public override CCodeFragment get_type_interface_init_declaration()
{
var frag = new CCodeFragment();
foreach (DataType base_type in class_reference.get_base_types())
{
if (!(base_type.data_type is Interface))
{
continue;
}
var iface = (Interface)base_type.data_type;
var iface_info_name = "%s_info".printf(CCodeBaseModule.get_ccode_lower_case_name(iface, null));
var ctypedecl = new CCodeDeclaration("const GInterfaceInfo");
ctypedecl.modifiers = CCodeModifiers.STATIC;
ctypedecl.add_declarator(new CCodeVariableDeclarator(iface_info_name, new CCodeConstant("{ (GInterfaceInitFunc) %s_%s_interface_init, (GInterfaceFinalizeFunc) NULL, NULL}".printf(CCodeBaseModule.get_ccode_lower_case_name(class_reference), CCodeBaseModule.get_ccode_lower_case_name(iface)))));
frag.append(ctypedecl);
}
return(frag);
}
/// <summary>
/// Constructs the C function from the specified type.
/// </summary>
public void init_from_type(bool plugin, bool declaration_only)
{
bool use_thread_safe = !plugin;
bool fundamental = false;
Class cl = get_type_declaration() as Class;
if (cl != null && !cl.is_compact && cl.base_class == null)
{
fundamental = true;
}
string type_id_name = "%s_type_id".printf(CCodeBaseModule.get_ccode_lower_case_name(get_type_declaration()));
var type_block = new CCodeBlock();
CCodeDeclaration cdecl;
if (use_thread_safe)
{
cdecl = new CCodeDeclaration("gsize");
cdecl.add_declarator(new CCodeVariableDeclarator(type_id_name + "__volatile", new CCodeConstant("0")));
}
else
{
cdecl = new CCodeDeclaration("GType");
cdecl.add_declarator(new CCodeVariableDeclarator(type_id_name, new CCodeConstant("0")));
}
cdecl.modifiers = CCodeModifiers.STATIC;
if (use_thread_safe)
{
cdecl.modifiers |= CCodeModifiers.VOLATILE;
}
if (!plugin)
{
type_block.add_statement(cdecl);
}
else
{
source_declaration_fragment.append(cdecl);
}
CCodeFunction fun;
if (!plugin)
{
fun = new CCodeFunction("%s_get_type".printf(CCodeBaseModule.get_ccode_lower_case_name(get_type_declaration())), "GType");
fun.modifiers = CCodeModifiers.CONST;
/* Function will not be prototyped anyway */
if (get_accessibility() == SymbolAccessibility.PRIVATE)
{
// avoid C warning as this function is not always used
fun.modifiers |= CCodeModifiers.STATIC | CCodeModifiers.UNUSED;
}
else if (context.hide_internal && get_accessibility() == SymbolAccessibility.INTERNAL)
{
// avoid C warning as this function is not always used
fun.modifiers |= CCodeModifiers.INTERNAL | CCodeModifiers.UNUSED;
}
fun.is_declaration = true;
declaration_fragment.append(fun.copy());
fun.is_declaration = false;
}
else
{
fun = new CCodeFunction("%s_register_type".printf(CCodeBaseModule.get_ccode_lower_case_name(get_type_declaration())), "GType");
fun.add_parameter(new CCodeParameter("module", "GTypeModule *"));
var get_fun = new CCodeFunction("%s_get_type".printf(CCodeBaseModule.get_ccode_lower_case_name(get_type_declaration())), "GType");
get_fun.modifiers = CCodeModifiers.CONST;
get_fun.is_declaration = true;
declaration_fragment.append(get_fun.copy());
get_fun.is_declaration = false;
get_fun.block = new CCodeBlock();
get_fun.block.add_statement(new CCodeReturnStatement(new CCodeIdentifier(type_id_name)));
definition_fragment.append(get_fun);
}
string type_value_table_decl_name = null;
var type_init = new CCodeBlock();
if (fundamental)
{
var cgtypetabledecl = new CCodeDeclaration("const GTypeValueTable");
cgtypetabledecl.modifiers = CCodeModifiers.STATIC;
