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Copy pathdemangler.rs
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49 lines (42 loc) · 1.66 KB
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use alloc::string::String;
use crate::diff::Demangler;
#[cfg(feature = "demangler")]
impl Demangler {
pub fn demangle(&self, name: &str) -> Option<String> {
match self {
Demangler::None => None,
Demangler::Codewarrior => Self::demangle_codewarrior(name),
Demangler::Msvc => Self::demangle_msvc(name),
Demangler::Itanium => Self::demangle_itanium(name),
Demangler::GnuLegacy => Self::demangle_gnu_legacy(name),
Demangler::Auto => {
// Try to guess
if name.starts_with('?') {
Self::demangle_msvc(name)
} else {
Self::demangle_codewarrior(name)
.or_else(|| Self::demangle_gnu_legacy(name))
.or_else(|| Self::demangle_itanium(name))
}
}
}
}
fn demangle_codewarrior(name: &str) -> Option<String> {
cwdemangle::demangle(name, &cwdemangle::DemangleOptions::default())
}
fn demangle_msvc(name: &str) -> Option<String> {
msvc_demangler::demangle(name, msvc_demangler::DemangleFlags::llvm()).ok()
}
fn demangle_itanium(name: &str) -> Option<String> {
let name = name.trim_start_matches('.');
cpp_demangle::Symbol::new(name).ok().and_then(|s| s.demangle().ok())
}
fn demangle_gnu_legacy(name: &str) -> Option<String> {
let name = name.trim_start_matches('.');
gnuv2_demangle::demangle(name, &gnuv2_demangle::DemangleConfig::new()).ok()
}
}
#[cfg(not(feature = "demangler"))]
impl Demangler {
pub fn demangle(&self, _name: &str) -> Option<String> { None }
}