/*************************************************************************** CClass.c The native class Class needed for introspection (c) 2000-2007 Benoit Minisini 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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA. ***************************************************************************/ #define __GBX_C_CLASS_C #include "gbx_info.h" #ifndef GBX_INFO #include #include "gb_common.h" #include "gbx_api.h" #include "gbx_component.h" #include "gbx_project.h" #include "gbx_class.h" #include "gbx_class_desc.h" #include "gbx_exec.h" #include "gbx_event.h" #include "gbx_object.h" #include "gbx_c_array.h" #include "gbx_c_gambas.h" #include "gbx_c_class.h" static CLASS_DESC_SYMBOL *_current_symbol = NULL; static CLASS_DESC *get_desc(CLASS *class, const char *name) { int index; index = CLASS_find_symbol(class, name); //fprintf(stderr, "CLASS_find_symbol('%s', '%s') = %ld\n", class->name, name, index); if (index == NO_SYMBOL) { GB_Error((char *)E_NSYMBOL, name, class->name); return NULL; } else return class->table[index].desc; } /**************************************************************************************************/ BEGIN_METHOD(component_get, GB_STRING name) const char *name = GB_ToZeroString(ARG(name)); COMPONENT *comp; comp = COMPONENT_find(name); GB_ReturnObject(comp); END_METHOD BEGIN_PROPERTY(component_count) GB_ReturnInt(COMPONENT_count); END_PROPERTY BEGIN_METHOD_VOID(component_next) COMPONENT **plib = (COMPONENT **)GB_GetEnum(); *plib = COMPONENT_next(*plib); if (*plib == NULL) GB_StopEnum(); else GB_ReturnObject(*plib); END_METHOD BEGIN_PROPERTY(component_name) GB_ReturnConstZeroString(OBJECT(COMPONENT)->name); END_PROPERTY BEGIN_PROPERTY(component_path) GB_ReturnString(COMPONENT_path); END_PROPERTY BEGIN_PROPERTY(component_user_path) GB_ReturnString(COMPONENT_user_path); END_PROPERTY BEGIN_METHOD(component_load, GB_STRING name) const char *name = GB_ToZeroString(ARG(name)); COMPONENT *comp; comp = COMPONENT_find(name); if (!comp) comp = COMPONENT_create(name); COMPONENT_load(comp); GB_ReturnObject(comp); END_METHOD BEGIN_METHOD_VOID(component_unload) COMPONENT_unload(OBJECT(COMPONENT)); END_METHOD /**************************************************************************************************/ BEGIN_METHOD(class_get, GB_STRING name) const char *name = GB_ToZeroString(ARG(name)); CLASS *class = NULL; if (name != NULL) class = CLASS_look(name, LENGTH(name)); if (class == NULL) { GB_Error("Unknown class '&1'", name); return; } if (!class->state) { GB_Error("Class is not loaded"); return; } GB_ReturnObject(class); END_METHOD BEGIN_METHOD(class_load, GB_STRING name) CLASS *class; class = CLASS_get(GB_ToZeroString(ARG(name))); GB_ReturnObject(class); END_METHOD BEGIN_PROPERTY(class_name) GB_ReturnConstZeroString(OBJECT(CLASS)->name); END_PROPERTY BEGIN_METHOD_VOID(class_next) TABLE *table = CLASS_get_table(); int *index = (int *)GB_GetEnum(); CLASS *class; for(;;) { if (*index >= TABLE_count(table)) { GB_StopEnum(); break; } class = ((CLASS_SYMBOL *)TABLE_get_symbol(table, *index))->class; (*index)++; if (class->state) { GB_ReturnObject(class); break; } } END_METHOD BEGIN_PROPERTY(class_count) GB_ReturnInt(CLASS_count()); END_PROPERTY BEGIN_PROPERTY(class_object_count) GB_ReturnInt(OBJECT(CLASS)->count); END_PROPERTY BEGIN_PROPERTY(class_hidden) GB_ReturnBoolean(*(OBJECT(CLASS)->name) == '.'); END_PROPERTY BEGIN_PROPERTY(class_native) GB_ReturnBoolean(CLASS_is_native(OBJECT(CLASS))); END_PROPERTY