hydra-0.14.0: src/main/haskell/Hydra/Sources/Json/Decoding.hs
module Hydra.Sources.Json.Decoding where
-- Standard imports for term-level sources outside of the kernel
import Hydra.Kernel
import Hydra.Sources.Libraries
import Hydra.Dsl.Meta.Lib.Strings as Strings
import Hydra.Dsl.Meta.Phantoms as Phantoms
import qualified Hydra.Dsl.Annotations as Annotations
import qualified Hydra.Dsl.Bootstrap as Bootstrap
import qualified Hydra.Dsl.LiteralTypes as LiteralTypes
import qualified Hydra.Dsl.Literals as Literals
import qualified Hydra.Dsl.Paths as Paths
import qualified Hydra.Dsl.Ast as Ast
import qualified Hydra.Dsl.Meta.Base as MetaBase
import qualified Hydra.Dsl.Coders as Coders
import qualified Hydra.Dsl.Util as Util
import qualified Hydra.Dsl.Meta.Core as Core
import qualified Hydra.Dsl.Meta.Graph as Graph
import qualified Hydra.Dsl.Json.Model as Json
import qualified Hydra.Dsl.Meta.Lib.Chars as Chars
import qualified Hydra.Dsl.Meta.Lib.Eithers as Eithers
import qualified Hydra.Dsl.Meta.Lib.Equality as Equality
import qualified Hydra.Dsl.Meta.Lib.Lists as Lists
import qualified Hydra.Dsl.Meta.Lib.Literals as Literals
import qualified Hydra.Dsl.Meta.Lib.Logic as Logic
import qualified Hydra.Dsl.Meta.Lib.Maps as Maps
import qualified Hydra.Dsl.Meta.Lib.Math as Math
import qualified Hydra.Dsl.Meta.Lib.Maybes as Maybes
import qualified Hydra.Dsl.Meta.Lib.Pairs as Pairs
import qualified Hydra.Dsl.Meta.Lib.Sets as Sets
import qualified Hydra.Dsl.Module as Module
import qualified Hydra.Dsl.Meta.Terms as MetaTerms
import qualified Hydra.Dsl.Meta.Testing as Testing
import qualified Hydra.Dsl.Topology as Topology
import qualified Hydra.Dsl.Meta.Types as MetaTypes
import qualified Hydra.Dsl.Typing as Typing
import qualified Hydra.Dsl.Util as Util
import qualified Hydra.Dsl.Meta.Variants as Variants
import qualified Hydra.Dsl.Prims as Prims
import qualified Hydra.Dsl.Meta.Tabular as Tabular
import qualified Hydra.Dsl.Terms as Terms
import qualified Hydra.Dsl.Tests as Tests
import qualified Hydra.Dsl.Types as Types
import qualified Hydra.Sources.Decode.Core as DecodeCore
import qualified Hydra.Sources.Encode.Core as EncodeCore
import qualified Hydra.Sources.Kernel.Terms.Adapt as Adapt
import qualified Hydra.Sources.Kernel.Terms.All as KernelTerms
import qualified Hydra.Sources.Kernel.Terms.Annotations as Annotations
import qualified Hydra.Sources.Kernel.Terms.Arity as Arity
import qualified Hydra.Sources.Kernel.Terms.Checking as Checking
import qualified Hydra.Sources.Kernel.Terms.Constants as Constants
import qualified Hydra.Sources.Kernel.Terms.Extract.Core as ExtractCore
import qualified Hydra.Sources.Kernel.Terms.Extract.Util as ExtractUtil
import qualified Hydra.Sources.Kernel.Terms.Formatting as Formatting
import qualified Hydra.Sources.Kernel.Terms.Inference as Inference
import qualified Hydra.Sources.Kernel.Terms.Languages as Languages
import qualified Hydra.Sources.Kernel.Terms.Lexical as Lexical
import qualified Hydra.Sources.Kernel.Terms.Literals as Literals
import qualified Hydra.Sources.Kernel.Terms.Names as Names
import qualified Hydra.Sources.Kernel.Terms.Reduction as Reduction
import qualified Hydra.Sources.Kernel.Terms.Reflect as Reflect
import qualified Hydra.Sources.Kernel.Terms.Rewriting as Rewriting
import qualified Hydra.Sources.Kernel.Terms.Schemas as Schemas
import qualified Hydra.Sources.Kernel.Terms.Serialization as Serialization
import qualified Hydra.Sources.Kernel.Terms.Show.Paths as ShowPaths
import qualified Hydra.Sources.Kernel.Terms.Show.Core as ShowCore
