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authorKonstantin Tokarev <annulen@yandex.ru>2016-08-25 19:20:41 +0300
committerKonstantin Tokarev <annulen@yandex.ru>2017-02-02 12:30:55 +0000
commit6882a04fb36642862b11efe514251d32070c3d65 (patch)
treeb7959826000b061fd5ccc7512035c7478742f7b0 /Source/JavaScriptCore/API/JSManagedValue.h
parentab6df191029eeeb0b0f16f127d553265659f739e (diff)
downloadqtwebkit-6882a04fb36642862b11efe514251d32070c3d65.tar.gz
Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)
Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>
Diffstat (limited to 'Source/JavaScriptCore/API/JSManagedValue.h')
-rw-r--r--Source/JavaScriptCore/API/JSManagedValue.h57
1 files changed, 37 insertions, 20 deletions
diff --git a/Source/JavaScriptCore/API/JSManagedValue.h b/Source/JavaScriptCore/API/JSManagedValue.h
index 5ff3f83cb..d13733d08 100644
--- a/Source/JavaScriptCore/API/JSManagedValue.h
+++ b/Source/JavaScriptCore/API/JSManagedValue.h
@@ -27,37 +27,54 @@
#define JSManagedValue_h
#import <JavaScriptCore/JSBase.h>
+#import <JavaScriptCore/WebKitAvailability.h>
#if JSC_OBJC_API_ENABLED
@class JSValue;
@class JSContext;
-// JSManagedValue represents a "conditionally retained" JSValue.
-// "Conditionally retained" means that as long as either the JSManagedValue
-// JavaScript value is reachable through the JavaScript object graph
-// or the JSManagedValue object is reachable through the external Objective-C
-// object graph as reported to the JSVirtualMachine using
-// addManagedReference:withOwner:, the corresponding JavaScript value will
-// be retained. However, if neither of these conditions are true, the
-// corresponding JSValue will be released and set to nil.
-//
-// The primary use case for JSManagedValue is for safely referencing JSValues
-// from the Objective-C heap. It is incorrect to store a JSValue into an
-// Objective-C heap object, as this can very easily create a reference cycle,
-// keeping the entire JSContext alive.
-NS_CLASS_AVAILABLE(10_9, NA)
+/*!
+@interface
+@discussion JSManagedValue represents a "conditionally retained" JSValue.
+ "Conditionally retained" means that as long as the JSManagedValue's
+ JSValue is reachable through the JavaScript object graph,
+ or through the Objective-C object graph reported to the JSVirtualMachine using
+ addManagedReference:withOwner:, the corresponding JSValue will
+ be retained. However, if neither graph reaches the JSManagedValue, the
+ corresponding JSValue will be released and set to nil.
+
+The primary use for a JSManagedValue is to store a JSValue in an Objective-C
+or Swift object that is exported to JavaScript. It is incorrect to store a JSValue
+in an object that is exported to JavaScript, since doing so creates a retain cycle.
+*/
+NS_CLASS_AVAILABLE(10_9, 7_0)
@interface JSManagedValue : NSObject
-// Convenience method for creating JSManagedValues from JSValues.
+/*!
+@method
+@abstract Create a JSManagedValue from a JSValue.
+@param value
+@result The new JSManagedValue.
+*/
+ (JSManagedValue *)managedValueWithValue:(JSValue *)value;
++ (JSManagedValue *)managedValueWithValue:(JSValue *)value andOwner:(id)owner NS_AVAILABLE(10_10, 8_0);
-// Create a JSManagedValue.
-- (id)initWithValue:(JSValue *)value;
+/*!
+@method
+@abstract Create a JSManagedValue.
+@param value
+@result The new JSManagedValue.
+*/
+- (instancetype)initWithValue:(JSValue *)value;
-// Get the JSValue to which this JSManagedValue refers. If the JavaScript value has been collected,
-// this method returns nil.
-- (JSValue *)value;
+/*!
+@property
+@abstract Get the JSValue from the JSManagedValue.
+@result The corresponding JSValue for this JSManagedValue or
+ nil if the JSValue has been collected.
+*/
+@property (readonly, strong) JSValue *value;
@end