import CmdLineOpts ( opt_D_dump_ds )
import HsSyn ( MonoBinds, RuleDecl(..), RuleBndr(..), HsExpr(..), HsBinds(..), MonoBinds(..) )
-import TcHsSyn ( TypecheckedMonoBinds, TypecheckedForeignDecl, TypecheckedRuleDecl )
+import TcHsSyn ( TypecheckedRuleDecl )
import TcModule ( TcResults(..) )
import CoreSyn
import Rules ( ProtoCoreRule(..), pprProtoCoreRule )
-import Subst ( substExpr, mkSubst )
+import Subst ( substExpr, mkSubst, mkInScopeSet )
import DsMonad
import DsExpr ( dsExpr )
import DsBinds ( dsMonoBinds, AutoScc(..) )
import DsForeign ( dsForeigns )
-import DsUtils
import DsExpr () -- Forces DsExpr to be compiled; DsBinds only
-- depends on DsExpr.hi-boot.
-import Module ( Module, moduleString )
-import Id ( Id )
-import Name ( isLocallyDefined )
+import Module ( Module )
import VarEnv
import VarSet
-import Bag ( isEmptyBag, unionBags )
+import Bag ( isEmptyBag )
import CmdLineOpts ( opt_SccProfilingOn )
import CoreLint ( beginPass, endPass )
import ErrUtils ( doIfSet, pprBagOfWarnings )
import Outputable
-import UniqSupply ( splitUniqSupply, UniqSupply )
+import UniqSupply ( UniqSupply )
\end{code}
%************************************************************************
dsProgram mod_name all_binds rules fo_decls
= dsMonoBinds auto_scc all_binds [] `thenDs` \ core_prs ->
- dsForeigns mod_name fo_decls `thenDs` \ (fi_binds, fe_binds, h_code, c_code) ->
+ dsForeigns mod_name fo_decls `thenDs` \ (fe_binders, foreign_binds, h_code, c_code) ->
let
- ds_binds = fi_binds ++ [Rec core_prs] ++ fe_binds
- fe_binders = bindersOfBinds fe_binds
+ ds_binds = [Rec (foreign_binds ++ core_prs)]
+ -- Notice that we put the whole lot in a big Rec, even the foreign binds
+ -- When compiling PrelFloat, which defines data Float = F# Float#
+ -- we want F# to be in scope in the foreign marshalling code!
+ -- You might think it doesn't matter, but the simplifier brings all top-level
+ -- things into the in-scope set before simplifying; so we get no unfolding for F#!
+
local_binders = mkVarSet (bindersOfBinds ds_binds)
in
mapDs (dsRule local_binders) rules `thenDs` \ rules' ->
(Rule name tpl_vars args core_rhs))
where
tpl_vars = sig_tvs ++ [var | RuleBndr var <- vars]
- all_vars = in_scope `unionVarSet` mkVarSet tpl_vars
+ all_vars = mkInScopeSet (in_scope `unionVarSet` mkVarSet tpl_vars)
ds_lhs all_vars lhs
= let