Initial Import: rustc-demangle-capi-0.1.16 am: c21735ee3a am: 1a12e9ce11 am: 333c830c5e
Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/rustc-demangle-capi/+/1798339
Change-Id: I7182398021e8d34a6bd3f8786ea0b504fb4a5d60
diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json
new file mode 100644
index 0000000..8ef633d
--- /dev/null
+++ b/.cargo_vcs_info.json
@@ -0,0 +1,5 @@
+{
+ "git": {
+ "sha1": "f540792067ab84d0f47164b29d7db5c7ba3b367d"
+ }
+}
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..5828d25
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,25 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies
+#
+# If you believe there's an error in this file please file an
+# issue against the rust-lang/cargo repository. If you're
+# editing this file be aware that the upstream Cargo.toml
+# will likely look very different (and much more reasonable)
+
+[package]
+name = "rustc-demangle-capi"
+version = "0.1.0"
+authors = ["Torste Aikio <zokier@gmail.com>"]
+description = "C API for the `rustc-demangle` crate\n"
+license = "MIT/Apache-2.0"
+repository = "https://github.com/alexcrichton/rustc-demangle"
+
+[lib]
+name = "rustc_demangle"
+crate-type = ["staticlib", "cdylib"]
+[dependencies.rustc-demangle]
+version = "0.1.16"
diff --git a/Cargo.toml.orig b/Cargo.toml.orig
new file mode 100644
index 0000000..a59a768
--- /dev/null
+++ b/Cargo.toml.orig
@@ -0,0 +1,16 @@
+[package]
+name = "rustc-demangle-capi"
+version = "0.1.0"
+authors = ["Torste Aikio <zokier@gmail.com>"]
+description = """
+C API for the `rustc-demangle` crate
+"""
+license = "MIT/Apache-2.0"
+repository = "https://github.com/alexcrichton/rustc-demangle"
+
+[lib]
+name = "rustc_demangle"
+crate-type = ["staticlib", "cdylib"]
+
+[dependencies]
+rustc-demangle = { version = "0.1.16", path = "../.." }
diff --git a/LICENSE b/LICENSE
new file mode 120000
index 0000000..6b579aa
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1 @@
+LICENSE-APACHE
\ No newline at end of file
diff --git a/LICENSE-APACHE b/LICENSE-APACHE
new file mode 100644
index 0000000..16fe87b
--- /dev/null
+++ b/LICENSE-APACHE
@@ -0,0 +1,201 @@
+ Apache License
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+ http://www.apache.org/licenses/
+
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diff --git a/LICENSE-MIT b/LICENSE-MIT
new file mode 100644
index 0000000..39e0ed6
--- /dev/null
+++ b/LICENSE-MIT
@@ -0,0 +1,25 @@
+Copyright (c) 2014 Alex Crichton
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..62d8c92
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,20 @@
+name: "rustc-demangle-capi"
+description: "C API for the `rustc-demangle` crate"
+third_party {
+ url {
+ type: HOMEPAGE
+ value: "https://crates.io/crates/rustc-demangle-capi"
+ }
+ url {
+ type: ARCHIVE
+ value: "https://static.crates.io/crates/rustc-demangle-capi/rustc-demangle-capi-0.1.0.crate"
+ }
+ version: "0.1.0"
+ # Dual-licensed, using the least restrictive per go/thirdpartylicenses#same.
+ license_type: NOTICE
+ last_upgrade_date {
+ year: 2021
+ month: 8
+ day: 17
+ }
+}
diff --git a/MODULE_LICENSE_APACHE2 b/MODULE_LICENSE_APACHE2
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/MODULE_LICENSE_APACHE2
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..45dc4dd
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+include platform/prebuilts/rust:master:/OWNERS
diff --git a/include/rustc_demangle.h b/include/rustc_demangle.h
new file mode 100644
index 0000000..61c4aa1
--- /dev/null
+++ b/include/rustc_demangle.h
@@ -0,0 +1,18 @@
+#ifndef RUST_DEMANGLE_H_
+#define RUST_DEMANGLE_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Demangles symbol given in `mangled` argument into `out` buffer
+//
+// Returns 0 if `mangled` is not Rust symbol or if `out` buffer is too small
+// Returns 1 otherwise
+int rustc_demangle(const char *mangled, char *out, size_t out_size);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // RUSTC_DEMANGLE_H_
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..51e3103
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,160 @@
+extern crate rustc_demangle;
+
+use std::io::Write;
+use std::os::raw::{c_char, c_int};
+
+/// C-style interface for demangling.
+/// Demangles symbol given in `mangled` argument into `out` buffer
+///
+/// Unsafe as it handles buffers by raw pointers.
