Make error messages from deriving(Foo) point to the deriving declaration as well as the field #10844
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format. Previously, any attempt to use this information from inside something like #[deriving(Foo)] would result in it printing like `deriving(Foo)!`.
using the expansion info.
Previously something like
struct NotEq;
#[deriving(Eq)]
struct Error {
foo: NotEq
}
would just point to the `foo` field, with no mention of the
`deriving(Eq)`. With this patch, the compiler creates a note saying "in
expansion of #[deriving(Eq)]" pointing to the Eq.
|
The test runner doesn't seem to handle |
bors
added a commit
that referenced
this pull request
Dec 7, 2013
Previously something like
struct NotEq;
#[deriving(Eq)]
struct Error {
foo: NotEq
}
would just point to the `foo` field, with no mention of the
`deriving(Eq)`. With this patch, the compiler creates a note saying "in
expansion of #[deriving(Eq)]" pointing to the Eq.
(includes some cleanup/preparation; the commit view might be nicer, to filter out the noise of the first one.)
flip1995
pushed a commit
to flip1995/rust
that referenced
this pull request
Jan 11, 2024
Don't lint `let_unit_value` when `()` is explicit since these are explicitly written (and not the result of a function call or anything else), they should be allowed, as they are both useful in some cases described in rust-lang#9048 Fixes rust-lang#9048 changelog: [`let_unit_value`]: Don't lint when `()` is explicit
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Previously something like
would just point to the
foofield, with no mention of thederiving(Eq). With this patch, the compiler creates a note saying "inexpansion of #[deriving(Eq)]" pointing to the Eq.
(includes some cleanup/preparation; the commit view might be nicer, to filter out the noise of the first one.)