Move related modules to Language.GraphQL.AST
Fixes #18. - `Language.GraphQL.Encoder` moved to `Language.GraphQL.AST.Encoder`. - `Language.GraphQL.Parser` moved to `Language.GraphQL.AST.Parser`. - `Language.GraphQL.Lexer` moved to `Language.GraphQL.AST.Lexer`. - All `Language.GraphQL.AST.Value` data constructor prefixes were removed. The module should be imported qualified. - All `Language.GraphQL.AST.Core.Value` data constructor prefixes were removed. The module should be imported qualified. - `Language.GraphQL.AST.Transform` is now isn't exposed publically anymore.
This commit is contained in:
@ -29,16 +29,15 @@ module Language.GraphQL.AST
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import Data.Int (Int32)
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import Data.List.NonEmpty (NonEmpty)
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import Data.Text (Text)
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import Language.GraphQL.AST.Core ( Alias
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, Name
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, TypeCondition
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)
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-- * Document
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-- | GraphQL document.
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type Document = NonEmpty Definition
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-- | Name
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type Name = Text
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-- | Directive.
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data Directive = Directive Name [Argument] deriving (Eq, Show)
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@ -82,12 +81,56 @@ data Selection
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-- * Field
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-- | GraphQL field.
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-- | Single GraphQL field.
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--
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-- The only required property of a field is its name. Optionally it can also
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-- have an alias, arguments or a list of subfields.
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--
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-- Given the following query:
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--
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-- @
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-- {
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-- zuck: user(id: 4) {
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-- id
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-- name
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-- }
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-- }
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-- @
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--
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-- * "user", "id" and "name" are field names.
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-- * "user" has two subfields, "id" and "name".
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-- * "zuck" is an alias for "user". "id" and "name" have no aliases.
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-- * "id: 4" is an argument for "name". "id" and "name don't have any
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-- arguments.
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data Field
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= Field (Maybe Alias) Name [Argument] [Directive] SelectionSetOpt
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deriving (Eq, Show)
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-- | Argument.
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-- | Alternative field name.
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--
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-- @
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-- {
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-- smallPic: profilePic(size: 64)
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-- bigPic: profilePic(size: 1024)
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-- }
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-- @
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--
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-- Here "smallPic" and "bigPic" are aliases for the same field, "profilePic",
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-- used to distinquish between profile pictures with different arguments
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-- (sizes).
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type Alias = Name
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-- | Single argument.
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--
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-- @
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-- {
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-- user(id: 4) {
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-- name
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-- }
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-- }
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-- @
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--
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-- Here "id" is an argument for the field "user" and its value is 4.
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data Argument = Argument Name Value deriving (Eq,Show)
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-- * Fragments
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@ -107,15 +150,15 @@ data FragmentDefinition
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-- * Inputs
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-- | Input value.
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data Value = ValueVariable Name
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| ValueInt Int32
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| ValueFloat Double
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| ValueString Text
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| ValueBoolean Bool
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| ValueNull
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| ValueEnum Name
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| ValueList [Value]
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| ValueObject [ObjectField]
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data Value = Variable Name
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| Int Int32
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| Float Double
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| String Text
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| Boolean Bool
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| Null
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| Enum Name
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| List [Value]
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| Object [ObjectField]
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deriving (Eq, Show)
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-- | Key-value pair.
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@ -127,13 +170,15 @@ data ObjectField = ObjectField Name Value deriving (Eq, Show)
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data VariableDefinition = VariableDefinition Name Type (Maybe Value)
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deriving (Eq, Show)
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-- | Type condition.
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type TypeCondition = Name
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-- | Type representation.
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data Type = TypeNamed Name
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| TypeList Type
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| TypeNonNull NonNullType
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deriving (Eq, Show)
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-- | Helper type to represent Non-Null types and lists of such types.
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data NonNullType = NonNullTypeNamed Name
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| NonNullTypeList Type
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@ -6,7 +6,6 @@ module Language.GraphQL.AST.Core
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, Field(..)
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, Fragment(..)
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, Name
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, ObjectField(..)
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, Operation(..)
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, Selection(..)
