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"syn",
|
||||||
|
"version_check",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "proc-macro-error-attr"
|
||||||
|
version = "1.0.4"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"version_check",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "proc-macro2"
|
||||||
|
version = "1.0.24"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
|
||||||
|
dependencies = [
|
||||||
|
"unicode-xid",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "quote"
|
||||||
|
version = "1.0.8"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "991431c3519a3f36861882da93630ce66b52918dcf1b8e2fd66b397fc96f28df"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "redox_syscall"
|
||||||
|
version = "0.1.57"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "regalloc"
|
||||||
|
version = "0.0.31"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "571f7f397d61c4755285cd37853fe8e03271c243424a907415909379659381c5"
|
||||||
|
dependencies = [
|
||||||
|
"log",
|
||||||
|
"rustc-hash",
|
||||||
|
"smallvec",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "rustc-hash"
|
||||||
|
version = "1.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "scopeguard"
|
||||||
|
version = "1.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "smallvec"
|
||||||
|
version = "1.6.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "strsim"
|
||||||
|
version = "0.8.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "structopt"
|
||||||
|
version = "0.3.21"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5277acd7ee46e63e5168a80734c9f6ee81b1367a7d8772a2d765df2a3705d28c"
|
||||||
|
dependencies = [
|
||||||
|
"clap",
|
||||||
|
"lazy_static",
|
||||||
|
"structopt-derive",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "structopt-derive"
|
||||||
|
version = "0.4.14"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5ba9cdfda491b814720b6b06e0cac513d922fc407582032e8706e9f137976f90"
|
||||||
|
dependencies = [
|
||||||
|
"heck",
|
||||||
|
"proc-macro-error",
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"syn",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "syn"
|
||||||
|
version = "1.0.59"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "07cb8b1b4ebf86a89ee88cbd201b022b94138c623644d035185c84d3f41b7e66"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"unicode-xid",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "target-lexicon"
|
||||||
|
version = "0.11.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "4ee5a98e506fb7231a304c3a1bd7c132a55016cf65001e0282480665870dfcb9"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "textwrap"
|
||||||
|
version = "0.11.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
|
||||||
|
dependencies = [
|
||||||
|
"unicode-width",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "thiserror"
|
||||||
|
version = "1.0.23"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "76cc616c6abf8c8928e2fdcc0dbfab37175edd8fb49a4641066ad1364fdab146"
|
||||||
|
dependencies = [
|
||||||
|
"thiserror-impl",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "thiserror-impl"
|
||||||
|
version = "1.0.23"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9be73a2caec27583d0046ef3796c3794f868a5bc813db689eed00c7631275cd1"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"syn",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "unicode-segmentation"
|
||||||
|
version = "1.7.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "bb0d2e7be6ae3a5fa87eed5fb451aff96f2573d2694942e40543ae0bbe19c796"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "unicode-width"
|
||||||
|
version = "0.1.8"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "unicode-xid"
|
||||||
|
version = "0.2.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "vec_map"
|
||||||
|
version = "0.8.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "version_check"
|
||||||
|
