hydra-0.14.0: src/main/haskell/Hydra/Sources/Kernel/Terms/Templates.hs
module Hydra.Sources.Kernel.Terms.Templates where
-- Standard imports for kernel terms modules
import Hydra.Kernel hiding (graphToSchema, instantiateTemplate)
import Hydra.Sources.Libraries
import qualified Hydra.Dsl.Paths as Paths
import qualified Hydra.Dsl.Annotations as Annotations
import qualified Hydra.Dsl.Ast as Ast
import qualified Hydra.Dsl.Bootstrap as Bootstrap
import qualified Hydra.Dsl.Coders as Coders
import qualified Hydra.Dsl.Util as Util
import qualified Hydra.Dsl.Meta.Context as Ctx
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 Hydra.Dsl.Meta.Lib.Strings as Strings
import qualified Hydra.Dsl.Literals as Literals
import qualified Hydra.Dsl.LiteralTypes as LiteralTypes
import qualified Hydra.Dsl.Meta.Base as MetaBase
import qualified Hydra.Dsl.Meta.Terms as MetaTerms
import qualified Hydra.Dsl.Meta.Types as MetaTypes
import qualified Hydra.Dsl.Module as Module
import qualified Hydra.Dsl.Parsing as Parsing
import Hydra.Dsl.Meta.Phantoms as Phantoms
import qualified Hydra.Dsl.Prims as Prims
import qualified Hydra.Dsl.Meta.Tabular as Tabular
import qualified Hydra.Dsl.Meta.Testing as Testing
import qualified Hydra.Dsl.Terms as Terms
import qualified Hydra.Dsl.Tests as Tests
import qualified Hydra.Dsl.Topology as Topology
import qualified Hydra.Dsl.Types as Types
import qualified Hydra.Dsl.Typing as Typing
import qualified Hydra.Dsl.Errors as Error
import qualified Hydra.Dsl.Meta.Variants as Variants
import Hydra.Sources.Kernel.Types.All
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
import qualified Hydra.Sources.Decode.Core as DecodeCore
import qualified Hydra.Sources.Kernel.Terms.Constants as Constants
import qualified Hydra.Sources.Kernel.Terms.Show.Core as ShowCore
ns :: Namespace
ns = Namespace "hydra.templates"
module_ :: Module
module_ = Module ns elements
[Constants.ns, moduleNamespace DecodeCore.module_, ShowCore.ns]
kernelTypesNamespaces $
Just "A utility which instantiates a nonrecursive type with default values"
where
elements = [
toTermDefinition graphToSchema,
toTermDefinition instantiateTemplate]
define :: String -> TTerm a -> TBinding a
define = definitionInModule module_
graphToSchema :: TBinding (Context -> Graph -> [Binding] -> Either (InContext DecodingError) (M.Map Name Type))
graphToSchema = define "graphToSchema" $
doc "Decode a list of type-encoding bindings into a map of named types" $
"cx" ~> "graph" ~> "els" ~>
"toPair" <~ ("el" ~>
"name" <~ Core.bindingName (var "el") $
Eithers.bind (Ctx.withContext (var "cx") (decoderFor _Type @@ var "graph" @@ (Core.bindingTerm (var "el")))) (
"t" ~> right (pair (var "name") (var "t")))) $
Eithers.bind (Eithers.mapList (var "toPair") (var "els")) (
"pairs" ~> right (Maps.fromList (var "pairs")))
instantiateTemplate :: TBinding (Context -> Bool -> M.Map Name Type -> Name -> Type -> Either (InContext Error) Term)
instantiateTemplate = define "instantiateTemplate" $
doc ("Given a graph schema and a nonrecursive type, instantiate it with default values."
<> " If the minimal flag is set, the smallest possible term is produced; otherwise, exactly one subterm"
<> " is produced for constructors which do not otherwise require one, e.g. in lists and optionals."
