完成javap打印

group17/785396327/4.16/print/ClassFilePrinter.java

@@ -27,17 +27,13 @@ public void print(){
 
         ConstantPoolPrinter cnstPoolPrinter = new ConstantPoolPrinter(clzFile.getConstantPool());
         cnstPoolPrinter.print();
-
-
-
-
     }
 
     public static void main(String[] args){
-        String path = "C:\\Users\\liuxin\\git\\coding2017\\liuxin\\mini-jvm\\bin";
+        String path = "G:\\Git\\homework\\coding2017\\group17\\785396327\\out\\production\\785396327";
         ClassFileLoader loader = new ClassFileLoader();
         loader.addClassPath(path);
-        String className = "com.coderising.jvm.test.EmployeeV1";
+        String className = "jvm_1.EmployeeV1";
 
         ClassFile clzFile = loader.loadClass(className);
 

group17/785396327/4.16/print/ConstantPoolPrinter.java

@@ -7,42 +7,108 @@
  */
 public class ConstantPoolPrinter {
     ConstantPool pool;
-    ConstantPoolPrinter(ConstantPool pool){
+
+    ConstantPoolPrinter(ConstantPool pool) {
         this.pool = pool;
     }
-    public void print(){
+
+    public void print() {
         System.out.println("Constant Pool:");
 
         ConstantInfo.Visitor visitor = new ConstantInfo.Visitor() {
             @Override
             public void visitClassInfo(ClassInfo info) {
-
+                //   #7 = Class              #44            //  jvm_1/EmployeeV1
+                StringBuilder sb = new StringBuilder();
+                      sb.append("Class")
+                        .append("\t\t\t")
+                        .append("#" + info.getUtf8Index())
+                        .append("\t\t\t\t")
+                        .append("//\t")
+                        .append(info.getClassName());
+                System.out.println(sb.toString());
             }
 
             @Override
             public void visitFieldRef(FieldRefInfo info) {
-
+                //  #2 = Fieldref           #7.#37         //  jvm_1/EmployeeV1.name:Ljava/lang/String;
+                StringBuilder sb = new StringBuilder();
+                      sb.append("Fieldref")
+                        .append("\t\t")
+                        .append("#" + info.getClassInfoIndex())
+                        .append(".")
+                        .append("#" + info.getNameAndTypeIndex())
+                        .append("\t\t\t")
+                        .append("//\t")
+                        .append(info.getClassName())
+                        .append(".")
+                        .append(info.getFieldName())
+                        .append(info.getFieldType());
+                System.out.println(sb.toString());
             }
 
             @Override
             public void visitMethodRef(MethodRefInfo info) {
-
+                //  #1 = Methodref          #11.#36        //  java/lang/Object."<init>":()V
+                StringBuilder sb = new StringBuilder();
+                      sb.append("Methodref")
+                        .append("\t\t")
+                        .append("#" + info.getClassInfoIndex())
+                        .append(".")
+                        .append("#" + info.getNameAndTypeIndex())
+                        .append("\t\t\t")
+                        .append("//\t")
+                        .append(info.getClassName())
+                        .append(".")
+                        .append(info.getMethodName());
+                System.out.println(sb.toString());
             }
 
             @Override
             public void visitNameAndType(NameAndTypeInfo info) {
-
+                //  #36 = NameAndType        #16:#28        //  "<init>":()V
+                StringBuilder sb = new StringBuilder();
+                      sb.append("NameAndType")
+                        .append("\t\t")
+                        .append("#" + info.getIndex1())
+                        .append(":")
+                        .append("#" + info.getIndex2())
+                        .append("\t\t\t")
+                        .append("//\t")
+                        .append(info.getTypeInfo())
+                        .append(":")
+                        .append(info.getName());
+                System.out.println(sb.toString());
             }
 
             @Override
             public void visitString(StringInfo info) {
-
+                //  #5 = String             #41            //  Hello , this is class Employee
+                StringBuilder sb = new StringBuilder();
+                      sb.append("String")
+                        .append("\t\t\t")
+                        .append("#" + info.getIndex())
+                        .append("\t\t\t\t")
+                        .append("//\t")
+                        .append(((UTF8Info) info.getConstantInfo(info.getIndex())).getValue());
+                System.out.println(sb.toString());
             }
 
             @Override
             public void visistUTF8(UTF8Info info) {
-
+                //  #32 = Utf8               [Ljava/lang/String;
+                StringBuilder sb = new StringBuilder();
+                      sb.append("Utf8")
+                        .append("\t\t\t")
+                        .append(info.getValue());
+                System.out.println(sb.toString());
             }
         };
+
+        for (int i = 1; i < (Integer) pool.getSize(); i++) {
+            ConstantInfo constantInfo = pool.getConstantInfo(i);
+            System.out.print("#" + i + "\t=\t");
+            constantInfo.accept(visitor);
+        }
     }
 }

group17/785396327/4.5/constant/ClassInfo.java

@@ -21,7 +21,7 @@ public int getType() {
 
     @Override
     public void accept(Visitor visitor) {
-
+        visitor.visitClassInfo(this);
     }
 
     public String getClassName() {

group17/785396327/4.5/constant/FieldRefInfo.java

@@ -17,7 +17,7 @@ public int getType() {
 
     @Override
     public void accept(Visitor visitor) {
-
+        visitor.visitFieldRef(this);
     }
 
     public int getClassInfoIndex() {

group17/785396327/4.5/constant/NameAndTypeInfo.java

@@ -34,7 +34,7 @@ public int getType() {
 
     @Override
     public void accept(Visitor visitor) {
-
+        visitor.visitNameAndType(this);
     }
 
