第八、九周作业

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/EmployeeV1.java

@@ -0,0 +1,28 @@
+package com.coding.mini_jvm.src.com.coderising.jvm;
+
+public class EmployeeV1 {
+
+
+	private String name;
+    private int age;
+
+    public EmployeeV1(String name, int age) {
+        this.name = name;
+        this.age = age;        
+    }    
+
+    public void setName(String name) {
+        this.name = name;
+    }
+    public void setAge(int age){
+    	this.age = age;
+    }
+    public void sayHello() {        
+    	System.out.println("Hello , this is class Employee ");    	
+    }
+    public static void main(String[] args){
+    	EmployeeV1 p = new EmployeeV1("Andy",29);
+    	p.sayHello();    
+
+    }
+}

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/cmd/BiPushCmd.java

@@ -2,6 +2,10 @@
 
 import com.coding.mini_jvm.src.com.coderising.jvm.clz.ClassFile;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantPool;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.ExecutionResult;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.Heap;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.JavaObject;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.StackFrame;
 
 public class BiPushCmd extends OneOperandCmd {
 
@@ -15,7 +19,13 @@ public String toString(ConstantPool pool) {
 
 		return this.getOffset()+": "+ this.getOpCode()+" " + this.getReadableCodeText() + " " + this.getOperand();
 	}
-
-
+
+	@Override
+	public void execute(StackFrame frame, ExecutionResult result) {
+		int value = this.getOperand();
+		JavaObject jo = Heap.getInstance().newInt(value);
+		frame.getOprandStack().push(jo);
+	}
+
 
 }

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/cmd/ByteCodeCommand.java

@@ -3,6 +3,8 @@
 import com.coding.mini_jvm.src.com.coderising.jvm.clz.ClassFile;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantInfo;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantPool;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.ExecutionResult;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.StackFrame;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -123,5 +125,5 @@ public String getReadableCodeText(){
 		return txt;
 	}
 
-	//public abstract void execute(StackFrame frame,FrameResult result);
+	public abstract void execute(StackFrame frame,ExecutionResult result);
 }

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/cmd/GetFieldCmd.java

@@ -2,6 +2,10 @@
 
 import com.coding.mini_jvm.src.com.coderising.jvm.clz.ClassFile;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantPool;
+import com.coding.mini_jvm.src.com.coderising.jvm.constant.FieldRefInfo;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.ExecutionResult;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.JavaObject;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.StackFrame;
 
 public class GetFieldCmd extends TwoOperandCmd {
 
@@ -15,7 +19,13 @@ public String toString(ConstantPool pool) {
 		return super.getOperandAsField(pool);
 	}
 
-
-
+	@Override
+	public void execute(StackFrame frame, ExecutionResult result) {
+		FieldRefInfo fieldRefInfo = (FieldRefInfo)this.getConstantInfo(this.getIndex());
+		String fieldName = fieldRefInfo.getFieldName();
+		JavaObject jo = frame.getOprandStack().pop();
+		frame.getOprandStack().push(jo.getFieldValue(fieldName));
+	}
+
 
 }

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/cmd/GetStaticFieldCmd.java

@@ -3,6 +3,11 @@
 
 import com.coding.mini_jvm.src.com.coderising.jvm.clz.ClassFile;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantPool;
+import com.coding.mini_jvm.src.com.coderising.jvm.constant.FieldRefInfo;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.ExecutionResult;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.Heap;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.JavaObject;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.StackFrame;
 
 public class GetStaticFieldCmd extends TwoOperandCmd {
 
@@ -17,4 +22,20 @@ public String toString(ConstantPool pool) {
 		return super.getOperandAsField(pool);
 	}
 
+	@Override
+	public void execute(StackFrame frame, ExecutionResult result) {
+		FieldRefInfo fieldRefInfo = (FieldRefInfo)this.getConstantInfo(this.getIndex());
+		String fieldName = fieldRefInfo.getFieldName();
+		String className = fieldRefInfo.getClassName();
+		String fieldType = fieldRefInfo.getFieldType();
+		if("java/lang/System".equals(className)
+				&& "out".equals(fieldName)
+				&& "Ljava/io/PrintStream;".equals(fieldType)){
+			JavaObject jo = Heap.getInstance().newObject(className);
+			frame.getOprandStack().push(jo);
+		}
+//		JavaObject jo = Heap.getInstance().newObject(className);
+//		frame.getOprandStack().push(jo);
+	}
+
 }

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/cmd/InvokeSpecialCmd.java

@@ -3,6 +3,11 @@
 
 import com.coding.mini_jvm.src.com.coderising.jvm.clz.ClassFile;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantPool;
+import com.coding.mini_jvm.src.com.coderising.jvm.constant.MethodRefInfo;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.ExecutionResult;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.MethodArea;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.StackFrame;
+import com.coding.mini_jvm.src.com.coderising.jvm.method.Method;
 
 public class InvokeSpecialCmd extends TwoOperandCmd {
 
@@ -17,6 +22,17 @@ public String toString(ConstantPool pool) {
 		return super.getOperandAsMethod(pool);
 	}
 
