bjoernager/rust
bjoernager/rust
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By tracking import use types to check whether it is scope uses or the other situations like module-relative uses, we can do more accurate redundant import checking.

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fixes #117448

For example unnecessary imports in std::prelude that can be eliminated:

```rust
use std::option::Option::Some;//~ WARNING the item `Some` is imported redundantly
use std::option::Option::None; //~ WARNING the item `None` is imported redundantly
```
This commit is contained in:
surechen 2023-11-10 10:11:24 +08:00
parent d3df8ff851
commit a61126cef6
52 changed files with 283 additions and 167 deletions
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2
compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs
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@ -5,7 +5,7 @@ use crate::errors::{
use crate::infer::error_reporting::TypeErrCtxt;
use crate::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind};
use crate::infer::InferCtxt;
use rustc_errors::{codes::*, DiagnosticBuilder, ErrCode, IntoDiagnosticArg};
use rustc_errors::{codes::*, DiagnosticBuilder, IntoDiagnosticArg};
use rustc_hir as hir;
use rustc_hir::def::Res;
use rustc_hir::def::{CtorOf, DefKind, Namespace};