Several TH/quasiquote changes

[ghc-hetmet.git] / compiler / hsSyn / HsTypes.lhs

diff --git a/compiler/hsSyn/HsTypes.lhs b/compiler/hsSyn/HsTypes.lhs
index 4e6e5ab..4417751 100644 (file)
--- a/compiler/hsSyn/HsTypes.lhs
+++ b/compiler/hsSyn/HsTypes.lhs
@@ -12,6 +12,7 @@ module HsTypes (
        HsExplicitForAll(..),
        HsContext, LHsContext,
        HsPred(..), LHsPred,
+       HsQuasiQuote(..),
 
        LBangType, BangType, HsBang(..), 
         getBangType, getBangStrictness, 
@@ -61,6 +62,28 @@ placeHolderType  = panic "Evaluated the place holder for a PostTcType"
 
 %************************************************************************
 %*                                                                     *
+       Quasi quotes; used in types and elsewhere
+%*                                                                     *
+%************************************************************************
+
+\begin{code}
+data HsQuasiQuote id = HsQuasiQuote 
+                          id           -- The quasi-quoter
+                          SrcSpan      -- The span of the enclosed string
+                          FastString   -- The enclosed string
+
+instance OutputableBndr id => Outputable (HsQuasiQuote id) where
+    ppr = ppr_qq
+
+ppr_qq :: OutputableBndr id => HsQuasiQuote id -> SDoc
+ppr_qq (HsQuasiQuote quoter _ quote) =
+    char '[' <> ppr quoter <> ptext (sLit "|") <>
+    ppr quote <> ptext (sLit "|]")
+\end{code}
+
+
+%************************************************************************
+%*                                                                     *
 \subsection{Bang annotations}
 %*                                                                     *
 %************************************************************************
@@ -157,6 +180,7 @@ data HsType name
                        Kind            -- A type with a kind signature
 
   | HsSpliceTy         (HsSplice name)
+  | HsQuasiQuoteTy     (HsQuasiQuote name)
 
   | HsDocTy             (LHsType name) LHsDocString -- A documented type
 
@@ -374,6 +398,7 @@ ppr_mono_ty ctxt_prec (HsForAllTy exp tvs ctxt ty)
     sep [pprHsForAll exp tvs ctxt, ppr_mono_lty pREC_TOP ty]
 
 ppr_mono_ty _    (HsBangTy b ty)     = ppr b <> ppr ty
+ppr_mono_ty _    (HsQuasiQuoteTy qq) = ppr qq
 ppr_mono_ty _    (HsRecTy flds)      = pprConDeclFields flds
 ppr_mono_ty _    (HsTyVar name)      = ppr name
 ppr_mono_ty prec (HsFunTy ty1 ty2)   = ppr_fun_ty prec ty1 ty2