rust.c

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// SPDX-FileCopyrightText: 2011-2018 pancake <pancake@nopcode.org>
// SPDX-License-Identifier: LGPL-3.0-only
#include "demangler_util.h"
#include <rz_libdemangle.h>
 
#define RS(from, to) \
    if (replace_seq((const char **)&in, &out, (const char *)(from), to)) \
    continue
 
static bool replace_seq(const char **in, char **out, const char *seq, char value) {
    size_t len = strlen(seq);
 
    if (strncmp(*in, seq, len)) {
        return false;
    }
 
    **out = value;
 
    *in += len;
    *out += 1;
 
    return true;
}
 
char *libdemangle_handler_rust(const char *sym) {
    int len;
    char *str = NULL, *out, *in;
 
    str = libdemangle_handler_cxx(sym);
 
    if (!str) {
        return str;
    }
 
    out = in = str;
    len = strlen(str);
 
    if (*in == '_') {
        in++;
        len--;
    }
 
    while ((len = strlen(in)) > 0) {
        if (*in == '$') {
            RS("$SP$", '@');
            RS("$BP$", '*');
            RS("$RF$", '&');
            RS("$LT$", '<');
            RS("$GT$", '>');
            RS("$LP$", '(');
            RS("$RP$", ')');
            RS("$C$", ',');
            // maybe a good idea to replace all utf-sequences by regexp \$u[0-9a-f]{2}\$ or so
            RS("$u20$", ' ');
            RS("$u22$", '\"');
            RS("$u27$", '\'');
            RS("$u2b$", '+');
            RS("$u3b$", ';');
            RS("$u5b$", '[');
            RS("$u5d$", ']');
            RS("$u7e$", '~');
        }
        if (*in == '.') {
            if (len > 0 && in[1] == '.') {
                in += 2;
                *out++ = ':';
                *out++ = ':';
                len--;
            } else {
                in += 1;
                *out = '-';
            }
        } else {
            *out++ = *in++;
        }
    }
    *out = '\0';
 
    return str;
}