Move gql to Language.GraphQL.TH

10 files changed, 95 insertions, 19 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2cd95ca..786efde 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,11 @@ The format is based on
 and this project adheres to
 [Haskell Package Versioning Policy](https://pvp.haskell.org/).
 
+## [Unreleased]
+### Changed
+- `Language.GraphQL.Class.gql` is moved to `Language.GraphQL.TH` where it was
+  before in `graphql`.
+
 ## [1.0.5.0] - 2024-11-21
 ### Added
 - Add `ToGraphQL` and `FromGraphQL` instances for `Value` and `HashMap`.
@@ -41,6 +46,7 @@ and this project adheres to
 - JSON serialization.
 - Test helpers.
 
+[Unreleased]: https://git.caraus.tech/OSS/graphql-spice/compare/v1.0.5.0...master
 [1.0.5.0]: https://git.caraus.tech/OSS/graphql-spice/compare/v1.0.4.0...v1.0.5.0
 [1.0.4.0]: https://git.caraus.tech/OSS/graphql-spice/compare/v1.0.3.0...v1.0.4.0
 [1.0.3.0]: https://git.caraus.tech/OSS/graphql-spice/compare/v1.0.2.0...v1.0.3.0
diff --git a/graphql-spice.cabal b/graphql-spice.cabal
index 52caf30..750b38c 100644
--- a/graphql-spice.cabal
+++ b/graphql-spice.cabal
@@ -27,6 +27,7 @@ library
       Language.GraphQL.Class
       Language.GraphQL.JSON
       Language.GraphQL.Resolver
+      Language.GraphQL.TH
       Test.Hspec.GraphQL
     other-modules:
     hs-source-dirs:   src
@@ -38,7 +39,7 @@ library
       containers >= 0.6 && < 0.8,
       exceptions ^>= 0.10.4,
       hspec-expectations >= 0.8.2 && < 0.9,
-      graphql >= 1.3.0 && < 1.5.0,
+      graphql >= 1.3.0 && < 1.6.0,
       megaparsec >= 9.0 && < 10,
       scientific ^>= 0.3.7,
       template-haskell >= 2.16 && < 3,
@@ -58,6 +59,7 @@ test-suite graphql-test
     Language.GraphQL.DirectiveSpec
     Language.GraphQL.FragmentSpec
     Language.GraphQL.RootOperationSpec
+    Language.GraphQL.THSpec
   hs-source-dirs:
     tests
   ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall
diff --git a/src/Language/GraphQL/Class.hs b/src/Language/GraphQL/Class.hs
index 6e8b080..67ae695 100644
--- a/src/Language/GraphQL/Class.hs
+++ b/src/Language/GraphQL/Class.hs
@@ -485,6 +485,7 @@ stripIndentation code = reverse
 
 -- | Removes leading and trailing newlines. Indentation of the first line is
 -- removed from each line of the string.
+{-# DEPRECATED gql "Use Language.GraphQL.TH.gql instead" #-}
 gql :: QuasiQuoter
 gql = QuasiQuoter
     { quoteExp = pure . LitE . StringL . stripIndentation
diff --git a/src/Language/GraphQL/TH.hs b/src/Language/GraphQL/TH.hs
new file mode 100644
index 0000000..6e20586
--- /dev/null
+++ b/src/Language/GraphQL/TH.hs
@@ -0,0 +1,49 @@
+{- This Source Code Form is subject to the terms of the Mozilla Public License,
+   v. 2.0. If a copy of the MPL was not distributed with this file, You can
+   obtain one at https://mozilla.org/MPL/2.0/. -}
+
+module Language.GraphQL.TH
+    ( gql
+    ) where
+
+import Language.Haskell.TH
+    ( Exp(..)
+    , Lit(..)
+    )
+import Language.Haskell.TH.Quote (QuasiQuoter(..))
+
+stripIndentation :: String -> String
+stripIndentation code = reverse
+    $ dropWhile isLineBreak
+    $ reverse
+    $ unlines
+    $ indent spaces <$> lines' withoutLeadingNewlines
+  where
+    indent 0 xs = xs
+    indent count (' ' : xs) = indent (count - 1) xs
+    indent _ xs = xs
+    withoutLeadingNewlines = dropWhile isLineBreak code
+    spaces = length $ takeWhile (== ' ') withoutLeadingNewlines
+    lines' "" = []
+    lines' string =
+        let (line, rest) = break isLineBreak string
+            reminder =
+                case rest of
+                    [] -> []
+                    '\r' : '\n' : strippedString -> lines' strippedString
+                    _ : strippedString -> lines' strippedString
+         in line : reminder
+    isLineBreak = flip any ['\n', '\r'] . (==)
+
+-- | Removes leading and trailing newlines. Indentation of the first line is
+-- removed from each line of the string.
+gql :: QuasiQuoter
+gql = QuasiQuoter
+    { quoteExp = pure . LitE . StringL . stripIndentation
+    , quotePat = const
+        $ fail "Illegal gql QuasiQuote (allowed as expression only, used as a pattern)"
+    , quoteType = const
+        $ fail "Illegal gql QuasiQuote (allowed as expression only, used as a type)"
+    , quoteDec = const
+        $ fail "Illegal gql QuasiQuote (allowed as expression only, used as a declaration)"
+    }
diff --git a/tests/Language/GraphQL/ClassSpec.hs b/tests/Language/GraphQL/ClassSpec.hs
index 758b913..7744f10 100644
--- a/tests/Language/GraphQL/ClassSpec.hs
+++ b/tests/Language/GraphQL/ClassSpec.hs
@@ -5,6 +5,7 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE QuasiQuotes #-}
 {-# LANGUAGE TemplateHaskell #-}
+
 module Language.GraphQL.ClassSpec
     ( spec
     ) where
@@ -18,7 +19,6 @@ import Language.GraphQL.Class
     , ToGraphQL(..)
     , deriveFromGraphQL
     , deriveToGraphQL
-    , gql
     )
 import Test.Hspec (Spec, describe, it, shouldBe)
 import qualified Data.HashMap.Strict as HashMap
@@ -161,14 +161,3 @@ spec = do
             let given = Type.Enum "TWO_FIELD_ENUM_2"
                 expected = TWO_FIELD_ENUM_2
              in fromGraphQL given `shouldBe` Just expected
-
-    describe "gql" $
-        it "replaces CRNL with NL" $
-            let expected :: Text
-                expected = "line1\nline2\nline3"
-                actual = [gql|

