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Auto merge of #15857 - Young-Flash:fix, r=Veykril
fix: remove parenthesis should ensure space
close https://github.com/rust-lang/rust-analyzer/issues/15844
| -rw-r--r-- | crates/ide-assists/src/handlers/remove_parentheses.rs | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/crates/ide-assists/src/handlers/remove_parentheses.rs b/crates/ide-assists/src/handlers/remove_parentheses.rs index ffc32f8049..0281b29cd4 100644 --- a/crates/ide-assists/src/handlers/remove_parentheses.rs +++ b/crates/ide-assists/src/handlers/remove_parentheses.rs @@ -1,4 +1,4 @@ -use syntax::{ast, AstNode}; +use syntax::{ast, AstNode, SyntaxKind, T}; use crate::{AssistContext, AssistId, AssistKind, Assists}; @@ -39,7 +39,19 @@ pub(crate) fn remove_parentheses(acc: &mut Assists, ctx: &AssistContext<'_>) -> AssistId("remove_parentheses", AssistKind::Refactor), "Remove redundant parentheses", target, - |builder| builder.replace_ast(parens.into(), expr), + |builder| { + let prev_token = parens.syntax().first_token().and_then(|it| it.prev_token()); + let need_to_add_ws = match prev_token { + Some(it) => { + let tokens = vec![T![&], T![!], T!['('], T!['['], T!['{']]; + it.kind() != SyntaxKind::WHITESPACE && !tokens.contains(&it.kind()) + } + None => false, + }; + let expr = if need_to_add_ws { format!(" {}", expr) } else { expr.to_string() }; + + builder.replace(parens.syntax().text_range(), expr) + }, ) } @@ -50,6 +62,15 @@ mod tests { use super::*; #[test] + fn remove_parens_space() { + check_assist( + remove_parentheses, + r#"fn f() { match$0(true) {} }"#, + r#"fn f() { match true {} }"#, + ); + } + + #[test] fn remove_parens_simple() { check_assist(remove_parentheses, r#"fn f() { $0(2) + 2; }"#, r#"fn f() { 2 + 2; }"#); check_assist(remove_parentheses, r#"fn f() { ($02) + 2; }"#, r#"fn f() { 2 + 2; }"#); @@ -94,8 +115,8 @@ mod tests { check_assist(remove_parentheses, r#"fn f() { f(($02 + 2)); }"#, r#"fn f() { f(2 + 2); }"#); check_assist( remove_parentheses, - r#"fn f() { (1<2)&&$0(3>4); }"#, - r#"fn f() { (1<2)&&3>4; }"#, + r#"fn f() { (1<2) &&$0(3>4); }"#, + r#"fn f() { (1<2) && 3>4; }"#, ); } @@ -164,8 +185,8 @@ mod tests { fn remove_parens_weird_places() { check_assist( remove_parentheses, - r#"fn f() { match () { _=>$0(()) } }"#, - r#"fn f() { match () { _=>() } }"#, + r#"fn f() { match () { _ =>$0(()) } }"#, + r#"fn f() { match () { _ => () } }"#, ); check_assist( |