removed varargs syntax from method constructors
[swftools.git] / lib / as3 / abc.c
index 5c9b87b..a820560 100644 (file)
@@ -97,8 +97,8 @@ static void parse_metadata(TAG*tag, abc_file_t*file, pool_t*pool)
         for(s=0;s<num;s++) {
             int i1 = swf_GetU30(tag);
             int i2 = swf_GetU30(tag);
-            char*key = i1?pool_lookup_string(pool, i1):"";
-            char*value = i2?pool_lookup_string(pool, i2):"";
+            const char*key = i1?pool_lookup_string(pool, i1):"";
+            const char*value = i2?pool_lookup_string(pool, i2):"";
             DEBUG printf("    %s=%s\n", key, value);
             array_append(items, key, strdup(value));
         }
@@ -170,52 +170,43 @@ void abc_class_add_interface(abc_class_t*c, multiname_t*interface)
     list_append(c->interfaces, multiname_clone(interface));
 }
 
-abc_method_body_t* add_method(abc_file_t*file, abc_class_t*cls, multiname_t*returntype, int num_params, va_list va)
+static abc_method_t* add_method(abc_file_t*file, abc_class_t*cls, multiname_t*returntype, char body)
 {
-    /* construct code (method body) object */
-    NEW(abc_method_body_t,c);
-    array_append(file->method_bodies, NO_KEY, c);
-    c->file = file;
-    c->traits = list_new();
-    c->code = 0;
-
     /* construct method object */
     NEW(abc_method_t,m);
+    m->index = array_length(file->methods);
     array_append(file->methods, NO_KEY, m);
-
     m->return_type = returntype;
 
-    int t;
-    for(t=0;t<num_params;t++) {
-       const char*param = va_arg(va, const char*);
-       list_append(m->parameters, multiname_fromstring(param));
+    if(body) {
+        /* construct code (method body) object */
+        NEW(abc_method_body_t,c);
+        array_append(file->method_bodies, NO_KEY, c);
+        c->index = array_length(file->method_bodies);
+        c->file = file;
+        c->traits = list_new();
+        c->code = 0;
+
+        /* crosslink the two objects */
+        m->body = c;
+        c->method = m;
     }
 
-    /* crosslink the two objects */
-    m->body = c;
-    c->method = m;
-
-    return c;
+    return m;
 }
 
-abc_method_body_t* abc_class_constructor(abc_class_t*cls, multiname_t*returntype, int num_params, ...) 
+abc_method_t* abc_class_constructor(abc_class_t*cls, multiname_t*returntype)
 {
-    va_list va;
-    va_start(va, num_params);
-    abc_method_body_t* c = add_method(cls->file, cls, returntype, num_params, va);
-    va_end(va);
-    cls->constructor = c->method;
-    return c;
+    abc_method_t* m = add_method(cls->file, cls, returntype, 1);
+    cls->constructor = m;
+    return m;
 }
 
-abc_method_body_t* abc_class_staticconstructor(abc_class_t*cls, multiname_t*returntype, int num_params, ...) 
+abc_method_t* abc_class_staticconstructor(abc_class_t*cls, multiname_t*returntype)
 {
-    va_list va;
-    va_start(va, num_params);
-    abc_method_body_t* c = add_method(cls->file, cls, returntype, num_params, va);
-    va_end(va);
-    cls->static_constructor = c->method;
-    return c;
+    abc_method_t* m = add_method(cls->file, cls, returntype, 1);
+    cls->static_constructor = m;
+    return m;
 }
 
 trait_t*trait_new(int type, multiname_t*name, int data1, int data2, constant_t*v)
@@ -253,27 +244,62 @@ trait_t*trait_new_method(multiname_t*name, abc_method_t*m)
     return trait;
 }
 
-abc_method_body_t* abc_class_method(abc_class_t*cls, multiname_t*returntype, char*name, int num_params, ...)
+abc_method_t* abc_class_method(abc_class_t*cls, multiname_t*returntype, multiname_t*name)
 {
     abc_file_t*file = cls->file;
-    va_list va;
-    va_start(va, num_params);
-    abc_method_body_t* c = add_method(cls->file, cls, returntype, num_params, va);
-    va_end(va);
-    list_append(cls->traits, trait_new_method(multiname_fromstring(name), c->method));
-    return c;
+    abc_method_t* m = add_method(cls->file, cls, returntype, !(cls->flags&CLASS_INTERFACE));
+    m->trait = trait_new_method(multiname_clone(name), m);
+    /* start assigning traits at position #1.
+       Weird things happen when assigning slot 0- slot 0 and 1 seem
+       to be identical */
+    m->trait->slot_id = list_length(cls->traits)+1;
+    list_append(cls->traits, m->trait);
+    return m;
+}
+abc_method_t* abc_class_staticmethod(abc_class_t*cls, multiname_t*returntype, multiname_t*name)
+{
+    abc_file_t*file = cls->file;
+    abc_method_t* m = add_method(cls->file, cls, returntype, !(cls->flags&CLASS_INTERFACE));
+    m->trait = trait_new_method(multiname_clone(name), m);
+    m->trait->slot_id = list_length(cls->static_traits)+1;
+    list_append(cls->static_traits, m->trait);
+    return m;
 }
 
