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Diffstat (limited to 'vala/valasymbolbuilder.vala')
| -rw-r--r-- | vala/valasymbolbuilder.vala | 427 |
1 files changed, 0 insertions, 427 deletions
diff --git a/vala/valasymbolbuilder.vala b/vala/valasymbolbuilder.vala deleted file mode 100644 index 31be7f90d..000000000 --- a/vala/valasymbolbuilder.vala +++ /dev/null @@ -1,427 +0,0 @@ -/* valasymbolbuilder.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 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; - -/** - * Code visitor building the symbol tree. - */ -public class Vala.SymbolBuilder : CodeVisitor { - Symbol root; - Symbol current_type; - Symbol current_symbol; - - /** - * Build the symbol tree for the specified code context. - * - * @param context a code context - */ - public void build (CodeContext! context) { - root = context.root; - context.accept (this); - } - - public override void visit_namespace (Namespace! ns) { - if (ns.name == null) { - ns.symbol = root; - } - - if (ns.symbol == null) { - ns.symbol = root.lookup (ns.name); - } - if (ns.symbol == null) { - ns.symbol = new Symbol (ns); - root.add (ns.name, ns.symbol); - } - - current_symbol = ns.symbol; - - ns.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - private weak Symbol add_symbol (string name, CodeNode! node) { - if (name != null) { - if (current_symbol.lookup (name) != null) { - node.error = true; - Report.error (node.source_reference, "`%s' already contains a definition for `%s'".printf (current_symbol.get_full_name (), name)); - return null; - } - } - node.symbol = new Symbol (node); - if (name != null) { - current_symbol.add (name, node.symbol); - } else { - node.symbol.parent_symbol = current_symbol; - } - - return node.symbol; - } - - public override void visit_class (Class! cl) { - if (cl.error) { - /* skip classes with errors */ - return; - } - - var class_symbol = current_symbol.lookup (cl.name); - if (class_symbol == null || !(class_symbol.node is Class)) { - class_symbol = add_symbol (cl.name, cl); - } else { - /* merge this class declaration with existing class symbol */ - var main_class = (Class) class_symbol.node; - foreach (TypeReference base_type in cl.get_base_types ()) { - main_class.add_base_type (base_type); - } - foreach (Field f in cl.get_fields ()) { - main_class.add_field (f); - } - foreach (Method m in cl.get_methods ()) { - main_class.add_method (m); - } - foreach (Property prop in cl.get_properties ()) { - main_class.add_property (prop, true); - } - foreach (Signal sig in cl.get_signals ()) { - main_class.add_signal (sig); - } - if (cl.constructor != null) { - if (main_class.constructor != null) { - cl.error = true; - Report.error (cl.constructor.source_reference, "`%s' already contains a constructor".printf (current_symbol.get_full_name ())); - return; - } - main_class.constructor = cl.constructor; - } - if (cl.destructor != null) { - if (main_class.destructor != null) { - cl.error = true; - Report.error (cl.destructor.source_reference, "`%s' already contains a destructor".printf (current_symbol.get_full_name ())); - return; - } - main_class.destructor = cl.destructor; - } - } - - current_symbol = class_symbol; - - cl.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - - if (cl.symbol == null) { - /* remove merged class */ - cl.@namespace.remove_class (cl); - if (cl.source_reference != null) { - cl.source_reference.file.remove_node (cl); - } - } - } - - public override void visit_struct (Struct! st) { - if (st.error) { - /* skip structs with errors */ - return; - } - - if (add_symbol (st.name, st) == null) { - return; - } - - current_symbol = st.symbol; - - st.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_interface (Interface! iface) { - if (iface.error) { - /* skip interfaces with errors */ - return; - } - - if (add_symbol (iface.name, iface) == null) { - return; - } - - current_symbol = iface.symbol; - - iface.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_enum (Enum! en) { - if (en.error) { - /* skip enums with errors */ - return; - } - - if (add_symbol (en.name, en) == null) { - return; - } - - current_symbol = en.symbol; - - en.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_enum_value (EnumValue! ev) { - ev.symbol = new Symbol (ev); - current_symbol.add (ev.name, ev.symbol); - } - - public override void visit_flags (Flags! fl) { - if (fl.error) { - /* skip flags with errors */ - return; - } - - if (add_symbol (fl.name, fl) == null) { - return; - } - - current_symbol = fl.symbol; - - fl.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_flags_value (FlagsValue! fv) { - fv.symbol = new Symbol (fv); - current_symbol.add (fv.name, fv.symbol); - } - - public override void visit_callback (Callback! cb) { - if (cb.error) { - /* skip enums with errors */ - return; - } - - if (add_symbol (cb.name, cb) == null) { - return; - } - - current_symbol = cb.symbol; - - cb.