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["enterprise-macros", "todomvc"] +members = ["enterprise-compiler", "enterprise-macros", "todomvc"] [dependencies] diff --git a/enterprise-compiler/Cargo.toml b/enterprise-compiler/Cargo.toml new file mode 100644 index 0000000..4c62645 --- /dev/null +++ b/enterprise-compiler/Cargo.toml @@ -0,0 +1,7 @@ +[package] +name = "enterprise-compiler" +version = "0.1.0" +authors = ["Michael Zhang "] +edition = "2018" + +[dependencies] diff --git a/enterprise-compiler/src/lib.rs b/enterprise-compiler/src/lib.rs new file mode 100644 index 0000000..a5a345b --- /dev/null +++ b/enterprise-compiler/src/lib.rs @@ -0,0 +1,6 @@ +#[derive(Debug)] +pub enum Error {} + +pub fn process_root() -> Result<(), Error> { + Ok(()) +} diff --git a/enterprise-macros/Cargo.toml b/enterprise-macros/Cargo.toml index 2adde7c..0908eb0 100644 --- a/enterprise-macros/Cargo.toml +++ b/enterprise-macros/Cargo.toml @@ -7,5 +7,11 @@ edition = "2018" [lib] proc-macro = true +[build-dependencies] +lalrpop = "0.17.2" + [dependencies] +proc-macro2 = { version = "1.0.7", features = ["span-locations"] } quote = "1.0.2" +thiserror = "1.0.9" +lalrpop-util = "0.17.2" diff --git a/enterprise-macros/build.rs b/enterprise-macros/build.rs new file mode 100644 index 0000000..ca5c283 --- /dev/null +++ b/enterprise-macros/build.rs @@ -0,0 +1,3 @@ +fn main() { + lalrpop::process_root().unwrap(); +} diff --git a/enterprise-macros/src/ast.rs b/enterprise-macros/src/ast.rs new file mode 100644 index 0000000..40f9994 --- /dev/null +++ b/enterprise-macros/src/ast.rs @@ -0,0 +1,20 @@ +#[derive(Debug)] +pub enum Toplevel { + Use(Use), + Component(Component), +} + +#[derive(Debug)] +pub struct Use(pub Vec); + +#[derive(Debug)] +pub struct Component { + pub name: String, +} + +#[derive(Debug)] +pub enum ComponentBody { + Constructor(), + View(), + Fn(), +} diff --git a/enterprise-macros/src/flatten.rs b/enterprise-macros/src/flatten.rs new file mode 100644 index 0000000..f2162c8 --- /dev/null +++ b/enterprise-macros/src/flatten.rs @@ -0,0 +1,127 @@ +use std::fmt; + +use lalrpop_util::ParseError; +use proc_macro2::{ + Delimiter, Group, Ident, LineColumn, Literal, Punct, Spacing, Span as Span2, TokenStream, + TokenTree, +}; + +use crate::parser::parser::__ToTriple; + +macro_rules! generate_token { + ([$($keyword_name:ident: $keyword:ident),* $(,)?]) => { + #[derive(Debug, Clone)] + pub enum TokenType { + Ident(Ident), + Punct(char, Punct), + Literal(Literal), + + $($keyword_name(Span),)* + } + + impl fmt::Display for TokenType { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + use TokenType::*; + match self { + Ident(ident) => ident.fmt(f), + Punct(_, punct) => punct.fmt(f), + Literal(literal) => literal.fmt(f), + $($keyword_name(_) => f.write_str(stringify!($keyword)),)* + } + } + } + + impl TokenType { + pub fn span(&self) -> Span { + use TokenType::*; + match self { + Ident(ident) => Span(ident.span()), + Punct(_, punct) => Span(punct.span()), + Literal(literal) => Span(literal.span()), + + $($keyword_name(span) => *span,)* + } + } + } + + fn flatten_tree(token_tree: TokenTree) -> Vec { + match token_tree { + TokenTree::Group(group) => { + use Delimiter::*; + let mut result = flatten(group.stream()); + let surround = match group.delimiter() { + Brace => Some(construct_group_tokens('{', '}', group)), + Parenthesis => Some(construct_group_tokens('(', ')', group)), + Bracket => Some(construct_group_tokens('[', ']', group)), + None => Option::None, + }; + if let Some((start, end)) = surround { + result.insert(0, start); + result.push(end); + } + result + }, + TokenTree::Ident(ident) => { + let token = match ident.to_string().as_ref() { + $(stringify!