version = "0.9.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi"
|
||||||
|
version = "0.3.9"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||||
|
dependencies = [
|
||||||
|
"winapi-i686-pc-windows-gnu",
|
||||||
|
"winapi-x86_64-pc-windows-gnu",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi-i686-pc-windows-gnu"
|
||||||
|
version = "0.4.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi-x86_64-pc-windows-gnu"
|
||||||
|
version = "0.4.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||||
|
|
|
||||||
11
Cargo.toml
11
Cargo.toml
|
|
@ -4,6 +4,13 @@ version = "0.1.0"
|
||||||
authors = ["Michael Zhang <mail@mzhang.io>"]
|
authors = ["Michael Zhang <mail@mzhang.io>"]
|
||||||
edition = "2018"
|
edition = "2018"
|
||||||
|
|
||||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
|
||||||
|
|
||||||
[dependencies]
|
[dependencies]
|
||||||
|
anyhow = "1.0.38"
|
||||||
|
cranelift = "0.69.0"
|
||||||
|
cranelift-module = "0.69.0"
|
||||||
|
cranelift-object = "0.69.0"
|
||||||
|
lazy_static = "1.4.0"
|
||||||
|
parking_lot = "0.11.1"
|
||||||
|
peg = "0.6.3"
|
||||||
|
structopt = "0.3.21"
|
||||||
|
target-lexicon = "0.11.1"
|
||||||
|
|
|
||||||
7
example
Normal file
7
example
Normal file
|
|
@ -0,0 +1,7 @@
|
||||||
|
fn main
|
||||||
|
{
|
||||||
|
urmom();
|
||||||
|
5
|
||||||
|
}
|
||||||
|
|
||||||
|
fn urmom { 12 }
|
||||||
89
src/ast.rs
89
src/ast.rs
|
|
@ -1,80 +1,41 @@
|
||||||
use std::collections::HashMap;
|
#[derive(Debug)]
|
||||||
|
pub struct Program {
|
||||||
#[derive(Debug, Hash, PartialEq, Eq)]
|
pub decls: Vec<Decl>,
|
||||||
pub struct Id(pub u32);
|
}
|
||||||
|
|
||||||
#[derive(Debug)]
|
#[derive(Debug)]
|
||||||
pub enum Decl {
|
pub enum Decl {
|
||||||
Iface(Iface),
|
|
||||||
Impl(Impl),
|
|
||||||
Struct(Struct),
|
|
||||||
Enum(Enum),
|
|
||||||
Func(Func),
|
Func(Func),
|
||||||
}
|
}
|
||||||
|
|
||||||
#[derive(Debug)]
|
|
||||||
pub struct Iface {
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
#[derive(Debug)]
|
|
||||||
pub struct Impl {
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
#[derive(Debug)]
|
|
||||||
pub struct Struct {
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
#[derive(Debug)]
|
|
||||||
pub struct Enum {
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
#[derive(Debug)]
|
#[derive(Debug)]
|
||||||
pub struct Func {
|
pub struct Func {
|
||||||
|
pub name: Ident,
|
||||||
|
pub body: Expr,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub enum Stmt {
|
||||||
|
Expr(Expr),
|
||||||
|
Return(Expr),
|
||||||
}
|
}
|
||||||
|
|
||||||
#[derive(Debug)]
|
#[derive(Debug)]
|
||||||
pub enum Expr {
|
pub enum Expr {
|
||||||
|
Seq(Vec<Stmt>, Box<Expr>),
|
||||||
|
FuncCall(Ident),
|
||||||
|
Lit(Lit),
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub enum Lit {
|
||||||
|
Int(i64),
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub enum Type {
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
#[derive(Default, Debug)]
|
#[derive(Clone, Debug, Hash, PartialEq, Eq)]
|
||||||
pub struct TypeChecker<'a> {
|
pub struct Ident(pub String);
|
||||||
gen: u32,
|
|
||||||
enums: HashMap<u32, &'a Enum>,
|
|
||||||
funcs: HashMap<u32, &'a Func>,
|
|
||||||
}
|
|
||||||
|
|
||||||
impl<'a> TypeChecker<'a> {
|
|
||||||
pub fn new() -> Self {
|
|
||||||
Self::default()
|
|
||||||
}
|
|
||||||
|
|
||||||
fn new_id(&mut self) -> u32 {
|
|
||||||
let id = self.gen;
|
|
||||||
self.gen += 1;
|
|
||||||
id
|
|
||||||
}
|
|
||||||
|
|
||||||
pub fn process(&mut self, decls: &'a [Decl]) {
|
|
||||||
for decl in decls.iter() {
|
|
||||||
match decl {
|
|
||||||
Decl::Enum(v) => {
|
|
||||||
let id = self.new_id();
|
|
||||||
self.enums.insert(id, v);
|
|
||||||
}
|
|
||||||
Decl::Func(v) => {
|
|
||||||
let id = self.new_id();
|
|
||||||
self.funcs.insert(id, v);
|
|
||||||
}
|
|
||||||
_ => {}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
println!("self: {:?}", self);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
