use std::fs;
use std::path::PathBuf;
use genco::prelude::*;
use xshell::Shell;
use crate::cairo_spec::get_spec;
use crate::spec::{Member, Node, NodeKind, Variant, Variants};
pub fn project_root() -> PathBuf {
let dir = env!("CARGO_MANIFEST_DIR");
let res = PathBuf::from(dir).parent().unwrap().parent().unwrap().to_owned();
assert!(res.join("Cargo.toml").exists(), "Could not find project root directory.");
res
}
pub fn ensure_file_content(filename: PathBuf, content: String) {
if let Ok(old_contents) = fs::read_to_string(&filename) {
if old_contents == content {
return;
}
}
fs::write(&filename, content).unwrap();
}
pub fn get_codes() -> Vec<(String, String)> {
vec![
(
"crates/cairo-lang-syntax/src/node/ast.rs".into(),
reformat_rust_code(generate_ast_code().to_string().unwrap()),
),
(
"crates/cairo-lang-syntax/src/node/kind.rs".into(),
reformat_rust_code(generate_kinds_code().to_string().unwrap()),
),
(
"crates/cairo-lang-syntax/src/node/key_fields.rs".into(),
reformat_rust_code(generate_key_fields_code().to_string().unwrap()),
),
]
}
pub fn reformat_rust_code(text: String) -> String {
reformat_rust_code_inner(reformat_rust_code_inner(text))
}
pub fn reformat_rust_code_inner(text: String) -> String {
let sh = Shell::new().unwrap();
let cmd = sh.cmd("rustfmt").env("RUSTUP_TOOLCHAIN", "nightly-2024-11-23");
let cmd_with_args = cmd.arg("--config-path").arg(project_root().join("rustfmt.toml"));
let mut stdout = cmd_with_args.stdin(text).read().unwrap();
if !stdout.ends_with('\n') {
stdout.push('\n');
}
stdout
}
fn generate_kinds_code() -> rust::Tokens {
let spec = get_spec();
let mut tokens = quote! {
$("// Autogenerated file. To regenerate, please run `cargo run --bin generate-syntax`.\n")
use core::fmt;
};
let kinds = name_tokens(&spec, |k| !matches!(k, NodeKind::Enum { .. }));
let token_kinds = name_tokens(&spec, |k| matches!(k, NodeKind::Token { .. }));
let keyword_token_kinds =
name_tokens(&spec, |k| matches!(k, NodeKind::Token { is_keyword } if *is_keyword));
let terminal_kinds = name_tokens(&spec, |k| matches!(k, NodeKind::Terminal { .. }));
let keyword_terminal_kinds =
name_tokens(&spec, |k| matches!(k, NodeKind::Terminal { is_keyword, .. } if *is_keyword));
tokens.extend(quote! {
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq)]
pub enum SyntaxKind {
$(for t in kinds => $t,)
}
impl SyntaxKind {
pub fn is_token(&self) -> bool {
matches!(
*self,
$(for t in token_kinds join ( | ) => SyntaxKind::$t)
)
}
pub fn is_terminal(&self) -> bool {
matches!(
*self,
$(for t in terminal_kinds join ( | ) => SyntaxKind::$t)
)
}
pub fn is_keyword_token(&self) -> bool {
matches!(
*self,
$(for t in keyword_token_kinds join ( | ) => SyntaxKind::$t)
)
}
pub fn is_keyword_terminal(&self) -> bool {
matches!(
*self,
$(for t in keyword_terminal_kinds join ( | ) => SyntaxKind::$t)
)
}
}
impl fmt::Display for SyntaxKind {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{self:?}")
}
}
});
tokens
}
fn name_tokens(spec: &[Node], predicate: impl Fn(&NodeKind) -> bool) -> impl Iterator<Item = &str> {
spec.iter().filter(move |n| predicate(&n.kind)).map(|n| n.name.as_str())
}
fn generate_key_fields_code() -> rust::Tokens {
let spec = get_spec();
let mut arms = rust::Tokens::new();
for Node { name, kind } in spec.into_iter() {
