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Sweden-Number/tools/widl/header.c

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/*
* IDL Compiler
*
* Copyright 2002 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <string.h>
#include <ctype.h>
#include "widl.h"
#include "utils.h"
#include "parser.h"
#include "header.h"
#include "expr.h"
#include "typetree.h"
static int indentation = 0;
static int is_object_interface = 0;
user_type_list_t user_type_list = LIST_INIT(user_type_list);
context_handle_list_t context_handle_list = LIST_INIT(context_handle_list);
generic_handle_list_t generic_handle_list = LIST_INIT(generic_handle_list);
static void write_type_def_or_decl(FILE *f, type_t *t, int field, const char *name);
static void indent(FILE *h, int delta)
{
int c;
if (delta < 0) indentation += delta;
for (c=0; c<indentation; c++) fprintf(h, " ");
if (delta > 0) indentation += delta;
}
int is_ptrchain_attr(const var_t *var, enum attr_type t)
{
if (is_attr(var->attrs, t))
return 1;
else
{
type_t *type = var->type;
for (;;)
{
if (is_attr(type->attrs, t))
return 1;
else if (type_is_alias(type))
type = type_alias_get_aliasee(type);
else if (is_ptr(type))
type = type_pointer_get_ref(type);
else return 0;
}
}
}
int is_aliaschain_attr(const type_t *type, enum attr_type attr)
{
const type_t *t = type;
for (;;)
{
if (is_attr(t->attrs, attr))
return 1;
else if (type_is_alias(t))
t = type_alias_get_aliasee(t);
else return 0;
}
}
int is_attr(const attr_list_t *list, enum attr_type t)
{
const attr_t *attr;
if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
if (attr->type == t) return 1;
return 0;
}
void *get_attrp(const attr_list_t *list, enum attr_type t)
{
const attr_t *attr;
if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
if (attr->type == t) return attr->u.pval;
return NULL;
}
unsigned int get_attrv(const attr_list_t *list, enum attr_type t)
{
const attr_t *attr;
if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
if (attr->type == t) return attr->u.ival;
return 0;
}
int is_void(const type_t *t)
{
return type_get_type(t) == TYPE_VOID;
}
int is_conformant_array(const type_t *t)
{
return is_array(t) && type_array_has_conformance(t);
}
void write_guid(FILE *f, const char *guid_prefix, const char *name, const UUID *uuid)
{
if (!uuid) return;
fprintf(f, "DEFINE_GUID(%s_%s, 0x%08x, 0x%04x, 0x%04x, 0x%02x,0x%02x, 0x%02x,"
"0x%02x,0x%02x,0x%02x,0x%02x,0x%02x);\n",
guid_prefix, name, uuid->Data1, uuid->Data2, uuid->Data3, uuid->Data4[0],
uuid->Data4[1], uuid->Data4[2], uuid->Data4[3], uuid->Data4[4], uuid->Data4[5],
uuid->Data4[6], uuid->Data4[7]);
}
static void write_uuid_decl(FILE *f, const char *name, const UUID *uuid)
{
fprintf(f, "#ifdef __CRT_UUID_DECL\n");
fprintf(f, "__CRT_UUID_DECL(%s, 0x%08x, 0x%04x, 0x%04x, 0x%02x,0x%02x, 0x%02x,"
"0x%02x,0x%02x,0x%02x,0x%02x,0x%02x)\n",
name, uuid->Data1, uuid->Data2, uuid->Data3, uuid->Data4[0], uuid->Data4[1],
uuid->Data4[2], uuid->Data4[3], uuid->Data4[4], uuid->Data4[5], uuid->Data4[6],
uuid->Data4[7]);
fprintf(f, "#endif\n");
}
static const char *uuid_string(const UUID *uuid)
{
static char buf[37];
sprintf(buf, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
uuid->Data1, uuid->Data2, uuid->Data3, uuid->Data4[0], uuid->Data4[1], uuid->Data4[2],
uuid->Data4[3], uuid->Data4[4], uuid->Data4[5], uuid->Data4[6], uuid->Data4[7]);
return buf;
}
const char *get_name(const var_t *v)
{
static char buffer[256];
if (is_attr( v->attrs, ATTR_PROPGET ))
strcpy( buffer, "get_" );
else if (is_attr( v->attrs, ATTR_PROPPUT ))
strcpy( buffer, "put_" );
else if (is_attr( v->attrs, ATTR_PROPPUTREF ))
strcpy( buffer, "putref_" );
else
buffer[0] = 0;
strcat( buffer, v->name );
return buffer;
}
static void write_field(FILE *h, var_t *v)
{
if (!v) return;
if (v->type) {
indent(h, 0);
write_type_def_or_decl(h, v->type, TRUE, v->name);
fprintf(h, ";\n");
}
}
static void write_fields(FILE *h, var_list_t *fields)
{
var_t *v;
if (!fields) return;
LIST_FOR_EACH_ENTRY( v, fields, var_t, entry ) write_field(h, v);
}
static void write_enums(FILE *h, var_list_t *enums)
{
var_t *v;
if (!enums) return;
LIST_FOR_EACH_ENTRY( v, enums, var_t, entry )
{
if (v->name) {
indent(h, 0);
fprintf(h, "%s", get_name(v));
if (v->eval) {
fprintf(h, " = ");
write_expr(h, v->eval, 0, 1, NULL, NULL, "");
}
}
if (list_next( enums, &v->entry )) fprintf(h, ",\n");
}
fprintf(h, "\n");
}
int needs_space_after(type_t *t)
{
return (type_is_alias(t) ||
(!is_ptr(t) && (!is_array(t) || !type_array_is_decl_as_ptr(t) || t->name)));
}
void write_type_left(FILE *h, type_t *t, int declonly)
