Bindings for style

Cargo.lock

@@ -56,7 +56,7 @@ checksum = "6e0c28dcc82d7c8ead5cb13beb15405b57b8546e93215673ff8ca0349a028107"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -67,7 +67,7 @@ checksum = "3c87f3f15e7794432337fc718554eaa4dc8f04c9677a950ffe366f20a162ae42"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -277,6 +277,16 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
 
+[[package]]
+name = "erased-serde"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24e2389d65ab4fab27dc2a5de7b191e1f6617d1f1c8855c0dc569c94a4cbb18d"
+dependencies = [
+ "serde",
+ "typeid",
+]
+
 [[package]]
 name = "errno"
 version = "0.3.9"
@@ -389,7 +399,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -696,10 +706,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d111deb18a9c9bd33e1541309f4742523bfab01d276bfa9a27519f6de9c11dc7"
 dependencies = [
  "bstr",
+ "erased-serde",
  "mlua-sys",
  "num-traits",
  "once_cell",
  "rustc-hash",
+ "serde",
+ "serde-value",
 ]
 
 [[package]]
@@ -802,6 +815,15 @@ dependencies = [
  "pkg-config",
 ]
 
+[[package]]
+name = "ordered-float"
+version = "2.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68f19d67e5a2795c94e73e0bb1cc1a7edeb2e28efd39e2e1c9b7a40c1108b11c"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "parking_lot_core"
 version = "0.9.10"
@@ -852,7 +874,7 @@ dependencies = [
  "pest_meta",
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -883,7 +905,7 @@ checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -931,9 +953,9 @@ checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.79"
+version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e835ff2298f5721608eb1a980ecaee1aef2c132bf95ecc026a11b7bf3c01c02e"
+checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
 dependencies = [
  "unicode-ident",
 ]
@@ -949,9 +971,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.35"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
+checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
 dependencies = [
  "proc-macro2",
 ]
@@ -1159,6 +1181,16 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-value"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3a1a3341211875ef120e117ea7fd5228530ae7e7036a779fdc9117be6b3282c"
+dependencies = [
+ "ordered-float",
+ "serde",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.204"
@@ -1167,7 +1199,7 @@ checksum = "e0cd7e117be63d3c3678776753929474f3b04a43a080c744d6b0ae2a8c28e222"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1189,7 +1221,7 @@ checksum = "6c64451ba24fc7a6a2d60fc75dd9c83c90903b19028d4eff35e88fc1e86564e9"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1231,9 +1263,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.53"
+version = "2.0.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7383cd0e49fff4b6b90ca5670bfd3e9d6a733b3f90c686605aa7eec8c4996032"
+checksum = "dc4b9b9bf2add8093d3f2c0204471e951b2285580335de42f9d2534f3ae7a8af"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1291,7 +1323,7 @@ checksum = "d20468752b09f49e909e55a5d338caa8bedf615594e9d80bc4c565d30faf798c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1371,7 +1403,7 @@ checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1438,7 +1470,7 @@ checksum = "84fd902d4e0b9a4b27f2f440108dc034e1758628a9b702f8ec61ad66355422fa"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1466,7 +1498,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1478,6 +1510,12 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "typeid"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "059d83cc991e7a42fc37bd50941885db0888e34209f8cfd9aab07ddec03bc9cf"
+
 [[package]]
 name = "typenum"
 version = "1.17.0"
@@ -1723,5 +1761,5 @@ checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.53",
+ "syn 2.0.72",
 ]

Cargo.toml

@@ -25,7 +25,7 @@ graphviz-rust = "0.9.0"
 lazy_static = "1.5.0"
 lsp-server = "0.7.6"
 lsp-types = "0.97.0"
-mlua = { version = "0.9.9", features = ["lua54", "vendored"] }
+mlua = { version = "0.9.9", features = ["lua54", "vendored", "serialize"] }
 regex = "1.10.3"
 rusqlite = "0.31.0"
 rust-crypto = "0.2.36"

src/document/style.rs

@@ -20,6 +20,13 @@ pub trait ElementStyle: Downcast + core::fmt::Debug {
 
 	/// Serializes sytle into json string
 	fn to_json(&self) -> String;
+
+	/// Attempts to deserialize lua table into a new style
+	fn from_lua(
+		&self,
+		lua: &mlua::Lua,
+		value: mlua::Value,
+	) -> Result<Rc<dyn ElementStyle>, mlua::Error>;
 }
 impl_downcast!(ElementStyle);
 