|
||||||
46
src/codegen.rs
Normal file
46
src/codegen.rs
Normal file
|
|
@ -0,0 +1,46 @@
|
||||||
|
use anyhow::Result;
|
||||||
|
use cranelift::prelude::*;
|
||||||
|
use cranelift_module::{Linkage, Module};
|
||||||
|
|
||||||
|
use super::{Decl, Program};
|
||||||
|
|
||||||
|
impl Program {
|
||||||
|
pub fn codegen(&self, mut module: impl Module) -> Result<()> {
|
||||||
|
let mut ctx = module.make_context();
|
||||||
|
|
||||||
|
for decl in self.decls.iter() {
|
||||||
|
match decl {
|
||||||
|
Decl::Func(func) => {
|
||||||
|
let mut builder_ctx = FunctionBuilderContext::new();
|
||||||
|
let mut builder = FunctionBuilder::new(&mut ctx.func, &mut builder_ctx);
|
||||||
|
let entry_block = builder.create_block();
|
||||||
|
builder.append_block_params_for_function_params(entry_block);
|
||||||
|
builder.switch_to_block(entry_block);
|
||||||
|
builder.seal_block(entry_block);
|
||||||
|
|
||||||
|
let int = module.target_config().pointer_type();
|
||||||
|
let val = builder.ins().iconst(int, 12345);
|
||||||
|
builder.ins().return_(&[val]);
|
||||||
|
|
||||||
|
builder.finalize();
|
||||||
|
ctx.func.signature.returns.push(AbiParam::new(int));
|
||||||
|
|
||||||
|
let func_id = module.declare_function(
|
||||||
|
&func.name,
|
||||||
|
Linkage::Export,
|
||||||
|
&ctx.func.signature,
|
||||||
|
)?;
|
||||||
|
module.define_function(
|
||||||
|
func_id,
|
||||||
|
&mut ctx,
|
||||||
|
&mut codegen::binemit::NullTrapSink {},
|
||||||
|
)?;
|
||||||
|
module.clear_context(&mut ctx);
|
||||||
|
}
|
||||||
|
_ => {}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
}
|
||||||
33
src/hir.rs
33
src/hir.rs
|
|
@ -1 +1,34 @@
|
||||||
|
use std::collections::HashMap;
|
||||||
|
|
||||||
|
use crate::ast::{Program, Decl, Func, Type, Ident};
|
||||||
|
use crate::utils::Id;
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub struct Namespaces {
|
||||||
|
funcs: HashMap<Id, Func>,
|
||||||
|
types: HashMap<Id, Type>,
|
||||||
|
|
||||||
|
func_names: HashMap<Ident, Id>,
|
||||||
|
type_names: HashMap<Ident, Id>,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Namespaces {
|
||||||
|
pub fn create(program: Program) -> Self {
|
||||||
|
let mut funcs = HashMap::new();
|
||||||
|
let mut types = HashMap::new();
|
||||||
|
let mut func_names = HashMap::new();
|
||||||
|
let mut type_names = HashMap::new();
|
||||||
|
|
||||||
|
for decl in program.decls {
|
||||||
|
match decl {
|
||||||
|
Decl::Func(func) => {
|
||||||
|
let id = Id::default();
|
||||||
|
func_names.insert(func.name.clone(), id);
|
||||||
|
funcs.insert(id, func);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Namespaces { funcs, types, func_names, type_names }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
|
||||||
69
src/main.rs
69
src/main.rs
|
|
@ -1,13 +1,68 @@
|
||||||
mod ast;
|
mod ast;
|
||||||
|
mod parser;
|
||||||
mod hir;
|
mod hir;
|
||||||
|
mod utils;
|
||||||
|
|
||||||
fn main() {
|
use std::fs::{File, OpenOptions};
|
||||||
let ast = vec![
|
use std::io::{Read, Write};
|
||||||
ast::Decl::Enum(ast::Enum { }),
|
use std::path::PathBuf;
|
||||||
];
|
|
||||||
|
|
||||||
let mut tc = ast::TypeChecker::new();
|
use anyhow::Result;
|
||||||
tc.process(&ast);
|
use cranelift::prelude::*;
|
||||||
|
use structopt::StructOpt;
|
||||||
|
|
||||||
println!("Hello, world!");
|
use crate::hir::Namespaces;
|
||||||
|
|
||||||
|
#[derive(StructOpt)]
|
||||||
|
struct Opt {
|
||||||
|
file: PathBuf,
|
||||||
|
#[structopt(name = "out", short = "o", default_value = "a.out")]
|
||||||
|
out: PathBuf,
|
||||||
|
}
|
||||||
|
|
||||||
|
fn main() -> Result<()> {
|
||||||
|
let opt = Opt::from_args();
|
||||||
|
|
||||||
|
let contents = {
|
||||||
|
let mut file = File::open(&opt.file)?;
|
||||||
|
let mut contents = String::new();
|
||||||
|
file.read_to_string(&mut contents)?;
|
||||||
|
contents
|
||||||
|
};
|
||||||
|
|
||||||
|
let parsed = parser::program(&contents)?;