match kind {
NodeKind::Struct { members } | NodeKind::Terminal { members, .. } => {
let mut fields = rust::Tokens::new();
for (i, member) in members.into_iter().enumerate() {
let field_name = member.name;
if member.key {
fields.extend(quote! { $("/*") $field_name $("*/") children[$i], });
}
}
arms.extend(quote! {
SyntaxKind::$name => {vec![$fields]},
});
}
NodeKind::List { .. } | NodeKind::SeparatedList { .. } | NodeKind::Token { .. } => {
arms.extend(quote! {
SyntaxKind::$name => vec![],
});
}
NodeKind::Enum { .. } => {}
}
}
let tokens = quote! {
$("// Autogenerated file. To regenerate, please run `cargo run --bin generate-syntax`.\n")
use super::ids::GreenId;
use super::kind::SyntaxKind;
$("/// Gets the vector of children ids that are the indexing key for this SyntaxKind.\n")
$("///\n")
$("/// Each SyntaxKind has some children that are defined in the spec to be its indexing key\n")
$("/// for its stable pointer. See [super::stable_ptr].\n")
pub fn get_key_fields(kind: SyntaxKind, children: &[GreenId]) -> Vec<GreenId> {
match kind {
$arms
}
}
};
tokens
}
fn generate_ast_code() -> rust::Tokens {
let spec = get_spec();
let mut tokens = quote! {
$("// Autogenerated file. To regenerate, please run `cargo run --bin generate-syntax`.\n")
#![allow(clippy::match_single_binding)]
#![allow(clippy::too_many_arguments)]
#![allow(dead_code)]
#![allow(unused_variables)]
use std::ops::Deref;
use std::sync::Arc;
use cairo_lang_filesystem::span::TextWidth;
use cairo_lang_utils::{extract_matches, Intern, LookupIntern};
use smol_str::SmolStr;
use super::element_list::ElementList;
use super::green::GreenNodeDetails;
use super::kind::SyntaxKind;
use super::{
GreenId, GreenNode, SyntaxGroup, SyntaxNode, SyntaxStablePtr, SyntaxStablePtrId,
Terminal, Token, TypedStablePtr, TypedSyntaxNode,
};
#[path = "ast_ext.rs"]
mod ast_ext;
};
let spec_clone = spec.clone();
let all_tokens: Vec<_> =
spec_clone.iter().filter(|node| matches!(node.kind, NodeKind::Terminal { .. })).collect();
for Node { name, kind } in spec.into_iter() {
tokens.extend(match kind {
NodeKind::Enum { variants, missing_variant } => {
let variants_list = match variants {
Variants::List(variants) => variants,
Variants::AllTokens => all_tokens
.iter()
.map(|node| Variant { name: node.name.clone(), kind: node.name.clone() })
.collect(),
};
gen_enum_code(name, variants_list, missing_variant)
}
NodeKind::Struct { members } => gen_struct_code(name, members, false),
NodeKind::Terminal { members, .. } => gen_struct_code(name, members, true),
NodeKind::Token { .. } => gen_token_code(name),
NodeKind::List { element_type } => gen_list_code(name, element_type),
NodeKind::SeparatedList { element_type, separator_type } => {
gen_separated_list_code(name, element_type, separator_type)
}
});
}
tokens
}
fn gen_list_code(name: String, element_type: String) -> rust::Tokens {
let ptr_name = format!("{name}Ptr");
let green_name = format!("{name}Green");
let element_green_name = format!("{element_type}Green");
let common_code = gen_common_list_code(&name, &green_name, &ptr_name);
quote! {
#[derive(Clone, Debug, Eq, Hash, PartialEq)]
pub struct $(&name)(ElementList<$(&element_type),1>);
impl Deref for $(&name){
