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authorOswald Buddenhagen <oswald.buddenhagen@qt.io>2017-05-30 12:48:17 +0200
committerOswald Buddenhagen <oswald.buddenhagen@qt.io>2017-05-30 12:48:17 +0200
commit881da28418d380042aa95a97f0cbd42560a64f7c (patch)
treea794dff3274695e99c651902dde93d934ea7a5af /Source/JavaScriptCore/API/JSManagedValue.h
parent7e104c57a70fdf551bb3d22a5d637cdcbc69dbea (diff)
parent0fcedcd17cc00d3dd44c718b3cb36c1033319671 (diff)
downloadqtwebkit-881da28418d380042aa95a97f0cbd42560a64f7c.tar.gz
Merge 'wip/next' into dev
Change-Id: Iff9ee5e23bb326c4371ec8ed81d56f2f05d680e9
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