JSBool
xpc_DumpEvalInJSStackFrame(JSContext* cx, JSUint32 frameno, const char* text)
{
JSStackFrame* fp;
JSStackFrame* iter = nsnull;
JSUint32 num = 0;
if(!cx || !text)
{
puts("invalid params passed to xpc_DumpEvalInJSStackFrame!");
return JS_FALSE;
}
printf("js[%d]> %s\n", frameno, text);
while(nsnull != (fp = JS_FrameIterator(cx, &iter)))
{
if(num == frameno)
break;
num++;
}
if(!fp)
{
puts("invalid frame number!");
return JS_FALSE;
}
JSAutoRequest ar(cx);
JSExceptionState* exceptionState = JS_SaveExceptionState(cx);
JSErrorReporter older = JS_SetErrorReporter(cx, xpcDumpEvalErrorReporter);
jsval rval;
JSString* str;
JSAutoByteString bytes;
if(JS_EvaluateInStackFrame(cx, fp, text, strlen(text), "eval", 1, &rval) &&
nsnull != (str = JS_ValueToString(cx, rval)) &&
bytes.encode(cx, str))
{
printf("%s\n", bytes.ptr());
}
else
puts("eval failed!");
JS_SetErrorReporter(cx, older);
JS_RestoreExceptionState(cx, exceptionState);
return JS_TRUE;
}
JSBool
xpc_DumpEvalInJSStackFrame(JSContext* cx, uint32_t frameno, const char* text)
{
JSStackFrame* fp;
JSStackFrame* iter = nullptr;
uint32_t num = 0;
if (!cx || !text) {
DebugDump("%s", "invalid params passed to xpc_DumpEvalInJSStackFrame!\n");
return false;
}
DebugDump("js[%d]> %s\n", frameno, text);
while (nullptr != (fp = JS_BrokenFrameIterator(cx, &iter))) {
if (num == frameno)
break;
num++;
}
if (!fp) {
DebugDump("%s", "invalid frame number!\n");
return false;
}
JSAutoRequest ar(cx);
JSExceptionState* exceptionState = JS_SaveExceptionState(cx);
JSErrorReporter older = JS_SetErrorReporter(cx, xpcDumpEvalErrorReporter);
jsval rval;
JSString* str;
JSAutoByteString bytes;
if (JS_EvaluateInStackFrame(cx, fp, text, strlen(text), "eval", 1, &rval) &&
nullptr != (str = JS_ValueToString(cx, rval)) &&
bytes.encode(cx, str)) {
DebugDump("%s\n", bytes.ptr());
} else
DebugDump("%s", "eval failed!\n");
JS_SetErrorReporter(cx, older);
JS_RestoreExceptionState(cx, exceptionState);
return true;
}
JSBool
jsd_EvaluateScriptInStackFrame(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe,
const char *bytes, uintN length,
const char *filename, uintN lineno,
JSBool eatExceptions, jsval *rval)
{
JSBool retval;
JSBool valid;
JSExceptionState* exceptionState = NULL;
JSContext *cx;
JS_ASSERT(JSD_CURRENT_THREAD() == jsdthreadstate->thread);
JSD_LOCK_THREADSTATES(jsdc);
valid = jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe);
JSD_UNLOCK_THREADSTATES(jsdc);
if (!valid)
return JS_FALSE;
cx = jsdthreadstate->context;
JS_ASSERT(cx);
if (eatExceptions)
exceptionState = JS_SaveExceptionState(cx);
JS_ClearPendingException(cx);
jsd_StartingEvalUsingFilename(jsdc, filename);
retval = JS_EvaluateInStackFrame(cx, jsdframe->fp, bytes, length,
filename, lineno, rval);
jsd_FinishedEvalUsingFilename(jsdc, filename);
if (eatExceptions)
JS_RestoreExceptionState(cx, exceptionState);
return retval;
}
