undname.c 53.9 KB
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/*
 *  Demangle VC++ symbols into C function prototypes
 *
 *  Copyright 2000 Jon Griffiths
 *            2004 Eric Pouech
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

#include "config.h"
#include "wine/port.h"

#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "msvcrt.h"

#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);

/* TODO:
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 * - document a bit (grammar + functions)
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 * - back-port this new code into tools/winedump/msmangle.c
 */

/* How data types modifiers are stored:
 * M (in the following definitions) is defined for 
 * 'A', 'B', 'C' and 'D' as follows
 *      {<A>}:  ""
 *      {<B>}:  "const "
 *      {<C>}:  "volatile "
 *      {<D>}:  "const volatile "
 *
 *      in arguments:
 *              P<M>x   {<M>}x*
 *              Q<M>x   {<M>}x* const
 *              A<M>x   {<M>}x&
 *      in data fields:
 *              same as for arguments and also the following
 *              ?<M>x   {<M>}x
 *              
 */

struct array
{
    unsigned            start;          /* first valid reference in array */
    unsigned            num;            /* total number of used elts */
    unsigned            max;
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    unsigned            alloc;
    char**              elts;
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};

/* Structure holding a parsed symbol */
struct parsed_symbol
{
    unsigned            flags;          /* the UNDNAME_ flags used for demangling */
    malloc_func_t       mem_alloc_ptr;  /* internal allocator */
    free_func_t         mem_free_ptr;   /* internal deallocator */

    const char*         current;        /* pointer in input (mangled) string */
    char*               result;         /* demangled string */

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    struct array        names;          /* array of names for back reference */
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    struct array        stack;          /* stack of parsed strings */

    void*               alloc_list;     /* linked list of allocated blocks */
    unsigned            avail_in_first; /* number of available bytes in head block */
};

/* Type for parsing mangled types */
struct datatype_t
{
    const char*         left;
    const char*         right;
};

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static BOOL symbol_demangle(struct parsed_symbol* sym);

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/******************************************************************
 *		und_alloc
 *
 * Internal allocator. Uses a simple linked list of large blocks
 * where we use a poor-man allocator. It's fast, and since all
 * allocation is pool, memory management is easy (esp. freeing).
 */
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static void*    und_alloc(struct parsed_symbol* sym, unsigned int len)
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{
    void*       ptr;

#define BLOCK_SIZE      1024
#define AVAIL_SIZE      (1024 - sizeof(void*))

    if (len > AVAIL_SIZE)
    {
        /* allocate a specific block */
        ptr = sym->mem_alloc_ptr(sizeof(void*) + len);
        if (!ptr) return NULL;
        *(void**)ptr = sym->alloc_list;
        sym->alloc_list = ptr;
        sym->avail_in_first = 0;
        ptr = (char*)sym->alloc_list + sizeof(void*);
    }
    else 
    {
        if (len > sym->avail_in_first)
        {
            /* add a new block */
            ptr = sym->mem_alloc_ptr(BLOCK_SIZE);
            if (!ptr) return NULL;
            *(void**)ptr = sym->alloc_list;
            sym->alloc_list = ptr;
            sym->avail_in_first = AVAIL_SIZE;
        }
        /* grab memory from head block */
        ptr = (char*)sym->alloc_list + BLOCK_SIZE - sym->avail_in_first;
        sym->avail_in_first -= len;
    }
    return ptr;
#undef BLOCK_SIZE
#undef AVAIL_SIZE
}

/******************************************************************
 *		und_free
 * Frees all the blocks in the list of large blocks allocated by
 * und_alloc.
 */
static void und_free_all(struct parsed_symbol* sym)
{
    void*       next;

    while (sym->alloc_list)
    {
        next = *(void**)sym->alloc_list;
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        if(sym->mem_free_ptr) sym->mem_free_ptr(sym->alloc_list);
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        sym->alloc_list = next;
    }
    sym->avail_in_first = 0;
}

/******************************************************************
 *		str_array_init
 * Initialises an array of strings
 */
static void str_array_init(struct array* a)
{
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    a->start = a->num = a->max = a->alloc = 0;
    a->elts = NULL;
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}

/******************************************************************
 *		str_array_push
 * Adding a new string to an array
 */
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static BOOL str_array_push(struct parsed_symbol* sym, const char* ptr, int len,
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                           struct array* a)
{
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    char**      new;

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    assert(ptr);
    assert(a);
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    if (!a->alloc)
    {
        new = und_alloc(sym, (a->alloc = 32) * sizeof(a->elts[0]));
        if (!new) return FALSE;
        a->elts = new;
    }
    else if (a->max >= a->alloc)
    {
        new = und_alloc(sym, (a->alloc * 2) * sizeof(a->elts[0]));
        if (!new) return FALSE;
        memcpy(new, a->elts, a->alloc * sizeof(a->elts[0]));
        a->alloc *= 2;
        a->elts = new;
    }
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    if (len == -1) len = strlen(ptr);
    a->elts[a->num] = und_alloc(sym, len + 1);
    assert(a->elts[a->num]);
    memcpy(a->elts[a->num], ptr, len);
    a->elts[a->num][len] = '\0'; 
    if (++a->num >= a->max) a->max = a->num;
    {
        int i;
        char c;

        for (i = a->max - 1; i >= 0; i--)
        {
            c = '>';
            if (i < a->start) c = '-';
            else if (i >= a->num) c = '}';
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            TRACE("%p\t%d%c %s\n", a, i, c, a->elts[i]);
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        }
    }
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    return TRUE;
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}

/******************************************************************
 *		str_array_get_ref
 * Extracts a reference from an existing array (doing proper type
 * checking)
 */
static char* str_array_get_ref(struct array* cref, unsigned idx)
{
    assert(cref);
    if (cref->start + idx >= cref->max)
    {
        WARN("Out of bounds: %p %d + %d >= %d\n", 
              cref, cref->start, idx, cref->max);
        return NULL;
    }
    TRACE("Returning %p[%d] => %s\n", 
          cref, idx, cref->elts[cref->start + idx]);
    return cref->elts[cref->start + idx];
}

/******************************************************************
 *		str_printf
 * Helper for printf type of command (only %s and %c are implemented) 
 * while dynamically allocating the buffer
 */
static char* str_printf(struct parsed_symbol* sym, const char* format, ...)
{
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    va_list      args;
    unsigned int len = 1, i, sz;
    char*        tmp;
    char*        p;
    char*        t;
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    va_start(args, format);
    for (i = 0; format[i]; i++)
    {
        if (format[i] == '%')
        {
            switch (format[++i])
            {
            case 's': t = va_arg(args, char*); if (t) len += strlen(t); break;
            case 'c': (void)va_arg(args, int); len++; break;
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            default: i--; /* fall through */
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            case '%': len++; break;
            }
        }
        else len++;
    }
    va_end(args);
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    if (!(tmp = und_alloc(sym, len))) return NULL;
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    va_start(args, format);
    for (p = tmp, i = 0; format[i]; i++)
    {
        if (format[i] == '%')
        {
            switch (format[++i])
            {
            case 's':
                t = va_arg(args, char*);
                if (t)
                {
                    sz = strlen(t);
                    memcpy(p, t, sz);
                    p += sz;
                }
                break;
            case 'c':
                *p++ = (char)va_arg(args, int);
                break;
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            default: i--; /* fall through */
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            case '%': *p++ = '%'; break;
            }
        }
        else *p++ = format[i];
    }
    va_end(args);
    *p = '\0';
    return tmp;
}

