rust/compiler/rustc_session/src/utils.rs
Daniil Belov 7d4a98e61a Lib kind -l link-arg:
arbitrary link argument like -C link-arg, but respecting relative order to other `-l` options, unstable
2022-07-26 13:55:27 +03:00

94 lines
3.2 KiB
Rust

use crate::session::Session;
use rustc_data_structures::profiling::VerboseTimingGuard;
use std::path::{Path, PathBuf};
impl Session {
pub fn timer<'a>(&'a self, what: &'static str) -> VerboseTimingGuard<'a> {
self.prof.verbose_generic_activity(what)
}
pub fn time<R>(&self, what: &'static str, f: impl FnOnce() -> R) -> R {
self.prof.verbose_generic_activity(what).run(f)
}
}
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Encodable, Decodable)]
#[derive(HashStable_Generic)]
pub enum NativeLibKind {
/// Static library (e.g. `libfoo.a` on Linux or `foo.lib` on Windows/MSVC)
Static {
/// Whether to bundle objects from static library into produced rlib
bundle: Option<bool>,
/// Whether to link static library without throwing any object files away
whole_archive: Option<bool>,
},
/// Dynamic library (e.g. `libfoo.so` on Linux)
/// or an import library corresponding to a dynamic library (e.g. `foo.lib` on Windows/MSVC).
Dylib {
/// Whether the dynamic library will be linked only if it satisfies some undefined symbols
as_needed: Option<bool>,
},
/// Dynamic library (e.g. `foo.dll` on Windows) without a corresponding import library.
RawDylib,
/// A macOS-specific kind of dynamic libraries.
Framework {
/// Whether the framework will be linked only if it satisfies some undefined symbols
as_needed: Option<bool>,
},
/// Argument which is passed to linker, relative order with libraries and other arguments
/// is preserved
LinkArg,
/// The library kind wasn't specified, `Dylib` is currently used as a default.
Unspecified,
}
impl NativeLibKind {
pub fn has_modifiers(&self) -> bool {
match self {
NativeLibKind::Static { bundle, whole_archive } => {
bundle.is_some() || whole_archive.is_some()
}
NativeLibKind::Dylib { as_needed } | NativeLibKind::Framework { as_needed } => {
as_needed.is_some()
}
NativeLibKind::RawDylib | NativeLibKind::Unspecified | NativeLibKind::LinkArg => false,
}
}
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Encodable, Decodable)]
#[derive(HashStable_Generic)]
pub struct NativeLib {
pub name: String,
pub new_name: Option<String>,
pub kind: NativeLibKind,
pub verbatim: Option<bool>,
}
impl NativeLib {
pub fn has_modifiers(&self) -> bool {
self.verbatim.is_some() || self.kind.has_modifiers()
}
}
/// A path that has been canonicalized along with its original, non-canonicalized form
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub struct CanonicalizedPath {
// Optional since canonicalization can sometimes fail
canonicalized: Option<PathBuf>,
original: PathBuf,
}
impl CanonicalizedPath {
pub fn new(path: &Path) -> Self {
Self { original: path.to_owned(), canonicalized: std::fs::canonicalize(path).ok() }
}
pub fn canonicalized(&self) -> &PathBuf {
self.canonicalized.as_ref().unwrap_or(self.original())
}
pub fn original(&self) -> &PathBuf {
&self.original
}
}