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More Simplify Starting to come together Reverts Trying to get the lock info from sync Rewrite resolution into a graph Add version to ResolvedDist Fix up graphs Attach to install everywhere Attach to install everywhere
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| use uv_normalize::PackageName; | ||
| use uv_pep440::Version; | ||
|
|
||
| /// A chain of derivation steps from the root package to the current package, to explain why a | ||
| /// package is included in the resolution. | ||
| #[derive(Debug, Default, Clone, PartialEq, Eq, Hash)] | ||
| pub struct DerivationChain(Vec<DerivationStep>); | ||
|
|
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| impl FromIterator<DerivationStep> for DerivationChain { | ||
| fn from_iter<T: IntoIterator<Item = DerivationStep>>(iter: T) -> Self { | ||
| Self(iter.into_iter().collect()) | ||
| } | ||
| } | ||
|
|
||
| impl DerivationChain { | ||
| /// Returns the length of the derivation chain. | ||
| pub fn len(&self) -> usize { | ||
| self.0.len() | ||
| } | ||
|
|
||
| /// Returns `true` if the derivation chain is empty. | ||
| pub fn is_empty(&self) -> bool { | ||
| self.0.is_empty() | ||
| } | ||
|
|
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| /// Returns an iterator over the steps in the derivation chain. | ||
| pub fn iter(&self) -> std::slice::Iter<DerivationStep> { | ||
| self.0.iter() | ||
| } | ||
| } | ||
|
|
||
| impl std::fmt::Display for DerivationChain { | ||
| fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { | ||
| for (idx, step) in self.0.iter().enumerate() { | ||
| if idx > 0 { | ||
| write!(f, " -> ")?; | ||
| } | ||
| write!(f, "{}=={}", step.name, step.version)?; | ||
| } | ||
| Ok(()) | ||
| } | ||
| } | ||
|
|
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| impl<'chain> IntoIterator for &'chain DerivationChain { | ||
| type Item = &'chain DerivationStep; | ||
| type IntoIter = std::slice::Iter<'chain, DerivationStep>; | ||
|
|
||
| fn into_iter(self) -> Self::IntoIter { | ||
| self.0.iter() | ||
| } | ||
| } | ||
|
|
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| impl IntoIterator for DerivationChain { | ||
| type Item = DerivationStep; | ||
| type IntoIter = std::vec::IntoIter<DerivationStep>; | ||
|
|
||
| fn into_iter(self) -> Self::IntoIter { | ||
| self.0.into_iter() | ||
| } | ||
| } | ||
|
|
||
| /// A step in a derivation chain. | ||
| #[derive(Debug, Clone, PartialEq, Eq, Hash)] | ||
| pub struct DerivationStep { | ||
| /// The name of the package. | ||
| name: PackageName, | ||
| /// The version of the package. | ||
| version: Version, | ||
| } | ||
|
|
||
| impl DerivationStep { | ||
| /// Create a [`DerivationStep`] from a package name and version. | ||
| pub fn new(name: PackageName, version: Version) -> Self { | ||
| Self { name, version } | ||
| } | ||
| } | ||
|
|
||
| impl std::fmt::Display for DerivationStep { | ||
| fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { | ||
| write!(f, "{}=={}", self.name, self.version) | ||
| } | ||
| } |
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