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_constant (Constant! c) { - add_symbol (c.name, c); - } - - public override void visit_field (Field! f) { - add_symbol (f.name, f); - } - - public override void visit_method (Method! m) { - if (add_symbol (m.name, m) == null) { - return; - } - - if (m.instance) { - if (!(m.symbol.parent_symbol.node is DataType)) { - Report.error (m.source_reference, "instance methods not allowed outside of data types"); - - m.error = true; - return; - } - - m.this_parameter = new FormalParameter ("this", new TypeReference ()); - m.this_parameter.type_reference.data_type = (DataType) m.symbol.parent_symbol.node; - m.this_parameter.symbol = new Symbol (m.this_parameter); - current_symbol.add (m.this_parameter.name, m.this_parameter.symbol); - } - - current_symbol = m.symbol; - - m.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_creation_method (CreationMethod! m) { - if (add_symbol (m.name, m) == null) { - return; - } - - var type_node = m.symbol.parent_symbol.node; - if (!(type_node is Class || type_node is Struct)) { - Report.error (m.source_reference, "construction methods may only be declared within classes and structs"); - - m.error = true; - return; - } - - if (m.name == null) { - if (type_node is Class) { - ((Class) type_node).default_construction_method = m; - } else if (type_node is Struct) { - ((Struct) type_node).default_construction_method = m; - } - } - - current_symbol = m.symbol; - - m.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_formal_parameter (FormalParameter! p) { - if (!p.ellipsis) { - add_symbol (p.name, p); - } - } - - public override void visit_property (Property! prop) { - if (prop.error) { - /* skip properties with errors */ - return; - } - - if (add_symbol (prop.name, prop) == null) { - return; - } - - current_symbol = prop.symbol; - - prop.this_parameter = new FormalParameter ("this", new TypeReference ()); - prop.this_parameter.type_reference.data_type = (DataType) prop.symbol.parent_symbol.node; - prop.this_parameter.symbol = new Symbol (prop.this_parameter); - current_symbol.add (prop.this_parameter.name, prop.this_parameter.symbol); - - prop.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_property_accessor (PropertyAccessor! acc) { - acc.symbol = new Symbol (acc); - acc.symbol.parent_symbol = current_symbol; - - if (acc.source_reference.file.pkg) { - return; - } - - current_symbol = acc.symbol; - - if (acc.writable || acc.construction) { - acc.value_parameter = new FormalParameter ("value", ((Property) current_symbol.parent_symbol.node).type_reference); - acc.value_parameter.symbol = new Symbol (acc.value_parameter); - - current_symbol.add (acc.value_parameter.name, acc.value_parameter.symbol); - } - - if (acc.body == null) { - /* no accessor body specified, insert default body */ - - var prop = (Property) acc.symbol.parent_symbol.node; - - if (prop.interface_only || prop.is_abstract) { - current_symbol = current_symbol.parent_symbol; - return; - } - - var block = new Block (); - if (acc.readable) { - block.add_statement (new ReturnStatement (new MemberAccess.simple ("_%s".printf (prop.name)))); - } else { - block.add_statement (new ExpressionStatement (new Assignment (new MemberAccess.simple ("_%s".printf (prop.name)), new MemberAccess.simple ("value")))); - } - acc.body = block; - } - - acc.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_signal (Signal! sig) { - if (sig.error) { - /* skip signals with errors */ - return; - } - - if (add_symbol (sig.name, sig) == null) { - return; - } - - current_symbol = sig.symbol; - - sig.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_constructor (Constructor! c) { - c.symbol = new Symbol (c); - c.symbol.parent_symbol = current_symbol; - current_symbol = c.symbol; - - c.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_destructor (Destructor! d) { - d.symbol = new Symbol (d); - d.symbol.parent_symbol = current_symbol; - current_symbol = d.symbol; - - d.accept_children (this); - - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_try_statement (TryStatement! stmt) { - stmt.accept_children (this); - } - - public override void visit_catch_clause (CatchClause! clause) { - clause.accept_children (this); - } - - public override void visit_begin_block (Block! b) { - b.symbol = new Symbol (b); - b.symbol.parent_symbol = current_symbol; - current_symbol = b.symbol; - } - - public override void visit_end_block (Block! b) { - current_symbol = current_symbol.parent_symbol; - } - - public override void visit_type_parameter (TypeParameter! p) { - add_symbol (p.name, p); - } -} - |