error: it is more concise to loop over references to containers instead of using explicit iteration methods
--> serde/src/private/de.rs:2761:22
|
2761 | for entry in self.0.iter_mut() {
| ^^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `&mut *self.0`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_iter_loop
= note: `-D clippy::explicit-iter-loop` implied by `-D clippy::pedantic`
error: it is more concise to loop over references to containers instead of using explicit iteration methods
--> serde_derive/src/internals/check.rs:202:20
|
202 | for variant in variants.iter() {
| ^^^^^^^^^^^^^^^ help: to write this more concisely, try: `variants`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_iter_loop
= note: `-D clippy::explicit-iter-loop` implied by `-D clippy::pedantic`
error: it is more concise to loop over references to containers instead of using explicit iteration methods
--> serde_derive/src/bound.rs:262:28
|
262 | for variant in variants.iter() {
| ^^^^^^^^^^^^^^^ help: to write this more concisely, try: `variants`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_iter_loop
Previously if someone wrote an enum containing:
- `A` (untagged)
- `B` (tagged)
- `C` (tagged)
- `D` (untagged)
- `E` (tagged)
- `F` (untagged)
serde_derive would produce errors referring to B and E only, saying
you're supposed to put untagged variants at the end. The choice of B and
E for this error doesn't make a lot of sense because in order to resolve
the issue, the user must either:
- move A and D down
or:
- move B, C, and E up.
This commit changes the error to appear on A and D instead.
error: consider adding a `;` to the last statement for consistent formatting
--> serde_derive/src/internals/ast.rs:161:13
|
161 | seen_untagged = variant.attrs.untagged()
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add a `;` here: `seen_untagged = variant.attrs.untagged();`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned
= note: `-D clippy::semicolon-if-nothing-returned` implied by `-D clippy::pedantic`
error: consider adding a `;` to the last statement for consistent formatting
--> serde_derive/src/internals/ast.rs:159:17
|
159 | ... cx.error_spanned_by(&variant.ident, "all variants with the #[serde(untagged)] attribute must be placed at the end of the enum")
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add a `;` here: `cx.error_spanned_by(&variant.ident, "all variants with the #[serde(untagged)] attribute must be placed at the end of the enum");`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned
Fixes these being treated as "tests" by `cargo test` in serde_derive:
running 3 tests
test src/internals/check.rs - internals::check::check_remote_generic (line 23) ... FAILED
test src/internals/check.rs - internals::check::check_remote_generic (line 29) ... FAILED
test src/lib.rs - (line 3) ... ok
failures:
---- src/internals/check.rs - internals::check::check_remote_generic (line 23) stdout ----
error: unknown start of token: \u{2026}
--> src/internals/check.rs:25:20
|
4 | struct Generic<T> {…}
| ^
error: cannot find attribute `serde` in this scope
--> src/internals/check.rs:24:3
|
3 | #[serde(remote = "Generic")]
| ^^^^^
|
= note: `serde` is in scope, but it is a crate, not an attribute
error[E0392]: parameter `T` is never used
--> src/internals/check.rs:25:16
|
4 | struct Generic<T> {…}
| ^ unused parameter
|
= help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
= help: if you intended `T` to be a const parameter, use `const T: usize` instead
---- src/internals/check.rs - internals::check::check_remote_generic (line 29) stdout ----
error: unknown start of token: \u{2026}
--> src/internals/check.rs:31:21
|
4 | struct ConcreteDef {…}
| ^
error: cannot find attribute `serde` in this scope
--> src/internals/check.rs:30:3
|
3 | #[serde(remote = "Generic<T>")]
| ^^^^^
|
= note: `serde` is in scope, but it is a crate, not an attribute
This works just fine if we make syn parse "where " as a syn::WhereClause.
The serde(bound = "") attribute is definitely not common enough that it
would warrant a micro-optimization.
