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/* valaccodebinding.vala
*
* Copyright (C) 2007-2008 Jürg Billeter
*
* 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>
*/
using GLib;
/**
* The link between a source code node and generated code.
*/
public abstract class Vala.CCodeBinding : CodeBinding {
/**
* The C Code generator.
*/
public CCodeGenerator codegen { get; set; }
/**
* Generate code for this source code node.
*/
public virtual void emit () {
}
public CCodeIdentifier get_value_setter_function (DataType type_reference) {
if (type_reference.data_type != null) {
return new CCodeIdentifier (type_reference.data_type.get_set_value_function ());
} else {
return new CCodeIdentifier ("g_value_set_pointer");
}
}
public CCodeExpression get_construct_property_assignment (CCodeConstant canonical_cconstant, DataType property_type, CCodeExpression value) {
// this property is used as a construction parameter
var cpointer = new CCodeIdentifier ("__params_it");
var ccomma = new CCodeCommaExpression ();
// set name in array for current parameter
var cnamemember = new CCodeMemberAccess.pointer (cpointer, "name");
var cnameassign = new CCodeAssignment (cnamemember, canonical_cconstant);
ccomma.append_expression (cnameassign);
var gvaluearg = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeMemberAccess.pointer (cpointer, "value"));
// initialize GValue in array for current parameter
var cvalueinit = new CCodeFunctionCall (new CCodeIdentifier ("g_value_init"));
cvalueinit.add_argument (gvaluearg);
cvalueinit.add_argument (new CCodeIdentifier (property_type.get_type_id ()));
ccomma.append_expression (cvalueinit);
// set GValue for current parameter
var cvalueset = new CCodeFunctionCall (get_value_setter_function (property_type));
cvalueset.add_argument (gvaluearg);
cvalueset.add_argument (value);
ccomma.append_expression (cvalueset);
// move pointer to next parameter in array
ccomma.append_expression (new CCodeUnaryExpression (CCodeUnaryOperator.POSTFIX_INCREMENT, cpointer));
return ccomma;
}
public CCodeBinding? code_binding (CodeNode node) {
return (CCodeBinding) node.get_code_binding (codegen);
}
public CCodeMethodBinding method_binding (Method node) {
return (CCodeMethodBinding) node.get_code_binding (codegen);
}
public CCodeArrayCreationExpressionBinding array_creation_expression_binding (ArrayCreationExpression node) {
return (CCodeArrayCreationExpressionBinding) node.get_code_binding (codegen);
}
public CCodeElementAccessBinding element_access_binding (ElementAccess node) {
return (CCodeElementAccessBinding) node.get_code_binding (codegen);
}
public CCodeAssignmentBinding assignment_binding (Assignment node) {
return (CCodeAssignmentBinding) node.get_code_binding (codegen);
}
}
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