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, TypeCondition
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@ -14,12 +13,11 @@ module Language.GraphQL.AST.Core
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) where
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import Data.Int (Int32)
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import Data.HashMap.Strict (HashMap)
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import Data.List.NonEmpty (NonEmpty)
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import Data.String
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import Data.String (IsString(..))
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import Data.Text (Text)
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-- | Name
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type Name = Text
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import Language.GraphQL.AST (Alias, Name, TypeCondition)
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-- | GraphQL document is a non-empty list of operations.
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type Document = NonEmpty Operation
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@ -32,80 +30,12 @@ data Operation
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| Mutation (Maybe Text) (NonEmpty Selection)
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deriving (Eq, Show)
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-- | A single GraphQL field.
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--
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-- Only required property of a field, is its name. Optionally it can also have
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-- an alias, arguments or a list of subfields.
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--
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-- Given the following query:
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--
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-- @
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-- {
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-- zuck: user(id: 4) {
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-- id
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-- name
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-- }
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-- }
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-- @
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--
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-- * "user", "id" and "name" are field names.
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-- * "user" has two subfields, "id" and "name".
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-- * "zuck" is an alias for "user". "id" and "name" have no aliases.
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-- * "id: 4" is an argument for "name". "id" and "name don't have any
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-- arguments.
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-- | Single GraphQL field.
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data Field = Field (Maybe Alias) Name [Argument] [Selection] deriving (Eq, Show)
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-- | Alternative field name.
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--
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-- @
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-- {
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-- smallPic: profilePic(size: 64)
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-- bigPic: profilePic(size: 1024)
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-- }
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-- @
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--
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-- Here "smallPic" and "bigPic" are aliases for the same field, "profilePic",
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-- used to distinquish between profile pictures with different arguments
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-- (sizes).
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type Alias = Name
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-- | Single argument.
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--
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-- @
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-- {
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-- user(id: 4) {
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-- name
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-- }
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-- }
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-- @
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--
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-- Here "id" is an argument for the field "user" and its value is 4.
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data Argument = Argument Name Value deriving (Eq, Show)
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-- | Represents accordingly typed GraphQL values.
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data Value
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= ValueInt Int32
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-- GraphQL Float is double precision
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| ValueFloat Double
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| ValueString Text
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| ValueBoolean Bool
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| ValueNull
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| ValueEnum Name
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| ValueList [Value]
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| ValueObject [ObjectField]
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deriving (Eq, Show)
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instance IsString Value where
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fromString = ValueString . fromString
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-- | Key-value pair.
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--
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-- A list of 'ObjectField's represents a GraphQL object type.
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data ObjectField = ObjectField Name Value deriving (Eq, Show)
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-- | Type condition.
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type TypeCondition = Name
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-- | Represents fragments and inline fragments.
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data Fragment
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= Fragment TypeCondition (NonEmpty Selection)
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@ -116,3 +46,18 @@ data Selection
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= SelectionFragment Fragment
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| SelectionField Field
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deriving (Eq, Show)
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-- | Represents accordingly typed GraphQL values.
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data Value
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= Int Int32
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| Float Double -- ^ GraphQL Float is double precision
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| String Text
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| Boolean Bool
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| Null
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| Enum Name
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| List [Value]
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| Object (HashMap Name Value)
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deriving (Eq, Show)
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instance IsString Value where
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fromString = String . fromString
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@ -2,7 +2,7 @@
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{-# LANGUAGE ExplicitForAll #-}
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-- | This module defines a minifier and a printer for the @GraphQL@ language.
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module Language.GraphQL.Encoder
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module Language.GraphQL.AST.Encoder
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( Formatter
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, definition
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, directive
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@ -21,7 +21,7 @@ import qualified Data.Text.Lazy as Text.Lazy
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import Data.Text.Lazy.Builder (toLazyText)
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import Data.Text.Lazy.Builder.Int (decimal)
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import Data.Text.Lazy.Builder.RealFloat (realFloat)
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import Language.GraphQL.AST
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import qualified Language.GraphQL.AST as Full
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-- | Instructs the encoder whether a GraphQL should be minified or pretty
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-- printed.
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@ -40,7 +40,7 @@ minified :: Formatter
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minified = Minified
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-- | Converts a 'Document' into a string.
