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Fix incorrect newline emission in Attrs::docs

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This commit is contained in:
Lukas Wirth 2021-03-17 16:10:58 +01:00
parent ec824a92d0
commit 5734b347dd
4 changed files with 80 additions and 62 deletions
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28
crates/hir_def/src/attr.rs
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@ -76,7 +76,7 @@ impl ops::Deref for Attrs {
impl RawAttrs {
pub(crate) const EMPTY: Self = Self { entries: None };
pub(crate) fn new(owner: &dyn AttrsOwner, hygiene: &Hygiene) -> Self {
pub(crate) fn new(owner: &dyn ast::AttrsOwner, hygiene: &Hygiene) -> Self {
let entries = collect_attrs(owner)
.enumerate()
.flat_map(|(i, attr)| match attr {
@ -92,7 +92,7 @@ impl RawAttrs {
Self { entries: if entries.is_empty() { None } else { Some(entries) } }
}
fn from_attrs_owner(db: &dyn DefDatabase, owner: InFile<&dyn AttrsOwner>) -> Self {
fn from_attrs_owner(db: &dyn DefDatabase, owner: InFile<&dyn ast::AttrsOwner>) -> Self {
let hygiene = Hygiene::new(db.upcast(), owner.file_id);
Self::new(owner.value, &hygiene)
}
@ -178,7 +178,7 @@ impl Attrs {
Some(it) => {
let raw_attrs = RawAttrs::from_attrs_owner(
db,
it.as_ref().map(|it| it as &dyn AttrsOwner),
it.as_ref().map(|it| it as &dyn ast::AttrsOwner),
);
match mod_data.definition_source(db) {
InFile { file_id, value: ModuleSource::SourceFile(file) } => raw_attrs
@ -189,9 +189,9 @@ impl Attrs {
None => RawAttrs::from_attrs_owner(
db,
mod_data.definition_source(db).as_ref().map(|src| match src {
ModuleSource::SourceFile(file) => file as &dyn AttrsOwner,
ModuleSource::Module(module) => module as &dyn AttrsOwner,
ModuleSource::BlockExpr(block) => block as &dyn AttrsOwner,
ModuleSource::SourceFile(file) => file as &dyn ast::AttrsOwner,
ModuleSource::Module(module) => module as &dyn ast::AttrsOwner,
ModuleSource::BlockExpr(block) => block as &dyn ast::AttrsOwner,
}),
),
}
@ -249,7 +249,7 @@ impl Attrs {
let mut res = ArenaMap::default();
for (id, var) in src.value.iter() {
let attrs = RawAttrs::from_attrs_owner(db, src.with_value(var as &dyn AttrsOwner))
let attrs = RawAttrs::from_attrs_owner(db, src.with_value(var as &dyn ast::AttrsOwner))
.filter(db, krate);
res.insert(id, attrs)
@ -283,7 +283,7 @@ impl Attrs {
/// Constructs a map that maps the lowered `Attr`s in this `Attrs` back to its original syntax nodes.
///
/// `owner` must be the original owner of the attributes.
pub fn source_map(&self, owner: &dyn AttrsOwner) -> AttrSourceMap {
pub fn source_map(&self, owner: &dyn ast::AttrsOwner) -> AttrSourceMap {
AttrSourceMap { attrs: collect_attrs(owner).collect() }
}
@ -321,9 +321,7 @@ impl Attrs {
let mut buf = String::new();
for doc in docs {
// str::lines doesn't yield anything for the empty string
if doc.is_empty() {
buf.push('\n');
} else {
if !doc.is_empty() {
buf.extend(Itertools::intersperse(
doc.lines().map(|line| {
line.char_indices()
@ -436,7 +434,7 @@ impl Attr {
///
/// Note that the returned syntax node might be a `#[cfg_attr]`, or a doc comment, instead of
/// the attribute represented by `Attr`.
pub fn to_src(&self, owner: &dyn AttrsOwner) -> Either<ast::Attr, ast::Comment> {
pub fn to_src(&self, owner: &dyn ast::AttrsOwner) -> Either<ast::Attr, ast::Comment> {
collect_attrs(owner).nth(self.index as usize).unwrap_or_else(|| {
panic!("cannot find `Attr` at index {} in {}", self.index, owner.syntax())
})
@ -528,7 +526,7 @@ where
N: ast::AttrsOwner,
{
let src = InFile::new(src.file_id, src.to_node(db.upcast()));
RawAttrs::from_attrs_owner(db, src.as_ref().map(|it| it as &dyn AttrsOwner))
RawAttrs::from_attrs_owner(db, src.as_ref().map(|it| it as &dyn ast::AttrsOwner))
}
fn attrs_from_item_tree<N: ItemTreeNode>(id: ItemTreeId<N>, db: &dyn DefDatabase) -> RawAttrs {
@ -537,7 +535,9 @@ fn attrs_from_item_tree<N: ItemTreeNode>(id: ItemTreeId<N>, db: &dyn DefDatabase
tree.raw_attrs(mod_item.into()).clone()
}
fn collect_attrs(owner: &dyn AttrsOwner) -> impl Iterator<Item = Either<ast::Attr, ast::Comment>> {
fn collect_attrs(
owner: &dyn ast::AttrsOwner,
) -> impl Iterator<Item = Either<ast::Attr, ast::Comment>> {
let (inner_attrs, inner_docs) = inner_attributes(owner.syntax())
.map_or((None, None), |(attrs, docs)| ((Some(attrs), Some(docs))));