1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109

//! jcompiler is a compiler for the J programming language.

extern crate ansi_term;
extern crate getopts;
extern crate itertools;
extern crate jcompilerlib;
extern crate llvm_sys;
extern crate matches;
extern crate quickcheck;
extern crate rand;
extern crate regex;
extern crate tempfile;

use getopts::Options;
use jcompilerlib::compiler;
use std::env;

fn main() {
    let args: Vec<_> = env::args().collect();

    let mut opts = Options::new();

    opts.optflag("h", "help", "print usage");
    opts.optflag("v", "version", "print jcompiler version");
    opts.optflag("", "verbose", "print AST, IR, etc.");
    opts.optflag("m", "mem-usage", "binary will print memory usage");
    opts.optopt("", "llvm-opt", "LLVM optimization level (0 to 3)", "LVL");
    opts.optopt(
        "",
        "strip",
        "strip symbols from the binary (default: yes)",
        "yes|no",
    );

    let default_triple_cstring = compiler::get_default_target_triple();
    let default_triple = default_triple_cstring.to_str().unwrap();

    opts.optopt(
        "",
        "target",
        &format!("LLVM target triple (default: {})", default_triple),
        "TARGET",
    );

    let matches = match opts.parse(&args[1..]) {
        Ok(m) => m,
        Err(_) => {
            jcompilerlib::print_usage(&args[0], opts);
            std::process::exit(1);
        }
    };

    if matches.opt_present("h") {
        jcompilerlib::print_usage(&args[0], opts);
        return;
    }

    if matches.opt_present("v") {
        println!("jcompiler {}", env!("CARGO_PKG_VERSION"));
        return;
    }

    if matches.free.len() != 1 {
        jcompilerlib::print_usage(&args[0], opts);
        std::process::exit(1);
    }

    let llvm_opt_level: u8 = match matches.opt_str("llvm-opt") {
        Some(lvlstr) => match lvlstr.parse::<u8>() {
            Ok(n) if n <= 3 => n,
            _ => {
                println!("Unrecognized choice \"{}\" for --llvm-opt; need \"0\", \"1\", \"2\", or \"3\".", lvlstr);
                return;
            }
        },
        _ => 0,
    };

    let do_strip = match matches.opt_str("strip") {
        Some(ans) => match &ans[..] {
            "yes" => true,
            "no" => false,
            _ => {
                println!(
                    "Unrecognized choice \"{}\" for --strip; need \"yes\" or \"no\".",
                    ans
                );
                return;
            }
        },
        _ => true, // Strip executables of debugging symbols by default.
    };

    match jcompilerlib::compile(
        &matches.free[0],
        matches.opt_str("target"),
        llvm_opt_level,
        do_strip,
        matches.opt_present("mem-usage"),
        matches.opt_present("verbose"),
        None,
    ) {
        Ok(_) => {}
        Err(e) => {
            eprintln!("{}", e);
            std::process::exit(2);
        }
    };
}