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/* valaparser.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;
/**
* Code visitor parsing all Vala source files.
*/
public class Vala.Parser : CodeVisitor {
private string comment;
private string _file_comment;
/**
* Parse all source files in the specified code context and build a
* code tree.
*
* @param context a code context
*/
public void parse (CodeContext! context) {
context.accept (this);
}
public override void visit_source_file (SourceFile! source_file) {
if (source_file.filename.has_suffix (".vala")) {
parse_file (source_file);
source_file.comment = _file_comment;
}
source_file.accept_children (this);
_file_comment = null;
}
/**
* Adds the specified comment to the comment stack.
*
* @param comment_item a comment string
* @param file_comment true if file header comment, false otherwise
*/
public void push_comment (string! comment_item, bool file_comment) {
if (comment == null) {
comment = comment_item;
} else {
comment = "%s\n%s".printf (comment, comment_item);
}
if (file_comment) {
_file_comment = comment;
comment = null;
}
}
/**
* Clears and returns the content of the comment stack.
*
* @return saved comment
*/
public ref string pop_comment () {
if (comment == null) {
return null;
}
String result = new String (comment);
comment = null;
weak string index;
while ((index = result.str.chr (-1, '\t')) != null) {
result.erase (result.str.pointer_to_offset (index), 1);
}
return result.str;
}
[Import ()]
public void parse_file (SourceFile! source_file);
}
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