use expect_test::expect;
-use test_utils::mark;
use super::{check_infer, check_types};
);
}
+#[test]
+fn infer_box_with_allocator() {
+ check_types(
+ r#"
+//- /main.rs crate:main deps:std
+fn test() {
+ let x = box 1;
+ let t = (x, box x, box &1, box [1]);
+ t;
+} //^ (Box<i32, {unknown}>, Box<Box<i32, {unknown}>, {unknown}>, Box<&i32, {unknown}>, Box<[i32; _], {unknown}>)
+
+//- /std.rs crate:std
+#[prelude_import] use prelude::*;
+mod boxed {
+ #[lang = "owned_box"]
+ pub struct Box<T: ?Sized, A: Allocator> {
+ inner: *mut T,
+ allocator: A,
+ }
+}
+"#,
+ );
+}
+
#[test]
fn infer_adt_self() {
check_types(
mod b {
impl super::A {
- fn bar(&self, x: u64) -> i64 {}
+ pub fn bar(&self, x: u64) -> i64 {}
}
}
31..35 'self': A
37..38 'x': u32
52..54 '{}': ()
- 102..106 'self': &A
- 108..109 'x': u64
- 123..125 '{}': ()
- 143..144 'a': A
- 149..197 '{ ...(1); }': ()
- 155..156 'a': A
- 155..163 'a.foo(1)': i32
- 161..162 '1': u32
- 169..180 '(&a).bar(1)': i64
- 170..172 '&a': &A
- 171..172 'a': A
- 178..179 '1': u64
- 186..187 'a': A
- 186..194 'a.bar(1)': i64
- 192..193 '1': u64
+ 106..110 'self': &A
+ 112..113 'x': u64
+ 127..129 '{}': ()
+ 147..148 'a': A
+ 153..201 '{ ...(1); }': ()
+ 159..160 'a': A
+ 159..167 'a.foo(1)': i32
+ 165..166 '1': u32
+ 173..184 '(&a).bar(1)': i64
+ 174..176 '&a': &A
+ 175..176 'a': A
+ 182..183 '1': u64
+ 190..191 'a': A
+ 190..198 'a.bar(1)': i64
+ 196..197 '1': u64
"#]],
);
}
#[test]
fn infer_operator_overload() {
- mark::check!(infer_expr_inner_binary_operator_overload);
+ cov_mark::check!(infer_expr_inner_binary_operator_overload);
check_infer(
r#"
"#]],
);
}
+
+#[test]
+fn infer_const_params() {
+ check_infer(
+ r#"
+ fn foo<const FOO: usize>() {
+ let bar = FOO;
+ }
+ "#,
+ expect![[r#"
+ 27..49 '{ ...FOO; }': ()
+ 37..40 'bar': usize
+ 43..46 'FOO': usize
+ "#]],
+ );
+}
+
+#[test]
+fn infer_inner_type() {
+ check_infer(
+ r#"
+ fn foo() {
+ struct S { field: u32 }
+ let s = S { field: 0 };
+ let f = s.field;
+ }
+ "#,
+ expect![[r#"
+ 9..89 '{ ...eld; }': ()
+ 47..48 's': S
+ 51..65 'S { field: 0 }': S
+ 62..63 '0': u32
+ 75..76 'f': u32
+ 79..80 's': S
+ 79..86 's.field': u32
+ "#]],
+ );
+}
+
+#[test]
+fn infer_nested_inner_type() {
+ check_infer(
+ r#"
+ fn foo() {
+ {
+ let s = S { field: 0 };
+ let f = s.field;
+ }
+ struct S { field: u32 }
+ }
+ "#,
+ expect![[r#"
+ 9..109 '{ ...32 } }': ()
+ 15..79 '{ ... }': ()
+ 29..30 's': S