error: this expression borrows a reference (`&syn::Type`) that is immediately dereferenced by the compiler
--> serde_derive/src/internals/check.rs:399:37
|
399 | if let Type::Path(ty) = ungroup(&field.ty) {
| ^^^^^^^^^ help: change this to: `field.ty`
|
note: the lint level is defined here
--> serde_derive/src/lib.rs:18:9
|
18 | #![deny(clippy::all, clippy::pedantic)]
| ^^^^^^^^^^^
= note: `#[deny(clippy::needless_borrow)]` implied by `#[deny(clippy::all)]`
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
error: this expression borrows a reference (`&str`) that is immediately dereferenced by the compiler
--> serde_derive/src/de.rs:478:52
|
478 | &type_path, params, fields, false, cattrs, &expecting,
| ^^^^^^^^^^ help: change this to: `expecting`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
error: this expression borrows a reference (`&str`) that is immediately dereferenced by the compiler
--> serde_derive/src/de.rs:564:76
|
564 | let visit_seq = Stmts(deserialize_seq_in_place(params, fields, cattrs, &expecting));
| ^^^^^^^^^^ help: change this to: `expecting`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
error: this expression borrows a reference (`&str`) that is immediately dereferenced by the compiler
--> serde_derive/src/de.rs:925:51
|
925 | &type_path, params, fields, true, cattrs, &expecting,
| ^^^^^^^^^^ help: change this to: `expecting`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
error: this expression borrows a reference (`&str`) that is immediately dereferenced by the compiler
--> serde_derive/src/de.rs:1066:76
|
1066 | let visit_seq = Stmts(deserialize_seq_in_place(params, fields, cattrs, &expecting));
| ^^^^^^^^^^ help: change this to: `expecting`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
error: this expression borrows a reference (`&proc_macro2::TokenStream`) that is immediately dereferenced by the compiler
--> serde_derive/src/de.rs:2288:80
|
2288 | let fallthrough_borrowed_arm = fallthrough_borrowed.as_ref().unwrap_or(&fallthrough_arm);
| ^^^^^^^^^^^^^^^^ help: change this to: `fallthrough_arm`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
error: this expression borrows a reference (`&syn::Member`) that is immediately dereferenced by the compiler
--> serde_derive/src/ser.rs:1102:43
|
1102 | get_member(params, field, &member)
| ^^^^^^^ help: change this to: `member`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
error: consider adding a `;` to the last statement for consistent formatting
--> serde_derive/src/internals/attr.rs:559:25
|
559 | serde_path.set(&m.path, path)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add a `;` here: `serde_path.set(&m.path, path);`
|
note: the lint level is defined here
--> serde_derive/src/lib.rs:18:22
|
18 | #![deny(clippy::all, clippy::pedantic)]
| ^^^^^^^^^^^^^^^^
= note: `#[deny(clippy::semicolon_if_nothing_returned)]` implied by `#[deny(clippy::pedantic)]`
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned
error: consider adding a `;` to the last statement for consistent formatting
--> serde_derive/src/internals/attr.rs:1612:9
|
1612 | cx.error_spanned_by(lit, format!("failed to parse path: {:?}", string.value()))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add a `;` here: `cx.error_spanned_by(lit, format!("failed to parse path: {:?}", string.value()));`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned
error: consider adding a `;` to the last statement for consistent formatting
--> serde_derive/src/internals/attr.rs:1623:9
|
1623 | cx.error_spanned_by(lit, format!("failed to parse path: {:?}", string.value()))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add a `;` here: `cx.error_spanned_by(lit, format!("failed to parse path: {:?}", string.value()));`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned
error: consider adding a `;` to the last statement for consistent formatting
--> serde_derive/src/internals/attr.rs:1649:9
|
1649 | / cx.error_spanned_by(
1650 | | lit,
1651 | | format!("failed to parse type: {} = {:?}", attr_name, string.value()),
1652 | | )
| |_________^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned
help: add a `;` here
|
1649 | cx.error_spanned_by(
1650 | lit,
1651 | format!("failed to parse type: {} = {:?}", attr_name, string.value()),
1652 | );
|
error: consider adding a `;` to the last statement for consistent formatting
--> serde_derive/src/internals/check.rs:260:9
|
260 | / cx.error_spanned_by(
261 | | cont.original,
262 | | format!("variant field name `{}` conflicts with internal tag", tag),
263 | | )
| |_________^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned
help: add a `;` here
|
260 | cx.error_spanned_by(
261 | cont.original,
262 | format!("variant field name `{}` conflicts with internal tag", tag),
263 | );
|
error: consider adding a `;` to the last statement for consistent formatting
--> serde_derive/src/de.rs:2090:9
|
2090 | flat_fields.extend(aliases.iter().map(|alias| (alias, ident)))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add a `;` here: `flat_fields.extend(aliases.iter().map(|alias| (alias, ident)));`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned
Unlike expr macros, macros in type position in a derive input are rare
enough that it's not worth supporting for an issue that has such an easy
workaround (just replace `Self` in the macro input with your type name).
Jonas Platte