tools/widl/header.h

   1 /*
   2  * IDL Compiler
   3  *
   4  * Copyright 2002 Ove Kaaven
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #ifndef __WIDL_HEADER_H
  22 #define __WIDL_HEADER_H
  23
  24 #include "typetree.h"
  25
  26 extern int is_ptrchain_attr(const var_t *var, enum attr_type t);
  27 extern int is_aliaschain_attr(const type_t *var, enum attr_type t);
  28 extern int is_attr(const attr_list_t *list, enum attr_type t);
  29 extern void *get_attrp(const attr_list_t *list, enum attr_type t);
  30 extern unsigned int get_attrv(const attr_list_t *list, enum attr_type t);
  31 extern const char* get_name(const var_t *v);
  32 extern void write_type_left(FILE *h, const decl_spec_t *ds, enum name_type name_type, int declonly, int write_callconv);
  33 extern void write_type_right(FILE *h, type_t *t, int is_field);
  34 extern void write_type_decl(FILE *f, const decl_spec_t *t, const char *name);
  35 extern void write_type_decl_left(FILE *f, const decl_spec_t *ds);
  36 extern unsigned int get_context_handle_offset( const type_t *type );
  37 extern unsigned int get_generic_handle_offset( const type_t *type );
  38 extern int needs_space_after(type_t *t);
  39 extern int is_object(const type_t *iface);
  40 extern int is_local(const attr_list_t *list);
  41 extern int count_methods(const type_t *iface);
  42 extern int need_stub(const type_t *iface);
  43 extern int need_proxy(const type_t *iface);
  44 extern int need_inline_stubs(const type_t *iface);
  45 extern int need_stub_files(const statement_list_t *stmts);
  46 extern int need_proxy_file(const statement_list_t *stmts);
  47 extern int need_proxy_delegation(const statement_list_t *stmts);
  48 extern int need_inline_stubs_file(const statement_list_t *stmts);
  49 extern const var_t *is_callas(const attr_list_t *list);
  50 extern void write_args(FILE *h, const var_list_t *arg, const char *name, int obj, int do_indent);
  51 extern const type_t* get_explicit_generic_handle_type(const var_t* var);
  52 extern const var_t *get_func_handle_var( const type_t *iface, const var_t *func,
  53                                          unsigned char *explicit_fc, unsigned char *implicit_fc );
  54 extern int has_out_arg_or_return(const var_t *func);
  55 extern int is_const_decl(const var_t *var);
  56
  57 extern void write_serialize_functions(FILE *file, const type_t *type, const type_t *iface);
  58
  59 static inline int is_ptr(const type_t *t)
  60 {
  61     return type_get_type(t) == TYPE_POINTER;
  62 }
  63
  64 static inline int is_array(const type_t *t)
  65 {
  66     return type_get_type(t) == TYPE_ARRAY;
  67 }
  68
  69 static inline int is_func(const type_t *t)
  70 {
  71     return type_get_type(t) == TYPE_FUNCTION;
  72 }
  73
  74 static inline int is_void(const type_t *t)
  75 {
  76     return type_get_type(t) == TYPE_VOID;
  77 }
  78
  79 static inline int is_declptr(const type_t *t)
  80 {
  81     return is_ptr(t) || (type_get_type(t) == TYPE_ARRAY && type_array_is_decl_as_ptr(t));
  82 }
  83
  84 static inline int is_conformant_array(const type_t *t)
  85 {
  86     return is_array(t) && type_array_has_conformance(t);
  87 }
  88
  89 static inline int last_ptr(const type_t *type)
  90 {
  91     return is_ptr(type) && !is_declptr(type_pointer_get_ref_type(type));
  92 }
  93
  94 static inline int last_array(const type_t *type)
  95 {
  96     return is_array(type) && !is_array(type_array_get_element_type(type));
  97 }
  98
  99 static inline int is_string_type(const attr_list_t *attrs, const type_t *type)
 100 {
 101     return ((is_attr(attrs, ATTR_STRING) || is_aliaschain_attr(type, ATTR_STRING))
 102             && (last_ptr(type) || last_array(type)));
 103 }
 104
 105 static inline int is_context_handle(const type_t *type)
 106 {
 107     const type_t *t;
 108     for (t = type;
 109          is_ptr(t) || type_is_alias(t);
 110          t = type_is_alias(t) ? type_alias_get_aliasee_type(t) : type_pointer_get_ref_type(t))
 111         if (is_attr(t->attrs, ATTR_CONTEXTHANDLE))
 112             return 1;
 113     return 0;
 114 }
 115
 116 #endif