Update upstream source from tag 'upstream/1.52.1+dfsg1'

[rustc.git] / vendor / rustc-ap-rustc_session / src / utils.rs

diff --git a/vendor/rustc-ap-rustc_session/src/utils.rs b/vendor/rustc-ap-rustc_session/src/utils.rs
new file mode 100644 (file)
index 0000000..f3d3330
--- /dev/null
+++ b/vendor/rustc-ap-rustc_session/src/utils.rs
@@ -0,0 +1,55 @@
+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)]
+pub enum NativeLibKind {
+    /// Static library (e.g. `libfoo.a` on Linux or `foo.lib` on Windows/MSVC) included
+    /// when linking a final binary, but not when archiving an rlib.
+    StaticNoBundle,
+    /// Static library (e.g. `libfoo.a` on Linux or `foo.lib` on Windows/MSVC) included
+    /// when linking a final binary, but also included when archiving an rlib.
+    StaticBundle,
+    /// 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,
+    /// Dynamic library (e.g. `foo.dll` on Windows) without a corresponding import library.
+    RawDylib,
+    /// A macOS-specific kind of dynamic libraries.
+    Framework,
+    /// The library kind wasn't specified, `Dylib` is currently used as a default.
+    Unspecified,
+}
+
+rustc_data_structures::impl_stable_hash_via_hash!(NativeLibKind);
+
+/// 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
+    }
+}