type Target = ElementList<$(&element_type),1>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl $(&name){
pub fn new_green(
db: &dyn SyntaxGroup, children: Vec<$(&element_green_name)>
) -> $(&green_name) {
let width = children.iter().map(|id|
id.0.lookup_intern(db).width()).sum();
$(&green_name)(Arc::new(GreenNode {
kind: SyntaxKind::$(&name),
details: GreenNodeDetails::Node {
children: children.iter().map(|x| x.0).collect(),
width,
},
}).intern(db))
}
}
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub struct $(&ptr_name)(pub SyntaxStablePtrId);
impl TypedStablePtr for $(&ptr_name) {
type SyntaxNode = $(&name);
fn untyped(&self) -> SyntaxStablePtrId {
self.0
}
fn lookup(&self, db: &dyn SyntaxGroup) -> $(&name) {
$(&name)::from_syntax_node(db, self.0.lookup(db))
}
}
impl From<$(&ptr_name)> for SyntaxStablePtrId {
fn from(ptr: $(&ptr_name)) -> Self {
ptr.untyped()
}
}
$common_code
}
}
fn gen_separated_list_code(
name: String,
element_type: String,
separator_type: String,
) -> rust::Tokens {
let ptr_name = format!("{name}Ptr");
let green_name = format!("{name}Green");
let element_or_separator_green_name = format!("{name}ElementOrSeparatorGreen");
let element_green_name = format!("{element_type}Green");
let separator_green_name = format!("{separator_type}Green");
let common_code = gen_common_list_code(&name, &green_name, &ptr_name);
quote! {
#[derive(Clone, Debug, Eq, Hash, PartialEq)]
pub struct $(&name)(ElementList<$(&element_type),2>);
impl Deref for $(&name){
type Target = ElementList<$(&element_type),2>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl $(&name){
pub fn new_green(
db: &dyn SyntaxGroup, children: Vec<$(&element_or_separator_green_name)>
) -> $(&green_name) {
let width = children.iter().map(|id|
id.id().lookup_intern(db).width()).sum();
$(&green_name)(Arc::new(GreenNode {
kind: SyntaxKind::$(&name),
details: GreenNodeDetails::Node {
children: children.iter().map(|x| x.id()).collect(),
width,
},
}).intern(db))
}
}
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub struct $(&ptr_name)(pub SyntaxStablePtrId);
impl TypedStablePtr for $(&ptr_name) {
type SyntaxNode = $(&name);
fn untyped(&self) -> SyntaxStablePtrId {
self.0
}
fn lookup(&self, db: &dyn SyntaxGroup) -> $(&name) {
$(&name)::from_syntax_node(db, self.0.lookup(db))
}
}
impl From<$(&ptr_name)> for SyntaxStablePtrId {
fn from(ptr: $(&ptr_name)) -> Self {
ptr.untyped()
}
}
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub enum $(&element_or_separator_green_name) {
Separator($(&separator_green_name)),
Element($(&element_green_name)),
}
impl From<$(&separator_green_name)> for $(&element_or_separator_green_name) {
fn from(value: $(&separator_green_name)) -> Self {
$(&element_or_separator_green_name)::Separator(value)
}
}
impl From<$(&element_green_name)> for $(&element_or_separator_green_name) {
fn from(value: $(&element_green_name)) -> Self {
$(&element_or_separator_green_name)::Element(value)
}
}
impl $(&element_or_separator_green_name) {
fn id(&self) -> GreenId {
match self {
$(&element_or_separator_green_name)::Separator(green) => green.0,
$(&element_or_separator_green_name)::Element(green) => green.0,
}
}
}
$common_code
}
}
fn gen_common_list_code(name: &str, green_name: &str, ptr_name: &str) -> rust::Tokens {
quote! {
