hydra-0.13.0: src/main/haskell/Hydra/Sources/Haskell/Coder.hs
module Hydra.Sources.Haskell.Coder 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.Grammars as Grammars
import qualified Hydra.Dsl.LiteralTypes as LiteralTypes
import qualified Hydra.Dsl.Literals as Literals
import qualified Hydra.Dsl.Meta.Accessors as Accessors
import qualified Hydra.Dsl.Meta.Ast as Ast
import qualified Hydra.Dsl.Meta.Base as MetaBase
import qualified Hydra.Dsl.Meta.Coders as Coders
import qualified Hydra.Dsl.Meta.Compute as Compute
import qualified Hydra.Dsl.Meta.Core as Core
import qualified Hydra.Dsl.Meta.Grammar as Grammar
import qualified Hydra.Dsl.Meta.Graph as Graph
import qualified Hydra.Dsl.Meta.Json 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.Flows as Flows
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.Meta.Module as Module
import qualified Hydra.Dsl.Meta.Terms as MetaTerms
import qualified Hydra.Dsl.Meta.Testing as Testing
import qualified Hydra.Dsl.Meta.Topology as Topology
import qualified Hydra.Dsl.Meta.Types as MetaTypes
import qualified Hydra.Dsl.Meta.Typing as Typing
import qualified Hydra.Dsl.Meta.Util as Util
import qualified Hydra.Dsl.Meta.Variants as Variants
import qualified Hydra.Dsl.Prims as Prims
import qualified Hydra.Dsl.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.Literals as AdaptLiterals
import qualified Hydra.Sources.Kernel.Terms.Adapt.Modules as AdaptModules
import qualified Hydra.Sources.Kernel.Terms.Adapt.Simple as AdaptSimple
import qualified Hydra.Sources.Kernel.Terms.Adapt.Terms as AdaptTerms
import qualified Hydra.Sources.Kernel.Terms.Adapt.Utils as AdaptUtils
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.Grammars as Grammars
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.Monads as Monads
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.Accessors as ShowAccessors
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.Tarjan as Tarjan
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 qualified Hydra.Ext.Haskell.Ast as H
import qualified Hydra.Sources.Haskell.Language as HaskellLanguage
import qualified Hydra.Sources.Haskell.Ast as HaskellAst
import qualified Hydra.Sources.Haskell.Serde as HaskellSerde
import qualified Hydra.Sources.Haskell.Utils as HaskellUtils
type HaskellNamespaces = Namespaces H.ModuleName
haskellCoderDefinition :: String -> TTerm a -> TBinding a
haskellCoderDefinition = definitionInModule module_
module_ :: Module
module_ = Module ns elements
[HaskellSerde.ns, HaskellUtils.ns,
AdaptModules.ns, Rewriting.ns, Serialization.ns]
(HaskellAst.ns:KernelTypes.kernelTypesNamespaces) $
Just "Functions for encoding Hydra modules as Haskell modules"
where
ns = Namespace "hydra.ext.haskell.coder"
elements = [
toBinding includeTypeDefinitions,
toBinding useCoreImport,
toBinding keyHaskellVar,
toBinding adaptTypeToHaskellAndEncode,
toBinding constantForFieldName,
toBinding constantForTypeName,
toBinding constructModule,
toBinding encodeFunction,
toBinding encodeLiteral,
toBinding encodeTerm,
toBinding encodeType,
toBinding encodeTypeWithClassAssertions,
toBinding findOrdVariables,
toBinding getImplicitTypeClasses,
toBinding moduleToHaskellModule,
toBinding moduleToHaskell,
toBinding nameDecls,
toBinding toDataDeclaration,
-- toBinding toTypeDeclarations,
toBinding toTypeDeclarationsFrom,
toBinding typeDecl,
toBinding typeSchemeConstraintsToClassMap]
-- TODO: make these settings configurable
includeTypeDefinitions :: TBinding Bool
includeTypeDefinitions = haskellCoderDefinition "includeTypeDefinitions" $
doc "Whether to include type definitions in generated Haskell modules" $
false
useCoreImport :: TBinding Bool
useCoreImport = haskellCoderDefinition "useCoreImport" $
doc "Whether to use the Hydra core import in generated modules" $
true
keyHaskellVar :: TBinding Name
keyHaskellVar = haskellCoderDefinition "keyHaskellVar" $
doc "The key used to track Haskell variable depth in annotations" $
wrap _Name $ string "haskellVar"
adaptTypeToHaskellAndEncode :: TBinding (HaskellNamespaces -> Type -> Flow Graph H.Type)
adaptTypeToHaskellAndEncode = haskellCoderDefinition "adaptTypeToHaskellAndEncode" $
doc "Adapt a Hydra type to Haskell's type system and encode it" $
"namespaces" ~>
AdaptModules.adaptTypeToLanguageAndEncode @@ (HaskellLanguage.haskellLanguage) @@ (encodeType @@ var "namespaces")
constantForFieldName :: TBinding (Name -> Name -> String)
constantForFieldName = haskellCoderDefinition "constantForFieldName" $
doc "Generate a constant name for a field (e.g., '_TypeName_fieldName')" $
"tname" ~> "fname" ~>
Strings.cat $ list [
string "_",
Names.localNameOf @@ var "tname",
string "_",
Core.unName $ var "fname"]
constantForTypeName :: TBinding (Name -> String)
constantForTypeName = haskellCoderDefinition "constantForTypeName" $
doc "Generate a constant name for a type (e.g., '_TypeName')" $
"tname" ~>
Strings.cat2 (string "_") (Names.localNameOf @@ var "tname")
constructModule :: TBinding (HaskellNamespaces -> Module -> [Definition] -> Flow Graph H.Module)
constructModule = haskellCoderDefinition "constructModule" $
doc "Construct a Haskell module from a Hydra module and its definitions" $
"namespaces" ~> "mod" ~> "defs" ~> lets [
"h">: "namespace" ~>
unwrap _Namespace @@ var "namespace",
"createDeclarations">: "g" ~> "def" ~>
cases _Definition (var "def") Nothing [
_Definition_type>>: "type" ~> lets [
"name">: Module.typeDefinitionName $ var "type",
"typ">: Module.typeDefinitionType $ var "type"] $
toTypeDeclarationsFrom @@ var "namespaces" @@ var "name" @@ var "typ",
_Definition_term>>: "term" ~>
"d" <<~ toDataDeclaration @@ var "namespaces" @@ var "term" $
Flows.pure $ list [var "d"]],
"importName">: "name" ~>
wrap H._ModuleName $ Strings.intercalate (string ".") (Lists.map (Formatting.capitalize) (Strings.splitOn (string ".") (var "name"))),
"imports">: Lists.concat2 (var "domainImports") (var "standardImports"),
"domainImports">: lets [
"toImport">: "pair" ~> lets [
"namespace">: Pairs.first $ var "pair",
"alias">: Pairs.second $ var "pair",
"name">: var "h" @@ var "namespace"] $
record H._Import [
H._Import_qualified>>: true,
H._Import_module>>: var "importName" @@ var "name",
H._Import_as>>: just $ var "alias",
H._Import_spec>>: nothing]] $
Lists.map (var "toImport") (Maps.toList $ Module.namespacesMapping $ var "namespaces"),
"standardImports">: lets [
"toImport">: "triple" ~> lets [
"name">: Pairs.first $ Pairs.first $ var "triple",
"malias">: Pairs.second $ Pairs.first $ var "triple",
"hidden">: Pairs.second $ var "triple",
"spec">: Logic.ifElse (Lists.null $ var "hidden")
nothing
(just $ inject H._SpecImport H._SpecImport_hiding $ Lists.map ("n" ~> record H._ImportExportSpec [
H._ImportExportSpec_modifier>>: nothing,
H._ImportExportSpec_name>>: HaskellUtils.simpleName @@ var "n",
H._ImportExportSpec_subspec>>: nothing]) (var "hidden"))] $
record H._Import [
H._Import_qualified>>: Maybes.isJust $ var "malias",
H._Import_module>>: wrap H._ModuleName $ var "name",
H._Import_as>>: Maybes.map (unaryFunction $ wrap H._ModuleName) (var "malias"),
