Sweden-Number/tools/widl/typelib.c

/*
 * IDL Compiler
 *
 * Copyright 2004 Ove Kaaven
 *
 * 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
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "config.h"

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <assert.h>
#include <ctype.h>
#include <signal.h>

#include "widl.h"
#include "utils.h"
#include "parser.h"
#include "header.h"
#include "typelib.h"

int in_typelib = 0;

static typelib_t *typelib;

/* List of oleauto types that should be recognized by name.
 * (most of) these seem to be intrinsic types in mktyplib. */

static struct oatype {
  const char *kw;
  unsigned short vt;
} oatypes[] = {
  {"BSTR",      VT_BSTR},
  {"CURRENCY",  VT_CY},
  {"DATE",      VT_DATE},
  {"DECIMAL",   VT_DECIMAL},
  {"HRESULT",   VT_HRESULT},
  {"LPSTR",     VT_LPSTR},
  {"LPWSTR",    VT_LPWSTR},
  {"SCODE",     VT_ERROR},
  {"VARIANT",   VT_VARIANT}
};
#define NTYPES (sizeof(oatypes)/sizeof(oatypes[0]))
#define KWP(p) ((const struct oatype *)(p))

static int kw_cmp_func(const void *s1, const void *s2)
{
        return strcmp(KWP(s1)->kw, KWP(s2)->kw);
}

static unsigned short builtin_vt(const char *kw)
{
  struct oatype key, *kwp;
  key.kw = kw;
#ifdef KW_BSEARCH
  kwp = bsearch(&key, oatypes, NTYPES, sizeof(oatypes[0]), kw_cmp_func);
#else
  {
    int i;
    for (kwp=NULL, i=0; i < NTYPES; i++)
      if (!kw_cmp_func(&key, &oatypes[i])) {
        kwp = &oatypes[i];
        break;
      }
  }
#endif
  if (kwp) {
    return kwp->vt;
  }
  return 0;
}

static int match(const char*n, const char*m)
{
  if (!n) return 0;
  return !strcmp(n, m);
}

unsigned short get_type_vt(type_t *t)
{
  unsigned short vt;

  if (t->name) {
    vt = builtin_vt(t->name);
    if (vt) return vt;
  }

  switch (t->type) {
  case RPC_FC_BYTE:
  case RPC_FC_USMALL:
    return VT_UI1;
  case RPC_FC_CHAR:
  case RPC_FC_SMALL:
    return VT_I1;
  case RPC_FC_WCHAR:
    return VT_I2; /* mktyplib seems to parse wchar_t as short */
  case RPC_FC_SHORT:
    return VT_I2;
  case RPC_FC_USHORT:
    return VT_UI2;
  case RPC_FC_LONG:
    if (t->ref && match(t->ref->name, "int")) return VT_INT;
    return VT_I4;
  case RPC_FC_ULONG:
    if (t->ref && match(t->ref->name, "int")) return VT_UINT;
    return VT_UI4;
  case RPC_FC_HYPER:
    if (t->sign < 0) return VT_UI8;
    if (t->ref && match(t->ref->name, "MIDL_uhyper")) return VT_UI8;
    return VT_I8;
  case RPC_FC_FLOAT:
    return VT_R4;
  case RPC_FC_DOUBLE:
    return VT_R8;
  case RPC_FC_RP:
  case RPC_FC_UP:
  case RPC_FC_OP:
  case RPC_FC_FP:
    /* it's a pointer... */
    if (t->ref && t->ref->type == RPC_FC_IP) {
      /* it's to an interface, which one? */
      if (match(t->ref->name, "IDispatch"))
        return VT_DISPATCH;
      if (match(t->ref->name, "IUnknown"))
        return VT_UNKNOWN;
    }
    /* FIXME: should we recurse and add a VT_BYREF? */
    /* Or just return VT_PTR? */
    if(t->ref) return get_type_vt(t->ref);
    error("get_type_vt: unknown-deref-type: %d\n", t->ref->type);
    break;
  case RPC_FC_STRUCT:
    return VT_USERDEFINED;
  default:
    error("get_type_vt: unknown-type: %d\n", t->type);
  }
  return 0;
}

unsigned short get_var_vt(var_t *v)
{
  unsigned short vt;

  if (v->tname) {
    vt = builtin_vt(v->tname);
    if (vt) return vt;
  }

  return get_type_vt(v->type);
}

void start_typelib(char *name, attr_t *attrs)
{
    in_typelib++;
    if (!do_everything && !typelib_only) return;

    typelib = xmalloc(sizeof(*typelib));
    typelib->name = xstrdup(name);
    typelib->filename = xstrdup(typelib_name);
    typelib->attrs = attrs;
}

void end_typelib(void)
{
    in_typelib--;
    if (!typelib) return;

    create_msft_typelib(typelib);
    return;
}

void add_interface(type_t *iface)
{
    typelib_entry_t *entry;
    if (!typelib) return;

    chat("add interface: %s\n", iface->name);
    entry = xmalloc(sizeof(*entry));
    entry->kind = TKIND_INTERFACE;
    entry->u.interface = iface;
    LINK(entry, typelib->entry);
    typelib->entry = entry;
}

void add_coclass(class_t *cls)
{
    ifref_t *lcur = cls->ifaces;
    ifref_t *cur;
    typelib_entry_t *entry;

    if (lcur) {
        while (NEXT_LINK(lcur)) lcur = NEXT_LINK(lcur);
    }

    if (!typelib) return;

    /* install interfaces the coclass depends on */
    cur = lcur;
    while (cur) {
        add_interface(cur->iface);
        cur = PREV_LINK(cur);
    }
    entry = xmalloc(sizeof(*entry));
    entry->kind = TKIND_COCLASS;
    entry->u.class = cls;
    LINK(entry, typelib->entry);
    typelib->entry = entry;
}

void add_module(type_t *module)
{
    typelib_entry_t *entry;
    if (!typelib) return;

    chat("add module: %s\n", module->name);
    entry = xmalloc(sizeof(*entry));
    entry->kind = TKIND_MODULE;
    entry->u.module = module;
    LINK(entry, typelib->entry);
    typelib->entry = entry;
}

void add_struct(type_t *structure)
{
     typelib_entry_t *entry;
     if (!typelib) return;

     chat("add struct: %s\n", structure->name);
     entry = xmalloc(sizeof(*entry));
     entry->kind = TKIND_RECORD;
     entry->u.structure = structure;
     LINK(entry, typelib->entry);
     typelib->entry = entry;
}