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub struct $green_name(pub GreenId);
impl TypedSyntaxNode for $name {
const OPTIONAL_KIND: Option<SyntaxKind> = Some(SyntaxKind::$name);
type StablePtr = $ptr_name;
type Green = $green_name;
fn missing(db: &dyn SyntaxGroup) -> Self::Green {
$green_name(Arc::new(
GreenNode {
kind: SyntaxKind::$name,
details: GreenNodeDetails::Node { children: vec![], width: TextWidth::default() },
}).intern(db)
)
}
fn from_syntax_node(db: &dyn SyntaxGroup, node: SyntaxNode) -> Self {
Self(ElementList::new(node))
}
fn as_syntax_node(&self) -> SyntaxNode {
self.node.clone()
}
fn stable_ptr(&self) -> Self::StablePtr {
$ptr_name(self.node.0.stable_ptr)
}
}
impl From<&$name> for SyntaxStablePtrId {
fn from(node: &$name) -> Self {
node.stable_ptr().untyped()
}
}
}
}
fn gen_enum_code(
name: String,
variants: Vec<Variant>,
missing_variant: Option<Variant>,
) -> rust::Tokens {
let ptr_name = format!("{name}Ptr");
let green_name = format!("{name}Green");
let mut enum_body = quote! {};
let mut from_node_body = quote! {};
let mut ptr_conversions = quote! {};
let mut green_conversions = quote! {};
for variant in &variants {
let n = &variant.name;
let k = &variant.kind;
enum_body.extend(quote! {
$n($k),
});
from_node_body.extend(quote! {
SyntaxKind::$k => $(&name)::$n($k::from_syntax_node(db, node)),
});
let variant_ptr = format!("{k}Ptr");
ptr_conversions.extend(quote! {
impl From<$(&variant_ptr)> for $(&ptr_name) {
fn from(value: $(&variant_ptr)) -> Self {
Self(value.0)
}
}
});
let variant_green = format!("{k}Green");
green_conversions.extend(quote! {
impl From<$(&variant_green)> for $(&green_name) {
fn from(value: $(&variant_green)) -> Self {
Self(value.0)
}
}
});
}
let missing_body = match missing_variant {
Some(missing) => quote! {
$(&green_name)($(missing.kind)::missing(db).0)
},
None => quote! {
panic!("No missing variant.");
},
};
quote! {
#[derive(Clone, Debug, Eq, Hash, PartialEq)]
pub enum $(&name){
$enum_body
}
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub struct $(&ptr_name)(pub SyntaxStablePtrId);
impl TypedStablePtr for $(&ptr_name) {
type SyntaxNode = $(&name);
fn untyped(&self) -> SyntaxStablePtrId {
self.0
}
fn lookup(&self, db: &dyn SyntaxGroup) -> $(&name) {
$(&name)::from_syntax_node(db, self.0.lookup(db))
}
}
impl From<$(&ptr_name)> for SyntaxStablePtrId {
fn from(ptr: $(&ptr_name)) -> Self {
ptr.untyped()
}
}
$ptr_conversions
$green_conversions
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub struct $(&green_name)(pub GreenId);
impl TypedSyntaxNode for $(&name){
const OPTIONAL_KIND: Option<SyntaxKind> = None;
type StablePtr = $(&ptr_name);
type Green = $(&green_name);
fn missing(db: &dyn SyntaxGroup) -> Self::Green {
$missing_body
}
fn from_syntax_node(db: &dyn SyntaxGroup, node: SyntaxNode) -> Self {
let kind = node.kind(db);
match kind{
$from_node_body
_ => panic!(
"Unexpected syntax kind {:?} when constructing {}.",
kind,
$[str]($[const](&name))),
}
}
fn as_syntax_node(&self) -> SyntaxNode {
match self {
$(for v in &variants => $(&name)::$(&v.name)(x) => x.as_syntax_node(),)
}
}
fn stable_ptr(&self) -> Self::StablePtr {
$(&ptr_name)(self.as_syntax_node().0.stable_ptr)
}
}
impl From<&$(&name)> for SyntaxStablePtrId {
