Import hs-plugins cvs

examples/make/makeall001/A.hs

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+module A where
+
+a = "a"

examples/make/makeall001/B.hs

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+module B where
+
+b = "b"

examples/make/makeall001/C.hs

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+module C where
+
+c = "c"

examples/make/makeall001/Makefile

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+TEST=   make/makeall001
+TOP=../../..
+include ../../build.mk

examples/make/makeall001/Tiny.hs

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+module Tiny ( resource )  where
+
+import API
+
+import A
+import B
+import C
+
+resource = tiny { 
+
+    field = a ++ b ++ c
+    
+}

examples/make/makeall001/api/API.hs

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+{-# OPTIONS -fglasgow-exts #-}
+-- ^ needed to derive Typeable
+
+module API where
+
+import Data.Dynamic
+
+data Tiny = Tiny { field :: String }
+   deriving (Typeable, Show)
+
+tiny :: Tiny
+tiny = Tiny { field = "default value" }
+

examples/make/makeall001/prog/Main.hs

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+
+-- little more complex. use the path to the obj file we get back from
+-- 'make'. load() uses this to find the .hi file
+
+import Plugins
+import API
+
+main = do
+        status  <- makeAll "../Tiny.hs" ["-i../api"]
+        o <- case status of
+                MakeSuccess _ o -> return o
+                MakeFailure e -> mapM_ putStrLn e >> error "failed"
+        m_v   <- load o [".."] [] "resource"
+        v <- case m_v of
+            LoadSuccess _ v -> return v
+            _               -> error "load failed"
+        putStrLn $ field v 
+

examples/make/makeall001/prog/expected

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+abc

examples/make/null/Makefile

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+TEST=   make/null
+
+TOP=../../..
+include ../../build.mk

examples/make/null/Null.hs

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+module Null ( resource, resource_dyn )  where
+
+import API
+import Data.Dynamic
+import Prelude hiding (null)
+
+resource = null
+
+-- ! this has to be special: it can't be overridden by the user.
+resource_dyn :: Dynamic
+resource_dyn = toDyn resource

examples/make/null/api/API.hs

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+{-# OPTIONS -fglasgow-exts #-}
+
+module API where
+
+import Data.Dynamic
+
+data Null = Null { a, b :: Int }
+   deriving (Typeable, Show)
+
+null :: Null
+null = Null { a = 42 , b = 1 }
+

examples/make/null/prog/Main.hs

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+
+-- an example where we want to compile and load a file
+
+import Plugins
+import API
+
+main = do 
+    make "../Null.hs" ["-i../api"]
+    m_v  <- load "../Null.o" ["../api"] [] "resource"
+    v <- case m_v of
+        LoadSuccess _ v -> return v
+        _               -> error "load failed"
+    putStrLn ( show (a v) )

examples/make/null/prog/expected

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+42

examples/make/o/Makefile

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+TEST=make/o
+TOP =../../..
+include ../../build.mk

examples/make/o/Plugin.hs

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+module Plugin ( resource )  where
+
+import API
+
+resource = plugin { 
+    field = "hello out there"
+}

examples/make/o/api/API.hs

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+module API where
+
+data Interface = Interface {
+       field :: String 
+}
+
+plugin :: Interface
+plugin = Interface { field = undefined }

examples/make/o/prog/Main.hs

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+import Plugins
+import API
+
+import System.Directory
+
+-- note: the name of the original *source* module is used to find
+-- symbols in the *object* file. load works out what the source file
+-- name was by looking at the object file name, i.e. it assumes they
+-- have the same name. so, if you are going to store objects in a
+-- tmpdir, you should make a tmp directory, and store them inside that,
+-- rather than mkstemp'ing the name of the object file yourself.
+--
+-- this should go away once we can read .hi files.
+
+main = do
+        make "../Plugin.hs" [ "-i../api", "-o", "/tmp/Plugin.o" ]
+        m_v   <- load "/tmp/Plugin.o" ["../api"] [] "resource"
+        v <- case m_v of
+            LoadSuccess _ v -> return v
+            _               -> error "load failed"
+        putStrLn $ field v 
+
+        mapM_ removeFile [ "/tmp/Plugin.o" , "/tmp/Plugin.hi" ]

examples/make/o/prog/expected

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+hello out there

examples/make/odir/Makefile

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+TEST=   make/odir
+TOP=../../..
+include ../../build.mk

examples/make/odir/Plugin.hs

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+module Plugin ( resource )  where
+
+import API
+
+resource = plugin { 
+    field = "hello out there"
+}

examples/make/odir/api/API.hs

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+module API where
+
+data Interface = Interface {
+       field :: String 
+}
+
+plugin :: Interface
+plugin = Interface { field = undefined }