{
if (!h) return;
if (is_attr(t->attrs, ATTR_CONST) &&
(type_is_alias(t) || !is_ptr(t)))
fprintf(h, "const ");
if (type_is_alias(t)) fprintf(h, "%s", t->name);
else {
switch (type_get_type_detect_alias(t)) {
case TYPE_ENUM:
if (!declonly && t->defined && !t->written) {
if (t->name) fprintf(h, "enum %s {\n", t->name);
else fprintf(h, "enum {\n");
t->written = TRUE;
indentation++;
write_enums(h, type_enum_get_values(t));
indent(h, -1);
fprintf(h, "}");
}
else fprintf(h, "enum %s", t->name ? t->name : "");
break;
case TYPE_STRUCT:
case TYPE_ENCAPSULATED_UNION:
if (!declonly && t->defined && !t->written) {
if (t->name) fprintf(h, "struct %s {\n", t->name);
else fprintf(h, "struct {\n");
t->written = TRUE;
indentation++;
if (type_get_type(t) != TYPE_STRUCT)
write_fields(h, type_encapsulated_union_get_fields(t));
else
write_fields(h, type_struct_get_fields(t));
indent(h, -1);
fprintf(h, "}");
}
else fprintf(h, "struct %s", t->name ? t->name : "");
break;
case TYPE_UNION:
if (!declonly && t->defined && !t->written) {
if (t->name) fprintf(h, "union %s {\n", t->name);
else fprintf(h, "union {\n");
t->written = TRUE;
indentation++;
write_fields(h, type_union_get_cases(t));
indent(h, -1);
fprintf(h, "}");
}
else fprintf(h, "union %s", t->name ? t->name : "");
break;
case TYPE_POINTER:
write_type_left(h, type_pointer_get_ref(t), declonly);
fprintf(h, "%s*", needs_space_after(type_pointer_get_ref(t)) ? " " : "");
if (is_attr(t->attrs, ATTR_CONST)) fprintf(h, "const ");
break;
case TYPE_ARRAY:
if (t->name && type_array_is_decl_as_ptr(t))
fprintf(h, "%s", t->name);
else
{
write_type_left(h, type_array_get_element(t), declonly);
if (type_array_is_decl_as_ptr(t))
fprintf(h, "%s*", needs_space_after(type_array_get_element(t)) ? " " : "");
}
break;
case TYPE_BASIC:
if (type_basic_get_type(t) != TYPE_BASIC_INT32 &&
type_basic_get_type(t) != TYPE_BASIC_INT64 &&
type_basic_get_type(t) != TYPE_BASIC_HYPER)
{
if (type_basic_get_sign(t) < 0) fprintf(h, "signed ");
else if (type_basic_get_sign(t) > 0) fprintf(h, "unsigned ");
}
switch (type_basic_get_type(t))
{
case TYPE_BASIC_INT8: fprintf(h, "small"); break;
case TYPE_BASIC_INT16: fprintf(h, "short"); break;
case TYPE_BASIC_INT: fprintf(h, "int"); break;
case TYPE_BASIC_INT3264: fprintf(h, "__int3264"); break;
case TYPE_BASIC_BYTE: fprintf(h, "byte"); break;
case TYPE_BASIC_CHAR: fprintf(h, "char"); break;
case TYPE_BASIC_WCHAR: fprintf(h, "wchar_t"); break;
case TYPE_BASIC_FLOAT: fprintf(h, "float"); break;
case TYPE_BASIC_DOUBLE: fprintf(h, "double"); break;
case TYPE_BASIC_ERROR_STATUS_T: fprintf(h, "error_status_t"); break;
case TYPE_BASIC_HANDLE: fprintf(h, "handle_t"); break;
case TYPE_BASIC_INT32:
if (type_basic_get_sign(t) > 0)
fprintf(h, "ULONG");
else
fprintf(h, "LONG");
break;
case TYPE_BASIC_INT64:
if (type_basic_get_sign(t) > 0)
fprintf(h, "UINT64");
else
fprintf(h, "INT64");
break;
case TYPE_BASIC_HYPER:
if (type_basic_get_sign(t) > 0)
fprintf(h, "MIDL_uhyper");
else
fprintf(h, "hyper");
break;
}
break;
case TYPE_INTERFACE:
case TYPE_MODULE:
case TYPE_COCLASS:
fprintf(h, "%s", t->name);
break;
case TYPE_VOID:
fprintf(h, "void");
break;
case TYPE_BITFIELD:
write_type_left(h, type_bitfield_get_field(t), declonly);
break;
case TYPE_ALIAS:
case TYPE_FUNCTION:
/* handled elsewhere */
assert(0);
break;
}
}
}
void write_type_right(FILE *h, type_t *t, int is_field)
{
if (!h) return;
switch (type_get_type(t))
{
case TYPE_ARRAY:
if (!type_array_is_decl_as_ptr(t))
{
if (is_conformant_array(t))
{
fprintf(h, "[%s]", is_field ? "1" : "");
t = type_array_get_element(t);
}
for ( ;
type_get_type(t) == TYPE_ARRAY && !type_array_is_decl_as_ptr(t);
t = type_array_get_element(t))
fprintf(h, "[%u]", type_array_get_dim(t));
}
break;
case TYPE_BITFIELD:
fprintf(h, " : %u", type_bitfield_get_bits(t)->cval);
break;
case TYPE_VOID:
case TYPE_BASIC:
case TYPE_ENUM:
case TYPE_STRUCT:
case TYPE_ENCAPSULATED_UNION:
case TYPE_UNION:
case TYPE_ALIAS:
case TYPE_MODULE:
case TYPE_COCLASS:
case TYPE_FUNCTION:
case TYPE_INTERFACE:
case TYPE_POINTER:
break;
}
}
static void write_type_v(FILE *h, type_t *t, int is_field, int declonly, const char *name)
{
type_t *pt = NULL;
int ptr_level = 0;
if (!h) return;
if (t) {
for (pt = t; is_ptr(pt); pt = type_pointer_get_ref(pt), ptr_level++)
;
if (type_get_type_detect_alias(pt) == TYPE_FUNCTION) {
int i;
const char *callconv = get_attrp(pt->attrs, ATTR_CALLCONV);
if (!callconv && is_object_interface) callconv = "STDMETHODCALLTYPE";
if (is_attr(pt->attrs, ATTR_INLINE)) fprintf(h, "inline ");
