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/* valaccodegeneratorinterface.vala
*
* Copyright (C) 2006-2007 Jürg Billeter, Raffaele Sandrini
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Jürg Billeter <j@bitron.ch>
* Raffaele Sandrini <rasa@gmx.ch>
*/
using GLib;
public class Vala.CCodeGenerator {
public override void visit_interface (Interface! iface) {
current_symbol = iface;
current_type_symbol = iface;
if (iface.get_cname().len () < 3) {
iface.error = true;
Report.error (iface.source_reference, "Interface name `%s' is too short".printf (iface.get_cname ()));
return;
}
CCodeFragment decl_frag;
CCodeFragment def_frag;
if (iface.access != SymbolAccessibility.PRIVATE) {
decl_frag = header_type_declaration;
def_frag = header_type_definition;
} else {
decl_frag = source_type_member_declaration;
def_frag = source_type_member_declaration;
}
if (!iface.is_static && !iface.declaration_only) {
type_struct = new CCodeStruct ("_%s".printf (iface.get_type_cname ()));
decl_frag.append (new CCodeNewline ());
var macro = "(%s_get_type ())".printf (iface.get_lower_case_cname (null));
decl_frag.append (new CCodeMacroReplacement (iface.get_upper_case_cname ("TYPE_"), macro));
macro = "(G_TYPE_CHECK_INSTANCE_CAST ((obj), %s, %s))".printf (iface.get_upper_case_cname ("TYPE_"), iface.get_cname ());
decl_frag.append (new CCodeMacroReplacement ("%s(obj)".printf (iface.get_upper_case_cname (null)), macro));
macro = "(G_TYPE_CHECK_INSTANCE_TYPE ((obj), %s))".printf (iface.get_upper_case_cname ("TYPE_"));
decl_frag.append (new CCodeMacroReplacement ("%s(obj)".printf (iface.get_upper_case_cname ("IS_")), macro));
macro = "(G_TYPE_INSTANCE_GET_INTERFACE ((obj), %s, %s))".printf (iface.get_upper_case_cname ("TYPE_"), iface.get_type_cname ());
decl_frag.append (new CCodeMacroReplacement ("%s_GET_INTERFACE(obj)".printf (iface.get_upper_case_cname (null)), macro));
decl_frag.append (new CCodeNewline ());
if (iface.source_reference.file.cycle == null) {
decl_frag.append (new CCodeTypeDefinition ("struct _%s".printf (iface.get_cname ()), new CCodeVariableDeclarator (iface.get_cname ())));
decl_frag.append (new CCodeTypeDefinition ("struct %s".printf (type_struct.name), new CCodeVariableDeclarator (iface.get_type_cname ())));
}
type_struct.add_field ("GTypeInterface", "parent");
if (iface.source_reference.comment != null) {
def_frag.append (new CCodeComment (iface.source_reference.comment));
}
def_frag.append (type_struct);
}
iface.accept_children (this);
if (!iface.is_static && !iface.declaration_only) {
add_interface_base_init_function (iface);
var type_fun = new InterfaceRegisterFunction (iface);
type_fun.init_from_type ();
if (iface.access != SymbolAccessibility.PRIVATE) {
header_type_member_declaration.append (type_fun.get_declaration ());
} else {
source_type_member_declaration.append (type_fun.get_declaration ());
}
source_type_member_definition.append (type_fun.get_definition ());
}
current_type_symbol = null;
}
private CCodeFunctionCall! get_param_spec (Property! prop) {
var cspec = new CCodeFunctionCall ();
cspec.add_argument (prop.get_canonical_cconstant ());
cspec.add_argument (new CCodeConstant ("\"foo\""));
cspec.add_argument (new CCodeConstant ("\"bar\""));
if ((prop.type_reference.data_type is Class && ((Class) prop.type_reference.data_type).is_subtype_of (gobject_type)) || prop.type_reference.data_type is Interface) {
cspec.call = new CCodeIdentifier ("g_param_spec_object");
cspec.add_argument (new CCodeIdentifier (prop.type_reference.data_type.get_upper_case_cname ("TYPE_")));
} else if (prop.type_reference.data_type == string_type.data_type) {
cspec.call = new CCodeIdentifier ("g_param_spec_string");
cspec.add_argument (new CCodeConstant ("NULL"));
} else if (prop.type_reference.data_type == int_type.data_type
|| prop.type_reference.data_type is Enum) {
cspec.call = new CCodeIdentifier ("g_param_spec_int");
cspec.add_argument (new CCodeConstant ("G_MININT"));
cspec.add_argument (new CCodeConstant ("G_MAXINT"));
cspec.add_argument (new CCodeConstant ("0"));
} else if (prop.type_reference.data_type == uint_type.data_type) {
cspec.call = new CCodeIdentifier ("g_param_spec_uint");
cspec.add_argument (new CCodeConstant ("0"));
cspec.add_argument (new CCodeConstant ("G_MAXUINT"));
cspec.add_argument (new CCodeConstant ("0U"));
} else if (prop.type_reference.data_type == long_type.data_type) {
cspec.call = new CCodeIdentifier ("g_param_spec_long");
cspec.add_argument (new CCodeConstant ("G_MINLONG"));
cspec.add_argument (new CCodeConstant ("G_MAXLONG"));
cspec.add_argument (new CCodeConstant ("0L"));
} else if (prop.type_reference.data_type == ulong_type.data_type) {
