1370 lines
27 KiB
C
1370 lines
27 KiB
C
/* Demangler for GNU C++
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Copyright 1989, 1991 Free Software Foundation, Inc.
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written by James Clark (jjc@jclark.uucp)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* This is for g++ 1.95.03 (November 13 verison). */
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/* This file exports one function
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char *cplus_demangle (const char *name, int mode)
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If NAME is a mangled function name produced by GNU C++, then
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a pointer to a malloced string giving a C++ representation
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of the name will be returned; otherwise NULL will be returned.
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It is the caller's responsibility to free the string which
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is returned.
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If MODE > 0, then ANSI qualifiers such as `const' and `void' are output.
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Otherwise they are not.
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If MODE >= 0, parameters are emitted; otherwise not.
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For example,
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cplus_demangle ("foo__1Ai", 0) => "A::foo(int)"
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cplus_demangle ("foo__1Ai", 1) => "A::foo(int)"
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cplus_demangle ("foo__1Ai", -1) => "A::foo"
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cplus_demangle ("foo__1Afe", 0) => "A::foo(float,...)"
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cplus_demangle ("foo__1Afe", 1) => "A::foo(float,...)"
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cplus_demangle ("foo__1Afe", -1) => "A::foo"
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This file imports xmalloc and xrealloc, which are like malloc and
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realloc except that they generate a fatal error if there is no
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available memory. */
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/* define this if names don't start with _ */
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/* #define nounderscore 1 */
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#include <ansidecl.h>
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#include <sysdep.h>
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#define xmalloc ldmalloc
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#define xrealloc ldrealloc
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#if 0
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/* GDB-specific, FIXME. */
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#include "defs.h"
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#endif
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#define PARAMS(x) EXFUN(,x)
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/* This is '$' on systems where the assembler can deal with that.
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Where the assembler can't, it's '.' (but on many systems '.' is
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used for other things). */
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#if !defined (CPLUS_MARKER)
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#define CPLUS_MARKER '$'
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#endif
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#ifndef __STDC__
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#define const
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#endif
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#ifdef __STDC__
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extern char *cplus_demangle (const char *type, int mode);
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#else
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extern char *cplus_demangle ();
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#endif
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static char **typevec = 0;
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static int ntypes = 0;
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static int typevec_size = 0;
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const static struct optable {
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const char *in;
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const char *out;
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int ansi;
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} optable[] = {
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"nw", " new", 1, /* new (1.92, ansi) */
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"dl", " delete", 1, /* new (1.92, ansi) */
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"new", " new", 0, /* old (1.91, and 1.x) */
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"delete", " delete", 0, /* old (1.91, and 1.x) */
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"as", "=", 1, /* ansi */
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"ne", "!=", 1, /* old, ansi */
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"eq", "==", 1, /* old, ansi */
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"ge", ">=", 1, /* old, ansi */
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"gt", ">", 1, /* old, ansi */
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"le", "<=", 1, /* old, ansi */
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"lt", "<", 1, /* old, ansi */
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"plus", "+", 0, /* old */
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"pl", "+", 1, /* ansi */
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"apl", "+=", 1, /* ansi */
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"minus", "-", 0, /* old */
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"mi", "-", 1, /* ansi */
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"ami", "-=", 1, /* ansi */
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"mult", "*", 0, /* old */
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"ml", "*", 1, /* ansi */
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"aml", "*=", 1, /* ansi */
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"convert", "+", 0, /* old (unary +) */
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"negate", "-", 0, /* old (unary -) */
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"trunc_mod", "%", 0, /* old */
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"md", "%", 1, /* ansi */
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"amd", "%=", 1, /* ansi */
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"trunc_div", "/", 0, /* old */
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"dv", "/", 1, /* ansi */
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"adv", "/=", 1, /* ansi */
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"truth_andif", "&&", 0, /* old */
