Redid the way temporaries are handled in filtering

1 files changed, 124 insertions, 0 deletions

diff --git a/src/temps.cc b/src/temps.cc
new file mode 100644
index 00000000..a9ecc2a1
--- /dev/null
+++ b/src/temps.cc
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2003-2009, John Wiegley.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of New Artisans LLC nor the names of its
+ *   contributors may be used to endorse or promote products derived from
+ *   this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <system.hh>
+
+#include "temps.h"
+
+namespace ledger {
+
+temporaries_t::~temporaries_t()
+{
+  if (post_temps) {
+    foreach (post_t& post, *post_temps) {
+      if (! post.xact->has_flags(ITEM_TEMP))
+	post.xact->remove_post(&post);
+
+      if (! post.account->has_flags(ACCOUNT_TEMP))
+	post.account->remove_post(&post);
+    }
+  }
+}
+
+xact_t& temporaries_t::copy_xact(xact_t& origin)
+{
+  if (! xact_temps)
+    xact_temps = std::list<xact_t>();
+
+  xact_temps->push_back(origin);
+  xact_t& temp(xact_temps->back());
+
+  temp.add_flags(ITEM_TEMP);
+  return temp;
+}
+
+xact_t& temporaries_t::create_xact()
+{
+  if (! xact_temps)
+    xact_temps = std::list<xact_t>();
+
+  xact_temps->push_back(xact_t());
+  xact_t& temp(xact_temps->back());
+
+  temp.add_flags(ITEM_TEMP);
+  return temp;
+}
+
+post_t& temporaries_t::copy_post(post_t& origin, xact_t& xact,
+				 account_t * account)
+{
+  if (! post_temps)
+    post_temps = std::list<post_t>();
+
+  post_temps->push_back(origin);
+  post_t& temp(post_temps->back());
+
+  if (account)
+    temp.account = account;
+  temp.add_flags(ITEM_TEMP);
+
+  temp.account->add_post(&temp);
+  xact.add_post(&temp);
+
+  return temp;
+}
+
+post_t& temporaries_t::create_post(xact_t& xact, account_t * account)
+{
+  if (! post_temps)
+    post_temps = std::list<post_t>();
+
+  post_temps->push_back(post_t(account));
+  post_t& temp(post_temps->back());
+
+  temp.account = account;
+  temp.add_flags(ITEM_TEMP);
+
+  temp.account->add_post(&temp);
+  xact.add_post(&temp);
+
+  return temp;
+}
+
+account_t& temporaries_t::create_account(const string& name,
+					 account_t *   parent)
+{
+  if (! acct_temps)
+    acct_temps = std::list<account_t>();
+
+  acct_temps->push_back(account_t(parent, name));
+  account_t& temp(acct_temps->back());
+
+  temp.add_flags(ACCOUNT_TEMP);
+  return temp;
+}
+
+} // namespace ledger