 

group17/785396327/4.5/constant/NullConstantInfo.java

@@ -14,7 +14,7 @@ public int getType() {
 
     @Override
     public void accept(Visitor visitor) {
-
+        System.out.println("null Constant info");
     }
 
 }

group17/785396327/4.5/constant/UTF8Info.java

@@ -22,7 +22,7 @@ public int getType() {
 
     @Override
     public void accept(Visitor visitor) {
-
+        visitor.visistUTF8(this);
     }
 
     @Override

group17/785396327/4.9/expr/InfixToPostfix.java

@@ -0,0 +1,13 @@
+package expr;
+
+import java.util.List;
+
+/**
+ * Created by gongxun on 2017/4/22.
+ */
+public class InfixToPostfix {
+    public static List<Token> convert(String expr) {
+
+        return null;
+    }
+}

group17/785396327/4.9/expr/PostfixExpr.java

@@ -0,0 +1,16 @@
+package expr;
+
+/**
+ * Created by gongxun on 2017/4/22.
+ */
+public class PostfixExpr {
+    String expr = null;
+
+    public PostfixExpr(String expr) {
+        this.expr = expr;
+    }
+
+    public float evaluate() {
+        return 0.0f;
+    }
+}

group17/785396327/4.9/expr/PostfixExprTest.java

@@ -0,0 +1,38 @@
+package expr;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Created by gongxun on 2017/4/22.
+ */
+public class PostfixExprTest {
+    @Before
+    public void setUp() throws Exception {
+    }
+
+    @After
+    public void tearDown() throws Exception {
+    }
+
+    @Test
+    public void testEvaluate() {
+        {
+            PostfixExpr expr = new PostfixExpr("6 5 2 3 + 8 * + 3 + *");
+            Assert.assertEquals(288, expr.evaluate(), 0.0f);
+        }
+        {
+            //9+(3-1)*3+10/2
+            PostfixExpr expr = new PostfixExpr("9 3 1-3*+ 10 2/+");
+            Assert.assertEquals(20, expr.evaluate(),0.0f);
+        }
+
+        {
+            //10-2*3+50
+            PostfixExpr expr = new PostfixExpr("10 2 3 * - 50 +");
+            Assert.assertEquals(54, expr.evaluate(),0.0f);
+        }
+    }
+}

group17/785396327/4.9/expr/PrefixExpr.java

@@ -0,0 +1,16 @@
+package expr;
+
+/**
+ * Created by gongxun on 2017/4/22.
+ */
+public class PrefixExpr {
+    String expr = null;
+
+    public PrefixExpr(String expr) {
+        this.expr = expr;
+    }
+
+    public float evaluate() {
+        return 0.0f;
+    }
+}

group17/785396327/4.9/expr/PrefixExprTest.java

@@ -0,0 +1,45 @@
+package expr;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Created by gongxun on 2017/4/22.
+ */
+public class PrefixExprTest {
+    @Before
+    public void setUp() throws Exception {
+    }
+
+    @After
+    public void tearDown() throws Exception {
+    }
+
+    @Test
+    public void testEvaluate() {
+        {
+            // 2*3+4*5
+            PrefixExpr expr = new PrefixExpr("+ * 2 3* 4 5");
+            Assert.assertEquals(26, expr.evaluate(), 0.001f);
+        }
+        {
+            // 4*2 + 6+9*2/3 -8
+            PrefixExpr expr = new PrefixExpr("-++6/*2 9 3 * 4 2 8");
+            Assert.assertEquals(12, expr.evaluate(),0.001f);
+        }
+        {
+            //(3+4)*5-6
+            PrefixExpr expr = new PrefixExpr("- * + 3 4 5 6");
+            Assert.assertEquals(29, expr.evaluate(),0.001f);
+        }
+        {
+            //1+((2+3)*4)-5
+            PrefixExpr expr = new PrefixExpr("- + 1 * + 2 3 4 5");
+            Assert.assertEquals(16, expr.evaluate(),0.001f);
+        }
+
+
+    }
+}

group17/785396327/4.9/expr/Token.java

@@ -0,0 +1,52 @@
+package expr;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Created by gongxun on 2017/4/22.
+ */
+public class Token {
+    public static final List<String> OPERATORS = Arrays.asList("+", "-", "*", "/");
+    private static final Map<String,Integer> priorities = new HashMap<String,Integer>();
+    static {
+        priorities.put("+", 1);
+        priorities.put("-", 1);
+        priorities.put("*", 2);
+        priorities.put("/", 2);
+    }
+    static final int OPERATOR = 1;
+    static final int NUMBER = 2;
+    String value;
+    int type;
+    public Token(int type, String value){
+        this.type = type;
+        this.value = value;
+    }
+
+    public boolean isNumber() {
+        return type == NUMBER;
+    }
+
+    public boolean isOperator() {
+        return type == OPERATOR;
+    }
+
+    public int getIntValue() {
+        return Integer.valueOf(value).intValue();
+    }
+    public String toString(){
+        return value;
+    }
+
+    public boolean hasHigherPriority(Token t){
+        if(!this.isOperator() && !t.isOperator()){
+            throw new RuntimeException("numbers can't compare priority");
+        }
+        return priorities.get(this.value) - priorities.get(t.value) > 0;
+    }
+
+
+}