success run js on iOS

iOS/Pod/Classes/DoricContext.m

@@ -6,7 +6,31 @@
 //
 
 #import "DoricContext.h"
+#import "DoricContextManager.h"
 
 @implementation DoricContext
 
+- (instancetype)init {
+    if(self = [super init]){
+        _driver = [DoricDriver instance];
+    }
+    return self;
+}
+    
+- (instancetype)initWithScript:(NSString *)script source:(NSString *)source {
+    return [[DoricContextManager instance] createContext:script source:source];
+}
+
+- (void)dealloc {
+    [[DoricContextManager instance] destroyContext:self];
+}
+
+- (DoricAsyncResult *)callEntity:(NSString *)method, ... {
+    va_list args;
+    va_start(args, method);
+    DoricAsyncResult *ret = [self.driver invokeContextEntity:self.contextId method:method arguments:args];
+    va_end(args);
+    return ret;
+}
+
 @end