H._Import_spec>>: var "spec"]] $
Lists.map (var "toImport") $ Lists.concat2
(list [
pair (pair (string "Prelude") nothing) (list $ string <$> [
"Enum", "Ordering", "decodeFloat", "encodeFloat", "fail", "map", "pure", "sum"]),
pair (pair (string "Data.ByteString") (just $ string "B")) (list ([] :: [TTerm String])),
pair (pair (string "Data.Int") (just $ string "I")) (list ([] :: [TTerm String])),
pair (pair (string "Data.List") (just $ string "L")) (list ([] :: [TTerm String])),
pair (pair (string "Data.Map") (just $ string "M")) (list ([] :: [TTerm String])),
pair (pair (string "Data.Set") (just $ string "S")) (list ([] :: [TTerm String]))])
-- Conditionally add Hydra.Lib.Literals import if binary literals are present
(Logic.ifElse (Schemas.moduleContainsBinaryLiterals @@ var "mod")
(list [pair (pair (string "Hydra.Lib.Literals") (just $ string "Literals")) (list ([] :: [TTerm String]))])
(list ([] :: [TTerm ((String, Maybe String), [String])])))] $
"g" <<~ Monads.getState $
"declLists" <<~ Flows.mapList (var "createDeclarations" @@ var "g") (var "defs") $ lets [
"decls">: Lists.concat $ var "declLists",
"mc">: Module.moduleDescription $ var "mod"] $
Flows.pure $ record H._Module [
H._Module_head>>: just $ record H._ModuleHead [
H._ModuleHead_comments>>: var "mc",
H._ModuleHead_name>>: var "importName" @@ (var "h" @@ (Module.moduleNamespace $ var "mod")),
H._ModuleHead_exports>>: list ([] :: [TTerm H.Export])],
H._Module_imports>>: var "imports",
H._Module_declarations>>: var "decls"]
encodeFunction :: TBinding (HaskellNamespaces -> Function -> Flow Graph H.Expression)
encodeFunction = haskellCoderDefinition "encodeFunction" $
doc "Encode a Hydra function as a Haskell expression" $
"namespaces" ~> "fun" ~>
cases _Function (var "fun") Nothing [
_Function_elimination>>: "e" ~>
cases _Elimination (var "e") Nothing [
_Elimination_wrap>>: "name" ~>
Flows.pure $ inject H._Expression H._Expression_variable $ HaskellUtils.elementReference @@ var "namespaces" @@
(Names.qname @@ (Maybes.fromJust $ Names.namespaceOf @@ var "name") @@ (HaskellUtils.newtypeAccessorName @@ var "name")),
_Elimination_record>>: "proj" ~> lets [
"dn">: Core.projectionTypeName $ var "proj",
"fname">: Core.projectionField $ var "proj"] $
Flows.pure $ inject H._Expression H._Expression_variable $ HaskellUtils.recordFieldReference @@ var "namespaces" @@ var "dn" @@ var "fname",
_Elimination_union>>: "stmt" ~> lets [
"dn">: Core.caseStatementTypeName $ var "stmt",
"def">: Core.caseStatementDefault $ var "stmt",
"fields">: Core.caseStatementCases $ var "stmt",
"caseExpr">:
"rt" <<~ Lexical.withSchemaContext @@ (Schemas.requireUnionType @@ var "dn") $ lets [
"toFieldMapEntry">: "f" ~>
pair (Core.fieldTypeName $ var "f") (var "f"),
"fieldMap">: Maps.fromList $ Lists.map (var "toFieldMapEntry") (Core.rowTypeFields $ var "rt")] $
"ecases" <<~ Flows.mapList (var "toAlt" @@ var "fieldMap") (var "fields") $
"dcases" <<~ (Maybes.cases (var "def")
(Flows.pure $ list ([] :: [TTerm H.CaseRhs])) $
"d" ~>
"cs" <<~ (Flows.map (unaryFunction $ wrap H._CaseRhs) $ encodeTerm @@ var "namespaces" @@ var "d") $ lets [
"lhs">: inject H._Pattern H._Pattern_name $ HaskellUtils.rawName @@ (Constants.ignoredVariable),
"alt">: record H._Alternative [
H._Alternative_pattern>>: var "lhs",
H._Alternative_rhs>>: var "cs",
H._Alternative_binds>>: nothing]] $
Flows.pure $ list [var "alt"]) $
Flows.pure $ inject H._Expression H._Expression_case $ record H._CaseExpression [
H._CaseExpression_case>>: HaskellUtils.hsvar @@ string "x",
H._CaseExpression_alternatives>>: Lists.concat2 (var "ecases") (var "dcases")],
"toAlt">: "fieldMap" ~> "field" ~> lets [
"fn">: Core.fieldName $ var "field",
"fun'">: Core.fieldTerm $ var "field"] $
Annotations.withDepth @@ keyHaskellVar @@ (
"depth" ~> lets [
"v0">: Strings.cat2 (string "v") (Literals.showInt32 $ var "depth"),
"raw">: MetaTerms.apply (var "fun'") (Core.termVariable $ Core.name $ var "v0"),
"rhsTerm">: Rewriting.simplifyTerm @@ var "raw",
"v1">: Logic.ifElse (Rewriting.isFreeVariableInTerm @@ (wrap _Name $ var "v0") @@ var "rhsTerm")
(Constants.ignoredVariable)
(var "v0")] $
"g_ufr" <<~ Monads.getState $ lets [
"hname">: HaskellUtils.unionFieldReference @@ var "g_ufr" @@ var "namespaces" @@ var "dn" @@ var "fn"] $
"args" <<~ (Maybes.cases (Maps.lookup (var "fn") (var "fieldMap"))
(Flows.fail $ Strings.cat $ list [string "field ", Literals.showString $ (Core.unName $ var "fn"),
string " not found in ", Literals.showString $ (Core.unName $ var "dn")]) $
"fieldType" ~> lets [
"ft">: Core.fieldTypeType $ var "fieldType",
"noArgs">: Flows.pure $ list ([] :: [TTerm H.Pattern]),
"singleArg">: Flows.pure $ list [inject H._Pattern H._Pattern_name $ HaskellUtils.rawName @@ var "v1"]] $
cases _Type (Rewriting.deannotateType @@ var "ft")
(Just $ var "singleArg") [
_Type_unit>>: constant $ var "noArgs"]) $ lets [
"lhs">: HaskellUtils.applicationPattern @@ var "hname" @@ var "args"] $
"rhs" <<~ (Flows.map (unaryFunction $ wrap H._CaseRhs) $ encodeTerm @@ var "namespaces" @@ var "rhsTerm") $
Flows.pure $ record H._Alternative [
H._Alternative_pattern>>: var "lhs",
H._Alternative_rhs>>: var "rhs",
H._Alternative_binds>>: nothing])] $
Flows.map (HaskellUtils.hslambda @@ (HaskellUtils.rawName @@ string "x")) (var "caseExpr")],
_Function_lambda>>: "lam" ~> lets [
"v">: Core.lambdaParameter $ var "lam",
"body">: Core.lambdaBody $ var "lam"] $
Flows.bind (encodeTerm @@ var "namespaces" @@ var "body") $ "hbody" ~>
Flows.pure $ HaskellUtils.hslambda @@ (HaskellUtils.elementReference @@ var "namespaces" @@ var "v") @@ var "hbody",
_Function_primitive>>: "name" ~>
Flows.pure $ inject H._Expression H._Expression_variable $ HaskellUtils.elementReference @@ var "namespaces" @@ var "name"]
encodeLiteral :: TBinding (Literal -> Flow Graph H.Expression)
encodeLiteral = haskellCoderDefinition "encodeLiteral" $
doc "Encode a Hydra literal as a Haskell expression" $
"l" ~>
cases _Literal (var "l")
(Just $ Flows.fail $ Strings.cat2 (string "literal value ") (ShowCore.literal @@ var "l")) [
_Literal_binary>>: "bs" ~>
-- Generate: Literals.stringToBinary "base64string"
-- Binary data is stored as a ByteString; we encode to base64 for the source and decode at runtime
-- Note: Literals.binaryToString is called at coder-execution time to convert ByteString to base64 String
Flows.pure $ HaskellUtils.hsapp
@@ (HaskellUtils.hsvar @@ string "Literals.stringToBinary")
@@ (HaskellUtils.hslit @@ (inject H._Literal H._Literal_string
$ Literals.binaryToString $ var "bs")),
_Literal_boolean>>: "b" ~>
Flows.pure $ HaskellUtils.hsvar @@ Logic.ifElse (var "b") (string "True") (string "False"),
_Literal_float>>: "fv" ~>
cases _FloatValue (var "fv") Nothing [
_FloatValue_float32>>: "f" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_float $ var "f"),
_FloatValue_float64>>: "f" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_double $ var "f"),
_FloatValue_bigfloat>>: "f" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_double $ Literals.bigfloatToFloat64 $ var "f")],
