Struct rustc_session::search_paths::SearchPathFile

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pub struct SearchPathFile {
    pub path: PathBuf,
    pub file_name_str: String,
}
Expand description

The obvious implementation of SearchPath::files is a Vec<PathBuf>. But it is searched repeatedly by find_library_crate, and the searches involve checking the prefix and suffix of the filename of each PathBuf. This is doable, but very slow, because it involves calls to file_name and extension that are themselves slow.

This type augments the PathBuf with an String containing the PathBuf’s filename. The prefix and suffix checking is much faster on the String than the PathBuf. (The filename must be valid UTF-8. If it’s not, the entry should be skipped, because all Rust output files are valid UTF-8, and so a non-UTF-8 filename couldn’t be one we’re looking for.)

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§path: PathBuf§file_name_str: String

Trait Implementations§

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impl Clone for SearchPathFile

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fn clone(&self) -> SearchPathFile

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SearchPathFile

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<T> Aligned for T

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const ALIGN: Alignment = _

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
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Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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fn filterable( self, filter_name: &'static str ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

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type Init = T

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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 48 bytes