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|
use languageserver_types::{
Diagnostic, DiagnosticSeverity, Url, DocumentSymbol,
Command
};
use libanalysis::World;
use libeditor;
use serde_json::to_value;
use ::{
req::{self, Decoration}, Result,
util::FilePath,
conv::{Conv, ConvWith},
};
pub fn handle_syntax_tree(
world: World,
params: req::SyntaxTreeParams,
) -> Result<String> {
let path = params.text_document.file_path()?;
let file = world.file_syntax(&path)?;
Ok(libeditor::syntax_tree(&file))
}
pub fn handle_extend_selection(
world: World,
params: req::ExtendSelectionParams,
) -> Result<req::ExtendSelectionResult> {
let path = params.text_document.file_path()?;
let file = world.file_syntax(&path)?;
let line_index = world.file_line_index(&path)?;
let selections = params.selections.into_iter()
.map(|r| r.conv_with(&line_index))
.map(|r| libeditor::extend_selection(&file, r).unwrap_or(r))
.map(|r| r.conv_with(&line_index))
.collect();
Ok(req::ExtendSelectionResult { selections })
}
pub fn handle_document_symbol(
world: World,
params: req::DocumentSymbolParams,
) -> Result<Option<req::DocumentSymbolResponse>> {
let path = params.text_document.file_path()?;
let file = world.file_syntax(&path)?;
let line_index = world.file_line_index(&path)?;
let mut res: Vec<DocumentSymbol> = Vec::new();
for symbol in libeditor::file_symbols(&file) {
let doc_symbol = DocumentSymbol {
name: symbol.name.clone(),
detail: Some(symbol.name),
kind: symbol.kind.conv(),
deprecated: None,
range: symbol.node_range.conv_with(&line_index),
selection_range: symbol.name_range.conv_with(&line_index),
children: None,
};
if let Some(idx) = symbol.parent {
let children = &mut res[idx].children;
if children.is_none() {
*children = Some(Vec::new());
}
children.as_mut().unwrap().push(doc_symbol);
} else {
res.push(doc_symbol);
}
}
Ok(Some(req::DocumentSymbolResponse::Nested(res)))
}
pub fn handle_code_action(
world: World,
params: req::CodeActionParams,
) -> Result<Option<Vec<Command>>> {
let path = params.text_document.file_path()?;
let file = world.file_syntax(&path)?;
let line_index = world.file_line_index(&path)?;
let offset = params.range.conv_with(&line_index).start();
let ret = if libeditor::flip_comma(&file, offset).is_some() {
Some(vec![apply_code_action_cmd(ActionId::FlipComma)])
} else {
None
};
Ok(ret)
}
fn apply_code_action_cmd(id: ActionId) -> Command {
Command {
title: id.title().to_string(),
command: "apply_code_action".to_string(),
arguments: Some(vec![to_value(id).unwrap()]),
}
}
#[derive(Serialize, Deserialize, Clone, Copy)]
enum ActionId {
FlipComma
}
impl ActionId {
fn title(&self) -> &'static str {
match *self {
ActionId::FlipComma => "Flip `,`",
}
}
}
pub fn publish_diagnostics(world: World, uri: Url) -> Result<req::PublishDiagnosticsParams> {
let path = uri.file_path()?;
let file = world.file_syntax(&path)?;
let line_index = world.file_line_index(&path)?;
let diagnostics = libeditor::diagnostics(&file)
.into_iter()
.map(|d| Diagnostic {
range: d.range.conv_with(&line_index),
severity: Some(DiagnosticSeverity::Error),
code: None,
source: Some("libsyntax2".to_string()),
message: d.msg,
related_information: None,
}).collect();
Ok(req::PublishDiagnosticsParams { uri, diagnostics })
}
pub fn publish_decorations(world: World, uri: Url) -> Result<req::PublishDecorationsParams> {
let path = uri.file_path()?;
let file = world.file_syntax(&path)?;
let line_index = world.file_line_index(&path)?;
let decorations = libeditor::highlight(&file)
.into_iter()
.map(|h| Decoration {
range: h.range.conv_with(&line_index),
tag: h.tag,
}).collect();
Ok(req::PublishDecorationsParams { uri, decorations })
}
|