-                  line1

-                  line2

-                  line3

-                |]
-             in actual `shouldBe` expected
diff --git a/tests/Language/GraphQL/CoerceSpec.hs b/tests/Language/GraphQL/CoerceSpec.hs
index 8bf11f1..86e1faf 100644
--- a/tests/Language/GraphQL/CoerceSpec.hs
+++ b/tests/Language/GraphQL/CoerceSpec.hs
@@ -3,6 +3,7 @@
    obtain one at https://mozilla.org/MPL/2.0/. -}
 
 {-# LANGUAGE OverloadedStrings #-}
+
 module Language.GraphQL.CoerceSpec
     ( spec
     ) where
diff --git a/tests/Language/GraphQL/DirectiveSpec.hs b/tests/Language/GraphQL/DirectiveSpec.hs
index fd429a6..030fc79 100644
--- a/tests/Language/GraphQL/DirectiveSpec.hs
+++ b/tests/Language/GraphQL/DirectiveSpec.hs
@@ -14,11 +14,11 @@ import Language.GraphQL.AST.Document (Name)
 import Data.HashMap.Strict (HashMap)
 import qualified Data.HashMap.Strict as HashMap
 import qualified Language.GraphQL as GraphQL
-import Language.GraphQL.TH
+import "graphql-spice" Language.GraphQL.TH
 import Language.GraphQL.Type
 import qualified Language.GraphQL.Type.Out as Out
 import Test.Hspec (Spec, describe, it)
-import "graphql-spice" Test.Hspec.GraphQL
+import Test.Hspec.GraphQL
 
 experimentalResolver :: Schema IO
 experimentalResolver = schema queryType Nothing Nothing mempty
diff --git a/tests/Language/GraphQL/FragmentSpec.hs b/tests/Language/GraphQL/FragmentSpec.hs
index a003f4c..18eb643 100644
--- a/tests/Language/GraphQL/FragmentSpec.hs
+++ b/tests/Language/GraphQL/FragmentSpec.hs
@@ -17,10 +17,10 @@ import Data.HashMap.Strict (HashMap)
 import Language.GraphQL.Type
 import Language.GraphQL.Error
 import qualified Language.GraphQL.Type.Out as Out
-import Language.GraphQL.TH
+import "graphql-spice" Language.GraphQL.TH
 import qualified Language.GraphQL as GraphQL
 import Test.Hspec (Spec, describe, it)
-import "graphql-spice" Test.Hspec.GraphQL
+import Test.Hspec.GraphQL
 
 size :: (Text, Value)
 size = ("size", String "L")
diff --git a/tests/Language/GraphQL/RootOperationSpec.hs b/tests/Language/GraphQL/RootOperationSpec.hs
index e7fbcd7..8508c42 100644
--- a/tests/Language/GraphQL/RootOperationSpec.hs
+++ b/tests/Language/GraphQL/RootOperationSpec.hs
@@ -15,10 +15,10 @@ import qualified Data.HashMap.Strict as HashMap
 import Language.GraphQL
 import Language.GraphQL.AST (Name)
 import Test.Hspec (Spec, describe, it)
-import Language.GraphQL.TH
+import "graphql-spice" Language.GraphQL.TH
 import Language.GraphQL.Type
 import qualified Language.GraphQL.Type.Out as Out
-import "graphql-spice" Test.Hspec.GraphQL
+import Test.Hspec.GraphQL
 
 hatType :: Out.ObjectType IO
 hatType = Out.ObjectType "Hat" Nothing []
diff --git a/tests/Language/GraphQL/THSpec.hs b/tests/Language/GraphQL/THSpec.hs
new file mode 100644
index 0000000..ffa6db6
--- /dev/null
+++ b/tests/Language/GraphQL/THSpec.hs
@@ -0,0 +1,28 @@
+{- This Source Code Form is subject to the terms of the Mozilla Public License,
+   v. 2.0. If a copy of the MPL was not distributed with this file, You can
+   obtain one at https://mozilla.org/MPL/2.0/. -}
+
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE PackageImports #-}
+
+module Language.GraphQL.THSpec
+    ( spec
+    ) where
+
+import Data.Text (Text)
+import "graphql-spice" Language.GraphQL.TH (gql)
+import Test.Hspec (Spec, describe, it, shouldBe)
+
+spec :: Spec
+spec = do
+    describe "gql" $
+        it "replaces CRNL with NL" $
+            let expected :: Text
+                expected = "line1\nline2\nline3"
+                actual = [gql|

+                  line1

+                  line2

+                  line3

+                |]
+             in actual `shouldBe` expected