import qualified Hydra.Sources.Kernel.Terms.Show.Graph as ShowGraph
import qualified Hydra.Sources.Kernel.Terms.Show.Meta as ShowMeta
import qualified Hydra.Sources.Kernel.Terms.Show.Typing as ShowTyping
import qualified Hydra.Sources.Kernel.Terms.Sorting as Sorting
import qualified Hydra.Sources.Kernel.Terms.Substitution as Substitution
import qualified Hydra.Sources.Kernel.Terms.Templates as Templates
import qualified Hydra.Sources.Kernel.Terms.Unification as Unification
import qualified Hydra.Sources.Kernel.Types.All as KernelTypes
import Prelude hiding ((++))
import qualified Data.Int as I
import qualified Data.List as L
import qualified Data.Map as M
import qualified Data.Set as S
import qualified Data.Maybe as Y
-- Additional imports
import Hydra.Json.Model
import qualified Hydra.Sources.Json.Model as JsonModel
ns :: Namespace
ns = Namespace "hydra.ext.org.json.decoding"
module_ :: Module
module_ = Module ns elements
[]
KernelTypes.kernelTypesNamespaces $
Just "Decoding functions for JSON data"
where
elements = [
Phantoms.toTermDefinition decodeArray,
Phantoms.toTermDefinition decodeBoolean,
Phantoms.toTermDefinition decodeField,
-- Phantoms.toTermDefinition decodeNumber, TODO: restore
Phantoms.toTermDefinition decodeObject,
Phantoms.toTermDefinition decodeOptionalField,
Phantoms.toTermDefinition decodeString]
define :: String -> TTerm a -> TBinding a
define label = definitionInModule module_ ("decode" <> label)
decodeArray :: TBinding ((Value -> Either String a) -> Value -> Either String [a])
decodeArray = define "Array" $
doc "Decode a JSON array using a decoder for elements" $
lambda "decodeElem" $ match _Value (Just $ left (string "expected an array")) [
_Value_array>>: lambda "a" $ Eithers.mapList (var "decodeElem") $ var "a"]
decodeBoolean :: TBinding (Value -> Either String Bool)
decodeBoolean = define "Boolean" $
doc "Decode a JSON boolean value" $
match _Value (Just $ left (string "expected a boolean")) [
_Value_boolean>>: lambda "b" $ right $ var "b"]
decodeField :: TBinding ((Value -> Either String a) -> String -> (M.Map String Value) -> Either String a)
decodeField = define "Field" $
doc "Decode a required field from a JSON object" $
lambda "decodeValue" $ lambda "name" $ lambda "m" $
Eithers.bind
(decodeOptionalField @@ var "decodeValue" @@ var "name" @@ var "m")
(primitive _maybes_maybe
@@ (left $ Strings.cat2 (string "missing field: ") (var "name"))
@@ (lambda "f" $ right $ var "f"))
decodeNumber :: TBinding (Value -> Either String Double)
decodeNumber = define "Number" $
doc "Decode a JSON number value" $
match _Value (Just $ left (string "expected a number")) [
_Value_number>>: lambda "n" $ right $ var "n"]
decodeObject :: TBinding (Value -> Either String (M.Map String Value))
decodeObject = define "Object" $
doc "Decode a JSON object value" $
match _Value (Just $ left (string "expected an object")) [
_Value_object>>: lambda "o" $ right $ var "o"]
decodeOptionalField :: TBinding ((Value -> Either String a) -> String -> (M.Map String Value) -> Either String (Maybe a))
decodeOptionalField = define "OptionalField" $
doc "Decode an optional field from a JSON object" $
lambda "decodeValue" $ lambda "name" $ lambda "m" $
(primitive _maybes_maybe
@@ (right nothing)
@@ (lambda "v" (Eithers.map (lambda "x" (just $ var "x")) (var "decodeValue" @@ var "v"))))
@@ (Maps.lookup (var "name") (var "m"))
decodeString :: TBinding (Value -> Either String String)
decodeString = define "String" $
doc "Decode a JSON string value" $
match _Value (Just $ left (string "expected a string")) [
_Value_string>>: lambda "s" $ right $ var "s"]