moved all crates into seperate folder + related path fixes

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Anton-4 2022-07-01 17:37:43 +02:00
parent 12ef03bb86
commit eee85fa45d
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1063 changed files with 92 additions and 93 deletions

861
crates/cli/src/lib.rs Normal file
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#[macro_use]
extern crate const_format;
use build::BuiltFile;
use bumpalo::Bump;
use clap::{Arg, ArgMatches, Command, ValueSource};
use roc_build::link::{LinkType, LinkingStrategy};
use roc_error_macros::{internal_error, user_error};
use roc_load::{LoadingProblem, Threading};
use roc_mono::ir::OptLevel;
use std::env;
use std::ffi::{CString, OsStr};
use std::io;
use std::path::{Path, PathBuf};
use std::process;
use target_lexicon::BinaryFormat;
use target_lexicon::{
Architecture, Environment, OperatingSystem, Triple, Vendor, X86_32Architecture,
};
#[cfg(not(target_os = "linux"))]
use tempfile::TempDir;
pub mod build;
mod format;
pub use format::format;
const DEFAULT_ROC_FILENAME: &str = "main.roc";
pub const CMD_BUILD: &str = "build";
pub const CMD_RUN: &str = "run";
pub const CMD_REPL: &str = "repl";
pub const CMD_EDIT: &str = "edit";
pub const CMD_DOCS: &str = "docs";
pub const CMD_CHECK: &str = "check";
pub const CMD_VERSION: &str = "version";
pub const CMD_FORMAT: &str = "format";
pub const FLAG_DEBUG: &str = "debug";
pub const FLAG_DEV: &str = "dev";
pub const FLAG_OPTIMIZE: &str = "optimize";
pub const FLAG_MAX_THREADS: &str = "max-threads";
pub const FLAG_OPT_SIZE: &str = "opt-size";
pub const FLAG_LIB: &str = "lib";
pub const FLAG_NO_LINK: &str = "no-link";
pub const FLAG_TARGET: &str = "target";
pub const FLAG_TIME: &str = "time";
pub const FLAG_LINKER: &str = "linker";
pub const FLAG_PRECOMPILED: &str = "precompiled-host";
pub const FLAG_VALGRIND: &str = "valgrind";
pub const FLAG_CHECK: &str = "check";
pub const ROC_FILE: &str = "ROC_FILE";
pub const ROC_DIR: &str = "ROC_DIR";
pub const DIRECTORY_OR_FILES: &str = "DIRECTORY_OR_FILES";
pub const ARGS_FOR_APP: &str = "ARGS_FOR_APP";
const VERSION: &str = include_str!("../../../version.txt");
pub fn build_app<'a>() -> Command<'a> {
let flag_optimize = Arg::new(FLAG_OPTIMIZE)
.long(FLAG_OPTIMIZE)
.help("Optimize the compiled program to run faster. (Optimization takes time to complete.)")
.required(false);
let flag_max_threads = Arg::new(FLAG_MAX_THREADS)
.long(FLAG_MAX_THREADS)
.help("Limit the number of threads (and hence cores) used during compilation.")
.takes_value(true)
.validator(|s| s.parse::<usize>())
.required(false);
let flag_opt_size = Arg::new(FLAG_OPT_SIZE)
.long(FLAG_OPT_SIZE)
.help("Optimize the compiled program to have a small binary size. (Optimization takes time to complete.)")
.required(false);
let flag_dev = Arg::new(FLAG_DEV)
.long(FLAG_DEV)
.help("Make compilation finish as soon as possible, at the expense of runtime performance.")
.required(false);
let flag_debug = Arg::new(FLAG_DEBUG)
.long(FLAG_DEBUG)
.help("Store LLVM debug information in the generated program.")
.required(false);
let flag_valgrind = Arg::new(FLAG_VALGRIND)
.long(FLAG_VALGRIND)
.help("Some assembly instructions are not supported by valgrind, this flag prevents those from being output when building the host.")
