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hoooooly shit parsing works, will make the code prettier tomorrow

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This commit is contained in:
Michael Zhang 2020-02-17 06:07:53 -06:00
parent 7c2febb4ed
commit 51be5dcf55
Signed by: michael
GPG key ID: BDA47A31A3C8EE6B
18 changed files with 566 additions and 121 deletions
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2
.tokeignore Normal file
View file

@ -0,0 +1,2 @@
syn-serde
symbol

29
Cargo.lock generated
View file

@ -67,9 +67,11 @@ dependencies = [
"quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
"spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
"symbol 0.1.0",
"syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
"syn-serde 0.2.0",
]
[[package]]
@ -79,8 +81,10 @@ dependencies = [
"enterprise-compiler 0.1.0",
"proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
"symbol 0.1.0",
"syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
"syn-serde 0.2.0",
"thiserror 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -230,6 +234,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
name = "serde"
version = "1.0.104"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "serde_derive"
@ -243,7 +250,7 @@ dependencies = [
[[package]]
name = "serde_json"
version = "1.0.46"
version = "1.0.48"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
@ -274,7 +281,7 @@ dependencies = [
"discard 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.46 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
"stdweb-derive 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
"stdweb-internal-macros 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
"stdweb-internal-runtime 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
@ -303,7 +310,7 @@ dependencies = [
"quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.46 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
"sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -318,6 +325,8 @@ name = "symbol"
version = "0.1.0"
dependencies = [
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
"spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -331,6 +340,18 @@ dependencies = [
"unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "syn-serde"
version = "0.2.0"
dependencies = [
"proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "thiserror"
version = "1.0.11"
@ -452,7 +473,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
"checksum serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)" = "414115f25f818d7dfccec8ee535d76949ae78584fc4f79a6f45a904bf8ab4449"
"checksum serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)" = "128f9e303a5a29922045a830221b8f78ec74a5f544944f3d5984f8ec3895ef64"
"checksum serde_json 1.0.46 (registry+https://github.com/rust-lang/crates.io-index)" = "21b01d7f0288608a01dca632cf1df859df6fd6ffa885300fc275ce2ba6221953"
"checksum serde_json 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)" = "9371ade75d4c2d6cb154141b9752cf3781ec9c05e0e5cf35060e1e70ee7b9c25"
"checksum sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
"checksum smallvec 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5c2fb2ec9bcd216a5b0d0ccf31ab17b5ed1d627960edff65bbe95d3ce221cefc"
"checksum spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"

2
Cargo.toml
View file

@ -8,7 +8,9 @@ edition = "2018"
members = [
"enterprise-compiler",
"enterprise-macros",
"symbol",
"syn-serde",
"examples/helloworld",
]

2
enterprise-compiler/Cargo.toml
View file

@ -15,4 +15,6 @@ serde = "1.0.104"
serde_derive = "1.0.104"
spin = "0.5.2"
symbol = { path = "../symbol" }
syn-serde = { path = "../syn-serde" }
syn = { version = "1.0.14", features = ["extra-traits", "full"] }
serde_json = "1.0.48"

