check for a small parser bug, too
[swftools.git] / lib / as3 / registry.c
index 0e3f3db..069f923 100644 (file)
+/* registry.c
+
+   Routines for compiling Flash2 AVM2 ABC Actionscript
+
+   Extension module for the rfxswf library.
+   Part of the swftools package.
+
+   Copyright (c) 2008 Matthias Kramm <kramm@quiss.org>
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#include <assert.h>
 #include "pool.h"
 #include "registry.h"
+#include "builtin.h"
+
+static dict_t*classes=0;
+
+// ----------------------- class signature ------------------------------
 
-static namespace_t static_empty_ns = {
-    ACCESS_PACKAGE, ""
+char classinfo_equals(classinfo_t*c1, classinfo_t*c2)
+{
+    if(!!c1 != !!c2)
+        return 0;
+    /* notice: access right is *not* respected */
+    if(!strcmp(c1->name, c2->name) &&
+       !strcmp(c1->package, c2->package)) {
+        return 1;
+    }
+    return 0;
+}
+static unsigned int classinfo_hash(classinfo_t*c)
+{
+    unsigned int hash = 0;
+    hash = crc32_add_string(hash, c->package);
+    hash = crc32_add_string(hash, c->name);
+    return hash;
+}
+
+static void* dummy_clone(void*other) {return other;}
+static void dummy_destroy(classinfo_t*c) {}
+
+type_t classinfo_type = {
+    hash: (hash_func)classinfo_hash,
+    equals: (equals_func)classinfo_equals,
+    /* all signatures are static */
+    dup: (dup_func)dummy_clone,
+    free: (free_func)dummy_destroy,
 };
-static multiname_t static_object_class = {
-    QNAME, &static_empty_ns, 0, "Object"
+
+// ----------------------- function signature ------------------------------
+
+static char memberinfo_equals(memberinfo_t*f1, memberinfo_t*f2)
+{
+    return !strcmp(f1->name, f2->name);
+}
+static unsigned int memberinfo_hash(memberinfo_t*f)
+{
+    return crc32_add_string(0, f->name);
+}
+type_t memberinfo_type = {
+    hash: (hash_func)memberinfo_hash,
+    equals: (equals_func)memberinfo_equals,
+    /* all signatures are static */
+    dup: (dup_func)dummy_clone,
+    free: (free_func)dummy_destroy,
 };
 
-multiname_t* registry_getobjectclass()
+// ------------------------- constructors --------------------------------
+
+#define AVERAGE_NUMBER_OF_MEMBERS 8
+classinfo_t* classinfo_register(int access, const char*package, const char*name, int num_interfaces)
+{
+    classinfo_t*c = rfx_calloc(sizeof(classinfo_t)+(sizeof(classinfo_t*)*(num_interfaces+1)));
+    c->interfaces[0] = 0;
+    c->access = access;
+    c->package = package;
+    c->name = name;
+    dict_put(classes, c, c);
+    dict_init(&c->members,AVERAGE_NUMBER_OF_MEMBERS);
+    return c;
+}
+
+static dict_t* classobjects = 0;
+classinfo_t* registry_getclassclass(classinfo_t*a) {
+    if(!classobjects) {
+        classobjects = dict_new2(&ptr_type);
+    } else {
+        classinfo_t*c = dict_lookup(classobjects, a);
+        if(c)
+            return c;
+    }
+
+    classinfo_t*c = rfx_calloc(sizeof(classinfo_t)+sizeof(classinfo_t*));
+    c->access = ACCESS_PUBLIC;
+    c->package = "";
+    c->name = "Class";
+    dict_init(&c->members,1);
+    c->cls = a;
+
+    dict_put(classobjects, a, c);
+    return c;
+}
+
+memberinfo_t* memberinfo_register(classinfo_t*cls, const char*name, U8 kind)
 {
-    return &static_object_class;
+    NEW(memberinfo_t,m);
+    m->kind = kind;