write_type_left(h, type_function_get_rettype(pt), declonly);
fputc(' ', h);
if (ptr_level) fputc('(', h);
if (callconv) fprintf(h, "%s ", callconv);
for (i = 0; i < ptr_level; i++)
fputc('*', h);
} else
write_type_left(h, t, declonly);
}
if (name) fprintf(h, "%s%s", !t || needs_space_after(t) ? " " : "", name );
if (t) {
if (type_get_type_detect_alias(pt) == TYPE_FUNCTION) {
const var_list_t *args = type_function_get_args(pt);
if (ptr_level) fputc(')', h);
fputc('(', h);
if (args)
write_args(h, args, NULL, 0, FALSE);
else
fprintf(h, "void");
fputc(')', h);
} else
write_type_right(h, t, is_field);
}
}
static void write_type_def_or_decl(FILE *f, type_t *t, int field, const char *name)
{
write_type_v(f, t, field, FALSE, name);
}
void write_type_decl(FILE *f, type_t *t, const char *name)
{
write_type_v(f, t, FALSE, TRUE, name);
}
void write_type_decl_left(FILE *f, type_t *t)
{
write_type_left(f, t, TRUE);
}
static int user_type_registered(const char *name)
{
user_type_t *ut;
LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
if (!strcmp(name, ut->name))
return 1;
return 0;
}
static int context_handle_registered(const char *name)
{
context_handle_t *ch;
LIST_FOR_EACH_ENTRY(ch, &context_handle_list, context_handle_t, entry)
if (!strcmp(name, ch->name))
return 1;
return 0;
}
static int generic_handle_registered(const char *name)
{
generic_handle_t *gh;
LIST_FOR_EACH_ENTRY(gh, &generic_handle_list, generic_handle_t, entry)
if (!strcmp(name, gh->name))
return 1;
return 0;
}
unsigned int get_context_handle_offset( const type_t *type )
{
context_handle_t *ch;
unsigned int index = 0;
while (!is_attr( type->attrs, ATTR_CONTEXTHANDLE ))
{
if (type_is_alias( type )) type = type_alias_get_aliasee( type );
else if (is_ptr( type )) type = type_pointer_get_ref( type );
else error( "internal error: %s is not a context handle\n", type->name );
}
LIST_FOR_EACH_ENTRY( ch, &context_handle_list, context_handle_t, entry )
{
if (!strcmp( type->name, ch->name )) return index;
index++;
}
error( "internal error: %s is not registered as a context handle\n", type->name );
return index;
}
unsigned int get_generic_handle_offset( const type_t *type )
{
generic_handle_t *gh;
unsigned int index = 0;
while (!is_attr( type->attrs, ATTR_HANDLE ))
{
if (type_is_alias( type )) type = type_alias_get_aliasee( type );
else if (is_ptr( type )) type = type_pointer_get_ref( type );
else error( "internal error: %s is not a generic handle\n", type->name );
}
LIST_FOR_EACH_ENTRY( gh, &generic_handle_list, generic_handle_t, entry )
{
if (!strcmp( type->name, gh->name )) return index;
index++;
}
error( "internal error: %s is not registered as a generic handle\n", type->name );
return index;
}
/* check for types which require additional prototypes to be generated in the
* header */
void check_for_additional_prototype_types(const var_list_t *list)
{
const var_t *v;
if (!list) return;
LIST_FOR_EACH_ENTRY( v, list, const var_t, entry )
{
type_t *type = v->type;
if (!type) continue;
for (;;) {
const char *name = type->name;
if (type->user_types_registered) break;
type->user_types_registered = 1;
if (is_attr(type->attrs, ATTR_CONTEXTHANDLE)) {
if (!context_handle_registered(name))
{
context_handle_t *ch = xmalloc(sizeof(*ch));
ch->name = xstrdup(name);
list_add_tail(&context_handle_list, &ch->entry);
}
/* don't carry on parsing fields within this type */
break;
}
if ((type_get_type(type) != TYPE_BASIC ||
type_basic_get_type(type) != TYPE_BASIC_HANDLE) &&
is_attr(type->attrs, ATTR_HANDLE)) {
if (!generic_handle_registered(name))
{
generic_handle_t *gh = xmalloc(sizeof(*gh));
gh->name = xstrdup(name);
list_add_tail(&generic_handle_list, &gh->entry);
}
/* don't carry on parsing fields within this type */
break;
}
if (is_attr(type->attrs, ATTR_WIREMARSHAL)) {
if (!user_type_registered(name))
{
user_type_t *ut = xmalloc(sizeof *ut);
ut->name = xstrdup(name);
list_add_tail(&user_type_list, &ut->entry);
}
/* don't carry on parsing fields within this type as we are already
* using a wire marshaled type */
break;
}
else if (type_is_complete(type))
{
var_list_t *vars;
switch (type_get_type_detect_alias(type))
{
case TYPE_ENUM:
vars = type_enum_get_values(type);
break;
case TYPE_STRUCT:
vars = type_struct_get_fields(type);
break;
case TYPE_UNION:
vars = type_union_get_cases(type);
break;
default:
vars = NULL;
break;
}
check_for_additional_prototype_types(vars);
}
if (type_is_alias(type))
type = type_alias_get_aliasee(type);
else if (is_ptr(type))
type = type_pointer_get_ref(type);
else if (is_array(type))
type = type_array_get_element(type);
