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fix: Ensure dep/feature activates the dependency on 2024
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This doesn't revert the last commit of rust-lang#14018 so that it works properly
on Editions 2021 and 2024.

Fixes rust-lang#14016
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epage committed Jul 9, 2024
1 parent dca97e4 commit 336e1cf
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Showing 2 changed files with 46 additions and 13 deletions.
27 changes: 25 additions & 2 deletions src/cargo/util/toml/mod.rs
Original file line number Diff line number Diff line change
Expand Up @@ -322,7 +322,7 @@ fn resolve_toml(
});
resolved_toml.package = Some(resolved_package);

resolved_toml.features = resolve_features(original_toml.features.as_ref())?;
resolved_toml.features = resolve_features(original_toml.features.as_ref(), edition)?;

resolved_toml.lib = targets::resolve_lib(
original_toml.lib.as_ref(),
Expand Down Expand Up @@ -691,11 +691,34 @@ fn default_readme_from_package_root(package_root: &Path) -> Option<String> {
#[tracing::instrument(skip_all)]
fn resolve_features(
original_features: Option<&BTreeMap<manifest::FeatureName, Vec<String>>>,
edition: Edition,
) -> CargoResult<Option<BTreeMap<manifest::FeatureName, Vec<String>>>> {
let Some(resolved_features) = original_features.cloned() else {
let Some(mut resolved_features) = original_features.cloned() else {
return Ok(None);
};

if Edition::Edition2024 <= edition {
for activations in resolved_features.values_mut() {
let mut deps = Vec::new();
for feature_value in activations.iter() {
let feature_value = FeatureValue::new(InternedString::new(feature_value));
let FeatureValue::DepFeature {
dep_name,
dep_feature: _,
weak: false,
} = feature_value
else {
continue;
};
let dep = FeatureValue::Dep { dep_name }.to_string();
if !activations.contains(&dep) {
deps.push(dep);
}
}
activations.extend(deps);
}
}

Ok(Some(resolved_features))
}

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32 changes: 21 additions & 11 deletions tests/testsuite/features.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1890,17 +1890,27 @@ fn strong_dep_feature_edition2024() {

p.cargo("metadata")
.masquerade_as_nightly_cargo(&["edition2024"])
.with_status(101)
.with_stderr_data(str![[r#"
[ERROR] feature `optional_dep` includes `optional_dep/foo`, but `optional_dep` is not a dependency
--> Cargo.toml:9:32
|
9 | optional_dep = ["optional_dep/foo"]
| ^^^^^^^^^^^^^^^^^^^^
|
[ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
"#]])
.with_stdout_data(
str![[r#"
{
"metadata": null,
"packages": [
{
"features": {
"optional_dep": [
"optional_dep/foo",
"dep:optional_dep"
]
},
"name": "foo",
"...": "{...}"
}
],
"...": "{...}"
}
"#]]
.json(),
)
.run();
}

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