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"aa", "&&", 1, /* ansi */
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"truth_orif", "||", 0, /* old */
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"oo", "||", 1, /* ansi */
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"truth_not", "!", 0, /* old */
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"nt", "!", 1, /* ansi */
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"postincrement", "++", 0, /* old */
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"pp", "++", 1, /* ansi */
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"postdecrement", "--", 0, /* old */
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"mm", "--", 1, /* ansi */
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"bit_ior", "|", 0, /* old */
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"or", "|", 1, /* ansi */
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"aor", "|=", 1, /* ansi */
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"bit_xor", "^", 0, /* old */
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"er", "^", 1, /* ansi */
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"aer", "^=", 1, /* ansi */
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"bit_and", "&", 0, /* old */
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"ad", "&", 1, /* ansi */
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"aad", "&=", 1, /* ansi */
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"bit_not", "~", 0, /* old */
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"co", "~", 1, /* ansi */
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"call", "()", 0, /* old */
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"cl", "()", 1, /* ansi */
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"alshift", "<<", 0, /* old */
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"ls", "<<", 1, /* ansi */
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"als", "<<=", 1, /* ansi */
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"arshift", ">>", 0, /* old */
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"rs", ">>", 1, /* ansi */
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"ars", ">>=", 1, /* ansi */
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"component", "->", 0, /* old */
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"rf", "->", 1, /* ansi */
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"indirect", "*", 0, /* old */
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"method_call", "->()", 0, /* old */
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"addr", "&", 0, /* old (unary &) */
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"array", "[]", 0, /* old */
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"vc", "[]", 1, /* ansi */
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"compound", ",", 0, /* old */
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"cm", ",", 1, /* ansi */
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"cond", "?:", 0, /* old */
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"cn", "?:", 1, /* psuedo-ansi */
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"max", ">?", 0, /* old */
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"mx", ">?", 1, /* psuedo-ansi */
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"min", "<?", 0, /* old */
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"mn", "<?", 1, /* psuedo-ansi */
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"nop", "", 0, /* old (for operator=) */
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};
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/* Beware: these aren't '\0' terminated. */
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typedef struct string {
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char *b; /* pointer to start of string */
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char *p; /* pointer after last character */
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char *e; /* pointer after end of allocated space */
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} string;
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static void
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string_need PARAMS ((string *, int));
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static void
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string_delete PARAMS ((string *));
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static void
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string_init PARAMS ((string *));
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static void
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string_clear PARAMS ((string *));
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static int
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string_empty PARAMS ((string *));
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static void
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string_append PARAMS ((string *, const char *));
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static void
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string_appends PARAMS ((string *, string *));
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static void
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string_appendn PARAMS ((string *, const char *, int));
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static void
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string_prepend PARAMS ((string *, const char *));
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static void
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string_prependn PARAMS ((string *, const char *, int));
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static int
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get_count PARAMS ((const char **, int *));
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static int
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do_args PARAMS ((const char **, string *, int));
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static int
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do_type PARAMS ((const char **, string *, int));
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static int
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do_arg PARAMS ((const char **, string *, int));
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static void
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munge_function_name PARAMS ((string *, int));
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static void
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remember_type PARAMS ((const char *, int));
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#if 0
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static void
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string_prepends PARAMS ((string *, string *));
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#endif
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/* Takes operator name as e.g. "++" and returns mangled
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operator name (e.g. "postincrement_expr"), or NULL if not found.
