+ free(l->methodstate);l->methodstate=0;
+ l = l->next;
+ }
+ if(m->header) {
+ c = code_append(c, m->header);
+ m->header = 0;
+ }
+ if(m->is_constructor && !m->has_super) {
+ // call default constructor
+ c = abc_getlocal_0(c);
+ c = abc_constructsuper(c, 0);
+ }
+
+ if(m->slots) {
+ /* all parameters that are used by inner functions
+ need to be copied from local to slot */
+ parserassert(m->activation_var);
+ DICT_ITERATE_ITEMS(m->slots,char*,name,variable_t*,v) {
+ if(v->is_parameter) {
+ c = abc_getlocal(c, m->activation_var);
+ c = abc_getlocal(c, v->index);
+ c = abc_setslot(c, v->index);
+ }
+ }
+ }
+ list_free(m->innerfunctions);
+ m->innerfunctions = 0;
+ return c;
+}
+
+
+static code_t* wrap_function(code_t*c,code_t*header, code_t*body)
+{
+ c = code_append(c, header);
+ c = code_append(c, var_block(body, state->method->no_variable_scoping?state->allvars:state->vars));
+ /* append return if necessary */
+ if(!c || (c->opcode != OPCODE_RETURNVOID &&
+ c->opcode != OPCODE_RETURNVALUE)) {
+ c = abc_returnvoid(c);
+ }
+ return c;
+}
+
+static void startpackage(char*name)
+{
+ new_state();
+ state->package = strdup(name);
+}
+static void endpackage()
+{
+ //used e.g. in classinfo_register:
+ //free(state->package);state->package=0;
+ old_state();
+}
+
+#define FLAG_PUBLIC 256
+#define FLAG_PROTECTED 512
+#define FLAG_PRIVATE 1024
+#define FLAG_PACKAGEINTERNAL 2048
+#define FLAG_NAMESPACE 4096
+
+static namespace_t modifiers2access(modifiers_t*mod)
+{
+ namespace_t ns;
+ ns.access = 0;
+ ns.name = "";
+ if(mod->flags&FLAG_NAMESPACE) {
+ if(mod->flags&(FLAG_PRIVATE|FLAG_PROTECTED|FLAG_PACKAGEINTERNAL))
+ syntaxerror("invalid combination of access levels and namespaces");
+ ns.access = ACCESS_NAMESPACE;
+ state_t*s = state;
+ const char*url = (const char*)trie_lookup(active_namespaces, mod->ns);
+ if(!url) {
+ /* shouldn't happen- the tokenizer only reports something as a namespace
+ if it was already registered */
+ trie_dump(active_namespaces);
+ syntaxerror("unknown namespace: %s", mod->ns);
+ }
+ ns.name = url;
+ } else if(mod->flags&FLAG_PUBLIC) {
+ if(mod->flags&(FLAG_PRIVATE|FLAG_PROTECTED|FLAG_PACKAGEINTERNAL))
+ syntaxerror("invalid combination of access levels");
+ ns.access = ACCESS_PACKAGE;
+ } else if(mod->flags&FLAG_PRIVATE) {
+ if(mod->flags&(FLAG_PUBLIC|FLAG_PROTECTED|FLAG_PACKAGEINTERNAL))
+ syntaxerror("invalid combination of access levels");
+ ns.access = ACCESS_PRIVATE;
+ } else if(mod->flags&FLAG_PROTECTED) {
+ if(mod->flags&(FLAG_PUBLIC|FLAG_PRIVATE|FLAG_PACKAGEINTERNAL))
+ syntaxerror("invalid combination of access levels");
+ ns.access = ACCESS_PROTECTED;
+ } else {
+ ns.access = ACCESS_PACKAGEINTERNAL;
+ }
+ return ns;
+}
+static slotinfo_t* find_class(const char*name);
+
+static memberinfo_t* findmember_nsset(classinfo_t*cls, const char*name, char recurse)
+{
+ return registry_findmember_nsset(cls, state->active_namespace_urls, name, recurse);
+}
+
+static void innerfunctions2vars(methodstate_t*m)
+{
+ methodstate_list_t*l = m->innerfunctions;
+ while(l) {
+ methodstate_t*m = l->methodstate;
+
+ variable_t* v = new_variable2(state->method, m->info->name, TYPE_FUNCTION(m->info), 0, 0);
+ m->var_index = v->index;
+ if(m->is_a_slot)
+ m->slot_index = m->is_a_slot;
+ v->is_inner_method = m;
+ l = l->next;
+ }
+}
+
+static void function_initvars(methodstate_t*m, char has_params, params_t*params, int flags, char var0)
+{
+ if(var0) {
+ int index = -1;
+ if(m->inner)
+ index = new_variable(m, "this", 0, 0, 0);
+ else if(!m->is_global)