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document :: Formatter -> Document -> Text
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document :: Formatter -> Full.Document -> Text
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document formatter defs
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| Pretty _ <- formatter = Text.Lazy.intercalate "\n" encodeDocument
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| Minified <-formatter = Text.Lazy.snoc (mconcat encodeDocument) '\n'
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@ -48,29 +48,29 @@ document formatter defs
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encodeDocument = NonEmpty.toList $ definition formatter <$> defs
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-- | Converts a 'Definition' into a string.
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definition :: Formatter -> Definition -> Text
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definition :: Formatter -> Full.Definition -> Text
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definition formatter x
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| Pretty _ <- formatter = Text.Lazy.snoc (encodeDefinition x) '\n'
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| Minified <- formatter = encodeDefinition x
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where
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encodeDefinition (DefinitionOperation operation)
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encodeDefinition (Full.DefinitionOperation operation)
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= operationDefinition formatter operation
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encodeDefinition (DefinitionFragment fragment)
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encodeDefinition (Full.DefinitionFragment fragment)
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= fragmentDefinition formatter fragment
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operationDefinition :: Formatter -> OperationDefinition -> Text
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operationDefinition formatter (OperationSelectionSet sels)
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operationDefinition :: Formatter -> Full.OperationDefinition -> Text
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operationDefinition formatter (Full.OperationSelectionSet sels)
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= selectionSet formatter sels
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operationDefinition formatter (OperationDefinition Query name vars dirs sels)
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operationDefinition formatter (Full.OperationDefinition Full.Query name vars dirs sels)
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= "query " <> node formatter name vars dirs sels
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operationDefinition formatter (OperationDefinition Mutation name vars dirs sels)
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operationDefinition formatter (Full.OperationDefinition Full.Mutation name vars dirs sels)
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= "mutation " <> node formatter name vars dirs sels
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node :: Formatter
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-> Maybe Name
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-> [VariableDefinition]
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-> [Directive]
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-> SelectionSet
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-> Maybe Full.Name
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-> [Full.VariableDefinition]
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-> [Full.Directive]
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-> Full.SelectionSet
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-> Text
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node formatter name vars dirs sels
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= Text.Lazy.fromStrict (fold name)
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@ -79,39 +79,39 @@ node formatter name vars dirs sels
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<> eitherFormat formatter " " mempty
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<> selectionSet formatter sels
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variableDefinitions :: Formatter -> [VariableDefinition] -> Text
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variableDefinitions :: Formatter -> [Full.VariableDefinition] -> Text
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variableDefinitions formatter
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= parensCommas formatter $ variableDefinition formatter
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variableDefinition :: Formatter -> VariableDefinition -> Text
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variableDefinition formatter (VariableDefinition var ty dv)
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variableDefinition :: Formatter -> Full.VariableDefinition -> Text
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variableDefinition formatter (Full.VariableDefinition var ty dv)
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= variable var
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<> eitherFormat formatter ": " ":"
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<> type' ty
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<> maybe mempty (defaultValue formatter) dv
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defaultValue :: Formatter -> Value -> Text
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defaultValue :: Formatter -> Full.Value -> Text
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defaultValue formatter val
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= eitherFormat formatter " = " "="
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<> value formatter val
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variable :: Name -> Text
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variable :: Full.Name -> Text
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variable var = "$" <> Text.Lazy.fromStrict var
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selectionSet :: Formatter -> SelectionSet -> Text
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selectionSet :: Formatter -> Full.SelectionSet -> Text
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selectionSet formatter
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= bracesList formatter (selection formatter)
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. NonEmpty.toList
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selectionSetOpt :: Formatter -> SelectionSetOpt -> Text
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selectionSetOpt :: Formatter -> Full.SelectionSetOpt -> Text
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selectionSetOpt formatter = bracesList formatter $ selection formatter