.required(false);
let flag_time = Arg::new(FLAG_TIME)
.long(FLAG_TIME)
.help("Prints detailed compilation time information.")
.required(false);
let flag_linker = Arg::new(FLAG_LINKER)
.long(FLAG_LINKER)
.help("Sets which linker to use. The surgical linker is enabled by default only when building for wasm32 or x86_64 Linux, because those are the only targets it currently supports. Otherwise the legacy linker is used by default.")
.possible_values(["surgical", "legacy"])
.required(false);
let flag_precompiled = Arg::new(FLAG_PRECOMPILED)
.long(FLAG_PRECOMPILED)
.help("Assumes the host has been precompiled and skips recompiling the host. (Enabled by default when using `roc build` with a --target other than `--target host`)")
.possible_values(["true", "false"])
.required(false);
let roc_file_to_run = Arg::new(ROC_FILE)
.help("The .roc file of an app to run")
.allow_invalid_utf8(true)
.required(false)
.default_value(DEFAULT_ROC_FILENAME);
let args_for_app = Arg::new(ARGS_FOR_APP)
.help("Arguments to pass into the app being run, e.g. `roc run -- arg1 arg2`")
.allow_invalid_utf8(true)
.multiple_values(true)
.takes_value(true)
.allow_hyphen_values(true)
.last(true);
let app = Command::new("roc")
.version(concatcp!(VERSION, "\n"))
.about("Runs the given .roc file, if there are no compilation errors.\nUse one of the SUBCOMMANDS below to do something else!")
.subcommand(Command::new(CMD_BUILD)
.about("Build a binary from the given .roc file, but don't run it")
.arg(flag_optimize.clone())
.arg(flag_max_threads.clone())
.arg(flag_opt_size.clone())
.arg(flag_dev.clone())
.arg(flag_debug.clone())
.arg(flag_time.clone())
.arg(flag_linker.clone())
.arg(flag_precompiled.clone())
.arg(flag_valgrind.clone())
.arg(
Arg::new(FLAG_TARGET)
.long(FLAG_TARGET)
.help("Choose a different target")
.default_value(Target::default().as_str())
.possible_values(Target::OPTIONS)
.required(false),
)
.arg(
Arg::new(FLAG_LIB)
.long(FLAG_LIB)
.help("Build a C library instead of an executable.")
.required(false),
)
.arg(
Arg::new(FLAG_NO_LINK)
.long(FLAG_NO_LINK)
.help("Does not link. Instead just outputs the `.o` file")
.required(false),
)
.arg(
Arg::new(ROC_FILE)
.help("The .roc file to build")
.allow_invalid_utf8(true)
.required(false)
.default_value(DEFAULT_ROC_FILENAME),
)
)
.subcommand(Command::new(CMD_REPL)
.about("Launch the interactive Read Eval Print Loop (REPL)")
)
.subcommand(Command::new(CMD_RUN)
.about("Run a .roc file even if it has build errors")
.arg(flag_optimize.clone())
.arg(flag_max_threads.clone())
.arg(flag_opt_size.clone())
.arg(flag_dev.clone())
.arg(flag_debug.clone())
.arg(flag_time.clone())
.arg(flag_linker.clone())
.arg(flag_precompiled.clone())
.arg(flag_valgrind.clone())
.arg(roc_file_to_run.clone())
.arg(args_for_app.clone())
)
.subcommand(Command::new(CMD_FORMAT)
.about("Format a .roc file using standard Roc formatting")
.arg(
Arg::new(DIRECTORY_OR_FILES)
.index(1)
.multiple_values(true)
.required(false)
.allow_invalid_utf8(true))
.arg(
Arg::new(FLAG_CHECK)
.long(FLAG_CHECK)
.help("Checks that specified files are formatted. If formatting is needed, it will return a non-zero exit code.")
