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Add decorations processing (finos#99)
* First commit for decorations * Add support for `inlining`
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| module Morphir.Snowpark.Customization exposing (CustomizationOptions, loadCustomizationOptions, emptyCustomizationOptions, generateCacheCode, tryToApplyPostConversionCustomization) | ||
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| import Morphir.IR.FQName exposing (FQName) | ||
| import Set exposing (Set) | ||
| import Morphir.Scala.AST as Scala exposing (ImportName(..)) | ||
| import Json.Decode as Decode exposing (Decoder) | ||
| import Morphir.IR.Decoration.Codec exposing (decodeNodeIDByValuePairs) | ||
| import Morphir.SDK.Dict as SDKDict | ||
| import Morphir.IR.NodeId exposing (NodeID) | ||
| import Morphir.IR.NodeId exposing (NodeID(..)) | ||
| import Json.Decode exposing (decodeString) | ||
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| type alias CustomizationOptions = | ||
| { functionsToInline: Set FQName | ||
| , functionsToCache: Set FQName | ||
| } | ||
|
|
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| emptyCustomizationOptions : CustomizationOptions | ||
| emptyCustomizationOptions = CustomizationOptions Set.empty Set.empty | ||
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| loadCustomizationOptions : SDKDict.Dict NodeID Decode.Value -> CustomizationOptions | ||
| loadCustomizationOptions optionsDict = | ||
| let | ||
| decodeFirstElementAsString = | ||
| Decode.decodeValue (Decode.index 0 Decode.string) | ||
| optsList = | ||
| optionsDict | ||
| |> SDKDict.toList | ||
| functions = | ||
| optsList | ||
| |> List.filterMap (\(id, value) -> | ||
| case id of | ||
| ValueID fullName _ -> Just (fullName, value) | ||
| _ -> Nothing) | ||
| (functionsToCache, valuesToInline) = | ||
| functions | ||
| |> List.foldr | ||
| (\(fullName, valueDec) ((toCache, toInline) as current) -> | ||
| case decodeFirstElementAsString valueDec of | ||
| Ok "cacheResult" -> | ||
| (Set.insert fullName toCache, toInline) | ||
| Ok "inlineElement" -> | ||
| (toCache, Set.insert fullName toInline) | ||
| _ -> | ||
| current) | ||
| (Set.empty, Set.empty) | ||
| in | ||
| { functionsToInline = valuesToInline | ||
| , functionsToCache = functionsToCache | ||
| } | ||
|
|
||
| generateCacheCode : String -> Scala.MemberDecl -> Maybe Scala.Type -> Scala.MemberDecl | ||
| generateCacheCode cacheName decl returnType = | ||
| case decl of | ||
| Scala.FunctionDecl funcInfo -> | ||
| let | ||
| funcArgs = | ||
| funcInfo.args |> List.concatMap (\t -> t |> List.map (\t2 -> Scala.Variable t2.name)) | ||
| body = | ||
| Maybe.withDefault (Scala.Variable "_") funcInfo.body | ||
| expressionToCache = | ||
| case returnType of | ||
| Just (Scala.TypeRef _ "DataFrame") -> | ||
| Scala.Select body "cacheResult" | ||
| _ -> | ||
| body | ||
| getOrElseUpdateCall = | ||
| Scala.Apply (Scala.Ref [cacheName] "getOrElseUpdate") | ||
| [ Scala.ArgValue Nothing (Scala.Tuple funcArgs) | ||
| , Scala.ArgValue Nothing expressionToCache | ||
| ] | ||
| in | ||
| Scala.FunctionDecl { funcInfo | body = Just getOrElseUpdateCall } | ||
| _ -> | ||
| decl | ||
|
|
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| tryToApplyPostConversionCustomization : FQName -> Scala.MemberDecl -> CustomizationOptions -> Maybe (List Scala.MemberDecl , List Scala.ImportDecl) | ||
| tryToApplyPostConversionCustomization fullFunctionName mappedFunction customizationOptions = | ||
| case (Set.member fullFunctionName customizationOptions.functionsToCache , mappedFunction) of | ||
| (True, Scala.FunctionDecl funcInfo) -> | ||
| Just ( | ||
| [ generateCacheCode (funcInfo.name ++ "Cache") mappedFunction funcInfo.returnType, | ||
| Scala.ValueDecl | ||
| { modifiers = [] | ||
| , pattern = Scala.NamedMatch (funcInfo.name ++ "Cache") | ||
| , valueType = Just (Scala.TypeApply | ||
| (Scala.TypeRef [ "scala", "collection", "concurrent" ] "Map") | ||
| [ Scala.TupleType (funcInfo.args |> List.concatMap (\t -> t |> List.map (\t2 -> t2.tpe) )) , Maybe.withDefault (Scala.TypeVar "_") funcInfo.returnType ] ) | ||
| , value = | ||
| Scala.Select (Scala.New [ "java", "util", "concurrent" ] "ConcurrentHashMap" []) "asScala" | ||
| } | ||
| ], | ||
| [ Scala.ImportDecl False [ "scala", "collection", "JavaConverters", "_"] [] ] ) | ||
| _ -> | ||
| if Set.member fullFunctionName customizationOptions.functionsToInline then | ||
| Just ([], []) | ||
| else | ||
| Nothing |
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