Nicholas Nethercote 5d9dfbd08f Stop using String for error codes. ... Error codes are integers, but `String` is used everywhere to represent them. Gross! This commit introduces `ErrCode`, an integral newtype for error codes, replacing `String`. It also introduces a constant for every error code, e.g. `E0123`, and removes the `error_code!` macro. The constants are imported wherever used with `use rustc_errors::codes::*`. With the old code, we have three different ways to specify an error code at a use point: ``` error_code!(E0123) // macro call struct_span_code_err!(dcx, span, E0123, "msg"); // bare ident arg to macro call \#[diag(name, code = "E0123")] // string struct Diag; ``` With the new code, they all use the `E0123` constant. ``` E0123 // constant struct_span_code_err!(dcx, span, E0123, "msg"); // constant \#[diag(name, code = E0123)] // constant struct Diag; ``` The commit also changes the structure of the error code definitions: - `rustc_error_codes` now just defines a higher-order macro listing the used error codes and nothing else. - Because that's now the only thing in the `rustc_error_codes` crate, I moved it into the `lib.rs` file and removed the `error_codes.rs` file. - `rustc_errors` uses that macro to define everything, e.g. the error code constants and the `DIAGNOSTIC_TABLES`. This is in its new `codes.rs` file.		2024-01-29 07:41:41 +11:00
..
auxiliary	Support x test --stage 1 ui-fulldeps	2023-04-17 22:40:31 -05:00
fluent-messages	Use rustc_fluent_macro::fluent_messages! directly.	2023-11-26 08:38:40 +11:00
internal-lints	Remove ignore-stage1 that was added when changing error count msg	2024-01-06 12:53:06 +01:00
mod_dir_simple	Move /src/test to /tests	2023-01-11 09:32:08 +00:00
session-diagnostic	Stop using String for error codes.	2024-01-29 07:41:41 +11:00
stable-mir	Ensure internal function is safe	2024-01-19 10:00:32 +00:00
compiler-calls.rs	Support x test --stage 1 ui-fulldeps	2023-04-17 22:40:31 -05:00
deriving-global.rs	Fix tests	2024-01-01 15:13:39 +00:00
deriving-hygiene.rs	Fix tests	2024-01-01 15:13:39 +00:00
dropck_tarena_sound_drop.rs	Move /src/test to /tests	2023-01-11 09:32:08 +00:00
dropck-tarena-cycle-checked.rs	Remove ignore-stage1 that was added when changing error count msg	2024-01-06 12:53:06 +01:00
dropck-tarena-cycle-checked.stderr	Remove ignore-stage1 that was added when changing error count msg	2024-01-06 12:53:06 +01:00
dropck-tarena-unsound-drop.rs	Remove ignore-stage1 that was added when changing error count msg	2024-01-06 12:53:06 +01:00
dropck-tarena-unsound-drop.stderr	Remove ignore-stage1 that was added when changing error count msg	2024-01-06 12:53:06 +01:00
empty-struct-braces-derive.rs	Fix tests	2024-01-01 15:13:39 +00:00
hash-stable-is-unstable.rs	Bless tests	2024-01-13 12:46:58 -05:00
hash-stable-is-unstable.stderr	Bless tests	2024-01-13 12:46:58 -05:00
lint-pass-macros.rs	Remove rustc_lint_defs::lint_array	2023-09-28 23:01:25 +02:00
missing-rustc-driver-error.rs	Don't depend on crate names in tests/ui-fulldeps/missing-rustc-driver-error.rs	2023-07-11 22:30:28 -05:00
missing-rustc-driver-error.stderr	Don't depend on crate names in tests/ui-fulldeps/missing-rustc-driver-error.rs	2023-07-11 22:30:28 -05:00
mod_dir_path_canonicalized.rs	various: translation resources from cg backend	2023-02-22 09:15:54 +00:00
pathless-extern-unstable.rs	Bless tests	2024-01-13 12:46:58 -05:00
pathless-extern-unstable.stderr	Bless tests	2024-01-13 12:46:58 -05:00
pprust-expr-roundtrip.rs	remove redundant imports	2023-12-10 10:56:22 +08:00
regions-mock-tcx.rs	Move /src/test to /tests	2023-01-11 09:32:08 +00:00
rustc_encodable_hygiene.rs	Fix tests	2024-01-01 15:13:39 +00:00