Add styles support

src/elements/style.rs

@@ -14,6 +14,7 @@ use crate::parser::source::Token;
 use crate::parser::state::RuleState;
 use crate::parser::state::Scope;
 use ariadne::Fmt;
+use lsp::styles::Styles;
 use mlua::Function;
 use regex::Captures;
 use regex::Regex;
@@ -188,6 +189,8 @@ impl RegexRule for StyleRule {
 		};
 
 		if let Some(style_state) = style_state.borrow_mut().downcast_mut::<StyleState>() {
+			let start = style_state.toggled[index].clone();
+
 			style_state.toggled[index] = style_state.toggled[index]
 				.clone()
 				.map_or(Some(token.clone()), |_| None);
@@ -200,6 +203,22 @@ impl RegexRule for StyleRule {
 				)),
 			);
 
+			if let Some(start) = start
+			{
+				if let Some(styles) =
+					Styles::from_source(token.source(), &state.shared.lsp)
+				{
+					match index
+					{
+						0 => styles.add(start.start()..token.end(), crate::lsp::styles::Style::Style("bold".into())),
+						1 => styles.add(start.start()..token.end(), crate::lsp::styles::Style::Style("italic".into())),
+						2 => styles.add(start.start()..token.end(), crate::lsp::styles::Style::Style("underlined".into())),
+						_ => {},
+					}
+				}
+			}
+
+			// Style
 			if let Some((sems, tokens)) = Semantics::from_source(token.source(), &state.shared.lsp)
 			{
 				sems.add(token.start()..token.end(), tokens.style_marker);

src/lsp/conceal.rs

@@ -5,8 +5,6 @@ use std::rc::Rc;
 
 use serde::Deserialize;
 use serde::Serialize;
-use tower_lsp::jsonrpc::Request;
-use tower_lsp::jsonrpc::{self};
 use tower_lsp::lsp_types::Position;
 
 use crate::parser::source::LineCursor;

src/lsp/data.rs

@@ -8,6 +8,7 @@ use super::definition::DefinitionData;
 use super::hints::HintsData;
 use super::semantic::SemanticsData;
 use super::semantic::Tokens;
+use super::styles::StylesData;
 
 #[derive(Debug)]
 pub struct LSPData {
@@ -16,6 +17,7 @@ pub struct LSPData {
 	pub inlay_hints: HashMap<Rc<dyn Source>, HintsData>,
 	pub definitions: HashMap<Rc<dyn Source>, DefinitionData>,
 	pub conceals: HashMap<Rc<dyn Source>, ConcealsData>,
+	pub styles: HashMap<Rc<dyn Source>, StylesData>,
 }
 
 impl LSPData {
@@ -26,6 +28,7 @@ impl LSPData {
 			inlay_hints: HashMap::new(),
 			definitions: HashMap::new(),
 			conceals: HashMap::new(),
+			styles: HashMap::new(),
 		}
 	}
 
@@ -47,5 +50,9 @@ impl LSPData {
 			self.conceals
 				.insert(source.clone(), ConcealsData::new(source.clone()));
 		}
+		if !self.styles.contains_key(&source) {
+			self.styles
+				.insert(source.clone(), StylesData::new(source.clone()));
+		}
 	}
 }

src/lsp/mod.rs

@@ -3,3 +3,4 @@ pub mod definition;
 pub mod hints;
 pub mod semantic;
 pub mod conceal;
+pub mod styles;

src/lsp/styles.rs

@@ -0,0 +1,126 @@
+use std::{cell::{Ref, RefCell}, ops::Range, rc::Rc};
+
+use serde::{Deserialize, Serialize};
+use tower_lsp::lsp_types::Position;
+
+use crate::parser::source::{LineCursor, Source, SourceFile, SourcePosition, VirtualSource};
+
+use super::data::LSPData;
+
+
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct StyleParams {
+	pub text_document: tower_lsp::lsp_types::TextDocumentIdentifier,
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct StyleInfo {
+	pub range: tower_lsp::lsp_types::Range,
+	pub style: Style,
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub enum Style {
+	Color(u32),
+	Style(String),
+	Full {
+		color: u32,
+		style: String,
+	}
+}
+
+/// Per file styles
+#[derive(Debug)]
+pub struct StylesData {
+	/// The styles
+	pub styles: RefCell<Vec<StyleInfo>>,
+}
+
+impl StylesData {
+	pub fn new(source: Rc<dyn Source>) -> Self {
+		Self {
+			styles: RefCell::new(vec![]),
+		}
+	}
+}
+
+/// Temporary data returned by [`Self::from_source_impl`]
+#[derive(Debug)]
+pub struct Styles<'a> {
+	pub(self) styles: Ref<'a, StylesData>,
+	// The source used when resolving the parent source
+	pub(self) original_source: Rc<dyn Source>,
+	/// The resolved parent source
+	pub(self) source: Rc<dyn Source>,
+}
+
+impl<'a> Styles<'a> {
+	fn from_source_impl(
+		source: Rc<dyn Source>,
+		lsp: &'a Option<RefCell<LSPData>>,
+		original_source: Rc<dyn Source>,
+	) -> Option<Self> {
+		if (source.name().starts_with(":LUA:") || source.name().starts_with(":VAR:"))
+			&& source.downcast_ref::<VirtualSource>().is_some()
+		{
+			return None;
+		}
+
+		if let Some(location) = source
+			.clone()
+			.downcast_rc::<VirtualSource>()
+			.ok()
+			.as_ref()
+			.map(|parent| parent.location())
+			.unwrap_or(None)
+		{
+			return Self::from_source_impl(location.source(), lsp, original_source);
+		} else if let Ok(source) = source.clone().downcast_rc::<SourceFile>() {
+			return Ref::filter_map(lsp.as_ref().unwrap().borrow(), |lsp: &LSPData| {
+				lsp.styles.get(&(source.clone() as Rc<dyn Source>))
+			})
+			.ok()
+			.map(|styles| Self {
+				styles,
+				source,
+				original_source,
+			});
+		}
+		None
+	}
+
+	pub fn from_source(source: Rc<dyn Source>, lsp: &'a Option<RefCell<LSPData>>) -> Option<Self> {
+		if lsp.is_none() {
+			return None;
+		}
+		Self::from_source_impl(source.clone(), lsp, source)
+	}
+
+	pub fn add(&self, range: Range<usize>, style: Style) {
+		let range = self.original_source.original_range(range).1;
+		let mut cursor = LineCursor::new(self.original_source.clone());
+		cursor.move_to(range.start);
+
+		let line = cursor.line;
+		let start_char = cursor.line_pos;
+
+		cursor.move_to(range.end);
+		assert_eq!(line, cursor.line);
+		let end_char = cursor.line_pos;
+
+		self.styles.styles.borrow_mut().push(StyleInfo {
+			range: tower_lsp::lsp_types::Range {
+				start: Position {
+					line: line as u32,
+					character: start_char as u32,
+				},
+				end: Position {
+					line: line as u32,
+					character: end_char as u32,
+				},
+			},
+			style,
+		})
+	}
+}

