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-rw-r--r--crates/ra_hir/src/ty/tests.rs23
-rw-r--r--crates/ra_hir/src/ty/tests/data/array.txt38
2 files changed, 61 insertions, 0 deletions
diff --git a/crates/ra_hir/src/ty/tests.rs b/crates/ra_hir/src/ty/tests.rs
index 5d7bc25cc..09c8644f7 100644
--- a/crates/ra_hir/src/ty/tests.rs
+++ b/crates/ra_hir/src/ty/tests.rs
@@ -334,6 +334,29 @@ fn test(x: &str, y: isize) {
334 ); 334 );
335} 335}
336 336
337#[test]
338fn infer_array() {
339 check_inference(
340 r#"
341fn test(x: &str, y: isize) {
342 let a = [x];
343 let b = [a, a];
344 let c = [b, b];
345
346 let d = [y];
347 let e = [d, d];
348 let f = [e, e];
349
350 // we have not infered these case yet.
351 let g = [1, 2];
352 let h = ["a", "b"];
353 let b = [a, ["b"]];
354}
355"#,
356 "array.txt",
357 );
358}
359
337fn infer(content: &str) -> String { 360fn infer(content: &str) -> String {
338 let (db, _, file_id) = MockDatabase::with_single_file(content); 361 let (db, _, file_id) = MockDatabase::with_single_file(content);
339 let source_file = db.source_file(file_id); 362 let source_file = db.source_file(file_id);
diff --git a/crates/ra_hir/src/ty/tests/data/array.txt b/crates/ra_hir/src/ty/tests/data/array.txt
new file mode 100644
index 000000000..7711e378b
--- /dev/null
+++ b/crates/ra_hir/src/ty/tests/data/array.txt
@@ -0,0 +1,38 @@
1[9; 10) 'x': &str
2[18; 19) 'y': isize
3[28; 258) '{ ..."]]; }': ()
4[38; 39) 'a': [&str,]
5[42; 45) '[x]': [&str,]
6[43; 44) 'x': &str
7[55; 56) 'b': [[&str,], [&str,]]
8[59; 65) '[a, a]': [[&str,], [&str,]]
9[60; 61) 'a': [&str,]
10[63; 64) 'a': [&str,]
11[75; 76) 'c': [[[&str,], [&str,]], [[&str,], [&str,]]]
12[79; 85) '[b, b]': [[[&str,], [&str,]], [[&str,], [&str,]]]
13[80; 81) 'b': [[&str,], [&str,]]
14[83; 84) 'b': [[&str,], [&str,]]
15[96; 97) 'd': [isize,]
16[100; 103) '[y]': [isize,]
17[101; 102) 'y': isize
18[113; 114) 'e': [[isize,], [isize,]]
19[117; 123) '[d, d]': [[isize,], [isize,]]
20[118; 119) 'd': [isize,]
21[121; 122) 'd': [isize,]
22[133; 134) 'f': [[[isize,], [isize,]], [[isize,], [isize,]]]
23[137; 143) '[e, e]': [[[isize,], [isize,]], [[isize,], [isize,]]]
24[138; 139) 'e': [[isize,], [isize,]]
25[141; 142) 'e': [[isize,], [isize,]]
26[197; 198) 'g': [_, _]
27[201; 207) '[1, 2]': [_, _]
28[202; 203) '1': [unknown]
29[205; 206) '2': [unknown]
30[217; 218) 'h': [_, _]
31[221; 231) '["a", "b"]': [_, _]
32[222; 225) '"a"': [unknown]
33[227; 230) '"b"': [unknown]
34[241; 242) 'b': [[&str,], [_,]]
35[245; 255) '[a, ["b"]]': [[&str,], [_,]]
36[246; 247) 'a': [&str,]
37[249; 254) '["b"]': [_,]
38[250; 253) '"b"': [unknown]