-trait_t* abc_class_slot(abc_class_t*cls, char*name, multiname_t*type)
+trait_t* abc_class_slot(abc_class_t*cls, multiname_t*name, multiname_t*type)
 {
     abc_file_t*file = cls->file;
-    multiname_t*m_name = multiname_fromstring(name);
-    multiname_t*m_type = type;
+    multiname_t*m_name = multiname_clone(name);
+    multiname_t*m_type = multiname_clone(type);
     trait_t*t = trait_new_member(m_type, m_name, 0);
-    t->slot_id = list_length(cls->traits);
+    t->slot_id = list_length(cls->traits)+1;
     list_append(cls->traits, t);
     return t;
 }
+trait_t* abc_class_staticslot(abc_class_t*cls, multiname_t*name, multiname_t*type)
+{
+    abc_file_t*file = cls->file;
+    multiname_t*m_name = multiname_clone(name);
+    multiname_t*m_type = multiname_clone(type);
+    trait_t*t = trait_new_member(m_type, m_name, 0);
+    t->slot_id = list_length(cls->static_traits)+1;
+    list_append(cls->static_traits, t);
+    return t;
+}
+
+
+trait_t* abc_class_find_slotid(abc_class_t*cls, int slotid)
+{
+    trait_list_t*l;
+    trait_t*t=0;
+    for(l=cls->traits;l;l=l->next) {
+        if(l->trait->slot_id==slotid) {
+            t=l->trait; 
+            break;
+        }
+    }
+    return t;
+}
 
 void abc_method_body_addClassTrait(abc_method_body_t*code, char*multiname, int slotid, abc_class_t*cls)
 {
@@ -297,17 +323,14 @@ int abc_initscript_addClassTrait(abc_script_t*script, multiname_t*multiname, abc
     return slotid;
 }
 
-abc_script_t* abc_initscript(abc_file_t*file, multiname_t*returntype, int num_params, ...) 
+abc_script_t* abc_initscript(abc_file_t*file, multiname_t*returntype)
 {
-    va_list va;
-    va_start(va, num_params);
-    abc_method_body_t* c = add_method(file, 0, returntype, num_params, va);
+    abc_method_t*m = add_method(file, 0, returntype, 1);
     abc_script_t* s = malloc(sizeof(abc_script_t));
-    s->method = c->method;
+    s->method = m;
     s->traits = list_new();
     s->file = file;
     array_append(file->scripts, NO_KEY, s);
-    va_end(va);
     return s;
 }
 
@@ -321,7 +344,10 @@ static void dump_method(FILE*fo, const char*prefix, const char*type, const char*
     else
         return_type = strdup("void");
     char*paramstr = params_tostring(m->parameters);
-    fprintf(fo, "%s%s %s %s=%s %s (%d params)\n", prefix, type, return_type, name, m->name, paramstr, list_length(m->parameters));
+    fprintf(fo, "%s%s %s %s=%s %s (%d params, %d optional)\n", prefix, type, return_type, name, m->name, paramstr, 
+            list_length(m->parameters),
+            list_length(m->optional_parameters)
+            );
     free(paramstr);paramstr=0;
     free(return_type);return_type=0;
 
@@ -343,7 +369,12 @@ static void dump_method(FILE*fo, const char*prefix, const char*type, const char*
     if(flags&METHOD_SET_DXNS) {fprintf(fo, " set_dxns");flags&=~METHOD_SET_DXNS;}
     if(flags&METHOD_HAS_PARAM_NAMES) {fprintf(fo, " has_param_names");flags&=~METHOD_HAS_PARAM_NAMES;}
     if(flags) fprintf(fo, " %02x", flags);
-    fprintf(fo, "]\n");
+    fprintf(fo, "]");
+
+    if(m->trait) {
+        fprintf(fo, " slot:%d", m->trait->slot_id);
+    }
+    fprintf(fo, "\n");
 
 
     char prefix2[80];
@@ -406,10 +437,12 @@ static trait_list_t* traits_parse(TAG*tag, pool_t*pool, abc_file_t*file)
        if(kind == TRAIT_METHOD || kind == TRAIT_GETTER || kind == TRAIT_SETTER) { // method / getter / setter
            trait->disp_id = swf_GetU30(tag);
            trait->method = (abc_method_t*)array_getvalue(file->methods, swf_GetU30(tag));
+            trait->method->trait = trait;
            DEBUG printf("  method/getter/setter\n");
        } else if(kind == TRAIT_FUNCTION) { // function
            trait->slot_id =  swf_GetU30(tag);
            trait->method = (abc_method_t*)array_getvalue(file->methods, swf_GetU30(tag));
+            trait->method->trait = trait;
        } else if(kind == TRAIT_CLASS) { // class
            trait->slot_id = swf_GetU30(tag);
            trait->cls = (abc_class_t*)array_getvalue(file->classes, swf_GetU30(tag));
@@ -688,7 +721,6 @@ void* swf_ReadABC(TAG*tag)
         DEBUG printf("method %d) %s %s flags=%02x\n", t, m->name, params_tostring(m->parameters), m->flags);
 
