Demangles rustc mangled names.
rust-demangler supports the requirements of the llvm-cov show -Xdemangler option, to perform Rust-specific symbol demangling:
The demangler is expected to read a newline-separated list of symbols from stdin and write a newline-separated list of the same length to stdout.
To use rust-demangler with llvm-cov for example:
$ TARGET="${PWD}/build/x86_64-unknown-linux-gnu" $ "${TARGET}"/llvm/bin/llvm-cov show \ --Xdemangler=path/to/rust-demangler \ --instr-profile=main.profdata ./main --show-line-counts-or-regions
rust-demangler is a Rust “extended tool”, used in Rust compiler tests, and optionally included in Rust distributions that enable coverage profiling. Symbol demangling is implemented using the rustc-demangle crate.
(Note, for Rust developers, the third-party tool rustfilt also supports llvm-cov symbol demangling. rustfilt is a more generalized tool that searches any body of text, using pattern matching, to find and demangle Rust symbols.)
Rust-demangler is distributed under the terms of both the MIT license and the Apache License (Version 2.0).
See LICENSE-APACHE and LICENSE-MIT for details.