50
enterprise-compiler/src/lib.rs
View file

@ -7,26 +7,32 @@ extern crate serde_derive;
pub mod model;
mod visitor;
mod tuple_map;
use std::collections::HashMap;
use std::env;
use std::fs::File;
use std::io::Write;
use std::path::PathBuf;
use crate::model::{Elem, Rsx, TagLhs};
use crate::model::{Component, Elem, Rsx, TagLhs};
use crate::visitor::Visitor;
use proc_macro2::TokenStream;
use symbol::Symbol;
use syn::Expr;
fn process(
name: impl AsRef<str>,
datamodel: &HashMap<String, String>,
datainit: &HashMap<String, String>,
dom: &[Rsx],
pub fn build(
// name: impl AsRef<str>,
// datamodel: &HashMap<String, String>,
// datainit: &HashMap<String, String>,
// dom: &[Rsx],
component: &Component,
) -> TokenStream {
let name = name.as_ref();
let name = &component.name;
let mut visitor = Visitor::new();
visitor.load_model(&datamodel);
let new_dom = visitor.make_graph(&dom);
visitor.load_model(&component.model);
let new_dom = visitor.make_graph(&component.view);
let toplevel_names = visitor.gen_code(&new_dom);
// let graph: Graph<_, _, _> = visitor.deps.clone().into_graph();
@ -35,17 +41,13 @@ fn process(
let name = format_ident!("{}", name);
let mut model = TokenStream::new();
let mut init = TokenStream::new();
for (name, ty) in datamodel {
let name = format_ident!("{}", name);
// TODO: parse this into an actual expression tree for Vec<T>
let ty = format_ident!("{}", ty);
for (name, (ty, value)) in component.model.iter() {
let name = format_ident!("{}", name.as_str());
let ty: syn::Type = ty.into();
let value: syn::Expr = value.into();
model.extend(quote! { #name : std::sync::Arc<enterprise::parking_lot::Mutex<#ty>> , });
}
for (name, value) in datainit {
let name = format_ident!("{}", name);
let value = syn::parse_str::<Expr>(&value).unwrap();
init.extend(
quote! { #name : std::sync::Arc::new(enterprise::parking_lot::Mutex::new(#value)) , },
quote! { #name : std::sync::Arc::new(enterprise::parking_lot::Mutex::new(#value .into())) , },
);
}
@ -63,13 +65,13 @@ fn process(
}
quote! {
struct #name<B> {
pub struct #name<B> {
_b: std::marker::PhantomData<B>,
#model
}
impl<B> #name<B> {
fn new(_: &B) -> Self {
pub fn new(_: &B) -> Self {
#name {
_b: std::marker::PhantomData::default(),
#init
@ -87,6 +89,14 @@ fn process(
}
}
pub fn process(mod_name: impl AsRef<str>, code: impl AsRef<str>) {
let component: Component = serde_json::from_str(code.as_ref()).unwrap();
let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
let mut out_file = File::create(out_dir.join(format!("{}.rs", mod_name.as_ref()))).unwrap();
let tokens = build(&component);
write!(out_file, "{}", tokens);
}
// #[proc_macro]
// pub fn example(_input_tokens: proc_macro::TokenStream) -> proc_macro::TokenStream {
// let helloworld_datamodel: HashMap<String, String> = hashmap! {

52
enterprise-compiler/src/model.rs
View file

@ -1,39 +1,71 @@
use std::collections::HashMap;
use proc_macro2::TokenStream;
use symbol::Symbol;
use syn::{Expr, Type};
use syn_serde::{Expr, Syn, Type};
pub type Id = Symbol;
pub type ModelMap = HashMap<Symbol, (Type, Expr)>;
#[derive(Debug)]
pub fn convert_map(map: HashMap<Symbol, (syn::Type, syn::Expr)>) -> ModelMap {
map.into_iter()
.map(|(name, (ty, expr))| {
let ty = ty.to_adapter();
let expr = expr.to_adapter();
(name, (ty, expr))
})
.collect()
}
#[derive(Debug, Serialize, Deserialize)]
pub struct Component {
pub name: String,
#[serde(with = "crate::tuple_map")]
pub model: ModelMap,
pub view: Rsx,
pub view: Vec<Rsx>,
}
#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
pub enum TagLhs {
Bind(String),
// On(String),
// Plain(String),
Plain(String),
On(String),
#[doc(hidden)]
_Nonexhaustive,
}
#[derive(Debug, Default)]
#[derive(Debug, Serialize, Deserialize)]
pub enum TagRhs {
Code(Expr),
Text(String),
}
impl Clone for TagRhs {
fn clone(&self) -> Self {
match self {
TagRhs::Code(expr) => {
let expr: syn::Expr = Syn::from_adapter(&*expr);
TagRhs::Code(expr.clone().to_adapter())
}
TagRhs::Text(string) => TagRhs::Text(string.clone()),
}
}
}
#[derive(Debug, Default, Serialize, Deserialize)]
pub struct Elem<T> {
pub tag: String,
pub attrs: HashMap<TagLhs, String>,
#[serde(with = "crate::tuple_map")]
pub attrs: HashMap<TagLhs, TagRhs>,
pub inner: Vec<T>,
}
#[derive(Debug)]
#[derive(Debug, Serialize, Deserialize)]
pub enum Rsx {
Elem(Elem<Rsx>),
Code(Box<Expr>),
Code(Expr),
Text(String),
#[doc(hidden)]
@ -54,7 +86,7 @@ impl TaggedRsx {
pub fn get_id(&self) -> Id {
match self {
TaggedRsx::Elem(id, _) | TaggedRsx::Code(id, _) | TaggedRsx::Text(id, _) => *id,
_ => unimplemented!(),
_ => unimplemented!("tagged rsx"),
}
}
}

