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-rw-r--r--crates/ra_hir_ty/src/tests.rs27
-rw-r--r--crates/ra_hir_ty/src/tests/coercion.rs29
-rw-r--r--crates/ra_hir_ty/src/tests/never_type.rs315
3 files changed, 185 insertions, 186 deletions
diff --git a/crates/ra_hir_ty/src/tests.rs b/crates/ra_hir_ty/src/tests.rs
index c972bf845..5eaf25a77 100644
--- a/crates/ra_hir_ty/src/tests.rs
+++ b/crates/ra_hir_ty/src/tests.rs
@@ -10,6 +10,7 @@ mod display_source_code;
10 10
11use std::sync::Arc; 11use std::sync::Arc;
12 12
13use expect::Expect;
13use hir_def::{ 14use hir_def::{
14 body::{BodySourceMap, SyntheticSyntax}, 15 body::{BodySourceMap, SyntheticSyntax},
15 child_by_source::ChildBySource, 16 child_by_source::ChildBySource,
@@ -344,3 +345,29 @@ fn typing_whitespace_inside_a_function_should_not_invalidate_types() {
344 assert!(!format!("{:?}", events).contains("infer"), "{:#?}", events) 345 assert!(!format!("{:?}", events).contains("infer"), "{:#?}", events)
345 } 346 }
346} 347}
348
349// Infer with some common definitions and impls.
350fn check_infer(ra_fixture: &str, expect: Expect) {
351 let defs = r#"
352 #[lang = "sized"]
353 pub trait Sized {}
354 #[lang = "unsize"]
355 pub trait Unsize<T: ?Sized> {}
356 #[lang = "coerce_unsized"]
357 pub trait CoerceUnsized<T> {}
358
359 impl<'a, 'b: 'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<&'a U> for &'b T {}
360 impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*mut U> for *mut T {}
361 "#;
362
363 // Append to the end to keep positions unchanged.
364 let mut actual = infer(&format!("{}{}", ra_fixture, defs));
365 actual.push('\n');
366 expect.assert_eq(&actual);
367}
368
369fn check_infer_with_mismatches(ra_fixture: &str, expect: Expect) {
370 let mut actual = infer_with_mismatches(ra_fixture, true);
371 actual.push('\n');
372 expect.assert_eq(&actual);
373}
diff --git a/crates/ra_hir_ty/src/tests/coercion.rs b/crates/ra_hir_ty/src/tests/coercion.rs
index 7704774b7..823abddc6 100644
--- a/crates/ra_hir_ty/src/tests/coercion.rs
+++ b/crates/ra_hir_ty/src/tests/coercion.rs
@@ -1,32 +1,7 @@
1use expect::expect;
1use test_utils::mark; 2use test_utils::mark;
2 3
3use expect::{expect, Expect}; 4use super::{check_infer, check_infer_with_mismatches};
4
5// Infer with some common definitions and impls.
6fn check_infer(ra_fixture: &str, expect: Expect) {
7 let defs = r#"
8 #[lang = "sized"]
9 pub trait Sized {}
10 #[lang = "unsize"]
11 pub trait Unsize<T: ?Sized> {}
12 #[lang = "coerce_unsized"]
13 pub trait CoerceUnsized<T> {}
14
15 impl<'a, 'b: 'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<&'a U> for &'b T {}
16 impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*mut U> for *mut T {}
17 "#;
18
19 // Append to the end to keep positions unchanged.
