lib/as3/registry.c

   1 /* registry.c
   2
   3    Routines for compiling Flash2 AVM2 ABC Actionscript
   4
   5    Extension module for the rfxswf library.
   6    Part of the swftools package.
   7
   8    Copyright (c) 2008 Matthias Kramm <kramm@quiss.org>
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  23
  24 #include <assert.h>
  25 #include "pool.h"
  26 #include "registry.h"
  27 #include "builtin.h"
  28
  29 static dict_t*classes=0;
  30
  31 // ----------------------- class signature ------------------------------
  32
  33 char classinfo_equals(classinfo_t*c1, classinfo_t*c2)
  34 {
  35     if(!!c1 != !!c2)
  36         return 0;
  37     /* notice: access right is *not* respected */
  38     if(!strcmp(c1->name, c2->name) &&
  39        !strcmp(c1->package, c2->package)) {
  40         return 1;
  41     }
  42     return 0;
  43 }
  44 static unsigned int classinfo_hash(classinfo_t*c)
  45 {
  46     unsigned int hash = 0;
  47     hash = crc32_add_string(hash, c->package);
  48     hash = crc32_add_string(hash, c->name);
  49     return hash;
  50 }
  51
  52 static void* dummy_clone(void*other) {return other;}
  53 static void dummy_destroy(classinfo_t*c) {}
  54
  55 type_t classinfo_type = {
  56     hash: (hash_func)classinfo_hash,
  57     equals: (equals_func)classinfo_equals,
  58     /* all signatures are static */
  59     dup: (dup_func)dummy_clone,
  60     free: (free_func)dummy_destroy,
  61 };
  62
  63 // ----------------------- function signature ------------------------------
  64
  65 static char memberinfo_equals(memberinfo_t*f1, memberinfo_t*f2)
  66 {
  67     return !strcmp(f1->name, f2->name);
  68 }
  69 static unsigned int memberinfo_hash(memberinfo_t*f)
  70 {
  71     return crc32_add_string(0, f->name);
  72 }
  73 type_t memberinfo_type = {
  74     hash: (hash_func)memberinfo_hash,
  75     equals: (equals_func)memberinfo_equals,
  76     /* all signatures are static */
  77     dup: (dup_func)dummy_clone,
  78     free: (free_func)dummy_destroy,
  79 };
  80
  81 // ------------------------- constructors --------------------------------
  82
  83 #define AVERAGE_NUMBER_OF_MEMBERS 8
  84 classinfo_t* classinfo_register(int access, char*package, char*name)
  85 {
  86     NEW(classinfo_t,c);
  87     c->access = access;
  88     c->package = package;
  89     c->name = name;
  90     dict_put(classes, c, c);
  91     dict_init(&c->members,AVERAGE_NUMBER_OF_MEMBERS);
  92     return c;
  93 }
  94 memberinfo_t* memberinfo_register(classinfo_t*cls, const char*name, U8 kind)
  95 {
  96     NEW(memberinfo_t,m);
  97     m->kind = kind;
  98     m->name = strdup(name);
  99     dict_put(&cls->members, name, m);
 100     return m;
 101 }
 102
 103 // --------------- builtin classes (from builtin.c) ----------------------
 104
 105 void registry_init()
 106 {
 107     classes = builtin_getclasses();
 108 }
 109 classinfo_t* registry_safefindclass(const char*package, const char*name)
 110 {
 111     classinfo_t*c = registry_findclass(package, name);
 112     assert(c);
 113     return c;
 114 }
 115 classinfo_t* registry_findclass(const char*package, const char*name)
 116 {
 117     assert(classes);
 118     classinfo_t tmp;
 119     tmp.package = package;
 120     tmp.name = name;
 121     classinfo_t* c = (classinfo_t*)dict_lookup(classes, &tmp);
 122     /*if(c)
 123         printf("%s.%s->%08x (%s.%s)\n", package, name, c, c->package, c->name);*/
 124     return c;
 125 }
 126 memberinfo_t* registry_findmember(classinfo_t*cls, const char*name)
 127 {
 128     return (memberinfo_t*)dict_lookup(&cls->members, name);
 129 }
 130 void registry_fill_multiname(multiname_t*m, namespace_t*n, classinfo_t*c)
 131 {
 132     m->type = QNAME;
 133     m->ns = n;
 134     m->ns->access = c->access;
 135     m->ns->name = (char*)c->package;
 136     m->name = c->name;
 137     m->namespace_set = 0;
 138 }
 139 multiname_t* classinfo_to_multiname(classinfo_t*cls)
 140 {
 141     if(!cls)
 142         return 0;
 143     multiname_t*m=0;
 144     namespace_t*ns = namespace_new(cls->access, cls->package);
 145     return multiname_new(ns,cls->name);
 146 }
 147
 148 // ----------------------- builtin types ------------------------------
 149 classinfo_t* registry_getanytype() {return 0;/*FIXME*/}
 150
 151 classinfo_t* registry_getobjectclass() {return registry_safefindclass("", "Object");}
 152 classinfo_t* registry_getstringclass() {return registry_safefindclass("", "String");}
 153 classinfo_t* registry_getintclass() {return registry_safefindclass("", "int");}
 154 classinfo_t* registry_getuintclass() {return registry_safefindclass("", "uint");}
 155 classinfo_t* registry_getbooleanclass() {return registry_safefindclass("", "Boolean");}
 156 classinfo_t* registry_getnumberclass() {return registry_safefindclass("", "Number");}
 157 classinfo_t* registry_getMovieClip() {return registry_safefindclass("flash.display", "MovieClip");}
 158
 159 // ----------------------- builtin dummy types -------------------------
 160 classinfo_t nullclass = {
 161     ACCESS_PACKAGE, 0, "", "null", 0, 0, 0,
 162 };
 163 classinfo_t* registry_getnullclass() {
 164     return &nullclass;
 165 }
 166