/* forward declaration */
static BOOL demangle_datatype(struct parsed_symbol* sym, struct datatype_t* ct,
                              struct array* pmt, BOOL in_args);

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static const char* get_number(struct parsed_symbol* sym)
{
    char*       ptr;
    BOOL        sgn = FALSE;

    if (*sym->current == '?')
    {
        sgn = TRUE;
        sym->current++;
    }
    if (*sym->current >= '0' && *sym->current <= '8')
    {
        ptr = und_alloc(sym, 3);
        if (sgn) ptr[0] = '-';
        ptr[sgn ? 1 : 0] = *sym->current + 1;
        ptr[sgn ? 2 : 1] = '\0';
        sym->current++;
    }
    else if (*sym->current == '9')
    {
        ptr = und_alloc(sym, 4);
        if (sgn) ptr[0] = '-';
        ptr[sgn ? 1 : 0] = '1';
        ptr[sgn ? 2 : 1] = '0';
        ptr[sgn ? 3 : 2] = '\0';
        sym->current++;
    }
    else if (*sym->current >= 'A' && *sym->current <= 'P')
    {
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        int ret = 0;
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        while (*sym->current >= 'A' && *sym->current <= 'P')
        {
            ret *= 16;
            ret += *sym->current++ - 'A';
        }
        if (*sym->current != '@') return NULL;

        ptr = und_alloc(sym, 17);
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        sprintf(ptr, "%s%u", sgn ? "-" : "", ret);
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        sym->current++;
    }
    else return NULL;
    return ptr;
}

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/******************************************************************
 *		get_args
 * Parses a list of function/method arguments, creates a string corresponding
 * to the arguments' list.
 */
static char* get_args(struct parsed_symbol* sym, struct array* pmt_ref, BOOL z_term, 
                      char open_char, char close_char)

{
    struct datatype_t   ct;
    struct array        arg_collect;
    char*               args_str = NULL;
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    char*               last;
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    unsigned int        i;
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    str_array_init(&arg_collect);

    /* Now come the function arguments */
    while (*sym->current)
    {
        /* Decode each data type and append it to the argument list */
        if (*sym->current == '@')
        {
            sym->current++;
            break;
        }
        if (!demangle_datatype(sym, &ct, pmt_ref, TRUE))
            return NULL;
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        /* 'void' terminates an argument list in a function */
        if (z_term && !strcmp(ct.left, "void")) break;
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        if (!str_array_push(sym, str_printf(sym, "%s%s", ct.left, ct.right), -1,
                            &arg_collect))
            return NULL;
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        if (!strcmp(ct.left, "...")) break;
    }
    /* Functions are always terminated by 'Z'. If we made it this far and
     * don't find it, we have incorrectly identified a data type.
     */
    if (z_term && *sym->current++ != 'Z') return NULL;

    if (arg_collect.num == 0 || 
        (arg_collect.num == 1 && !strcmp(arg_collect.elts[0], "void")))        
        return str_printf(sym, "%cvoid%c", open_char, close_char);
    for (i = 1; i < arg_collect.num; i++)
    {
        args_str = str_printf(sym, "%s,%s", args_str, arg_collect.elts[i]);
    }

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    last = args_str ? args_str : arg_collect.elts[0];
    if (close_char == '>' && last[strlen(last) - 1] == '>')
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        args_str = str_printf(sym, "%c%s%s %c", 
                              open_char, arg_collect.elts[0], args_str, close_char);
    else
        args_str = str_printf(sym, "%c%s%s%c", 
                              open_char, arg_collect.elts[0], args_str, close_char);
    
    return args_str;
}

/******************************************************************
 *		get_modifier
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 * Parses the type modifier. Always returns static strings.
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 */
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static BOOL get_modifier(struct parsed_symbol *sym, const char **ret, const char **ptr_modif)
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{
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    *ptr_modif = NULL;
    if (*sym->current == 'E')
    {
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        if (!(sym->flags & UNDNAME_NO_MS_KEYWORDS))
        {
            *ptr_modif = "__ptr64";
            if (sym->flags & UNDNAME_NO_LEADING_UNDERSCORES)
                *ptr_modif = *ptr_modif + 2;
        }
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        sym->current++;
    }
    switch (*sym->current++)
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    {
    case 'A': *ret = NULL; break;
    case 'B': *ret = "const"; break;
    case 'C': *ret = "volatile"; break;
    case 'D': *ret = "const volatile"; break;
    default: return FALSE;
    }
    return TRUE;
}

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static BOOL get_modified_type(struct datatype_t *ct, struct parsed_symbol* sym,
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                              struct array *pmt_ref, char modif, BOOL in_args)
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{
    const char* modifier;
    const char* str_modif;
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    const char *ptr_modif = "";

    if (*sym->current == 'E')
    {
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        if (!(sym->flags & UNDNAME_NO_MS_KEYWORDS))
        {
            if (sym->flags & UNDNAME_NO_LEADING_UNDERSCORES)
                ptr_modif = " ptr64";
            else
                ptr_modif = " __ptr64";
        }
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        sym->current++;
    }
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    switch (modif)
    {
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    case 'A': str_modif = str_printf(sym, " &%s", ptr_modif); break;
    case 'B': str_modif = str_printf(sym, " &%s volatile", ptr_modif); break;
    case 'P': str_modif = str_printf(sym, " *%s", ptr_modif); break;
    case 'Q': str_modif = str_printf(sym, " *%s const", ptr_modif); break;
    case 'R': str_modif = str_printf(sym, " *%s volatile", ptr_modif); break;
    case 'S': str_modif = str_printf(sym, " *%s const volatile", ptr_modif); break;
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    case '?': str_modif = ""; break;
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    default: return FALSE;
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    }

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    if (get_modifier(sym, &modifier, &ptr_modif))
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    {
        unsigned            mark = sym->stack.num;
        struct datatype_t   sub_ct;

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        /* multidimensional arrays */
        if (*sym->current == 'Y')
        {
            const char* n1;
            int num;

            sym->current++;
            if (!(n1 = get_number(sym))) return FALSE;
            num = atoi(n1);

            if (str_modif[0] == ' ' && !modifier)
                str_modif++;

            if (modifier)
            {
                str_modif = str_printf(sym, " (%s%s)", modifier, str_modif);
                modifier = NULL;
            }
            else
                str_modif = str_printf(sym, " (%s)", str_modif);

            while (num--)
                str_modif = str_printf(sym, "%s[%s]", str_modif, get_number(sym));
        }