82
enterprise-compiler/src/tuple_map.rs Normal file
View file

@ -0,0 +1,82 @@
// https://github.com/daboross/serde-tuple-vec-map/blob/master/src/lib.rs
use std::hash::Hash;
use std::marker::PhantomData;
use std::fmt;
use std::cmp;
use std::collections::HashMap;
use serde::{de::{Visitor, Deserialize, Deserializer, SeqAccess}, ser::{Serialize, Serializer}};
struct TupleVecMapVisitor<K, V> {
marker: PhantomData<HashMap<K, V>>,
}
impl<K, V> TupleVecMapVisitor<K, V> {
pub fn new() -> Self {
TupleVecMapVisitor {
marker: PhantomData,
}
}
}
impl<'de, K: Eq + Hash, V> Visitor<'de> for TupleVecMapVisitor<K, V>
where
K: Deserialize<'de>,
V: Deserialize<'de>,
{
type Value = HashMap<K, V>;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("a map")
}
#[inline]
fn visit_unit<E>(self) -> Result<Self::Value, E> {
Ok(HashMap::new())
}
#[inline]
fn visit_seq<T>(self, mut seq: T) -> Result<Self::Value, T::Error>
where
T: SeqAccess<'de>,
{
let mut values = HashMap::new();
while let Some((key, value)) = seq.next_element()? {
values.insert(key, value);
}
Ok(values)
}
}
/// Serialize an array of `(K, V)` pairs as if it were a `HashMap<K, V>`.
///
/// In formats where dictionaries are ordered, this maintains the input data's order. Each pair is treated as a single
/// entry into the dictionary.
///
/// Behavior when duplicate keys are present in the data is unspecified and serializer-dependent. This function does
/// not check for duplicate keys and will not warn the serializer.
pub fn serialize<K: Eq + Hash, V, S>(data: &HashMap<K, V>, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
K: Serialize,
V: Serialize,
{
serializer.collect_seq(data.iter().map(|x| (x.0, x.1)))
}
/// Deserialize to a `Vec<(K, V)>` as if it were a `HashMap<K, V>`.
///
/// This directly deserializes into the returned vec with no intermediate allocation.
///
/// In formats where dictionaries are ordered, this maintains the input data's order.
pub fn deserialize<'de, K: Eq + Hash, V, D>(deserializer: D) -> Result<HashMap<K, V>, D::Error>
where
D: Deserializer<'de>,
K: Deserialize<'de>,
V: Deserialize<'de>,
{
deserializer.deserialize_seq(TupleVecMapVisitor::new())
}