@@ -31,7 +38,7 @@ pub trait StyleHolder {
 	fn styles_mut(&self) -> RefMut<'_, HashMap<String, Rc<dyn ElementStyle>>>;
 
 	/// Checks if a given style key is registered
-	fn is_registered(&self, style_key: &str) -> bool { self.styles().contains_key(style_key) }
+	fn is_style_registered(&self, style_key: &str) -> bool { self.styles().contains_key(style_key) }
 
 	/// Gets the current active style for an element
 	/// NOTE: Will panic if a style is not defined for a given element
@@ -59,6 +66,15 @@ macro_rules! impl_elementstyle {
 			}
 
 			fn to_json(&self) -> String { serde_json::to_string(self).unwrap() }
+
+			fn from_lua(
+				&self,
+				lua: &mlua::Lua,
+				value: mlua::Value,
+			) -> Result<std::rc::Rc<dyn ElementStyle>, mlua::Error> {
+				mlua::LuaSerdeExt::from_value::<$t>(lua, value)
+					.map(|obj| std::rc::Rc::new(obj) as std::rc::Rc<dyn ElementStyle>)
+			}
 		}
 	};
 }

src/elements/elemstyle.rs

@@ -1,16 +1,24 @@
 use std::any::Any;
 use std::ops::Range;
 use std::rc::Rc;
+use std::sync::Arc;
 
 use ariadne::Fmt;
 use ariadne::Label;
 use ariadne::Report;
 use ariadne::ReportKind;
+use mlua::Error::BadArgument;
+use mlua::Function;
+use mlua::Lua;
+use mlua::LuaSerdeExt;
+use mlua::Table;
+use mlua::Value;
 use regex::Captures;
 use regex::Regex;
 
 use crate::document::document::Document;
 use crate::document::{self};
+use crate::lua::kernel::CTX;
 use crate::parser::parser::Parser;
 use crate::parser::rule::RegexRule;
 use crate::parser::rule::Rule;
@@ -58,71 +66,6 @@ impl ElemStyleRule {
 impl Rule for ElemStyleRule {
 	fn name(&self) -> &'static str { "Element Style" }
 
-	/*
-		fn on_regex_match<'a>(
-			&self,
-			_: usize,
-			parser: &dyn Parser,
-			_document: &'a dyn Document,
-			token: Token,
-			matches: Captures,
-		) -> Vec<Report<'_, (Rc<dyn Source>, Range<usize>)>> {
-			let mut reports = vec![];
-
-
-			// Get value
-			let new_style = if let Some(value) = matches.get(2) {
-				let value_str = match VariableRule::validate_value(value.as_str()) {
-					Err(err) => {
-						reports.push(
-							Report::build(ReportKind::Error, token.source(), value.start())
-								.with_message("Invalid Style Value")
-								.with_label(
-									Label::new((token.source(), value.range()))
-										.with_message(format!(
-											"Value `{}` is not allowed: {err}",
-											value.as_str().fg(parser.colors().highlight)
-										))
-										.with_color(parser.colors().error),
-								)
-								.finish(),
-						);
-						return reports;
-					}
-					Ok(value) => value,
-				};
-
-				// Attempt to serialize
-				match style.from_json(value_str.as_str()) {
-					Err(err) => {
-						reports.push(
-							Report::build(ReportKind::Error, token.source(), value.start())
-								.with_message("Invalid Style Value")
-								.with_label(
-									Label::new((token.source(), value.range()))
-										.with_message(format!(
-											"Failed to serialize `{}` into style with key `{}`: {err}",
-											value_str.fg(parser.colors().highlight),
-											style.key().fg(parser.colors().info)
-										))
-										.with_color(parser.colors().error),
-								)
-								.finish(),
-						);
-						return reports;
-					}
-					Ok(style) => style,
-				}
-			} else {
-				panic!("Unknown error")
-			};
-
-			parser.set_style(new_style);
-
-			reports
-		}
-	*/
-
 	fn next_match(&self, cursor: &Cursor) -> Option<(usize, Box<dyn Any>)> {
 		self.start_re
 			.find_at(cursor.source.content(), cursor.pos)
@@ -164,7 +107,7 @@ impl Rule for ElemStyleRule {
 			}
 
 			// Check if key exists
-			if !parser.is_registered(trimmed) {
+			if !parser.is_style_registered(trimmed) {
 				reports.push(
 					Report::build(ReportKind::Error, cursor.source.clone(), key.start())
 						.with_message("Unknown Style Key")
@@ -240,4 +183,46 @@ impl Rule for ElemStyleRule {
 
