1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
{
"message": "method `next` has an incompatible type for trait",
"code": {
"code": "E0053",
"explanation": "\nThe parameters of any trait method must match between a trait implementation\nand the trait definition.\n\nHere are a couple examples of this error:\n\n```compile_fail,E0053\ntrait Foo {\n fn foo(x: u16);\n fn bar(&self);\n}\n\nstruct Bar;\n\nimpl Foo for Bar {\n // error, expected u16, found i16\n fn foo(x: i16) { }\n\n // error, types differ in mutability\n fn bar(&mut self) { }\n}\n```\n"
},
"level": "error",
"spans": [
{
"file_name": "compiler/ty/list_iter.rs",
"byte_start": 1307,
"byte_end": 1350,
"line_start": 52,
"line_end": 52,
"column_start": 5,
"column_end": 48,
"is_primary": true,
"text": [
{
"text": " fn next(&self) -> Option<&'list ty::Ref<M>> {",
"highlight_start": 5,
"highlight_end": 48
}
],
"label": "types differ in mutability",
"suggested_replacement": null,
"suggestion_applicability": null,
"expansion": null
}
],
"children": [
{
"message": "expected type `fn(&mut ty::list_iter::ListIterator<'list, M>) -> std::option::Option<&ty::Ref<M>>`\n found type `fn(&ty::list_iter::ListIterator<'list, M>) -> std::option::Option<&'list ty::Ref<M>>`",
"code": null,
"level": "note",
"spans": [],
"children": [],
"rendered": null
}
],
"rendered": "error[E0053]: method `next` has an incompatible type for trait\n --> compiler/ty/list_iter.rs:52:5\n |\n52 | fn next(&self) -> Option<&'list ty::Ref<M>> {\n | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability\n |\n = note: expected type `fn(&mut ty::list_iter::ListIterator<'list, M>) -> std::option::Option<&ty::Ref<M>>`\n found type `fn(&ty::list_iter::ListIterator<'list, M>) -> std::option::Option<&'list ty::Ref<M>>`\n\n"
}
|