-
+	@Override
+	public void execute(StackFrame frame, ExecutionResult result) {
+		MethodRefInfo methodRefInfo = (MethodRefInfo) this.getConstantInfo(this.getIndex());
+		if (methodRefInfo.getClassName().equals("java/lang/Object")
+				&& methodRefInfo.getMethodName().equals("<init>")) {
+			return;
+		}
+		Method nextMethod = MethodArea.getInstance().getMethod(methodRefInfo);
+		result.setNextAction(ExecutionResult.PAUSE_AND_RUN_NEW_FRAME);
+		result.setNextMethod(nextMethod);
+	}
+
 
 }

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/cmd/InvokeVirtualCmd.java

@@ -3,6 +3,12 @@
 
 import com.coding.mini_jvm.src.com.coderising.jvm.clz.ClassFile;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantPool;
+import com.coding.mini_jvm.src.com.coderising.jvm.constant.MethodRefInfo;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.ExecutionResult;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.JavaObject;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.MethodArea;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.StackFrame;
+import com.coding.mini_jvm.src.com.coderising.jvm.method.Method;
 
 public class InvokeVirtualCmd extends TwoOperandCmd {
 
@@ -12,11 +18,25 @@ public InvokeVirtualCmd(ClassFile clzFile,String opCode) {
 
 	@Override
 	public String toString(ConstantPool pool) {
-
 		return super.getOperandAsMethod(pool);
 	}
 
-
-
+	@Override
+	public void execute(StackFrame frame, ExecutionResult result) {
+		MethodRefInfo methodRefInfo = (MethodRefInfo) this.getConstantInfo(this.getIndex());
+		String methodName = methodRefInfo.getMethodName();
+		String className = methodRefInfo.getClassName();
+		if ("java/io/PrintStream".equals(className) && "println".equals(methodName)) {
+			JavaObject jo = frame.getOprandStack().pop();
+			System.out.println("***********"+jo.toString()+"***********");
+
+			frame.getOprandStack().pop();
+			return;
+		}
+		Method nextMethod = MethodArea.getInstance().getMethod(methodRefInfo);
+		result.setNextAction(ExecutionResult.PAUSE_AND_RUN_NEW_FRAME);
+		result.setNextMethod(nextMethod);
+	}
+
 
 }

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/cmd/LdcCmd.java

@@ -5,6 +5,9 @@
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantInfo;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantPool;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.StringInfo;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.ExecutionResult;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.JavaObject;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.StackFrame;
 
 public class LdcCmd extends OneOperandCmd {
 
@@ -26,5 +29,19 @@ public String toString(ConstantPool pool) {
 		return this.getOffset()+":"+this.getOpCode()+" " + this.getReadableCodeText() + " "+  value;
 
 	}
-
+
+	@Override
+	public void execute(StackFrame frame, ExecutionResult result) {
+		ClassFile clzFile = this.getClassFile();
+		ConstantInfo info = (ConstantInfo)clzFile.getConstantPool().getConstantInfo(this.getOperand());
+		String value = "TBD";
+		if (info instanceof StringInfo) {
+			StringInfo strInfo = (StringInfo)info;
+			value = strInfo.toString();
+		}
+		JavaObject jo = new JavaObject(JavaObject.STRING);
+		jo.setStringValue(value);
+		frame.getOprandStack().push(jo);
+	}
+
 }

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/cmd/NewObjectCmd.java

@@ -1,7 +1,12 @@
 package com.coding.mini_jvm.src.com.coderising.jvm.cmd;
 
 import com.coding.mini_jvm.src.com.coderising.jvm.clz.ClassFile;
+import com.coding.mini_jvm.src.com.coderising.jvm.constant.ClassInfo;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantPool;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.ExecutionResult;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.Heap;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.JavaObject;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.StackFrame;
 
 public class NewObjectCmd extends TwoOperandCmd{
 
@@ -15,5 +20,12 @@ public String toString(ConstantPool pool) {
 		return super.getOperandAsClassInfo(pool);
 	}
 
-
+	@Override
+	public void execute(StackFrame frame, ExecutionResult result) {
+		ClassInfo clzInfo = (ClassInfo) clzFile.getConstantPool().getConstantInfo(getIndex());
+		JavaObject jo = Heap.getInstance().newObject(clzInfo.getClassName());
+		frame.getOprandStack().push(jo);
+	}
+
+
 }

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/cmd/NoOperandCmd.java

@@ -3,6 +3,9 @@
 
 import com.coding.mini_jvm.src.com.coderising.jvm.clz.ClassFile;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantPool;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.ExecutionResult;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.JavaObject;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.StackFrame;
 
 public class NoOperandCmd extends ByteCodeCommand{
 
@@ -15,8 +18,37 @@ public String toString(ConstantPool pool) {
 		return this.getOffset()+":" +this.getOpCode() + " "+ this.getReadableCodeText();
 	}
 
