fix iOS crash when call Destory

doric-iOS/Pod/Classes/DoricContext.h

@@ -43,6 +43,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, strong) DoricRootNode *rootNode;
 @property(nonatomic, strong) NSMutableDictionary <NSString *, NSMutableDictionary <NSString *, DoricViewNode *> *> *headNodes;
 @property(nonatomic, copy) NSString *extra;
+@property(nonatomic, assign) BOOL destroyed;
 
 - (instancetype)initWithScript:(NSString *)script source:(NSString *)source extra:(NSString *)extra;
 

doric-iOS/Pod/Classes/DoricContext.m

@@ -60,6 +60,7 @@ - (DoricViewNode *)targetViewNode:(NSString *)viewId {
 }
 
 - (void)dealloc {
+    _destroyed = YES;
     [[DoricContextManager instance] destroyContext:self];
     [self callEntity:DORIC_ENTITY_DESTROY withArgumentsArray:@[]];
     [self.driver destroyContext:self.contextId];

doric-iOS/Pod/Classes/Extension/DoricBridgeExtension.m

@@ -34,6 +34,9 @@ @implementation DoricBridgeExtension
 
 - (id)callNativeWithContextId:(NSString *)contextId module:(NSString *)module method:(NSString *)method callbackId:(NSString *)callbackId argument:(id)argument {
    __strong DoricContext *context = [[DoricContextManager instance] getContext:contextId];
+    if (context.destroyed) {
+        return nil;
+    }
     Class pluginClass = [self.registry acquireNativePlugin:module];
     DoricNativePlugin *nativePlugin = context.pluginInstanceMap[module];
     if (nativePlugin == nil) {

doric-iOS/Pod/Classes/Plugin/DoricShaderPlugin.m

@@ -35,7 +35,9 @@ - (void)render:(NSDictionary *)argument withPromise:(DoricPromise *)promise {
     __weak typeof(self) _self = self;
     dispatch_async(dispatch_get_main_queue(), ^{
         __strong typeof(_self) self = _self;
-
+        if (self.doricContext == nil) {
+            return;
+        }
         NSString *viewId = argument[@"id"];
 
         if (self.doricContext.rootNode.viewId == nil && [@"Root" isEqualToString:argument[@"type"]]) {
@@ -53,6 +55,9 @@ - (void)render:(NSDictionary *)argument withPromise:(DoricPromise *)promise {
 
 - (void)command:(NSDictionary *)argument withPromise:(DoricPromise *)promise {
     dispatch_async(dispatch_get_main_queue(), ^{
+        if (self.doricContext == nil) {
+            return;
+        }
         NSArray *viewIds = argument[@"viewIds"];
         id args = argument[@"args"];
         NSString *name = argument[@"name"];