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 class_signature_equals(class_signature_t*c1, class_signature_t*c2)
  34 {
  35     /* notice: access right is *not* respected */
  36     if(!strcmp(c1->name, c2->name) &&
  37        !strcmp(c1->package, c2->package)) {
  38         return 1;
  39     }
  40     return 0;
  41 }
  42 static unsigned int class_signature_hash(class_signature_t*c)
  43 {
  44     unsigned int hash = 0;
  45     hash = crc32_add_string(hash, c->package);
  46     hash = crc32_add_string(hash, c->name);
  47     return hash;
  48 }
  49
  50 static void* dummy_clone(void*other) {return other;}
  51 static void dummy_destroy(class_signature_t*c) {}
  52
  53 type_t class_signature_type = {
  54     hash: (hash_func)class_signature_hash,
  55     equals: (equals_func)class_signature_equals,
  56     /* all signatures are static */
  57     dup: (dup_func)dummy_clone,
  58     free: (free_func)dummy_destroy,
  59 };
  60
  61 // ----------------------- function signature ------------------------------
  62
  63 static char function_signature_equals(function_signature_t*f1, function_signature_t*f2)
  64 {
  65     return !strcmp(f1->name, f2->name);
  66 }
  67 static unsigned int function_signature_hash(function_signature_t*f)
  68 {
  69     return crc32_add_string(0, f->name);
  70 }
  71 type_t function_signature_type = {
  72     hash: (hash_func)function_signature_hash,
  73     equals: (equals_func)function_signature_equals,
  74     /* all signatures are static */
  75     dup: (dup_func)dummy_clone,
  76     free: (free_func)dummy_destroy,
  77 };
  78
  79 // ------------------------- constructors --------------------------------
  80
  81 class_signature_t* class_signature_register(int access, char*package, char*name)
  82 {
  83     class_signature_t*c = malloc(sizeof(class_signature_t));
  84     c->access = access;
  85     c->package = package;
  86     c->name = name;
  87     dict_put(classes, c, c);
  88     return c;
  89 }
  90
  91 // --------------- builtin classes (from builtin.c) ----------------------
  92
  93 void registry_init()
  94 {
  95     classes = builtin_getclasses();
  96 }
  97 class_signature_t* registry_safefindclass(const char*package, const char*name)
  98 {
  99     class_signature_t*c = registry_findclass(package, name);
 100     if(!c)
 101         printf("%s.%s\n", package, name);
 102     assert(c);
 103     return c;
 104 }
 105 class_signature_t* registry_findclass(const char*package, const char*name)
 106 {
 107     assert(classes);
 108     class_signature_t tmp;
 109     tmp.package = package;
 110     tmp.name = name;
 111     class_signature_t* c = (class_signature_t*)dict_lookup(classes, &tmp);
 112     return c;
 113 }
 114 void registry_fill_multiname(multiname_t*m, namespace_t*n, class_signature_t*c)
 115 {
 116     m->type = QNAME;
 117     m->ns = n;
 118     m->ns->access = c->access;
 119     m->ns->name = (char*)c->package;
 120     m->name = c->name;
 121     m->namespace_set = 0;
 122 }
 123 multiname_t* class_signature_to_multiname(class_signature_t*cls)
 124 {
 125     if(!cls)
 126         return 0;
 127     multiname_t*m=0;
 128     namespace_t*ns = namespace_new(cls->access, cls->package);
 129     return multiname_new(ns,cls->name);
 130 }
 131
 132 // ----------------------- builtin types ------------------------------
 133 class_signature_t* registry_getanytype() {return 0;/*FIXME*/}
 134
 135 class_signature_t* registry_getobjectclass() {return registry_safefindclass("", "Object");}
 136 class_signature_t* registry_getstringclass() {return registry_safefindclass("", "String");}
 137 class_signature_t* registry_getintclass() {return registry_safefindclass("", "int");}
 138 class_signature_t* registry_getuintclass() {return registry_safefindclass("", "uint");}
 139 class_signature_t* registry_getbooleanclass() {return registry_safefindclass("", "Boolean");}
 140 class_signature_t* registry_getnumberclass() {return registry_safefindclass("", "Number");}
 141 class_signature_t* registry_getMovieClip() {return registry_safefindclass("flash.display", "MovieClip");}
 142
 143 // ----------------------- builtin dummy types -------------------------
 144 class_signature_t nullclass = {
 145     ACCESS_PACKAGE, "", "null", 0, 0, 0,
 146 };
 147 class_signature_t* registry_getnullclass() {
 148     return &nullclass;
 149 }
 150