.required(false),
)
)
.subcommand(Command::new(CMD_VERSION)
.about(concatcp!("Print the Roc compilers version, which is currently ", VERSION)))
.subcommand(Command::new(CMD_CHECK)
.about("Check the code for problems, but doesnt build or run it")
.arg(flag_time.clone())
.arg(flag_max_threads.clone())
.arg(
Arg::new(ROC_FILE)
.help("The .roc file of an app to check")
.allow_invalid_utf8(true)
.required(false)
.default_value(DEFAULT_ROC_FILENAME),
)
)
.subcommand(
Command::new(CMD_DOCS)
.about("Generate documentation for Roc modules (Work In Progress)")
.arg(Arg::new(DIRECTORY_OR_FILES)
.multiple_values(true)
.required(false)
.help("The directory or files to build documentation for")
.allow_invalid_utf8(true)
)
)
.trailing_var_arg(true)
.arg(flag_optimize)
.arg(flag_max_threads.clone())
.arg(flag_opt_size)
.arg(flag_dev)
.arg(flag_debug)
.arg(flag_time)
.arg(flag_linker)
.arg(flag_precompiled)
.arg(flag_valgrind)
.arg(roc_file_to_run.required(false))
.arg(args_for_app);
if cfg!(feature = "editor") {
app.subcommand(
Command::new(CMD_EDIT)
.about("Launch the Roc editor (Work In Progress)")
.arg(
Arg::new(DIRECTORY_OR_FILES)
.multiple_values(true)
.required(false)
.help("(optional) The directory or files to open on launch."),
),
)
} else {
app
}
}
#[derive(Debug, PartialEq, Eq)]
pub enum BuildConfig {
BuildOnly,
BuildAndRun,
BuildAndRunIfNoErrors,
}
pub enum FormatMode {
Format,
CheckOnly,
}
pub fn build(
matches: &ArgMatches,
config: BuildConfig,
triple: Triple,
link_type: LinkType,
) -> io::Result<i32> {
use build::build_file;
use BuildConfig::*;
let arena = Bump::new();
let filename = matches.value_of_os(ROC_FILE).unwrap();
let opt_level = match (
matches.is_present(FLAG_OPTIMIZE),
matches.is_present(FLAG_OPT_SIZE),
matches.is_present(FLAG_DEV),
) {
(true, false, false) => OptLevel::Optimize,
(false, true, false) => OptLevel::Size,
(false, false, true) => OptLevel::Development,
(false, false, false) => OptLevel::Normal,
_ => user_error!("build can be only one of `--dev`, `--optimize`, or `--opt-size`"),
};
let emit_debug_info = matches.is_present(FLAG_DEBUG);
let emit_timings = matches.is_present(FLAG_TIME);
let threading = match matches
.value_of(FLAG_MAX_THREADS)
.and_then(|s| s.parse::<usize>().ok())
{
None => Threading::AllAvailable,
Some(0) => user_error!("cannot build with at most 0 threads"),
Some(1) => Threading::Single,
Some(n) => Threading::AtMost(n),
};
let wasm_dev_backend = matches!(opt_level, OptLevel::Development)
&& matches!(triple.architecture, Architecture::Wasm32);
let linking_strategy = if wasm_dev_backend {
LinkingStrategy::Additive
} else if !roc_linker::supported(&link_type, &triple)
|| matches.value_of(FLAG_LINKER) == Some("legacy")
{
LinkingStrategy::Legacy
} else {
LinkingStrategy::Surgical
};
let precompiled = if matches.is_present(FLAG_PRECOMPILED) {
matches.value_of(FLAG_PRECOMPILED) == Some("true")
} else {
// When compiling for a different target, default to assuming a precompiled host.