+    m->name = strdup(name);
+    m->parent = cls;
+    dict_put(&cls->members, name, m);
+    return m;
 }
-multiname_t* registry_findclass(const char*s)
+memberinfo_t* memberinfo_register_global(U8 access, const char*package, const char*name, U8 kind)
 {
-    multiname_t*m = multiname_fromstring(s);
+    NEW(memberinfo_t, m);
+    m->kind = kind;
+    m->flags = FLAG_STATIC;
+    m->name = name;
+    m->parent = 0;
+
+    classinfo_t*c = classinfo_register(access, package, name, 0);
+    c->function = m;
+    c->flags |= FLAG_METHOD;
     return m;
 }
-multiname_t* registry_getsuperclass(multiname_t*m)
+
+
+// --------------- builtin classes (from builtin.c) ----------------------
+
+void registry_init()
+{
+    classes = builtin_getclasses();
+}
+classinfo_t* registry_safefindclass(const char*package, const char*name)
+{
+    classinfo_t*c = registry_findclass(package, name);
+    assert(c);
+    return c;
+}
+
+classinfo_t* registry_findclass(const char*package, const char*name)
+{
+    assert(classes);
+    classinfo_t tmp;
+    tmp.package = package;
+    tmp.name = name;
+    classinfo_t* c = (classinfo_t*)dict_lookup(classes, &tmp);
+    /*if(c)
+        printf("%s.%s->%08x (%s.%s)\n", package, name, c, c->package, c->name);*/
+    return c;
+}
+void registry_dumpclasses()
+{
+    int t;
+    for(t=0;t<classes->hashsize;t++) {
+        dictentry_t*e = classes->slots[t];
+        while(e) {
+            dictentry_t*next = e->next;
+            classinfo_t*i = (classinfo_t*)e->key;
+            printf("%s.%s\n", i->package, i->name);
+            e = e->next;
+        }
+    }
+}
+
+memberinfo_t* registry_findmember(classinfo_t*cls, const char*name, char recursive)
+{
+    if(!recursive) {
+        return (memberinfo_t*)dict_lookup(&cls->members, name);
+    }
+    /* look at classes directly extended by this class */
+    memberinfo_t*m = 0;
+    classinfo_t*s = cls;
+    while(s) {
+        m = (memberinfo_t*)dict_lookup(&s->members, name);
+        if(m) return m;
+        s = s->superclass;
+    }
+    /* look at interfaces, and parent interfaces */
+    int t=0;
+    while(cls->interfaces[t]) {
+        classinfo_t*s = cls->interfaces[t];
+        while(s) {
+            m = (memberinfo_t*)dict_lookup(&s->members, name);
+            if(m) return m;
+            s = s->superclass;
+        }
+        t++;
+    }
+    return 0;
+
+}
+void registry_fill_multiname(multiname_t*m, namespace_t*n, classinfo_t*c)
+{
+    m->type = QNAME;
+    m->ns = n;
+    m->ns->access = c->access;
+    m->ns->name = (char*)c->package;
+    m->name = c->name;
+    m->namespace_set = 0;
+}
+multiname_t* classinfo_to_multiname(classinfo_t*cls)
+{
+    if(!cls)
+        return 0;
+    multiname_t*m=0;
+    namespace_t ns = {cls->access, (char*)cls->package};
+    return multiname_new(&ns,cls->name);
+}
+
+// ----------------------- memberinfo methods ------------------------------
+
+/* function and class pointers get their own type class */
+static dict_t* functionobjects = 0;
+classinfo_t* memberinfo_asclass(memberinfo_t*f) {
+    if(!functionobjects) {
+        functionobjects = dict_new2(&ptr_type);
+    } else {
+        classinfo_t*c = dict_lookup(functionobjects, f);
+        if(c)
+            return c;
+    }
+