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        /* Recurse to get the referred-to type */
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        if (!demangle_datatype(sym, &sub_ct, pmt_ref, FALSE))
            return FALSE;
        if (modifier)
            ct->left = str_printf(sym, "%s %s%s", sub_ct.left, modifier, str_modif );
        else
        {
            /* don't insert a space between duplicate '*' */
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            if (!in_args && str_modif[0] && str_modif[1] == '*' && sub_ct.left[strlen(sub_ct.left)-1] == '*')
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                str_modif++;
            ct->left = str_printf(sym, "%s%s", sub_ct.left, str_modif );
        }
        ct->right = sub_ct.right;
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        sym->stack.num = mark;
    }
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    return TRUE;
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}

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/******************************************************************
 *             get_literal_string
 * Gets the literal name from the current position in the mangled
 * symbol to the first '@' character. It pushes the parsed name to
 * the symbol names stack and returns a pointer to it or NULL in
 * case of an error.
 */
static char* get_literal_string(struct parsed_symbol* sym)
{
    const char *ptr = sym->current;

    do {
        if (!((*sym->current >= 'A' && *sym->current <= 'Z') ||
              (*sym->current >= 'a' && *sym->current <= 'z') ||
              (*sym->current >= '0' && *sym->current <= '9') ||
              *sym->current == '_' || *sym->current == '$')) {
            TRACE("Failed at '%c' in %s\n", *sym->current, ptr);
            return NULL;
        }
    } while (*++sym->current != '@');
    sym->current++;
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    if (!str_array_push(sym, ptr, sym->current - 1 - ptr, &sym->names))
        return NULL;
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    return str_array_get_ref(&sym->names, sym->names.num - sym->names.start - 1);
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}

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/******************************************************************
 *		get_template_name
 * Parses a name with a template argument list and returns it as
 * a string.
 * In a template argument list the back reference to the names
 * table is separately created. '0' points to the class component
 * name with the template arguments.  We use the same stack array
 * to hold the names but save/restore the stack state before/after
 * parsing the template argument list.
 */
static char* get_template_name(struct parsed_symbol* sym)
{
    char *name, *args;
    unsigned num_mark = sym->names.num;
    unsigned start_mark = sym->names.start;
    unsigned stack_mark = sym->stack.num;
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    struct array array_pmt;
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    sym->names.start = sym->names.num;
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    if (!(name = get_literal_string(sym))) {
        sym->names.start = start_mark;
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        return FALSE;
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    }
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    str_array_init(&array_pmt);
    args = get_args(sym, &array_pmt, FALSE, '<', '>');
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    if (args != NULL)
        name = str_printf(sym, "%s%s", name, args);
    sym->names.num = num_mark;
    sym->names.start = start_mark;
    sym->stack.num = stack_mark;
    return name;
}

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/******************************************************************
 *		get_class
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 * Parses class as a list of parent-classes, terminated by '@' and stores the
 * result in 'a' array. Each parent-classes, as well as the inner element
 * (either field/method name or class name), are represented in the mangled
 * name by a literal name ([a-zA-Z0-9_]+ terminated by '@') or a back reference
 * ([0-9]) or a name with template arguments ('?$' literal name followed by the
 * template argument list). The class name components appear in the reverse
 * order in the mangled name, e.g aaa@bbb@ccc@@ will be demangled to
 * ccc::bbb::aaa
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 * For each of these class name components a string will be allocated in the
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 * array.
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 */
static BOOL get_class(struct parsed_symbol* sym)
{
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    const char* name = NULL;
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    while (*sym->current != '@')
    {
        switch (*sym->current)
        {
        case '\0': return FALSE;

        case '0': case '1': case '2': case '3':
        case '4': case '5': case '6': case '7':
        case '8': case '9':
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            name = str_array_get_ref(&sym->names, *sym->current++ - '0');
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            break;
        case '?':
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            switch (*++sym->current)
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            {
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            case '$':
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                sym->current++;
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                if ((name = get_template_name(sym)) &&
                    !str_array_push(sym, name, -1, &sym->names))
                    return FALSE;
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                break;
            case '?':
                {
                    struct array stack = sym->stack;
                    unsigned int start = sym->names.start;
                    unsigned int num = sym->names.num;

                    str_array_init( &sym->stack );
                    if (symbol_demangle( sym )) name = str_printf( sym, "`%s'", sym->result );
                    sym->names.start = start;
                    sym->names.num = num;
                    sym->stack = stack;
                }
                break;
            default:
                if (!(name = get_number( sym ))) return FALSE;
                name = str_printf( sym, "`%s'", name );
                break;
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            }
            break;
        default:
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            name = get_literal_string(sym);
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            break;
        }
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        if (!name || !str_array_push(sym, name, -1, &sym->stack))
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            return FALSE;
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    }
    sym->current++;
    return TRUE;
}

/******************************************************************
 *		get_class_string
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 * From an array collected by get_class in sym->stack, constructs the
 * corresponding (allocated) string
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 */
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static char* get_class_string(struct parsed_symbol* sym, int start)
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{
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    int          i;
    unsigned int len, sz;
    char*        ret;
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    struct array *a = &sym->stack;
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    for (len = 0, i = start; i < a->num; i++)
    {
        assert(a->elts[i]);
        len += 2 + strlen(a->elts[i]);
    }
    if (!(ret = und_alloc(sym, len - 1))) return NULL;
    for (len = 0, i = a->num - 1; i >= start; i--)
    {
        sz = strlen(a->elts[i]);
        memcpy(ret + len, a->elts[i], sz);
        len += sz;
        if (i > start)
        {
            ret[len++] = ':';
            ret[len++] = ':';
        }
    }
    ret[len] = '\0';
    return ret;
}

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/******************************************************************
 *            get_class_name
 * Wrapper around get_class and get_class_string.
 */
static char* get_class_name(struct parsed_symbol* sym)
{
    unsigned    mark = sym->stack.num;
    char*       s = NULL;

    if (get_class(sym))
        s = get_class_string(sym, mark);
    sym->stack.num = mark;
    return s;
}