+ index = new_variable(m, (flags&FLAG_STATIC)?"class":"this", state->cls?state->cls->info:0, 0, 0);
+ else
+ index = new_variable(m, "globalscope", 0, 0, 0);
+ if(index) {
+ DICT_ITERATE_ITEMS(state->vars, char*, name, variable_t*, v) {
+ printf("%s %d\n", name, v->index);
+ }
+ }
+ parserassert(!index);
+ }
+
+ if(has_params) {
+ param_list_t*p=0;
+ for(p=params->list;p;p=p->next) {
+ variable_t*v = new_variable2(m, p->param->name, p->param->type, 0, 1);
+ v->is_parameter = 1;
+ }
+ if(as3_pass==2 && m->need_arguments) {
+ /* arguments can never be used by an innerfunction (the inner functions
+ have their own arguments var), so it's ok to not initialize this until
+ pass 2. (We don't know whether we need it before, anyway) */
+ variable_t*v = new_variable2(m, "arguments", TYPE_ARRAY, 0, 0);
+ m->need_arguments = v->index;
+ }
+ }
+
+ innerfunctions2vars(m);
+
+ if(as3_pass==2) {
+ m->scope_code = add_scope_code(m->scope_code, m, 0);
+ if(m->slots) {
+ /* exchange unresolved identifiers with the actual objects */
+ DICT_ITERATE_ITEMS(m->slots, char*, name, variable_t*, v) {
+ if(v->type && v->type->kind == INFOTYPE_UNRESOLVED) {
+ classinfo_t*type = (classinfo_t*)registry_resolve((slotinfo_t*)v->type);
+ if(!type || type->kind != INFOTYPE_CLASS) {
+ syntaxerror("Couldn't find class %s::%s (%s)", v->type->package, v->type->name, name);
+ }
+ v->type = type;
+ }
+ }
+ }
+ }
+}
+
+
+char*as3_globalclass=0;
+static void startclass(modifiers_t* mod, char*classname, classinfo_t*extends, classinfo_list_t*implements)
+{
+ if(state->cls) {
+ syntaxerror("inner classes now allowed");
+ }
+
+ new_state();
+ token_list_t*t=0;
+ classinfo_list_t*mlist=0;
+
+ if(mod->flags&~(FLAG_PACKAGEINTERNAL|FLAG_PUBLIC|FLAG_FINAL|FLAG_DYNAMIC|FLAG_INTERFACE))
+ syntaxerror("invalid modifier(s)");
+
+ if((mod->flags&(FLAG_PUBLIC|FLAG_PACKAGEINTERNAL)) == (FLAG_PUBLIC|FLAG_PACKAGEINTERNAL))
+ syntaxerror("public and internal not supported at the same time.");
+
+ if((mod->flags&(FLAG_PROTECTED|FLAG_STATIC)) == (FLAG_PROTECTED|FLAG_STATIC))
+ syntaxerror("protected and static not supported at the same time.");
+
+ //if(!(mod->flags&FLAG_INTERFACE) && !extends) {
+ if(!(mod->flags&FLAG_INTERFACE) && !extends) {
+ // all classes extend object
+ extends = registry_getobjectclass();
+ }
+
+ /* create the class name, together with the proper attributes */
+ int access=0;
+ char*package=0;
+
+ if(!(mod->flags&FLAG_PUBLIC) && state->package==internal_filename_package) {
+ access = ACCESS_PRIVATE; package = internal_filename_package;
+ } else if(!(mod->flags&FLAG_PUBLIC) && state->package!=internal_filename_package) {
+ access = ACCESS_PACKAGEINTERNAL; package = state->package;
+ } else if(state->package!=internal_filename_package) {
+ access = ACCESS_PACKAGE; package = state->package;
+ } else {
+ syntaxerror("public classes only allowed inside a package");
+ }
+
+ if(as3_pass==1) {
+ state->cls = rfx_calloc(sizeof(classstate_t));
+ state->cls->init = rfx_calloc(sizeof(methodstate_t));
+ state->cls->static_init = rfx_calloc(sizeof(methodstate_t));
+ state->cls->static_init->is_static=FLAG_STATIC;
+ /* notice: we make no effort to initialize the top variable (local0) here,
+ even though it has special meaning. We just rely on the fact
+ that pass 1 won't do anything with variables */
+
+ dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->cls);
+
+ /* set current method to constructor- all code within the class-level (except
+ static variable initializations) will be executed during construction time */
+ state->method = state->cls->init;