_Literal_integer>>: "iv" ~>
cases _IntegerValue (var "iv") Nothing [
_IntegerValue_bigint>>: "i" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_integer $ var "i"),
_IntegerValue_int8>>: "i" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_integer $ Literals.int8ToBigint $ var "i"),
_IntegerValue_int16>>: "i" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_integer $ Literals.int16ToBigint $ var "i"),
_IntegerValue_int32>>: "i" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_int $ var "i"),
_IntegerValue_int64>>: "i" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_integer $ Literals.int64ToBigint $ var "i"),
_IntegerValue_uint8>>: "i" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_integer $ Literals.uint8ToBigint $ var "i"),
_IntegerValue_uint16>>: "i" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_integer $ Literals.uint16ToBigint $ var "i"),
_IntegerValue_uint32>>: "i" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_integer $ Literals.uint32ToBigint $ var "i"),
_IntegerValue_uint64>>: "i" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_integer $ Literals.uint64ToBigint $ var "i")],
_Literal_string>>: "s" ~>
Flows.pure $ HaskellUtils.hslit @@ (inject H._Literal H._Literal_string $ var "s")]
encodeTerm :: TBinding (HaskellNamespaces -> Term -> Flow Graph H.Expression)
encodeTerm = haskellCoderDefinition "encodeTerm" $
doc "Encode a Hydra term as a Haskell expression" $
"namespaces" ~> "term" ~> lets [
"encode">: encodeTerm @@ var "namespaces"] $
"nonemptyMap" <~ ("m" ~> lets [
"lhs">: HaskellUtils.hsvar @@ string "M.fromList",
"encodePair">: "pair" ~> lets [
"k">: Pairs.first $ var "pair",
"v">: Pairs.second $ var "pair",
"hk">: var "encode" @@ var "k",
"hv">: var "encode" @@ var "v"] $
Flows.map
(unaryFunction $ inject H._Expression H._Expression_tuple)
(Flows.sequence $ list [var "hk", var "hv"])] $
"rhs" <<~ Flows.map
(unaryFunction $ inject H._Expression H._Expression_list)
(Flows.mapList (var "encodePair") $ Maps.toList (var "m")) $
Flows.pure $ HaskellUtils.hsapp @@ var "lhs" @@ var "rhs") $
"nonemptySet" <~ ("s" ~> lets [
"lhs">: HaskellUtils.hsvar @@ string "S.fromList" ] $
"rhs" <<~ encodeTerm @@ var "namespaces" @@ (inject _Term _Term_list $ Sets.toList $ var "s") $
Flows.pure $ HaskellUtils.hsapp @@ var "lhs" @@ var "rhs") $
cases _Term (Rewriting.deannotateTerm @@ var "term")
(Just $ Flows.fail $ Strings.cat2 (string "unexpected term: ") (ShowCore.term @@ var "term")) [
_Term_application>>: "app" ~> lets [
"fun">: Core.applicationFunction $ var "app",
"arg">: Core.applicationArgument $ var "app"] $
Flows.bind (var "encode" @@ var "fun") $ "hfun" ~>
Flows.bind (var "encode" @@ var "arg") $ "harg" ~>
Flows.pure $ HaskellUtils.hsapp @@ var "hfun" @@ var "harg",
_Term_either>>: "e" ~> Eithers.either_
("l" ~>
Flows.bind (var "encode" @@ var "l") $ "hl" ~>
Flows.pure $ HaskellUtils.hsapp @@ (HaskellUtils.hsvar @@ string "Left") @@ var "hl")
("r" ~>
Flows.bind (var "encode" @@ var "r") $ "hr" ~>
Flows.pure $ HaskellUtils.hsapp @@ (HaskellUtils.hsvar @@ string "Right") @@ var "hr")
(var "e"),
_Term_function>>: "f" ~>
encodeFunction @@ var "namespaces" @@ var "f",
_Term_let>>: "letTerm" ~> lets [
"bindings">: Core.letBindings $ var "letTerm",
"env">: Core.letBody $ var "letTerm",
"encodeBinding">: "binding" ~> lets [
"name">: Core.bindingName $ var "binding",
"term'">: Core.bindingTerm $ var "binding",
"hname">: HaskellUtils.simpleName @@ (Core.unName $ var "name")] $
"hexpr" <<~ var "encode" @@ var "term'" $
Flows.pure $ inject H._LocalBinding H._LocalBinding_value $ HaskellUtils.simpleValueBinding @@ var "hname" @@ var "hexpr" @@ nothing] $
"hbindings" <<~ Flows.mapList (var "encodeBinding") (var "bindings") $
"hinner" <<~ var "encode" @@ var "env" $
Flows.pure $ inject H._Expression H._Expression_let $ record H._LetExpression [
H._LetExpression_bindings>>: var "hbindings",
H._LetExpression_inner>>: var "hinner"],
_Term_list>>: "els" ~>
Flows.bind (Flows.mapList (var "encode") (var "els")) $ "helems" ~>
Flows.pure $ inject H._Expression H._Expression_list $ var "helems",
_Term_literal>>: "v" ~>
encodeLiteral @@ var "v",
_Term_map>>: "m" ~> Logic.ifElse (Maps.null $ var "m")
(produce $ HaskellUtils.hsvar @@ string "M.empty")
(var "nonemptyMap" @@ var "m"),
_Term_maybe>>: "m" ~>
Maybes.cases (var "m")
(Flows.pure $ HaskellUtils.hsvar @@ string "Nothing") $
"t" ~>
Flows.bind (var "encode" @@ var "t") $ "ht" ~>
Flows.pure $ HaskellUtils.hsapp @@ (HaskellUtils.hsvar @@ string "Just") @@ var "ht",
_Term_pair>>: "p" ~>
"f" <<~ var "encode" @@ Pairs.first (var "p") $
"s" <<~ var "encode" @@ Pairs.second (var "p") $
Flows.pure $ inject H._Expression H._Expression_tuple $ list [var "f", var "s"],
_Term_record>>: "record" ~> lets [
"sname">: Core.recordTypeName $ var "record",
"fields">: Core.recordFields $ var "record",
"toFieldUpdate">: "field" ~> lets [
"fn">: Core.fieldName $ var "field",
"ft">: Core.fieldTerm $ var "field",
"fieldRef">: HaskellUtils.recordFieldReference @@ var "namespaces" @@ var "sname" @@ var "fn"] $
"hft" <<~ var "encode" @@ var "ft" $
Flows.pure $ record H._FieldUpdate [
H._FieldUpdate_name>>: var "fieldRef",
H._FieldUpdate_value>>: var "hft"],
"typeName">: HaskellUtils.elementReference @@ var "namespaces" @@ var "sname"] $
"updates" <<~ Flows.mapList (var "toFieldUpdate") (var "fields") $
Flows.pure $ inject H._Expression H._Expression_constructRecord $ record H._ConstructRecordExpression [
H._ConstructRecordExpression_name>>: var "typeName",
H._ConstructRecordExpression_fields>>: var "updates"],
_Term_set>>: "s" ~> Logic.ifElse (Sets.null $ var "s")
(produce $ HaskellUtils.hsvar @@ string "S.empty")
(var "nonemptySet" @@ var "s"),
_Term_typeLambda>>: "abs" ~> lets [
"term1">: Core.typeLambdaBody $ var "abs"] $
var "encode" @@ var "term1",
_Term_typeApplication>>: "typed" ~> lets [
"term1">: Core.typeApplicationTermBody $ var "typed"] $
var "encode" @@ var "term1",
_Term_union>>: "injection" ~> lets [
"sname">: Core.injectionTypeName $ var "injection",
"field">: Core.injectionField $ var "injection",
"fn">: Core.fieldName $ var "field",
"ft">: Core.fieldTerm $ var "field"] $
"g_ufr2" <<~ Monads.getState $ lets [
"lhs">: inject H._Expression H._Expression_variable $ HaskellUtils.unionFieldReference @@ var "g_ufr2" @@ var "namespaces" @@ var "sname" @@ var "fn",
"dflt">: Flows.map (HaskellUtils.hsapp @@ var "lhs") (var "encode" @@ var "ft")] $
"ftyp" <<~ Schemas.requireUnionField_ @@ var "sname" @@ var "fn" $
cases _Type (Rewriting.deannotateType @@ var "ftyp")
(Just $ var "dflt") [
_Type_unit>>: constant $ Flows.pure $ var "lhs"],
_Term_unit>>: constant $ Flows.pure $ inject H._Expression H._Expression_tuple $ list ([] :: [TTerm H.Expression]),
_Term_variable>>: "name" ~>
Flows.pure $ inject H._Expression H._Expression_variable $ HaskellUtils.elementReference @@ var "namespaces" @@ var "name",
_Term_wrap>>: "wrapped" ~> lets [
"tname">: Core.wrappedTermTypeName $ var "wrapped",
