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Add symmetrical expressions to mutual incompatibilities #9945

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Add symmetrical expressions to mutual incompatibilities #9945

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52 changes: 52 additions & 0 deletions crates/uv-pep508/src/marker/algebra.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -984,6 +984,58 @@ impl InternerGuard<'_> {
let a_and_b = conjunction(self, a, b);
tree = disjunction(self, tree, a_and_b);
}

// These are markers that must have the same value (i.e., they must both be true or both be
// false).
for (a, b) in [
// sys_platform == 'win32' and platform_system == 'Windows'
(
MarkerExpression::String {
key: MarkerValueString::SysPlatform,
operator: MarkerOperator::Equal,
value: "win32".to_string(),
},
MarkerExpression::String {
key: MarkerValueString::PlatformSystem,
operator: MarkerOperator::Equal,
value: "Windows".to_string(),
},
),
// sys_platform == 'darwin' and platform_system == 'Darwin'
(
MarkerExpression::String {
key: MarkerValueString::SysPlatform,
operator: MarkerOperator::Equal,
value: "darwin".to_string(),
},
MarkerExpression::String {
key: MarkerValueString::PlatformSystem,
operator: MarkerOperator::Equal,
value: "Darwin".to_string(),
},
),
// sys_platform == 'linux' and platform_system == 'Linux'
(
MarkerExpression::String {
key: MarkerValueString::SysPlatform,
operator: MarkerOperator::Equal,
value: "linux".to_string(),
},
MarkerExpression::String {
key: MarkerValueString::PlatformSystem,
operator: MarkerOperator::Equal,
value: "Linux".to_string(),
},
),
] {
let a = self.expression(a);
let b = self.expression(b);
let a_and_not_b = conjunction(self, a, b.not());
let not_a_and_b = conjunction(self, a.not(), b);
tree = disjunction(self, tree, a_and_not_b);
tree = disjunction(self, tree, not_a_and_b);
}

self.state.exclusions = Some(tree);
tree
}
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