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/******************************************************************
 *		get_calling_convention
 * Returns a static string corresponding to the calling convention described
 * by char 'ch'. Sets export to TRUE iff the calling convention is exported.
 */
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static BOOL get_calling_convention(char ch, const char** call_conv,
                                   const char** exported, unsigned flags)
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{
    *call_conv = *exported = NULL;

    if (!(flags & (UNDNAME_NO_MS_KEYWORDS | UNDNAME_NO_ALLOCATION_LANGUAGE)))
    {
        if (flags & UNDNAME_NO_LEADING_UNDERSCORES)
        {
            if (((ch - 'A') % 2) == 1) *exported = "dll_export ";
            switch (ch)
            {
            case 'A': case 'B': *call_conv = "cdecl"; break;
            case 'C': case 'D': *call_conv = "pascal"; break;
            case 'E': case 'F': *call_conv = "thiscall"; break;
            case 'G': case 'H': *call_conv = "stdcall"; break;
            case 'I': case 'J': *call_conv = "fastcall"; break;
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            case 'K': case 'L': break;
            case 'M': *call_conv = "clrcall"; break;
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            default: ERR("Unknown calling convention %c\n", ch); return FALSE;
            }
        }
        else
        {
            if (((ch - 'A') % 2) == 1) *exported = "__dll_export ";
            switch (ch)
            {
            case 'A': case 'B': *call_conv = "__cdecl"; break;
            case 'C': case 'D': *call_conv = "__pascal"; break;
            case 'E': case 'F': *call_conv = "__thiscall"; break;
            case 'G': case 'H': *call_conv = "__stdcall"; break;
            case 'I': case 'J': *call_conv = "__fastcall"; break;
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            case 'K': case 'L': break;
            case 'M': *call_conv = "__clrcall"; break;
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            default: ERR("Unknown calling convention %c\n", ch); return FALSE;
            }
        }
    }
    return TRUE;
}

/*******************************************************************
 *         get_simple_type
 * Return a string containing an allocated string for a simple data type
 */
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static const char* get_simple_type(char c)
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{
    const char* type_string;
    
    switch (c)
    {
    case 'C': type_string = "signed char"; break;
    case 'D': type_string = "char"; break;
    case 'E': type_string = "unsigned char"; break;
    case 'F': type_string = "short"; break;
    case 'G': type_string = "unsigned short"; break;
    case 'H': type_string = "int"; break;
    case 'I': type_string = "unsigned int"; break;
    case 'J': type_string = "long"; break;
    case 'K': type_string = "unsigned long"; break;
    case 'M': type_string = "float"; break;
    case 'N': type_string = "double"; break;
    case 'O': type_string = "long double"; break;
    case 'X': type_string = "void"; break;
    case 'Z': type_string = "..."; break;
    default:  type_string = NULL; break;
    }
    return type_string;
}
756

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/*******************************************************************
Austin English's avatar
Austin English committed
758
 *         get_extended_type
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 * Return a string containing an allocated string for a simple data type
 */
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static const char* get_extended_type(char c)
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{
    const char* type_string;
    
    switch (c)
    {
    case 'D': type_string = "__int8"; break;
    case 'E': type_string = "unsigned __int8"; break;
    case 'F': type_string = "__int16"; break;
    case 'G': type_string = "unsigned __int16"; break;
    case 'H': type_string = "__int32"; break;
    case 'I': type_string = "unsigned __int32"; break;
    case 'J': type_string = "__int64"; break;
    case 'K': type_string = "unsigned __int64"; break;
    case 'L': type_string = "__int128"; break;
    case 'M': type_string = "unsigned __int128"; break;
    case 'N': type_string = "bool"; break;
    case 'W': type_string = "wchar_t"; break;
    default:  type_string = NULL; break;
    }
    return type_string;
}

/*******************************************************************
 *         demangle_datatype
 *
 * Attempt to demangle a C++ data type, which may be datatype.
 * a datatype type is made up of a number of simple types. e.g:
 * char** = (pointer to (pointer to (char)))
 */
static BOOL demangle_datatype(struct parsed_symbol* sym, struct datatype_t* ct,
                              struct array* pmt_ref, BOOL in_args)
{
    char                dt;
    BOOL                add_pmt = TRUE;

    assert(ct);
    ct->left = ct->right = NULL;
    
    switch (dt = *sym->current++)
    {
    case '_':
        /* MS type: __int8,__int16 etc */
804
        ct->left = get_extended_type(*sym->current++);
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        break;
    case 'C': case 'D': case 'E': case 'F': case 'G':
    case 'H': case 'I': case 'J': case 'K': case 'M':
    case 'N': case 'O': case 'X': case 'Z':
        /* Simple data types */
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        ct->left = get_simple_type(dt);
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        add_pmt = FALSE;
        break;
    case 'T': /* union */
    case 'U': /* struct */
    case 'V': /* class */
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    case 'Y': /* cointerface */
        /* Class/struct/union/cointerface */
818 819 820 821
        {
            const char* struct_name = NULL;
            const char* type_name = NULL;

822 823
            if (!(struct_name = get_class_name(sym)))
                goto done;
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            if (!(sym->flags & UNDNAME_NO_COMPLEX_TYPE)) 
            {
                switch (dt)
                {
                case 'T': type_name = "union ";  break;
                case 'U': type_name = "struct "; break;
                case 'V': type_name = "class ";  break;
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                case 'Y': type_name = "cointerface "; break;
832 833 834 835 836 837 838
                }
            }
            ct->left = str_printf(sym, "%s%s", type_name, struct_name);
        }
        break;
    case '?':
        /* not all the time is seems */
839 840 841 842 843 844 845 846
        if (in_args)
        {
            const char*   ptr;
            if (!(ptr = get_number(sym))) goto done;
            ct->left = str_printf(sym, "`template-parameter-%s'", ptr);
        }
        else
        {
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            if (!get_modified_type(ct, sym, pmt_ref, '?', in_args)) goto done;
848
        }
849
        break;
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    case 'A': /* reference */
    case 'B': /* volatile reference */
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        if (!get_modified_type(ct, sym, pmt_ref, dt, in_args)) goto done;
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        break;
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    case 'Q': /* const pointer */
    case 'R': /* volatile pointer */
    case 'S': /* const volatile pointer */
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        if (!get_modified_type(ct, sym, pmt_ref, in_args ? dt : 'P', in_args)) goto done;
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        break;
    case 'P': /* Pointer */
        if (isdigit(*sym->current))
	{
862 863 864 865 866
            /* FIXME:
             *   P6 = Function pointer
             *   P8 = Member function pointer
             *   others who knows.. */
            if (*sym->current == '8')
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            {
                char*                   args = NULL;
                const char*             call_conv;
                const char*             exported;
                struct datatype_t       sub_ct;
                unsigned                mark = sym->stack.num;
873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910
                const char*             class;
                const char*             modifier;
                const char*             ptr_modif;

                sym->current++;

                if (!(class = get_class_name(sym)))
                    goto done;
                if (!get_modifier(sym, &modifier, &ptr_modif))
                    goto done;
                if (modifier)
                    modifier = str_printf(sym, "%s %s", modifier, ptr_modif);
                else if(ptr_modif[0])
                    modifier = str_printf(sym, " %s", ptr_modif);
                if (!get_calling_convention(*sym->current++,
                            &call_conv, &exported,
                            sym->flags & ~UNDNAME_NO_ALLOCATION_LANGUAGE))
                    goto done;
                if (!demangle_datatype(sym, &sub_ct, pmt_ref, FALSE))
                    goto done;

                args = get_args(sym, pmt_ref, TRUE, '(', ')');
                if (!args) goto done;
                sym->stack.num = mark;