"term'">: Core.wrappedTermBody $ var "wrapped",
"lhs">: inject H._Expression H._Expression_variable $ HaskellUtils.elementReference @@ var "namespaces" @@ var "tname"] $
"rhs" <<~ var "encode" @@ var "term'" $
Flows.pure $ HaskellUtils.hsapp @@ var "lhs" @@ var "rhs"]
encodeType :: TBinding (HaskellNamespaces -> Type -> Flow Graph H.Type)
encodeType = haskellCoderDefinition "encodeType" $
doc "Encode a Hydra type as a Haskell type" $
"namespaces" ~>
"typ" ~> lets [
"encode">: encodeType @@ var "namespaces",
"ref">: "name" ~>
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.elementReference @@ var "namespaces" @@ var "name",
"unitTuple">: inject H._Type H._Type_tuple $ list ([] :: [TTerm H.Type])] $
trace (string "encode type") $
cases _Type (Rewriting.deannotateType @@ var "typ")
(Just $ Flows.fail $ Strings.cat2 (string "unexpected type: ") (ShowCore.type_ @@ var "typ")) [
_Type_application>>: "app" ~> lets [
"lhs">: Core.applicationTypeFunction $ var "app",
"rhs">: Core.applicationTypeArgument $ var "app"] $
Flows.bind (var "encode" @@ var "lhs") $ "hlhs" ~>
Flows.bind (var "encode" @@ var "rhs") $ "hrhs" ~>
Flows.pure $ HaskellUtils.toTypeApplication @@ list [var "hlhs", var "hrhs"],
_Type_either>>: "eitherType" ~> lets [
"left">: Core.eitherTypeLeft $ var "eitherType",
"right">: Core.eitherTypeRight $ var "eitherType"] $
Flows.map
(HaskellUtils.toTypeApplication)
(Flows.sequence $ list [
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "Either",
var "encode" @@ var "left",
var "encode" @@ var "right"]),
_Type_function>>: "funType" ~> lets [
"dom">: Core.functionTypeDomain $ var "funType",
"cod">: Core.functionTypeCodomain $ var "funType"] $
Flows.bind (var "encode" @@ var "dom") $ "hdom" ~>
Flows.bind (var "encode" @@ var "cod") $ "hcod" ~>
Flows.pure $ inject H._Type H._Type_function $ record H._FunctionType [
H._FunctionType_domain>>: var "hdom",
H._FunctionType_codomain>>: var "hcod"],
_Type_forall>>: "forallType" ~> lets [
"v">: Core.forallTypeParameter $ var "forallType",
"body">: Core.forallTypeBody $ var "forallType"] $
var "encode" @@ var "body",
_Type_list>>: "lt" ~>
Flows.bind (var "encode" @@ var "lt") $ "hlt" ~>
Flows.pure $ inject H._Type H._Type_list $ var "hlt",
_Type_literal>>: "lt" ~>
cases _LiteralType (var "lt")
(Just $ Flows.fail $ Strings.cat2 (string "unexpected literal type: ") (ShowCore.literalType @@ var "lt")) [
_LiteralType_binary>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "B.ByteString",
_LiteralType_boolean>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "Bool",
_LiteralType_float>>: "ft" ~>
cases _FloatType (var "ft") Nothing [
_FloatType_float32>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "Float",
_FloatType_float64>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "Double",
_FloatType_bigfloat>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "Double"],
_LiteralType_integer>>: "it" ~>
cases _IntegerType (var "it")
(Just $ Flows.fail $ Strings.cat2 (string "unexpected integer type: ") (ShowCore.integerType @@ var "it")) [
_IntegerType_bigint>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "Integer",
_IntegerType_int8>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "I.Int8",
_IntegerType_int16>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "I.Int16",
_IntegerType_int32>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "Int",
_IntegerType_int64>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "I.Int64"],
_LiteralType_string>>: constant $
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "String"],
_Type_map>>: "mapType" ~> lets [
"kt">: Core.mapTypeKeys $ var "mapType",
"vt">: Core.mapTypeValues $ var "mapType"] $
Flows.map
(HaskellUtils.toTypeApplication)
(Flows.sequence $ list [
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "M.Map",
var "encode" @@ var "kt",
var "encode" @@ var "vt"]),
_Type_maybe>>: "ot" ~>
Flows.map
(HaskellUtils.toTypeApplication)
(Flows.sequence $ list [
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "Maybe",
var "encode" @@ var "ot"]),
_Type_pair>>: "pt" ~>
"f" <<~ var "encode" @@ (Core.pairTypeFirst $ var "pt") $
"s" <<~ var "encode" @@ (Core.pairTypeSecond $ var "pt") $
Flows.pure $ inject H._Type H._Type_tuple $ list [var "f", var "s"],
_Type_record>>: "rt" ~> var "ref" @@ (Core.rowTypeTypeName $ var "rt"),
_Type_set>>: "st" ~>
Flows.map
(HaskellUtils.toTypeApplication)
(Flows.sequence $ list [
Flows.pure $ inject H._Type H._Type_variable $ HaskellUtils.rawName @@ string "S.Set",
var "encode" @@ var "st"]),
_Type_union>>: "rt" ~> lets [
"typeName">: Core.rowTypeTypeName $ var "rt"] $
var "ref" @@ var "typeName",
_Type_unit>>: constant $ Flows.pure $ var "unitTuple",
_Type_variable>>: "v1" ~> var "ref" @@ var "v1",
_Type_wrap>>: "wrapped" ~> lets [
"name">: Core.wrappedTypeTypeName $ var "wrapped"] $
var "ref" @@ var "name"]
encodeTypeWithClassAssertions :: TBinding (HaskellNamespaces -> M.Map Name (S.Set TypeClass) -> Type -> Flow Graph H.Type)
encodeTypeWithClassAssertions = haskellCoderDefinition "encodeTypeWithClassAssertions" $
doc "Encode a Hydra type as a Haskell type with typeclass assertions" $
"namespaces" ~> "explicitClasses" ~> "typ" ~> lets [
"classes">: Maps.union (var "explicitClasses") (getImplicitTypeClasses @@ var "typ"),
"implicitClasses">: getImplicitTypeClasses @@ var "typ",
"encodeAssertion">: "pair" ~> lets [
"name">: Pairs.first $ var "pair",
"cls">: Pairs.second $ var "pair",
"hname">: HaskellUtils.rawName @@ cases _TypeClass (var "cls") Nothing [
_TypeClass_equality>>: constant $ string "Eq",
_TypeClass_ordering>>: constant $ string "Ord"],
"htype">: inject H._Type H._Type_variable $ HaskellUtils.rawName @@ (Core.unName $ var "name")] $
inject H._Assertion H._Assertion_class $ record H._ClassAssertion [
H._ClassAssertion_name>>: var "hname",
H._ClassAssertion_types>>: list [var "htype"]],
"assertPairs">: Lists.concat $ Lists.map (var "toPairs") (Maps.toList $ var "classes"),
"toPairs">: "mapEntry" ~> lets [
"name">: Pairs.first $ var "mapEntry",
"clsSet">: Pairs.second $ var "mapEntry",
"toPair">: "c" ~>
pair (var "name") (var "c")] $
Lists.map (var "toPair") (Sets.toList $ var "clsSet")] $
Monads.withTrace @@ (string "encode with assertions") @@
("htyp" <<~ adaptTypeToHaskellAndEncode @@ var "namespaces" @@ var "typ" $
Logic.ifElse (Lists.null $ var "assertPairs")
(Flows.pure $ var "htyp") (lets [
"encoded">: Lists.map (var "encodeAssertion") (var "assertPairs"),
"hassert">: Logic.ifElse (Equality.equal (Lists.length $ var "encoded") (int32 1))
(Lists.head $ var "encoded")
(inject H._Assertion H._Assertion_tuple $ var "encoded")] $
Flows.pure $ inject H._Type H._Type_ctx $ record H._ContextType [
H._ContextType_ctx>>: var "hassert",
H._ContextType_type>>: var "htyp"]))
findOrdVariables :: TBinding (Type -> S.Set Name)
findOrdVariables = haskellCoderDefinition "findOrdVariables" $
doc "Find type variables that require an Ord constraint (used in maps or sets)" $
"typ" ~> lets [
"fold">: "names" ~> "typ'" ~>
cases _Type (var "typ'")
(Just $ var "names") [
