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//! Reply admission and presentation, guarded by request ownership.
use crate::editor::{trace, Editor};
use strop_lsp::{protocol::ResolvedDiag, LspEvent};
use strop_workspace::{Filesystem, ResourceLocation};
impl Editor {
pub(crate) fn handle_lsp_event(&mut self, event: LspEvent) {
trace::services::lsp(&event);
match event {
LspEvent::Ready { server, name } => {
if let Some(owner) = self.lsp_servers.iter_mut().find(|owner| owner.id == server) {
owner.ready = true;
// Success must not erase a configuration warning
// (0033 §2): readiness is reported alongside it.
self.message = match self.layer_warning() {
Some(warning) => format!("lsp: {name} ready — {warning}"),
None => format!("lsp: {name} ready"),
};
}
}
LspEvent::Failed { server, name, hint } => {
if self.lsp_servers.iter().any(|s| s.id == server) {
self.lsp_failed(server);
self.message = format!("lsp: {name} failed — {hint}");
} else {
trace::services::rejected("lsp", "failure for an unowned server");
}
}
LspEvent::ServerMessage { server, name, text } => {
if self.lsp_servers.iter().any(|s| s.id == server) {
self.message = format!("lsp: {name}: {text}");
} else {
trace::services::rejected("lsp", "message for an unowned server");
}
}
LspEvent::Diagnostics {
context,
doc,
diags,
} => {
let valid = self
.lsp_state
.bindings
.get(&context.document)
.is_some_and(|b| {
b.server == context.server
&& b.path == doc.path
&& b.target == doc.filesystem
&& b.revision == context.revision
});
let Some(doc_buffer) = self
.docs
.get(context.document)
.filter(|d| valid && d.buf.revision() == context.revision)
else {
trace::services::rejected("lsp", "diagnostic owner/revision changed");
return;
};
let buffer = &doc_buffer.buf;
let resolved: Vec<ResolvedDiag> = diags
.into_iter()
.map(|d| d.resolve(context.encoding, buffer))
.collect();
self.diags.insert(
context.document,
crate::editor::diagnostics::DocumentDiagnostics {
revision: context.revision,
items: resolved,
},
);
}
LspEvent::HoverText { context, text } => {
if !self.finish_lsp_reply(&context) {
trace::services::rejected(
"lsp",
"hover request/server/document/revision changed",
);
return;
}
self.hover_card = Some(text);
}
LspEvent::Note { context, text } => {
self.continue_after_format(&context, Some(text.clone()));
if !self.finish_lsp_reply(&context) {
trace::services::rejected(
"lsp",
"navigation request/server/document/revision changed",
);
return;
}
self.message = text;
}
LspEvent::Edits { context, edits } => {
if !self.finish_lsp_reply(&context) {
trace::services::rejected("lsp", "edit request owner/revision changed");
self.continue_after_format(
&context,
Some("format reply was stale; source edits retained".into()),
);
return;
}
if edits.is_empty() {
self.message = "already formatted".into();
self.continue_after_format(&context, None);
return;
}
let Some(location) =
self.lsp_state
.bindings
.get(&context.stamp.document)
.map(|binding| ResourceLocation {
filesystem: binding.target.clone(),
path: binding.path.clone(),
})
else {
trace::services::rejected("lsp", "edits for an unbound document");
self.continue_after_format(
&context,
Some("source binding was lost before formatting".into()),
);
return;
};
let plan = self.build_change_plan(
crate::editor::changes::ChangeProducer::Format,
vec![(location, edits)],
context.encoding,
);
let refused = !plan.refused.is_empty()
|| plan.documents.iter().any(|target| {
self.docs
.get(target.document)
.is_none_or(|document| document.buf.readonly)
});
self.apply_change_plan(plan);
self.continue_after_format(&context, refused.then(|| self.message.clone()));
}
LspEvent::WorkspaceEdits { context, edits } => {
if !self.finish_lsp_reply(&context) {
trace::services::rejected("lsp", "workspace-edit owner/revision changed");
return;
}
if edits.is_empty() {
self.message = format!("lsp: {} made no edits", context.kind.label());
return;
}
let producer = match context.kind {
strop_lsp::RequestKind::Rename => {
crate::editor::changes::ChangeProducer::Rename
}
_ => crate::editor::changes::ChangeProducer::CodeAction,
};
let plan = self.build_change_plan(producer, edits, context.encoding);
self.present_change_plan(plan);
}
LspEvent::Symbols { context, symbols } => {
if !self.finish_lsp_reply(&context) {
trace::services::rejected("lsp", "symbol owner/revision changed");
return;
}
if symbols.is_empty() {
self.message = "no symbols in this document".into();
return;
}
use strop_picker::{Item, Payload};
let items = symbols
.into_iter()
.map(|symbol| (short_kind(&symbol.kind), symbol))
.filter_map(|(badge, symbol)| {
let line = symbol.location.position.line.get() + 1;
let col = symbol.location.position.column.get() + 1;
let path = symbol.location.doc.path.clone();
let payload = match symbol.location.doc.filesystem {
strop_workspace::Filesystem::Local => Payload::Grep {
location: strop_workspace::ResourceLocation::local(path),
line,
col,
match_len: 1,
line_text: "".into(),
},
strop_workspace::Filesystem::Remote(endpoint) => Payload::Remote {
endpoint,
path,
line,
col,
},
// No container LSP is wired (DC1a); drop with a
// trace rather than aliasing a local path.