 		(cursor, reports)
 	}
+
+	fn lua_bindings<'lua>(&self, lua: &'lua Lua) -> Option<Vec<(String, Function<'lua>)>> {
+		let mut bindings = vec![];
+
+		bindings.push((
+			"set".to_string(),
+			lua.create_function(|lua, (style_key, new_style): (String, Value)| {
+				let mut result = Ok(());
+				CTX.with_borrow(|ctx| {
+					ctx.as_ref().map(|ctx| {
+						if !ctx.parser.is_style_registered(style_key.as_str()) {
+							result = Err(BadArgument {
+								to: Some("set".to_string()),
+								pos: 1,
+								name: Some("style_key".to_string()),
+								cause: Arc::new(mlua::Error::external(format!(
+									"Unable to find style with key: {style_key}"
+								))),
+							});
+							return;
+						}
+
+						let style = ctx.parser.current_style(style_key.as_str());
+						let new_style = match style.from_lua(lua, new_style) {
+							Err(err) => {
+								result = Err(err);
+								return;
+							}
+							Ok(new_style) => new_style,
+						};
+
+						ctx.parser.set_current_style(new_style);
+					})
+				});
+
+				result
+			})
+			.unwrap(),
+		));
+
+		Some(bindings)
+	}
 }

src/lua/kernel.rs

@@ -1,11 +1,13 @@
-use std::cell::{RefCell, RefMut};
+use std::cell::RefCell;
+use std::cell::RefMut;
 
 use mlua::Lua;
 
-use crate::{document::document::Document, parser::{parser::Parser, source::Token}};
+use crate::document::document::Document;
+use crate::parser::parser::Parser;
+use crate::parser::source::Token;
 
-pub struct KernelContext<'a, 'b>
+pub struct KernelContext<'a, 'b> {
-{
 	pub location: Token,
 	pub parser: &'a dyn Parser,
 	pub document: &'b dyn Document<'b>,
@@ -13,34 +15,30 @@ pub struct KernelContext<'a, 'b>
 }
 
 thread_local! {
-    pub static CTX: RefCell<Option<KernelContext<'static, 'static>>> = RefCell::new(None);
+	pub static CTX: RefCell<Option<KernelContext<'static, 'static>>> = RefCell::new(None);
 }
 
 #[derive(Debug)]
-pub struct Kernel
+pub struct Kernel {
-{
 	lua: Lua,
 }
 
 impl Kernel {
-	// TODO: Take parser as arg and 
+	// TODO: Take parser as arg and
 	// iterate over the rules
 	// to find export the bindings (if some)
-    pub fn new(parser: &dyn Parser) -> Self {
+	pub fn new(parser: &dyn Parser) -> Self {
 		let lua = Lua::new();
 
 		{
 			let nml_table = lua.create_table().unwrap();
 
-			for rule in parser.rules()
+			for rule in parser.rules() {
-			{
+				if let Some(bindings) = rule.lua_bindings(&lua) {
-				if let Some(bindings) = rule.lua_bindings(&lua)
-				{
 					let table = lua.create_table().unwrap();
-					let name = rule.name().to_lowercase();
+					let name = rule.name().to_lowercase().replace(' ', "_");
 
-					for (fun_name, fun) in bindings
+					for (fun_name, fun) in bindings {
-					{
 						table.set(fun_name, fun).unwrap();
 					}
 
@@ -51,16 +49,15 @@ impl Kernel {
 		}
 
 		Self { lua }
-    }
+	}
 
 	/// Runs a procedure with a context
 	///
 	/// This is the only way lua code shoule be ran, because exported
 	/// functions may require the context in order to operate
-	pub fn run_with_context<T, F>(&self, context: KernelContext, f: F)
+	pub fn run_with_context<T, F>(&self, context: KernelContext, f: F) -> T
-		-> T
 	where
-		F: FnOnce(&Lua) -> T
+		F: FnOnce(&Lua) -> T,
 	{
 		CTX.set(Some(unsafe { std::mem::transmute(context) }));
 		let ret = f(&self.lua);
@@ -70,8 +67,7 @@ impl Kernel {
 	}
 }
 
-pub trait KernelHolder
+pub trait KernelHolder {
-{
 	fn get_kernel(&self, name: &str) -> Option<RefMut<'_, Kernel>>;
 
 	fn insert_kernel(&self, name: String, kernel: Kernel) -> RefMut<'_, Kernel>;