Types ReasonML类型与相同类型不匹配
即使我在ReasonML中使用了相同的类型,我也收到了类型不匹配。错误是:Types ReasonML类型与相同类型不匹配,types,ocaml,functor,reason,bucklescript,Types,Ocaml,Functor,Reason,Bucklescript,即使我在ReasonML中使用了相同的类型,我也收到了类型不匹配。错误是: [1] We've found a bug for you! [1] /Users/gt/work/real-and-open/frontend/src/domain/classroom/views/RosterLayoutHeader.re 42:10-70 [1] [1] 40 ┆ <Classroom.Mutation.AddStudent> [1] 41 ┆ ...{ [1]
[1] We've found a bug for you!
[1] /Users/gt/work/real-and-open/frontend/src/domain/classroom/views/RosterLayoutHeader.re 42:10-70
[1]
[1] 40 ┆ <Classroom.Mutation.AddStudent>
[1] 41 ┆ ...{
[1] 42 ┆ (addStudent: (~id: UUID.t, ~classroomId: UUID.t, unit) => unit) =>
[1] {
[1] 43 ┆ <div>
[1] 44 ┆ <StudentRowHeader
[1]
[1] This pattern matches values of type
[1] (~id: UUID.t, ~classroomId: UUID.t, unit) => unit
[1] but a pattern was expected which matches values of type
[1] AddStudent.ContainerMutation.mutationFunctionType (defined as
[1] AddStudent.MutationInternals.mutationFunctionType)
在代码中,AddStudent如下所示:
[@bs.config {jsx: 3}];
module Mutation = [%graphql
{|
mutation addStudent($id: ID!, $classroomId: ID!) {
addStudent(student: {id: $id, classroomId: $classroomId}){
...Classroom_Model.Fragment.ClassroomFields
}
}
|}
];
module MutationInternals : ApolloMutation.MutationInternal = {
type mutationFunctionType = (~id: UUID.t, ~classroomId: UUID.t, unit) => unit;
let componentName = "AddStudent";
module Config = Mutation;
module InternalMutation = ReasonApollo.CreateMutation(Config);
let callMutationWithApollo = (apolloMutation : ApolloMutation.apolloMutationType(Config.t)) =>
((~id: UUID.t, ~classroomId: UUID.t, ()): unit => {
let newStudent = Config.make(~id, ~classroomId, ());
apolloMutation(
~variables=newStudent##variables,
// ~refetchQueries=[|"member"|],
// ~optimisticResponse=Config.t,
(),
) |> ignore;
() |> ignore;
}: mutationFunctionType);
};
module ContainerMutation = ApolloMutation.CreateMutationContainer(MutationInternals);
module Jsx2 = ContainerMutation.Jsx2;
let make = ContainerMutation.make;
所以请注意三件事
1) 类型:type mutationFunctionType=(~id:UUID.t,~classroomId:UUID.t,unit)=>unit此处引用了code>,错误中显示AddStudent.MutationInternals.mutationFunctionType
与(~id:UUID.t,~classroomId:UUID.t,unit)=>unit
不匹配,即使它们相同
2) 当我在调用函数中直接引用类型时,它表示mutationFunctionType
不是函数,而是函数
3) 我正在使用函子处理我的变异内部模块。。。我想知道这是否会影响类型
谢谢AddStudent.MutationInternals.mutationFunctionType
类型是抽象的,编译器不知道它实际上是作为类型的函数实现的
(~id: UUID.t, ~classroomId: UUID.t, unit) => unit
很难猜测,你的问题的根源是什么。您可能是通过密封模块意外地过度抽象了代码,或者是试图破坏必要的抽象。在任何情况下,编译器都会阻止您这样做
通常,在密封模块时会发生此类错误,例如,在添加模块类型时,例如
module type S = {type t};
module M : S = { type t = int};
这使得类型M.t
抽象化,因此它在预期int
的上下文中不可用。解决方案是移除不必要的密封,例如
module type S = {type t};
module M = { type t = int};
或者明确地告诉编译器,t
不是抽象类型,而是具体的int
,例如
module type S = {type t};
module M: S with type t = int = {
type t = int;
};
注意,在你的情况下,我说的是这段代码
MutationInternals : ApolloMutation.MutationInternal
它隐藏了
mutationFunctionType
定义。ApolloMutation.MutationInternal
强制它。删除它和一些错误修复了我的问题。谢谢!
MutationInternals : ApolloMutation.MutationInternal