+void CYThrow(JSContextRef context, JSValueRef value);
+
+/* JavaScript Properties {{{ */
+JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index) {
+ JSValueRef exception(NULL);
+ JSValueRef value(JSObjectGetPropertyAtIndex(context, object, index, &exception));
+ CYThrow(context, exception);
+ return value;
+}
+
+JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
+ JSValueRef exception(NULL);
+ JSValueRef value(JSObjectGetProperty(context, object, name, &exception));
+ CYThrow(context, exception);
+ return value;
+}
+
+void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value) {
+ JSValueRef exception(NULL);
+ JSObjectSetPropertyAtIndex(context, object, index, value, &exception);
+ CYThrow(context, exception);
+}
+
+void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value) {
+ JSValueRef exception(NULL);
+ JSObjectSetProperty(context, object, name, value, kJSPropertyAttributeNone, &exception);
+ CYThrow(context, exception);
+}
+/* }}} */
+/* JavaScript Strings {{{ */
+JSStringRef CYCopyJSString(id value) {
+ // XXX: this definition scares me; is anyone using this?!
+ return value == NULL ? NULL : JSStringCreateWithCFString(reinterpret_cast<CFStringRef>([value description]));
+}
+
+JSStringRef CYCopyJSString(const char *value) {
+ return value == NULL ? NULL : JSStringCreateWithUTF8CString(value);
+}
+
+JSStringRef CYCopyJSString(JSStringRef value) {
+ return value == NULL ? NULL : JSStringRetain(value);
+}
+
+JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value) {
+ if (JSValueIsNull(context, value))
+ return NULL;
+ JSValueRef exception(NULL);
+ JSStringRef string(JSValueToStringCopy(context, value, &exception));
+ CYThrow(context, exception);
+ return string;
+}
+
+class CYJSString {
+ private:
+ JSStringRef string_;
+
+ void Clear_() {
+ if (string_ != NULL)
+ JSStringRelease(string_);
+ }
+
+ public:
+ CYJSString(const CYJSString &rhs) :
+ string_(CYCopyJSString(rhs.string_))
+ {
+ }
+
+ template <typename Arg0_>
+ CYJSString(Arg0_ arg0) :
+ string_(CYCopyJSString(arg0))
+ {
+ }
+
+ template <typename Arg0_, typename Arg1_>
+ CYJSString(Arg0_ arg0, Arg1_ arg1) :
+ string_(CYCopyJSString(arg0, arg1))
+ {
+ }
+
+ CYJSString &operator =(const CYJSString &rhs) {
+ Clear_();
+ string_ = CYCopyJSString(rhs.string_);
+ return *this;
+ }
+
+ ~CYJSString() {
+ Clear_();
+ }
+
+ void Clear() {
+ Clear_();
+ string_ = NULL;
+ }
+
+ operator JSStringRef() const {
+ return string_;
+ }
+};
+
+CFStringRef CYCopyCFString(JSStringRef value) {
+ return JSStringCopyCFString(kCFAllocatorDefault, value);
+}
+
+CFStringRef CYCopyCFString(JSContextRef context, JSValueRef value) {
+ return CYCopyCFString(CYJSString(context, value));
+}
+
+/* }}} */
+