<> " The name parameter provides the element name for nominal type construction.") $
"cx" ~> "minimal" ~> "schema" ~> "tname" ~> "t" ~>
"inst" <~ ("tn" ~> instantiateTemplate @@ var "cx" @@ var "minimal" @@ var "schema" @@ var "tn") $
"noPoly" <~ Ctx.failInContext (Error.errorOther $ Error.otherError (string "Polymorphic and function types are not currently supported")) (var "cx") $
"forFloat" <~ ("ft" ~> cases _FloatType (var "ft")
Nothing [
_FloatType_bigfloat>>: constant (Core.floatValueBigfloat (bigfloat 0.0)),
_FloatType_float32>>: constant (Core.floatValueFloat32 (float32 0.0)),
_FloatType_float64>>: constant (Core.floatValueFloat64 (float64 0.0))]) $
"forInteger" <~ ("it" ~> cases _IntegerType (var "it")
Nothing [
_IntegerType_bigint>>: constant (Core.integerValueBigint (bigint 0)),
_IntegerType_int8>>: constant (Core.integerValueInt8 (int8 0)),
_IntegerType_int16>>: constant (Core.integerValueInt16 (int16 0)),
_IntegerType_int32>>: constant (Core.integerValueInt32 (int32 0)),
_IntegerType_int64>>: constant (Core.integerValueInt64 (int64 0)),
_IntegerType_uint8>>: constant (Core.integerValueUint8 (uint8 0)),
_IntegerType_uint16>>: constant (Core.integerValueUint16 (uint16 0)),
_IntegerType_uint32>>: constant (Core.integerValueUint32 (uint32 0)),
_IntegerType_uint64>>: constant (Core.integerValueUint64 (uint64 0))]) $
"forLiteral" <~ ("lt" ~> cases _LiteralType (var "lt")
Nothing [
_LiteralType_binary>>: constant (Core.literalString (string "")),
_LiteralType_boolean>>: constant (Core.literalBoolean false),
_LiteralType_integer>>: "it" ~> Core.literalInteger (var "forInteger" @@ var "it"),
_LiteralType_float>>: "ft" ~> Core.literalFloat (var "forFloat" @@ var "ft"),
_LiteralType_string>>: constant (Core.literalString (string ""))]) $
cases _Type (var "t")
Nothing [
_Type_annotated>>: "at" ~> var "inst" @@ var "tname" @@ (Core.annotatedTypeBody (var "at")),
_Type_application>>: constant (var "noPoly"),
_Type_function>>: constant (var "noPoly"),
_Type_forall>>: constant (var "noPoly"),
_Type_list>>: "et" ~> Logic.ifElse (var "minimal")
(right (Core.termList (list ([] :: [TTerm Term]))))
(Eithers.bind (var "inst" @@ var "tname" @@ var "et") (
"e" ~> right (Core.termList (list [var "e"])))),
_Type_literal>>: "lt" ~> right (Core.termLiteral (var "forLiteral" @@ var "lt")),
_Type_map>>: "mt" ~>
"kt" <~ Core.mapTypeKeys (var "mt") $
"vt" <~ Core.mapTypeValues (var "mt") $
Logic.ifElse (var "minimal")
(right (Core.termMap Maps.empty))
(Eithers.bind (var "inst" @@ var "tname" @@ var "kt") (
"ke" ~>
Eithers.bind (var "inst" @@ var "tname" @@ var "vt") (
"ve" ~> right (Core.termMap (Maps.singleton (var "ke") (var "ve")))))),
_Type_maybe>>: "ot" ~> Logic.ifElse (var "minimal")
(right (Core.termMaybe nothing))
(Eithers.bind (var "inst" @@ var "tname" @@ var "ot") (
"e" ~> right (Core.termMaybe (just (var "e"))))),
_Type_record>>: "rt" ~>
"toField" <~ ("ft" ~>
Eithers.bind (var "inst" @@ var "tname" @@ (Core.fieldTypeType (var "ft"))) (
"e" ~> right (Core.field (Core.fieldTypeName (var "ft")) (var "e")))) $
Eithers.bind (Eithers.mapList (var "toField") (var "rt")) (
"dfields" ~> right (Core.termRecord (Core.record (var "tname") (var "dfields")))),
_Type_set>>: "et" ~> Logic.ifElse (var "minimal")
(right (Core.termSet Sets.empty))
(Eithers.bind (var "inst" @@ var "tname" @@ var "et") (
"e" ~> right (Core.termSet (Sets.fromList (list [var "e"]))))),
_Type_variable>>: "vname" ~>
Maybes.maybe
(Ctx.failInContext (Error.errorOther $ Error.otherError (Strings.cat2 (string "Type variable ") (Strings.cat2 (ShowCore.term @@ (Core.termVariable (var "vname"))) (string " not found in schema")))) (var "cx"))
(var "inst" @@ var "vname")
(Maps.lookup (var "vname") (var "schema")),
_Type_wrap>>: "wt" ~>
Eithers.bind (var "inst" @@ var "tname" @@ var "wt") (
"e" ~> right (Core.termWrap (Core.wrappedTerm (var "tname") (var "e"))))]