($keyword) => TokenType::$keyword_name(Span(ident.span())),)* + _ => TokenType::Ident(ident), + }; + vec![construct_token(token)] + } + TokenTree::Punct(punct) => { + let token = TokenType::Punct(punct.as_char(), punct); + vec![construct_token(token)] + } + TokenTree::Literal(literal) => { + let token = TokenType::Literal(literal); + vec![construct_token(token)] + } + } + } + } +} + +generate_token!([ + Component: component, + Constructor: constructor, + Fn: fn, + Use: use, + View: view, +]); + +pub type Token = Result<(Span, TokenType, Span), ()>; + +pub fn flatten(token_stream: TokenStream) -> Vec { + token_stream.into_iter().flat_map(flatten_tree).collect() +} + +fn construct_group_tokens(left: char, right: char, group: Group) -> (Token, Token) { + let mut left_punct = Punct::new(left, Spacing::Alone); + left_punct.set_span(group.span_open()); + let mut right_punct = Punct::new(right, Spacing::Alone); + right_punct.set_span(group.span_close()); + ( + construct_token(TokenType::Punct(left, left_punct)), + construct_token(TokenType::Punct(right, right_punct)), + ) +} + +fn construct_token(token: TokenType) -> Token { + let span = token.span(); + Ok((span, token, span)) +} + +#[derive(Copy, Clone, Debug)] +pub struct Span(pub Span2); + +impl fmt::Display for Span { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + write!(f, "{:?}", self) + } +} + +impl Default for Span { + fn default() -> Self { + Span(Span2::call_site()) + } +} diff --git a/enterprise-macros/src/lib.rs b/enterprise-macros/src/lib.rs index 7cd84d3..a00a847 100644 --- a/enterprise-macros/src/lib.rs +++ b/enterprise-macros/src/lib.rs @@ -1,11 +1,83 @@ extern crate proc_macro; +#[macro_use] +extern crate thiserror; +#[macro_use] +extern crate lalrpop_util; +mod ast; +mod flatten; + +mod parser { + lalrpop_mod!(pub parser); +} + +use std::fmt; + +use proc_macro2::TokenStream; use quote::quote; -use proc_macro::TokenStream; + +use crate::flatten::{Span, Token, TokenType}; +use crate::parser::parser::*; #[proc_macro] -pub fn component(input_tokens: TokenStream) -> TokenStream { - let tokens = quote! { - }; - tokens.into() -} \ No newline at end of file +pub fn component(input_tokens: proc_macro::TokenStream) -> proc_macro::TokenStream { + let input_tokens: TokenStream = input_tokens.into(); + let input_as_str = input_tokens.to_string(); + let tokens = flatten::flatten(input_tokens); + + eprintln!("Tokens:"); + for token in tokens.iter() { + eprintln!("- {:?}", token); + } + eprintln!(); + + let parser = ProgramParser::new(); + let result = parser.parse(tokens); + match result { + Ok(result) => eprintln!("success: {:?}", result), + Err(err) => { + use lalrpop_util::ParseError::*; + match err { + User { ref error } => print!("user error"), + InvalidToken { ref location } => print!("Invalid token at {}", location), + UnrecognizedEOF { + ref location, + ref expected, + } => { + print!("Unrecognized EOF found at {}", location); + fmt_expected(expected) + } + UnrecognizedToken { + token: (ref start, ref token, ref end), + ref expected, + } => { + print!("Unrecognized token `{}` found at {}:{}", token, start, end); + fmt_expected(expected) + } + ExtraToken { + token: (ref start, ref token, ref end), + } => print!("Extra token {} found at {}:{}", token, start, end), + } + } + } + panic!(); + + let result = quote! {}; + result.into() +} + +/// Format a list of expected tokens. +fn fmt_expected(expected: &[String]) { + if !expected.is_empty() { + println!(); + for (i, e) in expected.iter().enumerate() { + let sep = match i { + 0 => "Expected one of", + _ if i < expected.len() - 1 => ",", + // Last expected message to be written + _ => " or", + }; + print!