cspec.call = new CCodeIdentifier ("g_param_spec_ulong");
cspec.add_argument (new CCodeConstant ("0"));
cspec.add_argument (new CCodeConstant ("G_MAXULONG"));
cspec.add_argument (new CCodeConstant ("0UL"));
} else if (prop.type_reference.data_type == bool_type.data_type) {
cspec.call = new CCodeIdentifier ("g_param_spec_boolean");
cspec.add_argument (new CCodeConstant ("FALSE"));
} else if (prop.type_reference.data_type == float_type.data_type) {
cspec.call = new CCodeIdentifier ("g_param_spec_float");
cspec.add_argument (new CCodeConstant ("-G_MAXFLOAT"));
cspec.add_argument (new CCodeConstant ("G_MAXFLOAT"));
cspec.add_argument (new CCodeConstant ("0.0F"));
} else if (prop.type_reference.data_type == double_type.data_type) {
cspec.call = new CCodeIdentifier ("g_param_spec_double");
cspec.add_argument (new CCodeConstant ("-G_MAXDOUBLE"));
cspec.add_argument (new CCodeConstant ("G_MAXDOUBLE"));
cspec.add_argument (new CCodeConstant ("0.0"));
} else {
cspec.call = new CCodeIdentifier ("g_param_spec_pointer");
}
var pflags = "G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB";
if (prop.get_accessor != null) {
pflags = "%s%s".printf (pflags, " | G_PARAM_READABLE");
}
if (prop.set_accessor != null) {
pflags = "%s%s".printf (pflags, " | G_PARAM_WRITABLE");
if (prop.set_accessor.construction) {
if (prop.set_accessor.writable) {
pflags = "%s%s".printf (pflags, " | G_PARAM_CONSTRUCT");
} else {
pflags = "%s%s".printf (pflags, " | G_PARAM_CONSTRUCT_ONLY");
}
}
}
cspec.add_argument (new CCodeConstant (pflags));
return cspec;
}
private CCodeFunctionCall! get_signal_creation (Signal! sig, DataType! type) {
var csignew = new CCodeFunctionCall (new CCodeIdentifier ("g_signal_new"));
csignew.add_argument (new CCodeConstant ("\"%s\"".printf (sig.name)));
csignew.add_argument (new CCodeIdentifier (type.get_upper_case_cname ("TYPE_")));
csignew.add_argument (new CCodeConstant ("G_SIGNAL_RUN_LAST"));
csignew.add_argument (new CCodeConstant ("0"));
csignew.add_argument (new CCodeConstant ("NULL"));
csignew.add_argument (new CCodeConstant ("NULL"));
string marshaller = get_signal_marshaller_function (sig);
var marshal_arg = new CCodeIdentifier (marshaller);
csignew.add_argument (marshal_arg);
var params = sig.get_parameters ();
var params_len = params.size;
if (sig.return_type.type_parameter != null) {
csignew.add_argument (new CCodeConstant ("G_TYPE_POINTER"));
} else if (sig.return_type.data_type == null) {
csignew.add_argument (new CCodeConstant ("G_TYPE_NONE"));
} else {
csignew.add_argument (new CCodeConstant (sig.return_type.data_type.get_type_id ()));
}
csignew.add_argument (new CCodeConstant ("%d".printf (params_len)));
foreach (FormalParameter param in params) {
if (param.type_reference.type_parameter != null) {
csignew.add_argument (new CCodeConstant ("G_TYPE_POINTER"));
} else {
csignew.add_argument (new CCodeConstant (param.type_reference.data_type.get_type_id ()));
}
}
marshal_arg.name = marshaller;
return csignew;
}
private void add_interface_base_init_function (Interface! iface) {
var base_init = new CCodeFunction ("%s_base_init".printf (iface.get_lower_case_cname (null)), "void");
base_init.add_parameter (new CCodeFormalParameter ("iface", "%sIface *".printf (iface.get_cname ())));
base_init.modifiers = CCodeModifiers.STATIC;
var init_block = new CCodeBlock ();
/* make sure not to run the initialization code twice */
base_init.block = new CCodeBlock ();
var decl = new CCodeDeclaration (bool_type.get_cname ());
decl.modifiers |= CCodeModifiers.STATIC;
decl.add_declarator (new CCodeVariableDeclarator.with_initializer ("initialized", new CCodeConstant ("FALSE")));
base_init.block.add_statement (decl);
var cif = new CCodeIfStatement (new CCodeUnaryExpression (CCodeUnaryOperator.LOGICAL_NEGATION, new CCodeIdentifier ("initialized")), init_block);
base_init.block.add_statement (cif);
init_block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("initialized"), new CCodeConstant ("TRUE"))));
/* create properties */
var props = iface.get_properties ();
foreach (Property prop in props) {
var cinst = new CCodeFunctionCall (new CCodeIdentifier ("g_object_interface_install_property"));
cinst.add_argument (new CCodeIdentifier ("iface"));
cinst.add_argument (get_param_spec (prop));
init_block.add_statement (new CCodeExpressionStatement (cinst));
}
/* create signals */
foreach (Signal sig in iface.get_signals ()) {
init_block.add_statement (new CCodeExpressionStatement (get_signal_creation (sig, iface)));
}
source_type_member_definition.append (base_init);
}
}
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