Clean out, start sl JIT project (no jit yet)
This commit is contained in:
902
sl/Cargo.lock
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902
sl/Cargo.lock
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checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
|
||||
dependencies = [
|
||||
"windows-targets",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-targets"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm",
|
||||
"windows_aarch64_msvc",
|
||||
"windows_i686_gnu",
|
||||
"windows_i686_msvc",
|
||||
"windows_x86_64_gnu",
|
||||
"windows_x86_64_gnullvm",
|
||||
"windows_x86_64_msvc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
|
||||
|
||||
[[package]]
|
||||
name = "zerocopy"
|
||||
version = "0.7.26"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e97e415490559a91254a2979b4829267a57d2fcd741a98eee8b722fb57289aa0"
|
||||
dependencies = [
|
||||
"zerocopy-derive",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerocopy-derive"
|
||||
version = "0.7.26"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dd7e48ccf166952882ca8bd778a43502c64f33bf94c12ebe2a7f08e5a0f6689f"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
22
sl/Cargo.toml
Normal file
22
sl/Cargo.toml
Normal file
@@ -0,0 +1,22 @@
|
||||
[package]
|
||||
name = "sl"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[profile.bench]
|
||||
debug = true
|
||||
|
||||
[dependencies]
|
||||
lalrpop-util = {version="0.20", features=["lexer"]}
|
||||
regex = "1"
|
||||
once_cell = "1"
|
||||
anyhow = "1"
|
||||
cranelift = "0.101.4"
|
||||
cranelift-module = "0.101.4"
|
||||
cranelift-jit = "0.101.4"
|
||||
cranelift-native = "0.101.4"
|
||||
|
||||
[build-dependencies]
|
||||
lalrpop = "0.20"
|
||||
5
sl/build.rs
Normal file
5
sl/build.rs
Normal file
@@ -0,0 +1,5 @@
|
||||
extern crate lalrpop;
|
||||
|
||||
fn main() {
|
||||
lalrpop::process_root().unwrap();
|
||||
}
|
||||
31
sl/src/grammar.lalrpop
Normal file
31
sl/src/grammar.lalrpop
Normal file
@@ -0,0 +1,31 @@
|
||||
use std::str::FromStr;
|
||||
use std::rc::Rc;
|
||||
use sl::Form;
|
||||
|
||||
grammar;
|
||||
|
||||
pub Term: Rc<Form> = {
|
||||
NUM => Rc::new(Form::Int(i32::from_str(<>).unwrap())),
|
||||
SYM => Rc::new(Form::Symbol(<>.to_owned())),
|
||||
"(" <ListInside?> ")" => <>.unwrap_or(Rc::new(Form::Nil)),
|
||||
"'" <Term> => Rc::new(Form::Pair(Rc::new(Form::Symbol("quote".to_owned())), Rc::new(Form::Pair(<>, Rc::new(Form::Nil))))),
|
||||
"!" <h: Term> <t: Term> => {
|
||||
h.append(t).unwrap()
|
||||
},
|
||||
};
|
||||
ListInside: Rc<Form> = {
|
||||
<Term> => Rc::new(Form::Pair(<>, Rc::new(Form::Nil))),
|
||||
<h: Term> <t: ListInside> => Rc::new(Form::Pair(h, t)),
|
||||
<a: Term> "." <d: Term> => Rc::new(Form::Pair(a, d)),
|
||||
}
|
||||
match {
|
||||
"(",
|
||||
")",
|
||||
".",
|
||||
"'",
|
||||
"!",
|
||||
r"[0-9]+" => NUM,
|
||||
r"[a-zA-Z+*/_=?%&|^<>-][\w+*/=_?%&|^<>-]*" => SYM,
|
||||
r"(;[^\n]*\n)|\s+" => { }
