From 2b2249e873c4adfd2dd6e8f1f2489ccd9f6aa021 Mon Sep 17 00:00:00 2001
From: gegy1000
Date: Sat, 19 May 2018 17:02:46 +0200
Subject: Initial port to ASM

---
 .../java/cuchaz/enigma/analysis/ParsedJar.java     | 72 ++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 src/main/java/cuchaz/enigma/analysis/ParsedJar.java

(limited to 'src/main/java/cuchaz/enigma/analysis/ParsedJar.java')

diff --git a/src/main/java/cuchaz/enigma/analysis/ParsedJar.java b/src/main/java/cuchaz/enigma/analysis/ParsedJar.java
new file mode 100644
index 0000000..78ef722
--- /dev/null
+++ b/src/main/java/cuchaz/enigma/analysis/ParsedJar.java
@@ -0,0 +1,72 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * <p>
+ * Contributors:
+ * Jeff Martin - initial API and implementation
+ ******************************************************************************/
+
+package cuchaz.enigma.analysis;
+
+import cuchaz.enigma.mapping.ClassEntry;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.tree.ClassNode;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.*;
+import java.util.function.Consumer;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+public class ParsedJar {
+	private final Map<String, ClassNode> nodes = new LinkedHashMap<>();
+
+	public ParsedJar(JarFile jar) throws IOException {
+		try {
+			// get the jar entries that correspond to classes
+			Enumeration<JarEntry> entries = jar.entries();
+			while (entries.hasMoreElements()) {
+				JarEntry entry = entries.nextElement();
+				// is this a class file?
+				if (entry.getName().endsWith(".class")) {
+					try (InputStream input = jar.getInputStream(entry)) {
+						// read the ClassNode from the jar
+						ClassReader reader = new ClassReader(input);
+						ClassNode node = new ClassNode();
+						reader.accept(node, 0);
+						String path = entry.getName().substring(0, entry.getName().length() - ".class".length());
+						nodes.put(path, node);
+					}
+				}
+			}
+		} finally {
+			jar.close();
+		}
+	}
+
+	public void visit(Consumer<ClassNode> visitor) {
+		for (ClassNode node : nodes.values()) {
+			visitor.accept(node);
+		}
+	}
+
+	public int getClassCount() {
+		return nodes.size();
+	}
+
+	public List<ClassEntry> getClassEntries() {
+		List<ClassEntry> entries = new ArrayList<>(nodes.size());
+		for (ClassNode node : nodes.values()) {
+			entries.add(new ClassEntry(node.name));
+		}
+		return entries;
+	}
+
+	public ClassNode getClassNode(String name) {
+		return nodes.get(name);
+	}
+}
-- 
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