jvm

group11/252308879/mini-jvm/src/main/java/com/pan/jvm/attr/AttributeInfo.java

@@ -0,0 +1,19 @@
+package com.pan.jvm.attr;
+
+public abstract class AttributeInfo {
+	public static final String CODE = "Code";
+	public static final String CONST_VALUE = "ConstantValue";
+	public static final String EXCEPTIONS = "Exceptions";
+	public static final String LINE_NUM_TABLE = "LineNumberTable";
+	public static final String LOCAL_VAR_TABLE = "LocalVariableTable";
+	public static final String STACK_MAP_TABLE = "StackMapTable";
+	int attrNameIndex;				
+	int attrLen ;
+	public AttributeInfo(int attrNameIndex, int attrLen) {
+
+		this.attrNameIndex = attrNameIndex;
+		this.attrLen = attrLen;
+	}
+
+
+}

group11/252308879/mini-jvm/src/main/java/com/pan/jvm/attr/CodeAttr.java

@@ -0,0 +1,56 @@
+package com.pan.jvm.attr;
+
+import com.pan.jvm.clz.ClassFile;
+import com.pan.jvm.constant.ConstantPool;
+import com.pan.jvm.loader.ByteCodeIterator;
+
+
+public class CodeAttr extends AttributeInfo {
+	private int maxStack ;
+	private int maxLocals ;
+	private int codeLen ;
+	private String code;
+	public String getCode() {
+		return code;
+	}
+
+	//private ByteCodeCommand[] cmds ;
+	//public ByteCodeCommand[] getCmds() {
+	//	return cmds;
+	//}
+	private LineNumberTable lineNumTable;
+	private LocalVariableTable localVarTable;
+	private StackMapTable stackMapTable;
+
+	public CodeAttr(int attrNameIndex, int attrLen, int maxStack, int maxLocals, int codeLen,String code /*ByteCodeCommand[] cmds*/) {
+		super(attrNameIndex, attrLen);
+		this.maxStack = maxStack;
+		this.maxLocals = maxLocals;
+		this.codeLen = codeLen;
+		this.code = code;
+		//this.cmds = cmds;
+	}
+
+	public void setLineNumberTable(LineNumberTable t) {
+		this.lineNumTable = t;
+	}
+
+	public void setLocalVariableTable(LocalVariableTable t) {
+		this.localVarTable = t;		
+	}
+
+	public static CodeAttr parse(ClassFile clzFile, ByteCodeIterator iter){
+
+
+		return null;
+	}
+	private void setStackMapTable(StackMapTable t) {
+		this.stackMapTable = t;
+
+	}
+
+
+
+
+
+}

group11/252308879/mini-jvm/src/main/java/com/pan/jvm/attr/LineNumberTable.java

@@ -0,0 +1,42 @@
+package com.pan.jvm.attr;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.pan.jvm.loader.ByteCodeIterator;
+
+public class LineNumberTable extends AttributeInfo {
+	List<LineNumberItem> items = new ArrayList<LineNumberItem>();
+
+	private static class LineNumberItem{
+		int startPC;
+		int lineNum;
+		public int getStartPC() {
+			return startPC;
+		}
+		public void setStartPC(int startPC) {
+			this.startPC = startPC;
+		}
+		public int getLineNum() {
+			return lineNum;
+		}
+		public void setLineNum(int lineNum) {
+			this.lineNum = lineNum;
+		}
+	}
+	public void addLineNumberItem(LineNumberItem item){
+		this.items.add(item);
+	}
+	public LineNumberTable(int attrNameIndex, int attrLen) {
+		super(attrNameIndex, attrLen);
+
+	}
+
+	public static LineNumberTable parse(ByteCodeIterator iter){
+
+		return null;
+	}
+
+
+
+}

