Changeset 196810 in webkit for trunk/Source/JavaScriptCore/runtime/JSString.h

Timestamp:

Feb 19, 2016, 2:39:34 AM (9 years ago)

Author:

[email protected]

Message:

Add isJSString(JSCell*) variant to avoid Cell->JSValue->Cell conversion
​https://bugs.webkit.org/show_bug.cgi?id=154442

Patch by Joseph Pecoraro <Joseph Pecoraro> on 2016-02-19
Reviewed by Saam Barati.

• runtime/JSString.h:

(JSC::isJSString):

File:

• trunk/Source/JavaScriptCore/runtime/JSString.h (modified) (2 diffs)

trunk/Source/JavaScriptCore/runtime/JSString.h

@@ -63 +63 @@
 JSRopeString* jsStringBuilder(VM*);
 
+bool isJSString(JSCell*);
 bool isJSString(JSValue);
 JSString* asString(JSValue);
@@ -647 +648 @@
 }
 
+inline bool isJSString(JSCell* cell)
+{
+    return cell->type() == StringType;
+}
+
 inline bool isJSString(JSValue v)
 {
-    return v.isCell() && v.asCell()->type() == StringType;
+    return v.isCell() && isJSString(v.asCell());
 }