20 let mut actual = super::infer(&format!("{}{}", ra_fixture, defs));
21 actual.push('\n');
22 expect.assert_eq(&actual);
23}
24
25fn check_infer_with_mismatches(ra_fixture: &str, expect: Expect) {
26 let mut actual = super::infer_with_mismatches(ra_fixture, true);
27 actual.push('\n');
28 expect.assert_eq(&actual);
29}
30 5
31#[test] 6#[test]
32fn infer_block_expr_type_mismatch() { 7fn infer_block_expr_type_mismatch() {
diff --git a/crates/ra_hir_ty/src/tests/never_type.rs b/crates/ra_hir_ty/src/tests/never_type.rs
index 64d421d40..49538b572 100644
--- a/crates/ra_hir_ty/src/tests/never_type.rs
+++ b/crates/ra_hir_ty/src/tests/never_type.rs
@@ -1,6 +1,6 @@
1use insta::assert_snapshot; 1use expect::expect;
2 2
3use super::{check_types, infer_with_mismatches}; 3use super::{check_infer_with_mismatches, check_types};
4 4
5#[test] 5#[test]
6fn infer_never1() { 6fn infer_never1() {
@@ -240,173 +240,170 @@ fn test(a: i32) {
240 240
241#[test] 241#[test]
242fn diverging_expression_1() { 242fn diverging_expression_1() {
243 let t = infer_with_mismatches( 243 check_infer_with_mismatches(
244 r#" 244 r"
245//- /main.rs 245 //- /main.rs
246fn test1() { 246 fn test1() {
247 let x: u32 = return; 247 let x: u32 = return;
248} 248 }
249fn test2() { 249 fn test2() {
250 let x: u32 = { return; }; 250 let x: u32 = { return; };
251} 251 }
252fn test3() { 252 fn test3() {
253 let x: u32 = loop {}; 253 let x: u32 = loop {};
254} 254 }
255fn test4() { 255 fn test4() {
256 let x: u32 = { loop {} }; 256 let x: u32 = { loop {} };
257} 257 }
258fn test5() { 258 fn test5() {
259 let x: u32 = { if true { loop {}; } else { loop {}; } }; 259 let x: u32 = { if true { loop {}; } else { loop {}; } };
260} 260 }
261fn test6() { 261 fn test6() {
262 let x: u32 = { let y: u32 = { loop {}; }; }; 262 let x: u32 = { let y: u32 = { loop {}; }; };
263} 263 }
264"#, 264 ",
265 true, 265 expect![[r"
266 11..39 '{ ...urn; }': ()
267 21..22 'x': u32
268 30..36 'return': !
269 51..84 '{ ...; }; }': ()
270 61..62 'x': u32
271 70..81 '{ return; }': u32
272 72..78 'return': !
273 96..125 '{ ... {}; }': ()
274 106..107 'x': u32
275 115..122 'loop {}': !
276 120..122 '{}': ()
277 137..170 '{ ...} }; }': ()
278 147..148 'x': u32
279 156..167 '{ loop {} }': u32
280 158..165 'loop {}': !
281 163..165 '{}': ()
282 182..246 '{ ...} }; }': ()
283 192..193 'x': u32
284 201..243 '{ if t...}; } }': u32
285 203..241 'if tru... {}; }': u32
286 206..210 'true': bool
287 211..223 '{ loop {}; }': u32
288 213..220 'loop {}': !
289 218..220 '{}': ()
290 229..241 '{ loop {}; }': u32
291 231..238 'loop {}': !
292 236..238 '{}': ()
293 258..310 '{ ...; }; }': ()
294 268..269 'x': u32
295 277..307 '{ let ...; }; }': u32
296 283..284 'y': u32
297 292..304 '{ loop {}; }': u32
298 294..301 'loop {}': !
299 299..301 '{}': ()
300 "]],
266 ); 301 );
267 assert_snapshot!(t, @r###"
268 11..39 '{ ...urn; }': ()
269 21..22 'x': u32
270 30..36 'return': !
271 51..84 '{ ...; }; }': ()
272 61..62 'x': u32
273 70..81 '{ return; }': u32
274 72..78 'return': !
275 96..125 '{ ... {}; }': ()
276 106..107 'x': u32
277 115..122 'loop {}': !
278 120..122 '{}': ()
279 137..170 '{ ...} }; }': ()
280 147..148 'x': u32
281 156..167 '{ loop {} }': u32
282 158..165 'loop {}': !
