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Add support for PEP 696 syntax (#11120)

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Jelle Zijlstra 2024-04-26 00:47:29 -07:00 • committed by GitHub
parent 45725d3275
commit cd3e319538
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49 changed files with 4338 additions and 669 deletions
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27
crates/ruff_python_codegen/src/generator.rs
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@ -756,20 +756,37 @@ impl<'a> Generator<'a> {
pub(crate) fn unparse_type_param(&mut self, ast: &TypeParam) {
match ast {
TypeParam::TypeVar(TypeParamTypeVar { name, bound, .. }) => {
TypeParam::TypeVar(TypeParamTypeVar {
name,
bound,
default,
..
}) => {
self.p_id(name);
if let Some(expr) = bound {
self.p(": ");
self.unparse_expr(expr, precedence::MAX);
}
if let Some(expr) = default {
self.p(" = ");
self.unparse_expr(expr, precedence::MAX);
}
}
TypeParam::TypeVarTuple(TypeParamTypeVarTuple { name, .. }) => {
TypeParam::TypeVarTuple(TypeParamTypeVarTuple { name, default, .. }) => {
self.p("*");
self.p_id(name);
if let Some(expr) = default {
self.p(" = ");
self.unparse_expr(expr, precedence::MAX);
}
}
TypeParam::ParamSpec(TypeParamParamSpec { name, .. }) => {
TypeParam::ParamSpec(TypeParamParamSpec { name, default, .. }) => {
self.p("**");
self.p_id(name);
if let Some(expr) = default {
self.p(" = ");
self.unparse_expr(expr, precedence::MAX);
}
}
}
}
@ -1676,6 +1693,10 @@ class Foo:
assert_round_trip!(r"type Foo[T] = list[T]");
assert_round_trip!(r"type Foo[*Ts] = ...");
assert_round_trip!(r"type Foo[**P] = ...");
assert_round_trip!(r"type Foo[T = int] = list[T]");
assert_round_trip!(r"type Foo[*Ts = int] = ...");
assert_round_trip!(r"type Foo[*Ts = *int] = ...");
assert_round_trip!(r"type Foo[**P = int] = ...");
assert_round_trip!(r"type Foo[T, U, *Ts, **P] = ...");
// https://github.com/astral-sh/ruff/issues/6498
assert_round_trip!(r"f(a=1, *args, **kwargs)");