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selection :: Formatter -> Selection -> Text
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selection :: Formatter -> Full.Selection -> Text
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selection formatter = Text.Lazy.append indent . f
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where
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f (SelectionField x) = field incrementIndent x
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f (SelectionInlineFragment x) = inlineFragment incrementIndent x
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f (SelectionFragmentSpread x) = fragmentSpread incrementIndent x
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f (Full.SelectionField x) = field incrementIndent x
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f (Full.SelectionInlineFragment x) = inlineFragment incrementIndent x
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f (Full.SelectionFragmentSpread x) = fragmentSpread incrementIndent x
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incrementIndent
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| Pretty n <- formatter = Pretty $ n + 1
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| otherwise = Minified
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@ -119,8 +119,8 @@ selection formatter = Text.Lazy.append indent . f
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| Pretty n <- formatter = Text.Lazy.replicate (fromIntegral $ n + 1) " "
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| otherwise = mempty
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field :: Formatter -> Field -> Text
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field formatter (Field alias name args dirs selso)
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field :: Formatter -> Full.Field -> Text
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field formatter (Full.Field alias name args dirs selso)
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= optempty (`Text.Lazy.append` colon) (Text.Lazy.fromStrict $ fold alias)
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<> Text.Lazy.fromStrict name
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<> optempty (arguments formatter) args
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@ -132,31 +132,31 @@ field formatter (Field alias name args dirs selso)
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| null selso = mempty
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| otherwise = eitherFormat formatter " " mempty <> selectionSetOpt formatter selso
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arguments :: Formatter -> [Argument] -> Text
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arguments :: Formatter -> [Full.Argument] -> Text
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arguments formatter = parensCommas formatter $ argument formatter
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argument :: Formatter -> Argument -> Text
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argument formatter (Argument name v)
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argument :: Formatter -> Full.Argument -> Text
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argument formatter (Full.Argument name v)
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= Text.Lazy.fromStrict name
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<> eitherFormat formatter ": " ":"
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<> value formatter v
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-- * Fragments
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fragmentSpread :: Formatter -> FragmentSpread -> Text
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fragmentSpread formatter (FragmentSpread name ds)
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fragmentSpread :: Formatter -> Full.FragmentSpread -> Text
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fragmentSpread formatter (Full.FragmentSpread name ds)
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= "..." <> Text.Lazy.fromStrict name <> optempty (directives formatter) ds
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inlineFragment :: Formatter -> InlineFragment -> Text
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inlineFragment formatter (InlineFragment tc dirs sels)
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inlineFragment :: Formatter -> Full.InlineFragment -> Text
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inlineFragment formatter (Full.InlineFragment tc dirs sels)
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= "... on "
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<> Text.Lazy.fromStrict (fold tc)
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<> directives formatter dirs
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<> eitherFormat formatter " " mempty
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<> selectionSet formatter sels
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fragmentDefinition :: Formatter -> FragmentDefinition -> Text
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fragmentDefinition formatter (FragmentDefinition name tc dirs sels)
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fragmentDefinition :: Formatter -> Full.FragmentDefinition -> Text
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fragmentDefinition formatter (Full.FragmentDefinition name tc dirs sels)
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= "fragment " <> Text.Lazy.fromStrict name
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<> " on " <> Text.Lazy.fromStrict tc
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<> optempty (directives formatter) dirs
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@ -166,25 +166,25 @@ fragmentDefinition formatter (FragmentDefinition name tc dirs sels)
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-- * Miscellaneous
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-- | Converts a 'Directive' into a string.
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directive :: Formatter -> Directive -> Text
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directive formatter (Directive name args)
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directive :: Formatter -> Full.Directive -> Text
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directive formatter (Full.Directive name args)
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= "@" <> Text.Lazy.fromStrict name <> optempty (arguments formatter) args
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directives :: Formatter -> [Directive] -> Text
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directives :: Formatter -> [Full.Directive] -> Text
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directives formatter@(Pretty _) = Text.Lazy.cons ' ' . spaces (directive formatter)
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directives Minified = spaces (directive Minified)
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-- | Converts a 'Value' into a string.
