[gtk/redo-superset: 5/5] Remove no longer needed code

[Matthias Clasen <matthiasc src gnome org>]

commit e16a3b6232c79bfa898b87adf29c8ea0ff3f4052
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jan 17 11:12:13 2020 -0500

    Remove no longer needed code
    
    We no longer use superset or any matchers to find changes.

 gtk/gtkcssmatcher.c        | 170 ---------------------------------------------
 gtk/gtkcssmatcherprivate.h |  19 +----
 gtk/gtkcssselector.c       |  10 ---
 3 files changed, 1 insertion(+), 198 deletions(-)
---
diff --git a/gtk/gtkcssmatcher.c b/gtk/gtkcssmatcher.c
index 86e5540a47..ea082b1408 100644
--- a/gtk/gtkcssmatcher.c
+++ b/gtk/gtkcssmatcher.c
@@ -398,173 +398,3 @@ _gtk_css_matcher_node_init (GtkCssMatcher *matcher,
   matcher->node.classes = gtk_css_node_declaration_get_classes (gtk_css_node_get_declaration (node),
                                                                 &matcher->node.n_classes);
 }
-
-/* GTK_CSS_MATCHER_ANY */
-
-static gboolean
-gtk_css_matcher_any_get_parent (GtkCssMatcher       *matcher,
-                                const GtkCssMatcher *child)
-{
-  _gtk_css_matcher_any_init (matcher);
-
-  return TRUE;
-}
-
-static gboolean
-gtk_css_matcher_any_get_previous (GtkCssMatcher       *matcher,
-                                  const GtkCssMatcher *next)
-{
-  _gtk_css_matcher_any_init (matcher);
-
-  return TRUE;
-}
-
-static gboolean
-gtk_css_matcher_any_has_state (const GtkCssMatcher *matcher,
-                               GtkStateFlags        state)
-{
-  return TRUE;
-}
-
-static gboolean
-gtk_css_matcher_any_has_name (const GtkCssMatcher     *matcher,
-                              /*interned*/ const char *name)
-{
-  return TRUE;
-}
-
-static gboolean
-gtk_css_matcher_any_has_class (const GtkCssMatcher *matcher,
-                               GQuark               class_name)
-{
-  return TRUE;
-}
-
-static gboolean
-gtk_css_matcher_any_has_id (const GtkCssMatcher *matcher,
-                                    const char          *id)
-{
-  return TRUE;
-}
-
-static gboolean
-gtk_css_matcher_any_has_position (const GtkCssMatcher *matcher,
-                                  gboolean             forward,
-                                  int                  a,
-                                  int                  b)
-{
-  return TRUE;
-}
-
-static void
-gtk_css_matcher_any_print (const GtkCssMatcher *matcher,
-                           GString             *string)
-{
-  g_string_append (string, "ANY");
-}
-
-static const GtkCssMatcherClass GTK_CSS_MATCHER_ANY = {
-  GTK_CSS_MATCHER_TYPE_ANY,
-  gtk_css_matcher_any_get_parent,
-  gtk_css_matcher_any_get_previous,
-  gtk_css_matcher_any_has_state,
-  gtk_css_matcher_any_has_name,
-  gtk_css_matcher_any_has_class,
-  gtk_css_matcher_any_has_id,
-  gtk_css_matcher_any_has_position,
-  gtk_css_matcher_any_print
-};
-
-void
-_gtk_css_matcher_any_init (GtkCssMatcher *matcher)
-{
-  matcher->klass = &GTK_CSS_MATCHER_ANY;
-}
-
-/* GTK_CSS_MATCHER_SUPERSET */
-
-static gboolean
-gtk_css_matcher_superset_get_parent (GtkCssMatcher       *matcher,
-                                     const GtkCssMatcher *child)
-{
-  _gtk_css_matcher_any_init (matcher);
-
-  return TRUE;
-}
-
-static gboolean
-gtk_css_matcher_superset_get_previous (GtkCssMatcher       *matcher,
-                                       const GtkCssMatcher *next)
-{
-  _gtk_css_matcher_any_init (matcher);
-
-  return TRUE;
-}
-
-static gboolean
-gtk_css_matcher_superset_has_state (const GtkCssMatcher *matcher,
-                                    GtkStateFlags        state)
-{
-  return TRUE;
-}
-
-static gboolean
-gtk_css_matcher_superset_has_name (const GtkCssMatcher     *matcher,
-                                   /*interned*/ const char *name)
-{
-  return _gtk_css_matcher_has_name (matcher->superset.subset, name);
-}
-
-static gboolean
-gtk_css_matcher_superset_has_class (const GtkCssMatcher *matcher,
-                                    GQuark               class_name)
-{
-  return _gtk_css_matcher_has_class (matcher->superset.subset, class_name);
-}
-
-static gboolean
-gtk_css_matcher_superset_has_id (const GtkCssMatcher *matcher,
-                                 const char          *id)
-{
-  return _gtk_css_matcher_has_id (matcher->superset.subset, id);
-}
-
-static gboolean
-gtk_css_matcher_superset_has_position (const GtkCssMatcher *matcher,
-                                       gboolean             forward,
-                                       int                  a,
-                                       int                  b)
-{
-  return TRUE;
-}
-
-static void
-gtk_css_matcher_superset_print (const GtkCssMatcher *matcher,
-                                GString             *string)
-{
-  g_string_append (string, "SUPERSET(");
-  gtk_css_matcher_print (matcher->superset.subset, string);
-  g_string_append (string, ")");
-}
-
-static const GtkCssMatcherClass GTK_CSS_MATCHER_SUPERSET = {
-  GTK_CSS_MATCHER_TYPE_SUPERSET,
-  gtk_css_matcher_superset_get_parent,
-  gtk_css_matcher_superset_get_previous,
-  gtk_css_matcher_superset_has_state,
-  gtk_css_matcher_superset_has_name,
-  gtk_css_matcher_superset_has_class,
-  gtk_css_matcher_superset_has_id,
-  gtk_css_matcher_superset_has_position,
-  gtk_css_matcher_superset_print
-};
-
-void
-_gtk_css_matcher_superset_init (GtkCssMatcher       *matcher,
-                                const GtkCssMatcher *subset)
-{
-  g_return_if_fail (subset != NULL);
-
-  matcher->superset.klass = &GTK_CSS_MATCHER_SUPERSET;
-  matcher->superset.subset = subset;
-}
diff --git a/gtk/gtkcssmatcherprivate.h b/gtk/gtkcssmatcherprivate.h
index 094957bdaa..69b4f0e2e4 100644
--- a/gtk/gtkcssmatcherprivate.h
+++ b/gtk/gtkcssmatcherprivate.h
@@ -31,9 +31,7 @@ typedef struct _GtkCssMatcherClass GtkCssMatcherClass;
 