62
enterprise-compiler/src/visitor.rs
View file

@ -6,9 +6,10 @@ use petgraph::graphmap::DiGraphMap;
use petgraph::visit::Dfs;
use proc_macro2::{TokenStream, TokenTree};
use quote::ToTokens;
use syn::Expr;
use syn::{Expr, Type};
use syn_serde::Syn;
use crate::model::{Elem, Id, Rsx, TagLhs, TaggedRsx};
use crate::model::{Elem, Id, ModelMap, Rsx, TagLhs, TagRhs, TaggedRsx};
use crate::Symbol;
#[derive(Copy, Clone, Debug, Hash, PartialOrd, Ord, PartialEq, Eq)]
@ -26,13 +27,13 @@ pub enum DepNode {
impl DepNode {
fn gen_update_code(
&self,
model_bimap: &BiHashMap<Id, String>,
// model_bimap: &BiHashMap<Id, String>,
updates: &mut TokenStream,
update_func: &mut TokenStream,
) {
match self {
DepNode::ModelValue(sym) => {
let sym_name = format_ident!("{}", model_bimap.get_by_left(&sym).unwrap());
let sym_name = format_ident!("{}", sym.to_string());
let inner_lock = format_ident!("inner_lock_{}", Symbol::gensym().as_str());
updates.extend(quote! {
let #inner_lock = self.#sym_name.clone();
@ -66,12 +67,11 @@ type DependencyGraph = DiGraphMap<DepNode, ()>;
pub struct Visitor {
idx: u32,
pub(crate) deps: DependencyGraph,
model: HashMap<Id, String>,
model: HashMap<Id, (Type, Expr)>,
pub(crate) impl_code: TokenStream,
elem_attr_map: HashMap<Id, HashSet<Id>>,
// symbol maps
model_bimap: BiHashMap<Id, String>,
// model_bimap: BiHashMap<Id, String>,
}
impl Visitor {
@ -81,11 +81,13 @@ impl Visitor {
}
}
pub fn load_model(&mut self, model: &HashMap<String, String>) {
for (key, value) in model {
pub fn load_model(&mut self, model: &ModelMap) {
for (key, (ty, init)) in model {
let id = Symbol::gensym();
self.model_bimap.insert(id, key.clone());
self.model.insert(id, value.clone());
// self.model_bimap.insert(id, key.clone());
let ty = Syn::from_adapter(&*ty);
let init = Syn::from_adapter(&*init);
self.model.insert(key.clone(), (ty, init));
}
// self.model.extend(model.clone());
}
@ -99,16 +101,19 @@ impl Visitor {
let tag_inner = self.make_graph(&inner);
for (lhs, rhs) in attrs {
if let TagLhs::Bind(attr) = lhs {
if let Some(id) = self.model_bimap.get_by_right(rhs) {
let from = DepNode::RsxAttr(node_id, Symbol::from(attr));
let to = DepNode::ModelValue(*id);
self.deps.add_edge(from, to, ());
if let Some(set) = self.elem_attr_map.get_mut(&node_id) {
set.insert(Symbol::from(attr));
} else {
let mut set = HashSet::new();
set.insert(Symbol::from(attr));
self.elem_attr_map.insert(node_id, set);
if let TagRhs::Text(text) = rhs {
let text_sym = Symbol::from(text);
if self.model.contains_key(&text_sym) {
let from = DepNode::RsxAttr(node_id, Symbol::from(attr));
let to = DepNode::ModelValue(text_sym);
self.deps.add_edge(from, to, ());
if let Some(set) = self.elem_attr_map.get_mut(&node_id) {
set.insert(Symbol::from(attr));
} else {
let mut set = HashSet::new();
set.insert(Symbol::from(attr));
self.elem_attr_map.insert(node_id, set);
}
}
}
}
@ -123,14 +128,15 @@ impl Visitor {
)
}
Rsx::Code(expr) => {
let deps = self.extract_model_dependencies(expr);
let syn_expr = Syn::from_adapter(&*expr);
let deps = self.extract_model_dependencies(&syn_expr);
for dep in deps {
let from = DepNode::ModelValue(dep);
let to = DepNode::RsxSpan(node_id);
self.deps.add_edge(from, to, ());
}
TaggedRsx::Code(node_id, expr.clone())
TaggedRsx::Code(node_id, Box::new(syn_expr.clone().to_adapter()))
}
Rsx::Text(literal) => TaggedRsx::Text(node_id, literal.clone()),
_ => unimplemented!(),
@ -156,7 +162,7 @@ impl Visitor {
while let Some(nx) = dfs.next(&self.deps) {
if nx != starting {
nx.gen_update_code(
&self.model_bimap,
// &self.model_bimap,
&mut updates,
&mut update_func,
);
@ -204,7 +210,7 @@ impl Visitor {
}
});
}
_ => unimplemented!(),
_ => unimplemented!("gen_code tagged rsx"),
}
names.push(format!("{}", make_node_id));
}
@ -218,8 +224,10 @@ impl Visitor {
for token in tokens.into_iter() {
if let TokenTree::Ident(ident) = token {
if let Some(id) = self.model_bimap.get_by_right(&ident.to_string()) {
result.insert(*id);
// if let Some(id) = self.model_bimap.get_by_right(&ident.to_string()) {
let sym = Symbol::from(ident.to_string());
if self.model.contains_key(&sym) {
result.insert(sym);
}
// result.insert(format!("{}", ident));
}