BEGIN_PROPERTY(class_component) GB_ReturnObject(OBJECT(CLASS)->component); END_PROPERTY BEGIN_PROPERTY(class_parent) GB_ReturnObject(OBJECT(CLASS)->parent); END_PROPERTY /**************************************************************************************************/ BEGIN_PROPERTY(class_symbols_count) CLASS *class = OBJECT(CLASS); int i, ndesc; CLASS_DESC *old = NULL; CLASS_DESC *desc; ndesc = class->n_desc; for (i = 0; i < class->n_desc; i++) { desc = class->table[class->table[i].sort].desc; if (!desc || desc == old) ndesc--; old = desc; } GB_ReturnInt(ndesc); END_PROPERTY BEGIN_METHOD_VOID(class_symbols_next) CLASS *class = OBJECT(CLASS); int *index = (int *)GB_GetEnum(); CLASS_DESC_SYMBOL *cds; cds = CLASS_get_next_sorted_symbol(class, index); if (!cds) GB_StopEnum(); else GB_ReturnConstString(cds->name, cds->len); /* for(;;) { if (*index >= class->n_desc) { GB_StopEnum(); return; } sort = class->table[*index].sort; if (*index > 0) old = class->table[class->table[*index - 1].sort].desc; (*index)++; if (class->table[sort].desc && class->table[sort].desc != old) { fprintf(stderr, "%.*s: %p\n", class->table[sort].len, class->table[sort].name, class->table[sort].desc); break; } } GB_ReturnConstString(class->table[sort].name, class->table[sort].len);*/ END_METHOD BEGIN_METHOD(class_symbol_get, GB_STRING name) CLASS *class = OBJECT(CLASS); CLASS_DESC_SYMBOL *cd = NULL; const char *name = GB_ToZeroString(ARG(name)); if (name != NULL) cd = CLASS_get_symbol(class, name); if (cd == NULL) { GB_Error("Unknown symbol '&1'", name); return; } _current_symbol = cd; GB_ReturnObject(class); END_METHOD BEGIN_PROPERTY(class_instance) GB_ReturnObject(OBJECT(CLASS)->instance); END_PROPERTY /**************************************************************************************************/ BEGIN_PROPERTY(symbol_name) GB_ReturnConstString(_current_symbol->name, _current_symbol->len); END_PROPERTY BEGIN_PROPERTY(symbol_kind) CLASS_DESC_SYMBOL *cds = _current_symbol; switch(CLASS_DESC_get_type(cds->desc)) { case CD_VARIABLE: case CD_STATIC_VARIABLE: GB_ReturnInt(1); return; case CD_PROPERTY: case CD_PROPERTY_READ: case CD_STATIC_PROPERTY: case CD_STATIC_PROPERTY_READ: GB_ReturnInt(2); return; case CD_METHOD: case CD_STATIC_METHOD: GB_ReturnInt(3); return; case CD_EVENT: GB_ReturnInt(4); return; case CD_CONSTANT: GB_ReturnInt(5); return; default: GB_ReturnInt(0); return; } END_PROPERTY BEGIN_PROPERTY(symbol_static) CLASS_DESC_SYMBOL *cds = _current_symbol; GB_ReturnBoolean(index(CD_STATIC_LIST, CLASS_DESC_get_type(cds->desc)) != NULL); END_PROPERTY BEGIN_PROPERTY(symbol_hidden) CLASS_DESC_SYMBOL *cds = _current_symbol; GB_ReturnBoolean(*cds->name == '_'); END_PROPERTY BEGIN_PROPERTY(symbol_read_only) CLASS_DESC_SYMBOL *cds = _current_symbol; switch (CLASS_DESC_get_type(cds->desc)) { case CD_PROPERTY: case CD_STATIC_PROPERTY: GB_ReturnBoolean(FALSE); break; default: GB_ReturnBoolean(TRUE); break; } END_PROPERTY BEGIN_PROPERTY(symbol_type) CLASS_DESC_SYMBOL *cds = _current_symbol; GB_ReturnConstZeroString(TYPE_to_string(cds->desc->property.type)); /* Valable pour tout symbole */ END_PROPERTY BEGIN_PROPERTY(symbol_signature) CLASS_DESC_SYMBOL *cds = _current_symbol; GB_ReturnConstZeroString(CLASS_DESC_get_signature(cds->desc)); END_METHOD BEGIN_PROPERTY(symbol_value) CLASS_DESC *desc = _current_symbol->desc; if (CLASS_DESC_get_type(desc) != CD_CONSTANT) { GB_ReturnNull(); return; } if (desc->constant.type == T_STRING) GB_ReturnConstZeroString(desc->constant.value._string); else GB_ReturnPtr(desc->constant.type, (void *)&desc->constant.value); END_PROPERTY /**************************************************************************************************/ BEGIN_METHOD(object_get_property, GB_OBJECT object; GB_STRING property) const char *name; CLASS_DESC *desc; CLASS *class; char type; void *object = VARG(object); if (GB_CheckObject(object)) return; if (OBJECT_is_class(object)) { class = (CLASS *)object; object = NULL; } else { class = OBJECT_class(object); } name = GB_ToZeroString(ARG(property)); desc = get_desc(class, name); if (!desc) return; type = CLASS_DESC_get_type(desc); if (type == CD_PROPERTY || type == CD_PROPERTY_READ || type == CD_VARIABLE) { if (!object) { GB_Error((char *)E_DYNAMIC, class->name, name); return; } } else if (type == CD_STATIC_PROPERTY || type == CD_STATIC_PROPERTY_READ || type == CD_STATIC_VARIABLE || type == CD_CONSTANT) { if (object) { GB_Error((char *)E_STATIC, class->name, name); return; } } else { GB_Error((char *)E_NPROPERTY, class->name, name); return; } if (type == CD_VARIABLE) VALUE_read(&TEMP, (char *)object + desc->variable.offset, desc->property.type); else if (type == CD_STATIC_VARIABLE) VALUE_read(&TEMP, (char *)class->stat + desc->variable.offset, desc->property.type); else if (type == CD_CONSTANT) VALUE_read(&TEMP, (void *)&desc->constant.value, desc->constant.type); else { if (desc->property.native) { if (EXEC_call_native(desc->property.read, object, desc->property.type, 0)) { GAMBAS_Error = TRUE; return; } } else { EXEC.class = desc->property.class; EXEC.object = object; EXEC.drop = FALSE; EXEC.nparam = 0; EXEC.native = FALSE; EXEC.index = (int)(intptr_t)desc->property.read; //EXEC.func = &class->load->func[(long)desc->property.read]; EXEC_function_keep(); TEMP = *RP; UNBORROW(RP); RP->type = T_VOID; } } END_METHOD BEGIN_METHOD(object_set_property, GB_OBJECT object; GB_STRING property; GB_VARIANT value) const char *name; CLASS_DESC *desc; CLASS *class; char type; void *object = VARG(object); VALUE *value = (VALUE *)ARG(value); if (GB_CheckObject(object)) return; if (OBJECT_is_class(object)) { class = (CLASS *)object; object = NULL; } else { class = OBJECT_class(object); } name = GB_ToZeroString(ARG(property)); desc = get_desc(class, name); if (!desc) return; type = CLASS_DESC_get_type(desc); if (type == CD_PROPERTY || type == CD_VARIABLE) { if (!object) { if (!class->auto_create) { GB_Error((char *)E_DYNAMIC, class->name, name); return; } object = EXEC_auto_create(class, TRUE); } } else if (type == CD_STATIC_PROPERTY || type == CD_STATIC_VARIABLE) { if (object) { GB_Error((char *)E_STATIC, class->name, name); return; } } else if (type == CD_PROPERTY_READ || type == CD_STATIC_PROPERTY_READ) { GB_Error((char *)E_NWRITE, class->name, name); return; } else { GB_Error((char *)E_NPROPERTY, class->name, name); return; } if (type == CD_VARIABLE) VALUE_write(value, (char *)object + desc->variable.offset, desc->variable.type); else if (type == CD_STATIC_VARIABLE) VALUE_write(value, (char *)class->stat + desc->variable.offset, desc->variable.type); else { if (desc->property.native) { VALUE_conv(value, desc->property.type); if (EXEC_call_native(desc->property.write, object, 0, value)) { GAMBAS_Error = TRUE; return; } } else { *SP = *value; BORROW(SP); SP++; EXEC.class = desc->property.class; EXEC.object = object; EXEC.drop = FALSE; EXEC.nparam = 1; EXEC.native = FALSE; EXEC.index = (int)(intptr_t)desc->property.write; //EXEC.func = &class->load->func[(long)desc->property.write]; EXEC_function(); /*VALUE_write(value, OBJECT_get_prop_addr(object, desc), desc->property.type);*/ } } END_METHOD BEGIN_METHOD(object_attach, GB_OBJECT