+
+ if(registry_find(package, classname)) {
+ syntaxerror("Package \"%s\" already contains a class called \"%s\"", package, classname);
+ }
+ /* build info struct */
+ int num_interfaces = (list_length(implements));
+ state->cls->info = classinfo_register(access, package, classname, num_interfaces);
+ state->cls->info->flags |= mod->flags & (FLAG_DYNAMIC|FLAG_INTERFACE|FLAG_FINAL);
+ state->cls->info->superclass = extends;
+
+ int pos = 0;
+ classinfo_list_t*l = implements;
+ for(l=implements;l;l=l->next) {
+ state->cls->info->interfaces[pos++] = l->classinfo;
+ }
+ }
+
+ if(as3_pass == 2) {
+ state->cls = dict_lookup(global->token2info, (void*)(ptroff_t)as3_tokencount);
+
+ parserassert(state->cls && state->cls->info);
+
+ state->method = state->cls->static_init;
+
+ function_initvars(state->cls->init, 0, 0, 0, 1);
+ state->cls->static_init->variable_count=1;
+ function_initvars(state->cls->static_init, 0, 0, 0, 0);
+
+ if(extends && (extends->flags & FLAG_FINAL))
+ syntaxerror("Can't extend final class '%s'", extends->name);
+
+ int pos = 0;
+ while(state->cls->info->interfaces[pos]) {
+ if(!(state->cls->info->interfaces[pos]->flags & FLAG_INTERFACE))
+ syntaxerror("'%s' is not an interface",
+ state->cls->info->interfaces[pos]->name);
+ pos++;
+ }
+
+ /* generate the abc code for this class */
+ MULTINAME(classname2,state->cls->info);
+ multiname_t*extends2 = sig2mname(extends);
+
+ /* don't add the class to the class index just yet- that will be done later
+ by initscript */
+ state->cls->abc = abc_class_new(0, &classname2, extends2);
+ state->cls->abc->file = global->file;
+
+ multiname_destroy(extends2);
+ if(state->cls->info->flags&FLAG_FINAL) abc_class_final(state->cls->abc);
+ if(!(state->cls->info->flags&FLAG_DYNAMIC)) abc_class_sealed(state->cls->abc);
+ if(state->cls->info->flags&FLAG_INTERFACE) {
+ abc_class_interface(state->cls->abc);
+ }
+
+ for(mlist=implements;mlist;mlist=mlist->next) {
+ MULTINAME(m, mlist->classinfo);
+ abc_class_add_interface(state->cls->abc, &m);
+ }
+
+ state->cls->dependencies = parsedclass_new(state->cls->info, state->cls->abc);
+ list_append(global->classes, state->cls->dependencies);
+
+ /* flash.display.MovieClip handling */
+ if(!as3_globalclass && (mod->flags&FLAG_PUBLIC) && slotinfo_equals((slotinfo_t*)registry_getMovieClip(),(slotinfo_t*)extends)) {
+ if(state->package && state->package[0]) {
+ as3_globalclass = concat3(state->package, ".", classname);
+ } else {
+ as3_globalclass = strdup(classname);
+ }
+ }
+ }
+}
+
+static void endclass()
+{
+ if(as3_pass == 2) {
+ if(!state->cls->has_constructor && !(state->cls->info->flags&FLAG_INTERFACE)) {
+ code_t*c = 0;
+ c = abc_getlocal_0(c);
+ c = abc_constructsuper(c, 0);
+ state->cls->init->header = code_append(state->cls->init->header, c);
+ state->cls->has_constructor=1;
+ }
+ if(state->cls->init) {
+ if(state->cls->info->flags&FLAG_INTERFACE) {
+ if(state->cls->init->header)
+ syntaxerror("interface can not have class-level code");
+ } else {
+ abc_method_t*m = abc_class_getconstructor(state->cls->abc, 0);
+ code_t*c = method_header(state->cls->init);
+ m->body->code = wrap_function(c, 0, m->body->code);
+ }
+ }
+ if(state->cls->static_init) {
+ abc_method_t*m = abc_class_getstaticconstructor(state->cls->abc, 0);
+ code_t*c = method_header(state->cls->static_init);
+ m->body->code = wrap_function(c, 0, m->body->code);
+ }
+
+ trait_list_t*trait = state->cls->abc->traits;
+ /* switch all protected members to the protected ns of this class */
+ while(trait) {
+ trait_t*t = trait->trait;