else
break;
}
}
}
static void write_user_types(FILE *header)
{
user_type_t *ut;
LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
{
const char *name = ut->name;
fprintf(header, "ULONG __RPC_USER %s_UserSize (ULONG *, ULONG, %s *);\n", name, name);
fprintf(header, "unsigned char * __RPC_USER %s_UserMarshal (ULONG *, unsigned char *, %s *);\n", name, name);
fprintf(header, "unsigned char * __RPC_USER %s_UserUnmarshal(ULONG *, unsigned char *, %s *);\n", name, name);
fprintf(header, "void __RPC_USER %s_UserFree (ULONG *, %s *);\n", name, name);
}
}
static void write_context_handle_rundowns(FILE *header)
{
context_handle_t *ch;
LIST_FOR_EACH_ENTRY(ch, &context_handle_list, context_handle_t, entry)
{
const char *name = ch->name;
fprintf(header, "void __RPC_USER %s_rundown(%s);\n", name, name);
}
}
static void write_generic_handle_routines(FILE *header)
{
generic_handle_t *gh;
LIST_FOR_EACH_ENTRY(gh, &generic_handle_list, generic_handle_t, entry)
{
const char *name = gh->name;
fprintf(header, "handle_t __RPC_USER %s_bind(%s);\n", name, name);
fprintf(header, "void __RPC_USER %s_unbind(%s, handle_t);\n", name, name);
}
}
static void write_typedef(FILE *header, type_t *type)
{
fprintf(header, "typedef ");
write_type_def_or_decl(header, type_alias_get_aliasee(type), FALSE, type->name);
fprintf(header, ";\n");
}
int is_const_decl(const var_t *var)
{
const type_t *t;
/* strangely, MIDL accepts a const attribute on any pointer in the
* declaration to mean that data isn't being instantiated. this appears
* to be a bug, but there is no benefit to being incompatible with MIDL,
* so we'll do the same thing */
for (t = var->type; ; )
{
if (is_attr(t->attrs, ATTR_CONST))
return TRUE;
else if (is_ptr(t))
t = type_pointer_get_ref(t);
else break;
}
return FALSE;
}
static void write_declaration(FILE *header, const var_t *v)
{
if (is_const_decl(v) && v->eval)
{
fprintf(header, "#define %s (", v->name);
write_expr(header, v->eval, 0, 1, NULL, NULL, "");
fprintf(header, ")\n\n");
}
else
{
switch (v->stgclass)
{
case STG_NONE:
case STG_REGISTER: /* ignored */
break;
case STG_STATIC:
fprintf(header, "static ");
break;
case STG_EXTERN:
fprintf(header, "extern ");
break;
}
write_type_def_or_decl(header, v->type, FALSE, v->name);
fprintf(header, ";\n\n");
}
}
static void write_library(FILE *header, const typelib_t *typelib)
{
const UUID *uuid = get_attrp(typelib->attrs, ATTR_UUID);
fprintf(header, "\n");
write_guid(header, "LIBID", typelib->name, uuid);
fprintf(header, "\n");
}
const type_t* get_explicit_generic_handle_type(const var_t* var)
{
const type_t *t;
for (t = var->type;
is_ptr(t) || type_is_alias(t);
t = type_is_alias(t) ? type_alias_get_aliasee(t) : type_pointer_get_ref(t))
if ((type_get_type_detect_alias(t) != TYPE_BASIC || type_basic_get_type(t) != TYPE_BASIC_HANDLE) &&
is_attr(t->attrs, ATTR_HANDLE))
return t;
return NULL;
}
const var_t *get_func_handle_var( const type_t *iface, const var_t *func,
unsigned char *explicit_fc, unsigned char *implicit_fc )
{
const var_t *var;
const var_list_t *args = type_get_function_args( func->type );
*explicit_fc = *implicit_fc = 0;
if (args) LIST_FOR_EACH_ENTRY( var, args, const var_t, entry )
{
if (!is_attr( var->attrs, ATTR_IN ) && is_attr( var->attrs, ATTR_OUT )) continue;
if (type_get_type( var->type ) == TYPE_BASIC && type_basic_get_type( var->type ) == TYPE_BASIC_HANDLE)
{
*explicit_fc = RPC_FC_BIND_PRIMITIVE;
return var;
}
if (get_explicit_generic_handle_type( var ))
{
*explicit_fc = RPC_FC_BIND_GENERIC;
return var;
}
if (is_context_handle( var->type ))
{
*explicit_fc = RPC_FC_BIND_CONTEXT;
return var;
}
}
if ((var = get_attrp( iface->attrs, ATTR_IMPLICIT_HANDLE )))
{
if (type_get_type( var->type ) == TYPE_BASIC &&
type_basic_get_type( var->type ) == TYPE_BASIC_HANDLE)
*implicit_fc = RPC_FC_BIND_PRIMITIVE;
else
*implicit_fc = RPC_FC_BIND_GENERIC;
return var;
}
*implicit_fc = RPC_FC_AUTO_HANDLE;
return NULL;
}
int has_out_arg_or_return(const var_t *func)
{
const var_t *var;
if (!is_void(type_function_get_rettype(func->type)))
return 1;
if (!type_get_function_args(func->type))
return 0;
LIST_FOR_EACH_ENTRY( var, type_get_function_args(func->type), const var_t, entry )
if (is_attr(var->attrs, ATTR_OUT))
return 1;
return 0;
}
/********** INTERFACES **********/
int is_object(const type_t *iface)
{
const attr_t *attr;
if (type_is_defined(iface) && type_iface_get_inherit(iface))
return 1;
if (iface->attrs) LIST_FOR_EACH_ENTRY( attr, iface->attrs, const attr_t, entry )
if (attr->type == ATTR_OBJECT || attr->type == ATTR_ODL) return 1;