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If ARG_MODE == 1, return the ANSI name;
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if ARG_MODE == 0 return the old GNU name. */
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char *
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cplus_mangle_opname (opname, arg_mode)
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char *opname;
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int arg_mode;
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{
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int i, len = strlen (opname);
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if (arg_mode != 0 && arg_mode != 1)
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einfo ("%P%F: invalid arg_mode");
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for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++)
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{
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if (strlen (optable[i].out) == len
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&& arg_mode == optable[i].ansi
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&& memcmp (optable[i].out, opname, len) == 0)
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return (char *)optable[i].in;
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}
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return 0;
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}
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char *
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cplus_demangle (type, arg_mode)
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const char *type;
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int arg_mode;
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{
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string decl;
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int n;
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int success = 0;
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int constructor = 0;
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int destructor = 0;
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int static_type = 0;
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int const_flag = 0;
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int i;
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const char *p;
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#ifndef LONGERNAMES
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const char *premangle;
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#endif
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# define print_ansi_qualifiers (arg_mode > 0)
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# define print_arg_types (arg_mode >= 0)
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if (type == NULL || *type == '\0')
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return NULL;
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#ifndef nounderscore
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if (*type++ != '_')
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return NULL;
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#endif
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p = type;
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while (*p != '\0' && !(*p == '_' && p[1] == '_'))
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p++;
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if (*p == '\0')
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{
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/* destructor */
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if (type[0] == '_' && type[1] == CPLUS_MARKER && type[2] == '_')
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{
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int n;
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char *tem;
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type += 3; /* Get past _$_ at front. */
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while (isdigit (*type))
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/* If there are digits at the front, it's because
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of new 2.0 name mangling. Just skip them. */
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type++;
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n = strlen (type)*2 + 3 + 2 + 1;
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tem = (char *) xmalloc (n);
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strcpy (tem, type);
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strcat (tem, "::~");
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strcat (tem, type);
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if (print_arg_types)
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strcat (tem, "()");
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return tem;
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}
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/* static data member */
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if (*type != '_' && (p = strchr (type, CPLUS_MARKER)) != NULL)
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{
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int n = strlen (type) + 2;
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char *tem = (char *) xmalloc (n);
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memcpy (tem, type, p - type);
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strcpy (tem + (p - type), "::");
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strcpy (tem + (p - type) + 2, p + 1);
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return tem;
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}
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/* virtual table "_vt$" */
