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/* valaerrordomain.vala
*
* Copyright (C) 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;
using Gee;
/**
* Represents an error domain declaration in the source code.
*/
public class Vala.ErrorDomain : TypeSymbol {
private Gee.List<ErrorCode> codes = new ArrayList<ErrorCode> ();
private Gee.List<Method> methods = new ArrayList<Method> ();
private string cname;
private string cprefix;
private string lower_case_cprefix;
private string lower_case_csuffix;
/**
* Creates a new error domain.
*
* @param name type name
* @param source_reference reference to source code
* @return newly created error domain
*/
public ErrorDomain (string name, SourceReference? source_reference = null) {
this.source_reference = source_reference;
this.name = name;
}
/**
* Appends the specified code to the list of error codes.
*
* @param ecode an error code
*/
public void add_code (ErrorCode ecode) {
codes.add (ecode);
scope.add (ecode.name, ecode);
}
/**
* Adds the specified method as a member to this error domain.
*
* @param m a method
*/
public void add_method (Method m) {
if (m is CreationMethod) {
Report.error (m.source_reference, "construction methods may only be declared within classes and structs");
m.error = true;
return;
}
if (m.binding == MemberBinding.INSTANCE) {
m.this_parameter = new FormalParameter ("this", new ValueType (this));
m.scope.add (m.this_parameter.name, m.this_parameter);
}
methods.add (m);
scope.add (m.name, m);
}
/**
* Returns a copy of the list of error codes.
*
* @return list of error codes
*/
public Gee.List<ErrorCode> get_codes () {
return new ReadOnlyList<ErrorCode> (codes);
}
/**
* Returns a copy of the list of methods.
*
* @return list of methods
*/
public Gee.List<Method> get_methods () {
return new ReadOnlyList<Method> (methods);
}
public override void accept (CodeVisitor visitor) {
visitor.visit_error_domain (this);
}
public override void accept_children (CodeVisitor visitor) {
foreach (ErrorCode ecode in codes) {
ecode.accept (visitor);
}
foreach (Method m in methods) {
m.accept (visitor);
}
}
public override string get_cname (bool const_type = false) {
if (cname == null) {
cname = "%s%s".printf (parent_symbol.get_cprefix (), name);
}
return cname;
}
public override string get_lower_case_cprefix () {
if (lower_case_cprefix == null) {
lower_case_cprefix = "%s_".printf (get_lower_case_cname (null));
}
return lower_case_cprefix;
}
private string get_lower_case_csuffix () {
if (lower_case_csuffix == null) {
lower_case_csuffix = camel_case_to_lower_case (name);
}
return lower_case_csuffix;
}
public override string? get_lower_case_cname (string? infix) {
if (infix == null) {
infix = "";
}
return "%s%s%s".printf (parent_symbol.get_lower_case_cprefix (), infix, get_lower_case_csuffix ());
}
public override string? get_upper_case_cname (string? infix) {
return get_lower_case_cname (null).up ();
}
public override bool is_reference_type () {
return false;
}
private void set_cname (string cname) {
this.cname = cname;
}
/**
* Returns the string to be prepended to the name of members of this
* error domain when used in C code.
*
* @return the prefix to be used in C code
*/
public string get_cprefix () {
if (cprefix == null) {
cprefix = "%s_".printf (get_upper_case_cname (null));
}
return cprefix;
}
/**
* Sets the string to be prepended to the name of members of this error
* domain when used in C code.
*
* @param cprefix the prefix to be used in C code
*/
public void set_cprefix (string cprefix) {
this.cprefix = cprefix;
}
private void process_ccode_attribute (Attribute a) {
if (a.has_argument ("cname")) {
set_cname (a.get_string ("cname"));
}
if (a.has_argument ("cprefix")) {
set_cprefix (a.get_string ("cprefix"));
}
if (a.has_argument ("lower_case_csuffix")) {
lower_case_csuffix = a.get_string ("lower_case_csuffix");
}
if (a.has_argument ("cheader_filename")) {
var val = a.get_string ("cheader_filename");
foreach (string filename in val.split (",")) {
add_cheader_filename (filename);
}
}
}
/**
* Process all associated attributes.
*/
public void process_attributes () {
foreach (Attribute a in attributes) {
if (a.name == "CCode") {
process_ccode_attribute (a);
}
}
}
public override string? get_type_id () {
return "G_TYPE_POINTER";
}
public override string? get_marshaller_type_name () {
return "POINTER";
}
public override string? get_get_value_function () {
return "g_value_get_pointer";
}
public override string? get_set_value_function () {
return "g_value_set_pointer";
}
}
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