// Otherwise compilation would most likely fail because many toolchains assume you're compiling for the host
// We make an exception for Wasm, because cross-compiling is the norm in that case.
triple != Triple::host() && !matches!(triple.architecture, Architecture::Wasm32)
};
let path = Path::new(filename);
// Spawn the root task
let path = path.canonicalize().unwrap_or_else(|err| {
use io::ErrorKind::*;
match err.kind() {
NotFound => {
let path_string = path.to_string_lossy();
// TODO these should use roc_reporting to display nicer error messages.
match matches.value_source(ROC_FILE) {
Some(ValueSource::DefaultValue) => {
eprintln!(
"\nNo `.roc` file was specified, and the current directory does not contain a {} file to use as a default.\n\nYou can run `roc help` for more information on how to provide a .roc file.\n",
DEFAULT_ROC_FILENAME
)
}
_ => eprintln!("\nThis file was not found: {}\n\nYou can run `roc help` for more information on how to provide a .roc file.\n", path_string),
}
process::exit(1);
}
_ => {
todo!("TODO Gracefully handle opening {:?} - {:?}", path, err);
}
}
});
let src_dir = path.parent().unwrap().canonicalize().unwrap();
let target_valgrind = matches.is_present(FLAG_VALGRIND);
let res_binary_path = build_file(
&arena,
&triple,
src_dir,
path,
opt_level,
emit_debug_info,
emit_timings,
link_type,
linking_strategy,
precompiled,
target_valgrind,
threading,
);
match res_binary_path {
Ok(BuiltFile {
binary_path,
problems,
total_time,
}) => {
match config {
BuildOnly => {
// If possible, report the generated executable name relative to the current dir.
let generated_filename = binary_path
.strip_prefix(env::current_dir().unwrap())
.unwrap_or(&binary_path);
// No need to waste time freeing this memory,
// since the process is about to exit anyway.
std::mem::forget(arena);
println!(
"\x1B[{}m{}\x1B[39m {} and \x1B[{}m{}\x1B[39m {} found in {} ms while successfully building:\n\n {}",
if problems.errors == 0 {
32 // green
} else {
33 // yellow
},
problems.errors,
if problems.errors == 1 {
"error"
} else {
"errors"
},
if problems.warnings == 0 {
32 // green
} else {
33 // yellow
},
problems.warnings,
if problems.warnings == 1 {
"warning"
} else {
"warnings"
},
total_time.as_millis(),
generated_filename.to_str().unwrap()
);
// Return a nonzero exit code if there were problems
Ok(problems.exit_code())
}
BuildAndRun => {
if problems.errors > 0 || problems.warnings > 0 {
println!(
"\x1B[{}m{}\x1B[39m {} and \x1B[{}m{}\x1B[39m {} found in {} ms.\n\nRunning program anyway…\n\n\x1B[36m{}\x1B[39m",
if problems.errors == 0 {
32 // green
} else {
33 // yellow
},
problems.errors,
if problems.errors == 1 {
"error"
} else {
"errors"
},
if problems.warnings == 0 {
32 // green
} else {
33 // yellow
},
problems.warnings,
if problems.warnings == 1 {
"warning"
} else {
"warnings"
},
total_time.as_millis(),
"".repeat(80)
);
}
let args = matches.values_of_os(ARGS_FOR_APP).unwrap_or_default();
let mut bytes = std::fs::read(&binary_path).unwrap();
let x = roc_run(arena, triple, args, &mut bytes);
std::mem::forget(bytes);
x
}
BuildAndRunIfNoErrors => {
if problems.errors == 0 {
if problems.warnings > 0 {
println!(
"\x1B[32m0\x1B[39m errors and \x1B[33m{}\x1B[39m {} found in {} ms.\n\nRunning program…\n\n\x1B[36m{}\x1B[39m",
problems.warnings,
if problems.warnings == 1 {
"warning"
} else {
"warnings"
},
total_time.as_millis(),
"".repeat(80)
);
}
let args = matches.values_of_os(ARGS_FOR_APP).unwrap_or_default();
let mut bytes = std::fs::read(&binary_path).unwrap();
let x = roc_run(arena, triple, args, &mut bytes);
std::mem::forget(bytes);
x
} else {
println!(
"\x1B[{}m{}\x1B[39m {} and \x1B[{}m{}\x1B[39m {} found in {} ms.\n\nYou can run the program anyway with: \x1B[32mroc run {}\x1B[39m",
if problems.errors == 0 {
32 // green
} else {
33 // yellow
},
problems.errors,
if problems.errors == 1 {
"error"
} else {
"errors"
},
if problems.warnings == 0 {
32 // green
} else {
33 // yellow
},
problems.warnings,
if problems.warnings == 1 {
"warning"
} else {
"warnings"
},
total_time.as_millis(),
filename.to_string_lossy()
);
Ok(problems.exit_code())
}
}
}
}
Err(LoadingProblem::FormattedReport(report)) => {
print!("{}", report);
Ok(1)
}
Err(other) => {
panic!("build_file failed with error:\n{:?}", other);
}
}
}
fn roc_run<'a, I: IntoIterator<Item = &'a OsStr>>(
arena: Bump, // This should be passed an owned value, not a reference, so we can usefully mem::forget it!
