pub struct Symbol<T> { /* private fields */ }
Expand description

A mangled symbol that has been parsed into an AST.

This is generic over some storage type T which can be either owned or borrowed. See the OwnedSymbol and BorrowedSymbol type aliases.

Implementations

Given some raw storage, parse the mangled symbol from it with the default options.

use cpp_demangle::Symbol;
use std::string::ToString;

// First, something easy :)

let mangled = b"_ZN5space3fooEibc";

let sym = Symbol::new(&mangled[..])
    .expect("Could not parse mangled symbol!");

let demangled = sym.to_string();
assert_eq!(demangled, "space::foo(int, bool, char)");

// Now let's try something a little more complicated!

let mangled =
    b"__Z28JS_GetPropertyDescriptorByIdP9JSContextN2JS6HandleIP8JSObjectEENS2_I4jsidEENS1_13MutableHandleINS1_18PropertyDescriptorEEE";

let sym = Symbol::new(&mangled[..])
    .expect("Could not parse mangled symbol!");

let demangled = sym.to_string();
assert_eq!(
    demangled,
    "JS_GetPropertyDescriptorById(JSContext*, JS::Handle<JSObject*>, JS::Handle<jsid>, JS::MutableHandle<JS::PropertyDescriptor>)"
);

Given some raw storage, parse the mangled symbol from it.

use cpp_demangle::{ParseOptions, Symbol};
use std::string::ToString;

// First, something easy :)

let mangled = b"_ZN5space3fooEibc";

let parse_options = ParseOptions::default()
    .recursion_limit(1024);

let sym = Symbol::new_with_options(&mangled[..], &parse_options)
    .expect("Could not parse mangled symbol!");

let demangled = sym.to_string();
assert_eq!(demangled, "space::foo(int, bool, char)");

// Now let's try something a little more complicated!

let mangled =
    b"__Z28JS_GetPropertyDescriptorByIdP9JSContextN2JS6HandleIP8JSObjectEENS2_I4jsidEENS1_13MutableHandleINS1_18PropertyDescriptorEEE";

let sym = Symbol::new(&mangled[..])
    .expect("Could not parse mangled symbol!");

let demangled = sym.to_string();
assert_eq!(
    demangled,
    "JS_GetPropertyDescriptorById(JSContext*, JS::Handle<JSObject*>, JS::Handle<jsid>, JS::MutableHandle<JS::PropertyDescriptor>)"
);

Demangle the symbol and return it as a String.

Unlike the ToString implementation, this function allows options to be specified.

use cpp_demangle::{DemangleOptions, Symbol};
use std::string::ToString;

let mangled = b"_ZN5space3fooEibc";

let sym = Symbol::new(&mangled[..])
    .expect("Could not parse mangled symbol!");

let demangled = sym.to_string();
let options = DemangleOptions::default();
let demangled_again = sym.demangle(&options).unwrap();
assert_eq!(demangled_again, demangled);

Demangle the symbol to a DemangleWrite, which lets the consumer be informed about syntactic structure.

Parse a mangled symbol from input and return it and the trailing tail of bytes that come after the symbol, with the default options.

While Symbol::new will return an error if there is unexpected trailing bytes, with_tail simply returns the trailing bytes along with the parsed symbol.

use cpp_demangle::BorrowedSymbol;
use std::string::ToString;

let mangled = b"_ZN5space3fooEibc and some trailing junk";

let (sym, tail) = BorrowedSymbol::with_tail(&mangled[..])
    .expect("Could not parse mangled symbol!");

assert_eq!(tail, b" and some trailing junk");

let demangled = sym.to_string();
assert_eq!(demangled, "space::foo(int, bool, char)");

Parse a mangled symbol from input and return it and the trailing tail of bytes that come after the symbol.

While Symbol::new_with_options will return an error if there is unexpected trailing bytes, with_tail_and_options simply returns the trailing bytes along with the parsed symbol.

use cpp_demangle::{BorrowedSymbol, ParseOptions};
use std::string::ToString;

let mangled = b"_ZN5space3fooEibc and some trailing junk";

let parse_options = ParseOptions::default()
    .recursion_limit(1024);

let (sym, tail) = BorrowedSymbol::with_tail_and_options(&mangled[..], &parse_options)
    .expect("Could not parse mangled symbol!");

assert_eq!(tail, b" and some trailing junk");

let demangled = sym.to_string();
assert_eq!(demangled, "space::foo(int, bool, char)");

Trait Implementations

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Formats the value using the given formatter. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.