object; GB_OBJECT parent; GB_STRING name) void *object = VARG(object); void *parent = VARG(parent); if (GB_CheckObject(object)) return; if (!parent) { OBJECT_detach(object); return; } if (GB_CheckObject(parent)) return; OBJECT_attach(object, parent, GB_ToZeroString(ARG(name))); if (OBJECT_is(object, CLASS_Observer)) COBSERVER_attach((COBSERVER *)object, parent, GB_ToZeroString(ARG(name))); END_METHOD BEGIN_METHOD(object_detach, GB_OBJECT object) void *object = VARG(object); if (GB_CheckObject(object)) return; if (OBJECT_is(object, CLASS_Observer)) COBSERVER_detach((COBSERVER *)object); OBJECT_detach(object); END_METHOD BEGIN_METHOD(object_get_parent, GB_OBJECT object) void *object = VARG(object); if (GB_CheckObject(object)) return; GB_ReturnObject(OBJECT_parent(object)); END_METHOD BEGIN_METHOD(object_class, GB_OBJECT object) void *object = VARG(object); if (GB_CheckObject(object)) return; GB_ReturnObject(OBJECT_class(object)); END_METHOD BEGIN_METHOD(object_type, GB_OBJECT object) void *object = VARG(object); if (GB_CheckObject(object)) return; GB_ReturnConstZeroString(OBJECT_class(object)->name); END_METHOD BEGIN_METHOD(object_is, GB_OBJECT object; GB_STRING class) void *object = VARG(object); CLASS *class = CLASS_look(STRING(class), LENGTH(class)); if (GB_CheckObject(object)) return; if (!class) { GB_ReturnBoolean(FALSE); return; } GB_ReturnBoolean(OBJECT_class(object) == class || CLASS_inherits(OBJECT_class(object), class)); END_METHOD BEGIN_METHOD(object_call, GB_OBJECT object; GB_STRING method; GB_OBJECT params) int i; int np = 0; char *name = GB_ToZeroString(ARG(method)); void *object = VARG(object); GB_FUNCTION func; GB_ARRAY params = VARGOPT(params, NULL); CLASS *class; if (GB_CheckObject(object)) return; class = OBJECT_class(object); if (GB_GetFunction(&func, object, name, NULL, NULL)) { GB_Error((char *)E_NSYMBOL, name, class->name); return; } if (params) np = GB_ArrayCount(params); if (np) { STACK_check(np); for (i = 0; i < np; i++) { CARRAY_get_value(params, i, SP); PUSH(); } } GB_Call(&func, np, FALSE); END_METHOD BEGIN_METHOD(object_is_valid, GB_OBJECT object) GB_ReturnBoolean(OBJECT_is_valid(VARG(object))); END_METHOD BEGIN_METHOD(object_lock, GB_OBJECT object) void *object = VARG(object); if (GB_CheckObject(object)) return; OBJECT_lock(object, TRUE); END_METHOD BEGIN_METHOD(object_unlock, GB_OBJECT object) void *object = VARG(object); if (GB_CheckObject(object)) return; OBJECT_lock(object, FALSE); END_METHOD BEGIN_METHOD(object_is_locked, GB_OBJECT object) void *object = VARG(object); if (GB_CheckObject(object)) return; GB_ReturnBoolean(OBJECT_is_locked(object)); END_METHOD BEGIN_METHOD(object_count, GB_OBJECT object) void *object = VARG(object); if (GB_CheckObject(object)) return; // We substract one because the object is referenced on the stack GB_ReturnInteger(OBJECT_count(object) - 1); END_METHOD BEGIN_METHOD(object_new, GB_STRING class; GB_OBJECT params) CLASS *class = CLASS_find(GB_ToZeroString(ARG(class))); GB_ARRAY params = VARGOPT(params, NULL); int i, np = 0; void *object; if (!class) { GB_Error("Unknown class"); return; } if (params) np = GB_ArrayCount(params); if (np) { STACK_check(np); for (i = 0; i < np; i++) { CARRAY_get_value(params, i, SP); PUSH(); } } object = EXEC_create_object(class, np, NULL); OBJECT_UNREF_KEEP(object, "object_new"); GB_ReturnObject(object); END_METHOD BEGIN_PROPERTY(object_event_name) GB_ReturnString(EVENT_Name); END_PROPERTY #endif GB_DESC NATIVE_Symbol[] = { GB_DECLARE(".Symbol", 