triple: Triple,
args: I,
binary_bytes: &mut [u8],
) -> io::Result<i32> {
match triple.architecture {
Architecture::Wasm32 => {
let executable = roc_run_executable_file_path(binary_bytes)?;
let path = executable.as_path();
// If possible, report the generated executable name relative to the current dir.
let generated_filename = path
.strip_prefix(env::current_dir().unwrap())
.unwrap_or(path);
// No need to waste time freeing this memory,
// since the process is about to exit anyway.
std::mem::forget(arena);
if cfg!(target_family = "unix") {
use std::os::unix::ffi::OsStrExt;
run_with_wasmer(
generated_filename,
args.into_iter().map(|os_str| os_str.as_bytes()),
);
} else {
run_with_wasmer(
generated_filename,
args.into_iter().map(|os_str| {
os_str.to_str().expect(
"Roc does not currently support passing non-UTF8 arguments to Wasmer.",
)
}),
);
}
Ok(0)
}
_ => roc_run_native(arena, args, binary_bytes),
}
}
/// Run on the native OS (not on wasm)
#[cfg(target_family = "unix")]
fn roc_run_native<I: IntoIterator<Item = S>, S: AsRef<OsStr>>(
arena: Bump,
args: I,
binary_bytes: &mut [u8],
) -> std::io::Result<i32> {
use bumpalo::collections::CollectIn;
use std::os::unix::ffi::OsStrExt;
unsafe {
let executable = roc_run_executable_file_path(binary_bytes)?;
let path = executable.as_path();
let path_cstring = CString::new(path.as_os_str().as_bytes()).unwrap();
// argv is an array of pointers to strings passed to the new program
// as its command-line arguments. By convention, the first of these
// strings (i.e., argv[0]) should contain the filename associated
// with the file being executed. The argv array must be terminated
// by a NULL pointer. (Thus, in the new program, argv[argc] will be NULL.)
let c_strings: bumpalo::collections::Vec<CString> = args
.into_iter()
.map(|x| CString::new(x.as_ref().as_bytes()).unwrap())
.collect_in(&arena);
let c_string_pointers = c_strings
.iter()
.map(|x| x.as_bytes_with_nul().as_ptr().cast());
let argv: bumpalo::collections::Vec<*const libc::c_char> =
std::iter::once(path_cstring.as_ptr())
.chain(c_string_pointers)
.chain([std::ptr::null()])
.collect_in(&arena);
// envp is an array of pointers to strings, conventionally of the
// form key=value, which are passed as the environment of the new
// program. The envp array must be terminated by a NULL pointer.
