FRAGMENT(JSString, simple) {
js::Rooted<JSString *> empty(cx, JS_NewStringCopyN(cx, NULL, 0));
js::Rooted<JSString *> x(cx, JS_NewStringCopyN(cx, "x", 1));
js::Rooted<JSString *> z(cx, JS_NewStringCopyZ(cx, "z"));
// I expect this will be a non-inlined string.
js::Rooted<JSString *> stars(cx, JS_NewStringCopyZ(cx,
"*************************"
"*************************"
"*************************"
"*************************"));
// This may well be an inlined string.
js::Rooted<JSString *> xz(cx, JS_ConcatStrings(cx, x, z));
// This will probably be a rope.
js::Rooted<JSString *> doubleStars(cx, JS_ConcatStrings(cx, stars, stars));
breakpoint();
(void) empty;
(void) x;
(void) z;
(void) stars;
(void) xz;
(void) doubleStars;
}
JSBool
Output_writeLine (JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
JS_BeginRequest(cx);
JS_EnterLocalRootScope(cx);
JSString* string;
JSString* endLine = JS_NewStringCopyZ(cx, "\n");
if (argc < 1 || !JS_ConvertArguments(cx, argc, argv, "S", &string)) {
JS_ReportError(cx, "Not enough parameters.");
JS_LeaveLocalRootScope(cx);
JS_EndRequest(cx);
return JS_FALSE;
}
jsval property;
string = JS_ConcatStrings(cx, string, endLine);
JS_GetProperty(cx, obj, "content", &property);
property = STRING_TO_JSVAL(JS_ConcatStrings(cx, JS_ValueToString(cx, property), string));
JS_SetProperty(cx, obj, "content", &property);
JS_LeaveLocalRootScope(cx);
JS_EndRequest(cx);
return JS_TRUE;
}
FRAGMENT(JSString, simple) {
AutoSuppressHazardsForTest noanalysis;
JS::Rooted<JSString*> empty(cx, JS_NewStringCopyN(cx, nullptr, 0));
JS::Rooted<JSString*> x(cx, JS_NewStringCopyN(cx, "x", 1));
JS::Rooted<JSString*> z(cx, JS_NewStringCopyZ(cx, "z"));
// I expect this will be a non-inlined string.
JS::Rooted<JSString*> stars(cx,
JS_NewStringCopyZ(cx,
"*************************"
"*************************"
"*************************"
"*************************"));
// This may well be an inlined string.
JS::Rooted<JSString*> xz(cx, JS_ConcatStrings(cx, x, z));
// This will probably be a rope.
JS::Rooted<JSString*> doubleStars(cx, JS_ConcatStrings(cx, stars, stars));
// Ensure we're not confused by typedefs for pointer types.
JSString* xRaw = x;
breakpoint();
use(empty);
use(x);
use(z);
use(stars);
use(xz);
use(doubleStars);
use(xRaw);
}
static void
try_to_chain_stack_trace(JSContext *src_context, JSContext *dst_context,
jsval src_exc) {
/* append current stack of dst_context to stack trace for src_exc.
* we bail if anything goes wrong, just using the src_exc unmodified
* in that case. */
jsval chained, src_stack, dst_stack, new_stack;
JSString *new_stack_str;
JS_BeginRequest(src_context);
JS_BeginRequest(dst_context);
if (!JSVAL_IS_OBJECT(src_exc))
goto out; // src_exc doesn't have a stack trace
/* create a new exception in dst_context to get a stack trace */
gjs_throw_literal(dst_context, "Chained exception");
if (!(JS_GetPendingException(dst_context, &chained) &&
JSVAL_IS_OBJECT(chained)))
goto out; // gjs_throw_literal didn't work?!
JS_ClearPendingException(dst_context);
/* get stack trace for src_exc and chained */
if (!(gjs_object_get_property(dst_context, JSVAL_TO_OBJECT(chained),
"stack", &dst_stack) &&
JSVAL_IS_STRING(dst_stack)))
goto out; // couldn't get chained stack
if (!(gjs_object_get_property(src_context, JSVAL_TO_OBJECT(src_exc),
"stack", &src_stack) &&
JSVAL_IS_STRING(src_stack)))
goto out; // couldn't get source stack
/* add chained exception's stack trace to src_exc */
new_stack_str = JS_ConcatStrings
(dst_context, JSVAL_TO_STRING(src_stack), JSVAL_TO_STRING(dst_stack));
if (new_stack_str==NULL)
goto out; // couldn't concatenate src and dst stacks?!
new_stack = STRING_TO_JSVAL(new_stack_str);
JS_SetProperty(dst_context, JSVAL_TO_OBJECT(src_exc), "stack", &new_stack);
out:
JS_EndRequest(dst_context);
JS_EndRequest(src_context);
}