283 163..165 '{}': ()
284 182..246 '{ ...} }; }': ()
285 192..193 'x': u32
286 201..243 '{ if t...}; } }': u32
287 203..241 'if tru... {}; }': u32
288 206..210 'true': bool
289 211..223 '{ loop {}; }': u32
290 213..220 'loop {}': !
291 218..220 '{}': ()
292 229..241 '{ loop {}; }': u32
293 231..238 'loop {}': !
294 236..238 '{}': ()
295 258..310 '{ ...; }; }': ()
296 268..269 'x': u32
297 277..307 '{ let ...; }; }': u32
298 283..284 'y': u32
299 292..304 '{ loop {}; }': u32
300 294..301 'loop {}': !
301 299..301 '{}': ()
302 "###);
303} 302}
304 303
305#[test] 304#[test]
306fn diverging_expression_2() { 305fn diverging_expression_2() {
307 let t = infer_with_mismatches( 306 check_infer_with_mismatches(
308 r#" 307 r#"
309//- /main.rs 308 //- /main.rs
310fn test1() { 309 fn test1() {
311 // should give type mismatch 310 // should give type mismatch
312 let x: u32 = { loop {}; "foo" }; 311 let x: u32 = { loop {}; "foo" };
313} 312 }
314"#, 313 "#,
315 true, 314 expect![[r#"
315 11..84 '{ ..." }; }': ()
316 54..55 'x': u32
317 63..81 '{ loop...foo" }': &str
318 65..72 'loop {}': !
319 70..72 '{}': ()
320 74..79 '"foo"': &str
321 63..81: expected u32, got &str
322 74..79: expected u32, got &str
323 "#]],
316 ); 324 );
317 assert_snapshot!(t, @r###"
318 11..84 '{ ..." }; }': ()
319 54..55 'x': u32
320 63..81 '{ loop...foo" }': &str
321 65..72 'loop {}': !
322 70..72 '{}': ()
323 74..79 '"foo"': &str
324 63..81: expected u32, got &str
325 74..79: expected u32, got &str
326 "###);
327} 325}
328 326
329#[test] 327#[test]
330fn diverging_expression_3_break() { 328fn diverging_expression_3_break() {
331 let t = infer_with_mismatches( 329 check_infer_with_mismatches(
332 r#" 330 r"
333//- /main.rs 331 //- /main.rs
334fn test1() { 332 fn test1() {
335 // should give type mismatch 333 // should give type mismatch
336 let x: u32 = { loop { break; } }; 334 let x: u32 = { loop { break; } };
337} 335 }
338fn test2() { 336 fn test2() {
339 // should give type mismatch 337 // should give type mismatch
340 let x: u32 = { for a in b { break; }; }; 338 let x: u32 = { for a in b { break; }; };
341 // should give type mismatch as well 339 // should give type mismatch as well
342 let x: u32 = { for a in b {}; }; 340 let x: u32 = { for a in b {}; };
343 // should give type mismatch as well 341 // should give type mismatch as well
344 let x: u32 = { for a in b { return; }; }; 342 let x: u32 = { for a in b { return; }; };
345} 343 }
346fn test3() { 344 fn test3() {
347 // should give type mismatch 345 // should give type mismatch
348 let x: u32 = { while true { break; }; }; 346 let x: u32 = { while true { break; }; };
349 // should give type mismatch as well -- there's an implicit break, even if it's never hit 347 // should give type mismatch as well -- there's an implicit break, even if it's never hit
350 let x: u32 = { while true {}; }; 348 let x: u32 = { while true {}; };
351 // should give type mismatch as well 349 // should give type mismatch as well
352 let x: u32 = { while true { return; }; }; 350 let x: u32 = { while true { return; }; };
353} 351 }
354"#, 352 ",
355 true, 353 expect![[r"
354 11..85 '{ ...} }; }': ()
355 54..55 'x': u32
356 63..82 '{ loop...k; } }': ()
357 65..80 'loop { break; }': ()
358 70..80 '{ break; }': ()
359 72..77 'break': !