group11/252308879/mini-jvm/src/main/java/com/pan/jvm/attr/LocalVariableItem.java

@@ -0,0 +1,39 @@
+package com.pan.jvm.attr;
+
+public class LocalVariableItem {
+	private int startPC;
+	private int length;
+	private int nameIndex;
+	private int descIndex;
+	private int index;
+	public int getStartPC() {
+		return startPC;
+	}
+	public void setStartPC(int startPC) {
+		this.startPC = startPC;
+	}
+	public int getLength() {
+		return length;
+	}
+	public void setLength(int length) {
+		this.length = length;
+	}
+	public int getNameIndex() {
+		return nameIndex;
+	}
+	public void setNameIndex(int nameIndex) {
+		this.nameIndex = nameIndex;
+	}
+	public int getDescIndex() {
+		return descIndex;
+	}
+	public void setDescIndex(int descIndex) {
+		this.descIndex = descIndex;
+	}
+	public int getIndex() {
+		return index;
+	}
+	public void setIndex(int index) {
+		this.index = index;
+	}
+}

group11/252308879/mini-jvm/src/main/java/com/pan/jvm/attr/LocalVariableTable.java

@@ -0,0 +1,28 @@
+package com.pan.jvm.attr;
+
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.pan.jvm.constant.ConstantPool;
+
+import com.pan.jvm.loader.ByteCodeIterator;
+
+public class LocalVariableTable extends AttributeInfo{
+
+	List<LocalVariableItem> items = new ArrayList<LocalVariableItem>();
+
+	public LocalVariableTable(int attrNameIndex, int attrLen) {
+		super(attrNameIndex, attrLen);		
+	}
+
+	public static LocalVariableTable parse(ByteCodeIterator iter){
+
+		return null;
+	}
+	private void addLocalVariableItem(LocalVariableItem item) {
+		this.items.add(item);		
+	}
+
+
+}

group11/252308879/mini-jvm/src/main/java/com/pan/jvm/attr/StackMapTable.java

@@ -0,0 +1,30 @@
+package com.pan.jvm.attr;
+
+
+import com.pan.jvm.loader.ByteCodeIterator;
+
+public class StackMapTable extends AttributeInfo{
+
+	private String originalCode;
+
+	public StackMapTable(int attrNameIndex, int attrLen) {
+		super(attrNameIndex, attrLen);		
+	}
+
+	public static StackMapTable parse(ByteCodeIterator iter){
+		int index = iter.nextU2ToInt();
+		int len = iter.nextU4ToInt();
+		StackMapTable t = new StackMapTable(index,len);
+
+		//后面的StackMapTable太过复杂， 不再处理， 只把原始的代码读进来保存
+		String code = iter.nextUxToHexString(len);
+		t.setOriginalCode(code);
+
+		return t;
+	}
+
+	private void setOriginalCode(String code) {
+		this.originalCode = code;
+
+	}
+}

group11/252308879/mini-jvm/src/main/java/com/pan/jvm/clz/AccessFlag.java

@@ -1,26 +1,25 @@
 package com.pan.jvm.clz;
 
 public class AccessFlag {
-    private int flagValue;
+	private int flagValue;
 
-    public AccessFlag(int value) {
-        this.flagValue = value;
-    }
+	public AccessFlag(int value) {
+		this.flagValue = value;
+	}
 
-    public int getFlagValue() {
-        return flagValue;
-    }
-
-    public void setFlagValue(int flag) {
-        this.flagValue = flag;
-    }
-
-    public boolean isPublicClass() {
-        return (this.flagValue & 0x0001) != 0;
-    }
-
-    public boolean isFinalClass() {
-        return (this.flagValue & 0x0010) != 0;
-    }
+	public int getFlagValue() {
+		return flagValue;
+	}
 
+	public void setFlagValue(int flag) {
+		this.flagValue = flag;
+	}
+
+	public boolean isPublicClass(){
+		return (this.flagValue & 0x0001) != 0;
+	}
+	public boolean isFinalClass(){
+		return (this.flagValue & 0x0010) != 0;
+	}
+
 }