2
enterprise-macros/Cargo.toml
View file

@ -13,4 +13,6 @@ quote = "1.0.2"
thiserror = "1.0.9"
symbol = { path = "../symbol" }
enterprise-compiler = { path = "../enterprise-compiler" }
syn-serde = { path = "../syn-serde" }
syn = { version = "1.0.14", features = ["extra-traits", "full"] }
serde_json = "1.0.48"

149
enterprise-macros/src/lib.rs
View file

@ -2,20 +2,26 @@ extern crate proc_macro;
#[macro_use]
extern crate quote;
mod rsx;
use std::collections::HashMap;
use std::iter::FromIterator;
use std::iter::Peekable;
use enterprise_compiler::model::{Component, ModelMap, Rsx};
use quote::ToTokens;
use enterprise_compiler::model::{Component, Elem, ModelMap, Rsx};
use syn_serde::Syn;
use proc_macro2::{
token_stream::IntoIter, Delimiter, Group, Ident, Punct, Spacing, TokenStream, TokenTree,
};
use symbol::Symbol;
use syn::{
parse::{Parse, ParseStream},
Error as SynError, Expr, Result as SynResult, Token, Type,
Error as SynError, Expr, Lit, Result as SynResult, Token, Type,
};
use crate::rsx::{RsxParser, RsxToken};
#[derive(Debug)]
enum ParseError {
ExpectedKeyword(Symbol, Ident),
@ -23,12 +29,14 @@ enum ParseError {
ExpectedGroup(TokenTree),
ExpectedPunct(TokenTree),
WrongDelimiter(Delimiter, Delimiter),
WrongPunct(Punct, Punct),
WrongPunct(char, Punct),
Syn(SynError),
UnexpectedEOF,
UnexpectedKeyword,
MissingModel,
MissingView,
InvalidRsx(TokenTree),
UnmatchedOpenTag(TokenTree),
}
impl From<SynError> for ParseError {
@ -39,7 +47,7 @@ impl From<SynError> for ParseError {
enum ComponentBlock {
Model(ModelMap),
View(Rsx),
View(Vec<Rsx>),
}
struct Visitor(Peekable<IntoIter>);
@ -55,7 +63,7 @@ impl Visitor {
}
self.consume_keyword("component")?;
let name = self.consume_ident()?.to_string();
let name = consume_ident(&mut self.0)?.to_string();
let def = self.consume_group(Delimiter::Brace)?;
let mut def_visitor = Visitor::from_tokens(def.stream());
let mut model_map = None;
@ -84,7 +92,7 @@ impl Visitor {
return Ok(None);
}
let next_ident = self.consume_ident()?;
let next_ident = consume_ident(&mut self.0)?;
match next_ident.to_string().as_ref() {
"model" => {
let next_group = self.consume_group(Delimiter::Brace)?;
@ -156,7 +164,7 @@ impl Visitor {
let stream = TokenStream::from_iter(buf);
let item = syn::parse2::<ModelEntry>(stream)?;
println!("ITEM: {:?}", item);
// println!("ITEM: {:?}", item);
Ok(Some((
Symbol::from(item.name.to_string()),
@ -173,18 +181,40 @@ impl Visitor {
break;
}
}
Ok(map)
Ok(enterprise_compiler::model::convert_map(map))
}
fn consume_view(&mut self) -> Result<Rsx, ParseError> {
let lt = self.consume_punct(Some(Punct::new('<', Spacing::Alone)))?;
let gt = self.consume_punct(Some(Punct::new('>', Spacing::Alone)))?;
Ok(Rsx::Text(String::new()))
fn consume_view(&mut self) -> Result<Vec<Rsx>, ParseError> {
let mut rsx_parser = RsxParser::new(self.0.clone());
let mut result = Vec::new();
while let Some(next_token) = rsx_parser.next() {
match next_token? {
RsxToken::EmptyTag(name, attrs) => {
let elem = Elem {
tag: name.to_string(),
attrs,
inner: vec![],
};
let el = Rsx::Elem(elem);
result.push(el);
}
RsxToken::Code(expr) => {
result.push(Rsx::Code(expr.to_adapter()));
}
