[gnome-calculator/60-split-out-a-backend-library: 6/39] gcalc: added ErrorResult and properties to Result

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 606d02f1c6c03918dfca93cc95b6909a35b13db0
Author: Daniel Espinosa <esodan gmail com>
Date:   Wed Dec 5 18:41:52 2018 -0600

    gcalc: added ErrorResult and properties to Result
    
    Preparetions to create equivalent Equation based on Gtk.SourceBuffer

 gcalc/gcalc-error-result.vala | 27 +++++++++++++++++++++++++++
 gcalc/gcalc-result.vala       |  2 ++
 gcalc/meson.build             |  6 ++++--
 3 files changed, 33 insertions(+), 2 deletions(-)
---
diff --git a/gcalc/gcalc-error-result.vala b/gcalc/gcalc-error-result.vala
new file mode 100644
index 00000000..a44ddb80
--- /dev/null
+++ b/gcalc/gcalc-error-result.vala
@@ -0,0 +1,27 @@
+/* gcalc-error-result.vala
+ *
+ * Copyright (C) 2018  Daniel Espinosa <esodan gmail com>
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *      Daniel Espinosa <esodan gmail com>
+ */
+public interface GCalc.ErrorResult : Object {
+  public abstract uint start { get; }
+  public abstract uint end { get; }
+  public abstract uint representation_base { get; }
+  public abstract string to_string ();
+}
+
diff --git a/gcalc/gcalc-result.vala b/gcalc/gcalc-result.vala
index 4e99130f..814d6ff9 100644
--- a/gcalc/gcalc-result.vala
+++ b/gcalc/gcalc-result.vala
@@ -21,5 +21,7 @@
 public interface GCalc.Result : Object {
   public abstract bool is_valid { get; }
   public abstract string to_string ();
+  public abstract Number number { get; }
+  public abstract ErrorResult error { get; }
 }
 
diff --git a/gcalc/meson.build b/gcalc/meson.build
index 8b97ff01..fb430539 100644
--- a/gcalc/meson.build
+++ b/gcalc/meson.build
@@ -39,17 +39,19 @@ configure_file(output : 'config.h',
        configuration : confh)
 
 sources = files([
-       'gcalc-solver.vala',
-       'gcalc-result.vala',
        'gcalc-currency.vala',
        'gcalc-equation.vala',
        'gcalc-equation-parser.vala',
        'gcalc-equation-lexer.vala',
+       'gcalc-error-result.vala',
        'gcalc-function-manager.vala',
+       'gcalc-math-equation.vala',
        'gcalc-math-function.vala',
        'gcalc-math-variables.vala',
        'gcalc-number.vala',
+       'gcalc-result.vala',
        'gcalc-serializer.vala',
+       'gcalc-solver.vala',
        'gcalc-unit-manager.vala'
 ])