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authorDawer <[email protected]>2021-05-12 08:50:22 +0100
committerDawer <[email protected]>2021-05-31 20:49:44 +0100
commit977ba46bb113c9e9ec159f01a72f51a0a7b92c1b (patch)
tree32180c33ddfc3ebcec23fe741fe9bad48a0e5aa8 /crates/hir_ty/src/diagnostics
parent4cce7a6407821f456741a8d512ae31da3128c84f (diff)
Test match guards, reference patterns
Diffstat (limited to 'crates/hir_ty/src/diagnostics')
-rw-r--r--crates/hir_ty/src/diagnostics/match_check.rs51
1 files changed, 51 insertions, 0 deletions
diff --git a/crates/hir_ty/src/diagnostics/match_check.rs b/crates/hir_ty/src/diagnostics/match_check.rs
index 061ef754d..5fb98ff35 100644
--- a/crates/hir_ty/src/diagnostics/match_check.rs
+++ b/crates/hir_ty/src/diagnostics/match_check.rs
@@ -1126,6 +1126,25 @@ fn main() {
1126 ); 1126 );
1127 } 1127 }
1128 1128
1129 #[test]
1130 fn match_guard() {
1131 check_diagnostics(
1132 r#"
1133fn main() {
1134 match true {
1135 true if false => {}
1136 true => {}
1137 false => {}
1138 }
1139 match true {
1140 //^^^^ Missing match arm
1141 true if false => {}
1142 false => {}
1143}
1144"#,
1145 );
1146 }
1147
1129 mod false_negatives { 1148 mod false_negatives {
1130 //! The implementation of match checking here is a work in progress. As we roll this out, we 1149 //! The implementation of match checking here is a work in progress. As we roll this out, we
1131 //! prefer false negatives to false positives (ideally there would be no false positives). This 1150 //! prefer false negatives to false positives (ideally there would be no false positives). This
@@ -1153,5 +1172,37 @@ fn main() {
1153"#, 1172"#,
1154 ); 1173 );
1155 } 1174 }
1175
1176 #[test]
1177 fn reference_patterns_at_top_level() {
1178 check_diagnostics(
1179 r#"
1180fn main() {
1181 match &false {
1182 &true => {}
1183 // ^^^^^ Internal: match check bailed out
1184 }
1185}
1186 "#,
1187 );
1188 }
1189
1190 #[test]
1191 fn reference_patterns_in_fields() {
1192 check_diagnostics(
1193 r#"
1194fn main() {
1195 match (&false,) {
1196 (true,) => {}
1197 // ^^^^^^^ Internal: match check bailed out
1198 }
1199 match (&false,) {
1200 (&true,) => {}
1201 // ^^^^^^^^ Internal: match check bailed out
1202 }
1203}
1204 "#,
1205 );
1206 }
1156 } 1207 }
1157} 1208}