C++ (Cpp) AbstractFramePtr::actuals示例

示例#1

static void
CopyStackFrameArguments(const AbstractFramePtr frame, HeapValue *dst, unsigned totalArgs)
{
    JS_ASSERT_IF(frame.isStackFrame(), !frame.asStackFrame()->runningInIon());

    unsigned numActuals = frame.numActualArgs();
    unsigned numFormals = frame.callee()->nargs;
    JS_ASSERT(numActuals <= totalArgs);
    JS_ASSERT(numFormals <= totalArgs);
    JS_ASSERT(Max(numActuals, numFormals) == totalArgs);

    /* Copy formal arguments. */
    Value *src = frame.formals();
    Value *end = src + numFormals;
    while (src != end)
        (dst++)->init(*src++);

    /* Copy actual argument which are not contignous. */
    if (numFormals < numActuals) {
        src = frame.actuals() + numFormals;
        end = src + (numActuals - numFormals);
        while (src != end)
            (dst++)->init(*src++);
    }
}