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fix use std::{self}

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This commit is contained in:
gfreezy 2018-12-27 00:51:27 +08:00
parent 16996e9947
commit cd60998b9b
3 changed files with 43 additions and 13 deletions
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52
crates/ra_editor/src/lib.rs
View file

@ -129,14 +129,17 @@ fn check_unnecessary_braces_in_use_statement(file: &SourceFileNode) -> Vec<Diagn
if use_tree_list.use_trees().count() == 1 {
let range = use_tree_list.syntax().range();
// use_tree_list always has one child, so we use unwrap directly here.
let to_replace = typing::single_use_tree(use_tree_list)
.unwrap()
.syntax()
.text()
.to_string();
let mut edit_builder = TextEditBuilder::new();
edit_builder.delete(range);
edit_builder.insert(range.start(), to_replace);
let single_use_tree: ast::UseTree = use_tree_list.use_trees().next().unwrap();
let edit = text_edit_for_remove_unnecessary_braces_with_self_in_use_statement(
single_use_tree,
)
.unwrap_or_else(|| {
let to_replace = single_use_tree.syntax().text().to_string();
let mut edit_builder = TextEditBuilder::new();
edit_builder.delete(range);
edit_builder.insert(range.start(), to_replace);
edit_builder.finish()
});
diagnostics.push(Diagnostic {
range: range,
@ -144,7 +147,7 @@ fn check_unnecessary_braces_in_use_statement(file: &SourceFileNode) -> Vec<Diagn
severity: Severity::WeakWarning,
fix: Some(LocalEdit {
label: "Remove unnecessary braces".to_string(),
edit: edit_builder.finish(),
edit: edit,
cursor_position: None,
}),
})
@ -155,6 +158,28 @@ fn check_unnecessary_braces_in_use_statement(file: &SourceFileNode) -> Vec<Diagn
diagnostics
}
fn text_edit_for_remove_unnecessary_braces_with_self_in_use_statement(
single_use_tree: ast::UseTree,
) -> Option<TextEdit> {
let use_tree_list_node = single_use_tree.syntax().parent()?;
if single_use_tree
.path()?
.segment()?
.syntax()
.first_child()?
.kind()
== SyntaxKind::SELF_KW
{
let start = use_tree_list_node.prev_sibling()?.range().start();
let end = use_tree_list_node.range().end();
let range = TextRange::from_to(start, end);
let mut edit_builder = TextEditBuilder::new();
edit_builder.delete(range);
return Some(edit_builder.finish());
}
None
}
pub fn syntax_tree(file: &SourceFileNode) -> String {
::ra_syntax::utils::dump_tree(file.syntax())
}
@ -191,8 +216,9 @@ pub fn find_node_at_offset<'a, N: AstNode<'a>>(
#[cfg(test)]
mod tests {
use crate::test_utils::{add_cursor, assert_eq_dbg, assert_eq_text, extract_offset};
use super::*;
use crate::test_utils::{add_cursor, assert_eq_dbg, extract_offset, assert_eq_text};
#[test]
fn test_highlighting() {
@ -261,6 +287,7 @@ fn test_foo() {}
use a;
use {b};
use a::{c};
use a::{self};
use a::{c, d::e};
use a::{c, d::{e}};
fn main() {}
@ -268,7 +295,10 @@ fn main() {}
);
let diagnostics = check_unnecessary_braces_in_use_statement(&file);
assert_eq_dbg(
"[Diagnostic { range: [12; 15), msg: \"Unnecessary braces in use statement\", severity: WeakWarning, fix: Some(LocalEdit { label: \"Remove unnecessary braces\", edit: TextEdit { atoms: [AtomTextEdit { delete: [12; 12), insert: \"b\" }, AtomTextEdit { delete: [12; 15), insert: \"\" }] }, cursor_position: None }) }, Diagnostic { range: [24; 27), msg: \"Unnecessary braces in use statement\", severity: WeakWarning, fix: Some(LocalEdit { label: \"Remove unnecessary braces\", edit: TextEdit { atoms: [AtomTextEdit { delete: [24; 24), insert: \"c\" }, AtomTextEdit { delete: [24; 27), insert: \"\" }] }, cursor_position: None }) }, Diagnostic { range: [61; 64), msg: \"Unnecessary braces in use statement\", severity: WeakWarning, fix: Some(LocalEdit { label: \"Remove unnecessary braces\", edit: TextEdit { atoms: [AtomTextEdit { delete: [61; 61), insert: \"e\" }, AtomTextEdit { delete: [61; 64), insert: \"\" }] }, cursor_position: None }) }]",
r#"[Diagnostic { range: [12; 15), msg: "Unnecessary braces in use statement", severity: WeakWarning, fix: Some(LocalEdit { label: "Remove unnecessary braces", edit: TextEdit { atoms: [AtomTextEdit { delete: [12; 12), insert: "b" }, AtomTextEdit { delete: [12; 15), insert: "" }] }, cursor_position: None }) },
Diagnostic { range: [24; 27), msg: "Unnecessary braces in use statement", severity: WeakWarning, fix: Some(LocalEdit { label: "Remove unnecessary braces", edit: TextEdit { atoms: [AtomTextEdit { delete: [24; 24), insert: "c" }, AtomTextEdit { delete: [24; 27), insert: "" }] }, cursor_position: None }) },
Diagnostic { range: [36; 42), msg: "Unnecessary braces in use statement", severity: WeakWarning, fix: Some(LocalEdit { label: "Remove unnecessary braces", edit: TextEdit { atoms: [AtomTextEdit { delete: [34; 42), insert: "" }] }, cursor_position: None }) },
Diagnostic { range: [76; 79), msg: "Unnecessary braces in use statement", severity: WeakWarning, fix: Some(LocalEdit { label: "Remove unnecessary braces", edit: TextEdit { atoms: [AtomTextEdit { delete: [76; 76), insert: "e" }, AtomTextEdit { delete: [76; 79), insert: "" }] }, cursor_position: None }) }]"#,
&diagnostics,
)
}

2
crates/ra_editor/src/typing.rs
View file

@ -254,7 +254,7 @@ fn join_single_use_tree(edit: &mut TextEditBuilder, node: SyntaxNodeRef) -> Opti
Some(())
}
pub(crate) fn single_use_tree(tree_list: ast::UseTreeList) -> Option<ast::UseTree> {
fn single_use_tree(tree_list: ast::UseTreeList) -> Option<ast::UseTree> {
let sub_use_trees = tree_list.use_trees().count();
if sub_use_trees != 1 {
return None;

2
crates/tools/src/lib.rs
View file

@ -29,7 +29,7 @@ pub fn collect_tests(s: &str) -> Vec<(usize, Test)> {
let prefix = "// ";
let comment_blocks = s
.lines()
.map(str::trim_left)
.map(str::trim_start)
.enumerate()
.group_by(|(_idx, line)| line.starts_with(prefix));