void value_t::print(std::ostream& out, const bool relaxed) const
   }
 }
 
+void value_t::read(const char *& data)
+{
+  switch (static_cast<value_t::type_t>(binary::read_long<int>(data))) {
+  case BOOLEAN:
+    set_boolean(binary::read_bool(data));
+    break;
+  case INTEGER:
+    set_long(binary::read_long<unsigned long>(data));
+    break;
+  case DATETIME:
+    // jww (2008-04-22): I need to record and read a datetime_t directly
+    //set_datetime(read_long<unsigned long>(data));
+    break;
+  case AMOUNT: {
+    amount_t temp;
+    temp.read(data);
+    set_amount(temp);
+    break;
+  }
+
+  //case BALANCE:
+  //case BALANCE_PAIR:
+  default:
+    assert(false);
+    break;
+  }
+}
+
+void value_t::write(std::ostream& out) const
+{
+  binary::write_long(out, static_cast<int>(type()));
+
+  switch (type()) {
+  case BOOLEAN:
+    binary::write_bool(out, as_boolean());
+    break;
+  case INTEGER:
+    binary::write_long(out, as_long());
+    break;
+  case DATETIME:
+#if 0
+    binary::write_number(out, as_datetime());
+#endif
+    break;
+  case AMOUNT:
+    as_amount().write(out);
+    break;
+
+  //case BALANCE:
+  //case BALANCE_PAIR:
+  default:
+    throw new error("Cannot write a balance to the binary cache");
+  }
+}
+
 bool value_t::valid() const
 {
   switch (type()) {
-- 
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