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if (type[0] == '_' && type[1] == 'v' && type[2] == 't' && type[3] == CPLUS_MARKER)
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{
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int n = strlen (type + 4) + 14 + 1;
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char *tem = (char *) xmalloc (n);
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strcpy (tem, type + 4);
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strcat (tem, " virtual table");
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return tem;
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}
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return NULL;
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}
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string_init (&decl);
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if (static_type)
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{
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if (!isdigit (p[0]) && ('t' != p[0]))
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{
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string_delete (&decl);
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return NULL;
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}
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}
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else if (p == type)
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{
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if (!isdigit (p[2]) && ('t' != p[2]))
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{
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p += 1;
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while (*p != '\0' && !(*p == '_' && p[1] == '_'))
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p++;
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string_appendn (&decl, type, p - type);
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string_need (&decl, 1);
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*(decl.p) = '\0';
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munge_function_name (&decl, 1);
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if (decl.b[0] == '_')
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{
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string_delete (&decl);
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return NULL;
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}
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else
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p += 2;
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}
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else
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{
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constructor = 1;
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p += 2;
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}
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}
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else
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{
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string_appendn (&decl, type, p - type);
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string_need (&decl, 1);
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*(decl.p) = '\0';
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munge_function_name (&decl, arg_mode);
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p += 2;
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}
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#ifndef LONGERNAMES
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premangle = p;
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#endif
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switch (*p)
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{
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case 'C':
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/* a const member function */
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if (!isdigit (p[1]))
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{
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string_delete (&decl);
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return NULL;
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}
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p += 1;
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const_flag = 1;
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/* fall through */
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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n = 0;
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do
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{
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n *= 10;
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n += *p - '0';
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p += 1;
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}
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while (isdigit (*p));
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if (strlen (p) < n)
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{
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string_delete (&decl);
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return NULL;
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}
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if (constructor || destructor)
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{
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string_appendn (&decl, p, n);
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string_append (&decl, "::");
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if (destructor)
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string_append(&decl, "~");
