If user code has a type alias (or custom type) called `Result` or
`Option` etc, this would be used instead of the intended standard
library types causing surprising compile errors from generated code.
Using the fully qualified path allows the generated code to be isolated
from user types.
Includes two basic regression tests covering `Result` and `Send`.
Fixes#1194
- set 1.62 Rust as MSRV
- use new fmt syntax where possible
- refactor `.to_owned()`, `.to_string()` and `.into()` usage
- rename `IntoResolvable::into()` as `IntoResolvable::into_resolvable()` to disambiguate with `Into::into()`
- use `#[derive(Default)]` for enums where possible
- use `bool::then_some()` where possible
- remove support for `#[graphql_interface(dyn)]`
- describe all interface trait methods with type's fields or impl block instead of `#[graphql_interface]` attribute on `impl Trait`
- forbid default impls on non-skipped trait methods
- support additional nullable arguments on implementer
- support returning sub-type on implementer
- preserve and reuse defined impl blocks in #[graphql_object] and #[graphql_subscription] macros expansion
- allow renaming `ScalarValue` type parameter in expanded code via `scalar = S: ScalarValue` syntax
Additionally:
- rename `rename` attribute's argument to `rename_all`
- support `rename_all` in #[graphql_interface] macro
- add associated type to IntoResolvable and IntoFieldResult traits allowing to name the GraphQLType being resolved
- relax Sized requirement on some IsInputType and IsOutputType impls
- generate always `::juniper::` crate path in proc macros and use `extern crate self` to make it work inside `juniper`
- add optional non-documented `internal` proc macro argument to proc macros, which allows double-underscored names and is used inside `juniper` only
- add object safe GraphQLValue, GraphQLValueAsync and GraphQLSubscriptionValue traits containing methods for value resolution
- refactor GraphQLType, GraphQLTypeAsync and GraphQLSubscriptionType traits to register and provide GraphQL type information only
- make GraphQLUnion trait generic over ScalarValue
- generate generic over ScalarValue impls of GraphQLUnion trait
- add codegen tests with a custom ScalarValue for union macros
- reimplement #[derive(GraphQLUnion)] macro to support:
- both structs and enums
- generics in type definition
- multiple #[graphql] attributes
- external resolver functions
- remove From trait impls generation for enum variants
- reimplement #[graphql_union] macro to support:
- traits
- generics in trait definition
- multiple attributes
- external resolver functions
- GraphQLType implemetation for a raw trait object
- GraphQLTypeAsync implemetation (#549)
- add marker::GraphQLUnion trait
- rewrite "2.5 Unions" section in Book (Juniper user documentation)
- rewrite `codegen` and `codegen_fail` integration tests for GraphQL unions
Additionally:
- re-export `futures` crate in `juniper` for convenient reuse in the generated code without requiring library user to provide `futures` crate by himself (#663)
- use unit type () as default context for EmptyMutation and EmptySubscriptions
- relax Sized trait bound on some GraphQLType and GraphQLTypeAsync definitions, implementations and usages