                ct->left  = str_printf(sym, "%s%s (%s %s::*",
                        sub_ct.left, sub_ct.right, call_conv, class);
                ct->right = str_printf(sym, ")%s%s", args, modifier);
            }
            else if (*sym->current == '6')
            {
                char*                   args = NULL;
                const char*             call_conv;
                const char*             exported;
                struct datatype_t       sub_ct;
                unsigned                mark = sym->stack.num;

                sym->current++;
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912
                if (!get_calling_convention(*sym->current++,
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                                            &call_conv, &exported, 
                                            sym->flags & ~UNDNAME_NO_ALLOCATION_LANGUAGE) ||
                    !demangle_datatype(sym, &sub_ct, pmt_ref, FALSE))
                    goto done;

                args = get_args(sym, pmt_ref, TRUE, '(', ')');
                if (!args) goto done;
                sym->stack.num = mark;

                ct->left  = str_printf(sym, "%s%s (%s*", 
                                       sub_ct.left, sub_ct.right, call_conv);
                ct->right = str_printf(sym, ")%s", args);
            }
            else goto done;
	}
928
	else if (!get_modified_type(ct, sym, pmt_ref, 'P', in_args)) goto done;
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        break;
    case 'W':
        if (*sym->current == '4')
        {
            char*               enum_name;
            sym->current++;
935 936
            if (!(enum_name = get_class_name(sym)))
                goto done;
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            if (sym->flags & UNDNAME_NO_COMPLEX_TYPE)
                ct->left = enum_name;
            else
                ct->left = str_printf(sym, "enum %s", enum_name);
        }
        else goto done;
        break;
    case '0': case '1': case '2': case '3': case '4':
    case '5': case '6': case '7': case '8': case '9':
        /* Referring back to previously parsed type */
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        /* left and right are pushed as two separate strings */
        ct->left = str_array_get_ref(pmt_ref, (dt - '0') * 2);
        ct->right = str_array_get_ref(pmt_ref, (dt - '0') * 2 + 1);
950 951 952 953
        if (!ct->left) goto done;
        add_pmt = FALSE;
        break;
    case '$':
954
        switch (*sym->current++)
955
        {
956 957 958 959
        case '0':
            if (!(ct->left = get_number(sym))) goto done;
            break;
        case 'D':
960
            {
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                const char*   ptr;
                if (!(ptr = get_number(sym))) goto done;
                ct->left = str_printf(sym, "`template-parameter%s'", ptr);
964
            }
965 966
            break;
        case 'F':
967
            {
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                const char*   p1;
                const char*   p2;
                if (!(p1 = get_number(sym))) goto done;
                if (!(p2 = get_number(sym))) goto done;
                ct->left = str_printf(sym, "{%s,%s}", p1, p2);
973
            }
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            break;
        case 'G':
            {
                const char*   p1;
                const char*   p2;
                const char*   p3;
                if (!(p1 = get_number(sym))) goto done;
                if (!(p2 = get_number(sym))) goto done;
                if (!(p3 = get_number(sym))) goto done;
                ct->left = str_printf(sym, "{%s,%s,%s}", p1, p2, p3);
            }
            break;
        case 'Q':
            {
                const char*   ptr;
                if (!(ptr = get_number(sym))) goto done;
                ct->left = str_printf(sym, "`non-type-template-parameter%s'", ptr);
            }
            break;
993
        case '$':
994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024
            if (*sym->current == 'B')
            {
                unsigned            mark = sym->stack.num;
                struct datatype_t   sub_ct;
                const char*         arr = NULL;
                sym->current++;

                /* multidimensional arrays */
                if (*sym->current == 'Y')
                {
                    const char* n1;
                    int num;

                    sym->current++;
                    if (!(n1 = get_number(sym))) goto done;
                    num = atoi(n1);

                    while (num--)
                        arr = str_printf(sym, "%s[%s]", arr, get_number(sym));
                }

                if (!demangle_datatype(sym, &sub_ct, pmt_ref, FALSE)) goto done;

                if (arr)
                    ct->left = str_printf(sym, "%s %s", sub_ct.left, arr);
                else
                    ct->left = sub_ct.left;
                ct->right = sub_ct.right;
                sym->stack.num = mark;
            }
            else if (*sym->current == 'C')
1025
            {
1026
                const char *ptr, *ptr_modif;
1027 1028

                sym->current++;
1029
                if (!get_modifier(sym, &ptr, &ptr_modif)) goto done;
1030 1031 1032 1033
                if (!demangle_datatype(sym, ct, pmt_ref, in_args)) goto done;
                ct->left = str_printf(sym, "%s %s", ct->left, ptr);
            }
            break;
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        }
        break;
    default :
        ERR("Unknown type %c\n", dt);
        break;
    }
    if (add_pmt && pmt_ref && in_args)
1041 1042
    {
        /* left and right are pushed as two separate strings */
1043 1044 1045
        if (!str_array_push(sym, ct->left ? ct->left : "", -1, pmt_ref) ||
            !str_array_push(sym, ct->right ? ct->right : "", -1, pmt_ref))
            return FALSE;
1046
    }
1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061
done:
    
    return ct->left != NULL;
}

/******************************************************************
 *		handle_data
 * Does the final parsing and handling for a variable or a field in
 * a class.
 */
static BOOL handle_data(struct parsed_symbol* sym)
{
    const char*         access = NULL;
    const char*         member_type = NULL;
    const char*         modifier = NULL;
1062
    const char*         ptr_modif;
1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095
    struct datatype_t   ct;
    char*               name = NULL;
    BOOL                ret = FALSE;

    /* 0 private static
     * 1 protected static
     * 2 public static
     * 3 private non-static
     * 4 protected non-static
     * 5 public non-static
     * 6 ?? static
     * 7 ?? static
     */

    if (!(sym->flags & UNDNAME_NO_ACCESS_SPECIFIERS))
    {
        /* we only print the access for static members */
        switch (*sym->current)
        {
        case '0': access = "private: "; break;
        case '1': access = "protected: "; break;
        case '2': access = "public: "; break;
        } 
    }

    if (!(sym->flags & UNDNAME_NO_MEMBER_TYPE))
    {
        if (*sym->current >= '0' && *sym->current <= '2')
            member_type = "static ";
    }

    name = get_class_string(sym, 0);

1096
    switch (*sym->current++)
1097 1098 1099 1100 1101
    {
    case '0': case '1': case '2':
    case '3': case '4': case '5':
        {
            unsigned mark = sym->stack.num;
1102 1103 1104 1105 1106
            struct array pmt;

            str_array_init(&pmt);

            if (!demangle_datatype(sym, &ct, &pmt, FALSE)) goto done;
1107 1108 1109
            if (!get_modifier(sym, &modifier, &ptr_modif)) goto done;
            if (modifier && ptr_modif) modifier = str_printf(sym, "%s %s", modifier, ptr_modif);
            else if (!modifier) modifier = ptr_modif;
1110 1111 1112 1113 1114 1115
            sym->stack.num = mark;
        }
        break;
    case '6' : /* compiler generated static */
    case '7' : /* compiler generated static */
        ct.left = ct.right = NULL;
1116
        if (!get_modifier(sym, &modifier, &ptr_modif)) goto done;
1117 1118 1119 1120
        if (*sym->current != '@')
        {
            char*       cls = NULL;