("{} {}", sep, e); + } + } +} diff --git a/enterprise-macros/src/old_parser.rs b/enterprise-macros/src/old_parser.rs new file mode 100644 index 0000000..da7e015 --- /dev/null +++ b/enterprise-macros/src/old_parser.rs @@ -0,0 +1,188 @@ +use std::iter::Peekable; + +use proc_macro2::{token_stream::IntoIter, Group, Ident, Literal, Punct, TokenStream, TokenTree}; + +type TokenIter = Peekable; + +#[derive(Debug, Error)] +pub enum ParseError { + #[error("Expected token type {0:?}, found {1:?}.")] + ExpectedTokenType(TokenType, TokenType), + + #[error("Expected idents {0:?}, found {1:?}")] + ExpectedIdents(Vec<&'static str>, String), + + #[error("Unexpected end of file")] + UnexpectedEndOfFile, +} + +#[derive(Debug)] +pub enum TokenType { + Group, + Ident, + Punct, + Literal, +} + +impl TokenType { + fn from_tree(token_tree: &TokenTree) -> Self { + match token_tree { + TokenTree::Group(_) => TokenType::Group, + TokenTree::Ident(_) => TokenType::Ident, + TokenTree::Punct(_) => TokenType::Punct, + TokenTree::Literal(_) => TokenType::Literal, + } + } +} + +#[derive(Debug)] +pub enum Toplevel { + Use(UseStatement), + Component(Component), +} + +#[derive(Debug)] +pub struct UseStatement; + +#[derive(Debug)] +pub struct Component { + name: String, +} + +pub fn parse(tokens: TokenStream) -> Result, ParseError> { + // TODO: maybe don't need to cloen? + let mut token_iter = tokens.clone().into_iter().peekable(); + + let mut toplevels = Vec::new(); + while let Some(toplevel) = expect_toplevel(&mut token_iter)? { + toplevels.push(toplevel); + } + + Ok(toplevels) +} + +fn expect_toplevel(token_iter: &mut TokenIter) -> Result, ParseError> { + let ident = consume_expect_ident(token_iter, Some(&["use", "component"]))?; + let ident_string = ident.to_string(); + + match ident_string.as_ref() { + "use" => Ok(Some(Toplevel::Use(UseStatement))), + "component" => { + let component = expect_component(token_iter)?; + Ok(Some(Toplevel::Component(component))) + } + _ => Err(ParseError::ExpectedIdents( + vec!["use", "component"], + ident_string, + )), + } +} + +fn expect_component(token_iter: &mut TokenIter) -> Result { + let name_ident = expect_ident(token_iter, None)?; + let name = name_ident.to_string(); + + expect_component_body(token_iter, name) +} + +fn expect_component_body( + token_iter: &mut TokenIter, + name: String, +) -> Result { + expect_group(token_iter)?; + Ok(Component { name }) +} + +////// + +fn optional( + token_iter: &mut TokenIter, + arg: T, + func: impl Fn(&mut TokenIter, T) -> Result, +) { + match func(token_iter, arg) { + } +} + +macro_rules! expect_token_tree { + ($peek_fn_name:ident, $consume_fn_name:ident, $ty:ident) => { + #[allow(dead_code)] + fn $peek_fn_name<'a>(token_iter: &'a mut TokenIter) -> Result<&'a $ty, ParseError> { + match token_iter.peek() { + Some(TokenTree::$ty(value)) => Ok(value), + Some(other_tree) => Err(ParseError::ExpectedTokenType( + TokenType::Ident, + TokenType::from_tree(&other_tree), + )), + None => Err(ParseError::UnexpectedEndOfFile), + } + } + #[allow(dead_code)] + fn $consume_fn_name<'a>(token_iter: &'a mut TokenIter) -> Result<$ty, ParseError> { + match token_iter.next() { + Some(TokenTree::$ty(value)) => Ok(value), + Some(other_tree) => Err(ParseError::ExpectedTokenType( + TokenType::Ident, + TokenType::from_tree(&other_tree), + )), + None => Err(ParseError::UnexpectedEndOfFile), + } + } + }; +} + +expect_token_tree!(peek_expect_group, consume_expect_group, Group); +expect_token_tree!(peek_expect_punct, consume_expect_punct, Punct); +expect_token_tree!