+ 33..47 'S { field: 0 }': S
+ 44..45 '0': u32
+ 61..62 'f': u32
+ 65..66 's': S
+ 65..72 's.field': u32
+ "#]],
+ );
+}
+
+#[test]
+fn inner_use_enum_rename() {
+ check_infer(
+ r#"
+ enum Request {
+ Info
+ }
+
+ fn f() {
+ use Request as R;
+
+ let r = R::Info;
+ match r {
+ R::Info => {}
+ }
+ }
+ "#,
+ expect![[r#"
+ 34..123 '{ ... } }': ()
+ 67..68 'r': Request
+ 71..78 'R::Info': Request
+ 84..121 'match ... }': ()
+ 90..91 'r': Request
+ 102..109 'R::Info': Request
+ 113..115 '{}': ()
+ "#]],
+ )
+}
+
+#[test]
+fn box_into_vec() {
+ check_infer(
+ r#"
+#[lang = "sized"]
+pub trait Sized {}
+
+#[lang = "unsize"]
+pub trait Unsize<T: ?Sized> {}
+
+#[lang = "coerce_unsized"]
+pub trait CoerceUnsized<T> {}
+
+pub unsafe trait Allocator {}
+
+pub struct Global;
+unsafe impl Allocator for Global {}
+
+#[lang = "owned_box"]
+#[fundamental]
+pub struct Box<T: ?Sized, A: Allocator = Global>;
+
+impl<T: ?Sized + Unsize<U>, U: ?Sized, A: Allocator> CoerceUnsized<Box<U, A>> for Box<T, A> {}
+
+pub struct Vec<T, A: Allocator = Global> {}
+
+#[lang = "slice"]
+impl<T> [T] {}
+
+#[lang = "slice_alloc"]
+impl<T> [T] {
+ pub fn into_vec<A: Allocator>(self: Box<Self, A>) -> Vec<T, A> {
+ unimplemented!()
+ }
+}
+
+fn test() {
+ let vec = <[_]>::into_vec(box [1i32]);
+}
+"#,
+ expect![[r#"
+ 569..573 'self': Box<[T], A>
+ 602..634 '{ ... }': Vec<T, A>
+ 612..628 'unimpl...ted!()': Vec<T, A>
+ 648..694 '{ ...2]); }': ()
+ 658..661 'vec': Vec<i32, Global>
+ 664..679 '<[_]>::into_vec': fn into_vec<i32, Global>(Box<[i32], Global>) -> Vec<i32, Global>
+ 664..691 '<[_]>:...1i32])': Vec<i32, Global>
+ 680..690 'box [1i32]': Box<[i32; _], Global>
+ 684..690 '[1i32]': [i32; _]
+ 685..689 '1i32': i32
+ "#]],
+ )
+}
+
+#[test]
+fn cfgd_out_assoc_items() {
+ check_types(
+ r#"
+struct S;
+
+impl S {
+ #[cfg(FALSE)]
+ const C: S = S;
+}
+
+fn f() {
+ S::C;
+ //^^^^ {unknown}
+}
+ "#,
+ )
+}
+
+#[test]
+fn infer_type_alias_variant() {
+ check_infer(
+ r#"
+type Qux = Foo;
+enum Foo {
+ Bar(i32),
+ Baz { baz: f32 }
+}
+
+fn f() {
+ match Foo::Bar(3) {
+ Qux::Bar(bar) => (),
+ Qux::Baz { baz } => (),
+ }
+}
+ "#,
+ expect![[r#"
+ 72..166 '{ ... } }': ()
+ 78..164 'match ... }': ()
+ 84..92 'Foo::Bar': Bar(i32) -> Foo
+ 84..95 'Foo::Bar(3)': Foo
+ 93..94 '3': i32
+ 106..119 'Qux::Bar(bar)': Foo
+ 115..118 'bar': i32
+ 123..125 '()': ()
+ 135..151 'Qux::B... baz }': Foo
+ 146..149 'baz': f32
+ 155..157 '()': ()
+ "#]],
+ )
+}