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-rw-r--r--crates/assists/src/handlers/remove_unused_param.rs83
1 files changed, 82 insertions, 1 deletions
diff --git a/crates/assists/src/handlers/remove_unused_param.rs b/crates/assists/src/handlers/remove_unused_param.rs
index 5fccca54b..1ff5e92b0 100644
--- a/crates/assists/src/handlers/remove_unused_param.rs
+++ b/crates/assists/src/handlers/remove_unused_param.rs
@@ -73,7 +73,8 @@ fn process_usage(
73 let source_file = ctx.sema.parse(usage.file_range.file_id); 73 let source_file = ctx.sema.parse(usage.file_range.file_id);
74 let call_expr: ast::CallExpr = 74 let call_expr: ast::CallExpr =
75 find_node_at_range(source_file.syntax(), usage.file_range.range)?; 75 find_node_at_range(source_file.syntax(), usage.file_range.range)?;
76 if call_expr.expr()?.syntax().text_range() != usage.file_range.range { 76 let call_expr_range = call_expr.expr()?.syntax().text_range();
77 if !call_expr_range.contains_range(usage.file_range.range) {
77 return None; 78 return None;
78 } 79 }
79 let arg = call_expr.arg_list()?.args().nth(arg_to_remove)?; 80 let arg = call_expr.arg_list()?.args().nth(arg_to_remove)?;
@@ -118,6 +119,53 @@ fn b() { foo(9, ) }
118 } 119 }
119 120
120 #[test] 121 #[test]
122 fn remove_unused_qualified_call() {
123 check_assist(
124 remove_unused_param,
125 r#"
126mod bar { pub fn foo(x: i32, <|>y: i32) { x; } }
127fn b() { bar::foo(9, 2) }
128"#,
129 r#"
130mod bar { pub fn foo(x: i32) { x; } }
131fn b() { bar::foo(9) }
132"#,
133 );
134 }
135
136 #[test]
137 fn remove_unused_turbofished_func() {
138 check_assist(
139 remove_unused_param,
140 r#"
141pub fn foo<T>(x: T, <|>y: i32) { x; }
142fn b() { foo::<i32>(9, 2) }
143"#,
144 r#"
145pub fn foo<T>(x: T) { x; }
146fn b() { foo::<i32>(9) }
147"#,
148 );
149 }
150
151 #[test]
152 fn remove_unused_generic_unused_param_func() {
153 check_assist(
154 remove_unused_param,
155 r#"
156pub fn foo<T>(x: i32, <|>y: T) { x; }
157fn b() { foo::<i32>(9, 2) }
158fn b2() { foo(9, 2) }
159"#,
160 r#"
161pub fn foo<T>(x: i32) { x; }
162fn b() { foo::<i32>(9) }
163fn b2() { foo(9) }
164"#,
165 );
166 }
167
168 #[test]
121 fn keep_used() { 169 fn keep_used() {
122 mark::check!(keep_used); 170 mark::check!(keep_used);
123 check_assist_not_applicable( 171 check_assist_not_applicable(
@@ -128,4 +176,37 @@ fn main() { foo(9, 2) }
128"#, 176"#,
129 ); 177 );
130 } 178 }
179
180 #[test]
181 fn remove_across_files() {
182 check_assist(
183 remove_unused_param,
184 r#"
185//- /main.rs
186fn foo(x: i32, <|>y: i32) { x; }
187
188mod foo;
189
190//- /foo.rs
191use super::foo;
192
193fn bar() {
194 let _ = foo(1, 2);
195}
196"#,
197 r#"
198//- /main.rs
199fn foo(x: i32) { x; }
200
201mod foo;
202
203//- /foo.rs
204use super::foo;
205
206fn bar() {
207 let _ = foo(1);
208}
209"#,
210 )
211 }
131} 212}