return 0;
}
int is_local(const attr_list_t *a)
{
return is_attr(a, ATTR_LOCAL);
}
const var_t *is_callas(const attr_list_t *a)
{
return get_attrp(a, ATTR_CALLAS);
}
static void write_method_macro(FILE *header, const type_t *iface, const char *name)
{
const statement_t *stmt;
int first_iface = 1;
if (type_iface_get_inherit(iface))
write_method_macro(header, type_iface_get_inherit(iface), name);
STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface))
{
const var_t *func = stmt->u.var;
if (first_iface)
{
fprintf(header, "/*** %s methods ***/\n", iface->name);
first_iface = 0;
}
if (!is_callas(func->attrs)) {
const var_t *arg;
fprintf(header, "#define %s_%s(This", name, get_name(func));
if (type_get_function_args(func->type))
LIST_FOR_EACH_ENTRY( arg, type_get_function_args(func->type), const var_t, entry )
fprintf(header, ",%s", arg->name);
fprintf(header, ") ");
fprintf(header, "(This)->lpVtbl->%s(This", get_name(func));
if (type_get_function_args(func->type))
LIST_FOR_EACH_ENTRY( arg, type_get_function_args(func->type), const var_t, entry )
fprintf(header, ",%s", arg->name);
fprintf(header, ")\n");
}
}
}
void write_args(FILE *h, const var_list_t *args, const char *name, int method, int do_indent)
{
const var_t *arg;
int count = 0;
if (do_indent)
{
indentation++;
indent(h, 0);
}
if (method == 1) {
fprintf(h, "%s* This", name);
count++;
}
if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry ) {
if (count) {
if (do_indent)
{
fprintf(h, ",\n");
indent(h, 0);
}
else fprintf(h, ",");
}
write_type_decl(h, arg->type, arg->name);
count++;
}
if (do_indent) indentation--;
}
static void write_cpp_method_def(FILE *header, const type_t *iface)
{
const statement_t *stmt;
STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface))
{
const var_t *func = stmt->u.var;
if (!is_callas(func->attrs)) {
const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
if (!callconv) callconv = "STDMETHODCALLTYPE";
indent(header, 0);
fprintf(header, "virtual ");
write_type_decl_left(header, type_function_get_rettype(func->type));
fprintf(header, " %s %s(\n", callconv, get_name(func));
write_args(header, type_get_function_args(func->type), iface->name, 2, TRUE);
fprintf(header, ") = 0;\n");
fprintf(header, "\n");
}
}
}
static void do_write_c_method_def(FILE *header, const type_t *iface, const char *name)
{
const statement_t *stmt;
int first_iface = 1;
if (type_iface_get_inherit(iface))
do_write_c_method_def(header, type_iface_get_inherit(iface), name);
STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface))
{
const var_t *func = stmt->u.var;
if (first_iface) {
indent(header, 0);
fprintf(header, "/*** %s methods ***/\n", iface->name);
first_iface = 0;
}
if (!is_callas(func->attrs)) {
const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
if (!callconv) callconv = "STDMETHODCALLTYPE";
indent(header, 0);
write_type_decl_left(header, type_function_get_rettype(func->type));
fprintf(header, " (%s *%s)(\n", callconv, get_name(func));
write_args(header, type_get_function_args(func->type), name, 1, TRUE);
fprintf(header, ");\n");
fprintf(header, "\n");
}
}
}
static void write_c_method_def(FILE *header, const type_t *iface)
{
do_write_c_method_def(header, iface, iface->name);
}
static void write_c_disp_method_def(FILE *header, const type_t *iface)
{
do_write_c_method_def(header, type_iface_get_inherit(iface), iface->name);
}
static void write_method_proto(FILE *header, const type_t *iface)
{
const statement_t *stmt;
STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface))
{
const var_t *func = stmt->u.var;
if (!is_local(func->attrs)) {
const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
if (!callconv) callconv = "STDMETHODCALLTYPE";
/* proxy prototype */
write_type_decl_left(header, type_function_get_rettype(func->type));
fprintf(header, " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
write_args(header, type_get_function_args(func->type), iface->name, 1, TRUE);
fprintf(header, ");\n");
/* stub prototype */
fprintf(header, "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
fprintf(header, " IRpcStubBuffer* This,\n");
fprintf(header, " IRpcChannelBuffer* pRpcChannelBuffer,\n");
fprintf(header, " PRPC_MESSAGE pRpcMessage,\n");
fprintf(header, " DWORD* pdwStubPhase);\n");
}
}
}
static void write_locals(FILE *fp, const type_t *iface, int body)
{
static const char comment[]
= "/* WIDL-generated stub. You must provide an implementation for this. */";
const statement_t *stmt;
if (!is_object(iface))
return;
STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
