/** Convert a jsval to a string and store it in struct bookmark.
*
* @param ctx
* Context for memory allocations and error reports.
* @param val
* The @c jsval that should be converted.
* @param[in,out] result
* A string allocated with mem_alloc().
* On success, this function frees the original string, if any.
*
* @return JS_TRUE if successful. On error, report the error to
* SpiderMonkey and return JS_FALSE. */
static JSBool
jsval_to_bookmark_string(JSContext *ctx, jsid id, unsigned char **result)
{
JSString *jsstr = NULL;
unsigned char *str;
jsval val;
/* jsstring_to_utf8() might GC; protect the string to come. */
if (!JS_AddNamedStringRoot(ctx, &jsstr, "jsval_to_bookmark_string"))
return JS_FALSE;
if (JS_TRUE != JS_IdToValue(ctx, id, &val)) {
JS_RemoveStringRoot(ctx, &jsstr);
return JS_FALSE;
}
jsstr = JS_ValueToString(ctx, val);
if (jsstr == NULL) {
JS_RemoveStringRoot(ctx, &jsstr);
return JS_FALSE;
}
str = jsstring_to_utf8(ctx, jsstr, NULL);
if (str == NULL) {
JS_RemoveStringRoot(ctx, &jsstr);
return JS_FALSE;
}
JS_RemoveStringRoot(ctx, &jsstr);
mem_free_set(result, str);
return JS_TRUE;
}
JSString*
jsd_GetValueString(JSDContext* jsdc, JSDValue* jsdval)
{
JSContext* cx = jsdc->dumbContext;
JSExceptionState* exceptionState;
JSCrossCompartmentCall *call = NULL;
jsval stringval;
JSString *string;
JSBool needWrap;
JSObject *scopeObj;
if(jsdval->string)
return jsdval->string;
/* Reuse the string without copying or re-rooting it */
if(JSVAL_IS_STRING(jsdval->val)) {
jsdval->string = JSVAL_TO_STRING(jsdval->val);
return jsdval->string;
}
JS_BeginRequest(cx);
/* Objects call JS_ValueToString in their own compartment. */
scopeObj = JSVAL_IS_OBJECT(jsdval->val) ? JSVAL_TO_OBJECT(jsdval->val) : jsdc->glob;
call = JS_EnterCrossCompartmentCall(cx, scopeObj);
if(!call) {
JS_EndRequest(cx);
return NULL;
}
exceptionState = JS_SaveExceptionState(cx);
string = JS_ValueToString(cx, jsdval->val);
JS_RestoreExceptionState(cx, exceptionState);
JS_LeaveCrossCompartmentCall(call);
call = NULL;
if(string) {
stringval = STRING_TO_JSVAL(string);
call = JS_EnterCrossCompartmentCall(cx, jsdc->glob);
}
if(!string || !call || !JS_WrapValue(cx, &stringval)) {
if(call)
JS_LeaveCrossCompartmentCall(call);
JS_EndRequest(cx);
return NULL;
}
jsdval->string = JSVAL_TO_STRING(stringval);
if(!JS_AddNamedStringRoot(cx, &jsdval->string, "ValueString"))
jsdval->string = NULL;
JS_LeaveCrossCompartmentCall(call);
JS_EndRequest(cx);
return jsdval->string;
}
JSString*
jsd_GetValueString(JSDContext* jsdc, JSDValue* jsdval)
{
JSContext* cx = jsdc->dumbContext;
JSExceptionState* exceptionState;
JSCompartment* oldCompartment = NULL;
jsval stringval;
JS::RootedString string(cx);
JS::RootedObject scopeObj(cx);
if(jsdval->string)
return jsdval->string;
/* Reuse the string without copying or re-rooting it */
if(JSVAL_IS_STRING(jsdval->val)) {
jsdval->string = JSVAL_TO_STRING(jsdval->val);
return jsdval->string;
}
JS_BeginRequest(cx);
/* Objects call JS_ValueToString in their own compartment. */
scopeObj = !JSVAL_IS_PRIMITIVE(jsdval->val) ? JSVAL_TO_OBJECT(jsdval->val) : jsdc->glob;
oldCompartment = JS_EnterCompartment(cx, scopeObj);
exceptionState = JS_SaveExceptionState(cx);
string = JS_ValueToString(cx, jsdval->val);
JS_RestoreExceptionState(cx, exceptionState);
JS_LeaveCompartment(cx, oldCompartment);
oldCompartment = NULL;
if(string) {
stringval = STRING_TO_JSVAL(string);
oldCompartment = JS_EnterCompartment(cx, jsdc->glob);
}
if(!string || !JS_WrapValue(cx, &stringval)) {
if(oldCompartment)
JS_LeaveCompartment(cx, oldCompartment);
JS_EndRequest(cx);
return NULL;
}
jsdval->string = JSVAL_TO_STRING(stringval);
if(!JS_AddNamedStringRoot(cx, &jsdval->string, "ValueString"))
jsdval->string = NULL;
JS_LeaveCompartment(cx, oldCompartment);
JS_EndRequest(cx);
return jsdval->string;
}