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value :: Formatter -> Value -> Text
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value _ (ValueVariable x) = variable x
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value _ (ValueInt x) = toLazyText $ decimal x
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value _ (ValueFloat x) = toLazyText $ realFloat x
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value _ (ValueBoolean x) = booleanValue x
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value _ ValueNull = mempty
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value _ (ValueString x) = stringValue $ Text.Lazy.fromStrict x
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value _ (ValueEnum x) = Text.Lazy.fromStrict x
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value formatter (ValueList x) = listValue formatter x
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value formatter (ValueObject x) = objectValue formatter x
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value :: Formatter -> Full.Value -> Text
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value _ (Full.Variable x) = variable x
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value _ (Full.Int x) = toLazyText $ decimal x
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value _ (Full.Float x) = toLazyText $ realFloat x
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value _ (Full.Boolean x) = booleanValue x
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value _ Full.Null = mempty
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value _ (Full.String x) = stringValue $ Text.Lazy.fromStrict x
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value _ (Full.Enum x) = Text.Lazy.fromStrict x
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value formatter (Full.List x) = listValue formatter x
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value formatter (Full.Object x) = objectValue formatter x
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booleanValue :: Bool -> Text
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booleanValue True = "true"
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@ -196,10 +196,10 @@ stringValue
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. Text.Lazy.replace "\"" "\\\""
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. Text.Lazy.replace "\\" "\\\\"
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listValue :: Formatter -> [Value] -> Text
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listValue :: Formatter -> [Full.Value] -> Text
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listValue formatter = bracketsCommas formatter $ value formatter
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objectValue :: Formatter -> [ObjectField] -> Text
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objectValue :: Formatter -> [Full.ObjectField] -> Text
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objectValue formatter = intercalate $ objectField formatter
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where
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intercalate f
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@ -208,8 +208,8 @@ objectValue formatter = intercalate $ objectField formatter
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. fmap f
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objectField :: Formatter -> ObjectField -> Text
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objectField formatter (ObjectField name v)
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objectField :: Formatter -> Full.ObjectField -> Text
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objectField formatter (Full.ObjectField name v)
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= Text.Lazy.fromStrict name <> colon <> value formatter v
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where
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colon
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@ -217,17 +217,17 @@ objectField formatter (ObjectField name v)
|
||||
| Minified <- formatter = ":"
|
||||
|
||||
-- | Converts a 'Type' a type into a string.
|
||||
type' :: Type -> Text
|
||||
type' (TypeNamed x) = Text.Lazy.fromStrict x
|
||||
type' (TypeList x) = listType x
|
||||
type' (TypeNonNull x) = nonNullType x
|
||||
type' :: Full.Type -> Text
|
||||
type' (Full.TypeNamed x) = Text.Lazy.fromStrict x
|
||||
type' (Full.TypeList x) = listType x
|
||||
type' (Full.TypeNonNull x) = nonNullType x
|
||||
|
||||
listType :: Type -> Text
|
||||
listType :: Full.Type -> Text
|
||||
listType x = brackets (type' x)
|
||||
|
||||
nonNullType :: NonNullType -> Text
|
||||
nonNullType (NonNullTypeNamed x) = Text.Lazy.fromStrict x <> "!"
|
||||
nonNullType (NonNullTypeList x) = listType x <> "!"
|
||||
nonNullType :: Full.NonNullType -> Text
|
||||
nonNullType (Full.NonNullTypeNamed x) = Text.Lazy.fromStrict x <> "!"
|
||||
nonNullType (Full.NonNullTypeList x) = listType x <> "!"
|
||||
|
||||
-- * Internal
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
|
||||
-- | This module defines a bunch of small parsers used to parse individual
|
||||
-- lexemes.
|
||||
module Language.GraphQL.Lexer
|
||||
module Language.GraphQL.AST.Lexer
|
||||
( Parser
|
||||
, amp
|
||||
, at
|
||||
@ -2,7 +2,7 @@
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
|
||||
-- | @GraphQL@ document parser.
|
||||
module Language.GraphQL.Parser
|
||||
module Language.GraphQL.AST.Parser
|
||||
( document
|
||||
) where
|
||||
|
||||
@ -11,7 +11,7 @@ import Control.Applicative ( Alternative(..)
|
||||
)
|
||||
import Data.List.NonEmpty (NonEmpty(..))
