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-rw-r--r--crates/ide_assists/src/handlers/extract_variable.rs73
1 files changed, 55 insertions, 18 deletions
diff --git a/crates/ide_assists/src/handlers/extract_variable.rs b/crates/ide_assists/src/handlers/extract_variable.rs
index 7a32483dc..136b9a55b 100644
--- a/crates/ide_assists/src/handlers/extract_variable.rs
+++ b/crates/ide_assists/src/handlers/extract_variable.rs
@@ -2,7 +2,8 @@ use stdx::format_to;
2use syntax::{ 2use syntax::{
3 ast::{self, AstNode}, 3 ast::{self, AstNode},
4 SyntaxKind::{ 4 SyntaxKind::{
5 BLOCK_EXPR, BREAK_EXPR, CLOSURE_EXPR, COMMENT, LOOP_EXPR, MATCH_ARM, PATH_EXPR, RETURN_EXPR, 5 BLOCK_EXPR, BREAK_EXPR, CLOSURE_EXPR, COMMENT, LOOP_EXPR, MATCH_ARM, MATCH_GUARD,
6 PATH_EXPR, RETURN_EXPR,
6 }, 7 },
7 SyntaxNode, 8 SyntaxNode,
8}; 9};
@@ -147,9 +148,18 @@ impl Anchor {
147 } 148 }
148 149
149 if let Some(parent) = node.parent() { 150 if let Some(parent) = node.parent() {
150 if parent.kind() == MATCH_ARM || parent.kind() == CLOSURE_EXPR { 151 if parent.kind() == CLOSURE_EXPR {
152 cov_mark::hit!(test_extract_var_in_closure_no_block);
151 return Some(Anchor::WrapInBlock(node)); 153 return Some(Anchor::WrapInBlock(node));
152 } 154 }
155 if parent.kind() == MATCH_ARM {
156 if node.kind() == MATCH_GUARD {
157 cov_mark::hit!(test_extract_var_in_match_guard);
158 } else {
159 cov_mark::hit!(test_extract_var_in_match_arm_no_block);
160 return Some(Anchor::WrapInBlock(node));
161 }
162 }
153 } 163 }
154 164
155 if let Some(stmt) = ast::Stmt::cast(node.clone()) { 165 if let Some(stmt) = ast::Stmt::cast(node.clone()) {
@@ -280,9 +290,10 @@ fn foo() {
280 290
281 #[test] 291 #[test]
282 fn test_extract_var_in_match_arm_no_block() { 292 fn test_extract_var_in_match_arm_no_block() {
293 cov_mark::check!(test_extract_var_in_match_arm_no_block);
283 check_assist( 294 check_assist(
284 extract_variable, 295 extract_variable,
285 " 296 r#"
286fn main() { 297fn main() {
287 let x = true; 298 let x = true;
288 let tuple = match x { 299 let tuple = match x {
@@ -290,8 +301,8 @@ fn main() {
290 _ => (0, false) 301 _ => (0, false)
291 }; 302 };
292} 303}
293", 304"#,
294 " 305 r#"
295fn main() { 306fn main() {
296 let x = true; 307 let x = true;
297 let tuple = match x { 308 let tuple = match x {
@@ -299,7 +310,7 @@ fn main() {
299 _ => (0, false) 310 _ => (0, false)
300 }; 311 };
301} 312}
302", 313"#,
303 ); 314 );
304 } 315 }
305 316
@@ -307,7 +318,7 @@ fn main() {
307 fn test_extract_var_in_match_arm_with_block() { 318 fn test_extract_var_in_match_arm_with_block() {
308 check_assist( 319 check_assist(
309 extract_variable, 320 extract_variable,
310 " 321 r#"
311fn main() { 322fn main() {
312 let x = true; 323 let x = true;
313 let tuple = match x { 324 let tuple = match x {
@@ -318,8 +329,8 @@ fn main() {
318 _ => (0, false) 329 _ => (0, false)
319 }; 330 };
320} 331}
321", 332"#,
322 " 333 r#"
323fn main() { 334fn main() {
324 let x = true; 335 let x = true;
325 let tuple = match x { 336 let tuple = match x {
@@ -331,24 +342,50 @@ fn main() {
331 _ => (0, false) 342 _ => (0, false)
332 }; 343 };
333} 344}
334", 345"#,
346 );
347 }
348
349 #[test]
350 fn test_extract_var_in_match_guard() {
351 cov_mark::check!(test_extract_var_in_match_guard);
352 check_assist(
353 extract_variable,
354 r#"
355fn main() {
356 match () {
357 () if $010 > 0$0 => 1
358 _ => 2
359 };
360}
361"#,
362 r#"
363fn main() {
364 let $0var_name = 10 > 0;
365 match () {
366 () if var_name => 1
367 _ => 2
368 };
369}
370"#,
335 ); 371 );
336 } 372 }
337 373
338 #[test] 374 #[test]
339 fn test_extract_var_in_closure_no_block() { 375 fn test_extract_var_in_closure_no_block() {
376 cov_mark::check!(test_extract_var_in_closure_no_block);
340 check_assist( 377 check_assist(
341 extract_variable, 378 extract_variable,
342 " 379 r#"
343fn main() { 380fn main() {
344 let lambda = |x: u32| $0x * 2$0; 381 let lambda = |x: u32| $0x * 2$0;
345} 382}
346", 383"#,
347 " 384 r#"
348fn main() { 385fn main() {
349 let lambda = |x: u32| { let $0var_name = x * 2; var_name }; 386 let lambda = |x: u32| { let $0var_name = x * 2; var_name };
350} 387}
351", 388"#,
352 ); 389 );
353 } 390 }
354 391
@@ -356,16 +393,16 @@ fn main() {
356 fn test_extract_var_in_closure_with_block() { 393 fn test_extract_var_in_closure_with_block() {
357 check_assist( 394 check_assist(
358 extract_variable, 395 extract_variable,
359 " 396 r#"
360fn main() { 397fn main() {
361 let lambda = |x: u32| { $0x * 2$0 }; 398 let lambda = |x: u32| { $0x * 2$0 };
362} 399}
363", 400"#,
364 " 401 r#"
365fn main() { 402fn main() {
366 let lambda = |x: u32| { let $0var_name = x * 2; var_name }; 403 let lambda = |x: u32| { let $0var_name = x * 2; var_name };
367} 404}
368", 405"#,
369 ); 406 );
370 } 407 }
371 408