+    classinfo_t*c = rfx_calloc(sizeof(classinfo_t)+sizeof(classinfo_t*));
+    c->access = ACCESS_PUBLIC;
+    c->package = "";
+    c->name = "Function";
+    
+    dict_init(&c->members,1);
+    c->function = f;
+
+    dict_put(functionobjects, f, c);
+    return c;
+}
+
+classinfo_t* memberinfo_gettype(memberinfo_t*f)
 {
-    if(m->name && !strcmp(m->name, "Object"))
-            return 0;
-    return &static_object_class;
+    if(f) {
+       if(f->kind == MEMBER_METHOD) {
+           return memberinfo_asclass(f);
+       } else {
+           return f->type;
+       }
+    } else {
+       return registry_getanytype();
+    }
 }
+// ----------------------- builtin types ------------------------------
+classinfo_t* registry_getanytype() {return 0;}
 
+char registry_isfunctionclass(classinfo_t*c) {
+    return (c && c->package && c->name && 
+            !strcmp(c->package, "") && !strcmp(c->name, "Function"));
+}
+char registry_isclassclass(classinfo_t*c) {
+    return (c && c->package && c->name && 
+            !strcmp(c->package, "") && !strcmp(c->name, "Class"));
+}
+
+classinfo_t* registry_getobjectclass() {
+    static classinfo_t*c = 0;
+    if(!c) c = registry_safefindclass("", "Object");
+    return c;
+}
+classinfo_t* registry_getstringclass() {
+    static classinfo_t*c = 0;
+    if(!c) c = registry_safefindclass("", "String");
+    return c;
+}
+classinfo_t* registry_getarrayclass() {
+    static classinfo_t*c = 0;
+    if(!c) c = registry_safefindclass("", "Array");
+    return c;
+}
+classinfo_t* registry_getintclass() {
+    static classinfo_t*c = 0;
+    if(!c) c = registry_safefindclass("", "int");
+    return c;
+}
+classinfo_t* registry_getuintclass() {
+    static classinfo_t*c = 0;
+    if(!c) c = registry_safefindclass("", "uint");
+    return c;
+}
+classinfo_t* registry_getbooleanclass() {
+    static classinfo_t*c = 0;
+    if(!c) c = registry_safefindclass("", "Boolean");
+    return c;
+}
+classinfo_t* registry_getnumberclass() {
+    static classinfo_t*c = 0;
+    if(!c) c = registry_safefindclass("", "Number");
+    return c;
+}
+classinfo_t* registry_getregexpclass() {
+    static classinfo_t*c = 0;
+    if(!c) c = registry_safefindclass("", "RegExp");
+    return c;
+}
+classinfo_t* registry_getMovieClip() {
+    static classinfo_t*c = 0;
+    if(!c) c = registry_safefindclass("flash.display", "MovieClip");
+    return c;
+}
+
+// ----------------------- builtin dummy types -------------------------
+classinfo_t nullclass = {
+    ACCESS_PACKAGE, 0, "", "null", 0, 0, 0,
+};
+classinfo_t* registry_getnullclass() {
+    return &nullclass;
+}
+
+// ---------------------------------------------------------------------
+namespace_t flags2namespace(int flags, char*package)
+{
+    namespace_t ns;
+    ns.name = package;
+    if(flags&FLAG_PUBLIC)  {
+        ns.access = ACCESS_PACKAGE;
+    } else if(flags&FLAG_PRIVATE) {
+        ns.access = ACCESS_PRIVATE;
+    } else if(flags&FLAG_PROTECTED) {
+        ns.access = ACCESS_PROTECTED;
+    } else if(flags&FLAG_NAMESPACE_ADOBE) {
+        ns.access = ACCESS_NAMESPACE;
+        assert(!package || !package[0]);
+        ns.name = "http://adobe.com/AS3/2006/builtin";
+    } else {
+        ns.access = ACCESS_PACKAGEINTERNAL;
+    }
+    return ns;
+}