let envp_cstrings: bumpalo::collections::Vec<CString> = std::env::vars_os()
.flat_map(|(k, v)| {
[
CString::new(k.as_bytes()).unwrap(),
CString::new(v.as_bytes()).unwrap(),
]
})
.collect_in(&arena);
let envp: bumpalo::collections::Vec<*const libc::c_char> = envp_cstrings
.iter()
.map(|s| s.as_ptr())
.chain([std::ptr::null()])
.collect_in(&arena);
match executable {
#[cfg(target_os = "linux")]
ExecutableFile::MemFd(fd, _) => {
if libc::fexecve(fd, argv.as_ptr(), envp.as_ptr()) != 0 {
internal_error!(
"libc::fexecve({:?}, ..., ...) failed: {:?}",
path,
errno::errno()
);
}
}
#[cfg(not(target_os = "linux"))]
ExecutableFile::OnDisk(_, _) => {
if libc::execve(path_cstring.as_ptr().cast(), argv.as_ptr(), envp.as_ptr()) != 0 {
internal_error!(
"libc::execve({:?}, ..., ...) failed: {:?}",
path,
errno::errno()
);
}
}
}
}
Ok(1)
}
#[derive(Debug)]
enum ExecutableFile {
#[cfg(target_os = "linux")]
MemFd(libc::c_int, PathBuf),
#[cfg(not(target_os = "linux"))]
OnDisk(TempDir, PathBuf),
}
impl ExecutableFile {
fn as_path(&self) -> &Path {
match self {
#[cfg(target_os = "linux")]
ExecutableFile::MemFd(_, path_buf) => path_buf.as_ref(),
#[cfg(not(target_os = "linux"))]
ExecutableFile::OnDisk(_, path_buf) => path_buf.as_ref(),
}
}
}
#[cfg(target_os = "linux")]
fn roc_run_executable_file_path(binary_bytes: &mut [u8]) -> std::io::Result<ExecutableFile> {
// on linux, we use the `memfd_create` function to create an in-memory anonymous file.
let flags = 0;
let anonymous_file_name = "roc_file_descriptor\0";
let fd = unsafe { libc::memfd_create(anonymous_file_name.as_ptr().cast(), flags) };
if fd == 0 {
internal_error!(
"libc::memfd_create({:?}, {}) failed: file descriptor is 0",
anonymous_file_name,
flags
);
}
let path = PathBuf::from(format!("/proc/self/fd/{}", fd));
std::fs::write(&path, binary_bytes)?;
Ok(ExecutableFile::MemFd(fd, path))
}
#[cfg(all(target_family = "unix", not(target_os = "linux")))]
fn roc_run_executable_file_path(binary_bytes: &mut [u8]) -> std::io::Result<ExecutableFile> {
use std::fs::OpenOptions;
use std::io::Write;
use std::os::unix::fs::OpenOptionsExt;
let temp_dir = tempfile::tempdir()?;
// We have not found a way to use a virtual file on non-Linux OSes.
// Hence we fall back to just writing the file to the file system, and using that file.
let app_path_buf = temp_dir.path().join("roc_app_binary");
let mut file = OpenOptions::new()
.create(true)
.write(true)
.mode(0o777) // create the file as executable
.open(&app_path_buf)?;
file.write_all(binary_bytes)?;
// We store the TempDir in this variant alongside the path to the executable,
// so that the TempDir doesn't get dropped until after we're done with the path.
// If we didn't do that, then the tempdir would potentially get deleted by the
// TempDir's Drop impl before the file had been executed.
Ok(ExecutableFile::OnDisk(temp_dir, app_path_buf))
}
/// Run on the native OS (not on wasm)
#[cfg(not(target_family = "unix"))]
fn roc_run_native<I: IntoIterator<Item = S>, S: AsRef<OsStr>>(
_arena: Bump, // This should be passed an owned value, not a reference, so we can usefully mem::forget it!
