ishan/monkey
1
0
Fork 0
Code Releases Activity

improved repl with a quit instruction

Browse Source
This commit is contained in:
Ishan Jain 2024-05-26 11:13:01 +05:30
parent 90fa04b29f
commit 144401269d
Signed by: ishan
GPG Key ID: 0506DB2A1CC75C27
4 changed files with 146 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

120
Cargo.lock generated
View File

@ -2,6 +2,34 @@
# It is not intended for manual editing.
version = 3
[[package]]
name = "bitflags"
version = "2.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
[[package]]
name = "cfg-if"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
[[package]]
name = "cfg_aliases"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fd16c4719339c4530435d38e511904438d07cce7950afa3718a84ac36c10e89e"
[[package]]
name = "ctrlc"
version = "3.4.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "672465ae37dc1bc6380a6547a8883d5dd397b0f1faaad4f265726cc7042a5345"
dependencies = [
"nix",
"windows-sys",
]
[[package]]
name = "either"
version = "1.12.0"
@ -23,10 +51,102 @@ version = "1.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
[[package]]
name = "libc"
version = "0.2.155"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "97b3888a4aecf77e811145cadf6eef5901f4782c53886191b2f693f24761847c"
[[package]]
name = "monkey-interpreter"
version = "0.1.0"
dependencies = [
"ctrlc",
"itertools",
"lazy_static",
]
[[package]]
name = "nix"
version = "0.28.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ab2156c4fce2f8df6c499cc1c763e4394b7482525bf2a9701c9d79d215f519e4"
dependencies = [
"bitflags",
"cfg-if",
"cfg_aliases",
"libc",
]
[[package]]
name = "windows-sys"
version = "0.52.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
dependencies = [
"windows-targets",
]
[[package]]
name = "windows-targets"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6f0713a46559409d202e70e28227288446bf7841d3211583a4b53e3f6d96e7eb"
dependencies = [
"windows_aarch64_gnullvm",
"windows_aarch64_msvc",
"windows_i686_gnu",
"windows_i686_gnullvm",
"windows_i686_msvc",
"windows_x86_64_gnu",
"windows_x86_64_gnullvm",
"windows_x86_64_msvc",
]
[[package]]
name = "windows_aarch64_gnullvm"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7088eed71e8b8dda258ecc8bac5fb1153c5cffaf2578fc8ff5d61e23578d3263"
[[package]]
name = "windows_aarch64_msvc"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9985fd1504e250c615ca5f281c3f7a6da76213ebd5ccc9561496568a2752afb6"
[[package]]
name = "windows_i686_gnu"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "88ba073cf16d5372720ec942a8ccbf61626074c6d4dd2e745299726ce8b89670"
[[package]]
name = "windows_i686_gnullvm"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "87f4261229030a858f36b459e748ae97545d6f1ec60e5e0d6a3d32e0dc232ee9"
[[package]]
name = "windows_i686_msvc"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "db3c2bf3d13d5b658be73463284eaf12830ac9a26a90c717b7f771dfe97487bf"
[[package]]
name = "windows_x86_64_gnu"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4e4246f76bdeff09eb48875a0fd3e2af6aada79d409d33011886d3e1581517d9"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "852298e482cd67c356ddd9570386e2862b5673c85bd5f88df9ab6802b334c596"
[[package]]
name = "windows_x86_64_msvc"
version = "0.52.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bec47e5bfd1bff0eeaf6d8b485cc1074891a197ab4225d504cb7a1ab88b02bf0"

1
Cargo.toml
View File

@ -5,5 +5,6 @@ authors = ["ishanjain28 <ishanjain28@gmail.com>"]
edition = "2018"
[dependencies]
ctrlc = "3.4.4"
itertools = "0.10.5"
lazy_static = "1.4.0"

2
src/main.rs
View File

@ -1,5 +1,3 @@
#![feature(assert_matches)]
#[macro_use]
extern crate lazy_static;

25
src/repl.rs
View File

@ -8,6 +8,8 @@ use {
cell::RefCell,
io::{self, BufRead, Result as IoResult, Write},
rc::Rc,
sync::mpsc,
time::Duration,
},
};
@ -23,10 +25,33 @@ pub fn init() {
}
fn start<R: BufRead, W: Write>(mut ip: R, mut out: W) {
out.write_all(b"Welcome to Monkey! Press Ctrl+C twice and enter to quit\n")
.unwrap();
let (send, recv) = mpsc::channel();
let mut should_quit = false;
ctrlc::set_handler(move || {
send.send(()).expect("error in sending signal to channel");
})
.expect("error in setting Ctrl+C handler");
let environment = Rc::new(RefCell::new(Environment::new()));
loop {
out.write_all(PROMPT).unwrap();
out.flush().unwrap();
if recv.recv_timeout(Duration::from_millis(5)).is_ok() {
if should_quit {
std::process::exit(0);
}
should_quit = true;
out.write_all(b"\r \r")
.unwrap();
continue;
} else {
should_quit = false;
}
let mut s = String::new();
ip.read_line(&mut s).unwrap();