360 63..82: expected u32, got ()
361 65..80: expected u32, got ()
362 97..343 '{ ...; }; }': ()
363 140..141 'x': u32
364 149..175 '{ for ...; }; }': ()
365 151..172 'for a ...eak; }': ()
366 155..156 'a': {unknown}
367 160..161 'b': {unknown}
368 162..172 '{ break; }': ()
369 164..169 'break': !
370 226..227 'x': u32
371 235..253 '{ for ... {}; }': ()
372 237..250 'for a in b {}': ()
373 241..242 'a': {unknown}
374 246..247 'b': {unknown}
375 248..250 '{}': ()
376 304..305 'x': u32
377 313..340 '{ for ...; }; }': ()
378 315..337 'for a ...urn; }': ()
379 319..320 'a': {unknown}
380 324..325 'b': {unknown}
381 326..337 '{ return; }': ()
382 328..334 'return': !
383 149..175: expected u32, got ()
384 235..253: expected u32, got ()
385 313..340: expected u32, got ()
386 355..654 '{ ...; }; }': ()
387 398..399 'x': u32
388 407..433 '{ whil...; }; }': ()
389 409..430 'while ...eak; }': ()
390 415..419 'true': bool
391 420..430 '{ break; }': ()
392 422..427 'break': !
393 537..538 'x': u32
394 546..564 '{ whil... {}; }': ()
395 548..561 'while true {}': ()
396 554..558 'true': bool
397 559..561 '{}': ()
398 615..616 'x': u32
399 624..651 '{ whil...; }; }': ()
400 626..648 'while ...urn; }': ()
401 632..636 'true': bool
402 637..648 '{ return; }': ()
403 639..645 'return': !
404 407..433: expected u32, got ()
405 546..564: expected u32, got ()
406 624..651: expected u32, got ()
407 "]],
356 ); 408 );
357 assert_snapshot!(t, @r###"
358 11..85 '{ ...} }; }': ()
359 54..55 'x': u32
360 63..82 '{ loop...k; } }': ()
361 65..80 'loop { break; }': ()
362 70..80 '{ break; }': ()
363 72..77 'break': !
364 63..82: expected u32, got ()
365 65..80: expected u32, got ()
366 97..343 '{ ...; }; }': ()
367 140..141 'x': u32
368 149..175 '{ for ...; }; }': ()
369 151..172 'for a ...eak; }': ()
370 155..156 'a': {unknown}
371 160..161 'b': {unknown}
372 162..172 '{ break; }': ()
373 164..169 'break': !
374 226..227 'x': u32
375 235..253 '{ for ... {}; }': ()
376 237..250 'for a in b {}': ()
377 241..242 'a': {unknown}
378 246..247 'b': {unknown}
379 248..250 '{}': ()
380 304..305 'x': u32
381 313..340 '{ for ...; }; }': ()
382 315..337 'for a ...urn; }': ()
383 319..320 'a': {unknown}
384 324..325 'b': {unknown}
385 326..337 '{ return; }': ()
386 328..334 'return': !
387 149..175: expected u32, got ()
388 235..253: expected u32, got ()
389 313..340: expected u32, got ()
390 355..654 '{ ...; }; }': ()
391 398..399 'x': u32
392 407..433 '{ whil...; }; }': ()
393 409..430 'while ...eak; }': ()
394 415..419 'true': bool
395 420..430 '{ break; }': ()
396 422..427 'break': !
397 537..538 'x': u32
398 546..564 '{ whil... {}; }': ()
399 548..561 'while true {}': ()
400 554..558 'true': bool
401 559..561 '{}': ()
402 615..616 'x': u32
403 624..651 '{ whil...; }; }': ()
404 626..648 'while ...urn; }': ()
405 632..636 'true': bool
406 637..648 '{ return; }': ()
407 639..645 'return': !
408 407..433: expected u32, got ()
409 546..564: expected u32, got ()
410 624..651: expected u32, got ()
411 "###);
412} 409}