(peek_expect_literal, consume_expect_literal, Literal); + +fn peek_expect_ident<'a>( + token_iter: &'a mut TokenIter, + possible: Option<&[&'static str]>, +) -> Result<&'a Ident, ParseError> { + match token_iter.peek() { + Some(TokenTree::Ident(ident)) => { + if let Some(possible) = possible { + let ident_string = ident.to_string(); + for expected in possible { + if *expected == ident_string.as_str() { + return Ok(ident); + } + } + Err(ParseError::ExpectedIdents(possible.into(), ident_string)) + } else { + Ok(ident) + } + } + Some(other_tree) => Err(ParseError::ExpectedTokenType( + TokenType::Ident, + TokenType::from_tree(&other_tree), + )), + None => Err(ParseError::UnexpectedEndOfFile), + } +} + +fn consume_expect_ident<'a>( + token_iter: &'a mut TokenIter, + possible: Option<&[&'static str]>, +) -> Result { + match token_iter.next() { + Some(TokenTree::Ident(ident)) => { + if let Some(possible) = possible { + let ident_string = ident.to_string(); + for expected in possible { + if *expected == ident_string.as_str() { + return Ok(ident); + } + } + Err(ParseError::ExpectedIdents(possible.into(), ident_string)) + } else { + Ok(ident) + } + } + Some(other_tree) => Err(ParseError::ExpectedTokenType( + TokenType::Ident, + TokenType::from_tree(&other_tree), + )), + None => Err(ParseError::UnexpectedEndOfFile), + } +} diff --git a/enterprise-macros/src/parser.lalrpop b/enterprise-macros/src/parser.lalrpop new file mode 100644 index 0000000..b267de1 --- /dev/null +++ b/enterprise-macros/src/parser.lalrpop @@ -0,0 +1,123 @@ +use std::iter::FromIterator; + +use proc_macro2::{Ident, Punct, TokenTree, Delimiter, TokenStream, Group, Spacing, Literal}; + +use crate::{TokenType, Span}; +use crate::ast::*; + +grammar; + +pub Program: Vec = Toplevel*; + +pub Toplevel: Toplevel = { + Component => Toplevel::Component(<>), + Use => Toplevel::Use(<>), +}; + +Use: Use = { + "use" > ";" => Use(path.into_iter().map(|ident| ident.to_string()).collect()), +}; + +Component: Component = { + "component" > => { + Component { + name: name.to_string(), + } + } +}; + +ComponentBody: ComponentBody = { + "constructor" "(" ")" BraceGrouper => { + ComponentBody::Constructor() + }, + "view" BraceGrouper => { + ComponentBody::View() + }, + "fn" Ident "(" Delim ")" BraceGrouper => { + ComponentBody::Fn() + }, +}; + +// TODO: finish this +Arg: () = { + Punct Ident Ident => {}, + Ident ":" Ident => {}, +}; + +// + +pub ArbitraryBlocks: Vec = AnyToken*; + +Grouper: TokenTree = { + BraceGrouper => <>, + "(" ")" => TokenTree::Group(Group::new(Delimiter::Parenthesis, TokenStream::from_iter(b.into_iter()))), + "[" "]" => TokenTree::Group(Group::new(Delimiter::Bracket, TokenStream::from_iter(b.into_iter()))), +}; + +BraceGrouper: TokenTree = { + "{" "}" => TokenTree::Group(Group::new(Delimiter::Brace, TokenStream::from_iter(b.into_iter()))), +}; + +AnyToken: TokenTree = { + Grouper => <>, + + "component" => TokenTree::Ident(Ident::new("component", <>.0)), + "constructor" => TokenTree::Ident(Ident::new("constructor", <>.0)), + "fn" => TokenTree::Ident(Ident::new("fn", <>.0)), + "use" => TokenTree::Ident(Ident::new("use", <>.0)), + "view" => TokenTree::Ident(Ident::new("view", <>.0)), + + ":" => TokenTree::Punct(Punct::new(':', Spacing::Alone)), + ";" => TokenTree::Punct(Punct::new(';', Spacing::Alone)), + "," => TokenTree::Punct(Punct::new(',', Spacing::Alone)), + + Ident => TokenTree::Ident(<>), + Punct => TokenTree::Punct(<>), + Literal => TokenTree::Literal(<>), +}; + +Body: T = { + "{" "}" => body, +}; + +Delim: Vec = { + => { + let mut vec = Vec::new(); + if let Some((initial, rest)) = all { + vec.push(initial); + if let Some((rest, _)) = rest { + for (_, item) in rest { + vec.push(item); + } + } + } + vec + }, +}; + +extern { + type Location = Span; + type