|
||||
import Language.GraphQL.AST
|
||||
import Language.GraphQL.Lexer
|
||||
import Language.GraphQL.AST.Lexer
|
||||
import Text.Megaparsec ( lookAhead
|
||||
, option
|
||||
, try
|
||||
@ -105,16 +105,16 @@ typeCondition = symbol "on" *> name
|
||||
-- * Input Values
|
||||
|
||||
value :: Parser Value
|
||||
value = ValueVariable <$> variable
|
||||
<|> ValueFloat <$> try float
|
||||
<|> ValueInt <$> integer
|
||||
<|> ValueBoolean <$> booleanValue
|
||||
<|> ValueNull <$ symbol "null"
|
||||
<|> ValueString <$> blockString
|
||||
<|> ValueString <$> string
|
||||
<|> ValueEnum <$> try enumValue
|
||||
<|> ValueList <$> listValue
|
||||
<|> ValueObject <$> objectValue
|
||||
value = Variable <$> variable
|
||||
<|> Float <$> try float
|
||||
<|> Int <$> integer
|
||||
<|> Boolean <$> booleanValue
|
||||
<|> Null <$ symbol "null"
|
||||
<|> String <$> blockString
|
||||
<|> String <$> string
|
||||
<|> Enum <$> try enumValue
|
||||
<|> List <$> listValue
|
||||
<|> Object <$> objectValue
|
||||
<?> "value error!"
|
||||
where
|
||||
booleanValue :: Parser Bool
|
||||
@ -1,3 +1,5 @@
|
||||
{-# LANGUAGE TupleSections #-}
|
||||
|
||||
-- | After the document is parsed, before getting executed the AST is
|
||||
-- transformed into a similar, simpler AST. This module is responsible for
|
||||
-- this transformation.
|
||||
@ -113,20 +115,20 @@ argument :: Schema.Subs -> Full.Argument -> Maybe Core.Argument
|
||||
argument subs (Full.Argument n v) = Core.Argument n <$> value subs v
|
||||
|
||||
value :: Schema.Subs -> Full.Value -> Maybe Core.Value
|
||||
value subs (Full.ValueVariable n) = subs n
|
||||
value _ (Full.ValueInt i) = pure $ Core.ValueInt i
|
||||
value _ (Full.ValueFloat f) = pure $ Core.ValueFloat f
|
||||
value _ (Full.ValueString x) = pure $ Core.ValueString x
|
||||
value _ (Full.ValueBoolean b) = pure $ Core.ValueBoolean b
|
||||
value _ Full.ValueNull = pure Core.ValueNull
|
||||
value _ (Full.ValueEnum e) = pure $ Core.ValueEnum e
|
||||
value subs (Full.ValueList l) =
|
||||
Core.ValueList <$> traverse (value subs) l
|
||||
value subs (Full.ValueObject o) =
|
||||
Core.ValueObject <$> traverse (objectField subs) o
|
||||
value subs (Full.Variable n) = subs n
|
||||
value _ (Full.Int i) = pure $ Core.Int i
|
||||
value _ (Full.Float f) = pure $ Core.Float f
|
||||
value _ (Full.String x) = pure $ Core.String x
|
||||
value _ (Full.Boolean b) = pure $ Core.Boolean b
|
||||
value _ Full.Null = pure Core.Null
|
||||
value _ (Full.Enum e) = pure $ Core.Enum e
|
||||
value subs (Full.List l) =
|
||||
Core.List <$> traverse (value subs) l
|
||||
value subs (Full.Object o) =
|
||||
Core.Object . HashMap.fromList <$> traverse (objectField subs) o
|
||||
|
||||
objectField :: Schema.Subs -> Full.ObjectField -> Maybe Core.ObjectField
|
||||
objectField subs (Full.ObjectField n v) = Core.ObjectField n <$> value subs v
|
||||
objectField :: Schema.Subs -> Full.ObjectField -> Maybe (Core.Name, Core.Value)
|
||||
objectField subs (Full.ObjectField n v) = (n,) <$> value subs v
|
||||
|
||||
appendSelectionOpt ::
|
||||
Traversable t =>
|
||||
|
||||
@ -30,10 +30,10 @@ import Data.HashMap.Strict (HashMap)
|
||||
import qualified Data.HashMap.Strict as HashMap
|
||||
import Data.Text (Text)
|
||||
import qualified Data.Text as T
|
||||
import Language.GraphQL.AST.Core
|
||||
import Language.GraphQL.Error
|
||||
import Language.GraphQL.Trans
|
||||
import Language.GraphQL.Type
|
||||
import Language.GraphQL.AST.Core
|
||||
import qualified Language.GraphQL.Type as Type
|
||||
|
||||
-- | Resolves a 'Field' into an @Aeson.@'Data.Aeson.Types.Object' with error
|
||||
-- information (if an error has occurred). @m@ is usually expected to be an
|
||||
@ -58,7 +58,7 @@ objectA name f = Resolver name $ resolveFieldValue f resolveRight
|
||||
|
||||
-- | Like 'object' but also taking 'Argument's and can be null or a list of objects.