+ if(t->name->ns->access == ACCESS_PROTECTED) {
+ if(!state->cls->abc->protectedNS) {
+ char*n = concat3(state->cls->info->package, ":", state->cls->info->name);
+ state->cls->abc->protectedNS = namespace_new_protected(n);
+ state->cls->abc->flags |= CLASS_PROTECTED_NS;
+ }
+ t->name->ns->name = strdup(state->cls->abc->protectedNS->name);
+ }
+ trait = trait->next;
+ }
+ }
+
+ old_state();
+}
+
+void check_code_for_break(code_t*c)
+{
+ while(c) {
+ if(c->opcode == OPCODE___BREAK__) {
+ char*name = string_cstr(c->data[0]);
+ syntaxerror("Unresolved \"break %s\"", name);
+ }
+ if(c->opcode == OPCODE___CONTINUE__) {
+ char*name = string_cstr(c->data[0]);
+ syntaxerror("Unresolved \"continue %s\"", name);
+ }
+ if(c->opcode == OPCODE___RETHROW__) {
+ syntaxerror("Unresolved \"rethrow\"");
+ }
+ if(c->opcode == OPCODE___FALLTHROUGH__) {
+ syntaxerror("Unresolved \"fallthrough\"");
+ }
+ if(c->opcode == OPCODE___PUSHPACKAGE__) {
+ char*name = string_cstr(c->data[0]);
+ syntaxerror("Can't reference a package (%s) as such", name);
+ }
+ c=c->prev;
+ }
+}
+
+static void check_constant_against_type(classinfo_t*t, constant_t*c)
+{
+#define xassert(b) if(!(b)) syntaxerror("Invalid default value %s for type '%s'", constant_tostring(c), t->name)
+ if(TYPE_IS_NUMBER(t)) {
+ xassert(c->type == CONSTANT_FLOAT
+ || c->type == CONSTANT_INT
+ || c->type == CONSTANT_UINT);
+ } else if(TYPE_IS_UINT(t)) {
+ xassert(c->type == CONSTANT_UINT ||
+ (c->type == CONSTANT_INT && c->i>=0));
+ } else if(TYPE_IS_INT(t)) {
+ xassert(c->type == CONSTANT_INT);
+ } else if(TYPE_IS_BOOLEAN(t)) {
+ xassert(c->type == CONSTANT_TRUE
+ || c->type == CONSTANT_FALSE);
+ }
+}
+
+static void check_override(memberinfo_t*m, int flags)
+{
+ if(!m)
+ return;
+ if(m->parent == state->cls->info)
+ syntaxerror("class '%s' already contains a method/slot '%s'", m->parent->name, m->name);
+ if(!m->parent)
+ syntaxerror("internal error: overriding method %s, which doesn't have parent", m->name);
+ if(m->access==ACCESS_PRIVATE)
+ return;
+ if(m->flags & FLAG_FINAL)
+ syntaxerror("can't override final member %s", m->name);
+
+ /* allow this. it's no issue.
+ if((m->flags & FLAG_STATIC) && !(flags&FLAG_STATIC))
+ syntaxerror("can't override static member %s", m->name);*/
+
+ if(!(m->flags & FLAG_STATIC) && (flags&FLAG_STATIC))
+ syntaxerror("can't override non-static member %s with static declaration", m->name);
+
+ if(!(flags&FLAG_OVERRIDE) && !(flags&FLAG_STATIC) && !(m->flags&FLAG_STATIC)) {
+ if(m->parent && !(m->parent->flags&FLAG_INTERFACE)) {
+ if(m->kind == INFOTYPE_METHOD)
+ syntaxerror("can't override without explicit 'override' declaration");
+ else
+ syntaxerror("can't override '%s'", m->name);
+ }
+ }
+}
+
+static methodinfo_t*registerfunction(enum yytokentype getset, modifiers_t*mod, char*name, params_t*params, classinfo_t*return_type, int slot)
+{
+ methodinfo_t*minfo = 0;
+ namespace_t ns = modifiers2access(mod);
+ if(!state->cls) {
+ //package method
+ minfo = methodinfo_register_global(ns.access, state->package, name);
+ minfo->return_type = return_type;
+ } else if(getset != KW_GET && getset != KW_SET) {
+ //class method
+ memberinfo_t* m = registry_findmember(state->cls->info, ns.name, name, 0);
+ if(m) {
+ syntaxerror("class already contains a %s '%s'", infotypename((slotinfo_t*)m), m->name);
+ }
+ minfo = methodinfo_register_onclass(state->cls->info, ns.access, ns.name, name);
+ minfo->return_type = return_type;
+ // getslot on a member slot only returns "undefined", so no need
+ // to actually store these