Error = (); + + enum TokenType { + "component" => TokenType::Component(), + "constructor" => TokenType::Constructor(), + "fn" => TokenType::Fn(), + "use" => TokenType::Use(), + "view" => TokenType::View(), + + ":" => TokenType::Punct(':', _), + ";" => TokenType::Punct(';', _), + "," => TokenType::Punct(',', _), + "{" => TokenType::Punct('{', _), + "}" => TokenType::Punct('}', _), + "(" => TokenType::Punct('(', _), + ")" => TokenType::Punct(')', _), + "[" => TokenType::Punct('[', _), + "]" => TokenType::Punct(']', _), + + Punct => TokenType::Punct(_, ), + Ident => TokenType::Ident(), + Literal => TokenType::Literal(), + } +} \ No newline at end of file diff --git a/src/component.rs b/src/component.rs new file mode 100644 index 0000000..e69de29 diff --git a/src/lib.rs b/src/lib.rs index e69de29..8b13789 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -0,0 +1 @@ + diff --git a/src/widgets/mod.rs b/src/widgets/mod.rs deleted file mode 100644 index d81dbc6..0000000 --- a/src/widgets/mod.rs +++ /dev/null @@ -1,3 +0,0 @@ -pub trait Widget { - -} \ No newline at end of file diff --git a/todomvc/Cargo.toml b/todomvc/Cargo.toml index 3ef4f5c..8d8807c 100644 --- a/todomvc/Cargo.toml +++ b/todomvc/Cargo.toml @@ -4,6 +4,9 @@ version = "0.1.0" authors = ["Michael Zhang "] edition = "2018" +[build-dependencies] +enterprise-compiler = { path = "../enterprise-compiler" } +enterprise-macros = { path = "../enterprise-macros" } + [dependencies] -enterprise = { path = ".." } -enterprise-macros = { path = "../enterprise-macros" } \ No newline at end of file +enterprise = { path = ".." } \ No newline at end of file diff --git a/todomvc/build.rs b/todomvc/build.rs new file mode 100644 index 0000000..e7a636f --- /dev/null +++ b/todomvc/build.rs @@ -0,0 +1,6 @@ +#[macro_use] +extern crate enterprise_macros; + +mod components; + +fn main() {} diff --git a/todomvc/components/mod.rs b/todomvc/components/mod.rs new file mode 100644 index 0000000..e6b9394 --- /dev/null +++ b/todomvc/components/mod.rs @@ -0,0 +1,24 @@ +component! { + use enterprise::event::ClickEvent; + use enterprise::components::Button; + + component Counter { + constructor() { + count: u32 = 0u32, + } + + view { + + } + + fn handleClick(&mut self, _: ClickEvent) { + self.count += 1; + } + } + + component Other { + + } +} diff --git a/todomvc/src/Counter.en b/todomvc/src/Counter.en new file mode 100644 index 0000000..e69de29 diff --git a/todomvc/src/main.rs b/todomvc/src/main.rs index 723e724..e7a11a9 100644 --- a/todomvc/src/main.rs +++ b/todomvc/src/main.rs @@ -1,28 +1,3 @@ -use enterprise_macros::component; - -component! { - data { - - } - - markup { -
-

Todos

- -
- - {#if items.length > 0} -
- - {#for item in items} - {/for} - -
- {/if} - } -} - fn main() { println!("Hello, world!"); } diff --git a/todomvc/src/yolo.rs b/todomvc/src/yolo.rs new file mode 100644 index 0000000..6d71475 --- /dev/null +++ b/todomvc/src/yolo.rs @@ -0,0 +1,47 @@ +struct YourFuckingMap; + +struct Options { + shit_you_get_from_the_net: EnumA, + other_shit: EnumB, + number: f32, +} + +impl Component for YourFuckingMap { + type Context = Options; + + fn view(&self, context: Self::Context) -> Vec { + // in here + let mut node = B::Markup::empty(); + if context.number > 0.5 { + node += this; + } + + match context.shit_you_get_from_the_net { + A => node += that, + B => node += ehtis, + } + + [node] + } +} + + +/////// + + => { + let listeners = span.listeners(); + } + + =>view(&self) -> B::Markup { + let button = (...); + + let mut data2 = Markup::empty(); + for row in ctx.data { + match row { + A => data2 += span.render(), + B => data2 + } + } + + [button, data2] + } \ No newline at end of file