diff --git a/build.gradle b/build.gradle
index b44fbb4..8190ee4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -55,7 +55,7 @@ dependencies {
 }
 group = "org.bdware.sc"
 
-version = "1.7.6"
+version = "1.7.8"
 tasks.processResources.setDuplicatesStrategy(DuplicatesStrategy.INCLUDE)
 
 task copyLibs(type: Copy) {
diff --git a/src/main/base/org/bdware/sc/node/ContractNode.java b/src/main/base/org/bdware/sc/node/ContractNode.java
index 8c84638..d2512a8 100644
--- a/src/main/base/org/bdware/sc/node/ContractNode.java
+++ b/src/main/base/org/bdware/sc/node/ContractNode.java
@@ -130,6 +130,7 @@ public class ContractNode {
     public void merge(ContractNode contract) {
         sigRequired |= contract.sigRequired;
         instrumentBranch |= contract.instrumentBranch;
+        imports.addAll(contract.getImports());
         for (FunctionNode fn : contract.functions) {
             functions.add(fn);
             functionMap.put(fn.functionName, fn);
@@ -237,7 +238,7 @@ public class ContractNode {
     }
 
     public void maintainRouteJoinInfo(JsonObject methodRouteInfoMap, JsonObject methodJoinInfoMap,
-            JsonObject dependentFunctions) {
+                                      JsonObject dependentFunctions) {
         // all functions存了ContractNode中，所有的FunctionNode
         List<FunctionNode> allFunctions = getFunctions();
         for (FunctionNode functionNode : allFunctions) {
@@ -262,10 +263,33 @@ public class ContractNode {
                 }
             }
         }
+
+        for (InterfaceNode interfaceNode : interfaceMap.values()) {
+            AnnotationNode doopAnnotation = interfaceNode.getAnnotation("DOOP");
+            DoipOperationInfo doipOperationInfo = interfaceNode.getDoipOperationInfo();
+            if (doopAnnotation != null && doipOperationInfo != null) {
+                RouteInfo routeInfo = interfaceNode.getRouteInfo();
+                JoinInfo joinInfo = interfaceNode.getJoinInfo();
+                if (routeInfo != null) {
+                    packSourceFunctionAndDependentFunctions(getFunction(routeInfo.funcName),
+                            dependentFunctions);
+                    methodRouteInfoMap.add(doipOperationInfo.operationName,
+                            JsonUtil.parseObjectAsJsonObject(routeInfo));
+                }
+                if (joinInfo != null) {
+                    packSourceFunctionAndDependentFunctions(getFunction(joinInfo.joinCountFuncName),
+                            dependentFunctions);
+                    packSourceFunctionAndDependentFunctions(getFunction(joinInfo.joinFuncName),
+                            dependentFunctions);
+                    methodJoinInfoMap.add(doipOperationInfo.operationName,
+                            JsonUtil.parseObjectAsJsonObject(joinInfo));
+                }
+            }
+        }
     }
 
     public void packSourceFunctionAndDependentFunctions(FunctionNode sourceFunctionNode,
-            JsonObject functions) {
+                                                        JsonObject functions) {
         if (sourceFunctionNode == null)
             return;
         functions.addProperty(sourceFunctionNode.functionName, sourceFunctionNode.plainText());
@@ -291,8 +315,16 @@ public class ContractNode {
                                 + " -> " + annotationNode.getType());
                 }
                 functionNode.annotations.addAll(node.annotations);
-            } else
-                throw new RuntimeException("unimplemented functions:" + node.functionName);
+            } else {
+                //now we accept only interfaces.
+                //just ignore!
+                //  throw new RuntimeException("unimplemented functions:" + node.functionName);
+            }
+
         }
     }
+
+    public Collection<InterfaceNode> getInterfaces() {
+        return interfaceMap.values();
+    }
 }
diff --git a/src/main/base/org/bdware/sc/visitor/FunctionDependencyVisitor.java b/src/main/base/org/bdware/sc/visitor/FunctionDependencyVisitor.java
index fc65c42..6965dd4 100644
--- a/src/main/base/org/bdware/sc/visitor/FunctionDependencyVisitor.java
+++ b/src/main/base/org/bdware/sc/visitor/FunctionDependencyVisitor.java
@@ -5,6 +5,8 @@ import org.bdware.sc.node.FunctionNode;
 import org.bdware.sc.parser.YJSParser;
 import org.bdware.sc.parser.YJSParserBaseVisitor;
 
+import java.util.List;
+
 public class FunctionDependencyVisitor extends YJSParserBaseVisitor<FunctionNode> {
 
     public static String APPLY = ".apply";
@@ -21,12 +23,19 @@ public class FunctionDependencyVisitor extends YJSParserBaseVisitor<FunctionNode
     @Override
     public FunctionNode visitArgumentsExpression(YJSParser.ArgumentsExpressionContext ctx) {
         super.visitArgumentsExpression(ctx);
-        for (FunctionNode f : cn.getFunctions()) {
-            if (ctx.singleExpression().getText().equals(f.functionName)
-                    || ctx.singleExpression().getText().equals(f.functionName + APPLY)
-                    || ctx.singleExpression().getText().equals(f.functionName + CALL)) {
-                fn.addDependentFunctions(f.functionName);
-                break;
+        String funText  = ctx.singleExpression().getText();
+        if (funText.endsWith(APPLY)) funText = funText.replaceAll(APPLY+"$","");
+        if (funText.endsWith(CALL)) funText = funText.replaceAll(CALL+"$","");
+        if (cn.getFunction(funText)!=null)
+            fn.addDependentFunctions(funText);
+        if (ctx.arguments() != null) {
+            List<YJSParser.SingleExpressionContext> singleExpress = ctx.arguments().singleExpression();
+            if (singleExpress != null && singleExpress.size() > 0) {
+                for (YJSParser.SingleExpressionContext sin : singleExpress) {
+                    funText = sin.getText();
+                    if (cn.getFunction(funText)!=null)
+                        fn.addDependentFunctions(funText);
+                }
             }
         }
         return fn;