_args: I,
_binary_bytes: &mut [u8],
) -> io::Result<i32> {
todo!("TODO support running roc programs on non-UNIX targets");
// let mut cmd = std::process::Command::new(&binary_path);
// // Run the compiled app
// let exit_status = cmd
// .spawn()
// .unwrap_or_else(|err| panic!("Failed to run app after building it: {:?}", err))
// .wait()
// .expect("TODO gracefully handle block_on failing when `roc` spawns a subprocess for the compiled app");
// // `roc [FILE]` exits with the same status code as the app it ran.
// //
// // If you want to know whether there were compilation problems
// // via status code, use either `roc build` or `roc check` instead!
// match exit_status.code() {
// Some(code) => Ok(code),
// None => {
// todo!("TODO gracefully handle the `roc [FILE]` subprocess terminating with a signal.");
// }
// }
}
#[cfg(feature = "run-wasm32")]
fn run_with_wasmer<I: Iterator<Item = S>, S: AsRef<[u8]>>(wasm_path: &std::path::Path, args: I) {
use wasmer::{Instance, Module, Store};
let store = Store::default();
let module = Module::from_file(&store, &wasm_path).unwrap();
// First, we create the `WasiEnv`
use wasmer_wasi::WasiState;
let mut wasi_env = WasiState::new("hello").args(args).finalize().unwrap();
// Then, we get the import object related to our WASI
// and attach it to the Wasm instance.
let import_object = wasi_env.import_object(&module).unwrap();
let instance = Instance::new(&module, &import_object).unwrap();
let start = instance.exports.get_function("_start").unwrap();
use wasmer_wasi::WasiError;
match start.call(&[]) {
Ok(_) => {}
Err(e) => match e.downcast::<WasiError>() {
Ok(WasiError::Exit(0)) => {
// we run the `_start` function, so exit(0) is expected
}
other => panic!("Wasmer error: {:?}", other),
},
}
}
#[cfg(not(feature = "run-wasm32"))]
fn run_with_wasmer<I: Iterator<Item = S>, S: AsRef<[u8]>>(_wasm_path: &std::path::Path, _args: I) {
println!("Running wasm files is not supported on this target.");
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum Target {
System,
Linux32,
Linux64,
Wasm32,
}
impl Default for Target {
fn default() -> Self {
Target::System
}
}
impl Target {
const fn as_str(&self) -> &'static str {
use Target::*;
match self {
System => "system",
Linux32 => "linux32",
Linux64 => "linux64",
Wasm32 => "wasm32",
}
}
/// NOTE keep up to date!
const OPTIONS: &'static [&'static str] = &[
Target::System.as_str(),
Target::Linux32.as_str(),
Target::Linux64.as_str(),
Target::Wasm32.as_str(),
];
pub fn to_triple(self) -> Triple {
use Target::*;
match self {
System => Triple::host(),
Linux32 => Triple {
architecture: Architecture::X86_32(X86_32Architecture::I386),
vendor: Vendor::Unknown,
operating_system: OperatingSystem::Linux,
environment: Environment::Musl,
binary_format: BinaryFormat::Elf,
},
Linux64 => Triple {
architecture: Architecture::X86_64,
vendor: Vendor::Unknown,
operating_system: OperatingSystem::Linux,
environment: Environment::Musl,
binary_format: BinaryFormat::Elf,
},
Wasm32 => Triple {
architecture: Architecture::Wasm32,
vendor: Vendor::Unknown,
operating_system: OperatingSystem::Unknown,
environment: Environment::Unknown,
binary_format: BinaryFormat::Wasm,
},
}
}
}
impl From<&Target> for Triple {
fn from(target: &Target) -> Self {
target.to_triple()
}
}
impl std::fmt::Display for Target {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "{}", self.as_str())
}
}
impl std::str::FromStr for Target {
type Err = String;
fn from_str(string: &str) -> Result<Self, Self::Err> {
match string {
"system" => Ok(Target::System),
"linux32" => Ok(Target::Linux32),
"linux64" => Ok(Target::Linux64),
"wasm32" => Ok(Target::Wasm32),
_ => Err(format!("Roc does not know how to compile to {}", string)),
}
}
}