|
||||
}
|
||||
|
||||
186
sl/src/lib.rs
Normal file
186
sl/src/lib.rs
Normal file
@@ -0,0 +1,186 @@
|
||||
use std::rc::Rc;
|
||||
use std::collections::BTreeMap;
|
||||
use std::fmt;
|
||||
|
||||
use anyhow::{anyhow,Result};
|
||||
|
||||
#[derive(Debug, Eq, PartialEq)]
|
||||
pub enum Form {
|
||||
Nil,
|
||||
Int(i32),
|
||||
Bool(bool),
|
||||
Symbol(String),
|
||||
Pair(Rc<Form>,Rc<Form>),
|
||||
Prim(Prim),
|
||||
}
|
||||
|
||||
#[derive(Debug, Eq, PartialEq, Clone, Copy)]
|
||||
pub enum Prim {
|
||||
Add,
|
||||
Mul,
|
||||
Eq,
|
||||
}
|
||||
|
||||
impl Form {
|
||||
fn new_nil() -> Rc<Form> {
|
||||
Rc::new(Form::Nil)
|
||||
}
|
||||
fn new_int(i: i32) -> Rc<Form> {
|
||||
Rc::new(Form::Int(i))
|
||||
}
|
||||
fn new_bool(b: bool) -> Rc<Form> {
|
||||
Rc::new(Form::Bool(b))
|
||||
}
|
||||
fn truthy(&self) -> bool {
|
||||
match self {
|
||||
Form::Bool(b) => *b,
|
||||
Form::Nil => false,
|
||||
_ => true,
|
||||
}
|
||||
}
|
||||
fn int(&self) -> Result<i32> {
|
||||
match self {
|
||||
Form::Int(i) => Ok(*i),
|
||||
_ => Err(anyhow!("int on not a int")),
|
||||
}
|
||||
}
|
||||
fn prim(&self) -> Result<Prim> {
|
||||
match self {
|
||||
Form::Prim(p) => Ok(*p),
|
||||
_ => Err(anyhow!("prim on not a prim")),
|
||||
}
|
||||
}
|
||||
fn sym(&self) -> Result<&str> {
|
||||
match self {
|
||||
Form::Symbol(s) => Ok(s),
|
||||
_ => Err(anyhow!("sym on not a sym")),
|
||||
}
|
||||
}
|
||||
fn pair(&self) -> Result<(Rc<Form>,Rc<Form>)> {
|
||||
match self {
|
||||
Form::Pair(car, cdr) => Ok((Rc::clone(car),Rc::clone(cdr))),
|
||||
_ => Err(anyhow!("pair on not a pair")),
|
||||
}
|
||||
}
|
||||
fn car(&self) -> Result<Rc<Form>> {
|
||||
match self {
|
||||
Form::Pair(car, _cdr) => Ok(Rc::clone(car)),
|
||||
_ => Err(anyhow!("car on not a pair")),
|
||||
}
|
||||
}
|
||||
fn cdr(&self) -> Result<Rc<Form>> {
|
||||
match self {
|
||||
Form::Pair(_car, cdr) => Ok(Rc::clone(cdr)),
|
||||
_ => Err(anyhow!("cdr on not a pair")),
|
||||
}
|
||||
}
|
||||
fn is_nil(&self) -> bool {
|
||||
match self {
|
||||
Form::Nil => true,
|
||||
_ => false,
|
||||
}
|
||||
}
|
||||
pub fn append(&self, x: Rc<Form>) -> Result<Rc<Form>> {
|
||||
match self {
|
||||
Form::Pair(car, cdr) => cdr.append(x).map(|x| Rc::new(Form::Pair(Rc::clone(car), x))),
|
||||
Form::Nil => Ok(Rc::new(Form::Pair(x, Rc::new(Form::Nil)))),
|
||||
_ => Err(anyhow!("append to not a pair")),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Env {
|
||||
m: BTreeMap<String, Rc<Form>>
|
||||
}
|
||||
impl Env {
|
||||
pub fn root_env() -> Env {
|
||||
Env {
|
||||
m: [
|
||||
("+", Rc::new(Form::Prim(Prim::Add))),
|
||||
("*", Rc::new(Form::Prim(Prim::Mul))),
|
||||
("=", Rc::new(Form::Prim(Prim::Eq))),
|
||||
].into_iter().map(|(s,p)| (s.to_owned(), p)).collect()
|
||||
}
|
||||
}
|
||||
pub fn lookup(&self, s: &str) -> Result<Rc<Form>> {
|
||||
Ok(Rc::clone(self.m.get(s).ok_or(anyhow!("lookup failed"))?))
