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authorbors[bot] <26634292+bors[bot]@users.noreply.github.com>2020-11-17 13:34:46 +0000
committerGitHub <[email protected]>2020-11-17 13:34:46 +0000
commit35ace3e265bd3f85b532cda8848cbf119effcc29 (patch)
tree2ac6ed3ce23af719e18c521c894d63504f6eb4d2 /crates/assists/src/handlers
parentd4c970d1f21f014eddb550a2c33cacbf9546889d (diff)
parent8c6f933773df872a394fdcae890b9c0c42bdbc6c (diff)
Merge #6574
6574: **Unwrap Block** supports stand-alone blocks r=matklad a=matklad bors r+ 🤖 Co-authored-by: Aleksey Kladov <[email protected]>
Diffstat (limited to 'crates/assists/src/handlers')
-rw-r--r--crates/assists/src/handlers/unwrap_block.rs73
1 files changed, 69 insertions, 4 deletions
diff --git a/crates/assists/src/handlers/unwrap_block.rs b/crates/assists/src/handlers/unwrap_block.rs
index 36ef871b9..496714243 100644
--- a/crates/assists/src/handlers/unwrap_block.rs
+++ b/crates/assists/src/handlers/unwrap_block.rs
@@ -3,7 +3,7 @@ use syntax::{
3 self, 3 self,
4 edit::{AstNodeEdit, IndentLevel}, 4 edit::{AstNodeEdit, IndentLevel},
5 }, 5 },
6 AstNode, TextRange, T, 6 AstNode, SyntaxKind, TextRange, T,
7}; 7};
8 8
9use crate::{utils::unwrap_trivial_block, AssistContext, AssistId, AssistKind, Assists}; 9use crate::{utils::unwrap_trivial_block, AssistContext, AssistId, AssistKind, Assists};
@@ -31,11 +31,21 @@ pub(crate) fn unwrap_block(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
31 31
32 let l_curly_token = ctx.find_token_syntax_at_offset(T!['{'])?; 32 let l_curly_token = ctx.find_token_syntax_at_offset(T!['{'])?;
33 let mut block = ast::BlockExpr::cast(l_curly_token.parent())?; 33 let mut block = ast::BlockExpr::cast(l_curly_token.parent())?;
34 let target = block.syntax().text_range();
34 let mut parent = block.syntax().parent()?; 35 let mut parent = block.syntax().parent()?;
35 if ast::MatchArm::can_cast(parent.kind()) { 36 if ast::MatchArm::can_cast(parent.kind()) {
36 parent = parent.ancestors().find(|it| ast::MatchExpr::can_cast(it.kind()))? 37 parent = parent.ancestors().find(|it| ast::MatchExpr::can_cast(it.kind()))?
37 } 38 }
38 39
40 if matches!(parent.kind(), SyntaxKind::BLOCK_EXPR | SyntaxKind::EXPR_STMT) {
41 return acc.add(assist_id, assist_label, target, |builder| {
42 builder.replace(
43 block.syntax().text_range(),
44 update_expr_string(block.to_string(), &[' ', '{', '\n']),
45 );
46 });
47 }
48
39 let parent = ast::Expr::cast(parent)?; 49 let parent = ast::Expr::cast(parent)?;
40 50
41 match parent.clone() { 51 match parent.clone() {
@@ -48,7 +58,6 @@ pub(crate) fn unwrap_block(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
48 // For `else if` blocks 58 // For `else if` blocks
49 let ancestor_then_branch = ancestor.then_branch()?; 59 let ancestor_then_branch = ancestor.then_branch()?;
50 60
51 let target = then_branch.syntax().text_range();
52 return acc.add(assist_id, assist_label, target, |edit| { 61 return acc.add(assist_id, assist_label, target, |edit| {
53 let range_to_del_else_if = TextRange::new( 62 let range_to_del_else_if = TextRange::new(
54 ancestor_then_branch.syntax().text_range().end(), 63 ancestor_then_branch.syntax().text_range().end(),
@@ -68,7 +77,6 @@ pub(crate) fn unwrap_block(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
68 }); 77 });
69 } 78 }
70 } else { 79 } else {
71 let target = block.syntax().text_range();
72 return acc.add(assist_id, assist_label, target, |edit| { 80 return acc.add(assist_id, assist_label, target, |edit| {
73 let range_to_del = TextRange::new( 81 let range_to_del = TextRange::new(
74 then_branch.syntax().text_range().end(), 82 then_branch.syntax().text_range().end(),
@@ -84,7 +92,6 @@ pub(crate) fn unwrap_block(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
84 }; 92 };
85 93
86 let unwrapped = unwrap_trivial_block(block); 94 let unwrapped = unwrap_trivial_block(block);
87 let target = unwrapped.syntax().text_range();
88 acc.add(assist_id, assist_label, target, |builder| { 95 acc.add(assist_id, assist_label, target, |builder| {
89 builder.replace( 96 builder.replace(
90 parent.syntax().text_range(), 97 parent.syntax().text_range(),
@@ -112,6 +119,64 @@ mod tests {
112 use super::*; 119 use super::*;
113 120
114 #[test] 121 #[test]
122 fn unwrap_tail_expr_block() {
123 check_assist(
124 unwrap_block,
125 r#"
126fn main() {
127 <|>{
128 92
129 }
130}
131"#,
132 r#"
133fn main() {
134 92
135}
136"#,
137 )
138 }
139
140 #[test]
141 fn unwrap_stmt_expr_block() {
142 check_assist(
143 unwrap_block,
144 r#"
145fn main() {
146 <|>{
147 92;
148 }
149 ()
150}
151"#,
152 r#"
153fn main() {
154 92;
155 ()
156}
157"#,
158 );
159 // Pedantically, we should add an `;` here...
160 check_assist(
161 unwrap_block,
162 r#"
163fn main() {
164 <|>{
165 92
166 }
167 ()
168}
169"#,
170 r#"
171fn main() {
172 92
173 ()
174}
175"#,
176 );
177 }
178
179 #[test]
115 fn simple_if() { 180 fn simple_if() {
116 check_assist( 181 check_assist(
117 unwrap_block, 182 unwrap_block,