diff options
Diffstat (limited to 'crates/ra_hir/src/ty/tests.rs')
-rw-r--r-- | crates/ra_hir/src/ty/tests.rs | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/crates/ra_hir/src/ty/tests.rs b/crates/ra_hir/src/ty/tests.rs index 57fd5492d..c5818b738 100644 --- a/crates/ra_hir/src/ty/tests.rs +++ b/crates/ra_hir/src/ty/tests.rs | |||
@@ -3273,6 +3273,181 @@ fn test<T: ApplyL>(t: T) { | |||
3273 | assert_eq!(t, "{unknown}"); | 3273 | assert_eq!(t, "{unknown}"); |
3274 | } | 3274 | } |
3275 | 3275 | ||
3276 | #[test] | ||
3277 | fn impl_trait() { | ||
3278 | assert_snapshot_matches!( | ||
3279 | infer(r#" | ||
3280 | trait Trait<T> { | ||
3281 | fn foo(&self) -> T; | ||
3282 | fn foo2(&self) -> i64; | ||
3283 | } | ||
3284 | fn bar() -> impl Trait<u64> {} | ||
3285 | |||
3286 | fn test(x: impl Trait<u64>, y: &impl Trait<u64>) { | ||
3287 | x; | ||
3288 | y; | ||
3289 | let z = bar(); | ||
3290 | x.foo(); | ||
3291 | y.foo(); | ||
3292 | z.foo(); | ||
3293 | x.foo2(); | ||
3294 | y.foo2(); | ||
3295 | z.foo2(); | ||
3296 | } | ||
3297 | "#), | ||
3298 | @r###" | ||
3299 | ⋮ | ||
3300 | ⋮[30; 34) 'self': &Self | ||
3301 | ⋮[55; 59) 'self': &Self | ||
3302 | ⋮[99; 101) '{}': () | ||
3303 | ⋮[111; 112) 'x': impl Trait<u64> | ||
3304 | ⋮[131; 132) 'y': &impl Trait<u64> | ||
3305 | ⋮[152; 269) '{ ...2(); }': () | ||
3306 | ⋮[158; 159) 'x': impl Trait<u64> | ||
3307 | ⋮[165; 166) 'y': &impl Trait<u64> | ||
3308 | ⋮[176; 177) 'z': impl Trait<u64> | ||
3309 | ⋮[180; 183) 'bar': fn bar() -> impl Trait<u64> | ||
3310 | ⋮[180; 185) 'bar()': impl Trait<u64> | ||
3311 | ⋮[191; 192) 'x': impl Trait<u64> | ||
3312 | ⋮[191; 198) 'x.foo()': {unknown} | ||
3313 | ⋮[204; 205) 'y': &impl Trait<u64> | ||
3314 | ⋮[204; 211) 'y.foo()': {unknown} | ||
3315 | ⋮[217; 218) 'z': impl Trait<u64> | ||
3316 | ⋮[217; 224) 'z.foo()': {unknown} | ||
3317 | ⋮[230; 231) 'x': impl Trait<u64> | ||
3318 | ⋮[230; 238) 'x.foo2()': i64 | ||
3319 | ⋮[244; 245) 'y': &impl Trait<u64> | ||
3320 | ⋮[244; 252) 'y.foo2()': i64 | ||
3321 | ⋮[258; 259) 'z': impl Trait<u64> | ||
3322 | ⋮[258; 266) 'z.foo2()': i64 | ||
3323 | "### | ||
3324 | ); | ||
3325 | } | ||
3326 | |||
3327 | #[test] | ||
3328 | fn dyn_trait() { | ||
3329 | assert_snapshot_matches!( | ||
3330 | infer(r#" | ||
3331 | trait Trait<T> { | ||
3332 | fn foo(&self) -> T; | ||
3333 | fn foo2(&self) -> i64; | ||
3334 | } | ||
3335 | fn bar() -> dyn Trait<u64> {} | ||
3336 | |||
3337 | fn test(x: dyn Trait<u64>, y: &dyn Trait<u64>) { | ||
3338 | x; | ||
3339 | y; | ||
3340 | let z = bar(); | ||
3341 | x.foo(); | ||
3342 | y.foo(); | ||
3343 | z.foo(); | ||
3344 | x.foo2(); | ||
3345 | y.foo2(); | ||
3346 | z.foo2(); | ||
3347 | } | ||
3348 | "#), | ||
3349 | @r###" | ||
3350 | ⋮ | ||
3351 | ⋮[30; 34) 'self': &Self | ||
3352 | ⋮[55; 59) 'self': &Self | ||
3353 | ⋮[98; 100) '{}': () | ||
3354 | ⋮[110; 111) 'x': dyn Trait<u64> | ||
3355 | ⋮[129; 130) 'y': &dyn Trait<u64> | ||
3356 | ⋮[149; 266) '{ ...2(); }': () | ||
3357 | ⋮[155; 156) 'x': dyn Trait<u64> | ||
3358 | ⋮[162; 163) 'y': &dyn Trait<u64> | ||
3359 | ⋮[173; 174) 'z': dyn Trait<u64> | ||
3360 | ⋮[177; 180) 'bar': fn bar() -> dyn Trait<u64> | ||
3361 | ⋮[177; 182) 'bar()': dyn Trait<u64> | ||
3362 | ⋮[188; 189) 'x': dyn Trait<u64> | ||
