support MethodInfo binding

bytekit/src/main/java/com/taobao/arthas/bytekit/asm/binding/Binding.java

@@ -312,6 +312,21 @@ public abstract class Binding {
         }
     }
 
+    @Documented
+    @Retention(RetentionPolicy.RUNTIME)
+    @java.lang.annotation.Target(ElementType.PARAMETER)
+    @BindingParserHandler(parser = MethodInfoBindingParser.class)
+    public static @interface MethodInfo {
+        boolean optional() default false;
+    }
+
+    public static class MethodInfoBindingParser implements BindingParser {
+        @Override
+        public Binding parse(Annotation annotation) {
+            return new MethodDeclarationBinding();
+        }
+    }
+
     @Documented
     @Retention(RetentionPolicy.RUNTIME)
     @java.lang.annotation.Target(ElementType.PARAMETER)

bytekit/src/main/java/com/taobao/arthas/bytekit/asm/binding/MethodInfoBinding.java

@@ -0,0 +1,30 @@
+package com.taobao.arthas.bytekit.asm.binding;
+
+import com.alibaba.arthas.deps.org.objectweb.asm.Type;
+import com.alibaba.arthas.deps.org.objectweb.asm.tree.InsnList;
+import com.alibaba.arthas.deps.org.objectweb.asm.tree.MethodNode;
+import com.taobao.arthas.bytekit.asm.MethodProcessor;
+import com.taobao.arthas.bytekit.utils.AsmOpUtils;
+
+/**
+ * method name | method desc 的方式组织
+ * 
+ * TODO 是否要有 line number ?
+ * 
+ * @author hengyunabc 2020-05-16
+ *
+ */
+public class MethodInfoBinding extends Binding {
+
+    @Override
+    public void pushOntoStack(InsnList instructions, BindingContext bindingContext) {
+        MethodProcessor methodProcessor = bindingContext.getMethodProcessor();
+        MethodNode methodNode = methodProcessor.getMethodNode();
+        AsmOpUtils.ldc(instructions, methodNode.name + methodNode.desc);
+    }
+
+    @Override
+    public Type getType(BindingContext bindingContext) {
+        return Type.getType(String.class);
+    }
+}