1121 1122
            if (!(cls = get_class_name(sym)))
                goto done;
1123 1124 1125
            ct.right = str_printf(sym, "{for `%s'}", cls);
        }
        break;
1126 1127 1128 1129
    case '8':
    case '9':
        modifier = ct.left = ct.right = NULL;
        break;
1130 1131 1132
    default: goto done;
    }
    if (sym->flags & UNDNAME_NAME_ONLY) ct.left = ct.right = modifier = NULL;
1133

1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149
    sym->result = str_printf(sym, "%s%s%s%s%s%s%s%s", access,
                             member_type, ct.left, 
                             modifier && ct.left ? " " : NULL, modifier, 
                             modifier || ct.left ? " " : NULL, name, ct.right);
    ret = TRUE;
done:
    return ret;
}

/******************************************************************
 *		handle_method
 * Does the final parsing and handling for a function or a method in
 * a class.
 */
static BOOL handle_method(struct parsed_symbol* sym, BOOL cast_op)
{
1150
    char                accmem;
1151
    const char*         access = NULL;
1152
    int                 access_id = -1;
1153 1154 1155 1156 1157 1158 1159
    const char*         member_type = NULL;
    struct datatype_t   ct_ret;
    const char*         call_conv;
    const char*         modifier = NULL;
    const char*         exported;
    const char*         args_str = NULL;
    const char*         name = NULL;
1160
    BOOL                ret = FALSE, has_args = TRUE, has_ret = TRUE;
1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190
    unsigned            mark;
    struct array        array_pmt;

    /* FIXME: why 2 possible letters for each option?
     * 'A' private:
     * 'B' private:
     * 'C' private: static
     * 'D' private: static
     * 'E' private: virtual
     * 'F' private: virtual
     * 'G' private: thunk
     * 'H' private: thunk
     * 'I' protected:
     * 'J' protected:
     * 'K' protected: static
     * 'L' protected: static
     * 'M' protected: virtual
     * 'N' protected: virtual
     * 'O' protected: thunk
     * 'P' protected: thunk
     * 'Q' public:
     * 'R' public:
     * 'S' public: static
     * 'T' public: static
     * 'U' public: virtual
     * 'V' public: virtual
     * 'W' public: thunk
     * 'X' public: thunk
     * 'Y'
     * 'Z'
1191 1192 1193 1194 1195 1196
     * "$0" private: thunk vtordisp
     * "$1" private: thunk vtordisp
     * "$2" protected: thunk vtordisp
     * "$3" protected: thunk vtordisp
     * "$4" public: thunk vtordisp
     * "$5" public: thunk vtordisp
1197
     * "$B" vcall thunk
1198
     * "$R" thunk vtordispex
1199
     */
1200
    accmem = *sym->current++;
1201 1202
    if (accmem == '$')
    {
1203 1204
        if (*sym->current >= '0' && *sym->current <= '5')
            access_id = (*sym->current - '0') / 2;
1205 1206
        else if (*sym->current == 'R')
            access_id = (sym->current[1] - '0') / 2;
1207 1208
        else if (*sym->current != 'B')
            goto done;
1209
    }
1210 1211 1212 1213
    else if (accmem >= 'A' && accmem <= 'Z')
        access_id = (accmem - 'A') / 8;
    else
        goto done;
1214

1215
    switch (access_id)
1216
    {
1217 1218 1219
    case 0: access = "private: "; break;
    case 1: access = "protected: "; break;
    case 2: access = "public: "; break;
1220
    }
1221 1222 1223
    if (accmem == '$' || (accmem - 'A') % 8 == 6 || (accmem - 'A') % 8 == 7)
        access = str_printf(sym, "[thunk]:%s", access ? access : " ");

1224
    if (accmem == '$' && *sym->current != 'B')
1225 1226
        member_type = "virtual ";
    else if (accmem <= 'X')
1227
    {
1228
        switch ((accmem - 'A') % 8)
1229
        {
1230 1231
        case 2: case 3: member_type = "static "; break;
        case 4: case 5: case 6: case 7: member_type = "virtual "; break;
1232 1233 1234
        }
    }

1235 1236 1237 1238 1239
    if (sym->flags & UNDNAME_NO_ACCESS_SPECIFIERS)
        access = NULL;
    if (sym->flags & UNDNAME_NO_MEMBER_TYPE)
        member_type = NULL;

1240 1241
    name = get_class_string(sym, 0);

1242
    if (accmem == '$' && *sym->current == 'B') /* vcall thunk */
1243
    {
1244 1245 1246 1247
        const char *n;

        sym->current++;
        n = get_number(sym);
1248 1249 1250 1251 1252 1253

        if(!n || *sym->current++ != 'A') goto done;
        name = str_printf(sym, "%s{%s,{flat}}' }'", name, n);
        has_args = FALSE;
        has_ret = FALSE;
    }
1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266
    else if (accmem == '$' && *sym->current == 'R') /* vtordispex thunk */
    {
        const char *n1, *n2, *n3, *n4;

        sym->current += 2;
        n1 = get_number(sym);
        n2 = get_number(sym);
        n3 = get_number(sym);
        n4 = get_number(sym);

        if(!n1 || !n2 || !n3 || !n4) goto done;
        name = str_printf(sym, "%s`vtordispex{%s,%s,%s,%s}' ", name, n1, n2, n3, n4);
    }
1267
    else if (accmem == '$') /* vtordisp thunk */
1268
    {
1269 1270 1271 1272 1273
        const char *n1, *n2;

        sym->current++;
        n1 = get_number(sym);
        n2 = get_number(sym);
1274 1275 1276 1277 1278

        if (!n1 || !n2) goto done;
        name = str_printf(sym, "%s`vtordisp{%s,%s}' ", name, n1, n2);
    }
    else if ((accmem - 'A') % 8 == 6 || (accmem - 'A') % 8 == 7) /* a thunk */
1279 1280
        name = str_printf(sym, "%s`adjustor{%s}' ", name, get_number(sym));

1281 1282
    if (has_args && (accmem == '$' ||
                (accmem <= 'X' && (accmem - 'A') % 8 != 2 && (accmem - 'A') % 8 != 3)))
1283
    {
1284 1285 1286 1287 1288
        const char *ptr_modif;
        /* Implicit 'this' pointer */
        /* If there is an implicit this pointer, const modifier follows */
        if (!get_modifier(sym, &modifier, &ptr_modif)) goto done;
        if (modifier || ptr_modif) modifier = str_printf(sym, "%s %s", modifier, ptr_modif);
1289 1290
    }

1291 1292
    if (!get_calling_convention(*sym->current++, &call_conv, &exported,
                                sym->flags))
1293 1294 1295 1296 1297
        goto done;

    str_array_init(&array_pmt);

