ADD week 5

02-Easy5/E5/sources/androidx/appcompat/app/LayoutIncludeDetector.java

@@ -0,0 +1,68 @@
+package androidx.appcompat.app;
+
+import android.util.AttributeSet;
+import java.lang.ref.WeakReference;
+import java.util.ArrayDeque;
+import java.util.Deque;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+/* loaded from: classes.dex */
+class LayoutIncludeDetector {
+    private final Deque<WeakReference<XmlPullParser>> mXmlParserStack = new ArrayDeque();
+
+    LayoutIncludeDetector() {
+    }
+
+    boolean detect(AttributeSet attributeSet) {
+        if (!(attributeSet instanceof XmlPullParser)) {
+            return false;
+        }
+        XmlPullParser xmlPullParser = (XmlPullParser) attributeSet;
+        if (xmlPullParser.getDepth() != 1) {
+            return false;
+        }
+        XmlPullParser popOutdatedAttrHolders = popOutdatedAttrHolders(this.mXmlParserStack);
+        this.mXmlParserStack.push(new WeakReference<>(xmlPullParser));
+        return shouldInheritContext(xmlPullParser, popOutdatedAttrHolders);
+    }
+
+    private static boolean shouldInheritContext(XmlPullParser xmlPullParser, XmlPullParser xmlPullParser2) {
+        if (xmlPullParser2 == null || xmlPullParser == xmlPullParser2) {
+            return false;
+        }
+        try {
+            if (xmlPullParser2.getEventType() == 2) {
+                return "include".equals(xmlPullParser2.getName());
+            }
+            return false;
+        } catch (XmlPullParserException unused) {
+            return false;
+        }
+    }
+
+    private static XmlPullParser popOutdatedAttrHolders(Deque<WeakReference<XmlPullParser>> deque) {
+        while (!deque.isEmpty()) {
+            XmlPullParser xmlPullParser = deque.peek().get();
+            if (!isParserOutdated(xmlPullParser)) {
+                return xmlPullParser;
+            }
+            deque.pop();
+        }
+        return null;
+    }
+
+    private static boolean isParserOutdated(XmlPullParser xmlPullParser) {
+        if (xmlPullParser == null) {
+            return true;
+        }
+        try {
+            if (xmlPullParser.getEventType() != 3) {
+                return xmlPullParser.getEventType() == 1;
+            }
+            return true;
+        } catch (XmlPullParserException unused) {
+            return true;
+        }
+    }
+}