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Rui UeyamaandClaude Opus 5.5
9e4f5fc672
The Mach-O linker's util module mostly re-exported mold-common's helpers. Its files now import them from mold-common as the ELF linker's do, and call the little-endian accessors by their mold-common names (read_ul32 for read32, and so on). What it defined itself goes where it belongs: push16/32/64 become endian's push_ul16/32/64, align_to_mod moves to bits, path_bytes to path, name_sort_key to the symbol table and reserve_arena to input_files. sha256 and sha1 are gone; their callers call the sha2 and sha1 crates. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
51 lines
1.6 KiB
Rust
51 lines
1.6 KiB
Rust
//! Lexical path manipulation, which doesn't consult the file system.
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/// Normalizes a path lexically, resolving `.` and `..` components without
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/// consulting the file system.
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pub fn path_clean(path: &str) -> String {
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clean_path(std::path::Path::new(path)).to_string_lossy().into_owned()
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}
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/// The bytes of a path, as the file system and Mach-O load commands
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/// hold them.
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pub fn path_bytes(path: &std::path::Path) -> &[u8] {
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path.as_os_str().as_encoded_bytes()
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}
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/// Normalizes an OS path without resolving symlinks.
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pub fn clean_path(path: &std::path::Path) -> std::path::PathBuf {
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use std::path::{Component, PathBuf};
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let mut out = PathBuf::new();
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for component in path.components() {
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match component {
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Component::CurDir => {}
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Component::ParentDir => match out.components().next_back() {
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Some(Component::RootDir) => {}
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None | Some(Component::ParentDir) => out.push(".."),
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_ => {
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out.pop();
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}
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},
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other => out.push(other),
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}
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}
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if out.as_os_str().is_empty() { PathBuf::from(".") } else { out }
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn clean_paths() {
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assert_eq!(path_clean("a/./b/../c"), "a/c");
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assert_eq!(path_clean("/a/../.."), "/");
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assert_eq!(path_clean("../a"), "../a");
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assert_eq!(path_clean("../../a/b"), "../../a/b");
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assert_eq!(path_clean("a/../../b"), "../b");
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assert_eq!(path_clean("a/b/../../../c"), "../c");
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assert_eq!(path_clean(".."), "..");
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assert_eq!(path_clean("/.."), "/");
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}
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}
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