src/server.rs

@@ -9,10 +9,10 @@ mod parser;
 use std::rc::Rc;
 
 use dashmap::DashMap;
-use downcast_rs::Downcast;
 use lsp::conceal::ConcealInfo;
 use lsp::conceal::ConcealParams;
-use lsp::conceal::ConcealTarget;
+use lsp::styles::StyleInfo;
+use lsp::styles::StyleParams;
 use parser::langparser::LangParser;
 use parser::parser::ParseMode;
 use parser::parser::Parser;
@@ -35,6 +35,7 @@ struct Backend {
 	diagnostic_map: DashMap<String, Vec<Diagnostic>>,
 	hints_map: DashMap<String, Vec<InlayHint>>,
 	conceals_map: DashMap<String, Vec<ConcealInfo>>,
+	styles_map: DashMap<String, Vec<StyleInfo>>,
 }
 
 #[derive(Debug)]
@@ -72,9 +73,10 @@ impl Backend {
 			ParseMode::default(),
 		);
 
-		// Semantics
 		if let Some(lsp) = state.shared.lsp.as_ref() {
 			let borrow = lsp.borrow();
+
+			// Semantics
 			for (source, sem) in &borrow.semantic_data {
 				if let Some(path) = source
 					.clone()
@@ -86,11 +88,8 @@ impl Backend {
 						.insert(path, sem.tokens.replace(vec![]));
 				}
 			}
-		}
 
-		// Hints
-		if let Some(lsp) = state.shared.lsp.as_ref() {
-			let borrow = lsp.borrow();
+			// Inlay hints
 			for (source, hints) in &borrow.inlay_hints {
 				if let Some(path) = source
 					.clone()
@@ -101,11 +100,8 @@ impl Backend {
 					self.hints_map.insert(path, hints.hints.replace(vec![]));
 				}
 			}
-		}
 
-		// Definitions
-		if let Some(lsp) = state.shared.lsp.as_ref() {
-			let borrow = lsp.borrow();
+			// Definitions
 			for (source, definitions) in &borrow.definitions {
 				if let Some(path) = source
 					.clone()
@@ -117,11 +113,8 @@ impl Backend {
 						.insert(path, definitions.definitions.replace(vec![]));
 				}
 			}
-		}
 
-		// Conceals
-		if let Some(lsp) = state.shared.lsp.as_ref() {
-			let borrow = lsp.borrow();
+			// Conceals
 			for (source, conceals) in &borrow.conceals {
 				if let Some(path) = source
 					.clone()
@@ -133,6 +126,19 @@ impl Backend {
 						.insert(path, conceals.conceals.replace(vec![]));
 				}
 			}
+
+			// Styles
+			for (source, styles) in &borrow.styles {
+				if let Some(path) = source
+					.clone()
+					.downcast_rc::<SourceFile>()
+					.ok()
+					.map(|source| source.path().to_owned())
+				{
+					self.styles_map
+						.insert(path, styles.styles.replace(vec![]));
+				}
+			}
 		}
 	}
 
@@ -140,11 +146,21 @@ impl Backend {
 		&self,
 		params: ConcealParams,
 	) -> jsonrpc::Result<Vec<ConcealInfo>> {
-		eprintln!("HERE {:#?}", self.conceals_map);
 		if let Some(conceals) = self.conceals_map.get(params.text_document.uri.as_str()) {
 			let (_, data) = conceals.pair();
 
-		eprintln!("HERE2");
+			return Ok(data.to_vec());
+		}
+		Ok(vec![])
+	}
+
+	async fn handle_style_request(
+		&self,
+		params: StyleParams,
+	) -> jsonrpc::Result<Vec<StyleInfo>> {
+		if let Some(styles) = self.styles_map.get(params.text_document.uri.as_str()) {
+			let (_, data) = styles.pair();
+
 			return Ok(data.to_vec());
 		}
 		Ok(vec![])
@@ -357,8 +373,10 @@ async fn main() {
 		diagnostic_map: DashMap::new(),
 		hints_map: DashMap::new(),
 		conceals_map: DashMap::new(),
+		styles_map: DashMap::new(),
 	})
 	.custom_method("textDocument/conceal", Backend::handle_conceal_request)
+	.custom_method("textDocument/style", Backend::handle_style_request)
 	.finish();
 
 	Server::new(stdin, stdout, socket).serve(service).await;