_Type_map>>: "mapType" ~> lets [
"kt">: Core.mapTypeKeys $ var "mapType"] $
var "tryType" @@ var "names" @@ var "kt",
_Type_set>>: "et" ~>
var "tryType" @@ var "names" @@ var "et"],
"isTypeVariable">: "v" ~> lets [
"nameStr">: Core.unName $ var "v",
"hasNoNamespace">: Maybes.isNothing $ Names.namespaceOf @@ var "v",
"startsWithT">: Equality.equal (Strings.charAt (int32 0) (var "nameStr")) (int32 116)] $ -- 't' character
Logic.and (var "hasNoNamespace") (var "startsWithT"),
"tryType">: "names" ~> "t" ~>
cases _Type (Rewriting.deannotateType @@ var "t")
(Just $ var "names") [
_Type_variable>>: "v" ~>
Logic.ifElse (var "isTypeVariable" @@ var "v")
(Sets.insert (var "v") (var "names"))
(var "names")]] $
Rewriting.foldOverType @@ Coders.traversalOrderPre @@ var "fold" @@ Sets.empty @@ var "typ"
getImplicitTypeClasses :: TBinding (Type -> M.Map Name (S.Set TypeClass))
getImplicitTypeClasses = haskellCoderDefinition "getImplicitTypeClasses" $
doc "Get implicit typeclass constraints for type variables that need Ord" $
"typ" ~> lets [
"toPair">: "name" ~>
pair (var "name") (Sets.fromList $ list [Graph.typeClassOrdering])] $
Maps.fromList $ Lists.map (var "toPair") (Sets.toList $ findOrdVariables @@ var "typ")
moduleToHaskellModule :: TBinding (Module -> [Definition] -> Flow Graph H.Module)
moduleToHaskellModule = haskellCoderDefinition "moduleToHaskellModule" $
doc "Convert a Hydra module and definitions to a Haskell module AST" $
"mod" ~> "defs" ~>
"namespaces" <<~ HaskellUtils.namespacesForModule @@ var "mod" $
constructModule @@ var "namespaces" @@ var "mod" @@ var "defs"
moduleToHaskell :: TBinding (Module -> [Definition] -> Flow Graph (M.Map String String))
moduleToHaskell = haskellCoderDefinition "moduleToHaskell" $
doc "Convert a Hydra module to Haskell source code as a filepath-to-content map" $
"mod" ~> "defs" ~>
"hsmod" <<~ moduleToHaskellModule @@ var "mod" @@ var "defs" $ lets [
"s">: Serialization.printExpr @@ (Serialization.parenthesize @@ (HaskellSerde.moduleToExpr @@ var "hsmod")),
"filepath">: Names.namespaceToFilePath @@ Util.caseConventionPascal @@ (wrap _FileExtension $ string "hs") @@ (Module.moduleNamespace $ var "mod")] $
Flows.pure $ Maps.singleton (var "filepath") (var "s")
nameDecls :: TBinding (Graph -> HaskellNamespaces -> Name -> Type -> [H.DeclarationWithComments])
nameDecls = haskellCoderDefinition "nameDecls" $
doc "Generate Haskell declarations for type and field name constants" $
"g" ~> "namespaces" ~> "name" ~> "typ" ~> lets [
"nm">: Core.unName $ var "name",
"toDecl">: "n" ~> "pair" ~> lets [
"k">: Pairs.first $ var "pair",
"v">: Pairs.second $ var "pair",
"decl">: inject H._Declaration H._Declaration_valueBinding $ inject H._ValueBinding H._ValueBinding_simple $ record H._SimpleValueBinding [
H._SimpleValueBinding_pattern>>: HaskellUtils.applicationPattern @@ (HaskellUtils.simpleName @@ var "k") @@ list ([] :: [TTerm H.Pattern]),
H._SimpleValueBinding_rhs>>: wrap H._RightHandSide $ inject H._Expression H._Expression_application $ record H._ApplicationExpression [
H._ApplicationExpression_function>>: inject H._Expression H._Expression_variable $ HaskellUtils.elementReference @@ var "namespaces" @@ var "n",
H._ApplicationExpression_argument>>: inject H._Expression H._Expression_literal $ inject H._Literal H._Literal_string $ var "v"],
H._SimpleValueBinding_localBindings>>: nothing]] $
record H._DeclarationWithComments [
H._DeclarationWithComments_body>>: var "decl",
H._DeclarationWithComments_comments>>: nothing],
"nameDecl">: pair (constantForTypeName @@ var "name") (var "nm"),
"fieldDecls">: Lists.map (var "toConstant") (Lexical.fieldsOf @@ var "typ"),
"toConstant">: "fieldType" ~> lets [
"fname">: Core.fieldTypeName $ var "fieldType"] $
pair (constantForFieldName @@ var "name" @@ var "fname") (Core.unName $ var "fname")] $
Logic.ifElse (useCoreImport)
(Lists.cons (var "toDecl" @@ Core.nameLift _Name @@ var "nameDecl") (Lists.map (var "toDecl" @@ Core.nameLift _Name) (var "fieldDecls")))
(list ([] :: [TTerm H.DeclarationWithComments]))
toDataDeclaration :: TBinding (HaskellNamespaces -> TermDefinition -> Flow Graph H.DeclarationWithComments)
toDataDeclaration = haskellCoderDefinition "toDataDeclaration" $
doc "Convert a Hydra term definition to a Haskell declaration with comments" $
"namespaces" ~> "def" ~> lets [
"name">: Module.termDefinitionName $ var "def",
"term">: Module.termDefinitionTerm $ var "def",
"typ">: Module.termDefinitionType $ var "def",
"hname">: HaskellUtils.simpleName @@ (Names.localNameOf @@ var "name"),
"rewriteValueBinding">: "vb" ~>
cases H._ValueBinding (var "vb") Nothing [
H._ValueBinding_simple>>: "simple" ~> lets [
"pattern'">: project H._SimpleValueBinding H._SimpleValueBinding_pattern @@ var "simple",
"rhs">: project H._SimpleValueBinding H._SimpleValueBinding_rhs @@ var "simple",
"bindings">: project H._SimpleValueBinding H._SimpleValueBinding_localBindings @@ var "simple"] $
cases H._Pattern (var "pattern'")
(Just $ var "vb") [
H._Pattern_application>>: "appPat" ~> lets [
"name'">: project H._ApplicationPattern H._ApplicationPattern_name @@ var "appPat",
"args">: project H._ApplicationPattern H._ApplicationPattern_args @@ var "appPat",
"rhsExpr">: unwrap H._RightHandSide @@ var "rhs"] $
cases H._Expression (var "rhsExpr")
(Just $ var "vb") [
H._Expression_lambda>>: "lambda'" ~> lets [
"vars">: project H._LambdaExpression H._LambdaExpression_bindings @@ var "lambda'",
"body">: project H._LambdaExpression H._LambdaExpression_inner @@ var "lambda'",
"newPattern">: HaskellUtils.applicationPattern @@ var "name'" @@ (Lists.concat2 (var "args") (var "vars")),
"newRhs">: wrap H._RightHandSide $ var "body"] $
var "rewriteValueBinding" @@ (inject H._ValueBinding H._ValueBinding_simple $ record H._SimpleValueBinding [
H._SimpleValueBinding_pattern>>: var "newPattern",
H._SimpleValueBinding_rhs>>: var "newRhs",
H._SimpleValueBinding_localBindings>>: var "bindings"])]]],
"toDecl">: "comments" ~> "hname'" ~> "term'" ~> "bindings" ~>
cases _Term (Rewriting.deannotateTerm @@ var "term'")
(Just $
"hterm" <<~ encodeTerm @@ var "namespaces" @@ var "term'" $ lets [
"vb">: HaskellUtils.simpleValueBinding @@ var "hname'" @@ var "hterm" @@ var "bindings",
-- Extract constraints from the TypeScheme and convert to class assertions
"schemeConstraints">: Core.typeSchemeConstraints (var "typ"),
"schemeClasses">: typeSchemeConstraintsToClassMap @@ var "schemeConstraints"] $
"explicitClasses" <<~ Annotations.getTypeClasses @@ (Rewriting.removeTypesFromTerm @@ var "term") $
-- Combine constraints from TypeScheme with any explicit annotations
"combinedClasses" <~ Maps.union (var "schemeClasses") (var "explicitClasses") $
"htype" <<~ encodeTypeWithClassAssertions @@ var "namespaces" @@ var "combinedClasses" @@ (Core.typeSchemeType $ var "typ") $ lets [
"decl">: inject H._Declaration H._Declaration_typedBinding $ record H._TypedBinding [
H._TypedBinding_typeSignature>>: record H._TypeSignature [
H._TypeSignature_name>>: var "hname'",
H._TypeSignature_type>>: var "htype"],