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string_appendn (&decl, p, n);
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}
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else
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{
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string_prepend (&decl, "::");
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string_prependn (&decl, p, n);
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}
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p += n;
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#ifndef LONGERNAMES
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remember_type (premangle, p - premangle);
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#endif
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if (static_type)
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{
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string_append(&decl, p+1);
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p += strlen(p);
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success = 1;
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}
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else
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success = do_args (&p, &decl, arg_mode);
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if (const_flag && print_arg_types)
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string_append (&decl, " const");
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break;
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case 'F':
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p += 1;
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success = do_args (&p, &decl, arg_mode);
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break;
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/* template additions */
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case 't':
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p += 1;
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{
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int r, i;
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int non_empty = 0;
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string tname;
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string trawname;
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string temp;
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int need_comma = 0;
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string_init(&tname);
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string_init(&trawname);
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/* get template name */
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if (!get_count (&p, &r))
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return 0;
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string_appendn (&tname, p, r);
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string_appendn (&trawname, p, r);
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string_appendn (&trawname, "", 1);
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p += r;
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string_append (&tname, "<");
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/* get size of template parameter list */
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if (!get_count (&p, &r))
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return 0;
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for (i = 0; i < r; i++)
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{
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if (need_comma)
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string_append (&tname, ", ");
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/* Z for type parameters */
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if (*p == 'Z')
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{
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p += 1;
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success = do_type (&p, &temp, arg_mode);
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string_appendn (&temp, "", 1);
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if (success)
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string_append (&tname, temp.b);
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string_delete(&temp);
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if (!success)
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break;
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}
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/* otherwise, value parameter */
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else
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{
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const char *old_p = p;
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int is_pointer = 0;
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int is_real = 0;
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int is_integral = 0;
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int done = 0;
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success = do_type (&p, &temp, arg_mode);
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string_appendn (&temp, "", 1);
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if (success)
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string_append (&tname, temp.b);
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string_delete(&temp);
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if (!success)
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break;
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string_append (&tname, "=");
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while (*old_p && !done)
