\begin{code}
module Desugar ( deSugar, deSugarExpr ) where
-#include "HsVersions.h"
-
import DynFlags
import StaticFlags
import HscTypes
import DsExpr () -- Forces DsExpr to be compiled; DsBinds only
-- depends on DsExpr.hi-boot.
import Module
-import UniqFM
-import PackageConfig
import RdrName
import NameSet
import VarSet
import CoreLint
import CoreFVs
import ErrUtils
-import ListSetOps
import Outputable
import SrcLoc
import Maybes
import FastString
-import Util
import Coverage
-import IOEnv
+
import Data.IORef
\end{code}
tcg_type_env = type_env,
tcg_imports = imports,
tcg_exports = exports,
- tcg_dus = dus,
- tcg_inst_uses = dfun_uses_var,
- tcg_th_used = th_var,
tcg_keep = keep_var,
tcg_rdr_env = rdr_env,
tcg_fix_env = fix_env,
+ tcg_inst_env = inst_env,
tcg_fam_inst_env = fam_inst_env,
- tcg_deprecs = deprecs,
+ tcg_warns = warns,
tcg_binds = binds,
tcg_fords = fords,
tcg_rules = rules,
tcg_insts = insts,
- tcg_fam_insts = fam_insts })
+ tcg_fam_insts = fam_insts,
+ tcg_hpc = other_hpc_info })
= do { let dflags = hsc_dflags hsc_env
; showPass dflags "Desugar"
; let export_set = availsToNameSet exports
; let auto_scc = mkAutoScc mod export_set
; let target = hscTarget dflags
+ ; let hpcInfo = emptyHpcInfo other_hpc_info
; mb_res <- case target of
- HscNothing -> return (Just ([], [], NoStubs, noHpcInfo, emptyModBreaks))
+ HscNothing -> return (Just ([], [], NoStubs, hpcInfo, emptyModBreaks))
_ -> do (binds_cvr,ds_hpc_info, modBreaks)
- <- if opt_Hpc || target == HscInterpreted
- then addCoverageTicksToBinds dflags mod mod_loc binds
- else return (binds, noHpcInfo, emptyModBreaks)
+ <- if (opt_Hpc
+ || target == HscInterpreted)
+ && (not (isHsBoot hsc_src))
+ then addCoverageTicksToBinds dflags mod mod_loc (typeEnvTyCons type_env) binds
+ else return (binds, hpcInfo, emptyModBreaks)
initDs hsc_env mod rdr_env type_env $ do
{ core_prs <- dsTopLHsBinds auto_scc binds_cvr
; (ds_fords, foreign_prs) <- dsForeigns fords
; let all_prs = foreign_prs ++ core_prs
- local_bndrs = mkVarSet (map fst all_prs)
- ; ds_rules <- mappM (dsRule mod local_bndrs) rules
+ ; ds_rules <- mapM dsRule rules
; return (all_prs, catMaybes ds_rules, ds_fords, ds_hpc_info, modBreaks)
}
; case mb_res of {
; doIfSet (dopt Opt_D_dump_ds dflags)
(printDump (ppr_ds_rules ds_rules))
- ; dfun_uses <- readIORef dfun_uses_var -- What dfuns are used
- ; th_used <- readIORef th_var -- Whether TH is used
- ; let used_names = allUses dus `unionNameSets` dfun_uses
- pkgs | th_used = insertList thPackageId (imp_dep_pkgs imports)
- | otherwise = imp_dep_pkgs imports
-
- dep_mods = eltsUFM (delFromUFM (imp_dep_mods imports) (moduleName mod))
- -- M.hi-boot can be in the imp_dep_mods, but we must remove
- -- it before recording the modules on which this one depends!
- -- (We want to retain M.hi-boot in imp_dep_mods so that
- -- loadHiBootInterface can see if M's direct imports depend
- -- on M.hi-boot, and hence that we should do the hi-boot consistency
- -- check.)
-
- dir_imp_mods = imp_mods imports
-
- ; usages <- mkUsageInfo hsc_env dir_imp_mods dep_mods used_names
-
- ; let
- -- Modules don't compare lexicographically usually,
- -- but we want them to do so here.