const var_t *func = stmt->u.var;
const var_t *cas = is_callas(func->attrs);
if (cas) {
const statement_t *stmt2 = NULL;
STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface))
if (!strcmp(stmt2->u.var->name, cas->name))
break;
if (&stmt2->entry != type_iface_get_stmts(iface)) {
const var_t *m = stmt2->u.var;
/* proxy prototype - use local prototype */
write_type_decl_left(fp, type_function_get_rettype(m->type));
fprintf(fp, " CALLBACK %s_%s_Proxy(\n", iface->name, get_name(m));
write_args(fp, type_get_function_args(m->type), iface->name, 1, TRUE);
fprintf(fp, ")");
if (body) {
type_t *rt = type_function_get_rettype(m->type);
fprintf(fp, "\n{\n");
fprintf(fp, " %s\n", comment);
if (rt->name && strcmp(rt->name, "HRESULT") == 0)
fprintf(fp, " return E_NOTIMPL;\n");
else if (type_get_type(rt) != TYPE_VOID) {
fprintf(fp, " ");
write_type_decl(fp, rt, "rv");
fprintf(fp, ";\n");
fprintf(fp, " memset(&rv, 0, sizeof rv);\n");
fprintf(fp, " return rv;\n");
}
fprintf(fp, "}\n\n");
}
else
fprintf(fp, ";\n");
/* stub prototype - use remotable prototype */
write_type_decl_left(fp, type_function_get_rettype(func->type));
fprintf(fp, " __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(m));
write_args(fp, type_get_function_args(func->type), iface->name, 1, TRUE);
fprintf(fp, ")");
if (body)
/* Remotable methods must all return HRESULTs. */
fprintf(fp, "\n{\n %s\n return E_NOTIMPL;\n}\n\n", comment);
else
fprintf(fp, ";\n");
}
else
error_loc("invalid call_as attribute (%s -> %s)\n", func->name, cas->name);
}
}
}
static void write_local_stubs_stmts(FILE *local_stubs, const statement_list_t *stmts)
{
const statement_t *stmt;
if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
{
if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
write_locals(local_stubs, stmt->u.type, TRUE);
}
}
void write_local_stubs(const statement_list_t *stmts)
{
FILE *local_stubs;
if (!local_stubs_name) return;
local_stubs = fopen(local_stubs_name, "w");
if (!local_stubs) {
error("Could not open %s for output\n", local_stubs_name);
return;
}
fprintf(local_stubs, "/* call_as/local stubs for %s */\n\n", input_name);
fprintf(local_stubs, "#include <objbase.h>\n");
fprintf(local_stubs, "#include \"%s\"\n\n", header_name);
write_local_stubs_stmts(local_stubs, stmts);
fclose(local_stubs);
}
static void write_function_proto(FILE *header, const type_t *iface, const var_t *fun, const char *prefix)
{
const char *callconv = get_attrp(fun->type->attrs, ATTR_CALLCONV);
if (!callconv) callconv = "__cdecl";
/* FIXME: do we need to handle call_as? */
write_type_decl_left(header, type_function_get_rettype(fun->type));
fprintf(header, " %s ", callconv);
fprintf(header, "%s%s(\n", prefix, get_name(fun));
if (type_get_function_args(fun->type))
write_args(header, type_get_function_args(fun->type), iface->name, 0, TRUE);
else
fprintf(header, " void");
fprintf(header, ");\n\n");
}
static void write_forward(FILE *header, type_t *iface)
{
fprintf(header, "#ifndef __%s_FWD_DEFINED__\n", iface->name);
fprintf(header, "#define __%s_FWD_DEFINED__\n", iface->name);
fprintf(header, "typedef interface %s %s;\n", iface->name, iface->name);
fprintf(header, "#endif\n\n" );
}
static void write_com_interface_start(FILE *header, const type_t *iface)
{
int dispinterface = is_attr(iface->attrs, ATTR_DISPINTERFACE);
fprintf(header, "/*****************************************************************************\n");
fprintf(header, " * %s %sinterface\n", iface->name, dispinterface ? "disp" : "");
fprintf(header, " */\n");
fprintf(header,"#ifndef __%s_%sINTERFACE_DEFINED__\n", iface->name, dispinterface ? "DISP" : "");
fprintf(header,"#define __%s_%sINTERFACE_DEFINED__\n\n", iface->name, dispinterface ? "DISP" : "");
}
static void write_com_interface_end(FILE *header, type_t *iface)
{
int dispinterface = is_attr(iface->attrs, ATTR_DISPINTERFACE);
const UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
if (uuid)
write_guid(header, dispinterface ? "DIID" : "IID", iface->name, uuid);
/* C++ interface */
fprintf(header, "#if defined(__cplusplus) && !defined(CINTERFACE)\n");
if (uuid)
fprintf(header, "MIDL_INTERFACE(\"%s\")\n", uuid_string(uuid));
else
fprintf(header, "interface ");
if (type_iface_get_inherit(iface))
{
fprintf(header, "%s : public %s\n", iface->name,
type_iface_get_inherit(iface)->name);
fprintf(header, "{\n");
}
else
{
fprintf(header, "%s\n", iface->name);
fprintf(header, "{\n");
fprintf(header, " BEGIN_INTERFACE\n");
fprintf(header, "\n");
}
/* dispinterfaces don't have real functions, so don't write C++ functions for