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{
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switch (*old_p)
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{
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case 'P':
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case 'R':
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done = is_pointer = 1;
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break;
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case 'C': /* const */
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case 'U': /* unsigned */
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case 'V': /* volatile */
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case 'F': /* function */
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case 'M': /* member function */
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case 'O': /* ??? */
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old_p++;
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continue;
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case 'Q': /* repetition of following */
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case 'T': /* remembered type */
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abort();
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break;
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case 'v': /* void */
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abort();
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break;
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case 'x': /* long long */
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case 'l': /* long */
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case 'i': /* int */
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case 's': /* short */
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case 'c': /* char */
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done = is_integral = 1;
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break;
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case 'r': /* long double */
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case 'd': /* double */
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case 'f': /* float */
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done = is_real = 1;
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break;
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default:
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abort();
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|
}
|
|
}
|
|
if (is_integral)
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|
{
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|
if (*p == 'm')
|
|
{
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|
string_appendn (&tname, "-", 1);
|
|
p++;
|
|
}
|
|
while (isdigit (*p))
|
|
{
|
|
string_appendn (&tname, p, 1);
|
|
p++;
|
|
}
|
|
}
|
|
else if (is_real)
|
|
{
|
|
if (*p == 'm')
|
|
{
|
|
string_appendn (&tname, "-", 1);
|
|
p++;
|
|
}
|
|
while (isdigit (*p))
|
|
{
|
|
string_appendn (&tname, p, 1);
|
|
p++;
|
|
}
|
|
if (*p == '.') /* fraction */
|
|
{
|
|
string_appendn (&tname, ".", 1);
|
|
p++;
|
|
while (isdigit (*p))
|
|
{
|
|
string_appendn (&tname, p, 1);
|
|
p++;
|
|
}
|
|
}
|
|
if (*p == 'e') /* exponent */
|
|
{
|
|
string_appendn (&tname, "e", 1);
|
|
p++;
|
|
while (isdigit (*p))
|
|
{
|
|
string_appendn (&tname, p, 1);
|
|
p++;
|
|
}
|
|
}
|
|
}
|
|
else if (is_pointer)
|
|
{
|
|
int symbol_len;
|
|
|
|
if (!get_count (&p, &symbol_len))
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
string_appendn (&tname, p, symbol_len);
|
|
p += symbol_len;
|
|
}
|
|
}
|
|
need_comma = 1;
|
|
}
|
|
string_append (&tname, ">::");
|
|
if (destructor)
|
|
string_append(&tname, "~");
|
|
if (constructor || destructor) {
|
|
string_append (&tname, trawname.b);
|
|
}
|
|
string_delete(&trawname);
|
|
|
|
if (!success) {
|
|
string_delete(&tname);
|
|
return 0;
|
|
}
|
|
string_prepend (&decl, tname.b);
|
|
string_delete(&tname);
|
|
|
|
if (static_type)
|
|
{
|
|
string_append(&decl, p+1);
|
|
p += strlen(p);
|
|
success = 1;
|
|
}
|
|
else
|
|
success = do_args (&p, &decl, arg_mode);
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < ntypes; i++)
|
|
if (typevec[i] != NULL)
|
|
free (typevec[i]);
|
|
ntypes = 0;
|
|
if (typevec != NULL)
|
|
{
|
|
free ((char *)typevec);
|
|
typevec = NULL;
|
|
typevec_size = 0;
|
|
}
|
|
|
|
if (success)
|
|
{
|
|
string_appendn (&decl, "", 1);
|
|
return decl.b;
|
|
}
|
|
else
|
|
{
|
|
string_delete (&decl);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static int
|
|
get_count (type, count)
|
|
const char **type;
|
|
int *count;
|
|
{
|
|
if (!isdigit (**type))
|
|
return 0;
|
|
*count = **type - '0';
|
|
*type += 1;
|
|
/* see flush_repeats in cplus-method.c */
|
|
if (isdigit (**type))
|
|
{
|
|
const char *p = *type;
|
|
int n = *count;
|
|
do
|
|
{
|
|
n *= 10;
|
|
n += *p - '0';
|
|
p += 1;
|
|
}
|
|
while (isdigit (*p));
|
|
if (*p == '_')
|
|
{
|
|
*type = p + 1;
|
|
*count = n;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* result will be initialised here; it will be freed on failure */
|
|
|
|
static int
|
|
do_type (type, result, arg_mode)
|
|
const char **type;
|
|
string *result;
|
|
int arg_mode;
|
|
{
|
|
int n;
|
|
int done;
|
|
int non_empty = 0;
|
|
int success;
|
|
string decl;
|
|
const char *remembered_type;
|
|
|
|
string_init (&decl);
|
|
string_init (result);
|
|
|
|
done = 0;
|
|
success = 1;
|
|
while (success && !done)
|
|
{
|
|
int member;
|
|
switch (**type)
|
|
{
|
|
case 'Q':
|
|
n = (*type)[1] - '0';
|
|
if (n < 0 || n > 9)
|
|
success = 0;
|
|
*type += 2;
|
|
while (n-- > 0)
|
|
do_type (type, result, arg_mode);
|
|
break;
|
|
|
|
case 'P':
|
|
*type += 1;
|
|
string_prepend (&decl, "*");
|
|
break;
|
|
|
|
case 'R':
|
|
*type += 1;
|
|
string_prepend (&decl, "&");
|
|
break;
|
|
|