H._TypedBinding_valueBinding>>: var "rewriteValueBinding" @@ var "vb"]] $
Flows.pure $ record H._DeclarationWithComments [
H._DeclarationWithComments_body>>: var "decl",
H._DeclarationWithComments_comments>>: var "comments"]) [
_Term_let>>: "letTerm" ~> lets [
-- For let terms, encode each binding's term directly
"lbindings">: Core.letBindings $ var "letTerm",
"env">: Core.letBody $ var "letTerm",
"toBinding">: "hname''" ~> "hterm'" ~>
inject H._LocalBinding H._LocalBinding_value $ HaskellUtils.simpleValueBinding @@ var "hname''" @@ var "hterm'" @@ nothing,
"hnames">: Lists.map ("binding" ~> HaskellUtils.simpleName @@ (Core.unName $ Core.bindingName $ var "binding")) (var "lbindings"),
"terms">: Lists.map (unaryFunction $ Core.bindingTerm) (var "lbindings")] $
"hterms" <<~ Flows.mapList (encodeTerm @@ var "namespaces") (var "terms") $ lets [
"hbindings">: Lists.zipWith (var "toBinding") (var "hnames") (var "hterms"),
-- Merge new bindings with any previously accumulated bindings from outer lets
"prevBindings">: Maybes.maybe (list ([] :: [TTerm H.LocalBinding])) ("lb" ~> unwrap H._LocalBindings @@ var "lb") (var "bindings"),
"allBindings">: Lists.concat2 (var "prevBindings") (var "hbindings")] $
var "toDecl" @@ var "comments" @@ var "hname'" @@ var "env" @@ (just $ wrap H._LocalBindings $ var "allBindings")]] $
"comments" <<~ Annotations.getTermDescription @@ var "term" $
var "toDecl" @@ var "comments" @@ var "hname" @@ var "term" @@ nothing
--toTypeDeclarations :: TBinding (HaskellNamespaces -> Binding -> Term -> Flow Graph [H.DeclarationWithComments])
--toTypeDeclarations = haskellCoderDefinition "toTypeDeclarations" $
-- "namespaces" ~> "el" ~> "term" ~> lets [
-- "elementName">: Core.bindingName $ var "el",
-- "lname">: Names.localNameOf @@ var "elementName",
-- "hname">: HaskellUtils.simpleName @@ var "lname",
-- "declHead">: "name" ~> "vars'" ~> Logic.ifElse (Lists.null $ var "vars'")
-- (inject H._DeclarationHead H._DeclarationHead_simple $ var "name")
-- (lets [
-- "h">: Lists.head $ var "vars'",
-- "rest">: Lists.tail $ var "vars'",
-- "hvar">: wrap H._Variable $ HaskellUtils.simpleName @@ (Core.unName $ var "h")] $
-- inject H._DeclarationHead H._DeclarationHead_application $ record H._ApplicationDeclarationHead [
-- H._ApplicationDeclarationHead_function>>: var "declHead" @@ var "name" @@ var "rest",
-- H._ApplicationDeclarationHead_operand>>: var "hvar"]),
-- "newtypeCons">: "el'" ~> "typ'" ~> lets [
-- "hname">: HaskellUtils.simpleName @@ (HaskellUtils.newtypeAccessorName @@ (Core.bindingName $ var "el'"))] $
-- "htype" <<~ adaptTypeToHaskellAndEncode @@ var "namespaces" @@ var "typ'" $ lets [
-- "hfield">: record H._FieldWithComments [
-- H._FieldWithComments_field>>: record H._Field [
-- H._Field_name>>: var "hname",
-- H._Field_type>>: var "htype"],
-- H._FieldWithComments_comments>>: nothing],
-- "constructorName">: HaskellUtils.simpleName @@ (Names.localNameOf @@ (Core.bindingName $ var "el'"))] $
-- Flows.pure $ record H._ConstructorWithComments [
-- H._ConstructorWithComments_body>>: inject H._Constructor H._Constructor_record $ record H._RecordConstructor [
-- H._RecordConstructor_name>>: var "constructorName",
-- H._RecordConstructor_fields>>: list [var "hfield"]],
-- H._ConstructorWithComments_comments>>: nothing],
-- "recordCons">: "lname'" ~> "fields" ~> lets [
-- "toField">: "fieldType" ~> lets [
-- "fname">: Core.fieldTypeName $ var "fieldType",
-- "ftype">: Core.fieldTypeType $ var "fieldType",
-- "hname'">: HaskellUtils.simpleName @@ Strings.cat2
-- (Formatting.decapitalize @@ var "lname'")
-- (Formatting.capitalize @@ (Core.unName $ var "fname"))] $
-- "htype" <<~ adaptTypeToHaskellAndEncode @@ var "namespaces" @@ var "ftype" $
-- "comments" <<~ Annotations.getTypeDescription @@ var "ftype" $
-- Flows.pure $ record H._FieldWithComments [
-- H._FieldWithComments_field>>: record H._Field [
-- H._Field_name>>: var "hname'",
-- H._Field_type>>: var "htype"],
-- H._FieldWithComments_comments>>: var "comments"]] $
-- "hFields" <<~ Flows.mapList (var "toField") (var "fields") $
-- Flows.pure $ record H._ConstructorWithComments [
-- H._ConstructorWithComments_body>>: inject H._Constructor H._Constructor_record $ record H._RecordConstructor [
-- H._RecordConstructor_name>>: HaskellUtils.simpleName @@ var "lname'",
-- H._RecordConstructor_fields>>: var "hFields"],
-- H._ConstructorWithComments_comments>>: nothing],
-- "unionCons">: "g'" ~> "lname'" ~> "fieldType" ~> lets [
-- "fname">: Core.fieldTypeName $ var "fieldType",
-- "ftype">: Core.fieldTypeType $ var "fieldType",
-- "deconflict">: "name" ~> lets [
-- "tname">: Names.unqualifyName @@ record _QualifiedName [
-- _QualifiedName_namespace>>: just $ Pairs.first $ Module.namespacesFocus $ var "namespaces",
-- _QualifiedName_local>>: var "name"]] $
-- Logic.ifElse (Maybes.isJust $ Maps.lookup (var "tname") (Graph.graphElements $ var "g'"))
-- (var "deconflict" @@ Strings.cat2 (var "name") (string "_"))
-- (var "name")] $
-- "comments" <<~ Annotations.getTypeDescription @@ var "ftype" $ lets [
-- "nm">: var "deconflict" @@ Strings.cat2 (Formatting.capitalize @@ var "lname'") (Formatting.capitalize @@ (Core.unName $ var "fname"))] $
-- "typeList" <<~ (Logic.ifElse (Equality.equal (Rewriting.deannotateType @@ var "ftype") MetaTypes.unit)
-- (Flows.pure $ list ([] :: [TTerm H.CaseRhs])) $
-- Flows.bind (adaptTypeToHaskellAndEncode @@ var "namespaces" @@ var "ftype") $ "htype" ~>
-- Flows.pure $ list [var "htype"]) $
-- Flows.pure $ record H._ConstructorWithComments [
-- H._ConstructorWithComments_body>>: inject H._Constructor H._Constructor_ordinary $ record H._OrdinaryConstructor [
-- H._OrdinaryConstructor_name>>: HaskellUtils.simpleName @@ var "nm",
-- H._OrdinaryConstructor_fields>>: var "typeList"],
-- H._ConstructorWithComments_comments>>: var "comments"]] $
-- Monads.withTrace @@ (Strings.cat2 (string "type element ") (Core.unName $ var "elementName")) @@ (
-- "g" <<~ Monads.getState $
-- "t" <<~ (trace (string "to type declarations") $ DecodeCore.type_ @@ var "term") $
-- "isSer" <<~ (Schemas.isSerializable @@ var "el") $ lets [
-- "deriv">: wrap H._Deriving $ Logic.ifElse (var "isSer")
-- (Lists.map (HaskellUtils.rawName) (list [string "Eq", string "Ord", string "Read", string "Show"]))
-- (list ([] :: [TTerm H.Name])),
-- "unpackResult">: HaskellUtils.unpackForallType @@ var "g" @@ var "t",
-- "vars">: Pairs.first $ var "unpackResult",
-- "t'">: Pairs.second $ var "unpackResult",
-- "hd">: var "declHead" @@ var "hname" @@ (Lists.reverse $ var "vars")] $
-- "decl" <<~ (cases _Type (Rewriting.deannotateType @@ var "t'")
-- (Just $ "htype" <<~ adaptTypeToHaskellAndEncode @@ var "namespaces" @@ var "t" $
-- Flows.pure $ inject H._Declaration H._Declaration_type $ record H._TypeDeclaration [
-- H._TypeDeclaration_name>>: var "hd",
-- H._TypeDeclaration_type>>: var "htype"]) [
-- _Type_record>>: "rt" ~>
-- "cons" <<~ (var "recordCons" @@ var "lname" @@ (Core.rowTypeFields $ var "rt")) $