         if(m->flags&0x08) {
-            /* TODO optional parameters */
             m->optional_parameters = list_new();
             int num = swf_GetU30(tag);
             int s;
@@ -703,10 +735,11 @@ void* swf_ReadABC(TAG*tag)
             /* debug information- not used by avm2 */
             multiname_list_t*l = m->parameters;
             while(l) {
-               char*name = pool_lookup_string(pool, swf_GetU30(tag));
+               const char*name = pool_lookup_string(pool, swf_GetU30(tag));
                 l = l->next;
             }
        }
+        m->index = array_length(file->methods);
        array_append(file->methods, NO_KEY, m);
     }
             
@@ -874,6 +907,7 @@ void swf_WriteABC(TAG*abctag, void*code)
             if(!(c->flags&CLASS_INTERFACE)) {
                 NEW(abc_method_t,m);array_append(file->methods, NO_KEY, m);
                 NEW(abc_method_body_t,body);array_append(file->method_bodies, NO_KEY, body);
+                // don't bother to set m->index
                 body->method = m; m->body = body;
                 __ returnvoid(body);
                 c->constructor = m;
@@ -1061,10 +1095,15 @@ void swf_WriteABC(TAG*abctag, void*code)
        //swf_SetU30(tag, c->old.max_scope_depth);
 
        swf_SetU30(tag, c->stats->max_stack);
-        if(list_length(c->method->parameters)+1 <= c->stats->local_count)
+
+        int param_num = list_length(c->method->parameters)+1;
+        if(c->method->flags&METHOD_NEED_REST)
+            param_num++;
+        if(param_num <= c->stats->local_count)
            swf_SetU30(tag, c->stats->local_count);
         else
-           swf_SetU30(tag, list_length(c->method->parameters)+1);
+           swf_SetU30(tag, param_num);
+
        swf_SetU30(tag, c->init_scope_depth);
        swf_SetU30(tag, c->stats->max_scope_depth+
                         c->init_scope_depth);
@@ -1247,7 +1286,7 @@ void swf_AddButtonLinks(SWF*swf, char stop_each_frame, char events)
     swf_SetU16(tag, 0);
     swf_SetString(tag, "rfx.MainTimeline");
 
-    c = abc_class_staticconstructor(cls, 0, 0);
+    c = abc_class_staticconstructor(cls, 0)->body;
     c->old.max_stack = 1;
     c->old.local_count = 1;
     c->old.init_scope_depth = 9;
@@ -1257,7 +1296,7 @@ void swf_AddButtonLinks(SWF*swf, char stop_each_frame, char events)
     __ pushscope(c);
     __ returnvoid(c);
 
-    c = abc_class_constructor(cls, 0, 0);
+    c = abc_class_constructor(cls, 0)->body;
     c->old.max_stack = 3;
     c->old.local_count = 1;
     c->old.init_scope_depth = 10;
@@ -1293,7 +1332,7 @@ void swf_AddButtonLinks(SWF*swf, char stop_each_frame, char events)
                 __ getlex(c,framename);
                 __ callpropvoid(c,"[package]::addFrameScript",2);
 
-                f = abc_class_method(cls, 0, framename, 0);
+                f = abc_class_method(cls, 0, multiname_fromstring(framename))->body;
                 f->old.max_stack = 3;
                 f->old.local_count = 1;
                 f->old.init_scope_depth = 10;
@@ -1321,7 +1360,9 @@ void swf_AddButtonLinks(SWF*swf, char stop_each_frame, char events)
                 needs_framescript = 1;
 
                 abc_method_body_t*h =
-                    abc_class_method(cls, 0, functionname, 1, "flash.events::MouseEvent");
+                    abc_class_method(cls, 0, multiname_fromstring(functionname))->body;
+                list_append(h->method->parameters, multiname_fromstring("flash.events::MouseEvent"));
+
                 h->old.max_stack = 6;
                 h->old.local_count = 2;
                 h->old.init_scope_depth = 10;
@@ -1396,13 +1437,13 @@ void swf_AddButtonLinks(SWF*swf, char stop_each_frame, char events)
             char buttonname[80];
             sprintf(buttonname, "::button%d", swf_GetDefineID(tag));
             multiname_t*s = multiname_fromstring(buttonname);
-            abc_class_slot(cls, buttonname, s);
+            abc_class_slot(cls, multiname_fromstring(buttonname), s);
         }
         tag = tag->next;
     }
 
 
-    abc_script_t*s = abc_initscript(file, 0, 0);
+    abc_script_t*s = abc_initscript(file, 0);
     c = s->method->body;
     c->old.max_stack = 2;
     c->old.local_count = 1;