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- Move `assert_failed` to core::panicking`
- Make `assert_failed` use an enum instead of a string
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Address comments
Update limits
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For example, if you had this code:
fn foo(x: i32, y: f32) -> f32 {
x * y
}
You would get this error:
error[E0277]: cannot multiply `f32` to `i32`
--> src/lib.rs:2:7
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2 | x * y
| ^ no implementation for `i32 * f32`
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= help: the trait `Mul<f32>` is not implemented for `i32`
However, that's not usually how people describe multiplication. People
usually describe multiplication like how the division error words it:
error[E0277]: cannot divide `i32` by `f32`
--> src/lib.rs:2:7
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2 | x / y
| ^ no implementation for `i32 / f32`
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= help: the trait `Div<f32>` is not implemented for `i32`
So that's what this change does. It changes this:
error[E0277]: cannot multiply `f32` to `i32`
--> src/lib.rs:2:7
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2 | x * y
| ^ no implementation for `i32 * f32`
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= help: the trait `Mul<f32>` is not implemented for `i32`
To this:
error[E0277]: cannot multiply `i32` by `f32`
--> src/lib.rs:2:7
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2 | x * y
| ^ no implementation for `i32 * f32`
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= help: the trait `Mul<f32>` is not implemented for `i32`
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If a symbol name can only be imported from one place for a type, and
as long as it was not glob-imported anywhere in the current crate, we
can trim its printed path and print only the name.
This has wide implications on error messages with types, for example,
shortening `std::vec::Vec` to just `Vec`, as long as there is no other
`Vec` importable anywhere.
This adds a new '-Z trim-diagnostic-paths=false' option to control this
feature.
On the good path, with no diagnosis printed, we should try to avoid
issuing this query, so we need to prevent trimmed_def_paths query on
several cases.
This change also relies on a previous commit that differentiates
between `Debug` and `Display` on various rustc types, where the latter
is trimmed and presented to the user and the former is not.
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This is a re-attempt of #72389 (which was reverted in #73594)
Instead of using `ExpnKind::Desugaring` to represent operators, this PR
checks the lang item directly.
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r=nikomatsakis"
This reverts commit 372cb9b69c76a042d0b9d4b48ff6084f64c84a2c, reversing
changes made to 5c61a8dc34c3e2fc6d7f02cb288c350f0233f944.
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Some of the bound restriction structured suggestions were incorrect
while others had subpar output.
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Update tests
Extend to other operations
Refractor check in a separate function
Fix more tests
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Replace "integral variable" with "integer" and replace
"floating-point variable" with "floating-point number" to make the
message less confusing.
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This commit updates the test output for the updated NLL compare mode
that uses `-Z borrowck=migrate` rather than `-Z borrowck=mir`. The
previous commit changes `compiletest` and this commit only updates
`.nll.stderr` files.
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Give a special message when the later use is from a call. Use the span
of the callee instead of the whole expression. For conflicting borrow
messages say that the later use is of the first borrow.
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