+///
+/// Returns 0 if `mangled` is not Rust symbol or if `out` buffer is too small
+/// Returns 1 otherwise
+#[no_mangle]
+pub unsafe extern "C" fn rustc_demangle(
+ mangled: *const c_char,
+ out: *mut c_char,
+ out_size: usize,
+) -> c_int {
+ let mangled_str = match std::ffi::CStr::from_ptr(mangled).to_str() {
+ Ok(s) => s,
+ Err(_) => return 0,
+ };
+ match rustc_demangle::try_demangle(mangled_str) {
+ Ok(demangle) => {
+ let mut out_slice = std::slice::from_raw_parts_mut(out as *mut u8, out_size);
+ match write!(out_slice, "{:#}\0", demangle) {
+ Ok(_) => return 1,
+ Err(_) => return 0,
+ }
+ }
+ Err(_) => return 0,
+ }
+}
+
+#[cfg(test)]
+mod tests {
+ use std;
+ use std::os::raw::c_char;
+ #[test]
+ fn demangle_c_str_large() {
+ let mangled = "_ZN4testE\0";
+ let mut out_buf: Vec<u8> = vec![42; 8];
+ let res = unsafe {
+ super::rustc_demangle(
+ mangled.as_ptr() as *const c_char,
+ out_buf.as_mut_ptr() as *mut c_char,
+ 8,
+ )
+ };
+ assert_eq!(res, 1);
+ let out_str = std::str::from_utf8(&out_buf[..5]).unwrap();
+ assert_eq!(out_str, "test\0");
+ }
+
+ #[test]
+ fn demangle_c_str_exact() {
+ let mangled = "_ZN4testE\0";
+ let mut out_buf: Vec<u8> = vec![42; 8];
+ let res = unsafe {
+ super::rustc_demangle(
+ mangled.as_ptr() as *const c_char,
+ out_buf.as_mut_ptr() as *mut c_char,
+ 5,
+ )
+ };
+ assert_eq!(res, 1);
+ let out_str = std::str::from_utf8(&out_buf).unwrap();
+ assert_eq!(out_str, "test\0***");
+ }
+
+ #[test]
+ fn demangle_c_str_small() {
+ let mangled = "_ZN4testE\0";
+ let mut out_buf: Vec<u8> = vec![42; 8];
+ let res = unsafe {
+ super::rustc_demangle(
+ mangled.as_ptr() as *const c_char,
+ out_buf.as_mut_ptr() as *mut c_char,
+ 4,
+ )
+ };
+ assert_eq!(res, 0);
+ let out_str = std::str::from_utf8(&out_buf[4..]).unwrap();
+ assert_eq!(out_str, "****");
+ }
+
+ #[test]
+ fn demangle_c_str_smaller() {
+ let mangled = "_ZN4testE\0";
+ let mut out_buf: Vec<u8> = vec![42; 8];
+ let res = unsafe {
+ super::rustc_demangle(
+ mangled.as_ptr() as *const c_char,
+ out_buf.as_mut_ptr() as *mut c_char,
+ 3,
+ )
+ };
+ assert_eq!(res, 0);
+ let out_str = std::str::from_utf8(&out_buf[3..]).unwrap();
+ assert_eq!(out_str, "*****");
+ }
+
+ #[test]
+ fn demangle_c_str_zero() {
+ let mangled = "_ZN4testE\0";
+ let mut out_buf: Vec<u8> = vec![42; 8];
+ let res = unsafe {
+ super::rustc_demangle(
+ mangled.as_ptr() as *const c_char,
+ out_buf.as_mut_ptr() as *mut c_char,
+ 0,
+ )
+ };
+ assert_eq!(res, 0);
+ let out_str = std::str::from_utf8(&out_buf).unwrap();
+ assert_eq!(out_str, "********");
+ }
+
+ #[test]
+ fn demangle_c_str_not_rust_symbol() {
+ let mangled = "la la la\0";
+ let mut out_buf: Vec<u8> = vec![42; 8];
+ let res = unsafe {
+ super::rustc_demangle(
+ mangled.as_ptr() as *const c_char,
+ out_buf.as_mut_ptr() as *mut c_char,
+ 8,
+ )
+ };
+ assert_eq!(res, 0);
+ }
+
+ #[test]
+ fn demangle_c_str_null() {
+ let mangled = "\0";
+ let mut out_buf: Vec<u8> = vec![42; 8];
+ let res = unsafe {
+ super::rustc_demangle(
+ mangled.as_ptr() as *const c_char,
+ out_buf.as_mut_ptr() as *mut c_char,
+ 8,
+ )
+ };
+ assert_eq!(res, 0);
+ }
+
+ #[test]
+ fn demangle_c_str_invalid_utf8() {
+ let mangled = [116, 101, 115, 116, 165, 0];
+ let mut out_buf: Vec<u8> = vec![42; 8];
+ let res = unsafe {
+ super::rustc_demangle(
+ mangled.as_ptr() as *const c_char,
+ out_buf.as_mut_ptr() as *mut c_char,
+ 8,
+ )
+ };
+ assert_eq!(res, 0);
+ }
+}