fn from(node: &$(&name)) -> Self {
node.stable_ptr().untyped()
}
}
impl $(&name) {
$("/// Checks if a kind of a variant of [")$(&name)$("].\n")
pub fn is_variant(kind: SyntaxKind) -> bool {
matches!(kind, $(for v in &variants join (|) => SyntaxKind::$(&v.kind)))
}
}
}
}
fn gen_token_code(name: String) -> rust::Tokens {
let green_name = format!("{name}Green");
let ptr_name = format!("{name}Ptr");
quote! {
#[derive(Clone, Debug, Eq, Hash, PartialEq)]
pub struct $(&name) {
node: SyntaxNode,
}
impl Token for $(&name) {
fn new_green(db: &dyn SyntaxGroup, text: SmolStr) -> Self::Green {
$(&green_name)(Arc::new(GreenNode {
kind: SyntaxKind::$(&name),
details: GreenNodeDetails::Token(text),
}).intern(db))
}
fn text(&self, db: &dyn SyntaxGroup) -> SmolStr {
extract_matches!(&self.node.0.green.lookup_intern(db).details,
GreenNodeDetails::Token).clone()
}
}
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub struct $(&ptr_name)(pub SyntaxStablePtrId);
impl TypedStablePtr for $(&ptr_name) {
type SyntaxNode = $(&name);
fn untyped(&self) -> SyntaxStablePtrId {
self.0
}
fn lookup(&self, db: &dyn SyntaxGroup) -> $(&name) {
$(&name)::from_syntax_node(db, self.0.lookup(db))
}
}
impl From<$(&ptr_name)> for SyntaxStablePtrId {
fn from(ptr: $(&ptr_name)) -> Self {
ptr.untyped()
}
}
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub struct $(&green_name)(pub GreenId);
impl $(&green_name) {
pub fn text(&self, db: &dyn SyntaxGroup) -> SmolStr {
extract_matches!(
&self.0.lookup_intern(db).details, GreenNodeDetails::Token).clone()
}
}
impl TypedSyntaxNode for $(&name){
const OPTIONAL_KIND: Option<SyntaxKind> = Some(SyntaxKind::$(&name));
type StablePtr = $(&ptr_name);
type Green = $(&green_name);
fn missing(db: &dyn SyntaxGroup) -> Self::Green {
$(&green_name)(Arc::new(GreenNode {
kind: SyntaxKind::TokenMissing,
details: GreenNodeDetails::Token("".into()),
}).intern(db))
}
fn from_syntax_node(db: &dyn SyntaxGroup, node: SyntaxNode) -> Self {
match node.0.green.lookup_intern(db).details {
GreenNodeDetails::Token(_) => Self { node },
GreenNodeDetails::Node { .. } => panic!(
"Expected a token {:?}, not an internal node",
SyntaxKind::$(&name)
),
}
}
fn as_syntax_node(&self) -> SyntaxNode {
self.node.clone()
}
fn stable_ptr(&self) -> Self::StablePtr {
$(&ptr_name)(self.node.0.stable_ptr)
}
}
impl From<&$(&name)> for SyntaxStablePtrId {
fn from(node: &$(&name)) -> Self {
node.stable_ptr().untyped()
}
}
}
}
fn gen_struct_code(name: String, members: Vec<Member>, is_terminal: bool) -> rust::Tokens {
let green_name = format!("{name}Green");
let mut body = rust::Tokens::new();
let mut field_indices = quote! {};
let mut args = quote! {};
let mut params = quote! {};
let mut args_for_missing = quote! {};
let mut ptr_getters = quote! {};
let mut key_field_index: usize = 0;
for (i, Member { name, kind, key }) in members.iter().enumerate() {
let index_name = format!("INDEX_{}", name.to_uppercase());
field_indices.extend(quote! {
pub const $index_name : usize = $i;
});
let key_name_green = format!("{name}_green");
args.extend(quote! {$name.0,});
let child_green = format!("{kind}Green");
params.extend(quote! {$name: $(&child_green),});
body.extend(quote! {
pub fn $name(&self, db: &dyn SyntaxGroup) -> $kind {
