[gnome-builder] tmpl-glib: add support for string equality

[Christian Hergert <chergert src gnome org>]

commit b2cb437635777daf5f5990929a3590634c1dc2e1
Author: Christian Hergert <chergert redhat com>
Date:   Fri Apr 22 04:09:28 2016 -0700

    tmpl-glib: add support for string equality

 contrib/tmpl/tmpl-expr-eval.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/contrib/tmpl/tmpl-expr-eval.c b/contrib/tmpl/tmpl-expr-eval.c
index 8983e5c..44d076e 100644
--- a/contrib/tmpl/tmpl-expr-eval.c
+++ b/contrib/tmpl/tmpl-expr-eval.c
@@ -958,6 +958,21 @@ add_string_string (const GValue  *left,
   return TRUE;
 }
 
+static gboolean
+eq_string_string (const GValue  *left,
+                  const GValue  *right,
+                  GValue        *return_value,
+                  GError       **error)
+{
+  const gchar *left_str = g_value_get_string (left);
+  const gchar *right_str = g_value_get_string (right);
+
+  g_value_init (return_value, G_TYPE_BOOLEAN);
+  g_value_set_boolean (return_value, 0 == g_strcmp0 (left_str, right_str));
+
+  return TRUE;
+}
+
 #define SIMPLE_OP_FUNC(func_name, ret_type, set_func, get_left, op, get_right)  \
 static gboolean                                                                 \
 func_name (const GValue  *left,                                                 \
@@ -979,6 +994,7 @@ SIMPLE_OP_FUNC (mul_double_double, G_TYPE_DOUBLE,  set_double,  get_double, *,
 SIMPLE_OP_FUNC (lt_double_double,  G_TYPE_BOOLEAN, set_boolean, get_double, <,  get_double)
 SIMPLE_OP_FUNC (lte_double_double, G_TYPE_BOOLEAN, set_boolean, get_double, <=, get_double)
 SIMPLE_OP_FUNC (gt_double_double,  G_TYPE_BOOLEAN, set_boolean, get_double, >,  get_double)
+SIMPLE_OP_FUNC (eq_double_double,  G_TYPE_BOOLEAN, set_boolean, get_double, ==, get_double)
 SIMPLE_OP_FUNC (gte_double_double, G_TYPE_BOOLEAN, set_boolean, get_double, >=, get_double)
 
 #undef SIMPLE_OP_FUNC
@@ -1005,8 +1021,10 @@ build_dispatch_table (void)
   ADD_DISPATCH_FUNC (TMPL_EXPR_GT,          G_TYPE_DOUBLE, G_TYPE_DOUBLE, gt_double_double);
   ADD_DISPATCH_FUNC (TMPL_EXPR_LTE,         G_TYPE_DOUBLE, G_TYPE_DOUBLE, lte_double_double);
   ADD_DISPATCH_FUNC (TMPL_EXPR_GTE,         G_TYPE_DOUBLE, G_TYPE_DOUBLE, gte_double_double);
+  ADD_DISPATCH_FUNC (TMPL_EXPR_EQ,          G_TYPE_DOUBLE, G_TYPE_DOUBLE, eq_double_double);
   ADD_DISPATCH_FUNC (TMPL_EXPR_MUL,         G_TYPE_STRING, G_TYPE_DOUBLE, mul_string_double);
   ADD_DISPATCH_FUNC (TMPL_EXPR_MUL,         G_TYPE_DOUBLE, G_TYPE_STRING, mul_double_string);
+  ADD_DISPATCH_FUNC (TMPL_EXPR_EQ,          G_TYPE_STRING, G_TYPE_STRING, eq_string_string);
 
 #undef ADD_DISPATCH_FUNC