NSArray.any()

Closes #9.
mxcl · Mar 1, 2014 · d5c7a2f · d5c7a2f
1 parent 7e1211a
commit d5c7a2f
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Showing 4 changed files with 24 additions and 1 deletion.
diff --git a/NSArray+Ruby.m b/NSArray+Ruby.m
@@ -253,6 +253,15 @@ - (NSComparisonResult)compare:(NSArray *)array {
     };
 }
 
+- (BOOL(^)(BOOL(^)(id o)))any {
+    return ^(BOOL(^block)(id o)){
+        for (id o in self)
+            if (block(o))
+                return YES;
+        return NO;
+    };
+}
+
 @end
 
 

diff --git a/README.markdown b/README.markdown
@@ -435,6 +435,14 @@ BOOL rv = @[@1, @2, @3].none(NSString.class);
 // rv => YES
 ```
 
+###NSArray.any()
+```objc
+BOOL rv = @[@1, @2, @3].any(^BOOL(id o){
+	return [o intValue] == 3;
+});
+// rv => YES
+```
+
 ###NSDictionary.extend()
 ```objc
 id rv = @{@1: @1, @2: @4}.extend(@{@1: @9, @10: @100});

diff --git a/YOLO.h b/YOLO.h
@@ -6,6 +6,7 @@
 
 @interface NSArray (RubyEnumerable)
 - (BOOL(^)(id blockOrClass))all;
+- (BOOL(^)(BOOL (^)(id o)))any;
 - (NSArray *(^)(void (^)(id o)))each;
 - (NSArray *(^)(void (^)(id o, uint index)))eachWithIndex;
 - (id(^)(BOOL (^)(id o)))find;

diff --git a/tests b/tests
@@ -459,6 +459,11 @@ int main() {
     STAssertEqualObjects(aa, bb, @"");
 }
 
+- (void)testAny {
+    NSArray *aa = @[@1, @2, @3, @4];
+    STAssertTrue(aa.any(^BOOL(id o){ return [o intValue] == 4; }), @"");
+}
+
 @end
 
 
@@ -468,7 +473,7 @@ __EOBJC__
 FRAMEWORKS = "/Applications/Xcode.app/Contents/Developer/Library/Frameworks"
 
 File.open('/tmp/YOLOtests.m', 'w') do |f|
-  f.puts("\n")  # make line numbers line up
+  f.puts("\n\n")  # make line numbers line up
   f.puts(OBJC)
 end