-- Flows.pure $ inject H._Declaration H._Declaration_data $ record H._DataDeclaration [
-- H._DataDeclaration_keyword>>: injectUnit H._DataOrNewtype H._DataOrNewtype_data,
-- H._DataDeclaration_context>>: list ([] :: [TTerm H.Assertion]),
-- H._DataDeclaration_head>>: var "hd",
-- H._DataDeclaration_constructors>>: list [var "cons"],
-- H._DataDeclaration_deriving>>: list [var "deriv"]],
-- _Type_union>>: "rt" ~>
-- "cons" <<~ Flows.mapList (var "unionCons" @@ var "g" @@ var "lname") (Core.rowTypeFields $ var "rt") $
-- Flows.pure $ inject H._Declaration H._Declaration_data $ record H._DataDeclaration [
-- H._DataDeclaration_keyword>>: injectUnit H._DataOrNewtype H._DataOrNewtype_data,
-- H._DataDeclaration_context>>: list ([] :: [TTerm H.Assertion]),
-- H._DataDeclaration_head>>: var "hd",
-- H._DataDeclaration_constructors>>: var "cons",
-- H._DataDeclaration_deriving>>: list [var "deriv"]],
-- _Type_wrap>>: "wrapped" ~> lets [
-- "tname">: Core.wrappedTypeTypeName $ var "wrapped",
-- "wt">: Core.wrappedTypeBody $ var "wrapped"] $
-- "cons" <<~ var "newtypeCons" @@ var "el" @@ var "wt" $
-- Flows.pure $ inject H._Declaration H._Declaration_data $ record H._DataDeclaration [
-- H._DataDeclaration_keyword>>: injectUnit H._DataOrNewtype H._DataOrNewtype_newtype,
-- H._DataDeclaration_context>>: list ([] :: [TTerm H.Assertion]),
-- H._DataDeclaration_head>>: var "hd",
-- H._DataDeclaration_constructors>>: list [var "cons"],
-- H._DataDeclaration_deriving>>: list [var "deriv"]]]) $
-- "comments" <<~ Annotations.getTermDescription @@ var "term" $
-- "tdecls" <<~ (Logic.ifElse (includeTypeDefinitions)
-- (Flows.bind (typeDecl @@ var "namespaces" @@ var "elementName" @@ var "t") $ "decl'" ~>
-- Flows.pure $ list [var "decl'"])
-- (Flows.pure $ list ([] :: [TTerm H.DeclarationWithComments]))) $ lets [
-- "mainDecl">: record H._DeclarationWithComments [
-- H._DeclarationWithComments_body>>: var "decl",
-- H._DeclarationWithComments_comments>>: var "comments"],
-- "nameDecls'">: nameDecls @@ var "g" @@ var "namespaces" @@ var "elementName" @@ var "t"] $
-- Flows.pure $ Lists.concat $ list [list [var "mainDecl"], var "nameDecls'", var "tdecls"])
-- | Simplified version of toTypeDeclarations that works with Name and Type directly
-- This is used with the new Definition-based API
toTypeDeclarationsFrom :: TBinding (HaskellNamespaces -> Name -> Type -> Flow Graph [H.DeclarationWithComments])
toTypeDeclarationsFrom = haskellCoderDefinition "toTypeDeclarationsFrom" $
doc "Convert a Hydra type definition to Haskell declarations" $
"namespaces" ~> "elementName" ~> "typ" ~> lets [
"lname">: Names.localNameOf @@ var "elementName",
"hname">: HaskellUtils.simpleName @@ var "lname",
"declHead">: "name" ~> "vars'" ~> Logic.ifElse (Lists.null $ var "vars'")
(inject H._DeclarationHead H._DeclarationHead_simple $ var "name")
(lets [
"h">: Lists.head $ var "vars'",
"rest">: Lists.tail $ var "vars'",
"hvar">: wrap H._Variable $ HaskellUtils.simpleName @@ (Core.unName $ var "h")] $
inject H._DeclarationHead H._DeclarationHead_application $ record H._ApplicationDeclarationHead [
H._ApplicationDeclarationHead_function>>: var "declHead" @@ var "name" @@ var "rest",
H._ApplicationDeclarationHead_operand>>: var "hvar"]),
"newtypeCons">: "tname" ~> "typ'" ~> lets [
"hname">: HaskellUtils.simpleName @@ (HaskellUtils.newtypeAccessorName @@ var "tname")] $
"htype" <<~ adaptTypeToHaskellAndEncode @@ var "namespaces" @@ var "typ'" $ lets [
"hfield">: record H._FieldWithComments [
H._FieldWithComments_field>>: record H._Field [
H._Field_name>>: var "hname",
H._Field_type>>: var "htype"],
H._FieldWithComments_comments>>: nothing],
"constructorName">: HaskellUtils.simpleName @@ (Names.localNameOf @@ var "tname")] $
Flows.pure $ record H._ConstructorWithComments [
H._ConstructorWithComments_body>>: inject H._Constructor H._Constructor_record $ record H._RecordConstructor [
H._RecordConstructor_name>>: var "constructorName",
H._RecordConstructor_fields>>: list [var "hfield"]],
H._ConstructorWithComments_comments>>: nothing],
"recordCons">: "lname'" ~> "fields" ~> lets [
"toField">: "fieldType" ~> lets [
"fname">: Core.fieldTypeName $ var "fieldType",
"ftype">: Core.fieldTypeType $ var "fieldType",
"hname'">: HaskellUtils.simpleName @@ Strings.cat2
(Formatting.decapitalize @@ var "lname'")
(Formatting.capitalize @@ (Core.unName $ var "fname"))] $
"htype" <<~ adaptTypeToHaskellAndEncode @@ var "namespaces" @@ var "ftype" $
"comments" <<~ Annotations.getTypeDescription @@ var "ftype" $
Flows.pure $ record H._FieldWithComments [
H._FieldWithComments_field>>: record H._Field [
H._Field_name>>: var "hname'",
H._Field_type>>: var "htype"],
H._FieldWithComments_comments>>: var "comments"]] $
"hFields" <<~ Flows.mapList (var "toField") (var "fields") $
Flows.pure $ record H._ConstructorWithComments [
H._ConstructorWithComments_body>>: inject H._Constructor H._Constructor_record $ record H._RecordConstructor [
H._RecordConstructor_name>>: HaskellUtils.simpleName @@ var "lname'",
H._RecordConstructor_fields>>: var "hFields"],
H._ConstructorWithComments_comments>>: nothing],
"unionCons">: "g'" ~> "lname'" ~> "fieldType" ~> lets [
"fname">: Core.fieldTypeName $ var "fieldType",
"ftype">: Core.fieldTypeType $ var "fieldType",
"deconflict">: "name" ~> lets [
"tname">: Names.unqualifyName @@ record _QualifiedName [
_QualifiedName_namespace>>: just $ Pairs.first $ Module.namespacesFocus $ var "namespaces",
_QualifiedName_local>>: var "name"]] $
Logic.ifElse (Maybes.isJust $ Lists.find ("b" ~> Equality.equal (Core.bindingName (var "b")) (var "tname")) (Graph.graphElements $ var "g'"))
(var "deconflict" @@ Strings.cat2 (var "name") (string "_"))
(var "name")] $
"comments" <<~ Annotations.getTypeDescription @@ var "ftype" $ lets [
"nm">: var "deconflict" @@ Strings.cat2 (Formatting.capitalize @@ var "lname'") (Formatting.capitalize @@ (Core.unName $ var "fname"))] $
"typeList" <<~ (Logic.ifElse (Equality.equal (Rewriting.deannotateType @@ var "ftype") MetaTypes.unit)
(Flows.pure $ list ([] :: [TTerm H.CaseRhs])) $
Flows.bind (adaptTypeToHaskellAndEncode @@ var "namespaces" @@ var "ftype") $ "htype" ~>
Flows.pure $ list [var "htype"]) $
Flows.pure $ record H._ConstructorWithComments [
H._ConstructorWithComments_body>>: inject H._Constructor H._Constructor_ordinary $ record H._OrdinaryConstructor [
H._OrdinaryConstructor_name>>: HaskellUtils.simpleName @@ var "nm",
H._OrdinaryConstructor_fields>>: var "typeList"],
H._ConstructorWithComments_comments>>: var "comments"]] $
Monads.withTrace @@ (Strings.cat2 (string "type definition ") (Core.unName $ var "elementName")) @@ (
"g" <<~ Monads.getState $
"isSer" <<~ (Schemas.isSerializableByName @@ var "elementName") $ lets [
"deriv">: wrap H._Deriving $ Logic.ifElse (var "isSer")
(Lists.map (HaskellUtils.rawName) (list [string "Eq", string "Ord", string "Read", string "Show"]))
(list ([] :: [TTerm H.Name])),
"unpackResult">: HaskellUtils.unpackForallType @@ var "g" @@ var "typ",
"vars">: Pairs.first $ var "unpackResult",
"t'">: Pairs.second $ var "unpackResult",