examples/make/odir/prog/Main.hs

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+import Plugins
+import API
+import System.Directory
+
+main = do
+        status <- make "../Plugin.hs" [ "-i../api", "-odir", "/tmp" ]
+        o <- case status of
+                MakeSuccess _ o -> return o
+                MakeFailure e -> mapM_ putStrLn e >> error "didn't compile"
+        m_v     <- load o ["../api"] [] "resource"
+        v <- case m_v of
+            LoadSuccess _ v -> return v
+            _               -> error "load failed"
+        putStrLn $ field v 
+        mapM_ removeFile ["/tmp/Plugin.hi", "/tmp/Plugin.o" ]
+

examples/make/odir/prog/expected

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+hello out there

examples/make/remake001/Bar.hs

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+module Bar where
+
+bar = undefined

examples/make/remake001/Foo.hs

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+module Foo where
+
+foo = undefined

examples/make/remake001/Main.hs

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+--
+-- expected output:
+-- $ ./a.out 
+-- True
+-- False
+-- True
+-- False
+--
+
+import Plugins
+import System.Directory
+   
+main = do
+        status <- make "Foo.hs" [] -- should make
+        print status
+
+        status <- make "Foo.hs" [] -- shouldn't make
+        print status
+   
+        status <- merge "Foo.hs" "Bar.hs"
+        case status of
+                MergeFailure e    -> error $ show e
+                MergeSuccess _ _ fp -> do {
+
+        ;status <- make fp []       -- should make
+        ;() <- case status of 
+                MakeSuccess c _ -> print c
+                MakeFailure e   -> error $ show e
+
+        ;status <- make fp []       -- shouldn't make
+        ;case status of 
+                MakeSuccess c _ -> print c
+                MakeFailure e   -> error $ show e
+        ;removeFile "Foo.o"
+        }
+

examples/make/remake001/Makefile

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+TEST=   merge/remake001
+
+TOP=../../..
+include ../../eval.mk

examples/make/remake001/expected

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+MakeSuccess ReComp "Foo.o"
+MakeSuccess NotReq "Foo.o"
+ReComp
+NotReq

examples/make/remake001_should_fail/Bar.hs

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+module Bar where
+
+bar = undef {- error -}

examples/make/remake001_should_fail/Foo.hs

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+module Foo where
+
+foo = undefined

examples/make/remake001_should_fail/Main.hs

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+
+import Plugins
+
+import System.Directory
+   
+main = do
+        status <- make "Foo.hs" [] -- should make
+        print status
+
+        status <- make "Foo.hs" [] -- shouldn't make
+        print status
+   
+        status  <- merge "Foo.hs" "Bar.hs"
+        case status of
+                MergeFailure e    -> error $ show e
+                MergeSuccess _ _ fp -> do {
+
+        ;status <- make fp []       -- should make
+        ;() <- case status of 
+                MakeSuccess c _ -> print c
+                MakeFailure _   -> print "make failure"
+
+        ;status <- make fp []       -- shouldn't make
+        ;case status of 
+                MakeSuccess c _ -> print c
+                MakeFailure _   -> print "make failure"
+
+        ;removeFile "Foo.o" -- make test deterministic
+        }
+
+

examples/make/remake001_should_fail/Makefile

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+TEST=   make/remake001_should_fail
+
+TOP=../../..
+include ../../eval.mk

examples/make/remake001_should_fail/expected

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+MakeSuccess ReComp "Foo.o"
+MakeSuccess NotReq "Foo.o"
+"make failure"
+"make failure"

examples/make/simple/Makefile

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+TEST=   make/simple
+TOP=../../..
+include ../../build.mk

examples/make/simple/Tiny.hs

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+module Tiny ( resource, resource_dyn )  where
+
+import API
+import Data.Dynamic
+
+resource = tiny { 
+
+    field = "hello strange world"
+    
+}
+
+resource_dyn :: Dynamic
+resource_dyn = toDyn resource
+

examples/make/simple/api/API.hs

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+{-# OPTIONS -fglasgow-exts #-}
+-- ^ needed to derive Typeable
+
+module API where
+
+import Data.Dynamic
+
+data Tiny = Tiny { field :: String }
+   deriving (Typeable, Show)
+
+tiny :: Tiny
+tiny = Tiny { field = "default value" }
+

examples/make/simple/prog/Main.hs

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+
+-- little more complex. use the path to the obj file we get back from
+-- 'make'. load() uses this to find the .hi file
+
+import Plugins
+import API
+
+main = do
+        status  <- make "../Tiny.hs" ["-i../api"]
+        o <- case status of
+                MakeSuccess _ o -> return o
+                MakeFailure e   -> mapM_ putStrLn e >> error "failed"
+
+        m_v   <- load o ["../api"] [] "resource"
+        v <- case m_v of
+            LoadSuccess _ v -> return v
+            _               -> error "load failed"
+        putStrLn $ field v 
+

examples/make/simple/prog/expected

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+hello strange world