# HG changeset patch
# User Ludovic Chabant <ludovic@chabant.com>
# Date 1509467315 25200
# Node ID 74f4bde40fd043f76b75f141441fdb01f102aa85
# Parent  e7ca3c577305b1626efb08db59a91bff6546f6a2
data: Optimize page data so cheapest accessors are tried first.

diff -r e7ca3c577305 -r 74f4bde40fd0 piecrust/data/builder.py
--- a/piecrust/data/builder.py	Mon Oct 30 19:23:10 2017 -0700
+++ b/piecrust/data/builder.py	Tue Oct 31 09:28:35 2017 -0700
@@ -64,7 +64,11 @@
 
     site_data = app.config.getAll()
     providers_data = DataProvidersData(page)
-    data = MergedMapping([data, providers_data, site_data])
+
+    # Put the site data first so that `MergedMapping` doesn't load stuff
+    # for nothing just to find a value that was in the YAML config all
+    # along.
+    data = MergedMapping([site_data, data, providers_data])
 
     # Do this at the end because we want all the data to be ready to be
     # displayed in the debugger window.