Changes between Version 14 and Version 15 of Commentary/Compiler/API

Timestamp:

10/02/06 05:31:00 (7 years ago)

Author:

simonmar

Comment:

--

Commentary/Compiler/API

@@ -14 +14 @@
 
  * You probably want to wrap the whole program in {{{defaultErrorHandler defaultDynFlags}}} to get error messages
- * Initialize the GHC top dir: {{{init}}}
  * Create a new session: {{{newSession}}}
+ * Set the flags: {{{getSessionDynFlags}}}, {{{setSessionDynFlags}}}.
  * Add some ''targets'': {{{setTargets}}}, {{{addTarget}}}, {{{guessTarget}}}
  * Perform [[ref(Dependency Analysis)]]: {{{depanal}}}
@@ -29 +29 @@
 
 main = defaultErrorHandler defaultDynFlags $ do
-  GHC.init (Just "/usr/local/lib/ghc-6.5")  -- or your build tree!
-  s <- newSession mode
+  s <- newSession mode (Just "/usr/local/lib/ghc-6.5")
   flags <- getSessionDynFlags s
   (flags, _) <- parseDynamicFlags flags []
   GHC.defaultCleanupHandler flags $ do
-    flags <- initPackages flags
-    setSessionDynFlags s flags
+    setSessionDynFlags s flags{ hscTarget=HscInterpreted }
     -- your code here
 }}}
+
+You must pass the path to {{{package.conf}}} as an argument to {{{newSession}}}.  
+
+The {{{hscTarget}}} field of {{{DynFlags}}} tells the compiler what kind of output to generate from compilation.  There is unfortunately some overlap between this and the {{{GhcMode}}} passed to {{{newSession}}}; we hope to clean this up in the future, but for now it's probably a good idea to make sure that these two settings are consisent.  That is, if {{{mode==Interactive}}}, then {{{hscTarget==Interpreted}}}, if {{{mode==JustTypecheck}}} then {{{hscTarget==HscNothing}}}.
 
 == Targets ==