clif_json/
clif-json.rs

1//! Utility for `cranelift_serde`.
2
3#![deny(missing_docs)]
4
5use clap::Parser;
6use cranelift_codegen::ir::Function;
7use cranelift_reader::parse_functions;
8use std::fs::File;
9use std::io;
10use std::io::prelude::*;
11use std::process;
12
13fn call_ser(file: &str, pretty: bool) -> Result<(), String> {
14    let ret_of_parse = parse_functions(file);
15    match ret_of_parse {
16        Ok(funcs) => {
17            let ser_str = if pretty {
18                serde_json::to_string_pretty(&funcs).unwrap()
19            } else {
20                serde_json::to_string(&funcs).unwrap()
21            };
22            println!("{ser_str}");
23            Ok(())
24        }
25        Err(_pe) => Err("There was a parsing error".to_string()),
26    }
27}
28
29fn call_de(file: &File) -> Result<(), String> {
30    let de: Vec<Function> = match serde_json::from_reader(file) {
31        Result::Ok(val) => val,
32        Result::Err(err) => panic!("{}", err),
33    };
34    println!("{de:?}");
35    Ok(())
36}
37
38/// Cranelift JSON serializer/deserializer utility
39#[derive(Parser, Debug)]
40#[command(about)]
41enum Args {
42    /// Serializes Cranelift IR into JSON
43    Serialize {
44        /// Generate pretty json
45        #[arg(long, short)]
46        pretty: bool,
47
48        /// Input file for serialization
49        file: String,
50    },
51    /// Deserializes Cranelift IR into JSON
52    Deserialize {
53        /// Input file for deserialization
54        file: String,
55    },
56}
57
58fn main() {
59    let res_serde = match Args::parse() {
60        Args::Serialize { pretty, file } => {
61            let mut contents = String::new();
62            let mut file = File::open(file).expect("Unable to open the file");
63            file.read_to_string(&mut contents)
64                .expect("Unable to read the file");
65
66            call_ser(&contents, pretty)
67        }
68        Args::Deserialize { file } => {
69            let file = File::open(file).expect("Unable to open the file");
70            call_de(&file)
71        }
72    };
73
74    if let Err(mut msg) = res_serde {
75        if !msg.ends_with('\n') {
76            msg.push('\n');
77        }
78        io::stdout().flush().expect("flushing stdout");
79        io::stderr().write_all(msg.as_bytes()).unwrap();
80        process::exit(1);
81    }
82}
clif_json/clif-json.rs

clif_json/
clif-json.rs