* them */
if (!dispinterface)
{
indentation++;
write_cpp_method_def(header, iface);
indentation--;
}
if (!type_iface_get_inherit(iface))
fprintf(header, " END_INTERFACE\n");
fprintf(header, "};\n");
if (uuid)
write_uuid_decl(header, iface->name, uuid);
fprintf(header, "#else\n");
/* C interface */
fprintf(header, "typedef struct %sVtbl {\n", iface->name);
indentation++;
fprintf(header, " BEGIN_INTERFACE\n");
fprintf(header, "\n");
if (dispinterface)
write_c_disp_method_def(header, iface);
else
write_c_method_def(header, iface);
indentation--;
fprintf(header, " END_INTERFACE\n");
fprintf(header, "} %sVtbl;\n", iface->name);
fprintf(header, "interface %s {\n", iface->name);
fprintf(header, " CONST_VTBL %sVtbl* lpVtbl;\n", iface->name);
fprintf(header, "};\n");
fprintf(header, "\n");
fprintf(header, "#ifdef COBJMACROS\n");
/* dispinterfaces don't have real functions, so don't write macros for them,
* only for the interface this interface inherits from, i.e. IDispatch */
write_method_macro(header, dispinterface ? type_iface_get_inherit(iface) : iface, iface->name);
fprintf(header, "#endif\n");
fprintf(header, "\n");
fprintf(header, "#endif\n");
fprintf(header, "\n");
/* dispinterfaces don't have real functions, so don't write prototypes for
* them */
if (!dispinterface)
{
write_method_proto(header, iface);
write_locals(header, iface, FALSE);
fprintf(header, "\n");
}
fprintf(header,"#endif /* __%s_%sINTERFACE_DEFINED__ */\n\n", iface->name, dispinterface ? "DISP" : "");
}
static void write_rpc_interface_start(FILE *header, const type_t *iface)
{
unsigned int ver = get_attrv(iface->attrs, ATTR_VERSION);
const var_t *var = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
fprintf(header, "/*****************************************************************************\n");
fprintf(header, " * %s interface (v%d.%d)\n", iface->name, MAJORVERSION(ver), MINORVERSION(ver));
fprintf(header, " */\n");
fprintf(header,"#ifndef __%s_INTERFACE_DEFINED__\n", iface->name);
fprintf(header,"#define __%s_INTERFACE_DEFINED__\n\n", iface->name);
if (var)
{
fprintf(header, "extern ");
write_type_decl( header, var->type, var->name );
fprintf(header, ";\n");
}
if (old_names)
{
fprintf(header, "extern RPC_IF_HANDLE %s%s_ClientIfHandle;\n", prefix_client, iface->name);
fprintf(header, "extern RPC_IF_HANDLE %s%s_ServerIfHandle;\n", prefix_server, iface->name);
}
else
{
fprintf(header, "extern RPC_IF_HANDLE %s%s_v%d_%d_c_ifspec;\n",
prefix_client, iface->name, MAJORVERSION(ver), MINORVERSION(ver));
fprintf(header, "extern RPC_IF_HANDLE %s%s_v%d_%d_s_ifspec;\n",
prefix_server, iface->name, MAJORVERSION(ver), MINORVERSION(ver));
}
}
static void write_rpc_interface_end(FILE *header, const type_t *iface)
{
fprintf(header,"\n#endif /* __%s_INTERFACE_DEFINED__ */\n\n", iface->name);
}
static void write_coclass(FILE *header, type_t *cocl)
{
const UUID *uuid = get_attrp(cocl->attrs, ATTR_UUID);
fprintf(header, "/*****************************************************************************\n");
fprintf(header, " * %s coclass\n", cocl->name);
fprintf(header, " */\n\n");
if (uuid)
write_guid(header, "CLSID", cocl->name, uuid);
fprintf(header, "\n#ifdef __cplusplus\n");
if (uuid)
{
fprintf(header, "class DECLSPEC_UUID(\"%s\") %s;\n", uuid_string(uuid), cocl->name);
write_uuid_decl(header, cocl->name, uuid);
}
else
{
fprintf(header, "class %s;\n", cocl->name);
}
fprintf(header, "#endif\n");
fprintf(header, "\n");
}
static void write_coclass_forward(FILE *header, type_t *cocl)
{
fprintf(header, "#ifndef __%s_FWD_DEFINED__\n", cocl->name);
fprintf(header, "#define __%s_FWD_DEFINED__\n", cocl->name);
fprintf(header, "typedef struct %s %s;\n", cocl->name, cocl->name);
fprintf(header, "#endif /* defined __%s_FWD_DEFINED__ */\n\n", cocl->name );
}
static void write_import(FILE *header, const char *fname)
{
char *hname, *p;
hname = dup_basename(fname, ".idl");
p = hname + strlen(hname) - 2;
if (p <= hname || strcmp( p, ".h" )) strcat(hname, ".h");
fprintf(header, "#include <%s>\n", hname);
free(hname);
}
static void write_imports(FILE *header, const statement_list_t *stmts)
{
const statement_t *stmt;
if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
{
switch (stmt->type)
{
case STMT_TYPE:
if (type_get_type(stmt->u.type) == TYPE_INTERFACE)
write_imports(header, type_iface_get_stmts(stmt->u.type));
break;
case STMT_TYPEREF:
case STMT_IMPORTLIB:
/* not included in header */
break;
case STMT_IMPORT:
write_import(header, stmt->u.str);
break;
case STMT_TYPEDEF:
case STMT_MODULE:
case STMT_CPPQUOTE:
case STMT_DECLARATION:
/* not processed here */
break;
case STMT_LIBRARY:
write_imports(header, stmt->u.lib->stmts);
break;
}
}
}
static void write_forward_decls(FILE *header, const statement_list_t *stmts)
{
const statement_t *stmt;
if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
{
switch (stmt->type)
{
case STMT_TYPE:
if (type_get_type(stmt->u.type) == TYPE_INTERFACE)
{
if (is_object(stmt->u.type) || is_attr(stmt->u.type->attrs, ATTR_DISPINTERFACE))
write_forward(header, stmt->u.type);
}
else if (type_get_type(stmt->u.type) == TYPE_COCLASS)
write_coclass_forward(header, stmt->u.type);
break;
case STMT_TYPEREF:
case STMT_IMPORTLIB:
/* not included in header */
break;
case STMT_IMPORT:
case STMT_TYPEDEF:
case STMT_MODULE:
case STMT_CPPQUOTE:
case STMT_DECLARATION:
/* not processed here */
break;
case STMT_LIBRARY:
write_forward_decls(header, stmt->u.lib->stmts);
break;
}
}
}
static void write_header_stmts(FILE *header, const statement_list_t *stmts, const type_t *iface, int ignore_funcs)
{
const statement_t *stmt;
if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
{
switch (stmt->type)
{
case STMT_TYPE:
if (type_get_type(stmt->u.type) == TYPE_INTERFACE)
{
type_t *iface = stmt->u.type;
if (is_object(iface)) is_object_interface++;
if (is_attr(stmt->u.type->attrs, ATTR_DISPINTERFACE) || is_object(stmt->u.type))
{
write_com_interface_start(header, iface);
write_header_stmts(header, type_iface_get_stmts(iface), stmt->u.type, TRUE);
write_com_interface_end(header, iface);
}
else
{
write_rpc_interface_start(header, iface);
write_header_stmts(header, type_iface_get_stmts(iface), iface, FALSE);
write_rpc_interface_end(header, iface);
}
if (is_object(iface)) is_object_interface--;
}
else if (type_get_type(stmt->u.type) == TYPE_COCLASS)
write_coclass(header, stmt->u.type);
else
{
write_type_def_or_decl(header, stmt->u.type, FALSE, NULL);
fprintf(header, ";\n\n");
}
break;
case STMT_TYPEREF:
/* FIXME: shouldn't write out forward declarations for undefined
* interfaces but a number of our IDL files depend on this */
if (type_get_type(stmt->u.type) == TYPE_INTERFACE && !stmt->u.type->written)
write_forward(header, stmt->u.type);
break;
case STMT_IMPORTLIB:
case STMT_MODULE:
/* not included in header */
break;
case STMT_IMPORT:
/* not processed here */
break;
case STMT_TYPEDEF:
{
const type_list_t *type_entry = stmt->u.type_list;
for (; type_entry; type_entry = type_entry->next)
write_typedef(header, type_entry->type);
break;
}
case STMT_LIBRARY:
write_library(header, stmt->u.lib);
write_header_stmts(header, stmt->u.lib->stmts, NULL, FALSE);
break;
case STMT_CPPQUOTE:
fprintf(header, "%s\n", stmt->u.str);
break;
case STMT_DECLARATION:
if (iface && type_get_type(stmt->u.var->type) == TYPE_FUNCTION)
{
if (!ignore_funcs)
{
int prefixes_differ = strcmp(prefix_client, prefix_server);
if (prefixes_differ)
{
fprintf(header, "/* client prototype */\n");
write_function_proto(header, iface, stmt->u.var, prefix_client);
fprintf(header, "/* server prototype */\n");
}
write_function_proto(header, iface, stmt->u.var, prefix_server);
}
}
else
write_declaration(header, stmt->u.var);
break;
}
}
}
void write_header(const statement_list_t *stmts)
{
FILE *header;
if (!do_header) return;
if(!(header = fopen(header_name, "w"))) {
error("Could not open %s for output\n", header_name);
return;
}
fprintf(header, "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n\n", PACKAGE_VERSION, input_name);
fprintf(header, "#include <rpc.h>\n" );
fprintf(header, "#include <rpcndr.h>\n\n" );
fprintf(header, "#if !defined(COM_NO_WINDOWS_H) && !defined(__WINESRC__)\n");
fprintf(header, "#include <windows.h>\n");
fprintf(header, "#include <ole2.h>\n");
fprintf(header, "#endif\n\n");
fprintf(header, "#ifndef __WIDL_%s\n", header_token);
fprintf(header, "#define __WIDL_%s\n\n", header_token);
fprintf(header, "/* Forward declarations */\n\n");
write_forward_decls(header, stmts);
fprintf(header, "/* Headers for imported files */\n\n");
write_imports(header, stmts);
fprintf(header, "\n");
start_cplusplus_guard(header);
write_header_stmts(header, stmts, NULL, FALSE);
fprintf(header, "/* Begin additional prototypes for all interfaces */\n");
fprintf(header, "\n");
write_user_types(header);
write_generic_handle_routines(header);
write_context_handle_rundowns(header);
fprintf(header, "\n");
fprintf(header, "/* End additional prototypes */\n");
fprintf(header, "\n");
end_cplusplus_guard(header);
fprintf(header, "#endif /* __WIDL_%s */\n", header_token);
fclose(header);
}
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