use rustc::lint::*;
use rustc::hir::*;
-use utils::{is_range_expression, match_var, span_lint_and_sugg};
+use utils::{in_macro, is_range_expression, match_var, span_lint_and_sugg};
/// **What it does:** Checks for fields in struct literals where shorthands
/// could be used.
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for RedundantFieldNames {
fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr) {
- // Do not care about range expressions.
- // They could have redundant field name when desugared to structs.
- // e.g. `start..end` is desugared to `Range { start: start, end: end }`
- if is_range_expression(expr.span) {
+ // Ignore all macros including range expressions.
+ // They can have redundant field names when expanded.
+ // e.g. range expression `start..end` is desugared to `Range { start: start, end: end }`
+ if in_macro(expr.span) || is_range_expression(expr.span) {
return;
}
error: redundant field names in struct initialization
- --> $DIR/redundant_field_names.rs:26:9
+ --> $DIR/redundant_field_names.rs:34:9
|
-26 | gender: gender,
+34 | gender: gender,
| ^^^^^^^^^^^^^^ help: replace it with: `gender`
|
= note: `-D redundant-field-names` implied by `-D warnings`
error: redundant field names in struct initialization
- --> $DIR/redundant_field_names.rs:27:9
+ --> $DIR/redundant_field_names.rs:35:9
|
-27 | age: age,
+35 | age: age,
| ^^^^^^^^ help: replace it with: `age`
error: redundant field names in struct initialization
- --> $DIR/redundant_field_names.rs:45:25
+ --> $DIR/redundant_field_names.rs:53:25
|
-45 | let _ = RangeFrom { start: start };
+53 | let _ = RangeFrom { start: start };
| ^^^^^^^^^^^^ help: replace it with: `start`
error: redundant field names in struct initialization
- --> $DIR/redundant_field_names.rs:46:23
+ --> $DIR/redundant_field_names.rs:54:23
|
-46 | let _ = RangeTo { end: end };
+54 | let _ = RangeTo { end: end };
| ^^^^^^^^ help: replace it with: `end`
error: redundant field names in struct initialization
- --> $DIR/redundant_field_names.rs:47:21
+ --> $DIR/redundant_field_names.rs:55:21
|
-47 | let _ = Range { start: start, end: end };
+55 | let _ = Range { start: start, end: end };
| ^^^^^^^^^^^^ help: replace it with: `start`
error: redundant field names in struct initialization
- --> $DIR/redundant_field_names.rs:47:35
+ --> $DIR/redundant_field_names.rs:55:35
|
-47 | let _ = Range { start: start, end: end };
+55 | let _ = Range { start: start, end: end };
| ^^^^^^^^ help: replace it with: `end`
error: redundant field names in struct initialization
- --> $DIR/redundant_field_names.rs:48:30
+ --> $DIR/redundant_field_names.rs:56:30
|
-48 | let _ = RangeInclusive { start: start, end: end };
+56 | let _ = RangeInclusive { start: start, end: end };
| ^^^^^^^^^^^^ help: replace it with: `start`
error: redundant field names in struct initialization
- --> $DIR/redundant_field_names.rs:48:44
+ --> $DIR/redundant_field_names.rs:56:44
|
-48 | let _ = RangeInclusive { start: start, end: end };
+56 | let _ = RangeInclusive { start: start, end: end };
| ^^^^^^^^ help: replace it with: `end`
error: redundant field names in struct initialization
- --> $DIR/redundant_field_names.rs:49:32
+ --> $DIR/redundant_field_names.rs:57:32
|
-49 | let _ = RangeToInclusive { end: end };
+57 | let _ = RangeToInclusive { end: end };
| ^^^^^^^^ help: replace it with: `end`
error: aborting due to 9 previous errors