    /* Return type, or @ if 'void' */
1298
    if (has_ret && *sym->current == '@')
1299 1300 1301 1302 1303
    {
        ct_ret.left = "void";
        ct_ret.right = NULL;
        sym->current++;
    }
1304
    else if (has_ret)
1305 1306 1307 1308
    {
        if (!demangle_datatype(sym, &ct_ret, &array_pmt, FALSE))
            goto done;
    }
1309
    if (!has_ret || sym->flags & UNDNAME_NO_FUNCTION_RETURNS)
1310 1311 1312 1313 1314 1315 1316 1317
        ct_ret.left = ct_ret.right = NULL;
    if (cast_op)
    {
        name = str_printf(sym, "%s%s%s", name, ct_ret.left, ct_ret.right);
        ct_ret.left = ct_ret.right = NULL;
    }

    mark = sym->stack.num;
1318
    if (has_args && !(args_str = get_args(sym, &array_pmt, TRUE, '(', ')'))) goto done;
1319
    if (sym->flags & UNDNAME_NAME_ONLY) args_str = modifier = NULL;
1320
    if (sym->flags & UNDNAME_NO_THISTYPE) modifier = NULL;
1321 1322 1323 1324 1325
    sym->stack.num = mark;

    /* Note: '()' after 'Z' means 'throws', but we don't care here
     * Yet!!! FIXME
     */
1326
    sym->result = str_printf(sym, "%s%s%s%s%s%s%s%s%s%s%s",
1327
                             access, member_type, ct_ret.left,
1328 1329
                             (ct_ret.left && !ct_ret.right) ? " " : NULL,
                             call_conv, call_conv ? " " : NULL, exported,
1330
                             name, args_str, modifier, ct_ret.right);
1331 1332 1333 1334 1335 1336
    ret = TRUE;
done:
    return ret;
}

/*******************************************************************
1337
 *         symbol_demangle
1338 1339 1340 1341 1342 1343
 * Demangle a C++ linker symbol
 */
static BOOL symbol_demangle(struct parsed_symbol* sym)
{
    BOOL                ret = FALSE;
    unsigned            do_after = 0;
1344
    static CHAR         dashed_null[] = "--null--";
1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358

    /* FIXME seems wrong as name, as it demangles a simple data type */
    if (sym->flags & UNDNAME_NO_ARGUMENTS)
    {
        struct datatype_t   ct;

        if (demangle_datatype(sym, &ct, NULL, FALSE))
        {
            sym->result = str_printf(sym, "%s%s", ct.left, ct.right);
            ret = TRUE;
        }
        goto done;
    }

1359 1360
    /* MS mangled names always begin with '?' */
    if (*sym->current != '?') return FALSE;
1361 1362 1363
    sym->current++;

    /* Then function name or operator code */
1364
    if (*sym->current == '?' && (sym->current[1] != '$' || sym->current[2] == '?'))
1365 1366 1367
    {
        const char* function_name = NULL;

1368 1369 1370 1371 1372 1373
        if (sym->current[1] == '$')
        {
            do_after = 6;
            sym->current += 2;
        }

1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440
        /* C++ operator code (one character, or two if the first is '_') */
        switch (*++sym->current)
        {
        case '0': do_after = 1; break;
        case '1': do_after = 2; break;
        case '2': function_name = "operator new"; break;
        case '3': function_name = "operator delete"; break;
        case '4': function_name = "operator="; break;
        case '5': function_name = "operator>>"; break;
        case '6': function_name = "operator<<"; break;
        case '7': function_name = "operator!"; break;
        case '8': function_name = "operator=="; break;
        case '9': function_name = "operator!="; break;
        case 'A': function_name = "operator[]"; break;
        case 'B': function_name = "operator "; do_after = 3; break;
        case 'C': function_name = "operator->"; break;
        case 'D': function_name = "operator*"; break;
        case 'E': function_name = "operator++"; break;
        case 'F': function_name = "operator--"; break;
        case 'G': function_name = "operator-"; break;
        case 'H': function_name = "operator+"; break;
        case 'I': function_name = "operator&"; break;
        case 'J': function_name = "operator->*"; break;
        case 'K': function_name = "operator/"; break;
        case 'L': function_name = "operator%"; break;
        case 'M': function_name = "operator<"; break;
        case 'N': function_name = "operator<="; break;
        case 'O': function_name = "operator>"; break;
        case 'P': function_name = "operator>="; break;
        case 'Q': function_name = "operator,"; break;
        case 'R': function_name = "operator()"; break;
        case 'S': function_name = "operator~"; break;
        case 'T': function_name = "operator^"; break;
        case 'U': function_name = "operator|"; break;
        case 'V': function_name = "operator&&"; break;
        case 'W': function_name = "operator||"; break;
        case 'X': function_name = "operator*="; break;
        case 'Y': function_name = "operator+="; break;
        case 'Z': function_name = "operator-="; break;
        case '_':
            switch (*++sym->current)
            {
            case '0': function_name = "operator/="; break;
            case '1': function_name = "operator%="; break;
            case '2': function_name = "operator>>="; break;
            case '3': function_name = "operator<<="; break;
            case '4': function_name = "operator&="; break;
            case '5': function_name = "operator|="; break;
            case '6': function_name = "operator^="; break;
            case '7': function_name = "`vftable'"; break;
            case '8': function_name = "`vbtable'"; break;
            case '9': function_name = "`vcall'"; break;
            case 'A': function_name = "`typeof'"; break;
            case 'B': function_name = "`local static guard'"; break;
            case 'C': function_name = "`string'"; do_after = 4; break;
            case 'D': function_name = "`vbase destructor'"; break;
            case 'E': function_name = "`vector deleting destructor'"; break;
            case 'F': function_name = "`default constructor closure'"; break;
            case 'G': function_name = "`scalar deleting destructor'"; break;
            case 'H': function_name = "`vector constructor iterator'"; break;
            case 'I': function_name = "`vector destructor iterator'"; break;
            case 'J': function_name = "`vector vbase constructor iterator'"; break;
            case 'K': function_name = "`virtual displacement map'"; break;
            case 'L': function_name = "`eh vector constructor iterator'"; break;
            case 'M': function_name = "`eh vector destructor iterator'"; break;
            case 'N': function_name = "`eh vector vbase constructor iterator'"; break;
            case 'O': function_name = "`copy constructor closure'"; break;
1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452
            case 'R':
                sym->flags |= UNDNAME_NO_FUNCTION_RETURNS;
                switch (*++sym->current)
                {
                case '0':
                    {
                        struct datatype_t       ct;
                        struct array pmt;