cgtypetabledecl.add_declarator(new CCodeVariableDeclarator("g_define_type_value_table", new CCodeConstant("{ %s, %s, %s, %s, \"p\", %s, \"p\", %s }".printf(get_gtype_value_table_init_function_name(), get_gtype_value_table_free_function_name(), get_gtype_value_table_copy_function_name(), get_gtype_value_table_peek_pointer_function_name(), get_gtype_value_table_collect_value_function_name(), get_gtype_value_table_lcopy_value_function_name()))));
type_value_table_decl_name = "&g_define_type_value_table";
type_init.add_statement(cgtypetabledecl);
}
else
{
type_value_table_decl_name = "NULL";
}
if (get_type_declaration() is ObjectTypeSymbol)
{
var ctypedecl = new CCodeDeclaration("const GTypeInfo");
ctypedecl.modifiers = CCodeModifiers.STATIC;
ctypedecl.add_declarator(new CCodeVariableDeclarator("g_define_type_info", new CCodeConstant("{ sizeof (%s), (GBaseInitFunc) %s, (GBaseFinalizeFunc) %s, (GClassInitFunc) %s, (GClassFinalizeFunc) %s, NULL, %s, 0, (GInstanceInitFunc) %s, %s }".printf(get_type_struct_name(), get_base_init_func_name(), (plugin) ? get_base_finalize_func_name() : "NULL", get_class_init_func_name(), get_class_finalize_func_name(), get_instance_struct_size(), get_instance_init_func_name(), type_value_table_decl_name))));
type_init.add_statement(ctypedecl);
if (fundamental)
{
var ctypefundamentaldecl = new CCodeDeclaration("const GTypeFundamentalInfo");
ctypefundamentaldecl.modifiers = CCodeModifiers.STATIC;
ctypefundamentaldecl.add_declarator(new CCodeVariableDeclarator("g_define_type_fundamental_info", new CCodeConstant("{ (G_TYPE_FLAG_CLASSED | G_TYPE_FLAG_INSTANTIATABLE | G_TYPE_FLAG_DERIVABLE | G_TYPE_FLAG_DEEP_DERIVABLE) }")));
type_init.add_statement(ctypefundamentaldecl);
}
}
type_init.add_statement(get_type_interface_init_declaration());
CCodeFunctionCall reg_call;
if (get_type_declaration() is Struct)
{
reg_call = new CCodeFunctionCall(new CCodeIdentifier("g_boxed_type_register_static"));
}
else if (get_type_declaration() is ValaEnum)
{
var en = get_type_declaration() as ValaEnum;
if (en.is_flags)
{
reg_call = new CCodeFunctionCall(new CCodeIdentifier("g_flags_register_static"));
}
else
{
reg_call = new CCodeFunctionCall(new CCodeIdentifier("g_enum_register_static"));
}
}
else if (fundamental)
{
reg_call = new CCodeFunctionCall(new CCodeIdentifier("g_type_register_fundamental"));
reg_call.add_argument(new CCodeFunctionCall(new CCodeIdentifier("g_type_fundamental_next")));
}
else if (!plugin)
{
reg_call = new CCodeFunctionCall(new CCodeIdentifier("g_type_register_static"));
reg_call.add_argument(new CCodeIdentifier(get_parent_type_name()));
}
else
{
reg_call = new CCodeFunctionCall(new CCodeIdentifier("g_type_module_register_type"));
reg_call.add_argument(new CCodeIdentifier("module"));
reg_call.add_argument(new CCodeIdentifier(get_parent_type_name()));
}
reg_call.add_argument(new CCodeConstant("\"%s\"".printf(CCodeBaseModule.get_ccode_name(get_type_declaration()))));
if (get_type_declaration() is Struct)
{
var st = (Struct)get_type_declaration();
reg_call.add_argument(new CCodeCastExpression(new CCodeIdentifier(CCodeBaseModule.get_ccode_dup_function(st)), "GBoxedCopyFunc"));
reg_call.add_argument(new CCodeCastExpression(new CCodeIdentifier(CCodeBaseModule.get_ccode_free_function(st)), "GBoxedFreeFunc"));
}
else if (get_type_declaration() is ValaEnum)
{
var en = get_type_declaration() as ValaEnum;
var clist = new CCodeInitializerList(); /* or during visit time? */
CCodeInitializerList clist_ev = null;