0), GB_VIRTUAL_CLASS(), GB_PROPERTY_READ("Name", "s", symbol_name), GB_PROPERTY_READ("Kind", "i", symbol_kind), GB_PROPERTY_READ("Type", "s", symbol_type), GB_PROPERTY_READ("ReadOnly", "b", symbol_read_only), GB_PROPERTY_READ("Hidden", "b", symbol_hidden), GB_PROPERTY_READ("Signature", "s", symbol_signature), GB_PROPERTY_READ("Static", "b", symbol_static), GB_PROPERTY_READ("Value", "v", symbol_value), GB_END_DECLARE }; GB_DESC NATIVE_ClassSymbols[] = { GB_DECLARE(".ClassSymbols", 0), GB_VIRTUAL_CLASS(), GB_METHOD("_next", "s", class_symbols_next, NULL), GB_PROPERTY_READ("Count", "i", class_symbols_count), GB_END_DECLARE }; GB_DESC NATIVE_Components[] = { GB_DECLARE("Components", 0), GB_VIRTUAL_CLASS(), GB_STATIC_METHOD("Load", "Component", component_load, "(Name)s"), GB_STATIC_METHOD("_next", "Component", component_next, NULL), GB_STATIC_METHOD("_get", "Component", component_get, "(Name)s"), GB_STATIC_PROPERTY_READ("Count", "i", component_count), GB_END_DECLARE }; GB_DESC NATIVE_Component[] = { GB_DECLARE("Component", 0), GB_VIRTUAL_CLASS(), //GB_STATIC_METHOD("_get", "Component", library_get, "(Name)s"), GB_STATIC_METHOD("Load", "Component", component_load, "(Name)s"), GB_STATIC_PROPERTY_READ("Path", "s", component_path), GB_STATIC_PROPERTY_READ("UserPath", "s", component_user_path), GB_PROPERTY_READ("Name", "s", component_name), GB_END_DECLARE }; GB_DESC NATIVE_Classes[] = { GB_DECLARE("Classes", 0), GB_VIRTUAL_CLASS(), GB_STATIC_METHOD("_next", "Class", class_next, NULL), GB_STATIC_METHOD("_get", "Class", class_get, "(Name)s"), GB_STATIC_PROPERTY_READ("Count", "i", class_count), GB_END_DECLARE }; GB_DESC NATIVE_Class[] = { GB_DECLARE("Class", 0), GB_VIRTUAL_CLASS(), GB_STATIC_METHOD("Load", "Class", class_load, "(Name)s"), GB_METHOD("_get", ".Symbol", class_symbol_get, "(Name)s"), GB_PROPERTY_SELF("Symbols", ".ClassSymbols"), GB_PROPERTY_READ("Name", "s", class_name), GB_PROPERTY_READ("Hidden", "b", class_hidden), GB_PROPERTY_READ("Native", "b", class_native), GB_PROPERTY_READ("Parent", "Class", class_parent), GB_PROPERTY_READ("Component", "Component", class_component), GB_PROPERTY_READ("Count", "i", class_object_count), GB_PROPERTY_READ("Instance", "o", class_instance), /*GB_METHOD("New", "Object", class_new, "."),*/ GB_CONSTANT("Variable", "i", 1), GB_CONSTANT("Property", "i", 2), GB_CONSTANT("Method", "i", 3), GB_CONSTANT("Event", "i", 4), GB_CONSTANT("Constant", "i", 5), GB_END_DECLARE }; GB_DESC NATIVE_Object[] = { GB_DECLARE("Object", 0), GB_VIRTUAL_CLASS(), GB_STATIC_METHOD("GetProperty", "v", object_get_property, "(Object)o(Property)s"), GB_STATIC_METHOD("SetProperty", NULL, object_set_property, "(Object)o(Property)s(Value)v"), GB_STATIC_METHOD("Attach", NULL, object_attach, "(Object)o(Parent)o(Name)s"), GB_STATIC_METHOD("Detach", NULL, object_detach, "(Object)o"), GB_STATIC_METHOD("Class", "Class", object_class, "(Object)o"), GB_STATIC_METHOD("Type", "s", object_type, "(Object)o"), GB_STATIC_METHOD("Is", "b", object_is, "(Object)o(Class)s"), GB_STATIC_METHOD("Parent", "o", object_get_parent, "(Object)o"), GB_STATIC_METHOD("Call", "v", object_call, "(Object)o(Method)s[(Arguments)Array;]"), GB_STATIC_METHOD("New", "o", object_new, "(Class)s[(Arguments)Array;]"), GB_STATIC_METHOD("IsValid", "b", object_is_valid, "(Object)o"), GB_STATIC_METHOD("Lock", NULL, object_lock, "(Object)o"), GB_STATIC_METHOD("Unlock", NULL, object_unlock, "(Object)o"), GB_STATIC_METHOD("IsLocked", "b", object_is_locked, "(Object)o"), GB_STATIC_METHOD("Count", "i", object_count, "(Object)o"), GB_STATIC_PROPERTY_READ("LastEventName", "s", object_event_name), GB_END_DECLARE };