|
case 'T':
|
|
*type += 1;
|
|
if (!get_count (type, &n) || n >= ntypes)
|
|
success = 0;
|
|
else
|
|
{
|
|
remembered_type = typevec[n];
|
|
type = &remembered_type;
|
|
}
|
|
break;
|
|
|
|
case 'F':
|
|
*type += 1;
|
|
if (!string_empty (&decl) && decl.b[0] == '*')
|
|
{
|
|
string_prepend (&decl, "(");
|
|
string_append (&decl, ")");
|
|
}
|
|
if (!do_args (type, &decl, arg_mode) || **type != '_')
|
|
success = 0;
|
|
else
|
|
*type += 1;
|
|
break;
|
|
|
|
case 'M':
|
|
case 'O':
|
|
{
|
|
int constp = 0;
|
|
int volatilep = 0;
|
|
|
|
member = **type == 'M';
|
|
*type += 1;
|
|
if (!isdigit (**type))
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
n = 0;
|
|
do
|
|
{
|
|
n *= 10;
|
|
n += **type - '0';
|
|
*type += 1;
|
|
}
|
|
while (isdigit (**type));
|
|
if (strlen (*type) < n)
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
string_append (&decl, ")");
|
|
string_prepend (&decl, "::");
|
|
string_prependn (&decl, *type, n);
|
|
string_prepend (&decl, "(");
|
|
*type += n;
|
|
if (member)
|
|
{
|
|
if (**type == 'C')
|
|
{
|
|
*type += 1;
|
|
constp = 1;
|
|
}
|
|
if (**type == 'V')
|
|
{
|
|
*type += 1;
|
|
volatilep = 1;
|
|
}
|
|
if (*(*type)++ != 'F')
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
}
|
|
if ((member && !do_args (type, &decl, arg_mode)) || **type != '_')
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
*type += 1;
|
|
if (! print_ansi_qualifiers)
|
|
break;
|
|
if (constp)
|
|
{
|
|
if (non_empty)
|
|
string_append (&decl, " ");
|
|
else
|
|
non_empty = 1;
|
|
string_append (&decl, "const");
|
|
}
|
|
if (volatilep)
|
|
{
|
|
if (non_empty)
|
|
string_append (&decl, " ");
|
|
else
|
|
non_empty = 1;
|
|
string_append (&decl, "volatile");
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 'C':
|
|
if ((*type)[1] == 'P')
|
|
{
|
|
*type += 1;
|
|
if (print_ansi_qualifiers)
|
|
{
|
|
if (!string_empty (&decl))
|
|
string_prepend (&decl, " ");
|
|
string_prepend (&decl, "const");
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* fall through */
|
|
default:
|
|
done = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
done = 0;
|
|
non_empty = 0;
|
|
while (success && !done)
|
|
{
|
|
switch (**type)
|
|
{
|
|
case 'C':
|
|
*type += 1;
|
|
if (print_ansi_qualifiers)
|
|
{
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
else
|
|
non_empty = 1;
|
|
string_append (result, "const");
|
|
}
|
|
break;
|
|
case 'U':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
else
|
|
non_empty = 1;
|
|
string_append (result, "unsigned");
|
|
break;
|
|
case 'V':
|
|
*type += 1;
|
|
if (print_ansi_qualifiers)
|
|
{
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
else
|
|
non_empty = 1;
|
|
string_append (result, "volatile");
|
|
}
|
|
break;
|
|
default:
|
|
done = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (success)
|
|
switch (**type)
|
|
{
|
|
case '\0':
|
|
case '_':
|
|
break;
|
|
case 'v':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "void");
|
|
break;
|
|
case 'x':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "long long");
|
|
break;
|
|
case 'l':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "long");
|
|
break;
|
|
case 'i':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "int");
|
|
break;
|
|
case 's':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "short");
|
|
break;
|
|
case 'c':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "char");
|
|
break;
|
|
case 'r':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "long double");
|
|
break;
|
|
case 'd':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "double");
|
|
break;
|
|
case 'f':
|
|
*type += 1;
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_append (result, "float");
|
|
break;
|
|
case 'G':
|
|
*type += 1;
|
|
if (!isdigit (**type))
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
/* fall through */
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
case '8':
|
|
case '9':
|
|
n = 0;
|
|
do
|
|
{
|
|
n *= 10;
|
|
n += **type - '0';
|
|
*type += 1;
|
|
}
|
|
while (isdigit (**type));
|
|
if (strlen (*type) < n)
|
|
{
|
|
success = 0;
|
|
break;
|
|
}
|
|
if (non_empty)
|
|
string_append (result, " ");
|
|
string_appendn (result, *type, n);
|
|
*type += n;
|
|
break;
|
|
default:
|
|
success = 0;
|
|
break;
|
|
}
|
|
|
|
if (success)
|
|
{
|
|
if (!string_empty (&decl))
|
|
{
|
|
string_append (result, " ");
|
|
string_appends (result, &decl);
|
|
}
|
|
string_delete (&decl);
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
string_delete (&decl);
|
|
string_delete (result);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* `result' will be initialised in do_type; it will be freed on failure */
|
|
|
|
static int
|
|
do_arg (type, result, arg_mode)
|
|
const char **type;
|
|
string *result;
|
|
int arg_mode;
|
|
{
|
|
const char *start = *type;
|
|
|
|
if (!do_type (type, result, arg_mode))
|
|
return 0;
|
|
remember_type (start, *type - start);
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
remember_type (start, len)
|
|
const char *start;
|
|
int len;
|
|
{
|
|
char *tem;
|
|
|
|
if (ntypes >= typevec_size)
|
|
{
|
|
if (typevec_size == 0)
|
|
{
|
|
typevec_size = 3;
|
|
typevec = (char **) xmalloc (sizeof (char*)*typevec_size);
|
|
}
|
|
else
|
|
{
|
|
typevec_size *= 2;
|
|
typevec = (char **) xrealloc ((char *)typevec, sizeof (char*)*typevec_size);
|
|
}
|
|
}
|
|
tem = (char *) xmalloc (len + 1);
|
|
memcpy (tem, start, len);
|
|
tem[len] = '\0';
|
|
typevec[ntypes++] = tem;
|
|
}
|
|
|
|
/* `decl' must be already initialised, usually non-empty;
|
|
it won't be freed on failure */
|
|
|
|
static int
|
|
do_args (type, decl, arg_mode)
|
|
const char **type;
|
|
string *decl;
|
|
int arg_mode;
|
|
{
|
|
string arg;
|
|
int need_comma = 0;
|
|
|
|
if (print_arg_types)
|
|
string_append (decl, "(");
|
|
|
|
while (**type != '_' && **type != '\0' && **type != 'e' && **type != 'v')
|
|
{
|
|
if (**type == 'N')
|
