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Implement line<->block comment assist

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This commit is contained in:
John Renner 2021-02-24 11:25:10 -08:00
parent a307e4f31f
commit 9eecba4dbf
4 changed files with 427 additions and 5 deletions
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11
crates/syntax/src/ast/edit.rs
View file

@ -595,11 +595,14 @@ impl ops::Add<u8> for IndentLevel {
impl IndentLevel {
pub fn from_node(node: &SyntaxNode) -> IndentLevel {
let first_token = match node.first_token() {
Some(it) => it,
match node.first_token() {
Some(it) => Self::from_token(&it),
None => return IndentLevel(0),
};
for ws in prev_tokens(first_token).filter_map(ast::Whitespace::cast) {
}
}
pub fn from_token(token: &SyntaxToken) -> IndentLevel {
for ws in prev_tokens(token.clone()).filter_map(ast::Whitespace::cast) {
let text = ws.syntax().text();
if let Some(pos) = text.rfind('\n') {
let level = text[pos + 1..].chars().count() / 4;

3
crates/syntax/src/ast/token_ext.rs
View file

@ -85,8 +85,9 @@ pub enum CommentPlacement {
}
impl CommentKind {
const BY_PREFIX: [(&'static str, CommentKind); 8] = [
const BY_PREFIX: [(&'static str, CommentKind); 9] = [
("/**/", CommentKind { shape: CommentShape::Block, doc: None }),
("/***", CommentKind { shape: CommentShape::Block, doc: None }),
("////", CommentKind { shape: CommentShape::Line, doc: None }),
("///", CommentKind { shape: CommentShape::Line, doc: Some(CommentPlacement::Outer) }),
("//!", CommentKind { shape: CommentShape::Line, doc: Some(CommentPlacement::Inner) }),