let x = box 1;
let t = (x, box x, box &1, box [1]);
t;
-} //^ (Box<i32>, Box<Box<i32>>, Box<&i32>, Box<[i32; _]>)
+} //^ (Box<i32>, Box<Box<i32>>, Box<&i32>, Box<[i32; 1]>)
//- /std.rs crate:std
#[prelude_import] use prelude::*;
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}>)
+} //^ (Box<i32, {unknown}>, Box<Box<i32, {unknown}>, {unknown}>, Box<&i32, {unknown}>, Box<[i32; 1], {unknown}>)
//- /std.rs crate:std
#[prelude_import] use prelude::*;
26..30 '5f32': f32
36..40 '5f64': f64
46..53 '"hello"': &str
- 59..67 'b"bytes"': &[u8; _]
+ 59..67 'b"bytes"': &[u8; 5]
73..76 ''c'': char
82..86 'b'b'': u8
92..96 '3.14': f64
112..117 'false': bool
123..127 'true': bool
133..197 'r#" ... "#': &str
- 203..213 'br#"yolo"#': &[u8; _]
+ 203..213 'br#"yolo"#': &[u8; 4]
"##]],
);
}
)
}
+#[test]
+fn infer_closure_unify() {
+ check_infer(
+ r#"
+ fn foo(f: bool) {
+ let a = |x| x;
+ let b = |x| x;
+ let id = if f { a } else { b };
+ id(123);
+ }
+ "#,
+ expect![[r#"
+ 7..8 'f': bool
+ 16..106 '{ ...23); }': ()
+ 26..27 'a': |i32| -> i32
+ 30..35 '|x| x': |i32| -> i32
+ 31..32 'x': i32
+ 34..35 'x': i32
+ 45..46 'b': |i32| -> i32
+ 49..54 '|x| x': |i32| -> i32
+ 50..51 'x': i32
+ 53..54 'x': i32
+ 64..66 'id': |i32| -> i32
+ 69..90 'if f {... { b }': |i32| -> i32
+ 72..73 'f': bool
+ 74..79 '{ a }': |i32| -> i32
+ 76..77 'a': |i32| -> i32
+ 85..90 '{ b }': |i32| -> i32
+ 87..88 'b': |i32| -> i32
+ 96..98 'id': |i32| -> i32
+ 96..103 'id(123)': i32
+ 99..102 '123': i32
+ "#]],
+ )
+}
+
#[test]
fn infer_if_match_with_return() {
check_infer(
8..9 'x': &str
17..18 'y': isize
27..292 '{ ... []; }': ()
- 37..38 'a': [&str; _]
- 41..44 '[x]': [&str; _]
+ 37..38 'a': [&str; 1]
+ 41..44 '[x]': [&str; 1]
42..43 'x': &str
- 54..55 'b': [[&str; _]; _]
- 58..64 '[a, a]': [[&str; _]; _]
- 59..60 'a': [&str; _]
- 62..63 'a': [&str; _]
- 74..75 'c': [[[&str; _]; _]; _]
- 78..84 '[b, b]': [[[&str; _]; _]; _]
- 79..80 'b': [[&str; _]; _]
- 82..83 'b': [[&str; _]; _]
- 95..96 'd': [isize; _]
- 99..111 '[y, 1, 2, 3]': [isize; _]
+ 54..55 'b': [[&str; 1]; 2]
+ 58..64 '[a, a]': [[&str; 1]; 2]
+ 59..60 'a': [&str; 1]
+ 62..63 'a': [&str; 1]
+ 74..75 'c': [[[&str; 1]; 2]; 2]
+ 78..84 '[b, b]': [[[&str; 1]; 2]; 2]
+ 79..80 'b': [[&str; 1]; 2]
+ 82..83 'b': [[&str; 1]; 2]
+ 95..96 'd': [isize; 4]
+ 99..111 '[y, 1, 2, 3]': [isize; 4]
100..101 'y': isize
103..104 '1': isize
106..107 '2': isize
109..110 '3': isize
- 121..122 'd': [isize; _]
- 125..137 '[1, y, 2, 3]': [isize; _]
+ 121..122 'd': [isize; 4]
+ 125..137 '[1, y, 2, 3]': [isize; 4]
126..127 '1': isize
129..130 'y': isize
132..133 '2': isize
135..136 '3': isize
- 147..148 'e': [isize; _]
- 151..154 '[y]': [isize; _]
+ 147..148 'e': [isize; 1]
