Update examples

testsuite/makewith/io/Makefile

@@ -0,0 +1,4 @@
+TEST=makewith/io
+
+TOP=../../..
+include ../../build.mk

testsuite/makewith/io/README

@@ -0,0 +1,2 @@
+An example using IO monad fields in the .conf file.
+

testsuite/makewith/io/TestIO.conf.in

@@ -0,0 +1,22 @@
+{-# OPTIONS -cpp #-}
+--
+-- Copyright (c) 2004 Don Stewart - http://www.cse.unsw.edu.au/~dons
+-- LGPL version 2.1 or later (see http://www.gnu.org/copyleft/lesser.html)
+--
+
+import System.IO
+import System.Process
+
+resource = testio { field = date }
+
+--
+-- call a shell command , returning it's output
+--
+date :: IO String
+date = do
+#if !defined(CYGWIN) || !defined(__MINGW32__)
+          (_,out,_,_) <- catch (runInteractiveCommand "/bin/date") (\_->error "popen failed")
+#else
+          (_,out,_,_) <- catch (runInteractiveCommand "@PREFIX@/../../bin/date") (\_->error "popen failed")
+#endif
+          hGetLine out

testsuite/makewith/io/TestIO.stub

@@ -0,0 +1,10 @@
+
+module TestIO ( resource, resource_dyn )  where
+
+import API
+import Data.Dynamic
+
+resource = testio
+
+resource_dyn :: Dynamic
+resource_dyn = toDyn resource

testsuite/makewith/io/api/API.hs

@@ -0,0 +1,16 @@
+{-# OPTIONS -fglasgow-exts #-}
+
+module API where
+
+import Data.Dynamic
+
+data TestIO = TestIO { 
+                field :: IO String 
+        }
+   deriving (Typeable, Show)
+
+instance Show (IO String) where
+    show _ = "<<io action>>"
+
+testio :: TestIO
+testio = TestIO { field = return "default value" }

testsuite/makewith/io/prog/Main.hs

@@ -0,0 +1,21 @@
+
+import System.Plugins
+import API
+
+conf    = "../TestIO.conf"
+stub    = "../TestIO.stub"
+apipath = "../api"
+
+main = do
+        status <- makeWith conf stub ["-i"++apipath]
+        o <- case status of
+                MakeFailure e   -> mapM_ putStrLn e >> error "failed"
+                MakeSuccess _ o -> return o
+        m_v   <- load o [apipath] [] "resource"
+        v <- case m_v of
+            LoadSuccess _ v -> return v
+            _               -> error "load failed"
+        s <- field v
+
+        makeCleaner o
+        if null s then print False else print True

testsuite/makewith/io/prog/expected

@@ -0,0 +1,6 @@
+merge failed:
+
+parse error in ../TestIO.conf
+line: 17, col: 1
+
+a.out: failed