|
{
|
|
int r;
|
|
int t;
|
|
*type += 1;
|
|
if (!get_count (type, &r) || !get_count (type, &t) || t >= ntypes)
|
|
return 0;
|
|
while (--r >= 0)
|
|
{
|
|
const char *tem = typevec[t];
|
|
if (need_comma && print_arg_types)
|
|
string_append (decl, ", ");
|
|
if (!do_arg (&tem, &arg, arg_mode))
|
|
return 0;
|
|
if (print_arg_types)
|
|
string_appends (decl, &arg);
|
|
string_delete (&arg);
|
|
need_comma = 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (need_comma & print_arg_types)
|
|
string_append (decl, ", ");
|
|
if (!do_arg (type, &arg, arg_mode))
|
|
return 0;
|
|
if (print_arg_types)
|
|
string_appends (decl, &arg);
|
|
string_delete (&arg);
|
|
need_comma = 1;
|
|
}
|
|
}
|
|
|
|
if (**type == 'v')
|
|
*type += 1;
|
|
else if (**type == 'e')
|
|
{
|
|
*type += 1;
|
|
if (print_arg_types)
|
|
{
|
|
if (need_comma)
|
|
string_append (decl, ",");
|
|
string_append (decl, "...");
|
|
}
|
|
}
|
|
|
|
if (print_arg_types)
|
|
string_append (decl, ")");
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
munge_function_name (name, arg_mode)
|
|
string *name;
|
|
int arg_mode;
|
|
{
|
|
if (string_empty (name))
|
|
return;
|
|
|
|
if (name->p - name->b >= 3
|
|
&& name->b[0] == 'o' && name->b[1] == 'p' && name->b[2] == CPLUS_MARKER)
|
|
{
|
|
int i;
|
|
/* see if it's an assignment expression */
|
|
if (name->p - name->b >= 10 /* op$assign_ */
|
|
&& memcmp (name->b + 3, "assign_", 7) == 0)
|
|
{
|
|
for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++)
|
|
{
|
|
int len = name->p - name->b - 10;
|
|
if (strlen (optable[i].in) == len
|
|
&& memcmp (optable[i].in, name->b + 10, len) == 0)
|
|
{
|
|
string_clear (name);
|
|
string_append (name, "operator");
|
|
string_append (name, optable[i].out);
|
|
string_append (name, "=");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++)
|
|
{
|
|
int len = name->p - name->b - 3;
|
|
if (strlen (optable[i].in) == len
|
|
&& memcmp (optable[i].in, name->b + 3, len) == 0)
|
|
{
|
|
string_clear (name);
|
|
string_append (name, "operator");
|
|
string_append (name, optable[i].out);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
else if (name->p - name->b >= 5 && memcmp (name->b, "type$", 5) == 0)
|
|
{
|
|
/* type conversion operator */
|
|
string type;
|
|
const char *tem = name->b + 5;
|
|
if (do_type (&tem, &type, arg_mode))
|
|
{
|
|
string_clear (name);
|
|
string_append (name, "operator ");
|
|
string_appends (name, &type);
|
|
string_delete (&type);
|
|
return;
|
|
}
|
|
}
|
|
/* ANSI. */
|
|
else if (name->b[2] == 'o' && name->b[3] == 'p')
|
|
{
|
|
/* type conversion operator. */
|
|
string type;
|
|
const char *tem = name->b + 4;
|
|
if (do_type (&tem, &type, arg_mode))
|
|
{
|
|
string_clear (name);
|
|
string_append (name, "operator ");
|
|
string_appends (name, &type);
|
|
string_delete (&type);
|
|
return;
|
|
}
|
|
}
|
|
else if (name->b[0] == '_' && name->b[1] == '_'
|
|
&& name->b[2] >= 'a' && name->b[2] <= 'z'
|
|
&& name->b[3] >= 'a' && name->b[3] <= 'z')
|
|
{
|
|
int i;
|
|
|
|
if (name->b[4] == '\0')
|
|
{
|
|
/* Operator. */
|
|
for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++)
|
|
{
|
|
if (strlen (optable[i].in) == 2
|
|
&& memcmp (optable[i].in, name->b + 2, 2) == 0)
|
|
{
|
|
string_clear (name);
|
|
string_append (name, "operator");
|
|
string_append (name, optable[i].out);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (name->b[2] != 'a' || name->b[5] != '\0')
|
|
return;
|
|
/* Assignment. */
|
|
for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++)
|
|
{
|
|
if (strlen (optable[i].in) == 3
|
|
&& memcmp (optable[i].in, name->b + 2, 3) == 0)
|
|
{
|
|
string_clear (name);
|
|
string_append (name, "operator");
|
|
string_append (name, optable[i].out);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* a mini string-handling package */
|
|
|
|
static void
|
|
string_need (s, n)
|
|
string *s;
|
|
int n;
|
|
{
|
|
if (s->b == NULL)
|
|
{
|
|
if (n < 32)
|
|
n = 32;
|
|
s->p = s->b = (char *) xmalloc (n);
|
|
s->e = s->b + n;
|
|
}
|
|
else if (s->e - s->p < n)
|
|
{
|
|
int tem = s->p - s->b;
|
|
n += tem;
|
|
n *= 2;
|
|
s->b = (char *) xrealloc (s->b, n);
|
|
s->p = s->b + tem;
|
|
s->e = s->b + n;
|
|
}
|
|
}
|
|
|
|
static void
|
|
string_delete (s)
|
|
string *s;
|
|
{
|
|
if (s->b != NULL)
|
|
{
|
|
free (s->b);
|
|
s->b = s->e = s->p = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
string_init (s)
|
|
string *s;
|
|
{
|
|
s->b = s->p = s->e = NULL;
|
|
}
|
|
|
|
static void
|
|
string_clear (s)
|
|
string *s;
|
|
{
|
|
s->p = s->b;
|
|
}
|
|
|
|
static int
|
|
string_empty (s)
|
|
string *s;
|
|
{
|
|
return s->b == s->p;
|
|
}
|
|
|
|
static void
|
|
string_append (p, s)
|
|
string *p;
|
|
const char *s;
|
|
{
|
|
int n;
|
|
if (s == NULL || *s == '\0')
|
|
return;
|
|
n = strlen (s);
|
|
string_need (p, n);
|
|
memcpy (p->p, s, n);
|
|
p->p += n;
|
|
}
|
|
|
|
static void
|
|
string_appends (p, s)
|
|
string *p, *s;
|
|
{
|
|
int n;
|
|
if (s->b == s->p)
|
|
return;
|
|
n = s->p - s->b;
|
|
string_need (p, n);
|
|
memcpy (p->p, s->b, n);
|
|
p->p += n;
|
|
}
|
|
|
|
static void
|
|
string_appendn (p, s, n)
|
|
string *p;
|
|
const char *s;
|
|
int n;
|
|
{
|
|
if (n == 0)
|
|
return;
|
|
string_need (p, n);
|
|
memcpy (p->p, s, n);
|
|
p->p += n;
|
|
}
|
|
|
|
static void
|
|
string_prepend (p, s)
|
|
string *p;
|
|
const char *s;
|
|
{
|
|
if (s == NULL || *s == '\0')
|
|
return;
|
|
string_prependn (p, s, strlen (s));
|
|
}
|
|
|
|
#if 0
|
|
static void
|
|
string_prepends (p, s)
|
|
string *p, *s;
|
|
{
|
|
if (s->b == s->p)
|
|
return;
|
|
string_prependn (p, s->b, s->p - s->b);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
string_prependn (p, s, n)
|
|
string *p;
|
|
const char *s;
|
|
int n;
|
|
{
|
|
char *q;
|
|
|
|
if (n == 0)
|
|
return;
|
|
string_need (p, n);
|
|
for (q = p->p - 1; q >= p->b; q--)
|
|
q[n] = q[0];
|
|
memcpy (p->b, s, n);
|
|
p->p += n;
|
|
}
|