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Owned AST IR

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This commit is contained in:
Aleksey Kladov 2020-07-29 11:48:32 +02:00
parent 04d2b7b256
commit 627eddbc7e
2 changed files with 1990 additions and 1981 deletions
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3942
xtask/src/ast_src.rs
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File diff suppressed because it is too large Load diff

29
xtask/src/codegen/gen_syntax.rs
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@ -9,28 +9,29 @@ use proc_macro2::{Punct, Spacing};
use quote::{format_ident, quote};
use crate::{
ast_src::{AstSrc, Field, FieldSrc, KindsSrc, AST_SRC, KINDS_SRC},
ast_src::{rust_ast, AstSrc, Field, FieldSrc, KindsSrc, KINDS_SRC},
codegen::{self, update, Mode},
project_root, Result,
};
pub fn generate_syntax(mode: Mode) -> Result<()> {
let ast = rust_ast();
let syntax_kinds_file = project_root().join(codegen::SYNTAX_KINDS);
let syntax_kinds = generate_syntax_kinds(KINDS_SRC)?;
update(syntax_kinds_file.as_path(), &syntax_kinds, mode)?;
let ast_tokens_file = project_root().join(codegen::AST_TOKENS);
let contents = generate_tokens(AST_SRC)?;
let contents = generate_tokens(&ast)?;
update(ast_tokens_file.as_path(), &contents, mode)?;
let ast_nodes_file = project_root().join(codegen::AST_NODES);
let contents = generate_nodes(KINDS_SRC, AST_SRC)?;
let contents = generate_nodes(KINDS_SRC, &ast)?;
update(ast_nodes_file.as_path(), &contents, mode)?;
Ok(())
}
fn generate_tokens(grammar: AstSrc<'_>) -> Result<String> {
fn generate_tokens(grammar: &AstSrc) -> Result<String> {
let tokens = grammar.tokens.iter().map(|token| {
let name = format_ident!("{}", token);
let kind = format_ident!("{}", to_upper_snake_case(token));
@ -62,13 +63,13 @@ fn generate_tokens(grammar: AstSrc<'_>) -> Result<String> {
Ok(pretty)
}
fn generate_nodes(kinds: KindsSrc<'_>, grammar: AstSrc<'_>) -> Result<String> {
fn generate_nodes(kinds: KindsSrc<'_>, grammar: &AstSrc) -> Result<String> {
let (node_defs, node_boilerplate_impls): (Vec<_>, Vec<_>) = grammar
.nodes
.iter()
.map(|node| {
let name = format_ident!("{}", node.name);
let kind = format_ident!("{}", to_upper_snake_case(node.name));
let kind = format_ident!("{}", to_upper_snake_case(&node.name));
let traits = node.traits.iter().map(|trait_name| {
let trait_name = format_ident!("{}", trait_name);
quote!(impl ast::#trait_name for #name {})
@ -192,8 +193,8 @@ fn generate_nodes(kinds: KindsSrc<'_>, grammar: AstSrc<'_>) -> Result<String> {
})
.unzip();
let enum_names = grammar.enums.iter().map(|it| it.name);
let node_names = grammar.nodes.iter().map(|it| it.name);
let enum_names = grammar.enums.iter().map(|it| &it.name);
let node_names = grammar.nodes.iter().map(|it| &it.name);
let display_impls =
enum_names.chain(node_names.clone()).map(|it| format_ident!("{}", it)).map(|name| {
@ -212,7 +213,7 @@ fn generate_nodes(kinds: KindsSrc<'_>, grammar: AstSrc<'_>) -> Result<String> {
.nodes
.iter()
.map(|kind| to_pascal_case(kind))
.filter(|name| !defined_nodes.contains(name.as_str()))
.filter(|name| !defined_nodes.iter().any(|&it| it == name))
{
eprintln!("Warning: node {} not defined in ast source", node);
}
@ -236,12 +237,12 @@ fn generate_nodes(kinds: KindsSrc<'_>, grammar: AstSrc<'_>) -> Result<String> {
let mut res = String::with_capacity(ast.len() * 2);
let mut docs =
grammar.nodes.iter().map(|it| it.doc).chain(grammar.enums.iter().map(|it| it.doc));
grammar.nodes.iter().map(|it| &it.doc).chain(grammar.enums.iter().map(|it| &it.doc));
for chunk in ast.split("# [ pretty_doc_comment_placeholder_workaround ]") {
res.push_str(chunk);
if let Some(doc) = docs.next() {
write_doc_comment(doc, &mut res);
write_doc_comment(&doc, &mut res);
}
}
@ -249,7 +250,7 @@ fn generate_nodes(kinds: KindsSrc<'_>, grammar: AstSrc<'_>) -> Result<String> {
Ok(pretty)
}
fn write_doc_comment(contents: &[&str], dest: &mut String) {
fn write_doc_comment(contents: &[String], dest: &mut String) {
for line in contents {
writeln!(dest, "///{}", line).unwrap();
}
@ -413,7 +414,7 @@ fn to_pascal_case(s: &str) -> String {
buf
}
impl Field<'_> {
impl Field {
fn is_many(&self) -> bool {
matches!(self, Field::Node { src: FieldSrc::Many(_), .. })
}
@ -429,7 +430,7 @@ impl Field<'_> {
fn method_name(&self) -> proc_macro2::Ident {
match self {
Field::Token(name) => {
let name = match *name {
let name = match name.as_str() {
";" => "semicolon",
"->" => "thin_arrow",
"'{'" => "l_curly",