RsxToken::Str(string) => {
result.push(Rsx::Text(string));
}
_ => (),
}
}
Ok(result)
}
fn consume_keyword(&mut self, keyword: impl AsRef<str>) -> Result<(), ParseError> {
let keyword = keyword.as_ref();
let ident = self.consume_ident()?;
let ident = consume_ident(&mut self.0)?;
let ident_str = ident.to_string();
if keyword == &ident_str {
@ -194,42 +224,6 @@ impl Visitor {
}
}
fn consume_punct(&mut self, equals: Option<Punct>) -> Result<Punct, ParseError> {
let next_token = self.0.peek();
if next_token.is_none() {
return Err(ParseError::UnexpectedEOF);
}
let next_token = self.0.next().expect("unreachable");
if let TokenTree::Punct(punct) = next_token {
if let Some(equals) = equals {
if punct.as_char() == equals.as_char() && punct.spacing() == equals.spacing() {
Ok(punct)
} else {
Err(ParseError::WrongPunct(equals, punct))
}
} else {
Ok(punct)
}
} else {
Err(ParseError::ExpectedPunct(next_token))
}
}
fn consume_ident(&mut self) -> Result<Ident, ParseError> {
let next_token = self.0.peek();
if next_token.is_none() {
return Err(ParseError::UnexpectedEOF);
}
let next_token = self.0.next().expect("unreachable");
if let TokenTree::Ident(ident) = next_token {
Ok(ident)
} else {
Err(ParseError::ExpectedIdent(next_token))
}
}
fn consume_group(&mut self, delimiter: Delimiter) -> Result<Group, ParseError> {
let next_token = self.0.peek();
if next_token.is_none() {
@ -249,6 +243,47 @@ impl Visitor {
}
}
fn consume_punct(
iter: &mut Peekable<impl Iterator<Item = TokenTree>>,
equals: Option<char>,
) -> Result<Punct, ParseError> {
let next_token = iter.peek();
if next_token.is_none() {
return Err(ParseError::UnexpectedEOF);
}
let next_token = iter.next().expect("unreachable");
if let TokenTree::Punct(punct) = next_token {
if let Some(equals) = equals {
if punct.as_char() == equals {
Ok(punct)
} else {
Err(ParseError::WrongPunct(equals, punct))
}
} else {
Ok(punct)
}
} else {
Err(ParseError::ExpectedPunct(next_token))
}
}
fn consume_ident(
iter: &mut Peekable<impl Iterator<Item = TokenTree>>,
) -> Result<Ident, ParseError> {
let next_token = iter.peek();
if next_token.is_none() {
return Err(ParseError::UnexpectedEOF);
}
let next_token = iter.next().expect("unreachable");
if let TokenTree::Ident(ident) = next_token {
Ok(ident)
} else {
Err(ParseError::ExpectedIdent(next_token))
}
}
impl Iterator for Visitor {
type Item = Result<Component, ParseError>;
@ -264,11 +299,19 @@ impl Iterator for Visitor {
#[proc_macro]
pub fn component(input_tokens: proc_macro::TokenStream) -> proc_macro::TokenStream {
let input_tokens: TokenStream = input_tokens.into();
println!("TOKENS: {:?}", input_tokens);
// println!("TOKENS: {:?}", input_tokens);
let visitor = Visitor::from_tokens(input_tokens);
// TODO: allow importing and stuff
let mut output = TokenStream::new();
for component in visitor {
println!("- {:?}", component);
println!("- {:#?}", component);
let component = component.expect("holy shiet");
let name = format_ident!("{}", component.name);
let serialized = serde_json::to_string(&component).expect("fucking json");
output.extend(quote! {
const #name: &'static str = #serialized;
});
}
panic!();
(quote! {}).into()
output.into()
}

