Merge pull request #11 from phadej/bounds

Bounds

.travis.yml

@@ -7,7 +7,9 @@ env:
     - GHCVER=7.10.3 CABALVER=1.22
     - GHCVER=8.0.2 CABALVER=1.24
     - GHCVER=8.2.2 CABALVER=2.0
-    - GHCVER=8.4.1 CABALVER=2.2
+    - GHCVER=8.4.4 CABALVER=2.2
+    - GHCVER=8.6.5 CABALVER=2.4
+    - GHCVER=8.8.1 CABALVER=3.0
     - GHCVER=head CABALVER=head
 
 matrix:

src/Graphics/Svg/Core.hs

@@ -40,9 +40,7 @@ import           Data.ByteString.Lazy (ByteString)
 import           Data.Hashable (Hashable(..))
 import           Data.HashMap.Strict (HashMap)
 import qualified Data.HashMap.Strict as M
-#if !MIN_VERSION_base(4,8,0)
 import           Data.Monoid (Monoid(..))
-#endif
 import           Data.Semigroup (Semigroup(..))
 import           Data.String
 import           Data.Text (Text)
@@ -65,10 +63,13 @@ newtype Element = Element (HashMap Text Text -> Builder)
 instance Show Element where
   show e = LT.unpack . renderText $ e
 
-instance Semigroup Element where
+-- using qualified name we make the import not redundant,
+-- even when Semigroup or Monoid are in Prelude
+
+instance Data.Semigroup.Semigroup Element where
   Element e1 <> Element e2 = Element (e1 <> e2)
 
-instance Monoid Element where
+instance Data.Monoid.Monoid Element where
   mempty = Element mempty
 #if !(MIN_VERSION_base(4,11,0))
   mappend = (<>)

svg-builder.cabal

@@ -24,13 +24,13 @@ library
                        Graphics.Svg.Path,
                        Graphics.Svg.Elements,
                        Graphics.Svg.Attributes
-  build-depends:       base                  >= 4.5   && < 4.13,
+  build-depends:       base                  >= 4.5   && < 4.14,
                        blaze-builder         >= 0.4   && < 0.5,
                        bytestring            >= 0.10  && < 0.11,
-                       hashable              >= 1.1   && < 1.3,
+                       hashable              >= 1.1   && < 1.4,
                        text                  >= 0.11  && < 1.3,
                        unordered-containers  >= 0.2 && < 0.3
   if !impl(ghc >= 8.0)
-    build-depends:     semigroups            >= 0.16.1 && < 0.19
+    build-depends:     semigroups            >= 0.16.1 && < 0.20
   hs-source-dirs:      src
   default-language:    Haskell2010