add a new CodeConverter method:redirectMethodCallToStatic

1 files changed, 29 insertions, 0 deletions

diff --git a/src/main/javassist/convert/TransformCallToStatic.java b/src/main/javassist/convert/TransformCallToStatic.java
new file mode 100644
index 00000000..87181edf
--- /dev/null
+++ b/src/main/javassist/convert/TransformCallToStatic.java
@@ -0,0 +1,29 @@
+package javassist.convert;
+
+import javassist.CtMethod;
+import javassist.bytecode.BadBytecode;
+import javassist.bytecode.CodeIterator;
+import javassist.bytecode.ConstPool;
+import javassist.bytecode.Descriptor;
+import javassist.bytecode.Opcode;
+
+public class TransformCallToStatic extends TransformCall {
+    public TransformCallToStatic(Transformer next, CtMethod origMethod, CtMethod substMethod) {
+        super(next, origMethod, substMethod);
+        methodDescriptor = origMethod.getMethodInfo2().getDescriptor();
+    }
+
+    @Override
+    protected int match(int c, int pos, CodeIterator iterator, int typedesc, ConstPool cp) {
+        if (newIndex == 0) {
+            String desc = Descriptor.insertParameter(classname, methodDescriptor);
+            int nt = cp.addNameAndTypeInfo(newMethodname, desc);
+            int ci = cp.addClassInfo(newClassname);
+            newIndex = cp.addMethodrefInfo(ci, nt);
+            constPool = cp;
+        }
+        iterator.writeByte(Opcode.INVOKESTATIC, pos);
+        iterator.write16bit(newIndex, pos + 1);
+        return pos;
+    }
+}