191
enterprise-macros/src/rsx.rs Normal file
View file

@ -0,0 +1,191 @@
use std::collections::HashMap;
use std::iter::FromIterator;
use std::iter::Peekable;
use enterprise_compiler::model::{TagLhs, TagRhs};
use proc_macro2::{token_stream::IntoIter, Delimiter, Ident, Spacing, TokenStream, TokenTree};
use symbol::Symbol;
use syn::{Expr, Lit};
use syn_serde::Syn;
use crate::ParseError;
use crate::{consume_ident, consume_punct};
pub(crate) struct RsxParser(Peekable<IntoIter>);
impl RsxParser {
pub fn new(tokens: impl Iterator<Item = TokenTree>) -> Self {
let tokens = TokenStream::from_iter(tokens);
RsxParser(tokens.into_iter().peekable())
}
pub fn next_token(&mut self) -> Result<Option<RsxToken>, ParseError> {
let token = self.0.peek();
if token.is_none() {
return Ok(None);
}
let token = self.0.next().expect("unreachable");
match token {
TokenTree::Punct(ref punct) if punct.as_char() == '<' => {
let next_token = self.0.peek();
if next_token.is_none() {
return Err(ParseError::UnmatchedOpenTag(token));
}
let next_token = next_token.expect("unreachable");
let is_closing = if let TokenTree::Punct(punct2) = next_token {
if punct2.as_char() == '/' {
self.0.next();
true
} else {
false
}
} else {
false
};
let name = self.consume_ident()?;
if is_closing {
return Ok(Some(RsxToken::ClosingTag(Symbol::from(name.to_string()))));
}
// read until closing tag
let mut buf = Vec::new();
let mut prev_tag = None;
let mut is_empty = false;
loop {
let next_token = self.0.peek();
if next_token.is_none() {
// probably wrong error?
return Err(ParseError::UnexpectedEOF);
}
let next_token = self.0.next().expect("unreachable");
if let TokenTree::Punct(ref punct) = next_token {
if punct.as_char() == '>' {
if let Some(TokenTree::Punct(ref punct2)) = prev_tag {
if punct2.as_char() == '/' {
buf.truncate(buf.len() - 1);
is_empty = true;
}
}
break;
}
}
prev_tag = Some(next_token.clone());
buf.push(next_token);
}
let mut attrs = HashMap::new();
let mut iter = buf.into_iter().peekable();
loop {
// consume a single attr
let next_token = iter.peek();
if next_token.is_none() {
break;
}
let name_or_prefix = consume_ident(&mut iter)?.to_string();
let lhs = if let Some(TokenTree::Punct(ref punct)) = iter.peek() {
if punct.as_char() == ':' {
iter.next();
let name = consume_ident(&mut iter)?.to_string();
if name_or_prefix == "bind" {
TagLhs::Bind(name)
} else if name_or_prefix == "on" {
TagLhs::On(name)
} else {
unimplemented!("these are wrong states")
}
} else if punct.as_char() == '=' {
TagLhs::Plain(name_or_prefix.to_string())
} else {
unimplemented!("these are wrong states")
}
} else {
unimplemented!("these are wrong states")
};
consume_punct(&mut iter, Some('='));
let next_token = iter.next();
let rhs = match next_token {
Some(TokenTree::Literal(lit)) => {
let mut stream = TokenStream::from(TokenTree::Literal(lit));
let lit = syn::parse2::<Lit>(stream)?;
if let Lit::Str(string) = lit {
TagRhs::Text(string.value())
} else {
unimplemented!("grrr")
}
}
Some(TokenTree::Group(group)) if group.delimiter() == Delimiter::Brace => {
let expr = syn::parse2::<Expr>(group.stream())?;
TagRhs::Code(expr.to_adapter())
}
_ => unimplemented!("wrong state: {:?}", next_token),
};
attrs.insert(lhs, rhs);
}
let variant = if is_empty {
RsxToken::EmptyTag
} else {
RsxToken::OpeningTag
};
return Ok(Some(variant(Symbol::from(name.to_string()), attrs)));
}
TokenTree::Literal(lit) => {
let mut stream = TokenStream::from(TokenTree::Literal(lit));
let lit = syn::parse2::<Lit>(stream)?;
if let Lit::Str(string) = lit {
return Ok(Some(RsxToken::Str(string.value())));
}
}
TokenTree::Group(group) if group.delimiter() == Delimiter::Brace => {
let expr = syn::parse2::<Expr>(group.stream())?;
return Ok(Some(RsxToken::Code(expr)));
}
_ => unimplemented!("TOKEN: {:?}", token),
};
unimplemented!("the fuck")
}
fn consume_ident(&mut self) -> Result<Ident, ParseError> {
let next_token = self.0.peek();
if next_token.is_none() {
return Err(ParseError::UnexpectedEOF);
}
let next_token = self.0.next().expect("unreachable");
if let TokenTree::Ident(ident) = next_token {
Ok(ident)
} else {
Err(ParseError::ExpectedIdent(next_token))
}
}
}
#[derive(Debug)]
pub(crate) enum RsxToken {
OpeningTag(Symbol, HashMap<TagLhs, TagRhs>),
EmptyTag(Symbol, HashMap<TagLhs, TagRhs>),
ClosingTag(Symbol),
Str(String),
Code(Expr),
}
impl Iterator for RsxParser {
type Item = Result<RsxToken, ParseError>;
fn next(&mut self) -> Option<Self::Item> {
match self.next_token() {
Ok(Some(token)) => Some(Ok(token)),
Ok(None) => None,
Err(err) => Some(Err(err)),
}
}
}

