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graphql/CHANGELOG.md

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# Changelog
All notable changes to this project will be documented in this file.
The format is based on
[Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to
[Haskell Package Versioning Policy](https://pvp.haskell.org/).
## [Unreleased]
### Added
- AST for the GraphQL schema.
- `Trans.argument`.
### Changed
- Rename `AST.Definition` into `AST.Document.ExecutableDefinition`.
`AST.Document.TypeSystemDefinition` and `AST.Document.TypeSystemExtension`
can also be definitions.
- Move all AST data to `AST.Document` and reexport them.
- Rename `AST.OperationSelectionSet` to `AST.Document.SelectionSet`.
- Make `Schema.Subs` a `Data.HashMap.Strict` (was a function
`key -> Maybe value` before).
### Removed
- `AST.Field`, `AST.InlineFragment` and `AST.FragmentSpread`.
These types are only used in `AST.Selection` and `AST.Selection` contains now
3 corresponding data constructors, `Field`, `InlineFragment` and
`FragmentSpread`, instead of separate types. It simplifies pattern matching
and doesn't make the code less typesafe.
- `Schema.scalarA`.
- `Schema.wrappedScalarA`.
- `Schema.wrappedObjectA`.
- `Schema.objectA`.
- `AST.Argument`. Replaced with `AST.Arguments` which holds all arguments as a
key/value map.
## [0.6.1.0] - 2019-12-23
### Fixed
- Parsing multiple string arguments, such as
`login(username: "username", password: "password")` would fail on the comma
due to strings not having a space consumer.
- Fragment spread is evaluated based on the `__typename` resolver. If the
resolver is missing, it is assumed that the type condition is satisfied (all
fragments are included).
- Escaping characters during encoding.
### Added
- Directive support (@skip and @include).
- Pretifying multi-line string arguments as block strings.
## [0.6.0.0] - 2019-11-27
### Changed
- `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.Core.Object` is now just a HashMap.
- `Language.GraphQL.AST.Transform` is isn't exposed publically anymore.
- `Language.GraphQL.Schema.resolve` accepts a selection `Seq` (`Data.Sequence`)
instead of a list. Selections are stored as sequences internally as well.
- Add a reader instance to the resolver's monad stack. The Reader contains
a Name/Value hashmap, which will contain resolver arguments.
### Added
- Nested fragment support.
### Fixed
- Consume ignored tokens after `$` and `!`. I mistakenly assumed that
`$variable` is a single token, same as `Type!` is a single token. This is not
the case, for example `Variable` is defined as `$ Name`, so these are two
tokens, therefore whitespaces and commas after `$` and `!` should be
consumed.
### Improved
- `Language.GraphQL.AST.Parser.type_`: Try type parsers in a variable
definition in a different order to avoid using `but`.
### Removed
- `Language.GraphQL.AST.Arguments`. Use `[Language.GraphQL.AST.Argument]`
instead.
- `Language.GraphQL.AST.Directives`. Use `[Language.GraphQL.AST.Directives]`
instead.
- `Language.GraphQL.AST.VariableDefinitions`. Use
`[Language.GraphQL.AST.VariableDefinition]` instead.
- `Language.GraphQL.AST.FragmentName`. Use `Language.GraphQL.AST.Name` instead.
- `Language.GraphQL.Execute.Schema` - It was a resolver list, not a schema.
- `Language.GraphQL.Schema`: `enum`, `enumA`, `wrappedEnum` and `wrappedEnumA`.
Use `scalar`, `scalarA`, `wrappedScalar` and `wrappedScalarA` instead.
## [0.5.1.0] - 2019-10-22
### Deprecated
- `Language.GraphQL.AST.Arguments`. Use `[Language.GraphQL.AST.Argument]`
instead.
- `Language.GraphQL.AST.Directives`. Use `[Language.GraphQL.AST.Directives]`
instead.
- `Language.GraphQL.AST.VariableDefinitions`. Use
`[Language.GraphQL.AST.VariableDefinition]` instead.
### Added
- Module documentation.
- Inline fragment support.
### Fixed
- Top-level fragments.
- Fragment for execution is chosen based on the type.
## [0.5.0.1] - 2019-09-10
### Added
- Minimal documentation for all public symbols.