strop_workspace::Filesystem::Container(_) => {
trace::services::rejected("lsp", "container symbol dropped");
return None;
}
};
// The kind moves into the chip; the row text is
// name, container path, line.
let text = if symbol.container.is_empty() {
format!("{} · :{}", symbol.name, line)
} else {
format!("{} {} · :{}", symbol.name, symbol.container, line)
};
Some(Item {
badge: Some(badge.into()),
text,
payload,
})
})
.collect();
self.open_picker(strop_picker::Kind::Symbols);
if let Some(glue) = self.picker.as_mut() {
glue.picker.append(items);
}
// Items landed after the initial (empty-catalog)
// ranking: re-rank or the list renders empty.
self.request_picker_ranking();
}
LspEvent::ActionList { context, actions } => {
if !self.finish_lsp_reply(&context) {
trace::services::rejected("lsp", "code-action owner/revision changed");
return;
}
if actions.is_empty() {
self.message = "no code actions here".into();
return;
}
let items = actions
.iter()
.enumerate()
.map(|(index, action)| strop_picker::Item {
badge: None,
text: action.title.clone(),
payload: strop_picker::Payload::CodeAction(index),
})
.collect();
self.changes.pending_actions = actions;
self.open_picker(strop_picker::Kind::CodeActions);
self.changes.pending_encoding = context.encoding;
if let Some(glue) = self.picker.as_mut() {
glue.picker.append(items);
}
// Same post-append re-rank as the symbols arm above:
// the initial ranking ran over an empty catalog.
self.request_picker_ranking();
}
LspEvent::GotoLocation { context, location } => {
if !self.finish_lsp_reply(&context) {
trace::services::rejected(
"lsp",
"navigation request/server/document/revision changed",
);
return;
}
self.jump_to_location(location, context);
}
LspEvent::Locations {
context,
kind,
items,
} => {
if !self.finish_lsp_reply(&context) {
trace::services::rejected("lsp", "location-list owner changed");
return;
}
match items.len() {
0 => {
self.message = format!("no {}", kind.label());
}
1 => {
if let Some(location) = items.into_iter().next() {
self.jump_to_location(location, context);
}
}
count => {
use strop_picker::{Item, Kind, Payload};
let items = items
.into_iter()
.filter_map(|location| {
let line = location.position.line.get() + 1;
let col = location.position.column.get() + 1;
let text = format!("{}:{}:{}", location.doc.label(), line, col);
let payload = match location.doc.filesystem {
Filesystem::Local => Payload::Grep {
location: strop_workspace::ResourceLocation::local(
location.doc.path,
),
line,
col,
match_len: 1,
line_text: "".into(),
},
Filesystem::Remote(endpoint) => Payload::Remote {
endpoint,
path: location.doc.path,
line,
col,
},
// DC1a wires no container LSP, so a container
// location cannot arrive; if one ever does, it
// is dropped with a trace, never aliased to a
// local path.
Filesystem::Container(_) => {
trace::services::rejected(
"lsp",
"location in a container namespace (unwired)",
);
return None;
}
};
Some(Item {
badge: None,
text,
payload,
})
})
.collect();
let mut glue = crate::editor::PickerGlue::diagnostics(
strop_picker::Picker::new(Kind::Locations, items, false),
);
glue.lsp_context = Some(context);
self.set_picker(glue);
self.message = format!("{count} {}", kind.label());
}
}
}
}
}
}
/// Compact chip text for a symbol kind (the picker's badge column).
fn short_kind(kind: &str) -> &'static str {
match kind {
"Function" => "fn",
"Method" => "meth",
"Constructor" => "new",
"Struct" => "struct",
"Class" => "class",
"Interface" => "iface",
"Enum" => "enum",
"EnumMember" => "variant",
"Constant" => "const",
"Variable" => "var",
"Field" => "field",
"Property" => "prop",
"Module" => "mod",
"Namespace" => "ns",
"Package" => "pkg",
"TypeParameter" => "T",
_ => "sym",
}
}