- le_mod :: Module -> Module -> Bool
- le_mod m1 m2 = moduleNameFS (moduleName m1)
- <= moduleNameFS (moduleName m2)
- le_dep_mod :: (ModuleName, IsBootInterface) -> (ModuleName, IsBootInterface) -> Bool
- le_dep_mod (m1,_) (m2,_) = moduleNameFS m1 <= moduleNameFS m2
-
- deps = Deps { dep_mods = sortLe le_dep_mod dep_mods,
- dep_pkgs = sortLe (<=) pkgs,
- dep_orphs = sortLe le_mod (imp_orphs imports),
- dep_finsts = sortLe le_mod (imp_finsts imports) }
- -- sort to get into canonical order
-
- mod_guts = ModGuts {
+ ; used_names <- mkUsedNames tcg_env
+ ; deps <- mkDependencies tcg_env
+
+ ; let mod_guts = ModGuts {
mg_module = mod,
mg_boot = isHsBoot hsc_src,
mg_exports = exports,
mg_deps = deps,
- mg_usages = usages,
- mg_dir_imps = [m | (m,_,_) <- moduleEnvElts dir_imp_mods],
+ mg_used_names = used_names,
+ mg_dir_imps = imp_mods imports,
mg_rdr_env = rdr_env,
mg_fix_env = fix_env,
- mg_deprecs = deprecs,
+ mg_warns = warns,
mg_types = type_env,
mg_insts = insts,
mg_fam_insts = fam_insts,
+ mg_inst_env = inst_env,
mg_fam_inst_env = fam_inst_env,
mg_rules = ds_rules,
mg_binds = ds_binds,
mg_foreign = ds_fords,
mg_hpc_info = ds_hpc_info,
- mg_modBreaks = modBreaks }
+ mg_modBreaks = modBreaks,
+ mg_vect_info = noVectInfo
+ }
; return (Just mod_guts)
}}}
| not opt_SccProfilingOn -- No profiling
= NoSccs
| opt_AutoSccsOnAllToplevs -- Add auto-scc on all top-level things
- = AddSccs mod (\id -> True)
+ = AddSccs mod (\id -> not $ isDerivedOccName $ getOccName id)
+ -- See #1641. This is pretty yucky, but I can't see a better way
+ -- to identify compiler-generated Ids, and at least this should
+ -- catch them all.
| opt_AutoSccsOnExportedToplevs -- Only on exported things
= AddSccs mod (\id -> idName id `elemNameSet` exports)
| otherwise
= NoSccs
-
deSugarExpr :: HscEnv
-> Module -> GlobalRdrEnv -> TypeEnv
-> LHsExpr Id
-- it's just because the type checker is rather busy already and
-- I didn't want to pass in yet another mapping.
+addExportFlags :: HscTarget -> NameSet -> NameSet -> [(Id, t)] -> [CoreRule]
+ -> [(Id, t)]
addExportFlags target exports keep_alive prs rules
= [(add_export bndr, rhs) | (bndr,rhs) <- prs]
where
is_exported | target == HscInterpreted = isExternalName
| otherwise = (`elemNameSet` exports)
+ppr_ds_rules :: [CoreRule] -> SDoc
ppr_ds_rules [] = empty
ppr_ds_rules rules
= text "" $$ text "-------------- DESUGARED RULES -----------------" $$
%************************************************************************
\begin{code}
-dsRule :: Module -> IdSet -> LRuleDecl Id -> DsM (Maybe CoreRule)
-dsRule mod in_scope (L loc (HsRule name act vars lhs tv_lhs rhs fv_rhs))
+dsRule :: LRuleDecl Id -> DsM (Maybe CoreRule)
+dsRule (L loc (HsRule name act vars lhs _tv_lhs rhs _fv_rhs))
= putSrcSpanDs loc $
do { let bndrs = [var | RuleBndr (L _ var) <- vars]
; lhs' <- dsLExpr lhs
; return (Just rule)
} } }
where
- msg = hang (ptext SLIT("RULE left-hand side too complicated to desugar; ignored"))
+ msg = hang (ptext (sLit "RULE left-hand side too complicated to desugar; ignored"))
2 (ppr lhs)
\end{code}
projects / ghc-hetmet.git / blobdiff