2
examples/helloworld/Cargo.toml
View file

@ -8,7 +8,9 @@ build = "src/build.rs"
[build-dependencies]
enterprise-compiler = { path = "../../enterprise-compiler" }
enterprise-macros = { path = "../../enterprise-macros" }
enterprise = { path = "../.." }
[dependencies]
stdweb = "0.4.20"
enterprise-macros = { path = "../../enterprise-macros" }
enterprise = { path = "../.." }

8
examples/helloworld/src/build.rs
View file

@ -8,10 +8,12 @@ component! {
}
view {
<TextBox bind:value="name" />
Hello, {name}!
<input bind:value="name" />
"Hello, " {name} "!"
}
}
}
fn main() {}
fn main() {
enterprise_compiler::process("helloworld", HelloWorld);
}

4
examples/helloworld/src/main.rs
View file

@ -1,13 +1,13 @@
#[macro_use]
extern crate enterprise;
extern crate stdweb;
enterprise_mod!(helloworld);
use std::sync::Arc;
use enterprise::{Backend, Component, Web};
example!();
use crate::helloworld::HelloWorld;
fn main() {
stdweb::initialize();

10
src/lib.rs
View file

@ -18,3 +18,13 @@ pub trait Component<B: Backend> {
/// TODO: replace this with a real init function.
fn create(&self, el: &crate::stdweb::web::Element);
}
/// Declares a mod
#[macro_export]
macro_rules! enterprise_mod {
($vis:vis $name:ident) => {
$vis mod $name {
include!(concat!(env!("OUT_DIR"), "/", stringify!($name), ".rs"));
}
}
}

2
symbol/Cargo.toml
View file

@ -9,3 +9,5 @@ edition = "2018"
[dependencies]
lazy_static = "1.4.0"
spin = "0.5.2"
serde_derive = "1.0.104"
serde = "1.0.104"

35
symbol/src/lib.rs
View file

@ -1,13 +1,20 @@
// cribbed from https://github.com/remexre/symbol-rs
#[macro_use]
extern crate serde_derive;
use std::cmp::Ordering;
use std::collections::BTreeSet;
use std::fmt::{Debug, Display, Formatter, Result as FmtResult};
use std::fmt::{self, Debug, Display, Formatter, Result as FmtResult};
use std::mem::{forget, transmute};
use std::ops::Deref;
use std::sync::atomic::{AtomicUsize, Ordering as AtomicOrdering};
use lazy_static::lazy_static;
use serde::{
de::{Deserialize, Deserializer, Visitor},
ser::{Serialize, Serializer},
};
use spin::Mutex;
lazy_static! {
@ -111,3 +118,29 @@ fn leak_string(s: String) -> &'static str {
forget(s);
out
}
// SERDE
impl Serialize for Symbol {
fn serialize<S: Serializer>(&self, s: S) -> Result<S::Ok, S::Error> {
s.serialize_str(self.s)
}
}
impl<'d> Deserialize<'d> for Symbol {
fn deserialize<D: Deserializer<'d>>(d: D) -> Result<Self, D::Error> {
d.deserialize_str(SymVisitor)
}
}
struct SymVisitor;
impl<'d> Visitor<'d> for SymVisitor {
type Value = Symbol;
fn expecting(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "symbol")
}
fn visit_str<E>(self, string: &str) -> Result<Self::Value, E> {
Ok(Symbol::from(string))
}
}

1
syn-serde Submodule

@ -0,0 +1 @@
Subproject commit dff506bb8a83702e2dc82b17177dda43e6de0f3a