bjoernager/rust
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errors: implement sysroot/testing bundle loading

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Extend loading of Fluent bundles so that bundles can be loaded from the
sysroot based on the language requested by the user, or using a nightly
flag.

Sysroot bundles are loaded from `$sysroot/share/locale/$locale/*.ftl`.

Signed-off-by: David Wood <david.wood@huawei.com>
This commit is contained in:
David Wood 2022-03-28 09:36:20 +01:00
parent 7f91697b50
commit d5119c5b9f
23 changed files with 322 additions and 46 deletions
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20
compiler/rustc_session/src/options.rs
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@ -4,6 +4,7 @@ use crate::early_error;
use crate::lint;
use crate::search_paths::SearchPath;
use crate::utils::NativeLib;
use rustc_errors::LanguageIdentifier;
use rustc_target::spec::{CodeModel, LinkerFlavor, MergeFunctions, PanicStrategy, SanitizerSet};
use rustc_target::spec::{
RelocModel, RelroLevel, SplitDebuginfo, StackProtector, TargetTriple, TlsModel,
@ -365,6 +366,7 @@ mod desc {
pub const parse_string: &str = "a string";
pub const parse_opt_string: &str = parse_string;
pub const parse_string_push: &str = parse_string;
pub const parse_opt_langid: &str = "a language identifier";
pub const parse_opt_pathbuf: &str = "a path";
pub const parse_list: &str = "a space-separated list of strings";
pub const parse_opt_comma_list: &str = "a comma-separated list of strings";
@ -487,6 +489,17 @@ mod parse {
}
}
/// Parse an optional language identifier, e.g. `en-US` or `zh-CN`.
crate fn parse_opt_langid(slot: &mut Option<LanguageIdentifier>, v: Option<&str>) -> bool {
match v {
Some(s) => {
*slot = rustc_errors::LanguageIdentifier::from_str(s).ok();
true
}
None => false,
}
}
crate fn parse_opt_pathbuf(slot: &mut Option<PathBuf>, v: Option<&str>) -> bool {
match v {
Some(s) => {
@ -1462,6 +1475,13 @@ options! {
"the directory the intermediate files are written to"),
terminal_width: Option<usize> = (None, parse_opt_number, [UNTRACKED],
"set the current terminal width"),
// Diagnostics are considered side-effects of a query (see `QuerySideEffects`) and are saved
// alongside query results and changes to translation options can affect diagnostics - so
// translation options should be tracked.
translate_lang: Option<LanguageIdentifier> = (None, parse_opt_langid, [TRACKED],
"language identifier for diagnostic output"),
translate_additional_ftl: Option<PathBuf> = (None, parse_opt_pathbuf, [TRACKED],
"additional fluent translation to preferentially use (for testing translation)"),
tune_cpu: Option<String> = (None, parse_opt_string, [TRACKED],
"select processor to schedule for (`rustc --print target-cpus` for details)"),
thinlto: Option<bool> = (None, parse_opt_bool, [TRACKED],