$kind::from_syntax_node(db, self.children[$i].clone())
}
});
args_for_missing.extend(quote! {$kind::missing(db).0,});
if *key {
ptr_getters.extend(quote! {
pub fn $(&key_name_green)(self, db: &dyn SyntaxGroup) -> $(&child_green) {
let ptr = self.0.lookup_intern(db);
if let SyntaxStablePtr::Child { key_fields, .. } = ptr {
$(&child_green)(key_fields[$key_field_index])
} else {
panic!("Unexpected key field query on root.");
}
}
});
key_field_index += 1;
}
}
let ptr_name = format!("{name}Ptr");
let new_green_impl = if is_terminal {
let token_name = name.replace("Terminal", "Token");
quote! {
impl Terminal for $(&name) {
const KIND: SyntaxKind = SyntaxKind::$(&name);
type TokenType = $(&token_name);
fn new_green(
db: &dyn SyntaxGroup,
leading_trivia: TriviaGreen,
token: <<$(&name) as Terminal>::TokenType as TypedSyntaxNode>::Green,
trailing_trivia: TriviaGreen
) -> Self::Green {
let children: Vec<GreenId> = vec![$args];
let width = children.iter().copied().map(|id|
id.lookup_intern(db).width()).sum();
$(&green_name)(Arc::new(GreenNode {
kind: SyntaxKind::$(&name),
details: GreenNodeDetails::Node { children, width },
}).intern(db))
}
fn text(&self, db: &dyn SyntaxGroup) -> SmolStr {
self.token(db).text(db)
}
}
}
} else {
quote! {
impl $(&name) {
$field_indices
pub fn new_green(db: &dyn SyntaxGroup, $params) -> $(&green_name) {
let children: Vec<GreenId> = vec![$args];
let width = children.iter().copied().map(|id|
id.lookup_intern(db).width()).sum();
$(&green_name)(Arc::new(GreenNode {
kind: SyntaxKind::$(&name),
details: GreenNodeDetails::Node { children, width },
}).intern(db))
}
}
}
};
quote! {
#[derive(Clone, Debug, Eq, Hash, PartialEq)]
pub struct $(&name) {
node: SyntaxNode,
children: Arc<[SyntaxNode]>,
}
$new_green_impl
impl $(&name) {
$body
}
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub struct $(&ptr_name)(pub SyntaxStablePtrId);
impl $(&ptr_name) {
$ptr_getters
}
impl TypedStablePtr for $(&ptr_name) {
type SyntaxNode = $(&name);
fn untyped(&self) -> SyntaxStablePtrId {
self.0
}
fn lookup(&self, db: &dyn SyntaxGroup) -> $(&name) {
$(&name)::from_syntax_node(db, self.0.lookup(db))
}
}
impl From<$(&ptr_name)> for SyntaxStablePtrId {
fn from(ptr: $(&ptr_name)) -> Self {
ptr.untyped()
}
}
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub struct $(&green_name)(pub GreenId);
impl TypedSyntaxNode for $(&name) {
const OPTIONAL_KIND: Option<SyntaxKind> = Some(SyntaxKind::$(&name));
type StablePtr = $(&ptr_name);
type Green = $(&green_name);
fn missing(db: &dyn SyntaxGroup) -> Self::Green {
$(&green_name)(Arc::new(GreenNode {
kind: SyntaxKind::$(&name),
details: GreenNodeDetails::Node {
children: vec![$args_for_missing],
width: TextWidth::default(),
},
}).intern(db))
}
fn from_syntax_node(db: &dyn SyntaxGroup, node: SyntaxNode) -> Self {
let kind = node.kind(db);
assert_eq!(kind, SyntaxKind::$(&name), "Unexpected SyntaxKind {:?}. Expected {:?}.", kind, SyntaxKind::$(&name));
let children = db.get_children(node.clone());
Self { node, children }
}
fn as_syntax_node(&self) -> SyntaxNode {
self.node.clone()
}
fn stable_ptr(&self) -> Self::StablePtr {
$(&ptr_name)(self.node.0.stable_ptr)
}
}
impl From<&$(&name)> for SyntaxStablePtrId {
fn from(node: &$(&name)) -> Self {
node.stable_ptr().untyped()
}
}
}
}