From 67eeb5251349658d057d76f3daf766922889f264 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=87=91=E6=88=9F?= <jinji.lf@alibaba-inc.com>
Date: Fri, 15 May 2020 00:39:37 +0800
Subject: [PATCH] replace new operator with n.e.w method

---
 .../translator/TestableClassTranslator.java   | 42 +++++++++++++++++++
 .../translator/tree/TestableFieldAccess.java  | 16 +++++++
 .../tree/TestableMethodInvocation.java        | 15 +++++++
 .../com/alibaba/testable/util/ConstPool.java  |  2 +-
 4 files changed, 74 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/com/alibaba/testable/translator/tree/TestableFieldAccess.java
 create mode 100644 src/main/java/com/alibaba/testable/translator/tree/TestableMethodInvocation.java

diff --git a/src/main/java/com/alibaba/testable/translator/TestableClassTranslator.java b/src/main/java/com/alibaba/testable/translator/TestableClassTranslator.java
index 2a302e6..0d27970 100644
--- a/src/main/java/com/alibaba/testable/translator/TestableClassTranslator.java
+++ b/src/main/java/com/alibaba/testable/translator/TestableClassTranslator.java
@@ -1,9 +1,15 @@
 package com.alibaba.testable.translator;
 
+import com.alibaba.testable.translator.tree.TestableFieldAccess;
+import com.alibaba.testable.translator.tree.TestableMethodInvocation;
+import com.alibaba.testable.util.ConstPool;
 import com.sun.tools.javac.tree.JCTree;
 import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
+import com.sun.tools.javac.tree.TreeMaker;
 import com.sun.tools.javac.tree.TreeTranslator;
 import com.sun.tools.javac.util.List;
+import com.sun.tools.javac.util.ListBuffer;
+import com.sun.tools.javac.util.Name;
 
 import java.lang.reflect.Modifier;
 
@@ -14,6 +20,8 @@ import java.lang.reflect.Modifier;
  */
 public class TestableClassTranslator extends TreeTranslator {
 
+    private final TreeMaker treeMaker;
+
     /**
      * Methods to inject
      */
@@ -23,6 +31,10 @@ public class TestableClassTranslator extends TreeTranslator {
         return methods;
     }
 
+    public TestableClassTranslator(TreeMaker treeMaker) {
+        this.treeMaker = treeMaker;
+    }
+
     @Override
     public void visitClassDef(JCTree.JCClassDecl jcClassDecl) {
         super.visitClassDef(jcClassDecl);
@@ -35,4 +47,34 @@ public class TestableClassTranslator extends TreeTranslator {
         methods = methods.append(jcMethodDecl);
     }
 
+    @Override
+    public void visitExec(JCTree.JCExpressionStatement jcExpressionStatement) {
+        if (jcExpressionStatement.expr.getClass().equals(JCTree.JCNewClass.class)) {
+            JCTree.JCNewClass newClassExpr = (JCTree.JCNewClass)jcExpressionStatement.expr;
+            Name className = ((JCTree.JCIdent)newClassExpr.clazz).name;
+            Name.Table nameTable = className.table;
+            try {
+                JCTree.JCExpression classType = new TestableFieldAccess(treeMaker.Ident(className),
+                    nameTable.fromString("class"), null);
+                ListBuffer<JCTree.JCExpression> args = ListBuffer.of(classType);
+                args.addAll(newClassExpr.args);
+                jcExpressionStatement.expr = new TestableMethodInvocation(null,
+                    new TestableFieldAccess(treeMaker.Ident(nameTable.fromString(ConstPool.SN_PKG_CLS)),
+                        nameTable.fromString(ConstPool.SN_METHOD), null), args.toList());
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+        super.visitExec(jcExpressionStatement);
+    }
+
+    @Override
+    public void visitApply(JCTree.JCMethodInvocation tree) {
+        super.visitApply(tree);
+    }
+
+    @Override
+    public void visitNewClass(JCTree.JCNewClass jcNewClass) {
+        super.visitNewClass(jcNewClass);
+    }
 }
diff --git a/src/main/java/com/alibaba/testable/translator/tree/TestableFieldAccess.java b/src/main/java/com/alibaba/testable/translator/tree/TestableFieldAccess.java
new file mode 100644
index 0000000..6acc56d
--- /dev/null
+++ b/src/main/java/com/alibaba/testable/translator/tree/TestableFieldAccess.java
@@ -0,0 +1,16 @@
+package com.alibaba.testable.translator.tree;
+
+import com.sun.tools.javac.code.Symbol;
+import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.util.Name;
+
+/**
+ * @author flin
+ */
+public class TestableFieldAccess extends JCTree.JCFieldAccess {
+
+    public TestableFieldAccess(JCExpression selected, Name name, Symbol sym) {
+        super(selected, name, sym);
+    }
+
+}
diff --git a/src/main/java/com/alibaba/testable/translator/tree/TestableMethodInvocation.java b/src/main/java/com/alibaba/testable/translator/tree/TestableMethodInvocation.java
new file mode 100644
index 0000000..fd7a452
--- /dev/null
+++ b/src/main/java/com/alibaba/testable/translator/tree/TestableMethodInvocation.java
@@ -0,0 +1,15 @@
+package com.alibaba.testable.translator.tree;
+
+import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.util.List;
+
+/**
+ * @author flin
+ */
+public class TestableMethodInvocation extends JCTree.JCMethodInvocation {
+
+    public TestableMethodInvocation(List<JCExpression> typeargs, JCExpression meth, List<JCExpression> args) {
+        super(typeargs, meth, args);
+    }
+
+}
diff --git a/src/main/java/com/alibaba/testable/util/ConstPool.java b/src/main/java/com/alibaba/testable/util/ConstPool.java
index 69ec0a7..19c23c1 100644
--- a/src/main/java/com/alibaba/testable/util/ConstPool.java
+++ b/src/main/java/com/alibaba/testable/util/ConstPool.java
@@ -11,5 +11,5 @@ public final class ConstPool {
     public static final String SN_PKG = "n";
     public static final String SN_CLS = "e";
     public static final String SN_METHOD = "w";
-
+    public static final String SN_PKG_CLS = "n.e";
 }