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Diffstat (limited to 'vala/valaproperty.vala')
| -rw-r--r-- | vala/valaproperty.vala | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/vala/valaproperty.vala b/vala/valaproperty.vala new file mode 100644 index 000000000..16b5b29bb --- /dev/null +++ b/vala/valaproperty.vala @@ -0,0 +1,231 @@ +/* valaproperty.vala + * + * Copyright (C) 2006-2007 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 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; + +/** + * Represents a property declaration in the source code. + */ +public class Vala.Property : Member, Lockable { + /** + * The property name. + */ + public string! name { get; set construct; } + + /** + * The property type. + */ + public TypeReference! type_reference { get; set construct; } + + /** + * The get accessor of this property if available. + */ + public PropertyAccessor get_accessor { get; set; } + + /** + * The set/construct accessor of this property if available. + */ + public PropertyAccessor set_accessor { get; set; } + + /** + * Specifies the accessibility of this property. Public accessibility + * doesn't limit access. Default accessibility limits access to this + * program or library. Private accessibility limits access to the parent + * class. + */ + public MemberAccessibility access { get; set; } + + /** + * Represents the generated ´this' parameter in this property. + */ + public FormalParameter this_parameter { get; set; } + + /** + * Specifies whether the implementation of this property does not + * provide getter/setter methods. + */ + public bool no_accessor_method { get; set; } + + /** + * Specifies whether automatic accessor code generation should be + * disabled. + */ + public bool interface_only { get; set; } + + /** + * Specifies whether this property is abstract. Abstract properties have + * no accessor bodies, may only be specified within abstract classes and + * interfaces, and must be overriden by derived non-abstract classes. + */ + public bool is_abstract { get; set; } + + /** + * Specifies whether this property is virtual. Virtual properties may be + * overridden by derived classes. + */ + public bool is_virtual { get; set; } + + /** + * Specifies whether this property overrides a virtual or abstract + * property of a base type. + */ + public bool overrides { get; set; } + + /** + * Specifies the virtual or abstract property this property overrides. + * Reference must be weak as virtual properties set base_property to + * themselves. + */ + public weak Property base_property { get; set; } + + /** + * Specifies the abstract interface property this property implements. + */ + public Property base_interface_property { get; set; } + + private bool lock_used = false; + + /** + * Creates a new property. + * + * @param name property name + * @param type property type + * @param get_accessor get accessor + * @param set_accessor set/construct accessor + * @param source reference to source code + * @return newly created property + */ + public Property (string! _name, TypeReference! type, PropertyAccessor _get_accessor, PropertyAccessor _set_accessor, SourceReference source) { + name = _name; + type_reference = type; + get_accessor = _get_accessor; + set_accessor = _set_accessor; + source_reference = source; + } + + public override void accept (CodeVisitor! visitor) { + visitor.visit_member (this); + visitor.visit_begin_property (this); + + type_reference.accept (visitor); + + if (get_accessor != null) { + get_accessor.accept (visitor); + } + if (set_accessor != null) { + set_accessor.accept (visitor); + } + + visitor.visit_end_property (this); + } + + /** + * Returns the C name of this property in upper case. Words are + * separated by underscores. The upper case C name of the class is + * prefix of the result. + * + * @return the upper case name to be used in C code + */ + public ref string! get_upper_case_cname () { + return "%s_%s".printf (((DataType) symbol.parent_symbol.node).get_lower_case_cname (null), Namespace.camel_case_to_lower_case (name)).up (); + } + + /** + * Returns the string literal of this property to be used in C code. + * + * @return string literal to be used in C code + */ + public ref CCodeConstant! get_canonical_cconstant () { + var str = new String ("\""); + + string i = name; + + while (i.len () > 0) { + unichar c = i.get_char (); + if (c == '_') { + str.append_c ('-'); + } else { + str.append_unichar (c); + } + + i = i.next_char (); + } + + str.append_c ('"'); + + return new CCodeConstant (str.str); + } + + /** + * Process all associated attributes. + */ + public void process_attributes () { + foreach (Attribute a in attributes) { + if (a.name == "NoAccessorMethod") { + no_accessor_method = true; + } + } + } + + public bool get_lock_used () { + return lock_used; + } + + public void set_lock_used (bool used) { + lock_used = used; + } + + /** + * Checks whether the accessors and type of the specified property + * matches this property. + * + * @param prop a property + * @return true if the specified property is compatible to this + * property + */ + public bool equals (Property! prop2) { + if (!prop2.type_reference.equals (type_reference)) { + return false; + } + + if ((get_accessor == null && prop2.get_accessor != null) || + (get_accessor != null && prop2.get_accessor == null)) { + return false; + } + + if ((set_accessor == null && prop2.set_accessor != null) || + (set_accessor != null && prop2.set_accessor == null)) { + return false; + } + + if (set_accessor != null) { + if (set_accessor.writable != prop2.set_accessor.writable) { + return false; + } + if (set_accessor.construction != prop2.set_accessor.construction) { + return false; + } + } + + return true; + } +} |