|
||||
}
|
||||
}
|
||||
|
||||
pub fn tree_walker_eval(f: Rc<Form>, e: &mut Env) -> Result<Rc<Form>> {
|
||||
Ok(match &*f {
|
||||
Form::Symbol(s) => e.lookup(s)?,
|
||||
Form::Pair(car, cdr) => {
|
||||
match &**car {
|
||||
Form::Symbol(s) if s == "if" => {
|
||||
if tree_walker_eval(cdr.car()?, e)?.truthy() {
|
||||
tree_walker_eval(cdr.cdr()?.car()?, e)?
|
||||
} else {
|
||||
tree_walker_eval(cdr.cdr()?.cdr()?.car()?, e)?
|
||||
}
|
||||
|
||||
}
|
||||
_ => {
|
||||
let comb = tree_walker_eval(Rc::clone(car), e)?;
|
||||
let a = tree_walker_eval(cdr.car()?, e)?;
|
||||
let b = tree_walker_eval(cdr.cdr()?.car()?, e)?;
|
||||
match comb.prim().unwrap() {
|
||||
Prim::Add => Form::new_int(a.int()? + b.int()?),
|
||||
Prim::Mul => Form::new_int(a.int()? * b.int()?),
|
||||
Prim::Eq => Form::new_bool(a == b),
|
||||
}
|
||||
}
|
||||
}
|
||||
},
|
||||
_ => f
|
||||
})
|
||||
}
|
||||
|
||||
// todo, strings not symbols?
|
||||
impl From<String> for Form { fn from(item: String) -> Self { Form::Symbol(item) } }
|
||||
impl From<&str> for Form { fn from(item: &str) -> Self { Form::Symbol(item.to_owned()) } }
|
||||
impl From<i32> for Form { fn from(item: i32) -> Self { Form::Int(item) } }
|
||||
impl From<bool> for Form { fn from(item: bool) -> Self { Form::Bool(item) } }
|
||||
impl<A: Into<Form>, B: Into<Form>> From<(A, B)> for Form {
|
||||
fn from(item: (A, B)) -> Self {
|
||||
Form::Pair(Rc::new(item.0.into()), Rc::new(item.1.into()))
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for Form {
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||
match self {
|
||||
Form::Nil => write!(f, "nil"),
|
||||
Form::Int(i) => write!(f, "{i}"),
|
||||
Form::Bool(b) => write!(f, "{b}"),
|
||||
Form::Symbol(s) => write!(f, "'{s}"),
|
||||
Form::Pair(car, cdr) => {
|
||||
write!(f, "({}", car)?;
|
||||
let mut traverse: Rc<Form> = Rc::clone(cdr);
|
||||
loop {
|
||||
match &*traverse {
|
||||
Form::Pair(ref carp, ref cdrp) => {
|
||||
write!(f, " {}", carp)?;
|
||||
traverse = Rc::clone(cdrp);
|
||||
},
|
||||
Form::Nil => {
|
||||
write!(f, ")")?;
|
||||
return Ok(());
|
||||
},
|
||||
x => {
|
||||
write!(f, ". {x})")?;
|
||||
return Ok(());
|
||||
},
|
||||
}
|
||||
}
|
||||
},
|
||||
Form::Prim(p) => {
|
||||
match p {
|
||||
Prim::Add => write!(f, "+"),
|
||||
Prim::Mul => write!(f, "*"),
|
||||
Prim::Eq => write!(f, "="),
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
18
sl/src/main.rs
Normal file
18
sl/src/main.rs
Normal file
@@ -0,0 +1,18 @@
|
||||
#[macro_use] extern crate lalrpop_util;
|
||||
lalrpop_mod!(pub grammar);
|
||||
|
||||
use std::rc::Rc;
|
||||
use anyhow::Result;
|
||||
|
||||
use sl::{tree_walker_eval, Env};
|
||||
|
||||
fn main() -> Result<()> {
|
||||
let input = "(if (= 1 2) (+ 2 3) (* 2 2))";
|
||||
let parsed_input = Rc::new(grammar::TermParser::new().parse(input)?);
|
||||
//println!("Hello, world: {parsed_input:?}");
|
||||
println!("Hello, world: {parsed_input}");
|
||||
let mut e = Env::root_env();
|
||||
let tree_walker_evaled = tree_walker_eval(Rc::clone(&parsed_input), &mut e)?;
|
||||
println!("tree walker evaled: {tree_walker_evaled}");
|
||||
Ok(())
|
||||
}
|
||||
Reference in New Issue
Block a user