+ 151..154 '[y]': [isize; 1]
152..153 'y': isize
- 164..165 'f': [[isize; _]; _]
- 168..174 '[d, d]': [[isize; _]; _]
- 169..170 'd': [isize; _]
- 172..173 'd': [isize; _]
- 184..185 'g': [[isize; _]; _]
- 188..194 '[e, e]': [[isize; _]; _]
- 189..190 'e': [isize; _]
- 192..193 'e': [isize; _]
- 205..206 'h': [i32; _]
- 209..215 '[1, 2]': [i32; _]
+ 164..165 'f': [[isize; 4]; 2]
+ 168..174 '[d, d]': [[isize; 4]; 2]
+ 169..170 'd': [isize; 4]
+ 172..173 'd': [isize; 4]
+ 184..185 'g': [[isize; 1]; 2]
+ 188..194 '[e, e]': [[isize; 1]; 2]
+ 189..190 'e': [isize; 1]
+ 192..193 'e': [isize; 1]
+ 205..206 'h': [i32; 2]
+ 209..215 '[1, 2]': [i32; 2]
210..211 '1': i32
213..214 '2': i32
- 225..226 'i': [&str; _]
- 229..239 '["a", "b"]': [&str; _]
+ 225..226 'i': [&str; 2]
+ 229..239 '["a", "b"]': [&str; 2]
230..233 '"a"': &str
235..238 '"b"': &str
- 250..251 'b': [[&str; _]; _]
- 254..264 '[a, ["b"]]': [[&str; _]; _]
- 255..256 'a': [&str; _]
- 258..263 '["b"]': [&str; _]
+ 250..251 'b': [[&str; 1]; 2]
+ 254..264 '[a, ["b"]]': [[&str; 1]; 2]
+ 255..256 'a': [&str; 1]
+ 258..263 '["b"]': [&str; 1]
259..262 '"b"': &str
- 274..275 'x': [u8; _]
- 287..289 '[]': [u8; _]
+ 274..275 'x': [u8; 0]
+ 287..289 '[]': [u8; 0]
"#]],
);
}
320..422 '{ ... }': V2
334..335 'x': f32
338..342 'self': V2
- 338..344 'self.0': [f32; _]
+ 338..344 'self.0': [f32; 2]
338..347 'self.0[0]': {unknown}
338..358 'self.0...s.0[0]': f32
345..346 '0': i32
350..353 'rhs': V2
- 350..355 'rhs.0': [f32; _]
+ 350..355 'rhs.0': [f32; 2]
350..358 'rhs.0[0]': {unknown}
356..357 '0': i32
372..373 'y': f32
376..380 'self': V2
- 376..382 'self.0': [f32; _]
+ 376..382 'self.0': [f32; 2]
376..385 'self.0[1]': {unknown}
376..396 'self.0...s.0[1]': f32
383..384 '1': i32
388..391 'rhs': V2
- 388..393 'rhs.0': [f32; _]
+ 388..393 'rhs.0': [f32; 2]
388..396 'rhs.0[1]': {unknown}
394..395 '1': i32
- 406..408 'V2': V2([f32; _]) -> V2
+ 406..408 'V2': V2([f32; 2]) -> V2
406..416 'V2([x, y])': V2
- 409..415 '[x, y]': [f32; _]
+ 409..415 '[x, y]': [f32; 2]
410..411 'x': f32
413..414 'y': f32
436..519 '{ ... vb; }': ()
446..448 'va': V2
- 451..453 'V2': V2([f32; _]) -> V2
+ 451..453 'V2': V2([f32; 2]) -> V2
451..465 'V2([0.0, 1.0])': V2
- 454..464 '[0.0, 1.0]': [f32; _]
+ 454..464 '[0.0, 1.0]': [f32; 2]
455..458 '0.0': f32
460..463 '1.0': f32
475..477 'vb': V2
- 480..482 'V2': V2([f32; _]) -> V2
+ 480..482 'V2': V2([f32; 2]) -> V2
480..494 'V2([0.0, 1.0])': V2
- 483..493 '[0.0, 1.0]': [f32; _]
+ 483..493 '[0.0, 1.0]': [f32; 2]
484..487 '0.0': f32
489..492 '1.0': f32
505..506 'r': V2
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; _]
+ 680..690 'box [1i32]': Box<[i32; 1], Global>
+ 684..690 '[1i32]': [i32; 1]
685..689 '1i32': i32
"#]],
)