fix memory leaks

ios/Elements/RNSVGGroup.m

@@ -15,27 +15,30 @@
     RNSVGSvgView* svg = [self getSvgView];
     [self clip:context];
     
-    for (RNSVGNode *node in self.subviews) {
-        if ([node isKindOfClass:[RNSVGNode class]]) {
-            [node mergeProperties:self mergeList:self.propList inherited:YES];
-            [node renderTo:context];
-            
-            if (node.responsible && !svg.responsible) {
-                svg.responsible = YES;
-            }
+    [self traverseSubviews:^(RNSVGNode *node) {
+        if (node.responsible && !svg.responsible) {
+            svg.responsible = YES;
+            return NO;
         }
-    }
+        return YES;
+    }];
+    
+    [self traverseSubviews:^(RNSVGNode *node) {
+        [node mergeProperties:self mergeList:self.propList inherited:YES];
+        [node renderTo:context];
+        return YES;
+    }];
 }
 
 - (CGPathRef)getPath:(CGContextRef)context
 {
     CGMutablePathRef path = CGPathCreateMutable();
-    for (RNSVGNode *node in self.subviews) {
-        if ([node isKindOfClass:[RNSVGNode class]]) {
-            CGAffineTransform transform = node.matrix;
-            CGPathAddPath(path, &transform, [node getPath:context]);
-        }
-    }
+    [self traverseSubviews:^(RNSVGNode *node) {
+        CGAffineTransform transform = node.matrix;
+        CGPathAddPath(path, &transform, [node getPath:context]);
+        return YES;
+    }];
+    
     return (CGPathRef)CFAutorelease(path);
 }
 
@@ -47,9 +50,7 @@
         if ([node isKindOfClass:[RNSVGNode class]]) {
             if (event) {
                 node.active = NO;
-            }
-            
-            if (node.active) {
+            } else if (node.active) {
                 return node;
             }
 
@@ -76,29 +77,39 @@
         [svg defineTemplate:self templateRef:self.name];
     }
     
-    for (RNSVGNode *node in self.subviews) {
-        if ([node isKindOfClass:[RNSVGNode class]]) {
-            [node saveDefinition];
-        }
-    }
+    [self traverseSubviews:^(RNSVGNode *node) {
+        [node saveDefinition];
+        return YES;
+    }];
+    
 }
 
 - (void)mergeProperties:(__kindof RNSVGNode *)target mergeList:(NSArray<NSString *> *)mergeList
 {
-    for (RNSVGNode *node in self.subviews) {
-        if ([node isKindOfClass:[RNSVGNode class]]) {
-            [node mergeProperties:target mergeList:mergeList];
-        }
-    }
+    [self traverseSubviews:^(RNSVGNode *node) {
+        [node mergeProperties:target mergeList:mergeList];
+        return YES;
+    }];
 }
 
 - (void)resetProperties
+{
+    [self traverseSubviews:^(RNSVGNode *node) {
+        [node resetProperties];
+        return YES;
+    }];
+}
+
+- (void)traverseSubviews:(BOOL (^)(RNSVGNode *node))block
 {
     for (RNSVGNode *node in self.subviews) {
         if ([node isKindOfClass:[RNSVGNode class]]) {
-            [node resetProperties];
+            if (!block(node)) {
+                break;
+            }
         }
     }
 }
 
+
 @end

ios/Elements/RNSVGPath.m

@@ -28,25 +28,31 @@
 
 - (void)renderLayerTo:(CGContextRef)context
 {
-    CGPathRef path = [self getPath:context];
+    if (!self.d) {
+        self.d = [self getPath:context];;
+    }
+    CGPathRef path = self.d;
     if ((!self.fill && !self.stroke) || !path) {
         return;
     }
     
-    // Add path to hitArea
-    CGMutablePathRef hitArea = CGPathCreateMutableCopy(path);
-    if (self.stroke) {
-        // Add stroke to hitArea
-        CGPathRef strokePath = CGPathCreateCopyByStrokingPath(hitArea, nil, self.strokeWidth, self.strokeLinecap, self.strokeLinejoin, self.strokeMiterlimit);
-        CGPathAddPath(hitArea, nil, strokePath);
-        CGPathRelease(strokePath);
+    if ([self getSvgView].responsible) {
+        NSLog(@"asdasdasdsadas");
+        
+        // Add path to hitArea
+        CGMutablePathRef hitArea = CGPathCreateMutableCopy(path);
+        if (self.stroke) {
+            // Add stroke to hitArea
+            CGPathRef strokePath = CGPathCreateCopyByStrokingPath(hitArea, nil, self.strokeWidth, self.strokeLinecap, self.strokeLinejoin, self.strokeMiterlimit);
+            CGPathAddPath(hitArea, nil, strokePath);
+            CGPathRelease(strokePath);
+        }
+        
+        CGAffineTransform transform = self.matrix;
+        self.hitArea = CFAutorelease(CGPathCreateCopyByTransformingPath(hitArea, &transform));
+        CGPathRelease(hitArea);
     }
     
-    CGAffineTransform transform = self.matrix;
-    self.hitArea = CGPathCreateCopyByTransformingPath(hitArea, &transform);
-
-    CGPathRelease(hitArea);
-    
     if (self.opacity == 0) {
         return;
     }

ios/Elements/RNSVGSvgView.m

@@ -50,14 +50,19 @@
     
     for (RNSVGNode *node in self.subviews) {
         if ([node isKindOfClass:[RNSVGNode class]]) {
-            [node saveDefinition];
-            [node renderTo:context];
-            
             if (node.responsible && !self.responsible) {
                 self.responsible = YES;
+                break;
             }
         }
     }
+    
+    for (RNSVGNode *node in self.subviews) {
+        if ([node isKindOfClass:[RNSVGNode class]]) {
+            [node saveDefinition];
+            [node renderTo:context];
+        }
+    }
 //    CGImageRef image = CGBitmapContextCreateImage(context);
 //    NSData *imageData = UIImagePNGRepresentation([[UIImage alloc] initWithCGImage:image]);
 //    NSString *base64 = [imageData base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];