mirror of
https://github.com/rust-lang/rust.git
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5de8e6edfc
When both `std::` and `core::` items are available, only suggest the `std::` ones. We ensure that in `no_std` crates we suggest `core::` items. Ensure that the list of items suggested to be imported are always in the order of local crate items, `std`/`core` items and finally foreign crate items. Tweak wording of import suggestion: if there are multiple items but they are all of the same kind, we use the kind name and not the generic "items". Fix #83564.
424 lines
12 KiB
Plaintext
424 lines
12 KiB
Plaintext
{
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"$message_type": "diagnostic",
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"message": "cannot find type `Iter` in this scope",
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"code": {
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"code": "E0412",
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"explanation": "A used type name is not in scope.
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Erroneous code examples:
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```compile_fail,E0412
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impl Something {} // error: type name `Something` is not in scope
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// or:
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trait Foo {
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fn bar(N); // error: type name `N` is not in scope
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}
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// or:
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fn foo(x: T) {} // type name `T` is not in scope
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```
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To fix this error, please verify you didn't misspell the type name, you did
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declare it or imported it into the scope. Examples:
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```
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struct Something;
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impl Something {} // ok!
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// or:
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trait Foo {
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type N;
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fn bar(_: Self::N); // ok!
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}
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// or:
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fn foo<T>(x: T) {} // ok!
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```
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Another case that causes this error is when a type is imported into a parent
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module. To fix this, you can follow the suggestion and use File directly or
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`use super::File;` which will import the types from the parent namespace. An
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example that causes this error is below:
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```compile_fail,E0412
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use std::fs::File;
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mod foo {
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fn some_function(f: File) {}
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}
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```
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```
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use std::fs::File;
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mod foo {
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// either
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use super::File;
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// or
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// use std::fs::File;
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fn foo(f: File) {}
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}
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# fn main() {} // don't insert it for us; that'll break imports
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```
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"
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},
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"level": "error",
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"spans": [
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 564,
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"byte_end": 568,
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"line_start": 12,
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"line_end": 12,
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"column_start": 12,
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"column_end": 16,
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"is_primary": true,
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"text": [
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{
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"text": " let x: Iter;",
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"highlight_start": 12,
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"highlight_end": 16
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}
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],
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"label": "not found in this scope",
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"suggested_replacement": null,
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"suggestion_applicability": null,
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"expansion": null
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}
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],
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"children": [
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{
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"message": "consider importing one of these structs",
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"code": null,
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"level": "help",
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"spans": [
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::collections::binary_heap::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::collections::btree_map::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::collections::btree_set::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::collections::hash_map::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::collections::hash_set::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::collections::linked_list::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::collections::vec_deque::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::option::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::path::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::result::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::slice::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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},
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{
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"file_name": "$DIR/use_suggestion_json.rs",
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"byte_start": 541,
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"byte_end": 541,
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"line_start": 11,
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"line_end": 11,
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"column_start": 1,
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"column_end": 1,
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"is_primary": true,
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"text": [
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{
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"text": "fn main() {",
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"highlight_start": 1,
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"highlight_end": 1
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}
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],
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"label": null,
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"suggested_replacement": "use std::sync::mpsc::Iter;
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",
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"suggestion_applicability": "MaybeIncorrect",
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"expansion": null
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}
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],
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"children": [],
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"rendered": null
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}
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],
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"rendered": "\u001b[0m\u001b[1m\u001b[38;5;9merror[E0412]\u001b[0m\u001b[0m\u001b[1m: cannot find type `Iter` in this scope\u001b[0m
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\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m--> \u001b[0m\u001b[0m$DIR/use_suggestion_json.rs:12:12\u001b[0m
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\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m
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\u001b[0m\u001b[1m\u001b[38;5;12mLL\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m let x: Iter;\u001b[0m
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\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;9m^^^^\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;9mnot found in this scope\u001b[0m
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\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m
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\u001b[0m\u001b[1m\u001b[38;5;14mhelp\u001b[0m\u001b[0m: consider importing one of these structs\u001b[0m
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\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m
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\u001b[0m\u001b[1m\u001b[38;5;12mLL\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[38;5;10m+ use std::collections::binary_heap::Iter;\u001b[0m
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\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m
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\u001b[0m\u001b[1m\u001b[38;5;12mLL\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[38;5;10m+ use std::collections::btree_map::Iter;\u001b[0m
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\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m
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\u001b[0m\u001b[1m\u001b[38;5;12mLL\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[38;5;10m+ use std::collections::btree_set::Iter;\u001b[0m
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\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m
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\u001b[0m\u001b[1m\u001b[38;5;12mLL\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[38;5;10m+ use std::collections::hash_map::Iter;\u001b[0m
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\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;12m|\u001b[0m
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\u001b[0m and 8 other candidates\u001b[0m
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"
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}
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{
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"$message_type": "diagnostic",
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"message": "aborting due to 1 previous error",
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"code": null,
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"level": "error",
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"spans": [],
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"children": [],
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"rendered": "\u001b[0m\u001b[1m\u001b[38;5;9merror\u001b[0m\u001b[0m\u001b[1m: aborting due to 1 previous error\u001b[0m
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"
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}
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{
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"$message_type": "diagnostic",
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"message": "For more information about this error, try `rustc --explain E0412`.",
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"code": null,
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"level": "failure-note",
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"spans": [],
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"children": [],
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"rendered": "\u001b[0m\u001b[1mFor more information about this error, try `rustc --explain E0412`.\u001b[0m
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"
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}
|