                        sym->current++;
                        str_array_init(&pmt);
                        demangle_datatype(sym, &ct, &pmt, FALSE);
1453 1454
                        if (!demangle_datatype(sym, &ct, NULL, FALSE))
                            goto done;
1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480
                        function_name = str_printf(sym, "%s%s `RTTI Type Descriptor'",
                                                   ct.left, ct.right);
                        sym->current--;
                    }
                    break;
                case '1':
                    {
                        const char* n1, *n2, *n3, *n4;
                        sym->current++;
                        n1 = get_number(sym);
                        n2 = get_number(sym);
                        n3 = get_number(sym);
                        n4 = get_number(sym);
                        sym->current--;
                        function_name = str_printf(sym, "`RTTI Base Class Descriptor at (%s,%s,%s,%s)'",
                                                   n1, n2, n3, n4);
                    }
                    break;
                case '2': function_name = "`RTTI Base Class Array'"; break;
                case '3': function_name = "`RTTI Class Hierarchy Descriptor'"; break;
                case '4': function_name = "`RTTI Complete Object Locator'"; break;
                default:
                    ERR("Unknown RTTI operator: _R%c\n", *sym->current);
                    break;
                }
                break;
1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500
            case 'S': function_name = "`local vftable'"; break;
            case 'T': function_name = "`local vftable constructor closure'"; break;
            case 'U': function_name = "operator new[]"; break;
            case 'V': function_name = "operator delete[]"; break;
            case 'X': function_name = "`placement delete closure'"; break;
            case 'Y': function_name = "`placement delete[] closure'"; break;
            default:
                ERR("Unknown operator: _%c\n", *sym->current);
                return FALSE;
            }
            break;
        default:
            /* FIXME: Other operators */
            ERR("Unknown operator: %c\n", *sym->current);
            return FALSE;
        }
        sym->current++;
        switch (do_after)
        {
        case 1: case 2:
1501 1502
            if (!str_array_push(sym, dashed_null, -1, &sym->stack))
                return FALSE;
1503 1504 1505 1506 1507
            break;
        case 4:
            sym->result = (char*)function_name;
            ret = TRUE;
            goto done;
1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518
        case 6:
            {
                char *args;
                struct array array_pmt;

                str_array_init(&array_pmt);
                args = get_args(sym, &array_pmt, FALSE, '<', '>');
                if (args != NULL) function_name = str_printf(sym, "%s%s", function_name, args);
                sym->names.num = 0;
            }
            /* fall through */
1519
        default:
1520 1521
            if (!str_array_push(sym, function_name, -1, &sym->stack))
                return FALSE;
1522 1523 1524
            break;
        }
    }
1525 1526 1527 1528 1529
    else if (*sym->current == '$')
    {
        /* Strange construct, it's a name with a template argument list
           and that's all. */
        sym->current++;
1530
        ret = (sym->result = get_template_name(sym)) != NULL;
1531 1532
        goto done;
    }
1533 1534
    else if (*sym->current == '?' && sym->current[1] == '$')
        do_after = 5;
1535 1536

    /* Either a class name, or '@' if the symbol is not a class member */
1537
    switch (*sym->current)
1538
    {
1539 1540 1541
    case '@': sym->current++; break;
    case '$': break;
    default:
1542 1543
        /* Class the function is associated with, terminated by '@@' */
        if (!get_class(sym)) goto done;
1544
        break;
1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562
    }

    switch (do_after)
    {
    case 0: default: break;
    case 1: case 2:
        /* it's time to set the member name for ctor & dtor */
        if (sym->stack.num <= 1) goto done;
        if (do_after == 1)
            sym->stack.elts[0] = sym->stack.elts[1];
        else
            sym->stack.elts[0] = str_printf(sym, "~%s", sym->stack.elts[1]);
        /* ctors and dtors don't have return type */
        sym->flags |= UNDNAME_NO_FUNCTION_RETURNS;
        break;
    case 3:
        sym->flags &= ~UNDNAME_NO_FUNCTION_RETURNS;
        break;
1563
    case 5:
1564
        sym->names.start++;
1565
        break;
1566 1567 1568
    }

    /* Function/Data type and access level */
1569
    if (*sym->current >= '0' && *sym->current <= '9')
1570
        ret = handle_data(sym);
1571 1572
    else if ((*sym->current >= 'A' && *sym->current <= 'Z') || *sym->current == '$')
        ret = handle_method(sym, do_after == 3);
1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598
    else ret = FALSE;
done:
    if (ret) assert(sym->result);
    else WARN("Failed at %s\n", sym->current);

    return ret;
}

/*********************************************************************
 *		__unDNameEx (MSVCRT.@)
 *
 * Demangle a C++ identifier.
 *
 * PARAMS
 *  buffer   [O] If not NULL, the place to put the demangled string
 *  mangled  [I] Mangled name of the function
 *  buflen   [I] Length of buffer
 *  memget   [I] Function to allocate memory with
 *  memfree  [I] Function to free memory with
 *  unknown  [?] Unknown, possibly a call back
 *  flags    [I] Flags determining demangled format
 *
 * RETURNS
 *  Success: A string pointing to the unmangled name, allocated with memget.
 *  Failure: NULL.
 */
1599 1600 1601
char* CDECL __unDNameEx(char* buffer, const char* mangled, int buflen,
                        malloc_func_t memget, free_func_t memfree,
                        void* unknown, unsigned short int flags)
1602 1603
{
    struct parsed_symbol        sym;
1604
    const char*                 result;
1605

1606
    TRACE("(%p,%s,%d,%p,%p,%p,%x)\n",
1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622
          buffer, mangled, buflen, memget, memfree, unknown, flags);
    
    /* The flags details is not documented by MS. However, it looks exactly
     * like the UNDNAME_ manifest constants from imagehlp.h and dbghelp.h
     * So, we copied those (on top of the file)
     */
    memset(&sym, 0, sizeof(struct parsed_symbol));
    if (flags & UNDNAME_NAME_ONLY)
        flags |= UNDNAME_NO_FUNCTION_RETURNS | UNDNAME_NO_ACCESS_SPECIFIERS |
            UNDNAME_NO_MEMBER_TYPE | UNDNAME_NO_ALLOCATION_LANGUAGE |
            UNDNAME_NO_COMPLEX_TYPE;

    sym.flags         = flags;
    sym.mem_alloc_ptr = memget;
    sym.mem_free_ptr  = memfree;
    sym.current       = mangled;
1623 1624
    str_array_init( &sym.names );
    str_array_init( &sym.stack );
1625

1626 1627
    result = symbol_demangle(&sym) ? sym.result : mangled;
    if (buffer && buflen)
1628
    {
1629
        lstrcpynA( buffer, result, buflen);
1630 1631 1632 1633 1634
    }
    else
    {
        buffer = memget(strlen(result) + 1);
        if (buffer) strcpy(buffer, result);
1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645
    }

    und_free_all(&sym);

    return buffer;
}


/*********************************************************************
 *		__unDName (MSVCRT.@)
 */
1646 1647 1648
char* CDECL __unDName(char* buffer, const char* mangled, int buflen,
                      malloc_func_t memget, free_func_t memfree,
                      unsigned short int flags)
1649 1650 1651
{
    return __unDNameEx(buffer, mangled, buflen, memget, memfree, NULL, flags);
}