|
||||||
|
println!("parsed: {:?}", parsed);
|
||||||
|
|
||||||
|
let namespaces = Namespaces::create(parsed);
|
||||||
|
println!("namespaces: {:?}", namespaces);
|
||||||
|
|
||||||
|
let isa = {
|
||||||
|
use std::str::FromStr;
|
||||||
|
use target_lexicon::triple;
|
||||||
|
let builder = settings::builder();
|
||||||
|
let flags = settings::Flags::new(builder);
|
||||||
|
isa::lookup(triple!("x86_64-unknown-linux-gnu"))?.finish(flags)
|
||||||
|
};
|
||||||
|
use cranelift_object::{ObjectBuilder, ObjectModule};
|
||||||
|
let libcall_names = cranelift_module::default_libcall_names();
|
||||||
|
let builder = ObjectBuilder::new(isa, "OSU", libcall_names)?;
|
||||||
|
let mut module = ObjectModule::new(builder);
|
||||||
|
|
||||||
|
// parsed.codegen(&mut module)?;
|
||||||
|
|
||||||
|
let product = module.finish();
|
||||||
|
let out = product.emit()?;
|
||||||
|
{
|
||||||
|
let mut open_opt = OpenOptions::new();
|
||||||
|
#[cfg(target_os = "linux")]
|
||||||
|
{
|
||||||
|
use std::os::unix::fs::OpenOptionsExt;
|
||||||
|
// open_opt.mode(0o755);
|
||||||
|
}
|
||||||
|
open_opt.create(true).write(true);
|
||||||
|
let mut file = open_opt.open(&opt.out)?;
|
||||||
|
file.write_all(&out)?;
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(())
|
||||||
}
|
}
|
||||||
|
|
|
||||||
50
src/parser.rs
Normal file
50
src/parser.rs
Normal file
|
|
@ -0,0 +1,50 @@
|
||||||
|
use crate::ast::*;
|
||||||
|
|
||||||
|
peg::parser! {
|
||||||
|
grammar parser() for str {
|
||||||
|
pub rule program() -> Program
|
||||||
|
= decls:decls() _? ![_] { Program { decls } }
|
||||||
|
|
||||||
|
rule decls() -> Vec<Decl>
|
||||||
|
= hd:decl() _? tl:decls() { let mut tl = tl; tl.insert(0, hd); tl }
|
||||||
|
/ { vec![] }
|
||||||
|
|
||||||
|
rule decl() -> Decl
|
||||||
|
= d:func() { Decl::Func(d) }
|
||||||
|
|
||||||
|
rule func() -> Func
|
||||||
|
= "fn" _ name:ident() _? "{" _? body:expr() _? "}" { Func { name, body } }
|
||||||
|
/ "fn" _ name:ident() _? body:blockexpr() { Func { name, body } }
|
||||||
|
|
||||||
|
rule stmts() -> Vec<Stmt>
|
||||||
|
= hd:stmt() _? tl:stmts() { let mut tl = tl; tl.insert(0, hd); tl }
|
||||||
|
/ { vec![] }
|
||||||
|
|
||||||
|
rule stmt() -> Stmt
|
||||||
|
= "return" _ v:expr() _? ";" { Stmt::Return(v) }
|
||||||
|
/ v:expr() _? ";" { Stmt::Expr(v) }
|
||||||
|
|
||||||
|
rule blockexpr() -> Expr
|
||||||
|
= "{" _? s:stmts() _? e:expr() "}" { Expr::Seq(s, Box::new(e)) }
|
||||||
|
|
||||||
|
rule expr() -> Expr
|
||||||
|
= blockexpr()
|
||||||
|
/ func:ident() _? "(" _? ")" { Expr::FuncCall(func) }
|
||||||
|
/ v:lit() { Expr::Lit(v) }
|
||||||
|
|
||||||
|
rule lit() -> Lit
|
||||||
|
= v:int() { Lit::Int(v) }
|
||||||
|
|
||||||
|
rule int() -> i64
|
||||||
|
= s:$(['0'..='9']+) { s.parse::<i64>().unwrap() }
|
||||||
|
|
||||||
|
rule ident() -> Ident
|
||||||
|
= s:$([ 'a'..='z' | 'A'..='Z'] ['a'..='z' | 'A'..='Z' | '0'..='9' ]*) { Ident(s.to_string()) }
|
||||||
|
/ s:$("_" ['a'..='z' | 'A'..='Z' | '0'..='9' ]+) { Ident(s.to_string()) }
|
||||||
|
/ expected!("identifier")
|
||||||
|
|
||||||
|
rule _() = [' ' | '\n' | '\t']+
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub use self::parser::*;
|
||||||
25
src/utils.rs
Normal file
25
src/utils.rs
Normal file
|
|
@ -0,0 +1,25 @@
|
||||||
|
use std::sync::Arc;
|
||||||
|
|
||||||
|
use parking_lot::Mutex;
|
||||||
|
|
||||||
|
use lazy_static::lazy_static;
|
||||||
|
|
||||||
|
lazy_static! {
|
||||||
|
static ref N: Arc<Mutex<usize>> = Arc::new(Mutex::new(0));
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
|
||||||
|
pub struct Id(usize);
|
||||||
|
|
||||||
|
impl Default for Id {
|
||||||
|
fn default() -> Self {
|
||||||
|
Id(gen_int())
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn gen_int() -> usize {
|
||||||
|
let mut n = N.lock();
|
||||||
|
let res = *n;
|
||||||
|
*n += 1;
|
||||||
|
res
|
||||||
|
}
|
||||||
Loading…
Reference in a new issue