-
-
+	@Override
+	public void execute(StackFrame frame, ExecutionResult result) {
+		if (CommandParser.astore_1.equals(this.getOpCode())) {
+			JavaObject jo = frame.getOprandStack().pop();
+			frame.setLocalVariableValue(1, jo);
+		} else if (CommandParser.aload_0.equals(this.getOpCode())) {
+			JavaObject jo = frame.getLocalVariableValue(0);
+			frame.getOprandStack().push(jo);
+		} else if (CommandParser.aload_1.equals(this.getOpCode())) {
+			JavaObject jo = frame.getLocalVariableValue(1);
+			frame.getOprandStack().push(jo);
+		} else if (CommandParser.iload_1.equals(this.getOpCode())) {
+			JavaObject jo = frame.getLocalVariableValue(1);
+			frame.getOprandStack().push(jo);
+		} else if (CommandParser.iload_2.equals(this.getOpCode())) {
+			JavaObject jo = frame.getLocalVariableValue(2);
+			frame.getOprandStack().push(jo);
+		} else if (CommandParser.istore_1.equals(this.getOpCode())) {
+			JavaObject jo = frame.getOprandStack().pop();
+			frame.setLocalVariableValue(1, jo);
+		} else if (CommandParser.voidreturn.equals(this.getOpCode())) {
+			result.setNextAction(ExecutionResult.EXIT_CURRENT_FRAME);
+		} else if (CommandParser.dup.equals(this.getOpCode())) {
+			JavaObject jo = frame.getOprandStack().peek();
+			frame.getOprandStack().push(jo);
+		} else {
+			throw new RuntimeException("this operator ["+this.getOpCode()+"] not support yet");
+		}
+	}
+
+
 	public  int getLength(){
 		return 1;
 	}

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/cmd/PutFieldCmd.java

@@ -3,6 +3,11 @@
 
 import com.coding.mini_jvm.src.com.coderising.jvm.clz.ClassFile;
 import com.coding.mini_jvm.src.com.coderising.jvm.constant.ConstantPool;
+import com.coding.mini_jvm.src.com.coderising.jvm.constant.FieldRefInfo;
+import com.coding.mini_jvm.src.com.coderising.jvm.constant.NameAndTypeInfo;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.ExecutionResult;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.JavaObject;
+import com.coding.mini_jvm.src.com.coderising.jvm.engine.StackFrame;
 
 public class PutFieldCmd extends TwoOperandCmd {
 
@@ -16,5 +21,15 @@ public String toString(ConstantPool pool) {
 		return super.getOperandAsField(pool);
 	}
 
+	@Override
+	public void execute(StackFrame frame, ExecutionResult result) {
+		FieldRefInfo fieldRefInfo = (FieldRefInfo)this.getConstantInfo(this.getIndex());
+		NameAndTypeInfo nameAndTypeInfo = (NameAndTypeInfo)this.getConstantInfo(fieldRefInfo.getNameAndTypeIndex());
+		String fieldName = nameAndTypeInfo.getName();
+		JavaObject fieldValue = frame.getOprandStack().pop();
+		JavaObject objectRef = frame.getOprandStack().pop();
+		objectRef.setFieldValue(fieldName, fieldValue);
+	}
+
 
 }

group24/494800949/src/main/java/com/coding/mini_jvm/src/com/coderising/jvm/engine/ExecutionResult.java

@@ -0,0 +1,57 @@
+package com.coding.mini_jvm.src.com.coderising.jvm.engine;
+
+
+import com.coding.mini_jvm.src.com.coderising.jvm.method.Method;
+
+public class ExecutionResult {
+	public static final int RUN_NEXT_CMD            = 1;
+	public static final int JUMP                    = 2;
+	public static final int EXIT_CURRENT_FRAME      = 3;
+	public static final int PAUSE_AND_RUN_NEW_FRAME = 4;
+
+	private int nextAction = RUN_NEXT_CMD;
+
+	private int nextCmdOffset = 0;
+
+	private Method nextMethod;
+
+	public Method getNextMethod() {
+		return nextMethod;
+	}
+
+	public void setNextMethod(Method nextMethod) {
+		this.nextMethod = nextMethod;
+	}
+
+
+	public void setNextAction(int action){
+		this.nextAction = action;
+	}
+	public boolean isPauseAndRunNewFrame(){
+		return this.nextAction == PAUSE_AND_RUN_NEW_FRAME;
+	}
+	public boolean isExitCurrentFrame(){
+		return this.nextAction == EXIT_CURRENT_FRAME;
+	}
+
+	public boolean isRunNextCmd(){
+		return this.nextAction == RUN_NEXT_CMD;
+	}
+
+	public boolean isJump(){
+		return this.nextAction == JUMP;
+	}
+
+	public int getNextCmdOffset() {
+		return nextCmdOffset;
+	}
+
+	public void setNextCmdOffset(int nextCmdOffset) {
+		this.nextCmdOffset = nextCmdOffset;
+	}
+
+
+
+
+
+}