|
||||
wrappedObjectA :: MonadIO m
|
||||
=> Name -> ([Argument] -> ActionT m (Wrapping [Resolver m])) -> Resolver m
|
||||
=> Name -> ([Argument] -> ActionT m (Type.Wrapping [Resolver m])) -> Resolver m
|
||||
wrappedObjectA name f = Resolver name $ resolveFieldValue f resolveRight
|
||||
where
|
||||
resolveRight fld@(Field _ _ _ sels) resolver
|
||||
@ -66,7 +66,7 @@ wrappedObjectA name f = Resolver name $ resolveFieldValue f resolveRight
|
||||
|
||||
-- | Like 'object' but can be null or a list of objects.
|
||||
wrappedObject :: MonadIO m
|
||||
=> Name -> ActionT m (Wrapping [Resolver m]) -> Resolver m
|
||||
=> Name -> ActionT m (Type.Wrapping [Resolver m]) -> Resolver m
|
||||
wrappedObject name = wrappedObjectA name . const
|
||||
|
||||
-- | A scalar represents a primitive value, like a string or an integer.
|
||||
@ -80,19 +80,19 @@ scalarA name f = Resolver name $ resolveFieldValue f resolveRight
|
||||
where
|
||||
resolveRight fld result = withField (return result) fld
|
||||
|
||||
-- | Lika 'scalar' but also taking 'Argument's and can be null or a list of scalars.
|
||||
-- | Like 'scalar' but also taking 'Argument's and can be null or a list of scalars.
|
||||
wrappedScalarA :: (MonadIO m, Aeson.ToJSON a)
|
||||
=> Name -> ([Argument] -> ActionT m (Wrapping a)) -> Resolver m
|
||||
=> Name -> ([Argument] -> ActionT m (Type.Wrapping a)) -> Resolver m
|
||||
wrappedScalarA name f = Resolver name $ resolveFieldValue f resolveRight
|
||||
where
|
||||
resolveRight fld (Named result) = withField (return result) fld
|
||||
resolveRight fld Null
|
||||
resolveRight fld (Type.Named result) = withField (return result) fld
|
||||
resolveRight fld Type.Null
|
||||
= return $ HashMap.singleton (aliasOrName fld) Aeson.Null
|
||||
resolveRight fld (List result) = withField (return result) fld
|
||||
resolveRight fld (Type.List result) = withField (return result) fld
|
||||
|
||||
-- | Like 'scalar' but can be null or a list of scalars.
|
||||
wrappedScalar :: (MonadIO m, Aeson.ToJSON a)
|
||||
=> Name -> ActionT m (Wrapping a) -> Resolver m
|
||||
=> Name -> ActionT m (Type.Wrapping a) -> Resolver m
|
||||
wrappedScalar name = wrappedScalarA name . const
|
||||
|
||||
resolveFieldValue :: MonadIO m
|
||||
|
||||
@ -1,11 +1,9 @@
|
||||
-- | Definitions for @GraphQL@ type system.
|
||||
-- | Definitions for @GraphQL@ input types.
|
||||
module Language.GraphQL.Type
|
||||
( Wrapping(..)
|
||||
) where
|
||||
|
||||
import Data.Aeson as Aeson ( ToJSON
|
||||
, toJSON
|
||||
)
|
||||
import Data.Aeson as Aeson (ToJSON, toJSON)
|
||||
import qualified Data.Aeson as Aeson
|
||||
|
||||
-- | GraphQL distinguishes between "wrapping" and "named" types. Each wrapping
|
||||
|
||||
Reference in New Issue
Block a user