"hd">: var "declHead" @@ var "hname" @@ (Lists.reverse $ var "vars")] $
"decl" <<~ (cases _Type (Rewriting.deannotateType @@ var "t'")
(Just $ "htype" <<~ (adaptTypeToHaskellAndEncode @@ var "namespaces" @@ var "typ") $
Flows.pure $ inject H._Declaration H._Declaration_type $ record H._TypeDeclaration [
H._TypeDeclaration_name>>: var "hd",
H._TypeDeclaration_type>>: var "htype"]) [
_Type_record>>: "rt" ~>
"cons" <<~ (var "recordCons" @@ var "lname" @@ (Core.rowTypeFields $ var "rt")) $
Flows.pure $ inject H._Declaration H._Declaration_data $ record H._DataDeclaration [
H._DataDeclaration_keyword>>: injectUnit H._DataOrNewtype H._DataOrNewtype_data,
H._DataDeclaration_context>>: list ([] :: [TTerm H.Assertion]),
H._DataDeclaration_head>>: var "hd",
H._DataDeclaration_constructors>>: list [var "cons"],
H._DataDeclaration_deriving>>: list [var "deriv"]],
_Type_union>>: "rt" ~>
"cons" <<~ Flows.mapList (var "unionCons" @@ var "g" @@ var "lname") (Core.rowTypeFields $ var "rt") $
Flows.pure $ inject H._Declaration H._Declaration_data $ record H._DataDeclaration [
H._DataDeclaration_keyword>>: injectUnit H._DataOrNewtype H._DataOrNewtype_data,
H._DataDeclaration_context>>: list ([] :: [TTerm H.Assertion]),
H._DataDeclaration_head>>: var "hd",
H._DataDeclaration_constructors>>: var "cons",
H._DataDeclaration_deriving>>: list [var "deriv"]],
_Type_wrap>>: "wrapped" ~> lets [
"wt">: Core.wrappedTypeBody $ var "wrapped"] $
"cons" <<~ var "newtypeCons" @@ var "elementName" @@ var "wt" $
Flows.pure $ inject H._Declaration H._Declaration_data $ record H._DataDeclaration [
H._DataDeclaration_keyword>>: injectUnit H._DataOrNewtype H._DataOrNewtype_newtype,
H._DataDeclaration_context>>: list ([] :: [TTerm H.Assertion]),
H._DataDeclaration_head>>: var "hd",
H._DataDeclaration_constructors>>: list [var "cons"],
H._DataDeclaration_deriving>>: list [var "deriv"]]]) $
"comments" <<~ Annotations.getTypeDescription @@ var "typ" $
"tdecls" <<~ (Logic.ifElse (includeTypeDefinitions)
(Flows.bind (typeDecl @@ var "namespaces" @@ var "elementName" @@ var "typ") $ "decl'" ~>
Flows.pure $ list [var "decl'"])
(Flows.pure $ list ([] :: [TTerm H.DeclarationWithComments]))) $ lets [
"mainDecl">: record H._DeclarationWithComments [
H._DeclarationWithComments_body>>: var "decl",
H._DeclarationWithComments_comments>>: var "comments"],
"nameDecls'">: nameDecls @@ var "g" @@ var "namespaces" @@ var "elementName" @@ var "typ"] $
Flows.pure $ Lists.concat $ list [list [var "mainDecl"], var "nameDecls'", var "tdecls"])
typeDecl :: TBinding (HaskellNamespaces -> Name -> Type -> Flow Graph H.DeclarationWithComments)
typeDecl = haskellCoderDefinition "typeDecl" $
doc "Generate a Haskell declaration for a type definition constant" $
"namespaces" ~> "name" ~> "typ" ~> lets [
"typeName">: "ns" ~> "name'" ~>
Names.qname @@ var "ns" @@ (var "typeNameLocal" @@ var "name'"),
"typeNameLocal">: "name'" ~>
Strings.cat $ list [string "_", Names.localNameOf @@ var "name'", string "_type_"],
"rawTerm">: encoderFor _Type @@ var "typ",
"rewrite">: "recurse" ~> "term" ~> lets [
"variantResult">: cases _Term (Rewriting.deannotateTerm @@ var "term")
(Just nothing) [
_Term_union>>: "inj" ~> Logic.ifElse (Equality.equal (Core.injectionTypeName $ var "inj") (Core.nameLift _Type))
(just $ Core.injectionField $ var "inj")
nothing],
"decodeString">: "term" ~> (cases _Term (Rewriting.deannotateTerm @@ var "term")
(Just nothing) [
_Term_literal>>: "lit" ~> cases _Literal (var "lit")
(Just nothing) [
_Literal_string>>: "s" ~> just (var "s")]]),
"decodeName">: "term" ~> (cases _Term (Rewriting.deannotateTerm @@ var "term")
(Just nothing) [
_Term_wrap>>: "wt" ~> Logic.ifElse (Equality.equal (Core.wrappedTermTypeName $ var "wt") (Core.nameLift _Name))
(Maybes.map (unaryFunction Core.name) $ var "decodeString" @@ (Core.wrappedTermBody $ var "wt"))
nothing]),
"forType">: "field" ~> lets [
"fname">: Core.fieldName $ var "field",
"fterm">: Core.fieldTerm $ var "field"] $
Logic.ifElse (Equality.equal (var "fname") $ Core.nameLift _Type_record)
nothing
(Logic.ifElse (Equality.equal (var "fname") $ Core.nameLift _Type_variable)
(Maybes.bind (var "decodeName" @@ var "fterm") (var "forVariableType"))
nothing),
"forVariableType">: "vname" ~> lets [
"qname">: Names.qualifyName @@ var "vname",
"mns">: Module.qualifiedNameNamespace $ var "qname",
"local">: Module.qualifiedNameLocal $ var "qname"] $
Maybes.map ("ns" ~> Core.termVariable $ Names.qname @@ var "ns" @@ (Strings.cat $ list [string "_", var "local", string "_type_"])) (var "mns")] $
Maybes.fromMaybe (var "recurse" @@ var "term") (Maybes.bind (var "variantResult") (var "forType")),
"finalTerm">: Rewriting.rewriteTerm @@ var "rewrite" @@ var "rawTerm"] $
-- Note: consider constructing this coder just once, then reusing it
"coder" <<~ AdaptModules.constructCoder @@ (HaskellLanguage.haskellLanguage) @@ (encodeTerm @@ var "namespaces") @@ (Core.typeVariable $ Core.nameLift _Type) $
"expr" <<~ Compute.coderEncode (var "coder") @@ var "finalTerm" $ lets [
"rhs">: wrap H._RightHandSide $ var "expr",
"hname">: HaskellUtils.simpleName @@ (var "typeNameLocal" @@ var "name"),
"pat">: HaskellUtils.applicationPattern @@ var "hname" @@ list ([] :: [TTerm H.Pattern]),
"decl">: inject H._Declaration H._Declaration_valueBinding $ inject H._ValueBinding H._ValueBinding_simple $ record H._SimpleValueBinding [
H._SimpleValueBinding_pattern>>: var "pat",
H._SimpleValueBinding_rhs>>: var "rhs",
H._SimpleValueBinding_localBindings>>: nothing]] $
Flows.pure $ record H._DeclarationWithComments [
H._DeclarationWithComments_body>>: var "decl",
H._DeclarationWithComments_comments>>: nothing]
-- | Convert TypeScheme constraints to the Map format used by encodeTypeWithClassAssertions.
-- TypeScheme constraints are Maybe (Map Name TypeVariableMetadata), where TypeVariableMetadata
-- has a 'classes' field of type Set Name. We convert this to Map Name (Set TypeClass).
typeSchemeConstraintsToClassMap :: TBinding (Maybe (M.Map Name TypeVariableMetadata) -> M.Map Name (S.Set TypeClass))
typeSchemeConstraintsToClassMap = haskellCoderDefinition "typeSchemeConstraintsToClassMap" $
doc "Convert type scheme constraints to a map of type variables to typeclasses" $
"maybeConstraints" ~> lets [
-- Convert a class name to a TypeClass, returning Nothing for unknown classes
"nameToTypeClass">: "className" ~> lets [
"classNameStr">: Core.unName $ var "className",
"isEq">: Equality.equal (var "classNameStr") (Core.unName $ Core.nameLift _TypeClass_equality),
"isOrd">: Equality.equal (var "classNameStr") (Core.unName $ Core.nameLift _TypeClass_ordering)] $
Logic.ifElse (var "isEq")
(just $ inject _TypeClass _TypeClass_equality unit)
(Logic.ifElse (var "isOrd")
(just $ inject _TypeClass _TypeClass_ordering unit)
nothing)] $
Maybes.maybe
Maps.empty
("constraints" ~>
Maps.map
("meta" ~> Sets.fromList $
Maybes.cat $ Lists.map (var "nameToTypeClass") $ Sets.toList $ Core.typeVariableMetadataClasses (var "meta"))
(var "constraints"))
(var "maybeConstraints")