 typedef enum {
   GTK_CSS_MATCHER_TYPE_NODE,
-  GTK_CSS_MATCHER_TYPE_WIDGET_PATH,
- GTK_CSS_MATCHER_TYPE_ANY,
- GTK_CSS_MATCHER_TYPE_SUPERSET
+  GTK_CSS_MATCHER_TYPE_WIDGET_PATH
 } GtkCssMatcherType;
 
 struct _GtkCssMatcherClass {
@@ -77,16 +75,10 @@ struct _GtkCssMatcherNode {
   guint                     n_classes;
 };
 
-struct _GtkCssMatcherSuperset {
-  const GtkCssMatcherClass *klass;
-  const GtkCssMatcher      *subset;
-};
-
 union _GtkCssMatcher {
   const GtkCssMatcherClass *klass;
   GtkCssMatcherWidgetPath   path;
   GtkCssMatcherNode         node;
-  GtkCssMatcherSuperset     superset;
 };
 
 gboolean          _gtk_css_matcher_init           (GtkCssMatcher          *matcher,
@@ -94,9 +86,6 @@ gboolean          _gtk_css_matcher_init           (GtkCssMatcher          *match
                                                    const GtkCssNodeDeclaration *decl) 
G_GNUC_WARN_UNUSED_RESULT;
 void              _gtk_css_matcher_node_init      (GtkCssMatcher          *matcher,
                                                    GtkCssNode             *node);
-void              _gtk_css_matcher_any_init       (GtkCssMatcher          *matcher);
-void              _gtk_css_matcher_superset_init  (GtkCssMatcher          *matcher,
-                                                   const GtkCssMatcher    *subset);
 
 void              gtk_css_matcher_print           (const GtkCssMatcher    *matcher,
                                                    GString                *string);
@@ -154,12 +143,6 @@ _gtk_css_matcher_has_position (const GtkCssMatcher *matcher,
   return matcher->klass->has_position (matcher, forward, a, b);
 }
 
-static inline gboolean
-_gtk_css_matcher_matches_any (const GtkCssMatcher *matcher)
-{
-  return matcher->klass->type == GTK_CSS_MATCHER_TYPE_ANY;
-}
-
 G_END_DECLS
 
 #endif /* __GTK_CSS_MATCHER_PRIVATE_H__ */
diff --git a/gtk/gtkcssselector.c b/gtk/gtkcssselector.c
index 6909d86f6d..bfc0dfe58b 100644
--- a/gtk/gtkcssselector.c
+++ b/gtk/gtkcssselector.c
@@ -295,11 +295,6 @@ gtk_css_selector_descendant_foreach_matcher (const GtkCssSelector      *selector
 
       if (func (selector, &ancestor, data))
         return TRUE;
-
-      /* any matchers are dangerous here, as we may loop forever, but
-        we can terminate now as all possible matches have already been added */
-      if (_gtk_css_matcher_matches_any (matcher))
-       break;
     }
 
   return FALSE;
@@ -389,11 +384,6 @@ gtk_css_selector_sibling_foreach_matcher (const GtkCssSelector      *selector,
 
       if (func (selector, matcher, data))
         return TRUE;
-
-      /* any matchers are dangerous here, as we may loop forever, but
-        we can terminate now as all possible matches have already been added */
-      if (_gtk_css_matcher_matches_any (matcher))
-       break;
     }
 
   return FALSE;