foreach (EnumValue ev in en.get_values())
{
clist_ev = new CCodeInitializerList();
clist_ev.append(new CCodeConstant(CCodeBaseModule.get_ccode_name(ev)));
clist_ev.append(new CCodeIdentifier("\"%s\"".printf(CCodeBaseModule.get_ccode_name(ev))));
clist_ev.append(CCodeBaseModule.get_enum_value_canonical_cconstant(ev));
clist.append(clist_ev);
}
clist_ev = new CCodeInitializerList();
clist_ev.append(new CCodeConstant("0"));
clist_ev.append(new CCodeConstant("NULL"));
clist_ev.append(new CCodeConstant("NULL"));
clist.append(clist_ev);
var enum_decl = new CCodeVariableDeclarator("values[]", clist);
if (en.is_flags)
{
cdecl = new CCodeDeclaration("const GFlagsValue");
}
else
{
cdecl = new CCodeDeclaration("const GEnumValue");
}
cdecl.add_declarator(enum_decl);
cdecl.modifiers = CCodeModifiers.STATIC;
type_init.add_statement(cdecl);
reg_call.add_argument(new CCodeIdentifier("values"));
}
else
{
reg_call.add_argument(new CCodeIdentifier("&g_define_type_info"));
if (fundamental)
{
reg_call.add_argument(new CCodeIdentifier("&g_define_type_fundamental_info"));
}
reg_call.add_argument(new CCodeConstant(get_type_flags()));
}
if (use_thread_safe && !plugin)
{
var temp_decl = new CCodeDeclaration("GType");
temp_decl.add_declarator(new CCodeVariableDeclarator(type_id_name, reg_call));
type_init.add_statement(temp_decl);
}
else
{
type_init.add_statement(new CCodeExpressionStatement(new CCodeAssignment(new CCodeIdentifier(type_id_name), reg_call)));
}
if (cl != null && cl.has_class_private_fields)
{
CCodeFunctionCall add_class_private_call;
add_class_private_call = new CCodeFunctionCall(new CCodeIdentifier("g_type_add_class_private"));
add_class_private_call.add_argument(new CCodeIdentifier(type_id_name));
add_class_private_call.add_argument(new CCodeIdentifier("sizeof (%sClassPrivate)".printf(CCodeBaseModule.get_ccode_name(get_type_declaration()))));
type_init.add_statement(new CCodeExpressionStatement(add_class_private_call));
}
if (!declaration_only)
{
get_type_interface_init_statements(type_init, plugin);
}
if (!plugin)
{
CCodeExpression condition; // the condition that guards the type initialisation
if (use_thread_safe)
{
var enter = new CCodeFunctionCall(new CCodeIdentifier("g_once_init_enter"));
enter.add_argument(new CCodeUnaryExpression(CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier(type_id_name + "__volatile")));
condition = enter;
var leave = new CCodeFunctionCall(new CCodeIdentifier("g_once_init_leave"));
leave.add_argument(new CCodeUnaryExpression(CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier(type_id_name + "__volatile")));
leave.add_argument(new CCodeIdentifier(type_id_name));
type_init.add_statement(new CCodeExpressionStatement(leave));
}
else
{
var id = new CCodeIdentifier(type_id_name);
var zero = new CCodeConstant("0");
condition = new CCodeBinaryExpression(CCodeBinaryOperator.EQUALITY, id, zero);
}
CCodeExpression cond;
if (use_thread_safe)
{
cond = condition;
}
else
{
cond = new CCodeFunctionCall(new CCodeIdentifier("G_UNLIKELY"));
(cond as CCodeFunctionCall).add_argument(condition);
}
var cif = new CCodeIfStatement(cond, type_init);
type_block.add_statement(cif);
}
else
{
type_block = type_init;
}
if (use_thread_safe)
{
type_block.add_statement(new CCodeReturnStatement(new CCodeIdentifier(type_id_name + "__volatile")));
}
else
{
type_block.add_statement(new CCodeReturnStatement(new CCodeIdentifier(type_id_name)));
}
fun.block = type_block;
definition_fragment.append(fun);
}