3363 | ⋮[188; 195) 'x.foo()': {unknown} | ||
3364 | ⋮[201; 202) 'y': &dyn Trait<u64> | ||
3365 | ⋮[201; 208) 'y.foo()': {unknown} | ||
3366 | ⋮[214; 215) 'z': dyn Trait<u64> | ||
3367 | ⋮[214; 221) 'z.foo()': {unknown} | ||
3368 | ⋮[227; 228) 'x': dyn Trait<u64> | ||
3369 | ⋮[227; 235) 'x.foo2()': i64 | ||
3370 | ⋮[241; 242) 'y': &dyn Trait<u64> | ||
3371 | ⋮[241; 249) 'y.foo2()': i64 | ||
3372 | ⋮[255; 256) 'z': dyn Trait<u64> | ||
3373 | ⋮[255; 263) 'z.foo2()': i64 | ||
3374 | "### | ||
3375 | ); | ||
3376 | } | ||
3377 | |||
3378 | #[test] | ||
3379 | fn dyn_trait_bare() { | ||
3380 | assert_snapshot_matches!( | ||
3381 | infer(r#" | ||
3382 | trait Trait { | ||
3383 | fn foo(&self) -> u64; | ||
3384 | } | ||
3385 | fn bar() -> Trait {} | ||
3386 | |||
3387 | fn test(x: Trait, y: &Trait) -> u64 { | ||
3388 | x; | ||
3389 | y; | ||
3390 | let z = bar(); | ||
3391 | x.foo(); | ||
3392 | y.foo(); | ||
3393 | z.foo(); | ||
3394 | } | ||
3395 | "#), | ||
3396 | @r###" | ||
3397 | ⋮ | ||
3398 | ⋮[27; 31) 'self': &Self | ||
3399 | ⋮[61; 63) '{}': () | ||
3400 | ⋮[73; 74) 'x': {unknown} | ||
3401 | ⋮[83; 84) 'y': &{unknown} | ||
3402 | ⋮[101; 176) '{ ...o(); }': () | ||
3403 | ⋮[107; 108) 'x': {unknown} | ||
3404 | ⋮[114; 115) 'y': &{unknown} | ||
3405 | ⋮[125; 126) 'z': {unknown} | ||
3406 | ⋮[129; 132) 'bar': fn bar() -> {unknown} | ||
3407 | ⋮[129; 134) 'bar()': {unknown} | ||
3408 | ⋮[140; 141) 'x': {unknown} | ||
3409 | ⋮[140; 147) 'x.foo()': {unknown} | ||
3410 | ⋮[153; 154) 'y': &{unknown} | ||
3411 | ⋮[153; 160) 'y.foo()': {unknown} | ||
3412 | ⋮[166; 167) 'z': {unknown} | ||
3413 | ⋮[166; 173) 'z.foo()': {unknown} | ||
3414 | "### | ||
3415 | ); | ||
3416 | } | ||
3417 | |||
3418 | #[test] | ||
3419 | fn weird_bounds() { | ||
3420 | assert_snapshot_matches!( | ||
3421 | infer(r#" | ||
3422 | trait Trait {} | ||
3423 | fn test() { | ||
3424 | let a: impl Trait + 'lifetime = foo; | ||
3425 | let b: impl 'lifetime = foo; | ||
3426 | let b: impl (Trait) = foo; | ||
3427 | let b: impl ('lifetime) = foo; | ||
3428 | let d: impl ?Sized = foo; | ||
3429 | let e: impl Trait + ?Sized = foo; | ||
3430 | } | ||
3431 | "#), | ||
3432 | @r###" | ||
3433 | ⋮ | ||
3434 | ⋮[26; 237) '{ ...foo; }': () | ||
3435 | ⋮[36; 37) 'a': impl Trait + {error} | ||
3436 | ⋮[64; 67) 'foo': impl Trait + {error} | ||
3437 | ⋮[77; 78) 'b': impl {error} | ||
3438 | ⋮[97; 100) 'foo': impl {error} | ||
3439 | ⋮[110; 111) 'b': impl Trait | ||
3440 | ⋮[128; 131) 'foo': impl Trait | ||
3441 | ⋮[141; 142) 'b': impl {error} | ||
3442 | ⋮[163; 166) 'foo': impl {error} | ||
3443 | ⋮[176; 177) 'd': impl {error} | ||
3444 | ⋮[193; 196) 'foo': impl {error} | ||
3445 | ⋮[206; 207) 'e': impl Trait + {error} | ||
3446 | ⋮[231; 234) 'foo': impl Trait + {error} | ||
3447 | "### | ||
3448 | ); | ||
3449 | } | ||
3450 | |||
3276 | fn type_at_pos(db: &MockDatabase, pos: FilePosition) -> String { | 3451 | fn type_at_pos(db: &MockDatabase, pos: FilePosition) -> String { |
3277 | let file = db.parse(pos.file_id).ok().unwrap(); | 3452 | let file = db.parse(pos.file_id).ok().unwrap(); |
3278 | let expr = algo::find_node_at_offset::<ast::Expr>(file.syntax(), pos.offset).unwrap(); | 3453 | let expr = algo::find_node_at_offset::<ast::Expr>(file.syntax(), pos.offset).unwrap(); |