### Deprecated
- `Language.GraphQL.AST.FragmentName`. Replaced with Language.GraphQL.AST.Name.
- `Language.GraphQL.Execute.Schema` - It is not a schema (at least not a
complete one), but a resolver list, and the resolvers should be provided by
the user separately, because the schema can originate from a GraphQL
document. `Schema` name should be free to provide a data type for the real
schema later.
- `Language.GraphQL.Schema`: `enum`, `enumA`, `wrappedEnum` and `wrappedEnumA`.
There are actually only two generic types in GraphQL: Scalars and objects.
Enum is a scalar value.
### Fixed
- Parsing block string values.
## [0.5.0.0] - 2019-08-14
### Added
- `executeWithName` executes an operation with the given name.
- Export `Language.GraphQL.Encoder.definition`,
`Language.GraphQL.Encoder.type'` and `Language.GraphQL.Encoder.directive`.
- Export `Language.GraphQL.Encoder.value`. Escapes \ and " in strings now.
### Changed
- `Operation` includes now possible operation name which allows to support
documents with multiple operations.
- `Language.GraphQL.Encoder.document` and other encoding functions take a
`Formatter` as argument to distinguish between minified and pretty printing.
- All encoder functions return `Data.Text.Lazy`.
### Removed
- Unused `Language.GraphQL.Encoder.spaced`.
## [0.4.0.0] - 2019-07-23
### Added
- Support for mutations.
- Error handling (with monad transformers).
- Nullable types.
- Arbitrary nested lists support.
- Potential BOM header parsing.
### Changed
- attoparsec is replaced with megaparsec.
- The library is now under `Language.GraphQL` (instead of `Data.GraphQL`).
- HUnit and tasty are replaced with Hspec.
- `Alternative`/`MonadPlus` resolver constraints are replaced with `MonadIO`.
### Removed
- Duplicates from `Language.GraphQL.AST` already available in
`Language.GraphQL.AST.Core`.
- All module exports are now explicit, so private and help functions aren't
exported anymore.
## [0.3] - 2015-09-22
### Changed
- Exact match numeric types to spec.
- Names follow now the spec.
- AST slightly different for better readability or easier parsing.
- Replace golden test for test to validate parsing/encoding.
### Added
- Parsing errors in all cases where `Alternative` is used.
- GraphQL encoder.
### Fixed
- Expect braces `inputValueDefinitions` instead of parens when parsing.
## [0.2.1] - 2015-09-16
### Fixed
- Include data files for golden tests in Cabal package.
- Support for ghc-7.8.
## [0.2] - 2015-09-14
### Added
- Rudimentary parser for `GraphQL` which successfully parses the sample file
`kitchen-sink.graphql` from `graphql-js` tests.
- Golden test for `kitchen-sink.grahql` parsing.
### Changed
- Many optional data types in `GraphQl` didn't need to be wrapped in a `Maybe`.
- Some `newtype`s became type synonyms for easier parsing.
## 0.1 - 2015-09-12
### Added
- Data types for the GraphQL language.
[Unreleased]: https://github.com/caraus-ecms/graphql/compare/v0.6.1.0...HEAD
[0.6.1.0]: https://github.com/caraus-ecms/graphql/compare/v0.6.0.0...v0.6.1.0
[0.6.0.0]: https://github.com/caraus-ecms/graphql/compare/v0.5.1.0...v0.6.0.0
[0.5.1.0]: https://github.com/caraus-ecms/graphql/compare/v0.5.0.1...v0.5.1.0
[0.5.0.1]: https://github.com/caraus-ecms/graphql/compare/v0.5.0.0...v0.5.0.1
[0.5.0.0]: https://github.com/caraus-ecms/graphql/compare/v0.4.0.0...v0.5.0.0
[0.4.0.0]: https://github.com/caraus-ecms/graphql/compare/v0.3...v0.4.0.0
[0.3]: https://github.com/caraus-ecms/graphql/compare/v0.2.1...v0.3
[0.2.1]: https://github.com/caraus-ecms/graphql/compare/v0.2...v0.2.1
[0.2]: https://github.com/caraus-ecms/graphql/compare/v0.1...v0.2
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