chore: restore original directory structure (project under code-review-graph-main/)

2026-08-31 13:08:20 +08:00
parent ecc55158c1
commit ecfd03a21c
404 changed files with 0 additions and 0 deletions
@@ -0,0 +1,47 @@
+#import <Foundation/Foundation.h>
+#import "Logger.h"
+
+@interface Calculator : NSObject
+@property(nonatomic) NSInteger result;
+- (NSInteger)add:(NSInteger)a to:(NSInteger)b;
+- (void)reset;
+ (Calculator *)sharedCalculator;
+@end
+
+@implementation Calculator
+
+- (NSInteger)add:(NSInteger)a to:(NSInteger)b {
+    NSInteger sum = a + b;
+    self.result = sum;
+    [self logResult:sum];
+    return sum;
+}
+
+- (void)reset {
+    self.result = 0;
+    NSLog(@"Calculator reset");
+}
+
+- (void)logResult:(NSInteger)value {
+    NSLog(@"Result: %ld", (long)value);
+}
+
+ (Calculator *)sharedCalculator {
+    static Calculator *instance = nil;
+    if (instance == nil) {
+        instance = [[Calculator alloc] init];
+    }
+    return instance;
+}
+
+@end
+
+int main(int argc, const char * argv[]) {
+    @autoreleasepool {
+        Calculator *calc = [Calculator sharedCalculator];
+        NSInteger r = [calc add:3 to:4];
+        [calc reset];
+        NSLog(@"Final: %ld", (long)r);
+    }
+    return 0;
+}