| 1 | // Derived from code in LLVM, which is: |
|---|---|
| 2 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 3 | // See https://llvm.org/LICENSE.txt for license information. |
| 4 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 5 | |
| 6 | pub fn get_arm64ec_mangled_function_name(name: &str) -> Option<String> { |
| 7 | let first_char = name.chars().next().unwrap(); |
| 8 | let is_cpp_fn = first_char == '?'; |
| 9 | if is_cpp_fn && name.contains("$$h") { |
| 10 | return None; |
| 11 | } |
| 12 | if !is_cpp_fn && first_char == '#'{ |
| 13 | return None; |
| 14 | } |
| 15 | |
| 16 | let mut prefix = "$$h"; |
| 17 | let insert_idx = if is_cpp_fn { |
| 18 | match name.find("@@") { |
| 19 | Some(two_at_signs_idx) if Some(two_at_signs_idx) != name.find("@@@") => { |
| 20 | two_at_signs_idx + 2 |
| 21 | } |
| 22 | _ => name.find('@').map_or(name.len(), |idx| idx + 1), |
| 23 | } |
| 24 | } else { |
| 25 | prefix = "#"; |
| 26 | 0 |
| 27 | }; |
| 28 | |
| 29 | Some(format!( |
| 30 | "{}{prefix}{} ", |
| 31 | &name[..insert_idx], |
| 32 | &name[insert_idx..] |
| 33 | )) |
| 34 | } |
| 35 | |
| 36 | pub fn get_arm64ec_demangled_function_name(name: &str) -> Option<String> { |
| 37 | let first_char: char = name.chars().next().unwrap(); |
| 38 | if first_char == '#'{ |
| 39 | return Some(name[1..].to_string()); |
| 40 | } |
| 41 | if first_char != '?'{ |
| 42 | return None; |
| 43 | } |
| 44 | |
| 45 | match name.split_once(delimiter:"$$h") { |
| 46 | Some((first: &str, second: &str)) if !second.is_empty() => Some(format!("{first}{second} ")), |
| 47 | _ => None, |
| 48 | } |
| 49 | } |
| 50 |